RU2497987C2 - Method of controlling washing machine - Google Patents

Abstract

FIELD: textiles, paper.

SUBSTANCE: method of controlling the washing machine is proposed, having a drum with the rotation axis passing through the center of the drum, according to which the drum is rotated in the first movement, with a first predetermined angular velocity so that the drum reference point set initially in the initial position is rotated around the axis of rotation, and the reference point is any point on the lateral side of the drum, then the angular velocity of the drum is changed while moving the reference point by the first predetermined distance around the axis of rotation of the drum, the drum rotation is performed with the second predetermined angular velocity, and the angular velocity of the drum is changed while moving the reference point by the second predetermined distance around the axis of drum rotation so that the drum reference point returns to the position which substantially represents the initial position.

EFFECT: various movements of the drum drive in accordance with each of the washing cycles and stages of each cycle.

12 cl, 22 dwg, 4 tbl

Description

FIELD OF THE INVENTION

This description relates to a washing machine and to a method for controlling it.

State of the art

Washing machines are devices that are commonly used for washing and / or drying tissue products. Washing machines may include a drum rotatably mounted inside the housing, the drum configured to accommodate laundry items for processing therein. In a top-loading washing machine, the drum may be oriented substantially vertically, with an opening at its upper end through which items of laundry can be received. In a front-loading washing machine, the drum can be oriented essentially horizontally, or with a slight slope, with an opening at its front end through which laundry items can be received. The movement of the drum and the friction between the laundry items, washing water and washing agents, and the inside of the drum can facilitate the removal of contaminants from the laundry items.

SUMMARY OF THE INVENTION

Technical challenge

To solve the problems, the purpose of the present invention is to provide a method of controlling a washing machine, which includes various movements of the drum.

The solution of the problem

To achieve these goals and other advantages, and in accordance with the purpose of the invention, as embodied and generally described here, a method of operating a washing machine having a drum with a rotation axis mounted through the center of the drum, the method comprising: the drum is rotated in a first movement comprising rotating the drum at a first predetermined rotation speed such that the reference point on the drum, originally set in its initial position, rotates around an axis of rotation in which the reference point represents th any point on the side of the drum, change the speed of rotation of the drum when the reference point has moved a first predetermined distance around the axis of rotation of the drum, resume rotation of the drum with a second predetermined speed of rotation and change the speed of rotation of the drum after moving the reference point a second predetermined distance around the axis of rotation the drum so that the reference point of the drum returns to a position essentially representing the initial position.

Preferred Effects of the Invention

The present invention has the following preferred effects.

According to the control method, various drum movements are provided and the efficiency of the washing, rinsing and spin cycles can be improved.

In addition, according to the control method, various combinations of drum movements are provided based on the weight of the laundry, the type of laundry, the type of laundry detergent, the degree of soiling and the selected program.

Brief Description of the Drawings

Embodiments will be described in detail with reference to the following drawings, in which like reference numerals refer to like elements in which:

in FIG. 1 is a perspective view showing an exploded view of parts of an exemplary washing machine embodied as outlined herein;

in FIG. 2 is an exploded view of parts of another exemplary washing machine embodied as outlined herein;

in FIG. 3a-3g, 4a-d, 5a-5f and 6 illustrate various drum movements and laundry movement patterns, in accordance with an embodiment and a general description provided herein; and

in FIG. 7-21 and 26 are flowcharts of various programs including drum movements shown in FIG. 3a-3g, 4a-d, 5a-5f and 6, in accordance with embodiments, as described generally herein; and

in FIG. 22-25 illustrate effects and conditions for determining movements.

DETAILED DESCRIPTION OF THE INVENTION

I. WASHING MACHINE

The washing machine and its control method, as embodied and broadly described herein, will be described with reference to the attached drawings. In FIG. 1 is a perspective view showing an exploded view of parts of a washing machine according to a first embodiment, as described generally herein, in which control methods in accordance with various embodiments can be applied.

With reference to FIG. 1, a washing machine 100 in accordance with a first embodiment includes a housing 110 configured to determine its appearance, a tub 120 provided in the housing 110 for containing washing water therein, and a rotary drum 130 provided in the tub 120. The cabinet 110 determines the appearance of the washing machine 100. A door 113 is provided at an opening 114 of the cabinet 110, and the user opens the door 113 to load laundry into the cabinet 110.

A tank 120 is provided in the housing 110 for containing washing water therein. The drum 130 can rotate inside the tank 120, and it can accommodate linen. In this case, a plurality of lifts 135 may be provided in the drum 130 for lifting and dropping the laundry during washing. The drum 130 includes a plurality of through holes 131 that allow washing water contained in the tub 120 to pass through them. The tub 120 may be supported by one or more springs provided on the outside of the tub 120. An engine 140 is provided on the rear surface of the tub 120, and motor 140 rotates drum 130. When vibration is generated by drum 130 rotated by engine 140, tank 120 vibrates while being connected to drum 130. When drum 130 rotates, vibration generated by drum 130b and tank 120 can be absorbed by the damper Positioned under the tub 120.

As shown in FIG. 1, the tub 120 and the drum 130 may be provided substantially parallel to the base plate of the housing 110. Alternatively, the rear portions of the tub 120 and the drum 130 may be inclined, with the open end of the drum 130 pointing slightly upward, which contributes to loading laundry into drum 130.

A control panel 115 may be provided on a predetermined portion of the front of the cabinet 110. A user may select a washing machine program through the control panel 115 or may recognize information related to the washing machine. For example, a program selection part 117 configured by a user to select a specific washing program may be provided on the control panel 115. In addition, an option selection part 118 may be provided so as to allow the user to adjust the operating conditions of each cycle or step provided for in the selected program, and a display part 119 may be provided on the control panel 115 to display information about the current operation of the washing machine. Additional details of the washing machine are described in US Pat. No. 6,460,382 B1, issued October 8, 2002, and in US Application No. 12/704923, filed February 12, 2010, the full disclosure of which is incorporated herein by reference.

In FIG. 2 is a perspective view showing an exploded view of parts of a washing machine in accordance with another embodiment, as described generally herein. A washing machine in accordance with various embodiments, as broadly described herein, may include a tank fixedly mounted in the housing, or a tank mounted in the housing through a flexible structure, such as a suspension module, and thus not fixed rigidly on it, as shown in FIG. 2. In addition, the tank support structure may be a cross between support through the suspension module and a fully fixed structure. Thus, the tank can be flexibly supported through the suspension module, which will be described below, it can be supported rigidly, being in a more rigidly fixed state than in the above state of flexible support. In alternative embodiments, a washing machine may be provided without a housing. For example, the installation space of the built-in washing machine can be defined by the wall of the structure, instead of the housing. Thus, in some embodiments, a housing configured to form an independent appearance may not be provided.

With reference to FIG. 2, the tank may include a front part 200 of the tank and a rear part 220 of the tank, consisting of a rear portion of the front part 200 of the tank. The front part 200 of the tank and the rear part 220 of the tank can be assembled using screws or other appropriate mounting mechanism, and a predetermined space is formed in it to accommodate the drum. The rear portion 220 of the tank includes an opening formed on its rear surface, and the rear gasket 250 may be connected to the inner circumference of the opening. The rear gasket 250 may be connected to the rear of the tank 230, and the rear of the tank 230 may include a through hole having a shaft that is installed through its center.

The rear gasket 250 is sealed and connected to each of the rear part 230 of the tank and the rear part 220 of the tank to prevent leakage of water for washing from the tank. Since the back of the tank 230 vibrates when the drum rotates, the back of the tank 230 can be located at a predetermined distance from the back of the tank 220, which eliminates the interference of the back of the tank 220. In addition, the rear gasket 250 may be formed from a flexible material to allow relative movement of the rear of the tank 230, which does not interfere with the rear of the tank 220. The rear gasket 250 may include a corrugated portion that is capable of being stretched to a sufficient length to allow relative movement of the rear portion 230 of the tank. This embodiment provides the connection of the rear gasket 250 to the rear of the tank 230, and the present invention is not limited thereto. The rear gasket 250 is configured to seal the gap between the tank and the drive part (not shown), including the shaft 351 and the bearing housing 400, which allows relative movement of the drive part relative to the tank. As a result, the shapes and connected objects of the rear gasket 250 can be changed without any limits, provided this function is provided. Flexible material 280, which will be described below as a front gasket, can be installed on the front portion of the front of the tank 200.

The drum may be made from the front of the drum 300, the center of the drum 320 and the rear of the drum 340. Ball balancers 310 and 330 can be mounted on the front and rear portions of the drum, respectively. The rear portion 340 of the drum can be connected to the spider 350, and the spider 350 can be connected to the shaft 351. The drum rotates inside the tank under the action of the rotational force transmitted through the shaft 351.

The shaft 351 may be coupled to the engine and may be passed through the back of the tank 230. In some embodiments, an engine may be coupled to shaft 351 concentrically. In some embodiments, the motor may be directly coupled to the shaft 351, and in particular, the rotor of the motor may be directly coupled to the shaft 351. In alternative embodiments, the motor and shaft 351 may be coupled indirectly to each other, for example, they may be coupled through the belt.

The bearing housing 400 may be secured to the rear of the tank 230 to support shaft rotation between the engine and the rear of the tank 230. The stator can be fixedly mounted on the bearing housing 400. And the rotor can be located around the stator. As mentioned above, the rotor can be directly connected to the shaft 351, wherein the motor is an engine of the type of motor with an external rotor, which can be directly connected to the shaft. The bearing housing 400 can be held on the base 600 via a suspension module. The suspension module may include a perpendicular suspension and an inclined suspension configured to support the bearing housing 400 with respect to the forward and reverse directions. For example, the suspension module in accordance with this embodiment may include three perpendicular (vertical, as shown in FIG. 2) suspensions 500, 510 and 520, and two inclined (angled or beveled, as shown in FIG. 2) suspensions 450 and 530 configured to support the bearing housing 400 with respect to the forward and reverse directions. The suspension module may be connected to the base 600 with a predetermined elastic transformation, which allows the forward / backward and / or right / left drum movement, and thus it is not rigidly connected. Thus, the suspension module can be supported on the base with a sufficient specified elasticity to allow rotation at a given angle in the forward / backward and right / left directions relative to the points connected to the base. For such an elastic suspension, a perpendicular suspension can be mounted on the base using a rubber sleeve or other mechanism, respectively.

The perpendicular suspension of the suspension module can elastically absorb the vibration of the drum, and the inclined suspension can absorb the vibration. Thus, the perpendicular suspension can be used as a spring and the inclined suspension as a damping means in a vibration system including a spring and a damping means.

The tank is installed inside the housing, and vibration of the drum can be damped by the suspension module. As a result, the washing machine in accordance with this embodiment may have a substantially independent support structure between the tub and the drum, or may have a structure in which vibrations of the drum are not directly transmitted to the tub.

II. DRUM ROTATION MOVEMENT

The diversification of drum drive motions and their combination, as embodied and broadly described herein, can provide significant improvements in washing capabilities, noise / vibration, energy consumption and customer satisfaction. A control method that provides improved washability will be described. The effect of washing by hand can be embodied using various patterns of movement of linen. For example, the effect of washing by hand can be embodied on the basis of a combination of massage and / or unraveling, and / or shock, and / or swing, and / or friction, and / or squeezing / filtering.

Such various laundry movement patterns can be embodied by various drum drive motions and a combination (s) of various drum drive motions. Drum drive motions may include combinations of rotation directions and rotational speeds. The laundry placed inside the drum may have different falling directions, falling points and falling distances, in connection with the movements of the drum drive. In this regard, linen can perform various movements inside the drum. The movements of the drum drive can be implemented, for example, by controlling the direction of rotation and / or the speed of the engine that drives the drum.

When the drum rotates, the laundry is lifted by one or more lifts 135 provided on the inner wall of the circumference of the drum. In this regard, it is possible to control the direction of rotation of the drum, and the impact applied to the laundry may vary, respectively. Thus, the mechanical force exerted on the laundry, such as the friction generated between the laundry elements, the friction generated between the laundry and water, and the impact when the laundry is dropped, can be changed. In other words, the degree of impact or washing applied to the laundry items for washing the laundry may vary, and the degree of distribution of the laundry, or its turnover inside the drum, may vary, respectively.

As a result, such a control method of the washing machine can provide various movements of the drum drive, and the movements of the drum drive are changed in accordance with each of the cycles and the specific step constituting this cycle, so that the optimal mechanical force can be used to process the laundry, depending on the type washable laundry, pollution levels and other such factors. In this regard, the washing efficiency of the laundry can be improved. In addition, the excess time required during a typical drum drive movement can be eliminated.

In some embodiments, for implementing such various drum drive motions, engine 140 may be a direct coupled type engine. Thus, the engine may have a stator mounted on the rear surface 120 of the tank, and a rotor that rotates the drum 120 directly. Since the direction of rotation and torque of the direct coupled type motor can be controlled, a time delay or backlash can be eliminated, and then the movement of the drum drive can be controlled accordingly.

In contrast, drum drive movements that allow time delay or backlash, such as tipping motion or rotation motion, can be embodied in an engine type with an indirect connection including a pulley so that its torque can be transmitted to the shaft through the pulley. However, a mediated connection type engine may have limited applicability.

The movement of the drum drive can be implemented under the control of the engine 140. As a result, the engine control method can be diversified, and then various movements of the drum drive can be achieved.

The patterns of movement of the laundry and the movement of the drive of the drum, to achieve the structure of the movement of linen, will be described in detail below.

The structure of the massaging movement of the laundry can be achieved if the friction between the laundry and the drum is maximum. For example, when a drum rotates continuously in a predetermined direction at a predetermined speed or less, the laundry can be swung to achieve a massaging effect, if the rotation speed of the drum driven with tipping motion is defined as the reference speed, the predetermined speed may be the reference speed. For example, the movement of a drum drive configured to rotate a drum at a predetermined speed or less in a predetermined direction can be defined as a “rolling” movement.

The structure of the untangling movement can be embodied, for example, using the tipping movement. The tipping movement can be defined as the movement made with the possibility of continuous rotation of the drum, at a reference speed, in a given direction. The structure of the unraveling movement drops the laundry inside the drum, with an average level of discharge distance and medium intensity friction.

The structure of movement upon impact can be achieved by dropping the laundry inside the drum from the maximum discharge distance. For example, if the drum rotates at a predetermined speed or higher to raise the laundry to the highest point within the drum, and then the drum is suddenly braked, such an impact effect can be achieved. Such a movement of the drum drive can be defined as a “step motion”.

The swing motion pattern can be achieved when the drum rotates at a predetermined speed that is lower than the reference speed in a clockwise / counterclockwise direction. Such a movement of the drum drive can be defined as a "swing motion".

The structure of the friction movement can be achieved when the friction between the laundry and the drum increases. For example, if a drum rotating at a reference speed or higher in a clockwise direction is suddenly braked and then rotated in a counterclockwise direction, the laundry rolls along the inner circumference of the drum from a predetermined high point of the drum. Such a motion of the drum drive can be defined as a “rubbing motion”.

Compression and filtration motion patterns can be obtained if washing water is supplied by rotating the drum at a reference speed or higher. When the drum rotates at a relatively high speed, the laundry can be deployed or distributed and held along the surface of the inner circumference of the drum, and then the washing water sprayed inside the drum flows through the laundry, after which the laundry can be wrung out to improve the rinse effect. Such a motion of the drum drive can be defined as a “filtration motion”.

Various movements of the drum drive, designed to achieve the above-described various patterns of movements of the laundry will be described with reference to the drawings.

In FIG. 3 shows a diagram of various motions of a drum drive in accordance with an embodiment, and is described generally herein.

In FIG. 3 (a) shows a rolling motion pattern. When the rolling movement, the engine 140 continuously rotates the drum 130 in a predetermined direction, and the laundry placed on the surface of the inner circumference of the drum rotating along the direction of rotation of the drum falls from a position at an angle of approximately less than 90 ° relative to the rotation of the drum in the drum to the lowest point of the drum .

Thus, since the engine 140 rotates the drum at a speed that is lower than the reference rotation speed (tilting rotation speed), for example, at about 40 rpm, the laundry placed at the lowest point of the drum 130 rises to a predetermined height along the direction of rotation of the drum 130, and then the laundry moves in a rolling motion to the lowest point of the drum from a position less than 90 ° with respect to the direction of rotation of the drum from the bottom of the drum. Visually, in the case when the drum rotates in a clockwise direction, the laundry continuously rolls in the third quadrant of the drum.

The laundry is washed using maximum friction with water for washing and maximum friction with other items of washing, and maximum friction with the surface of the inner circumference of the drum during rolling movement. Such a rolling motion allows a sufficient turnover of the laundry to generate a washing effect such as soft massaging. The number of rpm of the drum during movement of the drum drive can be determined based on the relationship with the radius of the drum. Thus, the greater the rpm of the drum, the greater the centrifugal force generated in the laundry inside the drum. The difference between the value of the centrifugal force and the force of gravity acting on the laundry items in the drum determines the point at which the laundry falls and the corresponding movement of the laundry in the drum. And the rotation force of the drum and the friction between the drum and the laundry can also be taken into account. Thus, the number of rpm of the drum during rolling movement can be determined so as to ensure that the generated centrifugal force and friction force are less than gravity (1G).

In FIG. 3 (b) shows a tipping motion diagram. With the tipping movement, the engine 140 constantly rotates the drum 130 in a predetermined direction, and the laundry located on the surface of the inner circumference of the drum falls from a position of approximately 90 ° to 110 ° relative to the direction of rotation of the drum to the lowest point of the drum. If the drum is controlled so that it rotates at the correct rpm in a predetermined direction, a mechanical force can be generated between the laundry and the drum during the tipping movement. In this regard, the tipping movement can be used when washing and rinsing.

Thus, the laundry loaded in the drum 130 is placed at the lowest point of the drum 130 before starting the engine 140. When the engine 140 transmits torque to the drum 130, the drum 130 rotates, and the lift 135 provided on the surface of the inner circumference of the drum lifts the laundry by set height from the lowest point of the drum. If the engine 140 rotates the drum 130 at a reference rotational speed of, for example, approximately 46 rpm, the laundry may be raised to a position of approximately 90 ° to 110 ° relative to the direction of rotation of the drum and then fall to the lowest point of the drum. During the tipping movement, the number of rpm of the drum can be determined in such a way as to ensure the generation of centrifugal force, which is greater than the centrifugal force generated by the rolling movement, and which is less than the force of gravity.

Visually, if the drum rotates in a clockwise direction while tipping, the laundry rises in sequence to the third quadrant and part of the second quadrant from the lowest point of the drum. After that, the laundry falls to the lowest point of the drum. As a result, the tipping movement makes it possible to wash the laundry as a result of the shock generated by the friction with washing water and the impact of the fall. In this regard, during the tipping movement, a mechanical force greater than the mechanical force during the rolling movement can be used to carry out washing and rinsing. In addition, the rolling movement can be effective in separating tangled laundry and evenly distributing the laundry.

In FIG. 3 (c) shows a step motion pattern. In stepwise motion, the engine 140 rotates the drum 130 in a predetermined direction, and the laundry placed on the surface of the inner circumference of the drum is controlled so that it falls to the lowest point of the drum from the highest point (approximately 180 °) relative to the direction of rotation of the drum. When the motor 140 rotates the drum 130 at a speed that is higher than the reference rotational speed (tilting rotation speed), for example, about 60 rpm or more, the laundry can rotate by centrifugal force without falling until it reaches the highest point of the drum . During step-by-step motion, the drum rotates at a predetermined speed so that the laundry does not fall, and then brakes sharply to ensure maximum impact applied to the laundry when it falls.

After the drum 130 is rotated at a predetermined speed at which the laundry does not fall (approximately 60 rpm or more) until the laundry reaches a position close to the highest point of the drum, the engine 140 supplies reverse torque to the drum 130, when the laundry is located near the highest point of the drum (180 ° relative to the direction of rotation of the drum). Thus, the laundry rises from the lowest point of the drum 130 along the direction of rotation of the drum, the drum momentarily stops when reverse motor torque is applied, and the laundry falls from the highest point to the lowest point of the drum 130. The step motion allows washing the laundry under impact generated when the laundry stops with a maximum height difference. The mechanical force generated by such a step motion is greater than the mechanical force generated by the rolling motion or tipping motion mentioned above.

Visually, when walking in steps, after moving from the lowest to the highest point of the drum, during rotation of the drum, the falling distance inside the drum is the largest during walking, and the mechanical force of the walking movement can be effectively applied to a small amount of laundry. The engine 140 may be braked by the reverse phase during the stepping motion using the torque generated in the opposite direction with respect to the direction of rotation of the engine. The phase of the current supplied to the motor can be reversed to generate reverse torque in the direction opposite to the direction of rotation of the motor, and braking by reversing the phase enables the application of sudden braking. Phase reversal braking can be used to apply a strong blow to the laundry.

Thus, after applying a torque to rotate the drum in a clockwise direction, torque is applied to rotate the drum in a counterclockwise direction, and the drum is subjected to sharp braking. After that, a torque is applied to the drum for rotation in a clockwise direction, and at the same time, a step motion is embodied. The step motion can be used to wash the laundry, using friction between the water drawn through the through hole 131 formed in the drum and the laundry, and using the shock generated during the falling of the laundry when the laundry reaches the highest point of the drum. Such a step motion can generate a washing effect as a result of the impact of the laundry.

In FIG. 3 (d) shows a swing motion pattern. With the swing movement, the engine 140 rotates the drum 130 in a clockwise and counterclockwise direction, and the laundry falls in a position approximately less than 90 ° with respect to the direction of rotation of the drum. Thus, after the engine 140 rotates the drum 130 at a speed that is lower than the reference rotational speed (tilting speed), for example, at about 40 rpm in the counterclockwise direction, the laundry located at the lowest point the drum 130 rises to a predetermined height along a counterclockwise direction. Before the laundry reaches a position of approximately 90 ° relative to the counterclockwise direction of the drum, the engine stops the rotation of the drum, and the laundry falls to the lowest point of the drum from approximately less than 90 ° relative to the counterclockwise direction of the drum.

Therefore, the engine 140 rotates the drum 130 at a speed that is lower than the reference rotation speed (tilting rotation speed), for example, approximately 40 rpm in a clockwise direction, for lifting the laundry to a predetermined height in a clockwise direction along the direction drum rotation. Before the laundry reaches a position of approximately 90 ° relative to the counterclockwise direction of the drum, the engine stops the rotation of the drum, and the laundry falls to the lowest point of the drum from a position less than 90 ° relative to the clockwise direction of the drum.

Thus, the swing movement is a movement in which rotation and stop relative to the first direction and rotation and stop relative to the second (opposite) direction can be repeated. Visually, the laundry that rises to part of the second quadrant from the third quadrant of the drum gently falls, and re-rises to part of the first quadrant of the fourth quadrant of the drum and gently falls with repeated repetition.

In some embodiments, the engine 140 may use rheostatic braking, and the load is connected to the engine 140 so that the mechanical wear of the engine 140 can be reduced, and the impact applied to the laundry can be controlled. Using rheostatic braking, if the current supplied to the motor is turned off, the motor functions as a generator due to inertia of rotation, and the direction of the current flowing through the motor winding will be reversed before turning off the power, and the force (right hand rule) applied along a direction that interferes with the rotation of the engine to brake the engine. Unlike phase reversal braking, rheostatic braking does not generate sudden braking, but instead gently changes the direction of rotation of the drum. As a result, the laundry can be moved in the form of the number 8 through the third and fourth quadrants of the drum in a swing motion. The swing movement can generate laundry in the form of a swing.

In FIG. 3 (e) shows a flow pattern of grinding. With the rubbing movement, the engine 140 rotates the drum 130, both in a clockwise direction and in a counterclockwise direction, and the laundry may fall from a position greater than 90 ° with respect to the direction of rotation of the drum.

Thus, when the engine 140 rotates the drum 130 at a speed that is higher than the reference rotation speed (tilting rotation speed), for example, about 60 rpm or higher in the counterclockwise direction, the laundry located at the lowest point of the drum 130 rises to a predetermined height counterclockwise. After the laundry has reached a position of approximately 90 ° with respect to the counterclockwise direction of the drum, the engine applies reverse torque to the drum to temporarily stop the drum, and the laundry located on the surface of the inner circumference of the drum can quickly fall, resulting, in particular, the laundry located on the surface of the inner circumference of the drum falls to the bottom of the drum from a position of 90 ° or more relative to the clockwise direction of the drum. Thus, laundry can quickly fall from a given height when rubbing. The engine 140 may use reverse phase braking to brake the drum.

With the rubbing movement, the direction of rotation of the drum changes rapidly, and the laundry may not separate from the surface of the inner circumference of the drum for a long period of time. In this regard, the effect of washing with "strong rubbing" with maximum friction between the laundry and the drum can be achieved during movement with rubbing. When rubbing, the laundry moving in the part of the second quadrant through the third quadrant quickly falls and is reset, after moving again in the part of the first quadrant through the fourth quadrant. As a result, visually, during the rubbing movement, the lifted laundry repeatedly falls along the surface of the inner circumference of the drum.

In FIG. 3 (f) shows a flow pattern of filtration. As the filtration moves, the engine 140 rotates the drum 130 so that the laundry does not fall from the surface of the inner circumference of the drum, and washing water is sprayed into the drum. Thus, while filtering is moving, the laundry is distributed along and held in tight contact with the surface of the inner circumference of the drum, the washing water is sprayed into the drum. Water is discharged from the tank through the through holes 131 in the drum under the influence of centrifugal force. Since the filtration movement distributes / expands the surface area of the laundry and allows water to pass through the laundry, washing water can be supplied to the laundry evenly.

In FIG. 3 (g) shows a compression motion diagram. During the compression movement, the engine 140 rotates the drum 130 so that the laundry adheres to it / does not fall from the surface of the inner circumference of the drum due to the action of centrifugal force, and then the engine reduces the speed of rotation of the drum 130 to temporarily separate the laundry from the surface of the inner circumference of the drum. This process is repeated, and water is sprayed inside the drum during rotation of the drum. Thus, the drum continuously rotates at a sufficiently high speed so that the laundry does not fall from the surface of the inner circumference of the drum when the filtration is moving. In contrast, with the compression movement, the rotation speed of the drum changes to repeat the rubbing process of the laundry and to separate from the surface of the inner circumference of the drum 130.

Spraying the washing water in the drum 130 during the filtration movement and the compression movement can be implemented, for example, using a circulation channel and a pump. The pump may be connected to the bottom surface of the tank 120, and the end of the circulation channel is connected to the pump so that washing water is sprayed from the tank into the drum through the other end of the circulation channel.

In alternative embodiments, washing water may be sprayed inside the drum through a supply channel connected to an external water supply source that is located outside of the housing. Thus, one end of the feed channel is connected to an external supply source, and the other end is connected to the tank. If a nozzle for spraying washing water inside the drum is provided, the washing water may be sprayed inside the drum during one or both of the filtration and compression movements.

In FIG. 4 shows in more detail a step motion pattern.

First of all, the laundry moves from the lowest point to the highest point of the drum 130, as shown in FIG. 4 (a) - (c). As described with respect to the tub 120 fixedly adjacent to the drum 130, the laundry received in the drum 130 is moved from a position near the lowest point of the tub 120 to the highest point of the tub 120. For such movement of the laundry, the engine 140 applies a rotational force, namely , torque to the drum in a predetermined direction, which is a clockwise direction, as shown in the drawings, and the drum 130 rotates along a predetermined direction along with the laundry to lift the laundry.

The laundry can rotate with the drum in close contact with the inner surface of the drum 130, under the action of friction, with the help of lifts and on the surface of the inner circumference of the drum 130. The laundry rises to the highest point of the drum 130 without separation from the drum 130 as a result of rotation of the drum 130 s at a frequency of approximately 60 rpm or higher, since this rotation speed generates a predetermined centrifugal force sufficient to prevent separation of the laundry from the drum 130, up to the highest point of the drum 130.

The rotation speed of the drum can be changed so that the generated centrifugal force is greater than the force of gravity, which allows the laundry to rotate together with the drum from the lowest point of the drum 130, which is a predetermined point on the inner surface of the drum located next to the lowest point of the tank 120, to the highest point of the tank 120. The laundry falls from the highest point of the drum 130 to the lowest point of the drum 130 when the drum 130 is suddenly braked, either at the moment or immediately before the moment when it is white fie reaches the highest point of the drum 130.

In particular, for abrupt braking of the drum 130, the engine 140 transmits reverse torque to the drum 130. Reverse torque is generated by phase reversal braking performed to apply reverse phase current to the motor 140, as described with reference to FIG. 3 (c). Phase reversal braking is a certain type of engine braking using torque generated in the opposite direction with respect to the direction of rotation of the motor. The phase of the current supplied to the engine can be reversed to generate reverse torque in the direction of reverse rotation of the engine, and phase reversal braking provides the possibility of a sharp braking applied to the engine. For example, as shown in the drawing, current is supplied to the engine to rotate the drum in a clockwise direction, and then abruptly, current is supplied to the engine to rotate the drum in a counterclockwise direction.

The moment of braking with phase reversal relative to the engine 140 may be closely related to the location of the laundry inside the drum 130. In this regard, a device used to determine or predict the location of the laundry, and a sensor device such as, for example, a Hall effect sensor configured to determine the angle of rotation of the rotor may be an example of such a device. The control part can determine the angle of rotation of the drum using a sensitive device, and can control the engine 140 for braking with phase reversal, at the moment or immediately before the drum is rotated by an angle of rotation of 180 °. As a result, the drum turning in the clockwise direction will be quickly stopped in response to the torque supplied in the counterclockwise direction. The centrifugal force applied to the laundry will be eliminated, and then the laundry will drop to the lowest point.

Therefore, as shown in FIG. 4 (d), the drum 130 continuously rotates in a clockwise direction, and the rotation / falling of the laundry is repeated. Although in FIG. 4 shows that the drum rotates in a clockwise direction, the drum can rotate in a counterclockwise direction to perform a step motion. The step motion generates a relatively large load on the engine 140, and the total effect ratio of the step motion can be reduced.

The total exposure ratio is the ratio of the drive time of the engine to the total value of the drive time and the stop time of the engine 140. If the total exposure ratio is "one", this means that the drive is driven without stop time. Step motion can be implemented at approximately 70% of the total exposure ratio, taking into account the load on the engine. For example, a motor can be stopped 3 seconds after a drive for 10 seconds. Other drive / stop time ratios may also be appropriate.

Before the falling laundry reaches the lowest point of the drum, that is, while the laundry falls, the drum 130 starts its rotation to perform the next step motion. In this case, the drum 130 is rotated by a predetermined angle and after that the laundry reaches the lowest point of the drum 130. From this point, the laundry and the drum can rotate together. Although the drum is rotated 180 °, according to the settings, the laundry cannot be rotated 180 °, that is, to the highest point of the drum 130, and it cannot be reset from the highest point to achieve the desired washing ability.

In this regard, the drum 130 is controlled to rotate repeatedly, as shown in FIG. 4 (d) after the laundry reaches the lowest point of the drum. Thus, the drum remains stationary until the laundry reaches the lowest point of the drum. More specifically, at the moment when the laundry actually begins to fall, a stop of the drum 130 is generated. From the point in time of the fall to the point where the laundry reaches the lowest point of the drum, the drum remains stopped and does not rotate. The stopping time may be longer than the actual time required for the laundry to fall at the lowest point (point 1) from the highest point of the drum. As a result, the drum may remain stopped, for example, for 0.4 seconds, or in some embodiments, for 0.6 seconds, to provide sufficient time in a stopped state. This allows a more accurate embodiment of the step motion to generate maximum impact, and the required washing ability can be achieved, respectively.

In FIG. 5 shows in more detail a rubbing motion diagram.

Initially, the laundry is moved from the lowest point of the drum 130 to a position reached after 90 ° or more clockwise rotation of the drum 130, as shown in FIG. 5 (a) - (c). As described with reference to the tub 120, which is fixedly mounted adjacent to the drum 130, the laundry inside the drum 130 is moved from a predetermined point on the inner surface of the drum located near the lowest point of the tub 120 to a point on the inner surface of the drum rotated 90 ° or more along clockwise directions of the drum 120. To generate such a movement of the laundry, the engine applies a rotational force, that is, a torque, to the drum 130 in a predetermined direction (in a clockwise direction), and then the drum 130 rotates together with the laundry to lift the laundry.

The laundry is rotated together with the drum in close contact with the surface of the inner circumference of the drum 130 by means of a hoist and due to friction with the surface of the inner circumference of the drum, it does not separate from the drum 130. To this end, the drum rotates at a speed of approximately 60 rpm or higher to generate sufficient centrifugal force so that the laundry is not separated from the drum 130. The rotation speed of the drum can be set to generate a centrifugal force greater than gravity, given the size Araban, such as the inner diameter. As a result, the laundry rotates with the drum from the lowest point of the drum to a position of 90 ° or more rotation relative to the lowest point of the drum.

The laundry is then dropped from a 90 ° or more rotation to the lowest point. For such dropping, the drum 130 is sharply braked when the laundry reaches a position of 90 ° or more than the rotation of the drum. An engine 140 applies reverse torque to the drum 130 to apply sudden braking to the drum. As mentioned above with reference to FIG. 3 (e), the reverse torque is the reverse torque generated as a result of phase reversal braking configured to supply reverse phase currents to the motor 140.

The control part can determine the angle of rotation using a sensitive device, as described above. After the rotation angle of the drum is 90 ° or more, the control part can control the engine 140 to slow it down by reversing the phase. As a result, a torque in a counterclockwise direction is applied to the drum 130 rotating in a clockwise direction to instantly stop rotation and eliminate the centrifugal force exerted on the laundry. As shown in FIG. 5 (c), the laundry cannot fall perpendicularly under the action of torque in a counterclockwise direction, but can fall at the lowest point of the drum at an angle to the surface of the inner circumference of the drum. Due to such a fall at an angle, the laundry can receive a relatively large amount of friction against the inner surface of the drum in the middle of the fall, while the friction between the laundry and between the laundry and the washing water can be relatively large.

Therefore, as shown in FIG. 5 (d), the drum 130 continuously rotates in a counterclockwise direction, and the rotation / reset of the above laundry can be repeated. In FIG. 5 shows that the drum used to rotate in a clockwise direction, but previously counterclockwise rotation could be implemented. The rubbing motion generates a relatively large load applied to the engine 140, as well as the step motion, and the total impact ratio during the rubbing motion can be reduced, for example, by stopping for 3 seconds, after which the rubbing motion can be repeated, and the total ratio the effects of the grinding movement can be controlled so that it is 70%. Other arrangements may also be appropriate.

Before the laundry falls to the lowest point of the drum, that is, while the laundry is being dumped, the drum 130 starts its rotation in the opposite direction to execute the movement of the next step motion. In this case, the drum 130 is rotated by a predetermined angle, after which the laundry reaches the lowest point of the drum 130. From this point, the laundry and the drum can rotate together. Although the drum rotates 90 °, in accordance with its settings, the laundry cannot rotate 90 °, that is, to the highest point of the drum 130, and cannot be reset from the highest point to obtain the desired washing ability.

In this regard, the drum 130 is repeatedly rotated, as shown in FIG. 5 (d) after the laundry reaches the lowest point of the drum. In this way, the drum is controlled by holding it stationary until the laundry reaches the lowest point of the drum. More specifically, at the moment when the laundry actually begins to fall, a stop of the drum 130 is generated. From the time at which the laundry is dumped until the time when the laundry reaches the lowest point of the drum, the drum remains in a stopped state and does not rotate. The period of time of the drum stop state may be longer than the actual time required to reset the laundry to the lowest point of the drum. As a result, the stop state maintained by the drum can be set, for example, by 0.2 seconds, which is less than the stop state of the drum during step motion.

When such a stop state is maintained supported by the drum, the step motion can be implemented more accurately to generate maximum friction between the inner surface of the drum and the laundry, maximum friction between the laundry and maximum friction between the laundry and the washing water, and accordingly, the desired washing ability.

In FIG. 6 is a graph comparing the washing ability and the vibration level for each movement shown in FIG. 3. The washing ability is represented on the horizontal axis so that easier separation of the contaminants contained in the laundry is presented to the left. The vertical axis represents vibration or noise level, with reaching higher levels in the upward direction, reducing the time for washing the same laundry.

The step motion and the rubbing motion is suitable for washing programs embodied to reduce the washing time when the laundry is heavily soiled. The stepping and rubbing movements have a high level of vibration / noise and are usually not used to wash sensitive fabrics and / or to minimize noise and vibration.

The rolling movement has a good washing ability and low vibration, while minimizing damage to the laundry and at low engine load. As a result, the rolling movement can be used in all programs for washing, especially in order to help dissolve the detergent at the initial stage of washing and to moisten the laundry.

The tipping movement has a lower washing ability than the rubbing movement and an average level of vibration compared to the rubbing movement and the rolling movement. The rolling movement has a lower vibration level, but requires a longer washing time than the tipping movement. In this regard, the tipping movement may be applicable to all washing programs and may be effective in a washing program with a uniform distribution of linen.

The compression movement has a washing ability similar to the tipping movement and a higher level of vibration than the tipping movement. The compression movement repeats the process of pulling the laundry in the direction of the surface of the inner circumference of the drum and separating the laundry from it. In this process, washing water is discharged outside the drum after passing it through the laundry. Thus, the compression movement can be used to rinse.

The filtration movement has a lower washing ability than the compression movement, and a similar rolling noise level. During the filtration movement, water flows through the laundry and is thrown out of the drum, while the laundry is in close contact with the surface of the inner circumference of the drum. As a result, the filtration movement can be applied to a program designed to wet clothes.

The swing movement has the lowest vibration and washing ability, and it can be used in the washing program with low noise and low vibration and in the program for washing sensitive or delicate objects.

As mentioned above, each movement of the drum drive has its own advantages, and it is preferred that these various movements of the drum drive be used to provide maximum benefits. Each movement of the drum drive may also have advantages and disadvantages given the amount of laundry. Even in the case of the same program and cycle, different movements of the drum drive can be applied in different ways, depending on the amount of laundry.

The inside of the drum in the drum type washing machine can be seen externally through the door. Various movements of the drum drive may be embodied in a washing program, which will be described below. As a result, the user can view various movements of the drum drive performed inside the drum. Thus, the soft type of washing strokes (tipping motion), the type of strong washing strokes (step motion), the type of soft rubbing during washing (rolling motion), and the type of strong rubbing during washing (rubbing motion) can be visually identified. In this regard, the user may feel that the washing is doing well, which may lead to improved user satisfaction in addition to the substantially improved washing efficiency.

III. WASHING MACHINE PROGRAMS

Various control methods, that is, various washing machine programs embodied and broadly described herein, will be presented below.

A. PROGRAM A (STANDARD PROGRAM)

Program A will be described with reference to FIG. 7. Program A is a standard program that can be used to wash normal laundry, without any auxiliary features. Program A includes a wash cycle, a rinse cycle and a spin cycle. The user can select a standard program from part 117 (S710) of the program selection.

A.1 Wash cycle (S730)

The washing cycle includes a water supplying step (S733), in which washing water and washing agent are supplied to a tub 120 or a drum 130 for dissolving the washing agent in the washing water, and the washing step (S742) is configured to drive a laundry drum . At the water supply stage, water is supplied from an external water supply source to the washing machine, together with the washing means. By improving the efficiency of the water supplying step in preparation for the washing step, the efficiency of the washing cycle can also be achieved, including washing efficiency and reduced washing time.

1.1 Determination (S731) of the amount of linen

As mentioned above, the water supplying step is intended to prepare for the main washing step. As a result, dissolving the detergent, wetting the laundry, and the like, can be performed quickly and completely. However, given the capacity of the drum and the amount of washing water supplied to the drum, the movement of the drum drive can be controlled in accordance with the amount of laundry in the drum in the water supplying step. In this way, a drum drive movement can be selected that allows for more efficient dissolution of the detergent and wetting of the laundry based on the amount of laundry in the drum.

The step of determining the amount of laundry, configured to determine the amount of laundry placed in the drum, may be implemented before the step of supplying water. Based on a certain amount of laundry, the movement of the drum drive can be changed in the water supplying step.

The amount of laundry can be determined by measuring the electric currents used to drive the drum. For example, you can measure the current used to perform a tipping motion. To implement the tipping movement, the control part controls the drum that needs to be rotated with a predetermined number of rpm, for example, 46 rpm. The amount of current required to drive the drum, at such rpm, may be different, depending on the amount of laundry in the drum. Thus, the amount of laundry can be determined based on the amount of current required to drive a specific drum at a certain number of rpm with a certain movement.

If the amount of laundry is relatively large, a sufficient amount of washing water can be supplied to wash the laundry in an initial step, such as a water supplying step, and the washing efficiency can be further improved. The movement of the drum drive can be carried out in different ways, in accordance with the amount of laundry at the stage of water supply and the parameters of the stage of water supply can be determined, respectively.

A.1.2 Water supply (S733)

A.1.2.1 Determination (S734) of the type of detergent

In the initial part of the water supplying step, a step of determining the type of washing means for determining whether the washing means supplied during the initial part in the water supplying step can be a liquid type or a powder type can be performed. This step is implemented to determine the movement of the drum drive or the number of rinsing steps in the rinse cycle to be implemented after the wash cycle. Information regarding the washing cycle and the rinsing cycle can be presented to the user through the display portion 119 when performing the initial operation of the washing machine. In this regard, the step of determining the type of washing means can be implemented at the initial part of the stage of water supply, in particular, to the stage of activating the dissolution of the washing means

A.1.2.2 Activation (S735) of detergent dissolution

As the washing water and the washing agent are supplied in the water supplying step, the step of dissolving the washing agent can be implemented. To improve the efficiency of the washing cycle, the detergent can be more fully and effectively dissolved at the initial part of the water supply stage. As a result, the step of activating the dissolution of the detergent can be implemented in the step of supplying water to activate the dissolution of the detergent.

The movement, namely the movement of the drum drive, to move the laundry inside the drum in order to facilitate the dissolution of the washing means, may be a movement made to supply a large mechanical force to the washing water and the laundry. For example, a step motion made to re-lift the laundry along the rotary drum and to drop the laundry from the surface of the inner circumference of the drum in accordance with the braking applied to the drum may be embodied in the step of dissolving the washing means. Alternatively, the rubbing movement is configured so that the laundry is lifted along with the rotating drum and the laundry is discarded in accordance with the braking and reverse rotation of the drum to re-lift the laundry, instead of being stepped. The step motion and the rubbing motion are movements performed to apply a sharp braking to the rotating drum, to sharply change the direction of movement of the laundry, and to apply a strong blow to the laundry. In addition, the step motion and the rubbing movement are also made so as to apply a strong blow to the water for washing. As a result, great mechanical force is provided at the initial part of the water supplying step in order to facilitate the dissolution of the detergent and to accordingly improve the efficiency of the washing cycle.

In alternative embodiments, the step of activating the dissolution of the detergent may be implemented by repeating a sequential combination of step motion and rubbing motion. In this case, the two types of drum drive movements are repeatedly combined, and the structures of the washing water stream may be more diverse to improve the efficiency of the washing cycle.

At a typical stage of water supply, the drum drive can be driven by a tipping movement, in which the drum rotates continuously in a given direction and at a given speed, for lifting and dropping laundry. However, it was determined that the actual time required to dissolve the detergent in the washing water with the tipping movement may be longer than with one of the step motion or rubbing motion, or a combination thereof. For example, the time to dissolve the detergent when tipping over in the exemplary washing machine may be approximately 15 minutes, while the actual time required to dissolve the detergent in washing water during step-by-step movement or rubbing using the same washing machine may be 9 to 10 minutes. Thus, the step motion or the rubbing motion allows the detergent to dissolve in the washing water more quickly, and the corresponding time of a particular washing program can be reduced.

At the stage of rubbing movement, the laundry is discarded, and a blow when dropped is applied to the laundry, while rotation and stopping of the drum can generate a strong whirlwind in the wash water.

In addition, a circulation step for circulating the washing water contained in the tub and for re-supplying the washing water to the drum may be implemented in the step of activating the dissolution of the detergent. At the circulation stage, washing water contained below the drum is fed into the drum, which further contributes to the dissolution of the detergent and the moistening of the laundry.

In some embodiments, the step of activating the dissolution of the detergent may be implemented, for example, for about 2 minutes, or another period of time, respectively, until the water supply is complete. The water supply can be completed at the stage of activating the dissolution of the detergent, or water can be additionally supplied, since the water level can decrease in the next stage of wetting the laundry. The step of activating the dissolution of the detergent can be implemented for a relatively short time so as not to significantly affect the damage to the fabric of the laundry. As a result, the movement of the drum drive to the step of activating the dissolution of the washing means of each of the above programs can be a rubbing movement, depending on the amount of laundry in the drum.

Thus, the step of activating the dissolution of the detergent can be implemented if a certain amount of laundry is at a predetermined level or lower, since the movements of the drum drive, designed to transmit significant mechanical force, can be more effective with small quantities of linen and, since small quantities of linen can maintain sufficient contact with water for washing. In particular, a small amount of laundry means that the surface area of the laundry to be in contact with the washing water is small, and that dissolution of the detergent and wetting of the laundry can be performed by applying a mechanical force to turn the laundry in a relatively short time. As a result, the step motion or the grinding movement provides improved washing efficiency and, consequently, reduced washing time.

In contrast, if the amount of laundry determined in the step of determining the amount of laundry is a predetermined level or higher, the step of activating the dissolution of the detergent may be skipped. Thus, if the amount of the laundry is relatively large, the mechanical force is insufficient to ensure sufficient contact of the laundry with the washing water, since no washing water is supplied / it is absorbed by the mixed laundry in a sufficient amount.

As a result, if the laundry amount is a predetermined level or higher, the step of activating the dissolution of the detergent is skipped, and the laundry wetting step immediately begins. If the laundry amount is a predetermined level or higher, the laundry can provide better contact with washing water in order to facilitate dissolution of the detergent using the circulation step in the water supplying step.

A.1.2.3 Humidification (S736) of the laundry

The step of sufficiently wetting the laundry with water for washing can be implemented in the step of supplying water, together with the dissolution of the detergent. In the case of a drum-type washing machine, the laundry need not be completely immersed in the washing water, and thus, wetting of the laundry can be performed quickly at the initial stage of the washing cycle. After the step of activating the dissolution of the detergent, the step of activating the wetting of the laundry can be implemented, which helps to wet the laundry. Such a step can be implemented after the step of supplying water in a predetermined amount or until the step of supplying water is completed, to ensure sufficient saturation of the laundry. Alternatively, the step of activating the dissolution of the detergent may be implemented after the end of the water supply. The water level decreases during the wetting step of the laundry, and an additional supply of water can be performed.

The wetting step of the laundry may be partially implemented in the step of activating the dissolution of the detergent, as mentioned above, and the water level may be sufficiently increased to allow collection of washing water inside the drum. In this regard, the step of activating the wetting of the laundry may be implemented after the step of activating the dissolution of the detergent. The movement of the drum drive at the stage of activating the wetting of the laundry can be controlled in different ways compared to the step of activating the dissolution of the detergent. For example, the movement of the drum drive in the laundry wetting activation step may include a rolling movement and / or a filtering movement. In some embodiments, the implementation of the filtering motion and the rolling motion can be implemented sequentially.

The filtration movement is a movement in which the laundry is widely distributed to expand the surface area of the laundry, and thus, the filtration movement can be used to uniformly wet the laundry. The rolling movement is a movement in which the laundry is repeatedly turned over to ensure uniform contact of the wash water under the drum with the laundry, and the rolling movement can also be used to wet the laundry. To use these effects as much as possible, different movements of the drum drive, that is, repeated / sequential embodiment of the filtering and rolling movements in a given order, can provide the maximum effect at the stage of activating laundry wetting.

If the laundry amount is a predetermined level or more, the movement of the drum drive in the laundry wetting activation step may include a filtering movement. Thus, with the filtration movement, the surface area of the laundry expands, and the washing water enters with the filtration movement, and the laundry is distributed evenly, without mixing up, and the washing water enters the laundry evenly. Alternatively, or in addition to the filtration movement, the rollover movement can also be implemented.

If the amount of laundry is less than a predetermined level, motion filtering and / or tipping can be used during the laundry wetting activation step.

The user can select the level of soiling of linen from part 118 of the choice of options, and the total ratio of the impact of the engine can be changed in accordance with this choice. However, the total exposure ratio at the water supply stage cannot be changed in accordance with the selected level of contamination, since the total exposure ratio at the water supply stage is pre-set to optimize the dissolution of the detergent and moisturize the laundry, and since the probability of unnecessary damage to the laundry cannot be ignored. If the total exposure ratio does not decrease, the dissolution of the detergent and the wetting of the laundry cannot be sufficiently implemented.

The step of supplying water in a standard program may include a step of determining the type of detergent, a step of facilitating the dissolution of the detergent, and a step of facilitating wetting of the laundry, as described above. In alternative embodiments, a step for determining the type of detergent, a step for facilitating dissolution of the detergent, or a step for wetting the laundry may be provided regardless of the step of supplying water. In this case, the step of determining the washing means, the step of facilitating the dissolution of the washing means, or the step of wetting the laundry may be implemented after the end of the water supply.

A.1.3 Heating (S740)

The washing cycle includes a washing step. To prepare for washing, a heating step may be implemented between the washing and water supplying steps.

The heating step may be performed to heat the washing water using a heater provided under the tub or to raise the temperature of the washing water or the drum using steam supplied to the inside of the drum. In this regard, the heating step may be embodied or omitted as necessary. Thus, if cold air or water is used to treat the laundry, the heating step may not be implemented. However, if the washing water temperature is preset to be higher than the cold water temperature due to the default temperature associated with the selected program, or if the washing water temperature is selected higher than the cold water temperature from the part 118 of the choice of option, the heating step may be implemented.

The movement of the drum drive during the heating step can be changed in accordance with the amount of laundry. The tipping motion can be implemented in the heating step, regardless of the amount of laundry. However, as noted above, if the laundry amount is a predetermined level or less, the rolling movement may be embodied in the heating step. Thus, in the case where the amount of the laundry is relatively small, the multiple turning of the laundry at the bottom of the drum may be more effective in heating and washing than the distribution of the laundry. Alternatively, with a small amount of laundry during the heating step, a combination of rolling and rolling movements in the drum may be used, and with a large amount of laundry, a tipping motion may be used.

The heating step may include a heating preparation step configured to prepare for heating after the water supplying step. This means that the water supplying step ends after the laundry is wetted. As a result, it becomes possible to more accurately determine the amount of laundry after the water supplying step, since wet laundry cannot be distinguished from dry laundry based on the amount of laundry before wetting the laundry. For example, the number of wet laundry items may be determined to be larger than the actual amount before wetting the laundry. As a result, in certain embodiments, the step of determining the amount of laundry can be implemented more accurately in the heating step, before washing. If the heating step is omitted, the step corresponding to the step of preparing for heating can be implemented to determine the exact amount of laundry. Thus, if the heating step is excluded, the step of determining the exact amount of the laundry can be performed before the washing step after the end of the water supplying step.

A.1.4 Wash (S742)

After the completion of the water supplying step and the heating step described above, a washing step for washing the laundry may be implemented. The movement of the drum drive during the washing step may be a sequential combination of step motion and / or rolling and / or rolling movements, for applying a large mechanical force and moving the laundry in different ways, to improve the washing efficiency.

Alternatively, the movement of the drum drive during the washing step may be a sequential combination of the filtering movement and the tipping movement to continuously supply washing water to the laundry, to improve the washing efficiency generated by the detergent, as well as the washing efficiency generated by the mechanical force applied to the laundry .

As a result, the movement of the drum drive in the washing step can be changed in accordance with the amount of laundry, since the movement of the drum drive, allowing to generate the optimal washing effect, may differ, depending on the amount of laundry. The laundry amount may be the laundry amount determined before the water supplying step or the heating step. In the washing step, the movement of the drum drive can be changed in accordance with the amount of laundry determined after the water supplying step.

If the laundry amount is at a predetermined level or higher, the movement of the drum drive may include a filtering movement and / or a tipping movement. If the washing machine is not equipped with the possibility of circulating washing water, only the tipping movement can be implemented. In the case of a large amount of laundry, washing water can flow evenly to the laundry, and mechanical force can be applied to the laundry at the same time, to improve the washing efficiency.

If the laundry amount is a predetermined level or less, the drum drive movement may include a step motion and / or a rolling movement to improve washing efficiency as the laundry is moved in different structures by applying a mechanical force to the laundry. In some embodiments, the tipping motion may also be embodied with a step motion and / or rolling motion.

As mentioned above, in the standard program, the movement of the drum drive in the water supplying step, in the heating step and in the washing step can be changed, and the efficiency of the washing cycle can be improved, respectively. In addition, the movement of the drum drive in each of the steps can be changed in accordance with the amount of laundry in the drum, and an optimized washing cycle can be performed, respectively.

If the user selects the level of soiling from the selection part 118, the total ratio of the effects of the heating step and the washing step can be changed. If the total exposure ratio is unnecessarily high, in the event that the level of contamination is relatively low, the laundry may be unnecessarily damaged.

A.2 Cycle (S750) rinse

The rinse cycle control method of Program A will be described with reference to FIG. 7. In accordance with this embodiment, the rinse cycle may be implemented as part of a single program, together with the washing cycle described above, or it may be implemented independently. For ease of description, a rinse cycle control method performed after the wash cycle mentioned in the standard program will be described below.

A.2.1. First Rinse (S751)

After the washing cycle has been completed, a first rinse step may be performed to supply water and drive the drum to rinse.

One or more spin steps can be performed in a standard program in each of the wash cycle, rinse cycle and spin cycle. For example, spin after a wash cycle and spin in a rinse can be performed. Such spin steps can be called intermediate spin to distinguish them from the spin cycle, which is the last cycle in the standard program.

The degree of extraction can be determined based on the number of rpm of the drum. Typically, the intermediate spin can be implemented at about 200-400 rpm, and, for example, about 400 rpm in the program for sensitive tissues, about 600 rpm in the program of low spin, approximately 800 rpm in the program average spin and approximately 1000 rpm in the high spin program. The number of rpm of the drum for the intermediate spin can be selected based on the low resonant frequency and high resonant frequency during operation, depending on the current operating parameters.

The resonant frequency is the intrinsic physical value of the washing machine, and the vibration of the washing machine increases significantly near the resonant frequency. If the drum rotates near the resonant frequency and the laundry is not evenly distributed, the vibration of the washing machine will increase very sharply. As a result, if the spin cycle is implemented at a predetermined rpm that is higher than the resonant frequency, the laundry unraveling step is usually performed to evenly distribute the laundry inside the drum, and vibration will be felt. If the perceived vibration is less than a predetermined value, the acceleration step can be performed so that it is outside the band of the resonant frequency.

Since the water supply and rinsing are repeated several times in the rinse cycle, the time required for the intermediate spin performed in the middle of the rinse cycle could be longer. To remove the residual amount of detergent remaining after washing, the rinsing steps can be implemented at least three times or more in the rinse cycle. The intermediate spin embodied at this time can significantly increase the rinse cycle time, resulting in an excessively long rinse cycle. According to this embodiment, the intermediate spin rpm embodied in the middle between the water supply and the rinsing can be changed. Thus, the drum can rotate with a given number of rpm, which is lower than the low resonant frequency for a given specific intermediate spin and for a given number of rpm, which is higher than a high resonant frequency for another specified specific intermediate spin.

When a particular intermediate spin is performed with rpm less than the low resonance frequency, the time required for the auxiliary step of unraveling the laundry, the step of determining the magnitude of the vibration, and the step of acceleration may not be required, thus, the time required for the cycle can potentially be reduced. rinse. The number of rpm of such an intermediate spin can be set equal to approximately 100-110. In contrast, if a particular intermediate spin is embodied with a rpm less than the low resonant frequency, the time required for the rinse cycle can be reduced, but the washing water including the detergent may not be completely removed.

Most of the contaminants and residues of the detergent can be found in the wash water after the wash cycle. In this regard, the washing water can be removed from the laundry as thoroughly as possible after the washing cycle.

Spin (S752) at high speed can be performed at the initial stage of the first rinse after the wash cycle in the standard program. When spinning at high speed, the drum can rotate at a higher rpm than the high resonance frequency so that the maximum amount of water can be removed from the laundry. For example, rpm can be set to approximately 1000 rpm. At the high speed spin step, the drum can continuously rotate at high speed, i.e., approximately 1000 rpm, regardless of the user's choice, so that the remnants of the washing agent can be removed as thoroughly as possible before rinsing.

After spinning at high speed, the first step (S753) of the drum drive can be implemented to drive the drum after water is supplied to rinse the laundry. The rinse water level can be a relatively high level, which allows you to see the water level through the door so that the laundry is immersed in the wash water. Thus, a substantial amount of washing water can be supplied to rinse the laundry at the initial stage of the rinse cycle.

The movement of the drum drive in the first stage of the drum drive may be a rubbing motion and / or a swing motion, for the movement of the maximum amount of laundry immersed in the wash water, to improve the rinse characteristics. Such rubbing and swinging movements correspond to the process of continuously rubbing manually the laundry in the wash water after the laundry is immersed in the wash water. The tipping movement in the drum and the step movements correspond to the process of the repeated movement of the laundry into and out of the wash water. As a result, the first stage of the drum drive allows you to control the drum, the drive of which you want to carry out with the movement of grinding and / or rocking, at a high water level, which allows the user to visually observe that the rinsing has been performed to a sufficient degree. In alternative embodiments, a circulation step performed to circulate the washing water contained in the tub to the drum may be embodied in a first stage of driving the drum. The washing water is sprayed inside the drum to rinse the laundry. This process may be called "spray rinse." It is also displayed to the user, as it can be seen through the door that a sufficient degree of rinsing has been performed.

After the first stage of the drum drive is completed, the first stage (S754) of draining and intermediate spinning can be implemented. During the discharge of water, the drum may be driven in a step motion and / or tipping motion. The laundry is lifted and dropped to improve the washing efficiency, and bubbles are formed which improve the rinsing efficiency. The movement of the drum drive can be changed according to the amount of laundry. In the case of a small amount of linen, the drum drive is carried out with a step motion to generate the maximum distance between the rise and discharge. In the case of a large amount of laundry, the drum drive can be performed with a tipping movement.

The intermediate spin may be embodied at a speed of approximately 100-110 rpm during the first discharge and intermediate spin. Then, the unraveling step of the laundry, the step of determining vibration and the step of acceleration can be eliminated, and the required time can be significantly reduced.

In alternative embodiments, during the first drain and intermediate spin steps in the standard program, the intermediate spin can be performed at a frequency of approximately 400 rpm, which is higher than the low resonant frequency. In this case, a step motion and / or a tipping motion may be implemented during the discharge of water when the laundry is sufficiently distributed. In this regard, the step of unraveling the laundry may be omitted. Even at a rotation speed higher than the low resonant frequency, the intermediate spin may be embodied for a short time, with a vibration detection step and a single acceleration step. Such an intermediate spin may be implemented at a relatively high rpm to remove residual detergent and contaminants that were not removed at the high speed spin stage. However, in the case where the magnitude of the vibrations measured in the vibration determination step is outside the allowable range, the vibration determination step may be repeated so that it is not possible to go to the acceleration step, and the rinsing time may be increased, which is a disadvantage. In this regard, the vibration determination step may be implemented at a drum rotation speed of approximately 100-110 rpm, and in the event that the acceleration step cannot be started within the specified time instants of the vibration stage, the first drain and the intermediate spin step to be finished.

A.2.2 Second rinse (S756) and last rinse (S760)

The second rinse step (S756) may follow the first rinse step. The second rinse step may include a step (S757) of a second drum drive and a step (S758) of a second drain and intermediate spin. The second drum drive step may be substantially the same as the first drum drive step described above. In addition, the second drain and intermediate spin step may be substantially the same as the first drain and intermediate spin step. However, the intermediate spin is embodied at a speed of approximately 100-110 rpm at the second drain and intermediate rinse stage, in order to reduce the rinse time, since the remnants of the washing means have already been removed at the high-speed spin stage, at the first drain and intermediate rinse stage.

In the rinse cycle, the result of determining the type of detergent in the determination step can be used.

If the detergent was a liquid type detergent, a relatively small amount of the detergent may remain, and the second rinse step may be omitted to reduce the time required for the rinse cycle. If the detergent is a powder type, the first rinse and the second rinse can be performed by default.

If the detergent is a liquid type, the third rinse step (S760) can be used as the final rinse step after the first rinse step. If the detergent is a powder type, the third rinse step may be used as the final rinse step after the second rinse step. However, when the presence of bubbles is determined in the third rinse step (in the case of a powder type detergent), the fourth rinse step may be performed as the final rinse step.

The water level in the final rinse step (S760) may be relatively low. In the case of a washing machine with an inclined type drum having a drum inclined at a predetermined angle, the water level may have a predetermined level sufficient to supply water only in a predetermined rear portion of the inclined drum. Thus, the water level may be such that it is not felt or is invisible from outside the washing machine. However, such a water level is predetermined so as not to form more bubbles in the laundry. Even if bubbles form, these bubbles form in the tank and not in the drum, which prevents their excessive accumulation. As a result, the user can visually identify that no bubbles are formed at the final rinse stage, and satisfaction with the rinse characteristics can be improved.

The third drain step (S762) may be implemented after the third drum drive step (S761) in the final rinse step to implement the spin step. The drum can be converted into a step motion and / or rubbing movement to evenly distribute the laundry in the third draining step.

A.3 Cycle (S770) Spin

The spin cycle control method in the standard program will be described with reference to FIG. 7. The spin cycle can be implemented as part of a standard program, together with a washing cycle and a rinse cycle, or can be implemented as a separate program. For simplicity of description, a spin cycle control method embodied after a washing cycle and a rinse cycle constituting a standard program will be described.

A.3.1 Unraveling (S771) of laundry

The spin cycle may include a laundry unraveling step performed to unravel the laundry by driving a drum to distribute the laundry uniformly. The spin cycle is designed to minimize the vibrations generated when the drum rotates at high speed. If the drum is driven in a step motion and / or rubbing motion in a draining step immediately prior to the spinning step, the laundry is likely to be unraveled to a certain extent due to the step motion and / or rubbing movement, and the time required for the laundry unraveling step may be significantly reduced.

A.3.2 Measurement (S773) of eccentricity

After the laundry unraveling step, the degree of eccentricity during rotation of the drum with a predetermined rpm can be measured, which is lower than the low resonant frequency for a predetermined period of time, by accelerating the drum and determining whether the laundry is evenly distributed inside the drum.

The step of measuring the eccentricity of the spin cycle in a standard program in accordance with another embodiment may be implemented before the step of unraveling the laundry. Unraveling the laundry to a substantial extent could already be performed when the drum drive moves during the rinse cycle. As a result, the spin cycle may begin with an eccentricity measurement step to reduce the spin cycle time. If the measured value of the eccentricity compared with the reference value of the eccentricity is determined to be satisfactory, acceleration can be performed, which will be described below. If the measured degree of eccentricity is unsatisfactory compared to the reference value of the eccentricity, a laundry unraveling step may be performed. The drum may be stepped in the laundry unraveling step in order to facilitate the unraveling of the laundry, and the eccentricity measuring step may be started again after the laundry unraveling step.

A.3.3 Acceleration and normal spin (S775)

After the step of measuring the eccentricity, the step of accelerating the rotation of the drum to the number of rpm of normal spin may be performed (acceleration step). After that, the normal spin step can be performed, in which the drum rotates with the number of rpm of normal spin to end the spin cycle. The normal spin speed of the drum can be set to a default value of approximately 1000 rpm. Thus, the amount of moisture contained in the laundry can be reduced, as much as possible, to minimize the remnants of the detergent. The number of rpm during normal spinning can vary according to the user's choice, since the number of rpm of normal spinning is associated with the residual moisture level and the degree of creasing of the laundry after the end of the spin cycle. As a result, the user can select the number of rpm of the normal spin phase in accordance with the moisture level and the degree of wrinkling in the laundry.

B. PROGRAM B (PROGRAM FOR HEAVYLY CONTAMINATED LINEN)

The heavily soiled laundry program B, in which a large amount of dirt needs to be removed from the laundry, will be described with reference to FIG. 8. The program for heavily soiled laundry can be selected in part 117 (S810) of the program selection.

B.1 Wash cycle (S830)

B.1.1 Determination (S831) of the laundry amount

After selecting a program for heavily soiled laundry, a step of determining the amount of laundry may be performed to determine the amount of laundry loaded in the drum. The method for determining the amount of laundry may be similar to that described above with respect to the standard program, and thus, a repeated description thereof will be excluded, respectively. The step of determining the amount of laundry may be performed before the step of selecting a program.

The control part compares the laundry amount determined in the laundry amount determination step with the reference value, and controls the movements of the drum drive in the water supplying step and the washing step, which will be described later, based on the comparison result. Essentially, a certain amount of laundry, greater than the reference value, can be considered as a large load, and a certain amount of linen less than the reference value, can be considered as a small load. The movements of the drum drive at each stage in accordance with a certain amount of laundry will be described below.

B.1.2 Water supply (S833)

In the water supplying step, the control part controls the water supplying device (for example, the water supplying channel and the water supplying valve) connected to the water supplying source and the tub for supplying washing water to the tub. If the laundry amount measured in the laundry amount determination step is less than the reference value, the control part can control the drum for driving with the tipping movement and / or the step motion, and / or the rubbing movement, and / or the filtration movement, and / or rolling motion.

Initially, if the laundry loaded in the drum is entangled, an eccentric rotation of the drum will be generated, and the control part can control the drum to drive its tipping movement in the water supplying step to unravel the laundry. With the tipping movement, the drum rotates in a predetermined direction, and the laundry is dropped to the lowest point of the drum from a position of approximately 90 ° or more with respect to the direction of rotation of the drum, so that entangled laundry can become untangled and evenly distributed.

The control part controls the drum to rotate it with a step motion and / or rubbing motion so that a drop impact is applied to the laundry loaded in the drum. Stepping and grinding can be applied to evenly remove insoluble contaminants. As a result, once the drum is stepped and / or rubbed, insoluble contaminants can be removed at the water supply stage, and reduced washing time and improved washing efficiency can be achieved.

In the water supplying step, washing water is supplied to the tub and the laundry loaded in the drum is wetted, as mentioned above. In this regard, the control part may drive the drum in the filtration movement after the step-by-step movement and / or the rubbing movement to perform wetting of the laundry.

In addition, the control part may drive the drum in a rolling motion to dissolve the detergent in the washing water at the water supplying step, in addition to the rolling motion, to moisten the laundry in the washing water, before the water supplying step is completed.

If the laundry amount is greater than the reference value, the control part can control the drum to drive it in the tipping movement and / or the filtering movement, at the stage of water supply. If the amount of laundry is relatively large, in particular, greater than the reference value, a drum movement performed with abrupt braking of the drum, such as a step motion and / or rubbing motion, may apply too much load to the engine. In addition, the initial effect of the step motion and / or the rubbing motion, which is the application of a blow during a fall, cannot be achieved. Thus, the step-by-step movement and / or the grinding motion is not performed if a large amount of laundry is loaded into the drum. In addition, if a large amount of laundry is loaded into the drum, the wetting effect of the laundry generated by the rolling movement having a relatively low rotation speed cannot be effectively achieved, and thus, a tipping movement can be performed instead to wet the laundry. Ultimately, if the laundry amount is greater than the reference value, the drum can be driven in the tipping movement and / or the filtering movement in such a way that the above effects of the distribution of the laundry, removal of insoluble contaminants, wetting of the laundry and dissolution of the detergent can be achieved.

B.1.3 Wash (S835)

After the water supplying step is completed, the washing phase of the heavily soiled laundry program can be started. The program washing step for heavily soiled laundry may include a soaking step, a contaminant removal step, and a remaining contaminant removal step. In this case, washing water having a different temperature can be supplied at each step, and each step can be implemented accordingly.

B.1.3.1 Soaking (S836)

The soaking step is the process of soaking the laundry in cold water, to loosen the strong contaminants contained in the laundry. Relatively cold water, with a temperature of, for example, approximately 15 ° C, is used in the soaking step to loosen the protein components contained in strong contaminants that adhere to the laundry for a long time. If such protein components are in contact with heated water, such strong contaminants tend to cure and firmly adhere to the laundry, and it is difficult to separate them from the laundry. In this regard, the soaking step can be implemented using cold water to prevent strong contaminants containing protein components from being fixed to the laundry.

If the amount of laundry is less than a predetermined value, the engine can drive the drum in stepwise motion. The tipping motion and / or the rolling motion can be added after the stepping motion. Since the stepping movement has excellent washing capabilities and reduced washing time, strong contaminants fixed on the laundry can be loosened and a blow applied to the laundry. As a result, the step motion has an effect including the separation of strong contaminants from the laundry.

If the laundry amount is greater than the reference value, the drum may be driven by the tipping motion and / or the rolling motion in the soaking step. Thus, if the measured amount of laundry is greater than the predetermined reference value, the step motion may not be performed due to the excess load that would be applied to the engine. As noted above, when stepping, a blow is applied as a result of falling laundry inside the drum, to improve the washing efficiency. However, if the amount of laundry is large, a step motion cannot be performed. When the amount of laundry is greater than the reference value, step motion cannot also be performed in the steps of removing the contaminant and removing the residual contaminant, which will be described later.

B.1.3.2 Removal of contaminant (S837)

After the soaking step, the contaminant removal step may begin, performed by heating the wash water in a range of 35 ° C-40 ° C to remove strong contaminants. The temperature of the washing water used in the step of removing the contaminant is set in the range of 35 ° C to 40 ° C, since the fat components contained in strong contaminants can be more easily removed at a temperature that is close to the temperature of the human body. A heater provided on the bottom surface of the tank or moisture supply device, configured to supply heated moisture, such as steam, to the tank, can be used to raise the temperature of the washing water up to a temperature within a predetermined range.

In the step of removing the contaminant, the control part may control the engine to drive the drum into the tipping movement and / or the rolling movement if the amount of laundry is a reference value or less. The tipping movement and / or the rolling movement can apply a small load to the engine and can reduce the washing time, with high washing efficiency. In this regard, a reduced washing time can be achieved.

If the laundry amount is greater than the reference value, the control part can control the drum to drive the tipping motion. In the case of a large amount of laundry, the rolling movement made to roll the drum at a relatively low speed may not be effective in removing contaminants, and thus a tipping movement can be applied.

B.1.3.3 Removal (S838) of the remaining contaminant

The control part may implement the step of removing the remaining contaminant designed to heat the washing water so that it has a temperature of about 60 ° C, and to sterilize and bleach the laundry after the step of removing the contaminant. The temperature of the washing water may be approximately 60 ° C or higher during the step of removing the remaining contaminant to sterilize and bleach the laundry.

At the stage of removing the remaining contaminant, the control part can control the drum, for the drive with a step motion or in order, a step motion and / or a tilting motion and / or a rolling motion if the laundry amount is less than the reference value.

If the laundry amount is greater than the reference value, the control part can control the drum to drive the filtration and / or tipping movement in the step of removing the remaining contaminant.

B.2 Cycle (S850) rinse

The program rinse cycle for heavily soiled laundry can be similar to the standard program rinse cycle described above and the other program rinse cycles, which will be described below. Thus, a repeated description of the rinse cycle is excluded.

B.3. Spin cycle (S870)

The spin cycle in a program for heavily soiled laundry can be similar to the spin cycle of a standard program described above and the spin cycles of other programs, which will be described below. Thus, a repeated description of the spin cycle is excluded.

C. PROGRAM C (RAPID BOILER PROGRAM)

Program C will be described with reference to FIG. 9. Program C can be called a fast boiling program designed to heat washing water to a predetermined temperature for a relatively short time, in order to achieve the effect of sanitary boiling of laundry, such as in a sanitation cycle.

Typically, when sterilizing and bleaching laundry, the washing water contained in the tub is heated to a “predetermined” temperature and then washed. Since the washing time is relatively long and a sufficiently large amount of electricity is consumed to heat only the washing water, considerable time and a large amount of electricity are required to heat the washing water contained in the tank to a predetermined temperature. With a quick boil program, linen can be sterilized and bleached, also with a decrease in the total washing time and energy consumption. A quick boil program heats the wash water supplied to the tub for a predetermined period of time, regardless of the temperature of the wash water, instead of heating the wash water until the wash water reaches a predetermined temperature. Considering the washing possibilities, the time compensation step in the washing step provided for in the quick boiling program, in accordance with the temperature of the washing water, can be included in this washing program, as will be described with reference to FIG. 9.

First, the user can select a quick boiling program from part 117 (S910) of the program selection. Then, the control part performs the step of setting the time of the washing step for the quick boiling program. This step of setting the washing time allows the control part to determine the time required for the washing step for the quick boiling program, which is stored in a storage device, such as a storage device. This step may be implemented simultaneously with the step of selecting a program or the step of supplying water.

C.1 Wash cycle (S930)

C.1.1 Determining the amount of laundry and setting (S931) the washing time

After a user selects a quick boil program, the control part may implement a laundry amount determination step for measuring the laundry amount and a washing time setting step for setting a time required in the washing step in the fast boil program based on the determined laundry amount. The control part may use the actual time required to rotate the drum to a predetermined position to determine the amount of laundry, as described above, or the residual rotation time after rotation of the drum for a predetermined time.

At the step of setting the washing time, the control part may select a washing time corresponding to the measured amount of laundry from the corresponding time values stored in the storage device. The various times required for the washing step in the fast boiling program are stored in a storage device, such as a storage device, so that when a quick boiling program is selected, the required time stored in the storage device can be selected by the control part.

C.1.2 Water supply (S933)

The wash cycle in the quick boil program may include a water supply step for supplying wash water to the tub. In the water supplying step, the control part controls the water supplying device (for example, the water supplying channel and the water supplying valve) connected to the water supplying source and the tank to supply water to the tank. In addition, the control part controls the drum to drive it in a manner similar to driving the drum in the water supplying step, for example, in the heavily soiled laundry program described above, and thus an additional detailed description of the invention will be omitted.

C.1.3 Step (S935) measuring / compensating the water temperature

After supplying water to the tank, the control part measures the temperature of the washing water using the temperature of the temperature sensor provided in the washing machine, and compares the measured temperature with the reference temperature to control the time of the washing step.

For example, the control part can compare the measured temperature of the washing water with a reference temperature, for example, higher than about 50 ° C. If the measured temperature is higher than the reference temperature, for example, if heated water is supplied to the tank, the control part can immediately carry out the washing step. However, if the measured temperature is lower than the reference temperature, the control part may implement the compensation step performed to adjust the time of the washing step.

As noted above, the washing step can be implemented after heating the washing water for a predetermined period of time in this program, regardless of the temperature of the water. In this regard, the temperature of the washing water contained in the tank may be different, depending on the temperature of the water supplied to the tank after the end of the heating step, and there may be differences in the possibility of washing, due to the different temperature of the water. As a result, a compensation step is provided to minimize differences in washing capabilities caused by washing water having a different temperature after the heating step. If the temperature of the washing water is lower than the reference temperature, the time of the washing step is increased to compensate for the possibility of washing at a lower temperature.

Many reference temperatures used to determine the temperature range can be adjusted accordingly. For example, in one embodiment, a single reference temperature may be provided, and in alternative embodiments, a plurality of reference temperatures may be provided. When the temperature of the washing water is higher than the first reference temperature (for example, 50 ° C) and there are three temperature reference values, that is, the first, second and third reference temperatures are provided, the control part can immediately implement the washing step. When the measured temperature of the washing water is lower than the first reference temperature and higher than the second reference temperature, the second reference temperature (e.g. 40 ° C) lower than the first reference temperature (e.g. 50 ° C), and when the measured temperature lower than the second reference temperature and higher than the third reference temperature, the third reference temperature (e.g. 30 ° C) lower than the second reference temperature (e.g. 40 ° C), and when the measured temperature is lower than the third reference temperature, perform the compensation step performed for the computer Setting the time of the washing step previously set at the washing time setting step.

When the time of the washing step is compensated, the control part can control the compensated time differently depending on the temperature of the washing water. The washability is substantially proportional to the temperature of the wash water. In this regard, the lower the measured temperature of the washing water, the longer the compensated time. The reference temperature and the time range added in the compensation step can be pre-set based on the capacity of the washing machine and other such factors.

C.1.4 Heating (S937)

After compensating for the predetermined time of the washing step in the compensation step, a heating step for removing contaminants contained in the laundry as a result of the movement of the drum while heating the washing water can be implemented for a predetermined period of time. The heating step may be embodied as an independent step or as part of a washing step, which will be described later. For ease of description, when describing this program, the heating step will be described as part of the washing step.

C.1.5 Wash (S939)

The movement of the drum drive during the washing step in the fast boiling program may include a step motion and / or a tipping motion and / or a rolling motion.

The step motion has an exceptional washing ability and strikes the laundry in such a way that the contaminants fixed on the laundry can be separated and the washing time can be reduced. As a result, the control part can rotate the drum with step motion at the initial stage of the washing step. In this case, the heating step may be implemented after the step motion of the washing step.

When stepping, the drum rotates at a given speed, which eliminates the drop of laundry from the surface of the inner circumference of the drum, due to the action of centrifugal force. When the laundry is located near the highest point of the drum, reverse torque is applied to the drum. Since the total ratio of the influence of the step motion is regulated, the load applied to the engine will be greater with the step motion than with other movements. In this regard, if the heating step performed to heat the wash water continues during the step-by-step motion, the energy consumption will be increased, and safety problems arise due to an increase in current strength. As a result, the heating step can be implemented for a predetermined time, after the end of the step motion.

The heating step is such that the heater is not turned on for a predetermined period of heating time, and not necessarily until the temperature of the washing water reaches a predetermined value. This allows you to accurately predict the time and energy required for the washing phase, and notifies the user by presenting the forecast data. In addition, the washing step can only be implemented for substantially the same predetermined time, regardless of the temperature of the washing water supplied in the washing step, so that energy consumption and washing time can be reduced.

Therefore, the control part can control the tipping motion and / or the rolling motion, which must be implemented. In this case, the tipping motion and / or the rolling motion can be implemented simultaneously with the start of the heating step. The tipping movement and the rolling movement apply a small load to the engine and have good washing ability, with reduced washing time. As a result, the tipping movement and the rolling movement make it possible to achieve the effect of decreasing the washing time required in the washing step and the effect of the corresponding washing ability, even when the washing step is implemented using washing water having different temperatures.

C.2 Cycle (S950) rinse

The rinse cycle of a quick-boil program can be similar to the rinse cycles of the programs described above and the rinse cycles of other programs, which will be described below. Thus, an additional detailed description of it will be excluded.

C.3 Spin cycle (S970)

The spin cycle of a fast-boiling program can be similar to the cycles of the programs described above and the spin cycles of other programs, which will be described below. Thus, a detailed description thereof is excluded here.

D. PROGRAM D (COLD WASHING PROGRAM)

The cold wash program D will be described with reference to FIG. 10. Program D cold wash is designed to wash clothes without heating the wash water, providing energy savings, without compromising the required washing ability. As a result, in such a program, the temperature of the washing water supplied to the tank is measured, the measured temperature is compared with a predetermined temperature, and the operating parameters are adjusted accordingly to maintain the washing ability. For example, if the temperature of the washing water does not reach the reference temperature based on the result of the comparison, the washing time is sufficiently compensated to provide the target washing ability in the cold wash program.

First, the user can select a cold wash program from part 117 (S1010) of the program selection. After the user selects a cold wash, the control part may perform a wash cycle, a rinse cycle and / or a spin cycle sequentially or selectively.

D.1 Wash Cycle (S1030) (First Embodiment)

D.1. Determining the amount of linen / setting (S1031) washing time

After the user selects the cold wash program, the control part may implement the laundry amount determination step for measuring the laundry amount and the washing time setting step for setting the time required for the washing step for the cold wash program based on the measured laundry amount . In the laundry amount determination step, the control part may use the actual time required to rotate the drum to a predetermined position or the residual rotation time of the drum to measure the amount of laundry, as described above. In the step of setting the washing time, the control part may select a washing time corresponding to the measured amount of the laundry from the corresponding time values stored in the storage device in accordance with the amount of the laundry.

D.1.2 Water supply (S1033)

The wash cycle in a cold wash program may include a water supply step for supplying wash water to the tub. In the water supplying step, the control part controls the water supplying device (for example, the water supplying channel and the water supplying valve) connected to the water supplying source and the tank to supply water to the tank. In addition, the control part controls the drum to drive it with a drum drive movement similar to the movement of the drum drive in the water supplying step in a heavily soiled laundry program, or in a fast boiling program described above. Thus, its further detailed description will be excluded.

D.1.3 Measurement (S1035) of water temperature / wash time compensation

After the washing water is supplied to the tub, the control part can measure the temperature of the washing water using the temperature measuring device provided in the washing machine. The control part can compare the measured temperature with the reference temperature (e.g. 15 ° C). If the measured temperature of the washing water is equal to the reference temperature or higher, the control part may implement the washing step without compensating for the washing time according to the amount of the laundry. If the measured temperature is lower than the reference temperature, the control part may implement the step of compensating the washing time. In this example, a temperature of 15 ° C is presented as an example of a critical temperature that allows for cold washing capabilities and a reference temperature for a cold water wash test. As a result, if the measured temperature of the washing water is less than the reference temperature, the control part can adjust the time of the washing step set in the step of setting the washing time. For example, if the measured temperature is lower than the reference temperature, the control part may add a predetermined time to the washing step to prevent deterioration of the washing ability due to the use of cold washing water having a lower temperature than the reference value. For example, if the measured temperature of the washing water is lower than about 10 ° C, 10 minutes may be added to the time of the washing step in the washing time compensation step. If, for example, the measured temperature is higher than 10 ° C and lower than 15 ° C, 5 minutes can be added to the time of the washing step.

D.1.4 Wash (S1037)

After the time of the washing step has been compensated, the laundry amount measured in the above laundry amount determination step is compared with the reference laundry amount, and a washing step including various movements of the drum drive embodied in accordance with the laundry amount can be performed. The reference value of the amount of laundry can be pre-set based on the amount of linen that allows you to perform a step motion, taking into account the size of the drum and the output of the engine. For example, the reference value of the amount of laundry may be half the value of the washing machine washing capacity (approximately 5 ~ 6 kg in a washing machine having a 1 l kg capacity). A case in which the measured value of the laundry amount is less than the reference value of the laundry amount will be described first, and then a case in which the measured value is the reference value or more will be described.

When the measured value of the laundry amount is less than the reference value of the laundry amount, the control part controls the step motion and / or the tipping motion and / or the rolling motion to be implemented in the washing step. The step motion applies a blow when dropped to the laundry loaded in the drum, and the dirt contained in the laundry can be easily removed, even when using cold water. If the laundry becomes tangled during the washing step, an eccentric rotation of the drum may be generated. Thus, the control part drives the drum with a tipping and / or rolling motion to unravel and distribute entangled laundry.

When the measured value of the laundry amount is equal to the reference value or more, the control part controls the filtering movement and / or the tipping movement, which should be implemented in the washing step. If the laundry amount is a reference value or more, a large load makes it difficult to achieve the effect of applying a blow to the laundry during the step motion and the rolling effect of the laundry along the surface of the inner circumference of the drum during the rolling movement. In this regard, the filtration movement and the tipping movement can be implemented, individually or sequentially, to achieve the effect of providing the possibility of washing and the effect of distribution of linen.

D.1 ′ Wash Cycle (S1130) (Second Embodiment)

In FIG. 11 is a schematic diagram of a cold wash program in accordance with a second embodiment, as outlined herein.

Compared to the cold wash program in accordance with the first embodiment, the cold wash program in accordance with the second embodiment eliminates the step of setting the washing time and the compensation step and, instead, heats the wash water using a heater if the water temperature for washing lower than 15 ° C. Thus, in the washing cycle, in accordance with the second embodiment, the laundry amount is determined (S1131), and the water supplying step (S1133) can be immediately implemented without setting the washing time. After that, the temperature of the washing water is measured (S1135) to implement the washing step (S1137). The movement of the drum drive for the drum can be changed in accordance with the amount of laundry in the washing step, in accordance with the second embodiment, which is similar to the first embodiment described above. The washing step according to the second embodiment may further include a heating step based on the measured temperature of the washing water.

A case in which the amount of laundry measured in the washing step is less than the reference value will be described in which the movement of the drum drive for the drum includes a step motion and / or a tipping motion and / or a rolling motion.

When the measured temperature of the washing water is less than the reference value, a step motion is implemented after the washing step has begun. After the step-by-step movement, a heating step can be applied to heat the washing water using a heater or a moisture supply device provided in the tank. The heating step begins after the step motion, since the step motion places an increased load on the engine, as mentioned above. Thus, safety problems, as well as deterioration in the washing ability, can occur if the heating step and the step motion are carried out simultaneously. In addition, if the heating step is performed before the step motion to eliminate the problems described above, the washing time may be increased, which is undesirable. Thus, in this embodiment, the heating step begins after the end of the step motion.

At the start of the heating step, the control part can sequentially implement the tipping motion and the rolling motion. The tipping movement and the rolling movement do not have any problems associated with a deterioration in the washing ability and safety, and can reduce the washing time even if they are implemented together with the heating step at the same time.

The temperature of the washing water is re-measured after the heating step, and it is determined whether the re-measured temperature has reached the temperature reference value. When the temperature of the washing water reaches the reference temperature, the heating step may end. However, if the temperature of the washing water has not reached the reference temperature, the heating step may continue during the washing step. Thus, even if the temperature of the washing water heated in the heating step does not reach the reference temperature, if the washing step ends, then the heating step also ends.

If the measured temperature is equal to the reference temperature or higher, the control part performs the drum drive with a step motion and / or a tipping motion and / or a rolling motion, essentially the same as when describing the movement of the drum drive in accordance with the first embodiment, and, thus, an additional description thereof will be excluded accordingly.

If the laundry amount is a reference value or more in the washing step, the control part may drive the drum with a filtering movement and / or a tipping movement. At this time, a heating step may be provided if the measured temperature of the washing water is less than the reference temperature. As described above, the drum drive is not carried out with a step motion during the heating step.

D.1 '' Wash Cycle (S1230) (Third Embodiment)

In FIG. 12 is a schematic diagram of a cold wash program in accordance with a third embodiment, as outlined herein.

Compared to the cold wash program according to the first embodiment described above, in the cold wash program according to the third embodiment, hot water is supplied to the tub if the temperature of the washing water supplied in the water supplying step is lower than approximately 15 ° C. Thus, after determining (S1231) the laundry amount, the control part can implement the step of supplying water (S1233) for supplying washing water to the tub based on the determined laundry amount, excluding the washing time setting time and the compensation step.

At the time of the water supplying step, the control part supplies cold water to the tank (1234) and may also implement the step (S1235) of measuring the water temperature while supplying cold water. In this case, when the measured temperature of the washing water is 15 ° C or higher, the washing step (S1240) may be implemented in accordance with the amount of laundry loaded in the drum. If the measured temperature is lower than 15 ° C, the hot water supplying step (S1236) may be implemented.

The water supplying step may continue until the amount of cold water and the amount of hot water supplied in the water supplying step reaches the amount of washing water determined in accordance with the amount of laundry. After the completion of the water supplying step, a washing step may be started, embodied in accordance with the amount of laundry. The movement of the drum drive may vary in accordance with the amount of laundry in the washing step, as well as in the first embodiment described above, and thus its further detailed description is excluded here.

D.2 Cycle (S1050, S1150, S1250) rinse

The rinse cycle in a cold wash program may be similar to the rinse cycles of the programs described above and the rinse cycles of other programs, which will be described below. As a result, a further detailed description thereof is excluded.

D.3 Cycle (S1070, S1170, S1270) Spin

The spin cycle in a cold wash program can be similar to the spin cycles of the programs described above and the spin cycles of other programs, which will be described below. As a result, a further detailed description of it will be excluded.

E. PROGRAM E (COLORED UNDERWEAR PROGRAM)

Program E will be described with reference to FIG. 13. Program E may be called a “Color Laundry Program” designed to more efficiently wash colored items. When colored items are washed, there may be a color migration problem that can generate color transfer between colored items, a fading problem, a spool formation problem, and a pilling problem. The color migration described above is likely to result from increased static friction between the drum and the laundry. This program may include a temperature control step performed to prevent color migration by controlling the temperature of the washing water in the washing step of the colored items, performed to drive the drum so as to prevent the formation of spools and pilling, and a rinse step. Next, these steps will be described in detail.

E.1 Wash Cycle (S1330) (First Embodiment)

E.1.1 Water supply (S1331)

At the water supply stage, the control part controls the cold water that is supplied to the tank. Color migration is more likely to occur at higher temperatures for washing water. At the water supplying stage, the control part can control the engine to drive the drum into a swinging movement or into a filtering movement, or using a combination thereof. A water supplying step may be provided for supplying the washing water required for washing the laundry to the tub and for moistening the laundry loaded into the drum in the washing water. As a result, the drum is driven by filtration in the water supplying step so that the wetting of the laundry can be effectively performed. In addition, the drum may be driven by a swing motion in the water supplying step, instead of a filtration motion. The swing motion can minimize the movement of the laundry inside the drum, compared to other movements, in order to minimize the generation of spools and pilling that may occur due to the friction between the laundry items.

E.1.2 Step (S1333) for measuring water temperature / heating

After the water supplying step is completed, the control part can measure the temperature of the washing water supplied to the tank. When the measured temperature is a reference temperature or higher (for example, 30 ° C or 40 ° C), the control part can immediately start the washing step. When the measured temperature is lower than the reference temperature (for example, cold water, because the washing water supplied in the water supplying step is cold water), the control part may start a heating step to heat the washing water. In some embodiments, the temperature (reference temperature) of the washing water, allowing the washing step to start, can be set to 30 ° C or 40 ° C, since the temperature of the washing water, allowing for maximum washing ability, with minimal color migration, is in range from 30 ° C to 40 ° C.

In the heating step, the washing water supplied to the tank is heated using a heater provided on the bottom surface of the tank or a steam generating device configured to supply steam to the tank.

E.1.3 Wash (S1335)

When the heating step makes it possible to reach the washing water temperature equal to the reference temperature (30 ° C or 40 ° C), the control part may start the washing step. At the washing stage, the control part can control the drum, which is rotated by performing a drum drive movement, which minimizes mechanical friction to prevent spools and pilling, in order to achieve the desired washing ability. For example, the control part may control a drum that is rotated with a swinging motion and / or with a step motion in the washing step in this program. Such a step motion and a swing motion may be embodied sequentially, and such successive embodiments may be repeated.

With the swing movement, the drum rotates in both opposite directions and discards the laundry from a position of approximately 90 ° or less with respect to the direction of rotation of the drum. When the swing movement is applied, rheostatic braking of the engine is applied, since the physical friction applied to the laundry can be reduced as much as possible while maintaining a given level of washing efficiency. As a result, the possibility of formation of spools and pilling, which can be formed as a result of friction between the items of linen or between the linen and the drum, can be minimized.

As mentioned above, during the stepwise movement, the drum rotates at a predetermined speed, which prevents the laundry from falling from the surface of the inner circumference of the drum under the action of centrifugal force, and then the drum is braked sharply to ensure maximum impact applied to the laundry. In this regard, the step motion has an excellent washing ability and is sufficient to compensate for the insufficient washing ability during the swing movement. The time during which the step movement is performed may be shorter than the time during which the swing movement is performed in order to minimize the possibility of spools and pilling.

E.1 'Wash Cycle (S1430) (Second Embodiment)

In FIG. 14 is a schematic diagram of a color laundry program in accordance with a second embodiment. Unlike the program described above, in accordance with the first embodiment, the colored laundry program, in accordance with the second embodiment, provides the step of measuring the water temperature and the heating step in the washing step (S1433) after the water supplying step (S1431). If the step of measuring the water temperature and the heating step are performed before the washing step, the washing time may increase, which is a disadvantage. As a result, in this embodiment, a colored laundry program is presented, allowing to reduce the washing time in comparison with the embodiment described above.

After the water supplying step (S1431), the control part can control the drum, which is driven with a step motion and / or rocking movement in the washing step, and can determine whether the temperature of the washing water is equal to the reference temperature (for example, 30 ° C or 40 ° C), or do it all at the same time. When the temperature of the washing water is equal to the reference temperature or higher, based on the determination result, the control part controls the drum with its permanent drive in accordance with the washing step. When the temperature of the washing water is lower than the reference temperature, the control part may start a heating step for heating the washing water.

The control part may control the drum so as not to perform a stepwise drive during the heating step. Thus, in the heating step, the control part drives the drum with a swing movement, and not with a step motion. The reason why the heating step is not performed together with the step motion at the same time is described in the above programs, and thus its further explanation is excluded.

E.2 Cycle (S1450) rinse

The control part may start the rinse cycle after the end of the wash cycle. The control part can control the drum to drive the filtration during the rinse cycle. The filtration movement rotates the drum at a predetermined speed so that the laundry does not fall from the surface of the inner circumference of the drum under the action of centrifugal force, and then sprays washing water into the drum so that the filtration movement can be used to moisten or rinse the laundry. In addition, the filtration movement may generate slight friction between the laundry and between the laundry and the drum. In this regard, the filtering movement allows you to rinse the laundry in a relatively short time. The control part may perform the tipping movement in the rinse cycle, in order to promote the ability to rinse with the filtering movement.

E.3 Cycle (S1470) Spin

After the rinse, the spin cycle may begin, designed to remove the wash water from the laundry. The spin cycle in the colored laundry program may be similar to the spin cycles of the programs described above and the spin cycles of other programs, which will be described below, and thus further detailed description thereof will be excluded.

F. PROGRAM F (FUNCTIONAL CLOTHING PROGRAM)

Program F will be described with reference to FIG. 15. Program F may be referred to as the “functional clothing program” for washing functional clothes, including outdoor clothes such as mountaineering clothes and other sportswear, effectively without damaging the fabric. Functional clothes are made in such a way as to correspond to outdoor activities such as mountain climbing, swimming, cycling, etc. Functional clothing quickly absorbs sweat and removes absorbed moisture to the outside, which helps maintain body heat. However, such functional clothing is made of thin synthetic fabric and is less durable than other types of fabrics. The washing program for functional clothes can be optimized to match functional clothes.

First, the user can select the functional clothing program from the program selection part 117 (S1510). After the user selects a functional clothing program, the control part may start a washing cycle, a rinse cycle and / or a spin cycle sequentially or selectively.

F.1 Cycle (SI530) wash

F.1.1 Water supply (S1531)

The control part embodies the water supplying step in the washing cycle step. In the water supplying step, the water required for washing the laundry is supplied. In addition, in the water supplying step, the detergent dissolves in the supplied washing water and wets the laundry loaded in the drum.

F.l.1.1 First water supply (S1533)

The water supplying step includes a first water supplying step performed over a predetermined period of time. In a first water supply step, the drum may be driven in a swing motion. As mentioned above, when the rocking movement, the drum rotates in a predetermined direction and in the opposite direction, alternately. After turning 90 ° or less, from the lowest point of the drum in a given direction and in the opposite direction, the laundry may fall. As a result, alternating clockwise / counterclockwise rotation generates a vortex in the wash water, which helps dissolve the detergent. At the same time, the laundry rotated 90 ° or less falls, and a strong blow does not affect the laundry. In this regard, the swing movement at the stage of the first water supply allows you to dissolve the detergent in the washing water, and at the same time, a strong blow does not apply to the functional clothes. The swing motion may be repeated several times over a predetermined period of time.

F.1.1.2 Second water supply (S1535)

After the end of the first water supply, a second water supply can be carried out for a predetermined period of time. At the second water supply, the washing water is continuously supplied, and the filtration movement and the swing movement are successively carried out. The stages of the first and second water supply can be classified in accordance with a given time. The time of each step can be adjusted according to the amount of laundry and other relevant parameters. To this end, a laundry amount determination step made to determine the laundry amount may be provided before the water supplying step.

As mentioned above, the filtration movement rotates the drum at high speed to generate centrifugal force, and the laundry is in close contact with the surface of the inner circumference of the drum under the action of centrifugal force. In addition, washing water flows through the laundry and through the openings of the drum under the influence of centrifugal force and enters the tank. As a result, the laundry is wetted with water for washing during the movement of the filter, for washing. In addition, the washing water simply flows through the laundry, and the functional clothes cannot be damaged during the wetting with the washing water. After performing the filtering movement for a predetermined period of time, a swing movement can be performed. As noted above, the detergent can continuously dissolve, without damaging the functional clothing. The laundry can be effectively wetted in the wash water, as a result of the generated vortex and as a result of elongation, a repeated rotation of the drum in a clockwise / counterclockwise direction is generated during the swing movement. In this regard, tangled linen may unravel before washing. In addition, with the swing movement, the laundry falls from a relatively low position, and damage to the fabric of the laundry can be minimized by unraveling the laundry. As a result, combinations of filtration and rocking movements can effectively minimize damage to functional clothing and provide moisture to the laundry, dissolution of the detergent, and unraveling of the laundry. Such a sequential combination of filtering and sweeping movements can be repeated several times over a given period of time.

F.1.2 Wash (S1540)

After supplying washing water to a predetermined water level, the water supplying step ends, and then the washing step may start. Since functional clothing is relatively light and thin, essentially the same washing step can be performed, regardless of the amount of laundry in the drum.

F.1.2.1. First wash (S1541)

The washing step may include a first washing step performed during a predetermined period of time when the drum is driven in a step motion. As noted above, the stepping movement resets the laundry from its highest position. As a result, the step-by-step movement, at the stage of the first washing, first evenly mixes the laundry and water for washing. In addition, the step motion impregnates the laundry contaminants and applies a blow to the laundry to separate the pollutants from the laundry using a large rotation / discharge of the laundry.

F.1.2.2. The second wash (S1543)

After the first washing step, a second washing step may be performed for a predetermined period of time. In the second washing step, the washing water is heated to wash more efficiently and remove contaminants. Initially, the washing water can be heated using a heater provided on the bottom surface of the tank, or using a steam generating device configured to supply steam to the tank. As such, the washing water can be heated to about 25 ° C to 30 ° C, preferably to about 27 ° C, in the second washing step. Functional clothing is made from a fine-textured synthetic fabric and may be damaged if the temperature of the heated washing water is excessively high. As a result, washing water having an appropriate temperature used in the second washing step can improve the washing efficiency and can prevent tissue damage.

Simultaneously with the heating of the washing water, the drum can be set in swing motion in the second washing step. When the swing movement is used, the laundry is dropped from a relatively low position and the drum rotates alternately. In this regard, the laundry can smoothly swing and move sufficiently in the water for washing. Water for washing during movement can be uniformly heated in a relatively short time, and the heat can be transferred sufficiently to the laundry. In addition, the swing movement can generate a shock under the action of friction between the washing water and the laundry, and a shock when dropped, and can effectively remove contaminants without damaging the fabric.

F.1.2.3. Third wash (S1545)

After the second washing step, a third washing step may be performed for a predetermined period of time. In the third washing step, any remaining contaminants can be removed, and a combination of the swing motion and the step motion can be performed. Although the rocking movement allows you to remove contaminants without damaging the fabric, as noted above, its washing ability is relatively low compared to other movements. As a result, a step motion is added allowing a stronger blow to be applied, and the washing ability of the washing step, mainly consisting of a swing motion for functional clothes, can be improved. In addition, a strong blow during the stepping movement can prevent the fluff from sticking to the laundry. As a result, the third washing step can minimize damage to functional clothes and allows you to completely and effectively separate the contaminants from the laundry.

F.2. Rinse Cycle (S1550)

The rinse cycle of the functional clothing program may be similar to the rinse cycles in programs including the standard program mentioned above and the rinse cycles of other programs, which will be described below, and thus its further detailed description is excluded here.

To enhance the overall rinse ability, the rinse cycle can be repeated more often than the standard rinse cycle. For example, the rinse cycle may be implemented at least three times or more. This is due to the fact that the drum rotates at a lower rpm in the spin cycle in the functional clothes program than in the standard program, thus providing a weaker rinse ability. Thus, the spin cycle separates the wash water from the laundry using the centrifugal force generated by rotation at a high speed of the drum, and can simultaneously provide a rinse function for separating the washing agent and the contaminants, along with the wash water, from the laundry. In the normal spin phase of the spin cycle of the functional clothing program, a relatively low rpm of rotation of the drum is used, and the final rinse ability may be impaired. Thus, the rinse step of the rinse cycle of the functional clothing program can be performed three times or more.

F.3 Spin cycle (S1570)

The spin cycle of the functional clothing program may be similar to the spin cycles of programs including the standard program mentioned above and the spin cycles of other programs, which will be described later. In the normal spin phase of the spin cycle, the drum rotates with less rpm than in the normal spin phase of the standard program to prevent damage to the laundry.

G. PROGRAM G (QUICK WASH PROGRAM)

A quick wash program G, called a “quick wash program”, which allows laundry to be washed in a relatively short time compared to other programs, will be described with reference to FIG. 26. A small amount of laundry usually requires significantly less washing time than a large amount of laundry. In the case of a small amount of laundry, an excessively long time may take a total wash. In this regard, a program may be provided that is used to wash a small amount of laundry in a short time. The quick wash program is based on the standard program described above with reference to FIG. 7, and each cycle or operating conditions of each step in the standard program can be optimized, or a predetermined number of steps can be excluded accordingly.

First of all, the user can select the quick wash program from the program selection part 117 (S710B), and the control part can execute the wash cycle (S730B), the rinse cycle (S750B) and the spin cycle (S770) constituting the quick wash program.

G.l washing cycle

G.1.1 Determination of the amount of laundry

The control part may start the step of (S731B) determining the amount of linen for determining the amount of linen. The laundry amount determination step may be performed before the start of the water supply step, after the user selects a quick wash program. The amount of laundry measured at the stage of determining the amount of linen of the standard program, as described above, can be divided into categories into two categories, that is, a large number and a small amount, to determine the next cycle or drum movement at each stage and for other working conditions. In a quick wash program, the measured amount of laundry can be used for a specific total time for general washing, that is, the total actual time required to complete the wash, as well as rinse and spin cycles. In this case, the amount of laundry can be determined by a larger number of categories, for example, by three or more categories in a quick wash program. If the amount of laundry is classified into more categories, different total washing times (that is, the total actual time required to complete the washing, rinsing and spin cycles) can be set for each of the categories according to the amount of linen. As a result, the total washing time can be controlled according to the amount of laundry. In this regard, a relatively short time can be suitably applied to a small amount of laundry, without impairing the actual washing ability.

For example, a measured amount of laundry can be classified into three categories, including the first, second, and third categories, or can be classified into more than three categories. For example, the first category corresponds to a load of less than about 1.5 kg, and the corresponding washing time of the first category can be set from about 25 to 30 minutes, in particular 29 minutes. The second category can correspond to a load of about 1.5 to 4.0 kg, and the corresponding washing time of the second category can be set equal to from about 35 to 40 minutes, in particular 39 minutes. Finally, the third category can correspond to a load of more than about 4.0 kg, and the corresponding washing time of the third category can be from 45 to 50 minutes, and in particular 49 minutes. Such categories and times can be stored in the memory of the control part as tabular data.

After determining the amount of linen at the stage of determining the amount of linen, the control part determines which category corresponds to the measured amount of linen, with reference to the saved table of categories. After that, the control part can set the washing time set for the category corresponding to the measured amount of linen, so that it represents the actual washing time.

G.1.2 Water supply / Heating / Washing

After the above sequence of steps, the control part may sequentially perform the step of supplying water (S733B), the heating step (S740B) and the washing step (S742B) of the washing cycle (S730B). The water supplying step, the heating step, the washing step of the washing cycle of the quick wash program are similar to the steps of the washing cycles of the standard program shown in FIG. 7, and thus a further detailed description thereof will be excluded.

As noted above, in the standard program shown in FIG. 7, a preparation step for heating, designed to facilitate heating of the wash water, may be performed before the heating step. However, the pre-heating step may be a preliminary step, and the movement of the drum for a predetermined period of time may increase the total washing time. As a result, the preliminary steps, such as the pre-heating step before the heating step, may not be performed in the quick wash program. After the water supply program, the heating step may begin.

G.2 Rinse cycle

After the completion of the washing cycle, a rinse cycle (S750B) can be performed, which is designed to remove residual detergent and dirt remaining in the laundry. The rinse cycle (S750B) is similar to the standard program rinse cycle (S750) shown in FIG. 7, and thus an additional detailed description of the invention of the rinse cycle will be omitted.

The first rinse stage, performed at the initial stage of the rinse cycle of the standard program, may include the stage of the first drive of the drum, using the filtering movement, which requires more time. In contrast, the drum movements embodied in the rinsing steps (S751B, S756B, S760B) require a relatively short time, while still allowing for sufficient rinsing of the laundry. As a result, the filtering movement of the first rinse step provided in the rinse cycle of the quick wash program can be eliminated to reduce the total wash time.

G.3 Spin cycle

After the rinse cycle is completed, the control part can start the spin cycle (S770B). The spin cycle of the quick wash program is similar to the spin cycle of the standard program shown in FIG. 7, and thus a further detailed description thereof will be omitted here.

At the stage of unraveling the laundry, performed at the initial stage of the spin cycle of the standard program, perform drum movements to unravel the laundry. However, such a movement of the drum may not significantly affect the spin ability. In this regard, the stage of unraveling the laundry may not be performed in the spin cycle of the quick wash program, to reduce the total washing time.

While the drum in the normal standard program step can rotate at about 1000 rpm, the drum in the normal spin phase of the quick wash program can rotate at about 800 rpm. As the rotation speed of the drum increases, vibration and noise of the drum may become more significant, and the preparation step, so that the drum can reach higher rpm, such as the step of measuring the eccentricity, can be repeated a sufficient number of times , which requires a relatively long time. As a result, the target rotation speed of the quick wash program is reduced compared to the standard program, and thus it is possible to prevent an increase in acceleration time to achieve the desired speed.

As noted above, the quick wash program can classify the amount of laundry into certain categories, and can set the total washing time corresponding to each category, so that the total washing time of a large amount of laundry as well as a small amount of laundry can be reduced, respectively. In addition, compared to the standard program, unnecessary steps can be excluded from the cycles of the total time to reduce washing. However, most of the drum movements applied in the cycles of the standard program are adapted in the quick wash program, and the required degree of washing can be achieved. As a result, the quick wash program allows you to wash a small amount of laundry in a short time, while maintaining the ability to wash.

H. PROGRAM H (SILENT PROGRAM)

Program H will be described with reference to FIG. 16. Program H can be called a “silent program” that reduces noise during washing.

In some circumstances, the user may need less noise from the washing machine. For example, if washing is performed at night and / or a small child or children are sleeping, it is preferable that the washing machine operate with less noise during operation. Reduced noise during operation can be achieved in various ways. An optimization of the washing control method can effectively reduce noise without increasing production costs. A washing control method made to reduce such noise can be implemented on the basis of one program, namely, a quiet program presented as a result of optimization of the operating conditions. A silent program is based on a standard program and is implemented by optimizing or eliminating certain operating conditions of certain cycles or stages of a standard program. In FIG. 16 is a flowchart of silent program steps different from the steps of a standard program. First, the user can select a quiet program from the program selection part 117 (S1610), and the control part can perform the following sequence of operations.

H.1 Cycle (S1630) Wash

H.1.1 Determination (S1631) of the amount of laundry

The control part may begin the step of determining the amount of laundry to determine the amount of laundry. The step of determining the amount of laundry has been described above, and thus an additional detailed description thereof will be excluded. The goal of a silent program is to reduce noise and / or vibration while maintaining the ability to wash. The movements of the drum drive at each stage may vary according to the amount of laundry.

H.1.1. Supply (S1633) of water

After the user selects a silent program, the water supplying step may begin. At the water supply stage, washing water is supplied to the tank. In addition, in the water supplying step, the detergent mixed with the washing water dissolves and wets the laundry loaded in the drum. At the silent program water supply stage, the control part can supply more wash water to the tank compared to the standard program water supply step. The reason that more washing water is supplied will be described in the next washing step.

H.1.1.1 First water supply (S1635)

In the water supplying step, the control part can be embodied from the first water supplying step, together with the washing water supply. In the first water supply step, the control part controls the drum being controlled to provide a rolling motion.

As noted above, during rolling movement, the drum constantly rotates in a predetermined direction, and the laundry is separated from the drum, after turning to a position of 90 ° or less relative to the direction of rotation of the drum from the lowest point of the drum. When rolling, the drum rotates at a relatively low speed, and the divided laundry moves with rolling along the inner surface of the drum to the lowest point of the drum, without falling to the lowest point. In this regard, the rotation of the drum and the rolling movement of the laundry can generate a predetermined vortex in the wash water, and this can contribute to the dissolution of the detergent in the wash water. At the same time, the rolling motion induces the rolling motion of the laundry along the inner surface of the drum, and cannot but generate noise as a result of the shock generated by the sudden drop of the laundry. As a result, the rolling movement in the first stage of the water supply can provide a sufficient degree of dissolution of the detergent in the washing water, while reducing noise. At the first stage of water supply, the rolling movement can be repeated over a predetermined period of time many times.

H.1.1.2 Second water supply (S1637)

After the first water supply step is completed, the control part can start the second water supply step. At the second stage of water supply, the control part can control the drum, for its drive sequentially into the filtration movement and the rolling movement, with a continuous supply of washing water to the tank. The first and second stages of the water supply may differ from each other, in accordance with the corresponding pre-installation time, and the time of each stage can be adjusted in accordance with the amount of linen.

As noted above, during the filtration movement, the drum rotates at high speed to generate centrifugal force, and the generated centrifugal force keeps the laundry in close contact with the surface of the inner circumference of the drum. In addition, the washing water flows through the laundry and through the hole in the drum under the influence of centrifugal force, and flows into the tank. As a result, the laundry is wetted with washing water as the filter moves. In addition, the washing water simply flows through the laundry, and the laundry cannot be damaged by being wetted by the washing water. After the filtration movement has ended for a predetermined period of time, a rolling movement may be performed. As noted above, the rolling movement in the first stage of the water supply can provide a sufficient degree of dissolution of the detergent in the washing water while reducing noise. In addition, the wider surface area of the laundry is in contact with the washing water, moving with rolling along the inner surface of the drum, and thus, the laundry can be wetted more effectively and evenly in the washing water. As a result, a combination of filtration and rolling movements can minimize noise and provide the ability to moisten the laundry, dissolve the detergent and unravel the laundry, achieved efficiently. Such a sequential combination of filtration and rolling motions can be repeated several times over a given period of time.

H.1.2 Wash (S1635)

After supplying washing water for a given water level, the water supplying step ends, and then the washing step may start.

H.1.2.1 Heating step / first wash (S1640)

After the end of the water supplying step, the control part starts the first washing step. The first washing step may include a heating step configured to heat the wash water to a predetermined temperature. In contrast to the heating step and the washing step in the standard program, the first washing step of the silent program can include only rolling motion. The rolling movement provides movement of the laundry in the form of rolling along the inner surface of the drum, without a sudden drop in the laundry. As a result, such a rolling motion can provide maximum friction between the laundry and the washing water, and between the laundry and the drum, and the washing step can efficiently remove contaminants from the laundry with minimal noise.

As noted above, the control part in the water supplying step can supply a larger amount of washing water as compared to the water supplying step in the standard program. For example, the control part can control the amount of washing water supplied in the washing step with a silent program, increasing by 1.2 times with respect to the amount of washing water supplied for the same amount of laundry. An increase in the amount of washing water leads to an increase in the water level inside the drum. When the laundry is moved with rolling inside the drum with an increased water level using the rolling movement, the friction between the washing water and the laundry can be further increased, and the washing ability can be further improved. Ultimately, the rolling movement performed in the washing step can provide an appropriate washing ability, while suppressing noise generation.

After a predetermined amount or more of laundry has been loaded into the drum, rotating the drum at low speed does not allow easy rotation of the laundry with the drum. Even if the laundry will rotate with the drum, a large amount of laundry can lead to difficulties in rolling movement on the inner surface of the drum, due to the volume. As a result, since the rolling movement causes the drum to rotate at a relatively low speed, a large amount of laundry does not perform the rolling movement, as expected, and thus does not allow the desired washing ability to be achieved. In this regard, in the case of washing a large amount of laundry, the washing step can be adapted for a different movement of the drum compared to the rolling movement described above.

Thus, when the laundry amount measured in the laundry amount determining step is larger than the predetermined reference amount, the tipping motion can be implemented in the washing step, instead of the rolling motion. The tipping movement provides the rotation of the drum in a given direction, continuously, similar to the rolling movement, and the rotation speed of the drum during the tipping movement is higher than the speed of rotation of the drum during the rolling movement. As a result, the laundry is separated from the drum after turning to a position of 90 ° or more relative to the direction of rotation of the drum from the lowest point of the drum. Since the drum rotates at a relatively high speed during the tipping movement, the separated laundry falls to the lowest point of the drum, and this differs from the rolling movement. As a result, the laundry may be washed by the impact generated by the friction between the laundry and the washing water, and as a result of the fall. Although the tipping motion generates more noise than the rolling motion, the generated noise may be lower than the noise generated by other drum movements, such as step motion and grinding movement, which have a strong washing ability. In this regard, the tipping movement allows you to effectively wash a large amount of linen while suppressing the generation of noise as much as possible. When the measured amount of laundry is less than the reference value, the rolling motion can be implemented, as noted above.

To facilitate heating of the wash water, a preparation step for heating before the heating step may be performed. However, the pre-heating step may include drum movement, and drum movement may generate noise. As a result, preliminary steps, such as the pre-heating step before the first washing step, may not be performed in the washing step with this program, and the washing water may be heated to a predetermined temperature in the first washing step. The washing water can be heated using a heater or a steam generating device installed in the tank.

H.1.2.2 Second wash (S1642)

The control part may start the second washing step after the first washing step. Contaminants can be completely removed during the second wash step. Also, the first washing step, the second washing step of the silent program may include only rolling motion. Noise generation can be minimized by rolling motion, and laundry contaminants can be effectively removed by rolling motion, as described above. In addition, a larger amount of washing water is supplied during the rolling movement compared to the amount of washing water supplied in the standard program. In this regard, the adaptation of the rolling motion can provide sufficient washing ability, while suppressing the generation of noise.

If the amount of laundry is large, the drum is driven with tipping over. If the amount of laundry is small, the drum is driven by rolling, similarly to the first washing step described above.

H.2 Cycle (1650) rinse

After the wash cycle is completed, a rinse cycle may begin, configured to remove the remnants of the detergent and contaminants from the laundry. The rinse cycle is similar to the rinse cycles of the standard program described above, and thus an additional detailed description thereof will be excluded.

The first rinse stage, implemented at the initial stage of the rinse cycle of the standard program, includes the first stage of the drum drive using the filtering movement, which allows you to generate significant noise. As a result, the filtering movement is not performed in the rinse cycle of the silent program. While various drum movements may be applied at the rinsing stages of the standard program, the silent program can only use rolling movements for the rinsing stages to reduce noise, as in the washing step.

To enhance the overall rinse ability, the rinse stages are repeated more times in a silent program than in the standard program. For example, a rinse cycle can be implemented four times or more. This is due to the fact that the drum rotates at a lower rpm during spinning in the silent program than in the rinse cycle of the standard program, thus impairing the rinsing ability. Thus, in the spin cycle, the washing water is usually separated from the laundry by the centrifugal force generated by rotating at a high speed of the drum, and the laundry detergent and contaminants are simultaneously removed from the laundry along with the washing water. However, in a normal spin step, such as a spin cycle in a silent program, the drum rotates at a lower rpm, and thus the final rinse ability may be impaired. As a result, the rinse steps can be implemented four times or more in the rinse cycle of the silent program.

H.3 Cycle (S1670) Spin

After the rinse cycle has ended, the control part may start the spin cycle. The spin cycle is similar to the spin cycle of a standard program and, thus, an additional detailed description thereof will be excluded.

In the normal spin phase in the silent program, the drum can rotate at a lower rpm than in the normal spin phase of the standard program to reduce noise. For example, to reduce noise, the drum can rotate at a given rpm, which is 50% rpm during a normal spin cycle of a standard program. Thus, the drum can rotate at a speed of approximately 400 rpm.

I. PROGRAM I (PROGRAMS FOR COTTON, SYNTHETICS AND MIXED FABRICS)

As well as the program for functional clothes described above, programs can be provided in accordance with the type of items of linen and the type of fabric linen. For example, a cotton program may be provided for washing cotton fabrics such as towels, tablecloths, t-shirts, etc., a synthetic program or a light-weight program for washing synthetic fabric, and a mixed program for washing the mixture types of fabrics such as cotton and synthetic fabrics. The synthetic material may include, for example, polyamide, acrylic, polyester and other similar fabrics.

Cotton fabric and synthetic fabric may have different characteristics. Thus, cotton fabric is more resistant to abrasion and impact, with less chance of deformation than synthetic fabric. In addition, a cotton fabric can absorb more washing water than a synthetic fabric, and less wrinkles are formed than in a synthetic fabric. However, items of cotton fabric are more difficult to separate from items of synthetic fabric, for separating items of cotton fabric from items of synthetic fabric, and for performing the respective washing cycles, for washing them by a permanent separate wash. This is due to the fact that the user usually wears clothes made of cotton and synthetic fabric together and does not want to wash separate partial loads of cotton and synthetic clothes. As a result, a washing program combining the advantages of a cotton washing program and a synthetics washing program, that is, a mixed program, may be provided.

A mixed program can be useful for many reasons. For example, if a user separates items of cotton fabric and items of synthetic fabric to wash them separately, the washing may be delayed, which is a drawback until a predetermined amount of laundry is collected, and thus, soiled laundry may not be used in for a relatively long time. Of course, if a small amount of laundry is washed separately, energy is wasted. In this regard, the mixed program, which allows washing laundry together from ordinary types of fabric, eliminates the problem of exclusion of laundry from washing and wasted energy.

In the washing program provided in accordance with such blends of fabric types shown in FIG. 17, the wash cycle, rinse cycle and spin cycle may differ in accordance with the characteristics of a particular type of fabric. Accordingly, a cotton washing program, a synthetics program, and a blended program having operating conditions of each step adjusted based on the type of fabric will be described with reference to the cycles and steps of the standard program described above. Compared with the standard program, a repeated detailed description of the invention will be excluded, respectively, and the difference will be described in detail.

After the user selects a cotton washing program, a synthetics program, or a mixed fabric program (S1710) according to the type of fabric, the control part may execute a washing cycle (S1730), a rinse cycle (S1750) and a spin cycle (S1770) , and stages in accordance with the selected program.

I.1 Wash cycle

I.1.1 Step (S1734) for determining the amount of linen

The control part can determine the amount of linen in the washing cycle and the method for determining the amount of linen in this program is similar to the methods described above, and its repeated description will be excluded. The measured amount of laundry can be used appropriately in the next step, which will be described in detail.

I.1.2. Water Supply Step (S1733)

The control part may perform a water supplying step configured to supply washing water and washing agent to the tub or drum and dissolving the washing agent in the washing water. Thus, washing water is supplied from an external water supply source together with a washing means. To supply the washing water and the washing agent to the laundry, initially the washing water and the washing agent are supplied to the laundry located directly inside the drum. Thus, the water supply path for washing water can be located in the front upper part of the drum in the direction inside the drum, and not in the lower part of the tank. When the detergent is a powder type detergent, the dissolution of the detergent cannot be sufficiently performed, and the movement of the drum drive for the water supplying step, which will be described later, allows the detergent to be sufficiently dissolved. As a result, the washing water and the washing means are supplied to the laundry at the initial stage of the washing cycle, and the time required for the washing cycle can be reduced to improve the washing efficiency.

I.1.2.1 Activation (S1735) of dissolution of the detergent

In the step of activating the dissolution of the detergent, the movement of the drum drive may differ according to the type of fabric of the laundry. For example, the rubbing motion may be performed for items of linen made of cotton fabric, and the step motion may be embodied for items of linen made of synthetic fabric. In alternative embodiments, rubbing motion and / or step motion may be embodied.

The rubbing movement bends / spreads and rubs the laundry by dropping the laundry to generate friction. In this regard, one can expect an effect similar to the movement of cleaning with human hands at the initial stage of the washing cycle. However, such a rubbing motion can be embodied for a fabric that is somewhat resistant to abrasion, and the drum drive movement can be a rubbing movement in the step of activating the dissolution of the detergent program for cotton fabrics.

According to the characteristics of the synthetic fabric, the items of synthetic underwear are lighter than the items of cotton underwear, and the items of synthetic underwear contain a smaller percentage of water than the items of cotton underwear. In addition, items of synthetic underwear may be more prone to damage due to friction than items made of cotton underwear. In this regard, the step motion can be implemented at the stage of activating the dissolution of the detergent, in order to facilitate the dissolution of the detergent and prevent tissue damage. Thus, the movement of the drum drive in the step of activating the dissolution of the detergent for the synthetic fabric may be a step motion. With a step motion, the maximum impact when falling for light synthetic fabric is applied to facilitate the dissolution of the detergent, and it can be expected that the washing effect by human hands can be performed at the initial stage of the washing cycle.

The movement of the drum drive at the stage of activating the dissolution of the washing means, at the stage of the mixed program, may be a combination of the step motion and the rubbing motion. Thus, the step movement and the rubbing movement, which are optimal for cotton fabric and synthetic fabric, respectively, can be combined in such a way as to facilitate the dissolution of the detergent, and you can expect to achieve the effect of washing at the initial stage of the wash cycle. In this case, the different movements of the drum drive are combined and, therefore, the structures of movement of the laundry and the structure of the movement of water for washing can be quite different from each other to improve the efficiency of the washing cycle.

I.1.2.2 Humidification (S1736) of laundry

During the wetting phase of the laundry in the standard program, the drum can rotate with a rolling motion. The rolling movement generates less friction applied to the laundry than the rubbing movement and rolling movement described above, performed during the period during which the laundry is wetted. As a result, although friction is applied between wet laundry items, there is no fear of damage to the laundry, and the laundry wetting step performed by the rolling movement can be performed similarly, regardless of the type of fabric of the laundry.

Regardless of whether the fabric is cotton or synthetic, the rolling movement can be performed in the wetting step of the laundry. Even when the user selects any of the programs for cotton, programs for mixed linen or programs for synthetics, the rolling movement can be performed at the stage of wetting the laundry after the step of activating the dissolution of the detergent.

The laundry wetting step may include two steps including the first and second laundry wetting steps, which are individually implemented. For example, when the laundry wetting step is performed within 10 minutes, the first laundry wetting step may be performed within 5 minutes, and the second laundry wetting step may be performed within 5 minutes. In particular, an additional supply of water can be performed at the stage of the first wetting of the laundry, and the step of the second wetting of the laundry can be performed after the end of the additional supply of water.

The movements of the drum drive at the stages of the first and second wetting of the laundry may be different for a more efficient wetting of the laundry and for a uniform supply of both detergent and washing water to the laundry. For example, a drum drive movement in a first laundry wetting step may be a rolling motion, and a drum drive movement in a second laundry wetting step may be a combination of a rolling motion and a filtering motion. Thus, the rolling movement can be implemented with a given total effective ratio at the first stage of wetting the laundry. In the second stage of wetting the laundry, after the filtration movement is implemented once, the rolling movement is implemented four times, and this is one cycle. The cycle can be repeated.

The rolling movement occurs continuously with the laundry turning in the lower portion of the drum to increase the contact time between the washing water and the washing agent. The filtration movement distributes the laundry widely and evenly and provides a supply of washing water and a washing agent to the laundry, so that it can be possible to effectively wet the laundry. Typically, it may take about 13 minutes to finish wetting the laundry while tipping, while wetting the laundry may take about 10 minutes, in accordance with this embodiment.

The movement of the drum drive in accordance with the first wetting step of the laundry may differ in accordance with the amount of laundry. The movement of the drum drive in the first laundry wetting step may differ in accordance with the laundry amount determined in the laundry amount determining step. For example, if a certain amount of laundry is a predetermined level or more, the drum is driven by rolling, as mentioned above. If a certain amount of laundry is less than a predetermined level, the drum can be brought into a combination of step motion and rolling motion.

The step motion abruptly drops laundry after lifting. If the amount of laundry is large, the discharge distance of the laundry can be reduced. Thus, the step motion corresponds to a small amount of laundry. Such a step motion can damage the laundry. As a result, in the cotton washing program, when the laundry amount is less than a predetermined level, a combination of the step motion and the rolling motion can be embodied in the first wetting step of the laundry. When the laundry amount is a predetermined level or higher, the rolling movement may be embodied in the first wetting step of the laundry. With the synthetic laundry program and the mixed fabric program, when there is concern about damage to the laundry, the rolling movement can be implemented in the first wetting step of the laundry, regardless of the amount of laundry.

In alternative embodiments, the circulation step may be implemented in the step of supplying water to drive the drum. Thus, the circulation step can be synchronized with the motor drive configured to drive the drum. The washing water circulating when the laundry moves under the influence of the drum drive can be supplied to the laundry, and the purpose of the water supplying step can be achieved more efficiently.

The step of activating the dissolution of the laundry detergent and the step of wetting the laundry are included in the water supplying step in accordance with this embodiment. However, the step of activating the dissolution of the detergent and the step of wetting the laundry may be provided regardless of the step of supplying water. In this case, after the water supply, the step of activating the dissolution of the detergent in the wetting step of the laundry may be implemented.

I.1.3. Heating (S1741)

The heating step may differ in accordance with the selected operation program in this program. For example, the temperature of the washing water used in the heating step may be set differently, depending on the type of fabric of the laundry.

Cotton fabric is to some extent resistant to heat. As the temperature of the washing water rises, a larger amount of the washing means dissolves in the washing water, and this further contributes to the activation of the washing means. As a result, when a cotton washing program is selected, the temperature of the washing water can be set to approximately 60 ° C during the heating step. Such a washing water temperature may be selected from a range extending from cold water to water at a temperature of approximately 95 ° C through the selection part 118. As the temperature of the washing water increases, this can further contribute to the activation of the detergent, and the washing ability can be further improved, further improving the sterilization / bleaching effect, if appropriate.

Synthetic fabric may be more susceptible to / may be less resistant to heat, and thus a synthetics program or a fabric blend program is designed to prevent damage to the laundry by heat. When choosing a program for synthetics or a program for a mixture, the temperature of the washing water can be set at approximately 40 ° C during the heating step. In the program for synthetics or in the program for a mixture of fabrics, the user may not be allowed to choose a washing water temperature higher than 60 ° C to prevent damage to the laundry. For example, when a program for washing synthetics or a program for washing mixed fabrics is selected, the temperature of the washing water in the heating step may have an upper limit of 60 ° C.

The movement of the drum drive during the heating step may be a tipping movement, regardless of the program selected. This is due to the fact that the tipping movement allows you to untangle the laundry, reducing damage to the laundry. As a result, the tipping movement can provide steam or heated water for washing the laundry.

In alternative embodiments, the circulation step may be implemented in the heating step. The circulation step can be synchronized with the drum drive step. Since the circulation step is implemented after the initial heating is implemented to a predetermined degree, the circulation step can be synchronized with the drum drive for a predetermined time after the start of the initial drum drive.

I.1.4. Wash (S1742)

The drum drive movement in the washing step may be a sequential combination of a rolling motion and / or a tipping motion and / or a swing motion. The movement of the drum drive at the washing stage may be different, in accordance with the selected program, since at the same time the effect of protecting the fabric and the effect of improved washing ability should be achieved.

Thus, in the case of washing linen from cotton fabric, the movement of the drum drive is performed so that a large mechanical force can be applied to the laundry. In the case of washing laundry from a synthetic fabric, a drum drive movement for washing laundry using a relatively small mechanical force can be performed. The washing step may include one of the steps of the washing cycle, which takes the most time. As a result, the washing step can be controlled to perform the washing most efficiently. Since the required time of the washing step is long, the greatest damage to the laundry is likely to occur at the washing step.

For this reason, the drum drive can be carried out in a combination of a rolling motion and a tipping motion in the washing step when a cotton program is selected. The combination of two different movements applies different structures of great mechanical force to the laundry, and this can improve the washing efficiency. Thus, in accordance with the characteristics of cotton fabric, one should not be afraid of tissue damage. In this regard, a large mechanical force is applied to wash the laundry, and the washing effect can be further improved. When a cotton program is selected, a combination of the filtration movement and the tipping movement can be performed in the washing step, while synchronizing the circulation step with the drum drive. Since cotton is less susceptible to damage to the laundry, the filtration movement can continuously and efficiently supply washing water and detergent to the laundry.

In contrast, when a synthetics program is selected, the drum can rotate in a combination of a swing motion and a tilt motion at the washing stage. The combination of these two different movements can improve the washing effect. During the swing movement, the laundry sways smoothly in the wash water, and thus, damage to the laundry resulting from friction can be minimized. In addition, the time during which the laundry is in contact with washing water can be increased sufficiently to improve the washing effect.

Since a mixed program is provided for co-washing both cotton items and synthetic items effectively, the washing effect should be improved and the damage to the clothes should be reduced as much as possible, regardless of the type of fabric. To meet this requirement, the movement of the drum drive in the washing step when the mixed program is selected may be a combination of the tipping motion and / or the swing motion and / or the rolling motion. Thus, a swing movement designed to prevent damage to the fabric can be provided, and a rolling movement designed to improve the washing ability can be provided.

With the program for synthetics and with the mixed program, the circulation stage can be synchronized with the drum drive, providing a continuous supply of both washing water and washing detergent to the laundry.

As noted above, although one of the cotton, synthetics, or blended programs is selected, the movements of the drum drive during the washing step can be controlled to combine different two movements. That is, to create different structures of the mechanical force and movement of the laundry, and to improve the visual satisfaction of the user.

When the level of contamination of the laundry is selected in the selection section 118, the total engine exposure ratio can be adjusted according to the selected level of contaminant. However, increasing the total exposure ratio also increases the time during which mechanical force is applied to the laundry. Given this, the total exposure ratio in the wash cycle may be different, in accordance with the program selected by the user. Thus, the total exposure ratio in the program for cotton can be greater than in the program for synthetics and in the mixed program.

I.1.2 Rinse cycle (S1750)

After the wash cycle, a rinse cycle may begin. In the rinse cycle, the rinsing steps performed to drain the washing water after rinsing the laundry using the supplied washing water may be repeated. The rinse stage in the rinse cycle in this program can be repeated three times or more.

The washing water can be supplied up to the water level of the rinse cycle, which is higher than the water level during the washing cycle. Thus, washing water can be supplied to a predetermined level of water that is visible externally to improve the rinse effect by using enough washing water.

The drum drive movement in the rinse cycle may be a tipping movement. During the tipping movement, the laundry is immersed / removed into / from the washing water, and this may be repeated. The high water level, together with the tipping movement, visually notifies the user of sufficient rinsing. The tipping movement in the rinse cycle can prevent the motor from overheating and also improve the rinse efficiency. Thus, the water level in the rinse cycle may be higher than in the washing cycle, and the load applied to the drum may be increased due to the washing water, respectively. The step motion, rubbing motion and swing motion repeat the rotation and braking of the engine. As a result, such braking can generate excessive engine load. In addition, if the water level is high, the load generated by the washing water can be increased. In a rinse cycle having a high water level, the movement of the drum drive does not contain sudden braking to prevent engine overheating. Thus, the tipping movement made by rotating the drum in a predetermined direction may be preferable in the rinse cycle.

 The circulation step may be embodied in a rinse cycle to circulate the washing water contained in the tub into the drum. This may create the effect of visually notifying the user of sufficient rinsing.

I.3. Spin cycle (S1770)

After the washing cycle and the rinsing cycle have been completed, a spin cycle may be performed to remove washing water from the laundry as much as possible. In the normal spin phase, in the spin cycle, the drum rpm can be changed in accordance with the program selected by the user, taking into account the percentage of water content and residual folds of linen in accordance with the type of fabric.

Cotton fabric has a high percentage of water content or degree of absorption, with less wrinkling. Even if creases occur in cotton underwear, these creases can be easily removed. In contrast, synthetic fabric has a low percentage of water content or degree of absorption, with a high risk of wrinkling. As a result, in a cotton program, a predetermined rpm may be greater than a synthetics program and a blended program, and a predetermined rpm may be, for example, 1000 rpm or more. Here, the number of rpm during the spin cycle can be changed by the user through part of the choice of options.

The set value of the number of rpm of the program for synthetics and the mixed program can be set 400-600 rpm. Even when synthetics are squeezed out at low rpm, washing water can be sufficiently removed from synthetics and wrinkling can be prevented. In this case, the user can change the number of rpm during the spin cycle through the selection part of the option. In some embodiments, the spin amount is set to a maximum of 800 rpm.

J. PROGRAM J (PROGRAM FOR WOOL)

The washing program provided according to the type of fabric of the laundry may also include a program for wool instead of a program for cotton, a program for synthetics and a mixed program. The wool program is used for linen that has a lower degree of contamination and a greater likelihood of tissue damage. Thus, a program for wool can be provided for washing items of linen made of woolen fabric that require hand washing. If they are washed using great mechanical strength, items of linen made of woolen cloth can be easily damaged. As a result, in the program for wool, the drum is brought into a predetermined movement having a weak mechanical force, for example, a swing motion. Considering the characteristics of the woolen fabric, the movements of the drum drive in the wash cycle, in the rinse cycle and in the spin cycle of the wool program may differ from the movement of the drum in the standard program.

J.1. Washing cycle

In the program for wool, it is important to prevent damage to the fabric, and the drum can be smoothly driven into a swing motion designed to move the laundry to the right and left at the bottom of the drum, in the wash cycle of the program for wool. In this case, the water level can be quite high, providing the visibility of the water level in the drum from the outside. In this regard, friction between the surface of the inner circumference of the drum and the laundry can be minimized, and the touch of the lifts on the laundry can be repeated by rotating the laundry immersed in the washing water, and this prevents damage to the laundry and allows you to gently wash or rinse. Such a swing motion can minimize damage to the laundry and increase the contact time with the washing water and the laundry detergent to improve the washing effect.

The wool program is shown in FIG. 18. The wash cycle of the wool program is selected (S1810). In the initial step of the washing cycle (S1830), the washing water and the washing means can be supplied to the tub or to the drum, that is, the water supplying step (S1833) can be performed. The water supplying step may include a step (S1835) for activating the dissolution of the detergent, and a step (S1836) for wetting the laundry. The step of activating the dissolution of the detergent is made so as to facilitate the dissolution of the detergent in the initial part of the water supplying step, and the wetting step of the laundry is intended to sufficiently wet the laundry, to prepare the washing step after the end of the water supply. The laundry wetting step may be performed after or before the water supply is completed.

The detergent used in the wool program can be a neutral detergent and usually a liquid type, which does not require significant time to dissolve in washing water, as for the powder type. For this reason, the washing agent is supplied to the laundry at the initial stage of the water supply, along with washing water. As soon as the water supply starts, the washing water is supplied to the liquid detergent contained in the detergent compartment. The washing water and the liquid detergent are fed together into a tub or a drum. For faster supply of washing water and liquid detergent to the laundry, the washing water and the liquid detergent mixed together can be sprayed into the laundry located in the drum. In order to more efficiently dissolve the washing means, a circulation step may be implemented to supply the washing water contained in the tub at the top of the drum.

The drum can be driven by swinging, and then a weak whirlwind is generated in the washing water so that it can help dissolve the detergent, while preventing damage to the laundry. After the water supply is completed, the swing movement and the circulation step can be performed together to prepare for the washing step. This can be considered as a stage of moistening a certain type of laundry.

After the step of activating the dissolution of the detergent and the step of wetting the laundry, if necessary, the heating step (S1841) for heating the washing water can be performed. However, the temperature of the washing water in the heating step can be controlled so that it does not exceed 40 ° C. The heat generated when the temperature of the washing water is too high leads to deformation of the laundry and damage to the laundry from the woolen fabric. A temperature of 40 ° C does not lead to the formation of deformation and contributes to the activation of the detergent and to the absorption of water for washing in the laundry.

The drum drive movement of the washing step (S1842) may be a swing movement. The washing step requires the longest time among the steps of the washing cycle, and to prevent damage to the laundry in the washing step, a swing motion in the washing step is used. If you repeatedly apply mechanical force and stop to the linen of woolen fabric, fabric damage can occur. This mechanical repetition generates compression of the woolen fabric. To prevent compression during the washing step, a swing movement can be continuously performed.

As mentioned above, during the swing movement, the drum drive is carried out using rheostatic braking, and a considerable load on the engine may not be applied. In addition, with the swing movement, the drum drive can be executed with reciprocating movements between the right and left directions to a level less than 90 ° C. As a result, a large load is not required to lift the laundry. If the drum is to be continuously driven by rubbing and stepping, excessive load may be applied to the motor. With the tipping motion, less load can be applied to the engine than with the rubbing and stepping motion, but the laundry rises and falls, resulting in tissue damage. Given this, perform the swing movement at the stage of washing.

J.2 Cycle (S1850) rinse

After the wash cycle, a rinse cycle may be performed. Initially, an intermediate spin may be performed. After the intermediate spin, the washing water is supplied to start rinsing, and the rinsing cycle is performed several times, if necessary. Thus, after the water is supplied and rinsed, draining of the water can be repeated. Typically, an intermediate spin is performed in the middle of the water supply after the water is drained.

The intermediate spin unravels the laundry at a relatively low rotation speed. The intermediate spin includes an intermediate spin made to unravel the laundry at a relatively low rotational speed, while detecting vibration, and the main spin is designed to spin the laundry at a relatively high rotational speed for a predetermined time. The intermediate spin may be performed at approximately 100 rpm, and the main spin may be performed at approximately 200 rpm (low resonant frequency) or higher.

However, when a wool program is selected, an intermediate spin may be eliminated. Intermediate spinning is the process of discharging laundry water from the laundry under the influence of centrifugal force, and tensile force can inevitably occur in the laundry. In this regard, linen made of woolen fabric, which is subjected to external force, may be damaged during the spin cycle. To eliminate such a problem, intermediate spinning can be eliminated. For example, the main spin consisting of an intermediate spin is excluded, and only an intermediate spin can be performed. If all processes of discharging washing water by centrifugal force are excluded, the rinsing ability may be significantly impaired. Given the ability to rinse and damage the laundry, only an intermediate spin can be embodied, and the main spin can be eliminated.

The rinse sequence, which includes the supply and discharge of water, can be implemented three times or more, since the remnants of the washing agent must be sufficiently removed from the laundry. The rinse water level may be higher than the water level in the washing step, and the circulation step may be implemented in the rinse. When a liquid detergent is used, it is usually possible to remove the remnants of the detergent sufficiently, since the rinsing step is performed twice and with an intermediate spin. However, in the case of such a program, the main spin of the intermediate spin is eliminated to prevent damage to the laundry, and the rinsing step can be performed three times to achieve the desired rinse effect.

The drum drive in the rinse step may be a swing motion to prevent damage to the laundry. The swing motion smoothly pumps the laundry in the wash water and allows the remnants of the detergent absorbed by the laundry to be removed into the wash water, so that the rinse efficiency can be improved.

J.3 Cycle (S1870) Spin

After the rinse cycle is completed, the spin cycle may begin. The spin cycle is similar to the spin cycle of the standard program described above, while the number of rpm of the drum for the normal spin phase can be set to 800 rpm or less to protect linen from woolen fabric.

K. PROGRAM K (THIN FABRIC WASHING PROGRAM)

A washing program provided in accordance with the type of fabric of the laundry may include a washing program for thin fabrics, as shown in FIG. 19, for washing laundry items made from a thin fabric such as silk, synthetic fabric, laundry items having metal accessories attached thereto, and other similar thin products. A drum movement having a relatively weak mechanical force, for example, a rocking movement, can be performed for soft washing fine clothes in a fine fabric washing program, similar to a wool program. As a result, given the characteristics of the thin fabric, the movements of the drum drive of the wash cycle, the rinse cycle and the spin cycle of the washing program, the thin fabrics may differ from the movement of the drum drive of the standard program.

K.1 Cycle (S1930) Wash

Similarly to the wool program, the thin fabric washing program is selected (S1910), and the drum is driven by rolling in the washing cycle of the thin fabric washing program (S1930), and the washing water is supplied (S1933) to a relatively high water level. In addition, the step (S1935) of activating the dissolution of the detergent may be similar to the step of activating the dissolution of the detergent for the wool program, since liquid type detergent is typically used to wash delicate items of laundry in the thin-tissue program, similar to the program for wool . However, after the step of activating the dissolution of the washing means, the step of washing the laundry (S1936) may differ from the wetting step of the laundry program for the wool. Woolen fabric has a relatively good ability to absorb water compared to thin fabric, and thin fabric is more susceptible to damage due to heat than wool fabric. In this regard, the temperature of the washing water used to wash a thin cloth can be set to approximately 30 ° C. Although cold water could be chosen, a temperature higher than 40 ° C is usually not chosen.

Soaking laundry can be effectively performed using a filtering motion in the laundry soaking step. The circulation step may also be implemented. After the drum is driven into rotation and the laundry is evenly distributed inside the drum, in order to expand the surface area of the laundry, the washing water contained in the tub is circulated in the washing direction in the circulation step. In addition, a rocking movement is performed to immerse the laundry in the wash water, and generate a soft movement of the laundry in order to facilitate wetting of the laundry. The filtration movement and the swing movement are repeated in various structures in order to facilitate the soaking of the laundry. However, the movement of the drum drive in the laundry soaking step can only be a swing motion.

After the soaking of the laundry is completed, the washing step (S1942) may begin. The movement of the drum in the washing step may be a swing movement. Thin fabric may be more resistant to external shocks than wool. To achieve higher washing efficiency, the drum movement in the washing step may be a combination of the swing motion and the tipping motion, with a relatively high level of washing water.

Alternatively, only the tipping motion can be performed in the washing step. In this case, the discarded laundry hits the surface of the washing water, and not the lower surface inside the drum, due to the high water level. This means that the fall distance will be reduced. While the blow applied to the laundry will be reduced, due to the high water level, a whirlwind is generated in the wash water, which improves the washing effect. Since such laundry has a relatively low degree of contamination, the time of the washing step can be set relatively short, and the total exposure ratio can be set relatively low. Although only the tipping movement is performed, damage to the laundry is possible. The circulation step may also be implemented in the washing step.

K.2 Cycle (S1950) rinse

After the wash cycle, a rinse cycle may begin. As noted above, it is possible to use a liquid type detergent in a thin fabric washing program, and the remnants of the detergent can be sufficiently removed in the rinse step performed twice. Similar to the wool program, the intermediate spin can be eliminated in the thin fabric program. For example, the intermediate spin is not excluded, and only the main spin can be excluded. The movement of the drum in the rinse cycle can only be a tipping movement. Such a tipping movement has the effect of distributing laundry. Thus, the tipping movement makes it possible to ensure uniform contact of the washing water with the entire surface area of the laundry and to remove the remnants of the washing agent outside. In this case, the washing water level may be relatively high. The swing motion can be added to the tipping motion in the rinse cycle.

K.3 Cycle (S1970) Spin

After the rinse cycle is completed, the spin cycle may begin. The spin cycle in this program may be similar to the program for washing wool. The number of rpm of the drum at the stage of normal extraction can be set so that it does not exceed 800 rpm The thin fabric has a low percentage of water / absorption, and the wash water can be sufficiently removed even when the drum is rotated with a relatively low rpm during the normal spin phase. In addition, normal spinning can be performed at a relatively low rpm to prevent tissue damage due to spinning.

L. PROGRAM L (SPORTS CLOTHING PROGRAM)

The sportswear program shown in FIG. 2d, which may be provided in a washing program divided into categories based on the type of fabric of the laundry. A program for sportswear may be provided for washing laundry made from a functional fabric having good air permeability and good sweat absorption function, such as mountaineering clothes, jogging suits and sportswear. Similar to a wool washing program or a thin fabric washing program, a drum movement having a weak mechanical force, such as a swing motion, can be performed in a sportswear washing program. In this regard, taking into account the characteristics of the fabric of sportswear, the movement of the drum in the washing, rinsing and spin cycles provided for in the program for washing sportswear, may differ from the movements of the drum in the standard program. After selecting (S2010) the sportswear program, the washing cycle (S2030), the rinsing cycle (S2050) and the spin cycle (S2070) can be embodied as a wool program and a fine fabric program. However, due to the characteristics of sportswear, the wash cycle for sportswear programs may differ from the wash cycle of the other programs described above.

L.1 Cycle (S2030) Wash

Sportswear has hydrophobic characteristics, which prevents the penetration of moisture into the tissue. As a result, compared with other types of fabrics, sportswear fabrics have a low percentage of water / low absorption, and thus, water can be supplied to the sportswear fabric in a sufficient amount and continuously during a cycle. To this end, the movement of the drum drive of the washing cycle (S2030), in particular, the water supplying step (S2033) provided in the washing cycle, may be different from the movement of the drum of the washing cycle in other programs.

Initially, in this program, the movement of the drum drive in the step (S2035) of activating the dissolution of the washing means may be a rubbing motion and / or a step motion. The fabric of sportswear is less susceptible to damage to the fabric compared to woolen or thin fabric, so that the program for washing sportswear can use the movement of the drum drive, allowing you to apply more mechanical force than when moving the swing.

The step of soaking the laundry of the washing program for sportswear may be different from the wool program and the thin fabric program. Although it helps prevent damage to the laundry, the rocking movement is not able to supply enough washing water to the folded laundry area due to the hydrophobic characteristics of the sportswear fabric. With this in mind, the filtration movement (including the circulation step) can be implemented at the stage of soaking the laundry of the program for washing sportswear. The filtration movement evenly distributes the laundry inside the drum and evenly supplies washing water to the laundry. Together with the filtration movement, a rolling movement adapted to continuously turn the laundry over can be embodied.

L.2 Cycle (S2050) rinse

The rinse cycle in this program may be similar to the rinse cycles of the standard program, the program for washing wool and the program for washing fine fabrics, and thus an additional detailed description thereof will be excluded.

L.3 Cycle (S2070) Spin

The spin cycle in this program may be similar to the spin cycles in the standard program, the program for washing wool and the program for washing thin linen, and thus, an additional detailed description thereof will be excluded.

M. PROGRAM M

In the washing machine according to the second embodiment described above, with reference to FIG. 2, the tank is directly attached to the body, and a drum is provided inside the tank. According to a second embodiment, the tank is stationary and only the drum vibrates. As a result, it is important to prevent the drum from contacting the tub when the drum rotates, and the distance between the tub and the drum may be greater than the distance in the washing machine, in accordance with the first embodiment shown in FIG. one.

When the distance between the tub and the drum is large, the laundry loaded in the drum may not be sufficiently wetted with water for washing supplied into the tub. In this regard, when water is supplied to the washing machine in accordance with the second embodiment, the circulation pump is turned on to effectively moisten the laundry, and the washing water supplied to the tub can be circulated. For example, the circulation pump can be continuously rotated or can be rotated at a predetermined interval, with the water supply valve open.

In the washing machine, in accordance with the second embodiment, the drum is connected to the back of the tub 230. However, the back of the tank 230 is held by the suspension module through the bearing housing 400, and not the tank. In this regard, compared with the washing machine, in accordance with the first embodiment, which includes the back of the tank directly connected to the tank, to support the load of the drum, the degree of freedom of the drum provided in the washing machine, in accordance with the first embodiment implementation may be relatively large, and the front portion of the drum may have an increased degree of freedom.

However, when water is supplied to the tank, the water supply line and the circulation line are used to supply washing water from the front of the tank. As a result, the laundry located in the front of the drum will be wetted first, and the load in the front of the drum will become larger than the load in the back. This may cause the front of the drum to begin to move down. If the front of the drum moves down, noise and vibration can be increased during rotation of the drum and can cause the drum to come in contact with the inside of the tank. As a result, in the washing machine, in accordance with the second embodiment, the laundry located in the front and in the rear of the drum should be moistened evenly when water is supplied to the laundry. Program M is called a washing program applicable to the washing machine in accordance with the second embodiment, namely, the standard program for the washing machine in accordance with the second embodiment. This program will be described with reference to FIG. 21.

M.1 Cycle (S2130) Wash

In FIG. 21 is a flowchart of a program M. When a user (S2110) selects this program in the program selection part, the control part may implement the following processing sequence.

The washing cycle may include a laundry amount determination step (S2131), a water supplying step (S2133), laundry soaking step (S2135), a heating step (S2137), and a washing step (S2139). In the following description, the laundry wetting step is described as an independent step separated from the water supplying step. However, the laundry soaking step may be included in the water supplying step.

M.1.1 Water supply (S2133)

After determining the amount of laundry in the wash cycle, the water supplying step may begin. The step of determining the amount of laundry at the stage of water supply is described in detail in the above programs, and thus, an additional detailed description thereof will be excluded.

 The control part supplies washing water to the inside of the tank in the water supplying step. In particular, the control part opens the water supply valve for supplying washing water to the tub through the water supply line and the compartment with the washing means. As a result, when the washing water is supplied to the laundry in the washing machine according to the second embodiment, embodiments of the water supply methods will be described that evenly wet the laundry located in the front and rear of the drum.

According to the water supply method, according to the first embodiment, when water is supplied in the water supplying step, the circulation pump is turned on to circulate the washing water and at the same time, the drum starts to work. The control part may perform the drive of the drum in the movement of grinding from the movements of the drum described above.

In the washing machine according to the second embodiment, the distance between the drum and the tub is greater than the distance between the tub and the drum in the first embodiment. Thus, in the second embodiment, if the drum is driven into tipping motion (as in the first embodiment) during the water supplying step, the laundry located in the rear portion of the drum cannot be uniformly wetted. Thus, since the gap between the drum and the tub is large, washing water between the drum and the tub cannot be raised as a result of the rotation of the drum during the tipping movement, and in particular, the laundry located at the rear of the drum is not wetted.

As a result, at the water supply stage in this program, the rubbing movement is embodied instead of the tipping movement. As noted above, during the grinding movement, the drum is rotated at a higher rpm (compared to the tipping movement), and washing water placed between the drum and the tub can be lifted by rotating the drum and then dumped onto the laundry.

In particular, if the back of the drum and the tub are tilted down in the washing machine according to the second embodiment, the washing water located in the back of the tub can be supplied to the surface area of the laundry during the rubbing movement. When rubbing, the drum rotates in a clockwise / counterclockwise direction, with a sharp change of direction of rotation. As a result, abruptly reversing the direction of rotation of the drum generates a whirlwind in the wash water, and the laundry located in the front and rear parts of the drum can be uniformly wetted.

When the water supply valve is open to supply water for washing, the drum is driven and it rotates and the laundry moves inside the drum in accordance with the drum drive. In this case, the washing water entering through the water supply line connected to the front of the drum can mainly flow into the laundry moving in the front of the drum. The laundry located at the front of the drum is wetted earlier than the laundry located at the back of the drum. As a result, in accordance with a second embodiment of the water supply method, the drum may not be rotated until a predetermined time elapses after the water supply valve is open to supply water, or until the water level will not reach the set level. When the drum is not driven for a predetermined time or until the washing water reaches a predetermined level, the washing water entering through the water supply line can be held in the lower portion of the tank. The set water level can be determined taking into account the gap between the tank and the drum, and the set time can be determined in accordance with the capacity of the tank and the drum, and the amount of laundry.

In particular, if the rear portion of the tub provided in the washing machine according to the second embodiment is tilted down, a large amount of washing water can be collected in the rear portion of the tub. Therefore, after a predetermined time has passed, the drum is rotated and rotated, and the washing water held in the rear portion of the tub can dampen the laundry located uniformly in the rear portion of the drum. When the drum drive in the washing machine is carried out in accordance with the second embodiment, the drum movement may be a tipping movement or a rubbing movement.

When the water supply valve is open to supply water in accordance with the second embodiment, without driving the drum, the water supply valve can be controlled. Thus, when the water supply valve is open to supply water, the washing water may have a predetermined pressure, due to the pressure of an external water supply source such as a water tap, and then the washing water supplied along the water supply line may be supplied in the front section of the drum under the influence of water pressure, so that the laundry located in the front section of the drum may be wetted earlier.

As a result, during the water supply in the second embodiment, the water supply valve is repeatedly controlled by turning it on and off so that it is not constantly open, and then the water supply for the streak can be controlled by turning it on and off, so as to have set sufficient water pressure so as not to feed it directly into the drum. Sufficient pressure that is not directly supplied to the drum means water pressure that allows the supply of water to fall through the water supply line along the drum, tank or door to collect at the bottom of the tank without spraying directly into the drum. Water falling along the drum, tank or door can be collected in the rear portion of the tank, and a description of the washing water collected in the tank is similar to the second embodiment, so that a duplication of the description can be eliminated.

When the laundry inside the drum gets tangled during the water supplying step, the laundry may be partially wetted. In particular, the laundry located in the center of the coma of entangled laundry may not be wetted, and only the laundry located on the surface area of this coma may be wetted. If only part of the laundry is wetted, the washing cannot be performed in the washing cycle, and the washing capabilities may be impaired. As a result, the control part can drive the drum into the filtering movement to uniformly wet the laundry if the laundry is tangled.

Thus, the control part opens the water supply valve for supplying water and at the same time controls the circulation pump for circulating the washing water. In addition, the control part rotates the drum with a predetermined number of rpm. The predetermined number of rpm is defined as the number of rpm, ensuring that the laundry will not be dropped by gravity, but will be in close contact with the inner surface of the drum during rotation of the drum. As a result, a predetermined rpm can be set to obtain the centrifugal force generated by the rotation of the drum, greater than the acceleration due to gravity when the drum rotates. In addition, a predetermined number of rpm can be set smaller than the upper speed region (from about 200 rpm to 35 rpm), which generates resonance in the washing machine. If the drum rotates at a higher speed in rpm than the upper speed region, noise and vibration can be noticeably increased, due to resonance. As a result, a predetermined rpm can be set from about 100 rpm to 170 rpm in this control method.

As a result, when the control part rotates the drum with a predetermined number of rpm, the laundry may be in close contact with the inner surface of the drum under the action of centrifugal force. The washing water supplied through the circulation line and the water supply line can be distributed during rotation of the drum. Distributed washing water can enter the drum and the laundry in close contact with the inner surface of the drum, so that the laundry can be uniformly moistened.

M.1.2 Moistening (S2135) of linen

After the water supplying step, the control part may start the laundry wetting step. In the laundry wetting step, the control part turns off the water supply valve. The control part provides the drum drive, and at the same time the washing water circulates when the circulation pump is driven. Although the wetting of the laundry is performed in the water supplying step, the water supply valve is turned off in the wetting step of the laundry, and the wetting of the laundry can be performed by driving the drum.

At the stage of wetting the laundry in such a program, the control part will perform a drum drive to perform wetting of the laundry. In this case, the control part may drive the drum in a rolling motion. Since the rolling motion drives the laundry inside the drum during rotation of the drum, the washing water often comes into contact with the laundry, and the laundry can be moistened smoothly.

When the laundry wetting step is performed, the control part classifies the laundry wetting step into the steps of the first and second laundry wetting. The drive in the stages of the first and second wetting of the laundry can be carried out in accordance with the movements of the drum for the drum, that is, the control part can control the movements of the drum in the stages of the first and second wetting of the laundry so that they differ from each other. The operation of the circulation pump is as follows.

In particular, in the first step of wetting the laundry, the control part may drive the drum in one of the rolling motion and / or step motion. The choice of movements of the drum drive can be determined according to the amount of laundry. Thus, if the amount of laundry inside the drum is less than a predetermined reference value, for example, if the amount of linen is small, the control part may drive the drum in accordance with the step motion. If the laundry amount is a reference value or more, the control part may drive the drum in accordance with the rolling movement.

As mentioned above, if the amount of laundry is small, the effect of the laundry falling at the step of the step movement can be improved. As a result, if the amount of laundry is small at the stage of the first wetting of the laundry, the stepwise movement performs the discharge of the laundry from the maximum discharge distance to ensure that the water is absorbed by the laundry. At the same time, if the amount of laundry is large in the first wetting step, a rolling movement is performed. This is due to the fact that the distance of the discharge of linen at the step of step movement cannot be large enough in the case of a large amount of linen.

Therefore, in the second wetting step of the laundry, the control part can drive the drum with a predetermined rpm, ensuring tight contact of the laundry with the inner surface of the drum, without falling under the influence of gravity, that is, in accordance with the filtering movement. Ultimately, the drum rotates with a given number of rpm, and the laundry may be in close contact with the inner surface of the drum, under the action of centrifugal force. The washing water supplied by the circulation pump is supplied to the laundry uniformly adhered to the inner surface of the drum, and thus, the laundry can be uniformly moistened.

In the second wetting step of the laundry, the control part may perform another movement of the drum drive after the filtering movement. For example, the control part may perform a rolling motion after a filtration motion. In this case, the filtration movement distributes the laundry to supply washing water to the laundry, and the rolling movement performs a rolling movement of the laundry to uniformly wet the laundry with washing water.

M.1.3 Heating (S2137)

After that, the control part starts the heating step. In particular, the control part drives the drum in accordance with one of the tipping and / or rolling and / or rocking movements in the drum during the heating step, including the heater provided in the tub, for heating the washing water contained in the tub.

In the washing machine, in accordance with the second embodiment, the gap between the drum and the tub is larger than the gap in the first embodiment. In this regard, when the washing water is heated by turning on the heater, the drum rotates, and only the washing water contained in the tub is heated, and not the washing water contained in the drum. As a result, compared with exposure to heated washing water, laundry contaminants cannot be uniformly removed in the washing step, which will be described later, due to the relatively low temperature of the laundry.

In this regard, the control method used in the washing machine, in accordance with the second embodiment, performs the drive of the circulation pump in the heating step to circulate the washing water. The heated washing water contained in the tub is re-fed to the top of the tub by means of a circulation pump, so that the laundry can be heated. However, at the heating stage, the circulation pump can be switched on alternately at a predetermined interval, instead of continuously turning on. In particular, during the heating step, the circulation pump can be controlled so that the turn-off time of the circulation pump is longer than the turn-on time. If the circulation pump is driven continuously during the heating step, or if the turn-on time of the circulation pump is longer than the turn-off time, such washing water not heated to a predetermined temperature will circulate and the washing water cannot be heated to the desired temperature.

If a heater is provided in the tank, it is important to turn on this heater so that it is not open on the surface of the water. If the heater is turned on when it is open, too much load will be applied to the engine and the heater may be damaged. As a result, if the heater is turned on during the heating step, a predetermined water level located at a distance from the heater (hereinafter referred to as the reference water level) can be maintained during the heating step. Thus, when the water level is lower than the initial level in the heating step, the control part turns off the heater. When the water level rises to a predetermined level or higher when re-supplying water, the control part turns on the heater again (hereinafter referred to as “cut-off”).

However, if the heating step uses the cut-off method in the washing machine according to the second embodiment, too much load can be applied to the heater, and the service life of the various circuits and the washing machine can be shortened.

Thus, the step of heating the washing machine, in accordance with the second embodiment, controls the heater and heats it, while driving the circulation pump, as mentioned above. As a result, the water level inside the tank may not be maintained regularly due to the inclusion of a circulation pump, but may constantly change to a predetermined degree. In this case, the water level inside the tank changes sufficiently, and may drop below the reference water level. In particular, if the water level inside the tank changes beyond the reference level, the heater can be turned on if the water level is outside the reference level, and can be turned off if the water level is below the reference value, so that on / off engine can be repeated continuously. Repeated turning on / off of the heater may place too much load on the heater and this can lead to a decrease in the service life of various circuits.

As a result, if the water level inside the tank drops and reaches a reference level during the engine drive during the heating step of the washing machine according to the second embodiment, re-supply of water can be performed to prevent the heater from turning on / off again. In particular, when the water level inside the tank drops below the reference level at the heating stage, the control part stops the drum drive and turns off the circulation pump. At this time, in addition, the water supply valve is opened to re-supply the water. The reason the drum and the circulation pump are turned off is that it is difficult to accurately determine the water level due to a change in the water level during the drive of the drum and the circulation pump. In extreme cases, it is possible to turn off the engine. At this time, re-supply of water can be performed for a predetermined time or until the water supply is performed so that the water level reaches the reference level or exceeds the reference level, according to the results of determining the water level. The specific water level during repeated water supply can vary in accordance with the type of program selected at the initial stage of heating.

M.1.3 Wash (S2139)

After the heating step, the control part may perform a washing step for driving the circulation pump during rotation of the drum. In the washing step, the movement of the drum drive for the drum can be appropriately selected among the movements of the drum in accordance with a program selected by the user. For example, the movement of the drum drive during the washing step can be determined similarly to one of the washing steps provided for in the above programs. The circulation pump can be turned on at a predetermined interval to circulate the washing water contained in the tank.

M.2 Cycle (S2150) rinse

After the completion of the washing cycle, after the above steps, the control part may start the rinse cycle. The general rinse cycle may include a rinse-spin step, a water supply step, a drum drive step, and a water discharge step. First, the control part starts rinsing-spinning by rotating the drum at a second rotation speed (2 rpm) (S2151), in the spinning step during rinsing, to remove moisture and residual detergent remaining in the laundry when the drum rotates at a frequency of approximately from 500 rpm to 700 rpm. The control part stops the drum and opens the water supply valve to supply rinse water to the tank. The rinse water level can be pre-set, in accordance with the program selected by the user, or in accordance with the manual installation of the user.

After the water supply, the control part performs the drum drive with the first rotation speed (1 rpm) at a predetermined interval. In the drum drive step, the control part controls the movement of the drum drive for the drum and removes washing means from the laundry. The control part at this stage can control the drum so that one of the drum tipping movements and / or step motion and / or grinding and / or rolling and / or rocking described above is performed.

Then, the control part stops the drum drive and drives the pump to drain the water, to discharge (S2153) the rinse water contained in the tank to the outside.

The rinse-spin cycle, the water supply step, the water supply step, the drum drive step, and the drain step described above may consist of one cycle, such as a rinse cycle. The control part may cycle once or several times, in accordance with the selected program or user choice. However, one cycle, such as a rinse cycle, may include a rinse-spin step. The second rotation speed in the rinse-spin step may correspond to from about 500 rpm to 700 rpm, as mentioned above, and the rotation speed of such a rinse-spin may correspond to the upper speed region (from about 200 rpm to 350 rpm ), in which the resonance of the washing machine occurs.

As a result, if the laundry located in the drum is not evenly distributed, the laundry distribution step for distributing the laundry can be performed, and then the rotation speed of the drum can be increased for rinsing-spinning. The laundry distribution step rotates the drum alternately with a predetermined rpm in a clockwise and / or counterclockwise direction. After the laundry distribution step, the eccentricity level of the drum is identified, if the eccentricity level of the drum is lower than a predetermined value, rinse-spin can be performed. If the eccentricity level is a predetermined value or more, the laundry distribution step may be repeated. Since the laundry distribution step is performed prior to the rinse-spin step, the time for the rinse cycle can be increased. In particular, since the laundry distribution step can be repeated, the rinse cycle time can be significantly increased, and the time taken by the rinse cycle cannot be accurately predicted.

As a result of this, in order to solve the problem described above, a rinse cycle control method will be described, allowing to reduce the total time consumed by the rinse cycle.

As shown in FIG. 21, the rinsing cycle of the washing machine in accordance with the second embodiment, may include a step for supplying washing water, a drum driving step (S2151) and a water draining step (S2153). Compared with the first embodiment, the rinse cycle in accordance with the second embodiment eliminates the rinse-spin step. Since the rinse-spin cycle is excluded, the rinse cycle time can be reduced to the same extent as the time in the rinse-spin step, and the laundry distribution step may be unnecessary, thereby greatly reducing the rinse cycle time associated with repeating the stage of distribution of linen. Although the exclusion of the rinse-spin step reduces the rinse cycle time, if such a rinse-spin step is intended to remove residual detergent by rotating the laundry at a relatively high speed, it would be difficult to sufficiently remove the remainder of the detergent.

As a result, in the rinse cycle control method according to the second embodiment, the drum rotates at a second rotation speed (2 rpm) for about 1-3 minutes, and does not stop at the water draining step. The second rotation speed is determined so that it is a predetermined speed, which allows you to fix the laundry on the inner surface of the drum, under the action of gravity, and so that it does not fall during rotation of the drum. The second rotation speed can be set so that the centrifugal force generated by the rotation of the drum is greater than the acceleration of gravity. In addition, the second rotation speed can be set lower than the upper speed region of the washing machine. If the drum rotates at a speed higher than the upper speed range, resonance can significantly increase noise and vibration. As a result, a second rotation speed can be set from about 100 to 170 rpm.

Ultimately, at the stage of draining, the drum is rotated at a predetermined speed, and thus, the laundry can be in close contact with the inner surface of the drum, under the action of centrifugal force, to remove residual detergent from the laundry. To compensate for the eliminated rinse-spin step, the drain step controls the drum to rotate at a second rotation speed to prevent deterioration of the rinse ability.

At the stage of rotation of the drum with a second rotation speed (a predetermined speed that allows the laundry to be in close contact with the inner surface of the drum), if the water contained in the tank is discharged, the entire drainage stage can be performed before the rinse cycle. Thus, even if water is discharged during the washing cycle, the step of rotating the drum with a predetermined number of rpm can be performed.

M.3 Cycle (S2170) Spin

The spin cycle in this program may be similar to the spin cycles of other programs, for example, the spin cycle of program A. Thus, an additional detailed description thereof will be excluded.

Program M described above can be used in a washing machine in accordance with a second embodiment. However, program M can also be used in the washing machine, in accordance with the first embodiment. Thus, program M can be applied to any washing machines in accordance with the first and second embodiments.

N. TIME MANAGEMENT OPTION

Next, a time management selection option will be described. Usually, after selecting a specific program, the operation of the selected program begins based on a given algorithm, and this operation ends within a given period of time. The operation time required to execute the program may be equal to the sum of the times required for the individual cycles constituting the program. Such a total operation time may be displayed on the display part 119.

In some circumstances, the operation time may be too long. For example, if the user must leave after 1 hour, and the set operation time is 1 hour and 20 minutes, the operation time is 20 minutes longer than the user needs. In contrast, due to substantial contamination, a washing operation performed within 1 hour and 20 minutes may not be sufficient to wash the laundry. To solve this problem, a washing machine and a method for controlling it are provided, which allow controlling time.

The washing machines described above may include a time management option provided for time management. Thus, the operation time of a specific program can be increased or decreased through part of the selection. In particular, the user can select the time saving option through the time management option. Alternatively, the user can select the intensive wash option through a time management option. If such selection options are not selected, the operation can be performed in accordance with the specified program. This choice of time management can be made before the start of the wash cycle and after the selection of the work program.

For example, when the user selects the time saving option, if the run time of the cotton washing program is 120 minutes, the required run time can be reduced, for example, to 100 minutes. When the user selects the intensive wash option, the operation time can be extended up to 140 minutes to ensure sufficient cleaning of heavily soiled items. There may be a certain difference between a predetermined time and the actually required time.

The required time of the wash cycle and / or rinse cycle can be changed in accordance with the choice of time saving option. Thus, the cycle, the required operating time of which is changed / adjusted, may be different, depending on the selected program. For example, in the case of a cotton washing program, a synthetic fabric program, and a blended program, it is important to improve the washing ability. In this regard, the required normal wash cycle time may be unchanged even if a time-saving option is selected. Thus, the possibility of adjusting the required time of one of the components of the rinse cycle can be considered.

In the rinse cycle, the water supply, the water drain and the spin are repeated. Rinsing can be performed twice, three times or four times. Spin can be performed in the same order of the spin cycle, with the number of rpm and the main spin time less than in the spin cycle. As a result, when the time saving operation is selected, the main spin cycle of the rinse can be omitted.

When a time saving option is selected, the step of determining the amount of laundry may be omitted, depending on the selected program. For example, when choosing a program for washing wool, fine fabric or sportswear, the amount of such special fabric is relatively small. If such garments become dirty, the user usually wants to wash them immediately. As a result, a large number of such types of laundry items are rarely erased in an operation of one program. For this reason, the step of determining the amount of laundry may be omitted when a program for washing wool, fine fabric or sportswear is selected.

In contrast, when the intensive wash option is selected, the number of rinses performed in the rinse cycle or the required wash cycle time can be increased, or both can be increased.

This time management option serves the purpose of a specific program and allows the user to conveniently manage time.

IV. DRIVE DRIVING IN MOVEMENT ACCORDING TO THE PROGRAM AND PROGRAM STAGE

The driving of the drum in accordance with each cycle of each program will be described below. As noted above, the movement of the drum drive includes a combination of the direction of rotation of the drum and the speed of rotation of the drum, and differs in the direction of discharge and the point of discharge of the laundry placed in the drum to compose various movements of the drum. Such movements of the drum drive can be embodied when controlling the engine.

Since the laundry is lifted by a hoist provided on the surface of the inner circumference of the drum, during rotation of the drum, the rotation speed and the direction of rotation of the drum are controlled to change the impact applied to the laundry. Thus, the mechanical force including the friction between the laundry, the friction between the laundry and the washing water, and the impact upon falling can be changed. In other words, the impact force or the friction level of the laundry can be changed for washing the laundry, and the distribution level of the laundry or the rolling level of the laundry can be changed.

As a result, the drive of the drum in motion may differ in accordance with each cycle containing different washing programs, and each specific step constituting each cycle so that the laundry can be processed using optimized mechanical force. In this regard, the washing efficiency can be improved. In addition, a single fixed movement of the drum drive may result in excessive washing time. The movement of the drum drive for each cycle will be described below.

Washing cycle

The washing cycle includes a step of determining the amount of laundry, a step for supplying water and a washing step. The water supplying step includes a step of activating the dissolution of the detergent to be performed to dissolve the detergent, and a step of wetting the laundry to wet the laundry. The step of activating the dissolution of the detergent and the step of wetting the laundry may be provided independently, separately from the water supplying step. A heating step may be further provided in accordance with each program.

1.1. Determining the amount of linen

The electric currents used to rotate the drum are measured to perform the step of determining the amount of laundry. In this case, when the drum rotates in a predetermined direction, the current consumption is measured, and the drum drive can be performed to perform one rotation movement, for example, a tipping movement, in the step of determining the amount of laundry.

1.2 Water supply

In the water supplying step, washing water is supplied together with the washing means, and a step of dissolving the washing means can be performed. To improve the efficiency of the cycle, the dissolution of the detergent can be completed efficiently at the initial stage of the water supply stage. To quickly dissolve the detergent in the washing water, a movement performed to apply a large mechanical force can be effectively used. Thus, a large mechanical force is applied to the washing water to effectively dissolve the detergent in the washing water. As a result, in the step of activating the dissolution of the washing means, the drum rotates in accordance with the step motion and / or the rubbing motion. As noted above, the step motion and the rubbing motion rotate the drum at a relatively high speed, with a sharp braking force applied to the drum to change direction, and greater mechanical force can be provided. The combination of step motion and rubbing motion is possible at this stage.

At the stage of activating the wetting of the laundry, it is important to dampen the laundry in the washing water mixed with the detergent. In this case, the movement of the drum drive may be a filtering movement. Alternatively, the filtration movement and the rolling movement can be performed sequentially. During the rolling movement, the laundry is continuously turned over, providing uniform contact of the washing water contained in the lower part of the drum with the laundry, and proper wetting of the laundry. During the filtration movement, the laundry is straightened during rotation of the drum, providing tight contact of the laundry with the surface of the inner circumference of the drum, while spraying the washing water in the drum, so that washing water can be discharged from the tank through the laundry and through holes of the drum, by centrifugal force. As a result, the filtration movement expands the surface area of the laundry and allows washing water to flow through the laundry. In this regard, the effect of a uniform supply of washing water to the laundry can be achieved. In addition, to use this effect, two different movements of the drum drive, that is, the filtering movement and the rolling movement, are successively repeated in the activation step of wetting the laundry. If the laundry amount is a predetermined value or more, the wetting effect of the laundry may be deteriorated by a rolling motion that has a relatively low drum rotation speed, and thus a tipping motion having a relatively high drum rotation speed may be implemented instead of the rolling motion.

However, the step of activating the dissolution of the detergent or the step of wetting the laundry, in the water supplying step, can be classified in accordance with the movement from the drum drive when the washing water is continuously supplied. As a result, it is difficult for the user to distinguish the steps described above in the water supplying step. From the user's point of view, it seems that the drum is driven in accordance with one of the rolling and / or tipping movements in the drum and / or the step motion and / or the rubbing motion in the water supplying step, or using a combination of two or more of these motions .

According to the type of fabric, programs can be developed to prevent damage to the fabric. In addition, in accordance with the program, programs can be used that are designed to suppress the formation of noise during washing, based on these programs. When the drum is driven in accordance with a movement allowing a greater mechanical force to be applied in the water supplying step, it can usually be difficult to prevent damage to the laundry fabric or generating noise. As a result, movements are provided at the water supply stages to reduce the generation of noise as much as possible, or to prevent tissue damage. In these programs, the dissolving effect of the washing agent and the moistening effect of the laundry are achieved in such a way that in these programs the drum drive can be performed with the swing movement, or the rolling movement time can be increased.

The swing motion can minimize the movement of the laundry inside the drum, compared to other movements, and can minimize tissue damage due to friction of the laundry and the friction between the laundry and the drum. In addition, the rolling motion induces a rolling motion of the laundry along the inner surface of the drum, and does not form a shock resulting from a sharp drop in the laundry.

If the dissolution of the detergent and the wetting of the laundry are performed in the water supplying step, a circulation step for circulating the washing water can be provided at least at a predetermined step. Such a circulation step may be implemented after the water supplying step or at a predetermined stage of the water supplying step.

1.3 Heating

At the heating step, a drum drive may be provided in motion to transmit heat generated since the heater provided in the tub heats the laundry water. At the heating stage, the drum is rotated in accordance with the tipping movement, which allows the drum to rotate constantly in a given direction. If the direction of rotation of the drum changes, a whirlwind is generated in the wash water, and the heat transfer efficiency may be deteriorated, if the laundry amount is less than a predetermined level of the laundry amount, the drum is driven by rolling. If the laundry amount is a predetermined level of the laundry amount or more, the drum is rotated with the tipping movement. The rolling movement allows sufficient heating of the laundry if the amount of laundry is less than a predetermined level. If the laundry amount is a predetermined level or more, a tumbling motion for rotating the drum at a relatively high speed may be appropriate.

1.4 Wash

The washing step may take the longest time in the washing cycle. In the washing step, the contamination of the laundry can be substantially removed, and the movement of the drum drive in the washing step can be a movement allowing the laundry to be moved in various ways. For example, the movement of the drum drive in the washing step may be one of, or a combination of, a step motion and / or a tipping motion and / or a rolling motion. This combination of movements allows you to apply great mechanical force to the linen. In particular, in the case of a small amount of laundry, a combination of these movements can be effective.

The drum drive in the washing step may be a combination of a filtration motion and a tipping motion. Such a drive of the drum in motion allows you to continuously supply washing water to the laundry, to improve the washing efficiency, and allows you to evenly apply mechanical force to the linen to improve the washing efficiency. This combination can be effective with a large amount of linen.

A heating step is provided before the washing step, and the washing water can be heated in the washing step to improve the washing efficiency. If the washing water is heated, the movements of the drum drive can be combined. For example, if the heater provided in the tank is turned on to heat the wash water, the drum may be driven in accordance with the movement of the drum drive without sudden braking.

As noted above, in programs designed to prevent tissue damage and to suppress the generation of noise, a movement allowing a relatively weak mechanical force to be applied to the laundry may be provided during the washing step. For example, in the washing steps of the above programs, a swing movement can be performed to reduce noise generation and prevent tissue damage. As a result, the running time of the swing movement can be longer than with other movements in the program. If the washing step is performed using only the swing motion, the washing efficiency may be impaired, and a movement having a greater mechanical force may be further provided. The operating time of a movement having a large mechanical force can be set shorter than for a movement having a weak mechanical force.

2. Rinse cycle

In the rinse cycle, the steps of water supply, drum drive and draining are repeated to wash away contaminants attached to the laundry or the remnants of the detergent. As a result, the movement of the drum drive of the rinse cycle can be a movement that allows you to generate an effect similar to grinding. For example, the movement of the drum drive in the rinse cycle may be a rubbing motion and / or a swing motion. Both the rubbing movement and the swinging movement have the effect of rubbing and continuously swaying the laundry in the wash water to improve the rinse ability.

When the drum drive in motion is performed in a rinse cycle, a circulation step for circulating the washing water contained in the tub to the inside of the drum and the filtration movement can be performed together. Thus, the washing water is sprayed in the drum and the laundry is rinsed with running water. The filtration movement generates a strong centrifugal force, which allows you to separate the detergent and the soiling of the laundry from the laundry, along with the washing water.

In the rinse cycle, the washing water can be drained together with the bubbles using the mechanical force exerted on the laundry during draining and / or intermediate spinning. As a result, the drum is driven with a step motion or a tipping motion. By dumping the raised laundry, the washing efficiency can be improved, and the bubbles can be removed without hindrance. The movement of the drum drive may vary according to the amount of laundry. Thus, in the case of a small amount of laundry, a step motion is performed to generate a maximum discharge distance. In the case of a large amount of laundry, the tipping movement is performed.

As noted above, in programs selected to prevent tissue damage or to suppress the generation of noise, a movement allowing a relatively weak mechanical force to be applied to the laundry may be provided in the rinse cycle. For example, a swing motion may be provided in rinse cycle programs. In the program selected to reduce the washing time, it is possible to reduce the rinse cycle time. For example, the filtering movement requires a relatively long period of time, and thus, the filtering movement can be eliminated at the stage of driving the rinse cycle drum, in the case of a program selected to reduce the total washing time.

3. Spin cycle

In the spin cycle, the drum rotates at a predetermined speed or higher to remove moisture contained in the laundry, and the spin cycle may include a step for unraveling the laundry, and an eccentricity measuring step for increasing the rotation speed of the drum to a certain rpm. The corresponding movement of the drum drive can be selected in accordance with the purpose of each stage. For example, it is preferable, at the stage of unraveling the laundry, to apply a relatively large mechanical force to the laundry. If a movement that allows you to apply a large mechanical force is provided before the rinse cycle, a fairly uniform movement having a weak mechanical force is sufficient. In addition, for accurate measurement of eccentricity, the movement of the drum drive, designed to rotate the drum in one direction continuously, may be appropriate in the step of measuring eccentricity.

V. NEW PROGRAMS

In the description of various programs, each program includes a washing cycle, a rinse cycle and a spin cycle. However, it is possible to exclude one cycle from each program, according to the user's choice. Thus, it is possible to exclude the washing cycle from program A (standard program) or to exclude the rinse cycle from program B (program for heavily soiled laundry), or to exclude the spin cycle from program C (fast boiling program). As an exception, one of the cycles provided for in each of the programs can be set as an auxiliary program. For example, the wash cycle in program F (the program for washing functional clothes) can be set as one new program. In this case, it may be called "washing functional clothes." Instead of the wash cycle, the rinse cycle or the spin cycle provided for in each program can be set as a new program.

Although the wash cycle, rinse cycle and spin cycle are described in a specific order to explain each program, such cycles of one program can be combined with cycles of another program to establish a new program. For example, the rinse cycle and the spin cycle of program A (standard program) can be combined with the wash cycle of program B (program for heavily soiled laundry) and set as a new program. Alternatively, each cycle can be taken from other programs. For example, the rinse cycle of program A (standard program) and the spin cycle of program M can be combined with the wash cycle of program B (program for heavily soiled laundry) and set as a new program. In this case, the steps for connecting the cycles can be adjusted or changed accordingly.

In addition, a new program can be implemented based on the amount of work and the condition of the laundry. In FIG. 22–25 illustrate the steps, effects, and conditions used to determine the movements for a standard program, a program with a strong movement (a program for heavily soiled laundry, a program for quick boiling, and a program for cold washing) and a program for weak movement (a program for color, fine linen or for wool). Based on the desired effects and states, drum movements can be chosen interchangeably between a standard program, a program with strong movements and a program with weak movements to form new programs. The properties of the present disclosure can be further applied to the drum movement of drying devices, which, for example, are disclosed in US Patent Publications Nos. 2009/0126222, 2010/0005680 and 2010/0162586, the entire disclosures of which are incorporated herein by reference.

Any reference in this description to “one embodiment”, “embodiment”, “exemplary embodiment”, etc., means that a particular property, structure or characteristic described in connection with the embodiment is included at least at least one embodiment of the invention. Such phrases appearing at different places in the description are not necessarily all referring to the same embodiment. In addition, when a specific property, structure, or characteristic is described in connection with any embodiment, it is assumed that it is within the competence of a person skilled in the art to fulfill such a property, structure, or characteristic in connection with other embodiments.

Although embodiments have been described with reference to many illustrative embodiments, it should be understood that various other modifications and embodiments may be devised by one skilled in the art that fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the parts of the components and / or arrangements for arranging a combination of a subject within the scope of the disclosure, drawings and appended claims. In addition to changes and modifications to component parts and / or arrangements, alternative uses will also be apparent to those skilled in the art.

Industrial applicability

According to the control method of the present invention, as noted above, various drum movements are provided, and the efficiency of the washing, rinsing and spin cycle can be improved.

In addition, according to the control method, various combinations of drum movements are provided based on the weight of the laundry, the type of laundry, the type of laundry detergent, the degree of soiling and the selected program.

Claims (11)

1. The method of controlling a washing machine having a drum with a rotation axis passing through the center of the drum, according to which the drum is rotated in the first movement,
rotate the drum at a first predetermined angular speed so that the reference point on the drum, initially set to its initial position, rotates around the axis of rotation, and the reference point is any point on the side of the drum;
changing the angular velocity of the drum when moving the reference point by a first predetermined distance around the axis of rotation of the drum;
carry out the rotation of the drum with a second predetermined angular velocity;
and
change the angular velocity of the drum when moving the reference point by a second predetermined distance around the axis of rotation of the drum so that the reference point of the drum returns to a position essentially representing the initial position. 2. The method according to claim 1, whereby the first and second predetermined angular velocities are substantially equal, and the first and second predetermined distances are substantially equal. 3. The method according to claim 1, whereby the first and second predetermined distances together are approximately 360 ° about the axis of rotation of the drum. 4. The method according to claim 1, according to which, when changing the angular velocity of the drum, reduce the angular velocity of the drum for a given period of time. 5. The method according to claim 1, whereby when changing the angular velocity of the drum, the rotation of the drum is stopped for a predetermined period of time. 6. The method according to claim 1, according to which, when changing the angular velocity of the drum, reverse torque is applied in the direction opposite to the direction of rotation of the drum to abruptly stop it. 7. The method according to claim 1, whereby the drum is additionally rotated in a second movement, wherein the drum is rotated with a third predetermined angular velocity that is less than the first and second predetermined angular velocities. 8. The method according to claim 7, according to which the drum is additionally rotated in a third movement, wherein the drum is rotated with a fourth predetermined angular velocity that is less than the first and second predetermined angular velocities and greater than the third predetermined angular velocity. 9. The method according to claim 1, whereby the drum is additionally rotated in a second movement, wherein
rotate the drum in the first direction with a third predetermined angular velocity;
change the angular velocity of the drum when moving the reference point to a third predetermined distance around the axis of rotation of the drum;
rotate the drum in a second direction, which is opposite to the first direction, with a fourth predetermined angular velocity so that the reference point of the drum moves through the initial position; and
again change the angular velocity of the drum when moving the reference point for a fourth predetermined distance around the axis of rotation of the drum. 10. The method according to claim 9, whereby the first and second predetermined angular velocities are substantially equal to each other, and the third and fourth predetermined angular velocities are substantially equal to each other, and wherein the first and second predetermined angular velocities are greater than the third and fourth predetermined angular velocities. 11. The method according to claim 1, whereby the drum is additionally rotated in a second movement, wherein
rotate the drum with such a third predetermined angular velocity that the first centrifugal force generated by the rotation of the drum causes the laundry to be fixed on the inner surface of the drum;
rotate the drum with such a fourth predetermined angular velocity that the second centrifugal force generated during rotation with the rotation speed of the drum is insufficient to fix the laundry on the inner surface of the drum; and
the rotation of the drum is resumed with such a third predetermined angular velocity so that the laundry returns back to the inner surface of the drum and is fixed on the inner surface of the drum.

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