KR102155357B1 - Electrical Parking Brake System Using Electrical Switch Module and Operating Method thereof - Google Patents

Abstract

The present invention relates to an electronic parking brake (EPB) of a vehicle, which is operated by a user's touch input and visually informs the user of the vehicle status using a UI (User Interface or icon) output on the screen. The present invention relates to an electronic switch module, an electronic parking brake system using the same, and an operation method thereof.
According to an embodiment of the present invention, there is provided a switch module for implementing a touch screen-type user interface for an electrical parking brake (EPB) operating system, comprising: a case located at the outermost side of the switch module; A driving PCB seated in the case; A display unit for outputting a signal of the driving PCB; A sensor unit sensing a touch input and transmitting the detected data to the driving PCB; And a biometric information acquisition module for recognizing user identification information during the touch input and transmitting the recognized data to the driving PCB.
Further, according to an embodiment of the present invention, in a method of operating an EPB (Electrical Parking Brake) system using a touch screen type electronic switch module, (a) an EPB application switch and an EPB release switch on the screen of the electronic switch module. Is displayed, selecting one of the EPB application switch and the EPB release switch; (b) displaying an operating state of the EPB according to the input on the screen; And (c) displaying the operation completion state of the EPB on the screen. It provides a method of operating an EPB system using an electronic switch module.

Description

Electronic Parking Brake System Using Electrical Switch Module and Operating Method thereof

The present invention relates to an electronic parking brake (EPB) of a vehicle, which is operated by a user's touch input and visually informs the user of the vehicle state using a UI (User Interface or icon) output on the screen. The present invention relates to an electronic switch module, an electronic parking brake system using the same, and an operation method thereof.

The parking brake of a vehicle is a device that serves to brake the rear or front wheel of a vehicle to maintain its state after parking/stopping the vehicle.

Parking brake is usually applied to the parking cable when the driver pulls the brake lever, and the applied force is evenly distributed to the brake mechanism mounted on the wheel through an equalizer, through which the brake mechanism restrains the wheel and the user intends This prevents the vehicle from moving without accident.

Among the parking brakes, the electronic parking brake is a brake system used as a substitute for a mechanical handle lever (side brake) or a foot pedal, and parking brake is possible using simple button operation and motor power. In particular, since it can be linked with AVH (Automatic Vehicle Hold, hereinafter referred to as Auto Hold), it can be automatically activated and released when stopping, such as waiting for a signal, and the driver's safety and convenience are not pushed to the rear even when trying to start again after stopping on a slope. Can improve. In addition, there is an advantage that can be of great utility to drivers who lack strength, quickness, and attention.

The electronic parking brake of the prior art implements a function by mounting a mechanical switch in order for a user to operate.

1 is a view showing a mechanical switch module 1 of an electronic parking brake according to the prior art.

A typical mechanical switch module 1 includes a parking brake On/Off switch that can be operated simply by finger manipulation as shown in FIG. 1. When the On/Off switch is pulled while the vehicle is stopped, the parking brake mechanism restrains the wheel and prevents the vehicle from moving.

In addition, even if you accidentally release your foot from the brake, it is equipped with an Auto Hold switch that catches the car so that it does not move back and forth by the brake, but when you step on the accelerator pedal, the brake is automatically released.

Such a mechanical switch module 1 is widely used in commercial vehicles such as passenger cars, buses, and trucks in terms of more convenient switch operation and reducing driver fatigue than a method using a side brake as a parking brake.

However, in spite of the above advantages, in the case of adding a switch input function, for example, an auto hold function or another function, in the case of adding a switch input function, the structure of the module becomes complex and the manufacturing cost increases. Once the module is mounted, it is difficult to add or change functions.

In addition, the mechanical switch module 1 has a low durability, and thus, there is a significant problem of damage and malfunction of the module 1 when the user applies excessive force to operate it.

In addition, as the number of functions is added, the volume of the module itself increases, so there is a problem in that space efficiency decreases.

In order to solve the above problems, in one embodiment of the present invention, an electronic touch switch module is provided to maintain the convenience of the electronic parking brake in the prior art such as ease of operation, but secure the ease of adding a switch function and To increase the space efficiency of

According to an embodiment of the present invention, there is provided a switch module for implementing a touch screen-type user interface for an electrical parking brake (EPB) operating system, comprising: a case located at the outermost side of the switch module; A driving PCB seated in the case; A display unit for outputting a signal of the driving PCB; A sensor unit sensing a touch input and transmitting the detected data to the driving PCB; And a biometric information acquisition module that recognizes user identification information for security authentication during the touch input and transmits the recognized data to the driving PCB.

According to an embodiment, the biometric information acquisition module may include a fingerprint information acquisition unit that acquires user fingerprint information and a pattern recognition unit that recognizes rapid pattern input.

According to an embodiment, an EPB comprising a cover glass formed of a hollow portion to protect the upper surface of the switch module and make the display portion visible to the naked eye, and formed with a hollow portion to directly touch the biometric information acquisition module For electronic switch modules can be provided.

Meanwhile, the driving PCB includes an image control function, and the image may be a vehicle parking icon.

In addition, the sensor unit may correspond to any one of a pressure-sensitive type, a capacitive type, a resistive type, an ultrasonic type, and an infrared type.

Further, according to an embodiment of the present invention, in a method of operating an EPB (Electrical Parking Brake) system using a touch screen type electronic switch module, (a) an EPB application switch and an EPB release switch on the screen of the electronic switch module. Is displayed, selecting one of the EPB application switch and the EPB release switch; (b) displaying an operating state of the EPB according to the input on the screen; And (c) displaying the operation completion state of the EPB on the screen. It is possible to provide a method of operating an EPB system using an electronic switch module.

According to an embodiment, (d) after the step (a), a user authentication step may be included.

At this time, the user authentication step may be executed only when the brake is released by pressing the EPB release switch when the first user starts the vehicle,

(e) After the step (d), it may further include the step of switching the screen to the induction mode and confirming the input of the selected switch. Here, the method of checking the input of the switch may be performed by flicking the screen or dragging in one direction.

On the other hand, (f) when the application switch is dragged in the step (a), the screen is switched to the induction mode, and the EPB plays the role of a driving brake, and the screen is in an operating state. It may also include the step of indicating an emergency stop.

In addition, it may further include a third icon excluding the EPB application switch and the EPB release switch, wherein the third icon is an auto hold switch or an environment setting menu for changing the user interface. I can.

In the present invention, by providing an electronic touch switch module, it is possible to facilitate the addition and change of switch functions. By providing an intuitive UI, it is easy for the user to recognize the switch function and the operation is convenient.

In addition, by providing an electronic touch switch module, a compact EPB operation switch module is pursued. As an additional effect of this, it is possible to reduce the manufacturing cost of the switch module and to improve the interior of the vehicle.

In addition, by adding a user authentication function as a security related technology, it is possible to prevent accidents that may be caused by brake manipulation by a user other than a driver.

1 is a view showing a mechanical switch module of the electronic parking brake according to the prior art.
Figure 2 is a perspective view of the electronic switch module according to an embodiment of the present invention applied to a gearbox.
3 is an exploded perspective view of the electronic switch module according to an embodiment of the present invention.
FIG. 4 is a diagram illustrating operations of an EPB when an EPB application switch is selected together with a configuration of a UI for operating an EPB function according to an embodiment of the present invention.
FIG. 5 is a diagram illustrating operations of an EPB further including a user authentication step and an induction mode display switching step in FIG. 4;
6 is a diagram illustrating operations of an EPB when an EPB release switch is selected together with a configuration of a UI for operating an EPB function according to an embodiment of the present invention.
7 is a diagram showing an emergency stop function according to an embodiment of the present invention.
8 is a view showing an auto hold function according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, detailed descriptions of known configurations will be omitted, and detailed descriptions of configurations that may unnecessarily obscure the subject matter of the invention will be omitted.

Before describing the following description, it should be noted that "fastening" referred to herein may mean all physical connections such as attachment, mounting, contact, adjacency, bonding, etc. between one member and another member (eg, EPB system and wheel). . In addition, "release" referred to herein may mean that a physical connection is no longer made, or even if a physical connection is made, the power to achieve the fastening is no longer provided.

2 is a perspective view of an electronic switch module according to an embodiment of the present invention applied to a gearbox, and FIG. 3 is an exploded perspective view of the electronic switch module according to an embodiment of the present invention.

Referring to FIG. 2, the electronic switch module 10 for Electrical Parking Brake (EPB) according to an embodiment of the present invention includes a case 11 located at the outermost part of the switch module 10; A driving PCB 12 seated in the case 11; A display unit 13 for outputting a signal from the driving PCB 12; A sensor unit 14 that senses a touch input and transmits the sensed data to the driving PCB 12; And a biometric information acquisition module 15 that recognizes user identification information for security authentication when the touch input is touched and transmits the recognized data to the driving PCB 12.

In addition, the EPB electronic switch module 10 according to an embodiment of the present invention may include a cover glass 16 that protects the upper surface of the switch module 10 and allows the display unit 13 to be visually checked. have.

The electronic switch module 10 of the present invention can replace the mechanical switch module 1 of the prior art. Referring to FIG. 2, the electronic switch module 10 of the present invention can be located on the left side of the shift lever in the gearbox. have. However, the present invention is not limited thereto, and may be placed anywhere, such as a dashboard, as long as the user can easily control it.

The electronic switch module 10 is a touch screen type, which is easy for a user to access, and provides an intuitive and beautiful UI to the user through the screen. It should be noted that each icon constituting the UI is not limited to what is shown in the following description and drawings, and may be variable depending on how the user sets the icon.

Hereinafter, each element constituting the present invention will be described in detail.

Referring to FIG. 3, the electronic switch module 10 of the present invention includes a case 11, a driving PCB 12, a display unit 13, a sensor unit 14, and a biometric information acquisition module 15 as described above. , It may include a cover glass (16), an upper frame (17).

First, the case 11 of the present invention is located at the outermost side of the switch module 10 and may serve to determine the overall shape of the switch module 10. As shown in FIG. 3, it is preferable that the rim is rounded in a substantially rectangular shape, but may be formed in various designs such as a circle or an oval shape. Meanwhile, the case 11 of the present invention may be integrally formed with a connector that can be physically or electrically connected to a gearbox, and accordingly, it may be effective in terms of assembly productivity. Furthermore, in addition to protecting the lower region of the switch module 10, the case 11 may further include a separate upper case 17 to protect the upper region of the switch module 10 from external impact. In addition, the overall assembly of the switch module 10 may be facilitated by accommodating components such as the driving PCB 12 and the display unit 13 inside the case 11 and the upper case 17.

The driving PCB 12 of the present invention may be configured to be electrically connected to the display unit 13, the sensor unit 14, the biometric information acquisition module 15, the EPB system controller, and the vehicle CPU. The driving PCB 12 analyzes and calculates the received user's touch input, and then transmits the result to the display unit 13 and outputs the result.

Here, the driving PCB 12 includes an image control function, and the image may be a vehicle parking icon. The driving PCB 12 converts the image output on the screen into another image according to the user's touch input so that the user can grasp the operation state of the EPB system. The converted image will be described in detail in the EPB system operation method below.

Further, the driving PCB 12 of the present invention may store the state value (or real-time data) of the EPB system. The state value is compared with the memory of the EPB system controller so that each operation of the EPB system can be determined and executed. Accordingly, the safety concept in accordance with ISO26262 (International Standard for Vehicle Functional Stability) can be strengthened. For example, when the current state value of the EPB system indicates brake engagement, it is compared with the memory of the EPB system controller to determine whether or not the brake engagement is securely established.

Meanwhile, the display unit 13 of the present invention receives and outputs an operation result value of the driving PCB 12, and may perform a function of displaying a vehicle parking icon. The display unit 13 may be formed of anything that can image data received from the driving PCB 12, such as an LCD or AMOLED.

The UI provided to the user by the driving PCB 12 and the display unit 13 relates to a vehicle parking icon, for example, an APPLY switch, a RELEASE switch, and an Auto Hold switch. Can include. In addition, a menu switch may be included so that the user can freely change the background color and UI design of the screen. Accordingly, even if other functions related to the parking brake are added, since the switch module 10 simply needs to add/change an icon, the volume of the module itself does not increase, thereby increasing the space efficiency inside the vehicle.

The sensor unit 14 of the present invention may serve to receive a user's touch input and transmit sensing information to the driving PCB 12. Types of the sensor unit 14 mounted on the switch module 10 may be a pressure-sensitive (or resistive) type, a capacitive type, an ultrasonic type, or an infrared type sensor.

Hereinafter, characteristics of each sensor type will be described.

In the case of the pressure-sensitive (or resistive) type, it is a sensor that senses the pressure between the electrodes, and detects the change in current and resistance generated when two transparent conductive layers (ITO metal layers) of the screen touch each other to determine the touch input. In the case of the pressure-sensitive sensor unit, since the sensor directly receives the touch input, the cover glass 16 may be located at the rear of the sensor unit. In the case of the pressure-sensitive type, there is an advantage of being able to recognize a touch input even when the user is wearing gloves.

The capacitive type is equipped with a signal-applying electrode (transmitter electrode) and a GND electrode (receiver electrode) on a substrate, and detects a change in capacitance that occurs when a body or a specific object is in contact to determine a touch input. In the case of the capacitive sensor unit, since static electricity is used, the cover glass 16 may be located at the top of the switch module 10 and the sensor may be located at the rear of the cover glass 16. In FIG. 3 of the present invention, a case of using a capacitive sensor unit is shown.

The ultrasonic method uses the characteristics of ultrasonic waves propagating along the surface and the propagation characteristics of sound.If an object such as a finger blocks the direction of the surface wave, it is not received by the receiver of the sensor. At this time, the position can be recognized by calculating the blocked point. There will be.

Infrared type is a method that utilizes the linearity of infrared rays and utilizes the property of blocking or refracting light when hitting an obstacle. This is a method of reading the coordinates of the blocked position when an object such as a finger blocks light after placing the light emitting element and the light receiving element around the panel to face each other.

The sensor unit 14 may be freely selected and designed from the above types, and a hybrid-type, for example, a pressure-sensitive type and a capacitive type sensor may be provided at the same time.

When a touch input is received, the biometric information acquisition module 15 of the present invention may simultaneously recognize user identification information and transmit the recognized data to the driving PCB 12. In particular, the biometric information acquisition module 15 of the present invention may be formed in a panel-type to obtain biometric information from a plurality of icons displayed on the screen of the switch module 10. For reference, it should be noted that'recognition' here may mean acquiring, acquiring, or receiving data to discriminate and discriminate.

Meanwhile, user information to be identified by the biometric information acquisition module 15 of the present invention may correspond to fingerprint recognition. Furthermore, it is possible to further increase security by performing the security authentication before starting the vehicle by interlocking with not only fingerprint recognition but also a smart key system in the vehicle.

More specifically, the biometric information acquisition module 15 of the present invention may include a fingerprint information acquisition unit 15a and a pattern recognition unit 15b. The fingerprint information acquisition unit 15a precisely acquires and discriminates fingerprint information for inputting required fingerprint information and user authentication when initial setting of the biometric information acquisition module 15. The pattern recognition unit 15b may similarly play a role of acquiring and discriminating a biometric signal for inputting necessary biometric information and user authentication, and in particular, can recognize a user's touch or pattern. For example, when a user drags along a grid-shaped locking pattern displayed on the screen, the pattern recognition unit 15b recognizes it.

The pattern recognition unit 15b is sufficient even if the sensing resolution is smaller than that of the fingerprint information acquisition unit 15a for quick motion control and relatively inferior precision. In terms of cost reduction, it is rather low if it can detect the user's quick touch input. It may be advantageous to have a pattern recognition portion 15b with precision. Here, the user can set to identify the user by selecting either one of the fingerprint information acquisition unit 15a or the pattern recognition unit 15b, or by selecting both the fingerprint information acquisition unit 15a and the pattern recognition unit 15b. . If the user's fingerprint is not clear and it is difficult to collect, or if an error occurs in fingerprint recognition due to other reasons, user authentication is possible only by entering a pattern through the pattern recognition unit 15b.

The biometric information acquisition module 15 serves as a means of security authentication and enables the driving PCB 12 to issue a command for fastening or releasing a parking brake when a preset user's identification information is recognized. When the identification information of is recognized, the driving PCB 12 does not react. At this time, you can warn that the EPB system is not working properly. Therefore, if the driver is not a registered driver, it is possible to prevent vehicle theft by not releasing the fastening of the parking brake.

In addition, it can be cumbersome if security authentication of the biometric information acquisition module 15 is performed each time, and the load on the system can be increased.Therefore, security authentication is set to proceed only when the brake is released by pressing the EPB release switch when the first user starts the vehicle. May be. In addition, if there is no movement within minutes after parking/stopping the vehicle, it can be set to proceed with security authentication again.

Finally, the switch module 10 of the present invention may include a cover glass 16 that protects from external impact. The cover glass 16 is preferably formed of a transparent material so that the image of the display unit 13 is transmitted. In addition, since the cover glass 16 is treated with a scratch-resistant coating or a dielectric is coated on the surface of the cover glass 16, it is possible to prevent the risk of image quality degradation.

A hollow portion 16' may be formed on one side of the cover glass 16 according to an embodiment of the present invention to directly touch the biometric information acquisition module 15, wherein the hollow portion 16' is a touch input It may be formed in a circular, oval, or polygonal shape so as to guide the C, and may be formed in plural number as shown in Figure 3. The user can directly input user identification information through the hollow part 16'.

Since the electronic switch module 10 of the present invention described above has a compact structure and all operations are processed as electrical signals, the total operation time is guaranteed and is completely compatible with the existing mechanical switch module 1 Or it will provide better performance. That is, when the EPB system is operated using the existing mechanical switch module 1, if it takes 1.5 sec until the brake is engaged or released, the electronic switch module 10 of the present invention takes less than 1.5 sec. Can be guaranteed.

Next, a method of operating an EPB (Electrical Parking Brake) system using a touch screen type electronic switch module will be described with reference to FIGS. 4 to 8. 4 to 8 may be a view showing a part of a screen displayed on the screen of the electronic switch module 10 of the present invention.

FIG. 4 is a diagram illustrating operations of an EPB when an EPB application switch is selected together with a configuration of a UI for operating an EPB function according to an embodiment of the present invention. FIG. 5 is a diagram illustrating operations of an EPB when the step of switching the display to the fingerprint recognition function and the guidance mode in FIG. 4 is further included.

And Figure 6 is a view showing the operation of the EPB when the EPB release switch is selected together with the configuration of the UI for the operation of the EPB function according to an embodiment of the present invention, Figure 7 according to an embodiment of the present invention It is a diagram illustrating an emergency stop function, and FIG. 8 is a diagram illustrating an AUTO HOLD function according to an embodiment of the present invention.

The operating method of the EPB system using the electronic switch module according to an embodiment of the present invention is (a) when the EPB application switch and the EPB release switch are displayed on the screen of the electronic switch module 10, the EPB application switch and the EPB Selecting any one of the release switches; (b) displaying an operating state of the EPB according to the input on the screen; And (c) displaying the operation completion status of the EPB on the screen.

First, referring to FIG. 4, a switch for operating an EPB system is shown. For reference, the auto hold switch displayed at the bottom of the screen will be described later.

The EPB application switch is a switch that inputs a command that causes the brake of the EPB system to be fastened to the driving element of the vehicle, for example, the wheel of the vehicle. The EPB release switch allows the brake of the EPB system to be released from the driving element of the vehicle. It refers to a switch to enter commands.

4 shows an operation state of the EPB system when the vehicle is parked and stopped after driving on the road. As shown in the first display screen S410, since the parking brake is released during the first driving, the EPB release switch may be applied.

When the user selects the EPB application switch when trying to park/stop the vehicle, the EPB is locked by the input of the selected switch, and the screen displays the APPLYING operating state as shown in the second display screen (S420). I can. Since it takes about 0.5sec to 2sec to connect the EPB system, it is to display the operating status on the screen so that the user can recognize it.

When the EPB system is fastened after a predetermined time passes in the driving process of the brake fastening mechanism, the APPLYIED operation completion state may be displayed on the screen as shown in the third display screen S430.

The sequence of steps above can be accomplished by a single switch selection by the user.

In addition, since the fastening of the parking brake can be completed by simply clicking the icon on the touch screen, the operation is very simple compared to the manual side brake or the mechanical switch module shown in FIG. 1.

In addition, since the position of each switch on the screen of the switch module 10 can be changed to a desired design through a UI setting change, there is an advantage in that the beauty of the interior space of the vehicle can be added.

In the above, the APPLY operation for brake engagement of the EPB system has been described. The RELEASE operation for releasing the brake of the EPB system can be performed in the reverse order of the APPLY operation, and in the end, the display screen of the final screen consists of the EPB application switch and the EPB release switch alternately depending on the vehicle driving situation and the user's selection Can be displayed.

Meanwhile, referring to FIG. 5, a display screen including a user authentication step is added. Here, the user authentication step may be performed by including the biometric information acquisition module 15 in the switch module 10 as described above. As described above, simple fingerprint recognition or pattern input is preferable, but is not limited thereto. For example, it may be linked with security authentication of a smart key for a vehicle or may be authenticated in connection with voice recognition. In addition, in the exemplary embodiment of the present invention described with reference to FIGS. 4 to 8, a user authentication method by fingerprint recognition is handled for convenience, but it should be noted that the present invention is not limited thereto.

As shown in Fig. 5, when the user touches the application switch with a finger, the fingerprint recognition method switches to the EPB fastening state when it matches the preset user information, and switches to the EPB fastening state when it does not match the preset user information. It doesn't work.

Meanwhile, the user authentication step is set to be executed only when the brake is released by pressing the EPB release switch when the first user starts the vehicle, thereby reducing the hassle of requiring security authentication each time.

In addition, a method of operating an EPB system according to an embodiment of the present invention may include switching the screen to an induction mode and confirming an input of a selected switch. This prevents malfunction of the switch module 10 due to unintended contact.

Here, the method of checking the input of the switch may be performed by flicking the screen or dragging in one direction. Flick refers to contacting a contact means such as a finger to the screen multiple times, and drag refers to sweeping down while the finger is in contact with the screen in the direction of an arrow as shown in FIG. 5. At this time, one or more contact means to the screen may be used. For example, you can check the input of the switch by flicking or dragging with two fingers.

A brake fastening method according to an embodiment of the present invention shown in FIG. 5 will be described in more detail along a series of processes. 5 shows the operation of converting the brake of the EPB system into a fastened state when the brake is released. When the vehicle is driven for the first time, a UI indicating that the brake is released (S510) is displayed on the screen as in the first display screen, and the user When the EPB application switch is selected, the display is switched to the application induction mode 630 through the user authentication step (S520). Here, according to the user's confirmation input, the APPLYING operation in progress state (S540) indicating that the EPB system is being signed is displayed, and when the release is completed after a predetermined time elapses, the APPLIED operation completion state (S550) is displayed.

6 shows an operation of releasing the brake of the EPB system when it is engaged, unlike FIG. 5.

First, when the vehicle is parked or stopped, a UI indicating the parking and stopping status (S610) is displayed on the screen as in the first display screen, and when the user selects the EPB release switch, the user enters the release induction mode (S630) through the user authentication step (S620). The display is switched. Here, according to the user's confirmation input, a RELEASING operation in progress state (S640) indicating that the EPB system is being released is displayed, and when the release is completed after a predetermined time elapses, the RELEASED operation completion state (S650) is displayed.

Finally, a method of operating an EPB system according to another embodiment of the present invention will be described with reference to FIGS. 7 and 8. 7 is a diagram illustrating a vehicle emergency stop function according to an embodiment of the present invention, and FIG. 8 is a view showing an auto hold function according to an embodiment of the present invention.

Referring to FIG. 7, in the operation method of the EPB system according to an embodiment of the present invention, when the application switch is dragged in step (f), that is, step (a), the screen is switched to the induction mode. In step S720, while the EPB performs the role of a driving brake, a step S730 of displaying an emergency stop state on a screen may be included.

The vehicle emergency stop function is a function that replaces the driving brake using the EPB system and stops the vehicle while driving when the driving brake is not properly operated due to foreign substances stuck in the foot pedal.

The brake fastening described with reference to FIGS. 4 and 5 is a function that operates when the vehicle is parked/stopped, that is, when the vehicle speed is close to zero, whereas the vehicle emergency stop function is a function where the vehicle speed is within or outside the specified speed in the city area. It is a function that can be operated at the driving speed. As shown in FIG. 7, the EMERGENCY state can be displayed instead of the APPLYING state.

Next, in the operating method of the EPB system of the present invention, a UI further including a third icon excluding the EPB application switch and the EPB release switch described above may be provided.

Since the electronic switch module is used, a third icon for performing a function desired by the user can be added to the screen of the switch module 10 by changing UI settings. As an embodiment, the third icon may be an auto hold switch, which will be described in detail with reference to FIG. 8.

When a driver waits for a signal while driving or wants to rest his foot from pedaling on a road with severe congestion, conventionally, it is necessary to put the gear in neutral or apply a parking brake or change to a parking mode if the road is inclined. The auto hold function is a device to alleviate such inconvenience, and the parking brake is engaged as soon as the vehicle stops by stepping on the driving brake in the driving state. On the contrary, when starting, the parking brake is released by simply stepping on the accelerator pedal, thus increasing the driver's convenience.

In FIG. 8, an auto-hold switch is displayed as a third icon. The first display screen shows a state in which the auto-hold switch is not applied (S810), and the second display screen is a user authentication step for applying the auto-hold switch (S820). It shows the appearance of going through. If it matches the preset user information, the auto hold switch may be applied to display the lock screen as shown on the third display screen S830.

Meanwhile, unlike the above, the third icon according to an embodiment of the present invention may be a configuration menu for changing a user interface. Through the environment setting menu, functions of changing the background color of the screen, changing the design of icons, and adding icons can be performed so that the degree of freedom and sensitivity of the vehicle driver can be affected.

As a result, according to the electronic switch module and the operating method of the EPB system using the electronic switch module according to an embodiment of the present invention, it is possible to facilitate the addition and change of the switch function, and it is possible to pursue a compact switch module. As an additional effect of this, it is possible to reduce the manufacturing cost of the switch module and to improve the interior of the vehicle.

In addition, by providing an intuitive UI, it is easy for the user to recognize the switch function and the operation is convenient. In addition, as a security-related technology, by adding a user authentication function, it is possible to prevent accidents caused by manipulations different from the driver's intention while driving the vehicle.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

1: mechanical switch module
10: electronic switch module
11: case
12: drive PCB
13: display
14: sensor unit
15: biometric information acquisition module
15a: Fingerprint information acquisition unit
15b: pattern recognition unit
16: cover glass
16': hollow part
17: upper case

Claims (14)

As a switch module for implementing a touch screen user interface for EPB (Electrical Parking Brake) operating system,
A case located at the outermost side of the switch module;
A driving PCB seated in the case;
A display unit for outputting a signal of the driving PCB;
A sensor unit sensing a touch input and transmitting the detected data to the driving PCB; And
A biometric information acquisition module that recognizes user identification information for security authentication during the touch input and transmits the recognized data to the driving PCB,
The driving PCB performs an image control function of a vehicle parking icon displayed on the display unit,
The vehicle parking icon includes an EPB application switch and an EPB release switch displayed on the display unit,
When the EPB application switch and the EPB release switch are displayed on the display unit, one of the EPB application switch and the EPB release switch may be selected,
The electronic switch module for EPB, characterized in that the display unit further comprises and displays a third icon excluding the EPB application switch and the EPB release switch. The method of claim 1,
The biometric information acquisition module is an EPB electronic switch module including a fingerprint information acquisition unit for acquiring user fingerprint information and a pattern recognition unit for recognizing a rapid pattern input. The method of claim 1,
EPB electronic switch module including a cover glass formed of a transparent material to protect the upper surface of the switch module and to be able to check the display unit with the naked eye, and a cover glass formed with a hollow portion to directly touch the biometric information acquisition module on one side . delete The method of claim 1,
The sensor unit EPB electronic switch module, characterized in that any one of a pressure-sensitive type, capacitive type, resistive type, ultrasonic type, infrared type sensor. In the operating method of the EPB (Electrical Parking Brake) system using an electronic switch module implementing a touch screen type user interface (User Inerface),
(a) when the EPB application switch and the EPB release switch are displayed on the screen of the electronic switch module, selecting one of the EPB application switch and the EPB release switch;
(b) displaying an operating state of the EPB according to an input on the screen; And
(c) displaying the operation completion status of the EPB on the screen,
A method of operating an EPB system using an electronic switch module, further comprising and displaying a third icon excluding the EPB application switch and the EPB release switch. The method of claim 6,
(d) After the step (a), a method of operating an EPB system using an electronic switch module, comprising a step of user authentication. The method of claim 7,
The operation method of the EPB system, wherein the user authentication step is executed only when the brake is released by pressing the EPB release switch when the first user starts the vehicle. The method of claim 7,
(e) after the step (d), the operation method of the EPB system using the electronic switch module, comprising the step of switching the display to the induction mode and confirming the input of the selected switch. The method of claim 9,
The method of checking the input of the switch is a method of operating an EPB system using an electronic switch module, characterized in that the screen is flicked or dragged in one direction. The method of claim 6,
(f) When the application switch is dragged in step (a), the screen is switched to display in induction mode,
And displaying an emergency stop on the screen as a state in which the EPB is in operation while the EPB plays the role of a driving brake. delete The method of claim 6,
The third icon is an operation method of an EPB system using an electronic switch module, characterized in that an auto hold switch. The method of claim 6,
The third icon is a method of operating an EPB system using an electronic switch module, characterized in that the environment setting menu for changing the user interface.

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