JP4340875B2 - Power window control method and power window control device - Google Patents

Description

  The present invention relates to a power window control method and a power window control device. More specifically, the present invention relates to a control method and control device for a power window mounted on a vehicle such as a vehicle having a closed room, and the minimum window opening necessary for indoor ventilation while reliably preventing the entry of wind and rain into the room. The present invention relates to a control method and a control apparatus that enable operation.

  In general, the opening and closing operation of the power window is performed by two methods of “manual” and “auto” by an operation switch provided inside the driver's seat door, for example, in a driver's seat window of a vehicle such as an automobile. Can do. In the manual operation, the window is opened and closed only while the operation is being performed, and in the automatic operation, the window is continuously opened and closed even after the switch is released after performing the operation.

  These two operation methods can be used properly depending on the situation. Especially when performing ventilation in the vehicle, that is, when opening the window very slightly, a manual operation is performed for a moment to set the desired micro window opening. Is done.

  However, it is not easy to obtain a “desired minute window opening” by a single operation. This is because the opening / closing speed of the window is constant and the opening / closing speed is fast, so that it often passes a desired window opening degree. In such a case, the opening operation is repeated again after returning the window to the closed state, but there is a safety inconvenience that the attention of the driving operation is hindered during that time.

  <First Conventional Technology> Focusing on such a background, Patent Document 1 discloses a technology in which the window opening / closing speed during manual operation is “slower” than the window opening / closing speed during automatic operation. According to this technology, the window opens and closes “slowly” during manual operation, so that a very small window opening particularly for in-vehicle ventilation can be easily set and does not impair the attention of driving operation.

  However, this technique has a drawback that it takes time to open and close the window largely by manual operation because the window opening and closing speed at the time of manual operation is fixed to a low predetermined value.

  <Second Prior Art> Therefore, in Non-Patent Document 1, a desired window opening degree can be stored in a memory, and a memory switch provided separately is operated to obtain the stored opening degree. A technique for controlling a window opening / closing mechanism is described.

  However, this technique has a drawback in that it is inconvenient because it requires an operation of storing a desired window opening degree in a memory. Moreover, the stored window opening cannot be said to be appropriate under all circumstances, for example, the window opening that was appropriate at the time of storage may become inappropriate depending on the subsequent driving state of the vehicle. There is also. For example, when traveling at high speed, the window opening should be made smaller in order to prevent the invasion of wind. For this purpose, it is necessary to redo the memory operation of the window opening, which is a safety point. This is not practical because it must be done after the vehicle is stopped.

  <Third Prior Art> Patent Document 2 discloses a technique that eliminates the drawbacks of Non-Patent Document 1 described above. In this technique, the window opening degree stored in the memory is changed according to the vehicle speed, and specifically, the window opening degree stored in the memory is corrected and changed to the minute side when traveling at high speed.

JP 7-139260 A JP 2002-213141 A Invention Association Open Technique (Public Technical Number 95-7272)

  However, in the third prior art described above, the window opening stored in the memory is corrected and changed to the minute side during high-speed traveling, but the corrected window opening is only a stored value in the memory. However, there is a problem that the window opening degree desired by the user at that time is not necessarily obtained.

  This will be specifically described. Assume that the window opening degree stored in the memory is 3 cm, and this window opening degree is reduced and corrected to -1 cm, that is, 2 cm at a certain vehicle speed. This corrected window opening (2 cm) is a value sufficient for ventilation in the vehicle, but at the same time, it is also a value that may cause wind and rain to enter the vehicle.

  In such a case, the user naturally desires to close the window a little more, but the above-mentioned third prior art does not fulfill the desire. The corrected window opening is mechanically determined based on the memory value, so endure the intrusion such as wind and rain and try to ventilate the car as it is, or give up the car ventilation and open the window There is only one way to deal with it.

Therefore, the present invention makes it possible to change the opening / closing speed of the window in accordance with either or all of the outside air temperature and the weather condition, thereby suppressing the intrusion into the room such as wind and rain while minimizing the room ventilation. It is an object of the present invention to provide a power window control method and a power window control device that enable a limited window opening operation.

According to the present invention, when the opening / closing operation of the power window is performed, the opening / closing drive of the power window is performed based on the weather condition around the vehicle equipped with the power window and / or the outside air temperature. the velocity a method of variably controlling, the point to its features, if the weather conditions of rain or snow, or the opening and closing speed of the power window when the outside air temperature is lower than a predetermined temperature, so In this case, it is slower than the opening / closing drive speed of the power window.

  The “power window” generally refers to an electric opening / closing type window (such as a driver's seat window, a passenger seat window, or a rear seat window in a vehicle such as an automobile) that is installed in a vehicle such as an automobile. However, the present invention is not limited to this. A vehicle other than a vehicle such as an automobile, specifically a closed room, for example, a railway vehicle, a ship, an aircraft, etc., may be provided on a part of the wall surface, floor surface, ceiling surface, etc. Any electric opening / closing type opening may be used. For example, a vehicle such as an automobile may include an electric open / close roof window.

In the present invention, the opening / closing drive speed of the power window is variably controlled based on either or all of the weather conditions around the vehicle equipped with the power window and the outside air temperature. The fact of the control, if the weather conditions of rain or snow, or opening and closing speed of the power window when the outside air temperature is a close drive speed of the power window is lower than the predetermined temperature, it is not It is supposed to be slower.

Here, the opening operation of the power window for the purpose of ventilation in the vehicle should be as small as possible (opening amount of the window) in consideration of the intrusion prevention of raindrops and the like and the intrusion prevention of cold air. In the present invention, the opening / closing drive speed of the power window is controlled to be slow during rainy weather or snowfall where raindrops or the like may enter, or at low outside temperatures where there is a risk of cold intrusion. It is easy to set the window opening, and therefore it is possible to easily carry out ventilation in the vehicle while preventing raindrops or cold air from entering.

Further, a preferred aspect of the present invention is a method for variably controlling the opening / closing driving speed of the power window based on the time of the opening / closing operation when the opening / closing operation of the power window is performed. When the time exceeds a predetermined time, the opening / closing driving speed of the power window is slowed until the predetermined time elapses, and the opening / closing driving speed of the power window is increased after the predetermined time elapses. Is.
In this aspect, paying attention to the intentional opening / closing operation of the minute power window performed in an extremely short time, if the opening / closing operation of the power window is less than the predetermined time, the minute power window opening / closing operation is performed. While it is determined that the opening / closing operation of the window is to be performed, the opening / closing driving speed is reduced, and when the predetermined time is exceeded, it is determined that the opening / closing driving speed is normal and the opening / closing driving speed is increased. Thus, a variable characteristic of the opening / closing drive speed of the power window based on an intuitive operation is obtained.

Further, a preferred aspect of the present invention is a method for variably controlling the opening / closing driving speed of the power window based on the time of the opening / closing operation when the opening / closing operation of the power window is performed. If the time exceeds the predetermined time, the power window opening / closing drive speed is slowed until the predetermined time elapses, and the power window opening / closing drive speed after the predetermined time elapses is increased with the passage of time. It is characterized by being advanced step by step.
In this aspect, since the opening / closing driving speed of the power window after a predetermined time has elapsed, the variable characteristic of the opening / closing driving speed of the power window that is more intuitive can be obtained.

According to the present invention, the opening / closing drive speed of the power window is controlled to be slow during rainy weather or snowfall where raindrops or the like may enter, or at low outdoor temperatures where there is a risk of intrusion of cold air. Therefore, it is easy to set the opening of the window, and thus it is possible to easily carry out ventilation in the vehicle while preventing intrusion of raindrops or cold air.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the specific details or examples in the following description and the illustrations of numerical values, character strings, and other symbols are only for reference in order to clarify the idea of the present invention, and the present invention may be used in whole or in part. Obviously, the idea of the invention is not limited. In addition, a well-known technique, a well-known procedure, a well-known architecture, a well-known circuit configuration, and the like (hereinafter, “well-known matter”) are not described in detail, but this is also to simplify the description. Not all or part of the matter is intentionally excluded. Such well-known matters are known to those skilled in the art at the time of filing of the present invention, and are naturally included in the following description.

First, the configuration will be described.
FIG. 1 is an overall configuration diagram of a power window control device. Here, application to a vehicle such as an automobile is shown, but this is only an example of a “vehicle” with a power window. A vehicle other than an automobile, for example, a railway vehicle, a ship or an aircraft may be used. That is, a closed room, a vehicle in the case of a vehicle such as an automobile, a vehicle having a passenger room or a passenger compartment or a luggage room in the case of a railway vehicle or aircraft, and the wall surface, floor surface, or ceiling surface of the room. Or the like provided with an electrically openable / closable opening (open to the outside). In addition, in the following, an example in which a driver's seat window and a passenger seat window of a vehicle such as an automobile are controlled to be opened / closed electrically is shown. However, the present invention is not limited to this example. Alternatively, a slide-type or one-end lift-type roof window provided on the ceiling may be electrically controlled to be opened and closed.

  The illustrated power window control device 1 includes a main switch ("switch" is abbreviated as "SW" in the figure. The same applies hereinafter) 10 (open / close operation means), a sub switch 40 (open / close operation means), A window opening / closing control unit 50 (control means), a motor output control unit 64, a driver seat side opening / closing mechanism 70, and a passenger seat side opening / closing mechanism 80 are provided.

  The main switch 10 is a switch operated exclusively by a person (driver) seated in the driver's seat, and the installation location is inside a driver's seat door (not shown) (vehicle compartment side). Similarly, the sub switch 40 is a switch that is operated exclusively by a person (passenger) seated in the passenger seat, and the installation place is inside the passenger seat door (vehicle compartment side).

  Each of the main switch 10 and the sub switch 40 is used to open and close a window of a door provided with the switch. The main switch 10 opens and closes a window provided to another door. Also used for. That is, the main switch 10 is used for both opening and closing of the driver's seat window and other windows (passenger seat window in the illustrated example).

  Each of the main switch 10 and the sub switch 40 opens and closes a window to be operated (a driver seat window and a passenger seat window in the main switch 10 and a passenger seat window in the sub switch 40). Can be performed manually (opening and closing the window only while the switch operation is being performed; hereinafter referred to as manual operation), and the main switch 10 can be opened by a single switch opening operation (or closing operation). Can be automatically opened and closed (hereinafter referred to as auto operation).

  In order to realize such a function, the main switch 10 includes a driver side opening / closing mechanism operation switch unit 20 including a manual OPEN (open) switch 21, a manual CLOSE (close) switch 22, an auto OPEN switch 23, and an auto CLOSE switch 24; A passenger-side opening / closing mechanism operation switch unit 30 including a manual OPEN switch 31 and a manual CLOSE switch 32, and a sub switch 40 includes a manual OPEN switch 42 and a manual CLOSE switch 43. 40.

The function of these switches is as follows.
<Driver side opening / closing mechanism operation switch section 20 of main switch 10>
Manual OPEN switch 21: The driver's seat window is opened only while this switch is operated.
Manual CLOSE switch 22: The driver's seat window is closed only while this switch is operated.
Auto OPEN switch 23: When this switch is operated, the driver's seat window is fully opened. There is no need to keep operating the switch during the opening operation.
Auto CLOSE switch 24: When this switch is operated, the driver's seat window is fully closed. There is no need to keep operating the switch during the closing operation.

<Passenger side opening / closing mechanism operation switch portion 30 of the main switch 10>
Manual OPEN switch 31: Opens the passenger seat window only while operating this switch. For remote operation.
Manual CLOSE switch 32: The passenger seat window is closed only while this switch is operated. For remote operation.

<Passenger side opening / closing operation switch 40 of sub switch 40>
Manual OPEN switch 42: The passenger seat window is opened only while this switch is operated.
Manual CLOSE switch 43: The passenger seat window is closed only while this switch is operated.

  Next, the power window opening / closing control unit 50 drives the motor output control unit 64 in response to the switch operation of the main switch 10 and the sub switch 40 described above, thereby driving the driver seat side opening / closing mechanism 70 and the passenger seat side opening / closing mechanism 80. Here, although not particularly limited, a central processing unit (hereinafter referred to as “CPU”) 51, a non-volatile storage unit (hereinafter referred to as “ROM”) 52, and a volatile storage unit (hereinafter referred to as “RAM”). An example constituted by a microcomputer including 53 and an input / output unit 54 is illustrated.

  The CPU 51 loads software (control program or the like) previously written in the ROM 52 into the RAM 53, executes the software on the RAM 53, and appropriately captures necessary information via the input / output unit 54. Based on the information, the control amount of the driver's seat side opening / closing mechanism 70 and the passenger seat side opening / closing mechanism 80 (the opening / closing operation amount of the driver's seat window and the passenger seat window) is calculated, and the control amount is output to the motor via the input / output unit 54. The output is output to the output control unit 64, and the control feature is that the “required information” includes information on the vehicle speed and weather.

  That is, in the illustrated example, the vehicle speed signal Sv from the vehicle speed sensor 61 (detection means), the wiper on / off signal Sw from the wiper switch 62 (detection means), the outside air temperature, and the input / output unit 54 of the power window opening / closing control unit 50 The outside temperature signal St from the sensor 63 (detection means) is inputted, and the power window opening / closing control unit 50 adds each of these signals (vehicle speed signal) in addition to the switch operation information of the main switch 10 and the sub switch 40 described above. It is characterized in that the opening / closing operation amount of the driver's seat window and the passenger seat window is calculated in consideration of information (vehicle speed and weather information) indicated by Sv, wiper on / off signal Sw, and outside air temperature signal St). The calculation feature points will be described in detail later (operation column).

  The motor output control unit 64 is based on the driver's seat window opening / closing control command value CMDa and the passenger's seat window opening / closing control command value CMDb from the power window opening / closing control unit 50, and the opening / closing mechanism (driver's seat side opening / closing mechanism) corresponding to each window. 70 or the opening / closing actuator 80 (passenger side opening / closing mechanism 80) generates and outputs a drive current for the window opening / closing actuators (generally motors) 71 and 81.

Next, the operation will be described.
(1) Window opening / closing speed control based on vehicle speed:
FIG. 2 is a diagram illustrating a flowchart of software executed by the CPU 51, and more particularly, is a diagram illustrating a flowchart for performing window opening / closing speed control based on the vehicle speed. “Vehicle speed” refers to the traveling speed of vehicles such as automobiles and railroads, and corresponds to the speed of other vehicles, for example, for ships, and for airplanes. .

  This flowchart normally loops the manual open / close operation switch ON determination process (step S1). The manual opening / closing operation switch refers to each manual switch of the main switch 10 (manual OPEN switch 21, manual CLOSE switch 22, manual OPEN switch 31, manual CLOSE switch 32), and each manual switch of the sub switch 40 (manual OPEN switch 41, manual CLOSE switch 42). If any one of these switches is turned ON, the determination result of the ON determination process (step S1) is “YES” and the process exits the loop.

  When the vehicle exits the loop, first, the vehicle speed signal Sv from the vehicle speed sensor 61 is captured, and a predetermined vehicle speed corresponding to the current vehicle speed indicated by the vehicle speed signal Sv and the vehicle speed at which there is a risk of wind blowing into the vehicle. The determination threshold value (for convenience, “SL1”) is compared (step S2). If the current vehicle speed does not exceed SL1, the window opening / closing speed is set to “high speed” (step S3). If the current vehicle speed exceeds SL1, the window opening / closing speed is set to “low speed” (step S4). ).

  Here, the “high speed” of the window opening / closing speed is a speed at which the window opening / closing operator (driver or passenger) can open and close the window smoothly and quickly without feeling stressed. In the present specification, this speed is referred to as “high speed” for the sake of convenience. On the other hand, the “low speed” of the window opening / closing speed is a relative term corresponding to the above “high speed”, and in particular, the “slow” speed at which a minute window opening can be set finely. Say. These “high speed” and “low speed” window opening / closing speeds are not particularly shown by actual numerical values, but may be set to appropriate values by repeating the experiment, for example.

  FIG. 3 is a characteristic diagram of window opening / closing speed control based on the vehicle speed. In this figure, SP1 represents the above "high speed" window opening / closing speed, and SP2 represents the above "low speed" window opening / closing speed. In addition, since the current vehicle speed does not exceed SL1 between time T1 on time axis and after time T2, the window opening / closing speed becomes SP1, that is, “high speed”, and further, from time T1 to time T2. Since the vehicle speed currently exceeds SL1, the window opening / closing speed is SP2, that is, “low speed” is shown.

  The following effects are obtained from this characteristic diagram. First, for example, when a manual window opening operation for vehicle interior ventilation is performed in a traveling state such as when the vehicle is stopped or traveling at a low speed (the current vehicle speed does not exceed SL1), the window opening speed at that time is “high speed”. On the other hand, when a manual window opening operation for in-vehicle ventilation is performed in a high-speed running state (a state where the current vehicle speed exceeds SL1), the window opening speed at that time becomes “low speed”.

  Here, in-vehicle ventilation is often performed for the purpose of, for example, driving out cigarette smoke outside the vehicle. The window opening at that time should be as large as possible if the ventilation efficiency is important. On the other hand, an excessive window opening during high-speed driving may cause strong wind to enter the car or increase wind noise. The passenger must feel uncomfortable, so the window opening must be as small as possible.

  Thus, for example, even when the window opening operation is performed for ventilation, a large window opening degree may be used when the vehicle is stopped or running at a low speed, while the window opening degree must be as small as possible for high speed running. However, if the opening and closing speed of the window is fixed to one speed, for example, if it is fixed to "High speed", it is possible to set a large window opening without any trouble, but setting a small window opening is difficult. To master. This is because, because of the “high speed”, the desired minute window opening is passed, and the opening operation must be repeated after returning to the fully closed state.

  For such inconvenience, according to the present embodiment, when the current vehicle speed exceeds SL1, it is determined that the vehicle is in a “high-speed running state” where there is a risk of strong wind intrusion into the vehicle. In the state, the window opening / closing speed is changed to “low speed”, so that the desired small window opening degree is not passed, so that a strong wind enters the vehicle and the wind noise increases. Therefore, a special effect can be obtained in which the minimum window opening required for in-vehicle ventilation can be easily set without causing discomfort to the passenger.

(2) Multistage control of window opening / closing speed based on vehicle speed:
FIG. 4 is a diagram showing a flowchart of software executed by the CPU 51, and in particular, is a diagram showing a flowchart for performing multi-stage control of the window opening / closing speed based on the vehicle speed. This flowchart normally loops the manual open / close operation switch ON determination process (step S11). When any one of the manual opening / closing operation switches is turned ON, the determination result of the ON determination process (step S11) becomes “YES” and the loop is exited.

  When exiting the loop, first, the vehicle speed signal Sv from the vehicle speed sensor 61 is captured, and the current vehicle speed indicated by the vehicle speed signal Sv and the first vehicle speed determination threshold value (for convenience, “SL11”). .) Is compared (step S12). If the current vehicle speed does not exceed SL11, the window opening / closing speed is set to “first speed” (step S13). If the current vehicle speed exceeds SL11, the current vehicle speed and the second vehicle speed are determined. The threshold value (for convenience, “SL12”) is compared (step S14). If the current vehicle speed does not exceed SL12, the window opening / closing speed is set to “second speed” (step S15). If the current vehicle speed exceeds SL12, the current vehicle speed and the third vehicle speed are determined. The threshold value (for convenience, “SL13”) is compared (step S16). If the current vehicle speed does not exceed SL13, the window opening / closing speed is set to “third speed” (step S17). If the current vehicle speed exceeds SL13, the window opening / closing speed is set to “fourth speed”. "(Step S18).

  Here, the “first speed” of the window opening / closing speed is a speed corresponding to the “high speed” in the above (1). The “second speed”, “third speed”, and “fourth speed” are lower than the “first speed” and have a descending relationship (“second speed”). > "Third speed"> "fourth speed").

  In other words, the “first speed” is a speed at which the window opening / closing operator (driver or passenger) can open and close the window smoothly and quickly without feeling stress, while the “second speed”, The “third speed” and the “fourth speed” are lower than the “first speed” described above, and thus are “slow” speeds capable of finely setting a minute window opening, The degree of “slowness” is a speed in which the “third speed” is larger than the “second speed”, and the “fourth speed” is larger than the “second speed”.

  The relationship between the three vehicle speed determination threshold values (SL11 to SL13) is 0 <SL11 <SL12 <SL13, and this relationship is a multi-stage vehicle speed at which there is a possibility of wind intrusion into the vehicle. It is.

  As described above, the “second speed”, the “third speed”, and the “fourth speed” are in a descending order, and for example, the “second speed” is compared with the “second speed”. If the “speed” is expressed as a “slow” speed, the “third speed” can be expressed as a “slower” speed, and the “fourth speed” is “slower”. It can be expressed as “speed”. These multi-stage speeds (first to fourth speeds) are not particularly indicated by actual numerical values, as in the case of “high speed” and “low speed” in (1) above. You can set it to any value.

  FIG. 5 is a characteristic diagram of multi-stage control of the window opening / closing speed based on the vehicle speed. In this figure, SP11 represents the “first speed”, SP12 represents the “second speed”, SP13 represents the “third speed”, and SP14 represents the “fourth speed”. Speed ". In addition, since the current vehicle speed does not exceed SL11 until time point T11 on the time axis and after time point T16, the window opening / closing speed becomes SP11, that is, the “first speed”. Between T12 and between time T15 and time T16, since the current vehicle speed exceeds SL11, the window opening / closing speed becomes SP12, that is, the “second speed”, and between time T12 and time T13. Since the current vehicle speed exceeds SL12 between time T14 and time T15, the window opening / closing speed is SP13, that is, the “third speed”, and the current vehicle speed is between time T13 and time T14. Shows that the window opening / closing speed is SP14, that is, the “fourth speed”.

  The following effects are obtained from this characteristic diagram. First, when a manual window opening operation for vehicle interior ventilation is performed in a traveling state such as when the vehicle is stopped or extremely low speed traveling (the current vehicle speed does not exceed SL11), the window opening speed at that time is “ On the other hand, when a manual window opening operation for vehicle interior ventilation is performed in a low-speed traveling state (a state where the current vehicle speed exceeds SL11), the window opening speed at that time is “first speed”. When the manual window opening operation for in-vehicle ventilation is performed in the medium speed traveling state (the current vehicle speed exceeds SL12), the window opening speed at that time is “third speed”. If the manual window opening operation for ventilation in the vehicle is performed in the high speed driving state (the current vehicle speed exceeds SL13), the window opening speed at that time Become "fourth speed".

  The feature of this embodiment is that the running state of the vehicle is determined in multiple stages using a plurality of vehicle speed determination threshold values (SL11 to SL13) (in the example shown, it is four-stage determination, but is not limited to this number of stages). The window opening / closing speed (first to fourth speeds) corresponding to each traveling speed is selectively set.

  That is, when the vehicle is stopped or traveled at a very low speed, the “first speed” corresponding to the “high speed” in (1) is selected as the window opening / closing speed, while during other travels, as the vehicle speed increases, “ The “second speed”, which is “slower” than the “first speed”, the “third speed”, which is “slower”, and the “fourth speed” which is “slower” are the window opening / closing speeds. In particular, as the vehicle speed increases, the window opening / closing speed becomes slower and the fine window opening can be set more finely. It is possible to effectively suppress unpleasant wind blowing into the room and wind noise, which become conspicuous as the number increases.

(3) Window opening / closing speed control based on the operating state of the wiper:
In the above embodiments (1) and (2), the window opening / closing speed control based on the vehicle speed is performed. However, the parameter for determining the window opening / closing speed is not limited to the vehicle speed. For example, even when the vehicle is stopped, when the window is opened for ventilation under stormy weather such as rainy weather, an excessively large window opening is not preferable. This is because raindrops blow into the vehicle through the window opening. In such a case, it is necessary to set the window opening to such a small degree that it is necessary for ventilation and raindrops are not blown.

  FIG. 6 is a diagram illustrating a flowchart of software executed by the CPU 51. In particular, FIG. 6 is a diagram illustrating a flowchart for performing optimum control of the window opening / closing speed by detecting bad weather conditions such as rainy weather. In this flowchart, the manual open / close operation switch ON determination process (step S21) is normally looped. When any one of the manual opening / closing operation switches is turned ON, the determination result of the above-described ON determination process (step S21) is “YES” and the loop is exited.

  When exiting the loop, first, the wiper on / off signal Sw from the wiper switch 62 is captured, and whether or not the current wiper operating state indicated by the wiper on / off signal Sw is “wiper stop (wiper OFF)”. Is determined (step S22). If the wiper is stopped, it is determined that the weather is not in bad weather such as rainy weather (or the weather is less likely to invade raindrops etc. even in rainy weather). On the other hand, if the wiper is not stopped when the wiper is not stopped (step S23), it is determined that the weather is in a bad weather state where raindrops or the like may possibly enter the vehicle, and the window opening / closing speed is set to "low" (step S23). S24).

  Here, “high speed” of the window opening / closing speed is a speed at which the window opening / closing operator (driver or passenger) can open and close the window smoothly and quickly so as not to feel stress as in (1) above. That's it. Similarly, “low speed” of the window opening / closing speed is a relative term corresponding to the above “high speed”, and in particular, a “slow” speed at which a minute window opening can be set finely. Say.

  FIG. 7 is a characteristic diagram of window opening / closing speed control based on the operating state of the wiper. In this figure, SP21 represents the above "high speed" window opening / closing speed, and SP22 represents the above "low speed" window opening / closing speed. In addition, since the wiper is stopped between time T21 on time axis and after time T22, the window opening / closing speed becomes SP21, that is, “high speed”, and further, wiper between time T21 and time T22. Since this is an operation, the window opening / closing speed is SP22, that is, “low speed” is shown.

  The following effects are obtained from this characteristic diagram. First, when the wiper is stopped, for example, when a manual window opening operation for ventilation inside the vehicle is performed, the window opening speed at that time becomes “high speed”, while the wiper is operated, When a manual window opening operation for ventilation in the vehicle is performed, the window opening speed at that time becomes “low speed”.

  Normally, the wiper is operated in rainy weather (or during snowfall). In that situation, for example, when a window is opened for ventilation, raindrops enter the vehicle, so that it is as small as possible. The window opening must be correct. In this embodiment, since the window opening / closing speed is set to “low speed” in such a case (when the wiper is operated), the above-described minute window opening can be set finely. Incidentally, in this embodiment, the determination as to whether or not the weather is in bad weather such as rain is made based on the operating state of the wiper. However, the present invention is not limited to this. For example, the determination may be made using a water drop sensor provided outside the vehicle body (for example, one in which the electrical resistance value between the electrodes changes due to adhesion of water drops).

(4) Window opening / closing speed control based on outside air temperature:
Furthermore, the parameters for determining the window opening / closing speed are not limited only to the vehicle speed and the operating state of the wiper (whether it is in bad weather conditions such as rainy weather). For example, when the outside air temperature is low, in order to prevent cold air from entering the vehicle, the window opening required for ventilation must be made minute, so the outside air temperature is also an effective parameter.

  FIG. 8 is a diagram illustrating a flowchart of software executed by the CPU 51, and more particularly, is a diagram illustrating a flowchart for performing window opening / closing speed control based on the outside air temperature. This flowchart normally loops the manual open / close operation switch ON determination process (step S31). If any one of the manual opening / closing operation switches is turned ON, the determination result of the above-described ON determination process (step S31) is “YES” and the loop is exited.

  When exiting the loop, first, the outside air temperature signal St from the outside air temperature sensor 63 is taken in, and the current outside air temperature indicated by the outside air temperature signal St and a predetermined temperature corresponding to a low temperature that causes discomfort. The temperature determination threshold value (for convenience, “SL31”) is compared (step S32). If the current outside air temperature is not lower than SL31, it is determined that the outside air temperature state (medium / high temperature state) where there is no risk of discomfort of cold air entering the vehicle and the window opening / closing speed is set to “high speed”. On the other hand, if the current outside air temperature is lower than SL31, it is determined that the outside air temperature state (low temperature state) is likely to cause intrusion of cold air to the extent that the user feels uncomfortable. The speed is set to “low speed” (step S34).

  Here, “high speed” of the window opening / closing speed is a speed at which the window opening / closing operator (driver or passenger) can open and close the window smoothly and quickly so as not to feel stress as in (1) above. That is. Similarly, “low speed” of the window opening / closing speed is a relative term corresponding to the above “high speed”, and in particular, a “slow” speed at which a minute window opening can be set finely. Say.

  FIG. 9 is a characteristic diagram of window opening / closing speed control based on outside air temperature. In this figure, SP31 represents the above "high speed" window opening / closing speed, and SP32 represents the above "low speed" window opening / closing speed. In addition, since the outside air temperature is in the middle and high temperature state until time T31 on the time axis and after time T32, the window opening / closing speed becomes SP31, that is, “high speed”, and further, from time T31 to time T32. Since the outside air temperature is low, the window opening / closing speed is SP32, that is, “low speed” is shown. In the illustrated characteristics, the horizontal axis is a “continuous” time axis, but this is for convenience of explanation. Actually, the period from the time point T31 to the time point T32 represents a season in which the outside air temperature is low (for example, the winter season), and the period from the time point T31 to the time point T32 and the time point after the time point T32 (for example, the summer season). Represents.

  The following effects are obtained from this characteristic diagram. First, if the outside air temperature is medium and high, for example, if a manual window opening operation for ventilation inside the vehicle is performed, the window opening speed at that time becomes “high speed”, while the outside air temperature is low and the inside of the vehicle is When a manual window opening operation for ventilation is performed, the window opening speed at that time becomes “slow”.

  Therefore, in particular, when the window is opened for ventilation, for example, when the window is opened for ventilation, there is a risk of intrusion of cold air that causes discomfort, but in this embodiment, in such a low temperature state, Since the window opening / closing speed is set to “low speed”, a fine window opening degree can be set finely, and intrusion of cold air can be prevented while performing vehicle interior ventilation.

(5) Multi-stage control of window opening / closing speed based on outside air temperature:
FIG. 10 is a diagram illustrating a flowchart of software executed by the CPU 51, and in particular, is a diagram illustrating a flowchart for performing multi-stage control of the window opening / closing speed based on the outside air temperature. In this flowchart, the manual open / close operation switch ON determination process (step S41) is normally looped. When any one of the manual opening / closing operation switches is turned ON, the determination result of the ON determination process (step S41) is “YES” and the loop is exited.

  When exiting the loop, first, the outside air temperature signal St from the outside air temperature sensor 63 is fetched, and the current outside air temperature indicated by the outside air temperature signal St and the third air temperature determination threshold value (for convenience) ("SL43") is compared (step S42). If the current outside air temperature is lower than SL43, the window opening / closing speed is set to “fourth speed” (step S43). If the current outside air temperature is not lower than SL43, the current outside air temperature, A second temperature determination threshold value (for convenience, “SL42”) is compared (step S44). If the current outside air temperature is lower than SL42, the window opening / closing speed is set to “third speed” (step S45). If the current outside air temperature is not lower than SL42, the current outside air temperature, The first temperature determination threshold value (for convenience, “SL41”) is compared (step S46). If the current outside air temperature is lower than SL41, the window opening / closing speed is set to “second speed” (step S47). If the current outside air temperature is not lower than SL41, the window opening / closing speed is set to “ First speed "is set (step S48).

  Here, the “first speed” of the window opening / closing speed is a speed corresponding to the “high speed” in the above (1). The “second speed”, “third speed”, and “fourth speed” are lower than the “first speed” and have a descending relationship (“second speed”). > "Third speed"> "fourth speed").

  In other words, the “first speed” is a speed at which the window opening / closing operator (driver or passenger) can open and close the window smoothly and quickly without feeling stress, while the “second speed”, The “third speed” and the “fourth speed” are lower than the “first speed” described above, and thus are “slow” speeds capable of finely setting a minute window opening, The degree of “slowness” is a speed in which the “third speed” is larger than the “second speed”, and the “fourth speed” is larger than the “second speed”.

  Further, the three temperature determination threshold values (SL41 to SL43) are in a descending order with respect to the temperature (SL41> SL42> SL43). Specifically, SL41 determines whether most passengers feel uncomfortable. Two temperature determination threshold values (SL42 and SL43) lower than the temperature determination threshold value, which are boundaries between the two, are a multi-stage temperature range in which those occupants feel clear insensitivity. is there.

  As described above, the “second speed”, the “third speed”, and the “fourth speed” are in a descending order, and for example, the “second speed” is compared with the “second speed”. If the “speed” is expressed as a “slow” speed, the “third speed” can be expressed as a “slower” speed, and the “fourth speed” is “slower”. It can be expressed as “speed”. These multi-stage speeds (first to fourth speeds) are not particularly indicated by actual numerical values, as in the case of “high speed” and “low speed” in (1) above. You can set it to any value.

  FIG. 11 is a characteristic diagram of multi-step control of the window opening / closing speed based on the outside air temperature. In this figure, SP41 represents the above "first speed", SP42 represents the above "second speed", SP43 represents the above "third speed", and SP44 represents the above "fourth speed". Speed ". In addition, since the current outside air temperature is not lower than SL41 until time T41 on the time axis and after time T46, the window opening / closing speed becomes SP41, that is, the “first speed”, and further, time T41. From the time T42 to the time T42, and from the time T45 to the time T46, the current outside air temperature is lower than the SL41, so the window opening / closing speed becomes SP42, that is, the “second speed”. Between time T43 and between time T44 and time T45, the current outside air temperature is lower than SL42. Therefore, the window opening / closing speed becomes SP43, that is, the “third speed”, and time T43 to time T44. Until the current outside air temperature is lower than SL43, the window opening / closing speed is SP44, that is, “fourth”. It shows a state in which the speed ".

  The following effects are obtained from this characteristic diagram. First, when the outside air temperature is high (the current outside air temperature is not lower than SL41), for example, when a manual window opening operation for vehicle interior ventilation is performed, the window opening speed at that time is “first. On the other hand, when a manual window opening operation for ventilation inside the vehicle is performed in a state where the outside air temperature is medium (the current outside air temperature is lower than SL41), the window opening speed at that time is “ 2nd speed ", when the outside air temperature is low (the current outside air temperature is lower than SL42) and the manual window opening operation is performed for vehicle ventilation, the window opening speed at that time is When “third speed” is reached and the outside air temperature is extremely low (the current outside air temperature is lower than SL43), and the manual window is opened for vehicle interior ventilation. The window opening speed at that time becomes "fourth speed".

  The feature of this embodiment is that the outside air temperature is determined in multiple stages using a plurality of temperature determination threshold values (SL41 to SL43) (in the illustrated example, four-stage determination is not limited to the number of stages), and each temperature is determined. The window opening / closing speed (first to fourth speeds) corresponding to the area is selectively set.

  That is, in the high temperature range, the “first speed” corresponding to the “high speed” in the above (1) is selected as the window opening / closing speed, while in the lower temperature range, as the outside air temperature decreases, the “first speed” "Second speed", "slower" than "second speed", "third speed", "slower", and "fourth speed", "slower" are selected as window opening / closing speeds. In particular, as the outside air temperature decreases, the window opening / closing speed becomes slower and the fine window opening can be set finely. It is possible to suppress unpleasant cold air blowing into the room, which becomes conspicuous as it decreases.

(6) Window opening / closing speed control based on composite information:
FIG. 12 is a diagram showing a flowchart of software executed by the CPU 51, and more particularly, a flowchart for performing window opening / closing speed control based on composite information of the vehicle speed, the wiper operating state, and the outside air temperature. In this flowchart, the manual open / close operation switch ON determination process (step S51) is normally looped. If any one of the manual opening / closing operation switches is turned ON, the determination result of the above-described ON determination process (step S51) is “YES”, and the loop is exited.

  When exiting the loop, first, the vehicle speed signal Sv from the vehicle speed sensor 61 is captured, and the current vehicle speed indicated by the vehicle speed signal Sv and a predetermined vehicle speed determination threshold value (see “SL1” above). Are compared (step S42). If the current vehicle speed is not SL1 or less, that is, if the vehicle is traveling at a high speed, the window opening / closing speed is set to “low speed” (step S56), and if the current vehicle speed is SL1 or less, that is, if the vehicle is traveling at a low speed. Next, the wiper on / off signal Sw from the wiper switch 62 is taken in, and it is determined whether or not the current wiper operating state indicated by the wiper on / off signal Sw is “wiper stop (wiper OFF)” (step S3). S53). If the wiper is not stopped, that is, if the weather is bad such as rainy weather, the window opening / closing speed is set to “low” (step S56). If the wiper is stopped, that is, if the weather is not bad such as rainy weather. Next, the outside air temperature signal St from the outside air temperature sensor 63 is taken in, and the current outside air temperature indicated by the outside air temperature signal St is set to a predetermined temperature determination threshold value (see “SL31” above). Compare (step S54). If the current outside air temperature does not exceed SL31, it is determined that the outside air temperature state (low temperature state) is likely to cause uncomfortable cold air intrusion into the vehicle, and the window opening / closing speed is set to “low speed” (step S56). On the other hand, if the current outside air temperature exceeds SL31, it is judged that the outside air temperature state (medium / high sound state) where there is no possibility of cold air entering the vehicle is set, and the window opening / closing speed is set to “high speed” (step) S55).

  FIG. 13 is a characteristic diagram of window opening / closing speed control based on the composite information. In this figure, “low speed / high speed” in the vehicle speed state corresponds to “YES determination / NO determination” in step S52, and “OFF / ON” in the wiper operation state corresponds to “YES determination / NO determination” in step S53. The “high temperature / low temperature” in the outside air temperature state respectively corresponds to “YES determination / NO determination” in step S54. In addition, the non-hatched portion in the figure represents a characteristic area where the window opening / closing speed is set to “high”, and the hatched portion represents a characteristic area where the window opening / closing speed is set to “low”. As can be understood from this figure, in this embodiment, when the vehicle speed state is high, the wiper operation state is ON, or any of the conditions when the outside air temperature state is low is satisfied. In addition, the window opening / closing speed is set to “low speed”.

  Therefore, according to this embodiment, the window opening / closing speed can be set to “low speed” if one of the three conditions of high speed driving, bad weather conditions such as rainy weather, and low outside air temperature is satisfied, and at high speed driving A small window that is necessary for ventilation inside the vehicle while preventing intrusion of wind into the vehicle, wind noise, raindrops, etc. when driving in rainy weather, and cold intrusion into the vehicle at low outside temperatures. The degree can be set finely.

(7) Window opening / closing speed control based on switch operation time:
FIG. 14 is a diagram illustrating a flowchart of software executed by the CPU 51, and in particular, a flowchart for performing window opening / closing speed control based on the switch operation time. In this flowchart, the manual open / close operation switch ON determination process (step S61) is normally looped. If any one of the manual opening / closing operation switches is turned ON, the determination result of the ON determination process (step S61) is “YES” and the loop is exited.

  When exiting the loop, first, the ON operation time of the manual opening / closing operation switch is acquired, and it is determined whether or not the ON operation time is less than a predetermined time (for example, 1.2 seconds) (step S62). If it is not less than the predetermined time, the window opening / closing speed is set to “high speed” (step S63), whereas if it is less than the predetermined time, the window opening / closing speed is set to “low speed” (step S64).

  Here, “high speed” of the window opening / closing speed is a speed at which the window opening / closing operator (driver or passenger) can open and close the window smoothly and quickly so as not to feel stress as in (1) above. That is. Similarly, “low speed” of the window opening / closing speed is a relative term corresponding to the above “high speed”, and in particular, “slow” speed at which a minute window opening can be set finely. Say.

  FIG. 15 is a characteristic diagram of window opening / closing speed control based on switch operation time. In this figure, SP51 represents the above "high speed" window opening / closing speed, and SP52 represents the above "low speed" window opening / closing speed. Further, Ta on the time axis represents a time width less than a predetermined time (1.2 seconds), and Tb represents a time width that matches the predetermined time (1.2 seconds).

  In the time width Ta, the window opening / closing speed is SP51, that is, “low speed” over the entire width. Thereby, when the switch operation is performed for a short time (less than a predetermined time), the window opening / closing speed becomes “low speed”, so that a fine window opening can be set finely. On the other hand, when a long switch operation exceeding the predetermined time (1.2 seconds) is performed, the window opening / closing speed of the time width Tb until the predetermined time (1.2 seconds) elapses becomes “low speed”. The window opening / closing speed during the subsequent switch operation period becomes “high speed”.

  In other words, when a switch operation is performed for a short time (less than a predetermined time) with the intention of setting a fine window opening, the window opening / closing speed is set to “slow” to achieve the fine window opening / closing operation. On the other hand, if a long-time switch operation is performed with the intention of opening and closing the window quickly, the initial window opening / closing speed is set to “slow”, but the window is opened immediately after a predetermined time (1.2 seconds). Since the opening / closing speed is set to “high speed”, a quick window opening / closing operation can be realized.

(8) Multi-stage control of window opening / closing speed based on switch operation time:
FIG. 16 is a diagram illustrating a flowchart of software executed by the CPU 51, and in particular, is a diagram illustrating a flowchart for performing multi-stage control of the window opening / closing speed based on the switch operation time. This flowchart normally loops the manual open / close operation switch ON determination process (step S71). When any one of the manual opening / closing operation switches is turned ON, the determination result of the ON determination process (step S71) is “YES”, and the loop is exited.

  When exiting the loop, first, the window opening / closing speed is set to the lowest “fourth speed” (step S72), and the timer is started (step S73). Next, it is determined whether or not the manual opening / closing operation switch has been turned off (step S74). If the manual opening / closing operation switch has been turned off, the process returns to the above loop again. It is determined whether (for example, 0.6 seconds) has elapsed (step S75). If the first time has not elapsed, the process returns to step S74. If the first time has elapsed, the window opening / closing speed is set to a third speed that is faster than the fourth speed. (Step S76).

  Next, it is determined whether or not the manual opening / closing operation switch has been turned off (step S77). If the manual opening / closing operation switch has been turned off, the process returns to the above loop again. It is determined whether (for example, 1.2 seconds) has elapsed (step S78). If the second time has not elapsed, the process returns to step S77. If the second time has elapsed, the window opening / closing speed is set to a second speed that is faster than the third speed. (Step S79).

  Next, it is determined whether or not the manual opening / closing operation switch is turned off (step S80). If it is turned off, the process returns to the above loop again. If it is not turned off, the timer is set to the third time. It is determined whether or not (for example, 1.8 seconds) has elapsed (step S81). If the third time has not elapsed, the process returns to step S80, and if the third time has elapsed, the window opening / closing speed is set to a first speed that is faster than the third speed ( Step S82) and return to Step S80.

  FIG. 17 is a characteristic diagram of multi-stage control of the window opening / closing speed based on the switch operation time. In this figure, SP61 represents the above "first speed", SP62 represents the above "second speed", SP63 represents the above "third speed", and SP64 represents the above "fourth speed". Speed ". The “fourth speed” is the slowest and the “first speed” is the fastest. The “second speed” and the “third speed” are intermediate speeds, and have a relation of “second speed”> “third speed”.

  Further, Ta on the time axis represents a time width less than the first time (0.6 seconds), and Tb represents a time width that matches the first time. Further, Tc represents a time width that matches the second time (1.2 seconds), and Td represents a time width that matches the third time (1.8 seconds).

  In the time width Ta, the window opening / closing speed is SP64, that is, the “fourth speed” over the entire width. As a result, when the switch operation is performed for a short time (less than the first time), the window opening / closing speed is the slowest “fourth speed”, so that a fine window opening can be set finely.

  On the other hand, when a long switch operation exceeding the third time (1.8 seconds) is performed, the window opening / closing speed until the first first time (Tb = 0.6 seconds) elapses is “first”. 4 ”, and the window opening / closing speed until the second time (Tc = 0.8 seconds) that follows is“ third speed ”, and then the third time (Td = 1.8). The window opening / closing speed until the second) elapses becomes the “second speed”, and the window opening / closing speed for the remaining time becomes the “first speed”.

  In other words, when a switch operation is performed for a short time (less than 0.6 seconds) with the intention of setting a fine window opening, the window opening / closing speed is set to the slowest “fourth speed”, and the details are detailed. On the other hand, if the switch is operated for a long time with the intention of opening and closing the window quickly, the passage of the time (0.6 seconds → 1.2 seconds → 1.8 seconds) The window opening / closing speed can be increased step by step (4th speed → 3rd speed →→ 2nd speed → 1st speed) as time elapses → remaining time). The opening / closing operation can be realized.

It is a whole block diagram of a power window control apparatus. It is a figure which shows the flowchart for performing window opening-and-closing speed control based on a vehicle speed. It is a characteristic view of window opening and closing speed control based on the vehicle speed. It is a figure which shows the flowchart for performing multistage control of the window opening and closing speed based on a vehicle speed. It is a characteristic view of the multistage control of the window opening and closing speed based on the vehicle speed. It is a figure which shows the flowchart for performing optimal control of the window opening-and-closing speed by detecting rain. It is a characteristic view of window opening and closing speed control based on the operating state of the wiper. It is a figure which shows the flowchart for performing window opening-and-closing speed control based on external temperature. It is a characteristic view of window opening and closing speed control based on outside air temperature. It is a figure which shows the flowchart for performing multistage control of the window opening and closing speed based on external temperature. It is a characteristic view of the multistage control of the window opening and closing speed based on outside air temperature. It is a figure which shows the flowchart for performing window opening-and-closing speed control based on the composite information of a vehicle speed, a wiper operating state, and external temperature. It is a characteristic view of window opening and closing speed control based on composite information. It is a figure which shows the flowchart for performing window opening-and-closing speed control based on switch operation time. It is a characteristic view of window opening and closing speed control based on switch operation time. It is a figure which shows the flowchart for performing multistep control of the window opening and closing speed based on switch operation time. It is a characteristic view of the multistage control of the window opening and closing speed based on the switch operation time.

Explanation of symbols

1 Power window control device 10 Main switch (open / close operation means)
40 Sub switch (open / close operation means)
50 Power window open / close control unit (control means)
61 Vehicle speed sensor (detection means)
62 Wiper switch (detection means)
61 Outside temperature sensor (detection means)

Claims (10)

When the opening / closing operation of the power window is performed, the opening / closing driving speed of the power window is variably controlled based on the weather condition around the vehicle equipped with the power window and / or the outside air temperature. A way to
When the weather condition is rainy or snowy, or when the outside air temperature is lower than a predetermined temperature, the opening / closing driving speed of the power window is made slower than the opening / closing driving speed of the power window otherwise. Power window control method. A method for variably controlling the opening / closing driving speed of the power window based on the outside air temperature of the vehicle equipped with the power window when the opening / closing operation of the power window is performed,
The opening / closing driving speed of the power window when the outside air temperature is lower than a predetermined temperature is slower than the opening / closing driving speed of the power window when the outside air temperature is not, and the degree of slowing down is as the outside air temperature decreases. A power window control method characterized by enlarging. Further, according to claim 1 which time opening and closing of the power window is characterized by slower than opening and closing speed of the power window when the opening and closing speed of the power window is shorter than the predetermined time, otherwise Or the power window control method of 2. Furthermore, if the time of opening and closing of the power window exceeds a predetermined time, to slow down the opening and closing speed of the power window of a period until the predetermined time, and, of the power window after a lapse of the predetermined time 3. The power window control method according to claim 1, wherein the opening / closing drive speed is increased. Furthermore, if the time of opening and closing of the power window exceeds a predetermined time, to slow down the opening and closing speed of the power window of a period until the predetermined time, and, of the power window after a lapse of the predetermined time 3. The power window control method according to claim 1 , wherein the opening / closing drive speed is increased stepwise as time elapses. Power window opening / closing means operated by the user;
Detection means for detecting all or any of the weather conditions and / or ambient temperature around the vehicle equipped with the power window;
Control means for variably controlling the opening / closing drive speed of the power window based on detection information of the detection means, and a power window control device comprising:
Wherein if the weather conditions of rain or snow, or the opening and closing speed of the power window when the outside air temperature is lower than the predetermined temperature, than opening and closing speed of the power window otherwise A power window control device characterized by performing a slow control. Power window opening / closing means operated by the user;
Detecting means for detecting the outside air temperature of the vehicle equipped with the power window;
Control means for variably controlling the opening / closing drive speed of the power window based on detection information of the detection means, and a power window control device comprising:
The control means makes the opening / closing driving speed of the power window when the outside air temperature is lower than a predetermined temperature slower than the opening / closing driving speed of the power window otherwise, A power window control device that is controlled to increase as the outside air temperature decreases. The control means further controls the opening / closing driving speed of the power window when the opening / closing operation time of the power window is shorter than a predetermined time, slower than the opening / closing driving speed of the power window otherwise. The power window control device according to claim 6 or 7, characterized in that It said control means further if the time of opening and closing of the power window exceeds a predetermined time, to slow down the opening and closing speed of the power window of a period until the predetermined time, and, after the lapse of the predetermined time The power window control device according to claim 6 or 7 , wherein the opening / closing drive speed of the power window is controlled to be fast. It said control means further if the time of opening and closing of the power window exceeds a predetermined time, to slow down the opening and closing speed of the power window of a period until the predetermined time, and, after the lapse of the predetermined time The power window control device according to claim 6 or 7 , wherein the opening / closing drive speed of the power window is controlled so as to be increased stepwise as the time elapses.

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