JP6192116B2 - Window opening / closing control system and window opening / closing control device - Google Patents

Description

  The present invention relates to a window opening / closing control system and a window opening / closing control device, and more particularly, to a window opening / closing control system and a window opening / closing control device for performing an opening / closing operation of a window of each vehicle seat including a seat other than a driver's seat from a driver's seat. .

  In a power window system that opens and closes a window of a vehicle by an electric motor, the motor rotates in the normal rotation direction or the reverse rotation direction according to the operation state of the operation switch, thereby opening and closing the window. For example, when the operation switch is operated to the closed side (UP side), the motor rotates in the forward direction and the window is closed, and when the operation switch is operated to the open side (DOWN side), the motor rotates in the reverse direction and the window Opens. The rotation control in the forward direction and the reverse direction of the motor is performed by switching the direction of the current flowing through the motor in the motor drive circuit based on the signal from the operation switch.

  Generally, in an automobile, an operation switch is provided in each of a driver seat and other seats (a passenger seat, a right rear seat, a left rear seat, etc.). The operation switch (main switch) provided in the driver's seat includes a driver's seat switch for operating the opening / closing of the driver's side window, as well as a switch for other seats that remotely controls the opening / closing of the window on the other side. Yes. An operation switch (sub switch) provided in another seat operates only to open and close the window of the seat. A control unit for controlling opening and closing of the window is provided based on the operation of the main switch and the sub switch.

  The window opening / closing control includes opening / closing the window only while operating the operation switch (manual operation) and control of opening / closing the window until the window is fully opened or closed even if the operation is stopped (automatic). Operation). Generally, only the main switch is provided with an operation switch for automatic operation, and the sub switch is provided with only an operation switch for manual operation.

  In Patent Document 1, a control unit is provided for each of the main switch of the driver's seat and the sub switch of the other seat, and the control unit of each seat performs manual operation of the window of each seat according to the switch operation of each seat. In addition, a window opening / closing control device that controls automatic operation is disclosed. In this apparatus, the control unit of each seat is connected by a serial communication line. When the window switch on the other seat side is opened or closed with the main switch of the driver's seat, communication is performed from the driver's seat control unit to the corresponding seat control unit via the serial communication line, and the seat's The control unit drives and controls the motor.

  Patent Document 2 discloses a window opening / closing control device in which one control unit receives an input from a main switch of a driver's seat or a sub switch of another seat and controls a driving motor for a window of each seat. Has been.

  Patent Document 3 discloses a window opening / closing control device that detects a ripple of a current flowing in a motor, calculates the number of rotations of the motor based on the detection result, and performs window opening / closing control.

  Patent Document 4 discloses a window opening / closing control device in which a driver's seat side control unit (driver's seat unit) and a passenger's seat side control unit (other seat unit) are connected by a single signal line. In this apparatus, when the opening / closing operation of the window is performed in the driver's seat unit, the direction of the current flowing through the motor is switched using the contact points of the window closing switch and the window opening switch of the other seat unit.

JP 2008-19625 A JP-A-6-343279 JP 2009-108493 A JP 2012-82647 A

  For example, when the electronic control device controls the opening and closing of the window on the other seat side, as long as the motor rotation amount is always detected and the current window position is calculated based on the detection result, the calculated window position error is small. On the other hand, in general, it takes a while for the electronic control device to become operable after the power is turned on. For this reason, in a system that can open and close the window on the other seat side with a sub switch of another seat that is a simple mechanical switch in addition to the electronic control device, the sub seat of the other seat must be When the window is opened and closed by the switch, there is a problem that an error occurs between the window position stored in the electronic control unit and the actual window position.

  The present invention opens and closes a window on the other seat side using an operation switch provided on the other seat side having a contact point for manual operation, and the window on the other seat side is controlled by a control device on the driver seat side. In the power window system that opens and closes, the error of the calculated value of the window position at the start of energization of the control device on the driver's seat side is reduced.

  A window opening / closing control system of the present invention is a window opening / closing control system for controlling opening / closing of a window on the driver's seat side of the vehicle and a window on the other seat side different from the driver's seat, and is a switch provided on the other seat side to open / close the electric circuit When the other seat unit is connected to the positive electrode of the power source of the vehicle through a circuit and the window opening / closing control device provided on the driver's seat side, the other seat unit closes the window on the other seat side. And a momentary-type sub-seat sub-switch having a second contact that is operated when opening a window on the other seat side. The first common terminal connected to one end of the motor for other seats that opens and closes the window, the first wiring and the positive electrode of the power source through the switch circuit, and the first operation is performed by closing the window on the other seat side. A first normally open terminal connected to the common terminal and a first normally closed terminal The second contact is connected to the second common terminal connected to the other end of the other-seat motor, to the positive electrode of the power source via the first wiring and the switch circuit, and the window on the other-seat side is connected. A window opening / closing control device is provided for a driver's seat for opening / closing a driver's side window, comprising a second normally open terminal connected to the second common terminal by an opening operation and a second normally closed terminal. It has a main switch, a third contact operated when closing the window on the other seat side, and a fourth contact operated when opening the window on the other seat side, and opens and closes the window on the other seat side. A main switch for other seats for operation, a first relay contact, a first relay circuit driven when closing the window on the other seat side, and a second relay contact, A second relay circuit that is driven when the side window is opened, and a switch circuit that starts when the switch circuit is turned on In addition to stopping as the vehicle is turned off, signals are input from the driver's seat main switch and the other seat main switch, and the first relay circuit and A first relay contact that is connected to the first normally closed terminal by the second wiring, and a control unit that controls the second relay circuit. A first normally open relay terminal and a first normally closed relay terminal connected to the positive electrode of the power source, and the second relay contact is connected to the second normally closed terminal by a third wiring. The second common relay terminal, the second normally open relay terminal connected to the ground, and the second normally closed relay terminal connected to the positive electrode of the power source, and the control unit is activated If not, the first common relay terminal And the first normally closed relay terminal are connected, the second common relay terminal and the second normally closed relay terminal are connected, and the main switch for other seats is not operated after the controller is activated. The first common relay terminal and the first normally open relay terminal are connected, and the second common relay terminal and the second normally open relay terminal are connected.

  In the window opening and closing control system of the present invention, when the control unit is not activated, the first common relay terminal and the first normally closed relay terminal are connected, and the second common relay terminal and the second normal relay terminal are connected. When the closed relay terminal is connected and the operation is not performed on the main switch for other seats after activation, the control unit connects the first common relay terminal and the first normally open relay terminal, and the second The common relay terminal and the second normally open relay terminal are connected.

  Therefore, the window on the other seat side is opened and closed by using the operation switch provided on the other seat side having a contact point for manual operation, and the window on the other seat side is opened and closed by the control device on the driver seat side. In the power window system that performs the above, it is possible to reduce the error in the calculated value of the window position at the start of energization of the control device on the driver's seat side.

  This switch circuit is realized by, for example, a relay or a switch. This power supply is realized by, for example, a battery. This control part is implement | achieved by CPU, for example.

  The control unit connects the first common relay terminal and the first normally open relay terminal when the operation is not performed on the main switch for the other seats from the start to the stop. When the second common relay terminal and the second normally open relay terminal are connected and the window is closed with respect to the main switch for the other seat, the first common relay terminal and the first normally closed relay When the terminal is connected and an operation for opening the window is performed on the main switch for the other seat, the second common relay terminal and the second normally closed relay terminal are connected.

  Accordingly, the window on the other seat side can be reliably opened and closed by the operation switch on the driver seat side.

  The window opening and closing control device of the present invention is a unit for other seats provided on the other seat side different from the driver seat of the vehicle and connected to the positive electrode of the power source of the vehicle via a switch circuit that opens and closes the electric circuit, A momentary-type sub-seat sub-switch having a first contact operated when closing the window on the other seat side and a second contact operated when opening the window on the other seat side; Is connected to the first common terminal connected to one end of the motor for the other seat that opens and closes the window on the other seat side, and to the positive electrode of the power source through the first wiring and the switch circuit, A first normally open terminal connected to the first common terminal by an operation of closing the window of the vehicle, and a first normally closed terminal, wherein the second contact is connected to the other end of the other seat motor. The second common terminal is connected to the positive electrode of the power source through the first wiring and the switch circuit, and the other seat side Connected via the second wiring and the third wiring to the other seat unit having the second normally open terminal connected to the second common terminal by the operation of opening the window and the second normally closed terminal In addition, in a window opening / closing control device that is provided on the driver's seat side of the vehicle and controls the opening / closing of the driver's side window and the windows on the other seat side, the driver's seat main for opening / closing the driver's side window The switch has a third contact that is operated when closing the window on the other seat side, and a fourth contact that is operated when opening the window on the other seat side, and opens and closes the window on the other seat side. A main switch for other seats, a first relay contact, a first relay circuit that is driven when closing the window on the other seat side, a second relay contact, and the other seat side The second relay circuit that is driven to open the window and the switch circuit are activated when the switch circuit is turned on. When the switch circuit is turned off, the operation stops and a signal is input from the driver seat main switch and the other seat main switch. The first relay contact is connected to the first normally closed terminal by the second wiring, and the control circuit is configured to control the first relay circuit and the second relay circuit. And a first normally closed relay terminal connected to the positive electrode of the power source, and the second relay contact is a second normally closed through a third wiring. A second common relay terminal connected to the terminal, a second normally open relay terminal connected to the ground, and a second normally closed relay terminal connected to the positive electrode of the power source, Is not running, the first common The relay terminal and the first normally closed relay terminal are connected, the second common relay terminal and the second normally closed relay terminal are connected, and the control unit operates on the main switch for other seats after activation. When not being performed, the first common relay terminal and the first normally open relay terminal are connected, and the second common relay terminal and the second normally open relay terminal are connected.

  In the window opening and closing control device of the present invention, when the control unit is not activated, the first common relay terminal and the first normally closed relay terminal are connected, and the second common relay terminal and the second normally closed terminal are connected. When the closed relay terminal is connected and the operation is not performed on the main switch for other seats after activation, the control unit connects the first common relay terminal and the first normally open relay terminal, and the second The common relay terminal and the second normally open relay terminal are connected.

  Therefore, the window on the other seat side is opened and closed by using the operation switch provided on the other seat side having a contact point for manual operation, and the window on the other seat side is opened and closed by the control device on the driver seat side. In the power window system that performs the above, it is possible to reduce the error in the calculated value of the window position at the start of energization of the control device on the driver's seat side.

  This switch circuit is realized by, for example, a relay or a switch. This power supply is realized by, for example, a battery. This control part is implement | achieved by CPU, for example.

  According to the present invention, the window on the other seat side is opened and closed using the operation switch provided on the other seat side having a contact point for manual operation, and the other seat side is controlled by the control device on the driver seat side. In the power window system that opens and closes the window, an error in the calculated value of the window position at the start of energization of the control device on the driver's seat side can be reduced.

It is a circuit diagram showing one embodiment of a power window system to which the present invention is applied. It is a block diagram which shows the structural example of the function of a control part. It is a figure which shows the state of the power window system before starting of a control part. It is a figure which shows the state of a power window system when closing operation is performed with respect to the sub switch for other seats before starting of a control part. It is a figure which shows the state of a power window system when opening operation is performed with respect to the sub switch for other seats before starting of a control part. It is a figure which shows the state of the power window system immediately after starting of a control part. It is a figure which shows the state of the power window system when manual closing operation is performed with respect to the driver's seat main switch after starting of a control part. It is a figure which shows the state of the power window system when manual opening operation is performed with respect to the driver's seat main switch after starting of a control part. It is a figure which shows the state of the power window system when manual closing operation is performed with respect to the main switch for other seats after starting of a control part. It is a figure which shows the state of a power window system when manual opening operation is performed with respect to the main switch for other seats after starting of a control part. It is a figure which shows the state of a power window system when closing operation is performed with respect to the sub switch for other seats after starting of a control part. It is a figure which shows the state of the power window system when opening operation is performed with respect to the sub switch for other seats after starting of a control part. It is the table | surface which put together the operation | movement of the window of the front passenger seat with respect to operation to the sub switch for other seats before starting after a starting of a control part. It is a figure for demonstrating the detection method of the position of the opening / closing direction of each window of a vehicle. It is a figure for demonstrating the detection method of the pinching of each window of a vehicle.

Hereinafter, modes for carrying out the present invention (hereinafter referred to as embodiments) will be described. The description will be given in the following order.
1. Embodiment 2. FIG. Modified example

<1. Embodiment>
{Configuration example of power window system 1}
FIG. 1 is a circuit diagram showing a configuration example of a power window system 1 which is a first embodiment of a power window system to which the present invention is applied. Hereinafter, a case where the power window system 1 opens and closes four windows on the driver's seat side, the passenger seat side, the right rear seat side, and the left rear seat side of the vehicle will be described.

  In the following, the driver side window, the passenger side window, the right rear seat side window, and the left rear seat side window are simply referred to as the driver seat window, front passenger seat window, and right rear seat window, respectively. , And also referred to as the left rear seat window. Hereinafter, a seat different from the driver's seat is collectively referred to as another seat.

  The power window system 1 includes a window opening / closing control system 11, a motor 12, motors 13a to 13c, a main relay 14, a BCM (Body Control Module) 15, an ignition switch 16, and a power source B.

  The window opening / closing control system 11 includes an operation unit for opening / closing a vehicle window, and controls on / off and direction of the motor current flowing in the motor 12 and the motors 13a to 13c according to the operation on the operation unit, Controls the opening and closing of each window of the vehicle. The motor 12 is a motor that opens and closes the window of the driver's seat, and the motors 13a to 13c are motors that open and close the windows of the passenger seat, the right rear seat, and the left rear seat, respectively.

  The main relay 14 is a switch circuit that opens and closes an electric path from the power source B to the motors 13 a to 13 c under the control of the BCM 15. Specifically, when the ignition switch 16 is turned on, the BCM 15 turns on the contact of the main relay 14. As a result, the motor current can be supplied from the power source B to the motors 13a to 13c, and the windows of the passenger seat and the left and right rear seats can be opened and closed. On the other hand, when the ignition switch 16 is turned off, the BCM 15 turns off the contact of the main relay 14. As a result, the motor current cannot be supplied from the power source B to the motors 13a to 13c, and the windows of the passenger seat and the left and right rear seats cannot be opened and closed.

  The power source B is composed of, for example, a battery provided in the vehicle and supplies power for driving each part of the power window system 1.

  The window opening / closing control system 11 is configured to include a window opening / closing control device 21 and other seat units 22a to 22c. The other seat units 22 a to 22 c are connected to the positive electrode of the power source B through the main relay 14.

  The window opening / closing control device 21 is a device that is provided near the driver's seat (for example, inside the door on the driver's seat side) and opens / closes the driver's seat window and the windows of other seats from the driver's seat. The window opening / closing control device 21 is provided, for example, as one unit in which each component is housed in one housing.

  The other seat unit 22a is provided near the passenger seat (for example, inside the door on the passenger seat side), and is a unit for opening and closing the passenger seat window in the passenger seat.

  The other seat unit 22b is provided near the right rear seat (for example, inside the door on the right rear seat side), and is a unit for opening and closing the window of the right rear seat in the right rear seat.

  The other seat unit 22c is provided near the left rear seat (for example, inside the door on the left rear seat side), and is a unit for opening and closing the window of the left rear seat in the left rear seat.

  The window opening / closing control device 21 includes a control unit 31, a driver seat main switch 32, other seat main switches 33a to 33c, a driver seat control circuit 34, other seat control circuits 35a to 35c, an input circuit 36, and a power source. The circuit 37 is configured to be included.

  The control part 31 is comprised by CPU (Central Processing Unit), for example. The control unit 31 controls the driver seat control circuit 34 and the other seat control circuits 35a to 35c in response to operations on the driver seat main switch 32 and the other seat main switches 33a to 33c, and controls each window of the vehicle. Controls opening and closing. Further, the control unit 31 determines the operation direction of each window (whether open or closed) based on the detection result of the motor current supplied from the driver seat control circuit 34 and the other seat control circuits 35a to 35c, etc. The position of each window in the opening / closing direction (hereinafter simply referred to as the position of each window) and the pinching are detected. Here, sandwiching means that an object is sandwiched between the window and the vehicle body when the window is closed.

  The driver's seat main switch 32 is a momentary operation switch for opening and closing the driver's seat window in the driver's seat. The driver's seat main switch 32 is configured to include contacts 51L, 51U, 51D and 51A, and an input circuit 52.

  The contact 51L is a normally-open contact that is operated when setting a lock function that disables the operation for the other seat sub-switches 91a to 91c for the other seat units 22a to 22c. The contact 51L is turned on when an operation for setting the lock function is performed, and is turned off when an operation for releasing is performed.

  The contact 51U is a normally open contact that is operated when the driver's seat window is closed. The contact 51U is turned on when a closing operation for closing the driver's seat window is performed on the driver's seat main switch 32, and turned off when the closing operation is not performed.

  The contact 51D is a normally open contact that is operated when the driver's seat window is opened. The contact 51D is turned on when an opening operation for opening the driver's seat window is performed on the driver's seat main switch 32, and turned off when the opening operation is not performed.

  The contact 51A is a normally open contact that is operated when the driver's seat window is automatically opened and closed. The contact 51 </ b> A is an opening operation for automatically closing the driver's seat window with respect to the driver's seat main switch 32 (hereinafter referred to as “automatic closing operation”) or an opening operation for automatically opening (hereinafter referred to as “automatic opening operation”). Is turned on when the The contact 51A is turned off, for example, when the driver's seat window is fully closed or fully opened, or when an operation for canceling the automatic operation for automatically opening and closing the driver's seat window is performed.

  Hereinafter, with respect to the automatic closing operation, a closing operation for manually closing the window is also referred to as a manual closing operation, and an opening operation for manually opening the window is also referred to as a manual opening operation.

  The manual operation and automatic operation methods for the driver's seat main switch 32 differ depending on the specifications of the switch. For example, the manual operation and the automatic operation are distinguished by the strength of the operation on the operation knob (not shown) of the driver seat main switch 32. For example, an operation of slightly raising the operation knob is a manual closing operation, and an operation of applying a further force and raising the operation knob one more step is an automatic closing operation. On the other hand, for example, an operation of lightly pressing the operation knob is a manual opening operation, and an operation of applying a further force and pressing the operation knob down one more step is an auto opening operation.

  Alternatively, for example, the manual operation and the automatic operation are distinguished by the operation time for the operation knob of the driver seat main switch. For example, when the time for lifting the operation knob is less than a predetermined time, the manual closing operation is performed, and when the time for lifting the operation knob is equal to or longer than the predetermined time, the automatic closing operation is performed. On the other hand, when the time for pressing the operation knob is less than the predetermined time, the manual opening operation is performed, and when the time for pressing the operation knob is the predetermined time or longer, the automatic opening operation is performed.

  The input circuit 52 supplies a signal indicating the state of each contact of the contacts 51L, 51U, 51D, and 51A to the control unit 31.

  The main switch 33a for other seats is a momentary type operation switch for opening and closing the passenger seat window in the driver seat. The main switch 33a for other seats is configured to include contacts 61Ua, 61Da and 61Aa, and an input circuit 62a.

  The contact 61Ua is a normally open contact that is operated when the passenger seat window is closed. The contact 61Ua is turned on when a closing operation for closing the passenger seat window is performed with respect to the main switch 33a for the other seats, and turned off when the closing operation is not performed.

  The contact 61Da is a normally open contact that is operated when the passenger seat window is opened. The contact 61Da is turned on when an opening operation for opening the passenger seat window is performed with respect to the main switch 33a for the other seats, and turned off when the opening operation is not performed.

  The contact 61Aa is a normally open contact that is operated when the passenger's seat window is automatically opened and closed. The contact 61Aa is turned on when an automatic closing operation or an automatic opening operation is performed on the other seat main switch 33a.

  The manual operation and the automatic operation for the other seat main switch 33a are performed by the same method as the manual operation and the automatic operation for the driver seat main switch 32, for example.

  The input circuit 62a supplies a signal indicating the state of each contact of the contacts 61Ua, 61Da, and 61Aa to the control unit 31.

  The other seat main switch 33b and the other seat main switch 33c are momentary operation switches for opening and closing the windows of the right rear seat and the left rear seat, respectively, in the driver's seat. The other-seat main switch 33b and the other-seat main switch 33c have the same circuit configuration as the other-seat main switch 33a, and the description and illustration thereof are omitted. In addition, the code | symbol which replaced "a" at the end of the code | symbol of each part of the main switch 33a for other seats with "b" is used for the code | symbol of each part of the main switch 33b for other seats which abbreviate | omitted illustration. Further, as the reference numerals of the respective parts of the main switch 33c for other seats (not shown), the reference numerals obtained by replacing “a” at the end of the reference numerals of the main switches 33a for the other seats with “c” are used.

  The driver seat control circuit 34 is a circuit that controls the motor 12. The driver seat control circuit 34 is configured to include a switching circuit 71, a drive circuit 72, an amplifier circuit 73, and a resistor R11.

  The switching circuit 71 includes a relay circuit 71U (only the relay contact 71YU is shown) that is driven when the driver's seat window is closed, and a relay circuit 71D (only the relay contact 71YD is shown) that is driven when the driver's seat window is opened. It is comprised so that it may contain.

  The relay circuit 71U includes a coil 71XU (not shown) and a relay contact 71YU including a switching contact whose state is switched by a drive current flowing through the coil 71XU. A terminal a which is a normally open terminal (NO terminal) of the relay contact 71YU is connected to the positive electrode of the power source B through the wiring L3. A terminal b which is a normally closed terminal (NC terminal) of the relay contact 71YU is connected to the ground via a resistor R11. A terminal c, which is a common terminal (common terminal) of the relay contact 71YU, is connected to one end of the motor 12 via a wiring L1.

  The relay circuit 71D includes a coil 71XD (not shown) and a relay contact 71YD including a switching contact whose state is switched by a drive current flowing through the coil 71XD. A terminal a which is a normally open terminal (NO terminal) of the relay contact 71YD is connected to the positive electrode of the power source B through the wiring L3. A terminal b which is a normally closed terminal (NC terminal) of the relay contact 71YD is connected to the ground via a resistor R11. A terminal c, which is a common terminal (common terminal) of the relay contact 71YD, is connected to the other end of the motor 12 via the wiring L2.

  The drive circuit 72 drives the relay circuits 71U and 71D under the control of the control unit 31. That is, the drive circuit 72 controls the state of the relay contacts 71YU and 71YD by controlling the drive current to the coil 71XU of the relay circuit 71U and the coil 71XD of the relay circuit 71D under the control of the control unit 31. To do.

  The amplifier circuit 73 is connected to both ends of the resistor R11. The amplification circuit 73 amplifies the voltage generated at both ends of the resistor R11 by the motor current of the motor 12 output from the switching circuit 71 and inputs the amplified voltage to the control unit 31. The control unit 31 monitors the motor current of the motor 12 based on the input voltage from the amplifier circuit 73.

  Hereinafter, a direction in which the motor current flows in the order of the relay contact 71YU, the motor 12, and the relay contact 71YD is referred to as a forward direction, and a direction in which the motor current flows in the order of the relay contact 71YD, the motor 12, and the relay contact 71YU is referred to as a reverse direction. Hereinafter, when a forward motor current flows through the motor 12, the driver's seat window moves upward, the driver's seat window closes, and when a reverse motor current flows through the motor 12, the driver's seat The window of the driver moves downward and the driver's seat window opens.

  The other-seat control circuit 35a is a circuit that controls the motor 13a via the other-seat unit 22a. The other seat control circuit 35a includes a switching circuit 81a, a drive circuit 82a, an amplifier circuit 83a, and a resistor R21a.

  The switching circuit 81a includes a relay circuit 81Ua (only the relay contact 81YUa is shown) that is driven when the passenger seat window is closed, and a relay circuit 81Da (only the relay contact 81YDa is shown) that is driven when the passenger seat window is opened. It is comprised so that it may contain.

  The relay circuit 81Ua includes a coil 81XUa (not shown) and a relay contact 81YUa including a switching contact whose state is switched by a drive current flowing through the coil 81XUa. A terminal a which is a normally open terminal (NO terminal) of the relay contact 81YUa is connected to the ground via a resistor R21a. A terminal b, which is a normally closed terminal (NC terminal) of the relay contact 81YUa, is connected to the positive electrode of the power source B via the wiring L6 and the main relay 14. A terminal c, which is a common terminal (common terminal) of the relay contact 81YUa, is connected to a terminal b of the contact 91Ua of the other-seat sub switch 91a via a wiring L4a.

  The relay circuit 81Da includes a coil 81XDa (not shown) and a relay contact 81YDa including a switching contact whose state is switched by a drive current flowing through the coil 81XDa. A terminal a which is a normally open terminal (NO terminal) of the relay contact 81YDa is connected to the ground via a resistor R21a. A terminal b, which is a normally closed terminal (NC terminal) of the relay contact 81YDa, is connected to the positive electrode of the power source B through the wiring L6 and the main relay 14. A terminal c which is a common terminal (common terminal) of the relay contact 81YDa is connected to a terminal b of the contact 91Da of the other-seat sub switch 91a via a wiring L5a.

  The terminal b of the relay contact 81YUa and the terminal b of the relay contact 81YDa can be directly connected to the positive electrode of the power supply B without going through the main relay 14.

  The drive circuit 82a drives the relay circuits 81Ua and 81Da under the control of the control unit 31. That is, the drive circuit 82a controls the drive current to the coil 81XUa of the relay circuit 81Ua and the coil 81XDa of the relay circuit 81Da under the control of the control unit 31, and controls the state of the relay contacts 81YUa and 81YDa.

  The amplifier circuit 83a is connected to both ends of a resistor R21a serving as a motor current detector that detects a motor current flowing through the motor 13a. The amplifier circuit 83a amplifies the voltage generated at both ends of the resistor R21a by the motor current of the motor 13a output from the switching circuit 81a, and inputs the amplified voltage to the control unit 31. The controller 31 monitors the motor current of the motor 13a based on the input voltage from the amplifier circuit 83a.

  The other-seat control circuit 35b is a circuit that controls the motor 13b via the other-seat unit 22b, and the other-seat control circuit 35c controls the motor 13c via the other-seat unit 22c. Circuit. The circuit configurations of the other-seat control circuit 35b and the other-seat control circuit 35c are the same as those of the other-seat control circuit 35a, and the description and illustration thereof are omitted. In addition, the code | symbol which replaced "a" at the end of the code | symbol of each part of the control circuit 35a for other seats with "b" is used for the code | symbol of each part of the control circuit 35b for other seats which abbreviate | omitted illustration. Further, as the reference numerals of the parts of the other-seat control circuit 35c (not shown), the reference numerals obtained by replacing “a” at the end of the reference numerals of the respective parts of the other-seat control circuit 35c with “c” are used.

  The input circuit 36 is connected between the control unit 31 and the wiring L6. When the main relay 14 is turned on, power is supplied to the input circuit 36 via the wiring L6. Then, the input circuit 36 outputs a signal to the control unit 31 to start the control unit 31 from a sleep state to a state where normal operation is possible. Conversely, when the main relay 14 is turned off, no signal is supplied from the input circuit 36 to the control unit 31, so that the control unit 31 shifts from a state in which normal operation is possible to a dormant state.

  Note that it takes time to perform a predetermined process such as initialization before the control unit 31 shifts from the hibernation state to a state where normal operation is possible. Here, the activation of the control unit 31 means that the motor current of the motors 13a to 13c that opens and closes the windows of the other seats can be monitored.

  The power supply circuit 37 is connected to the positive electrode of the power supply B via the wiring L3, and supplies power from the power supply B to each part of the window opening / closing control device 21.

  The other seat unit 22a is configured to include the other seat sub-switch 91a.

  The other seat sub switch 91a is a momentary type operation switch for opening and closing the passenger seat window in the passenger seat. The other seat sub switch 91a is configured to include contacts 91Ua and 91Da.

  The contact 91Ua is a switching contact that is switched when the other seat sub switch 91a is operated to close the passenger seat window. A terminal a which is a normally open terminal (NO terminal) of the contact 91 </ b> Ua is connected to the positive electrode of the power supply B via the wiring L <b> 6 and the main relay 14. A terminal b which is a normally closed terminal (NC terminal) of the contact 91Ua is connected to a terminal c of the relay contact 81YUa via a wiring L4a. A terminal c, which is a common terminal (common terminal) of the contact 91Ua, is connected to one end of the motor 13a via a wiring L7a. For example, when the closing operation for closing the passenger seat window is performed with respect to the sub switch 91a for the other seats, the terminal a and the terminal c are connected, and when the closing operation is not performed, the terminal b and the terminal c is connected.

  The contact 91Da is a switching contact that is switched when the other seat sub-switch 91a is operated to open the passenger seat window. A terminal a which is a normally open terminal (NO terminal) of the contact 91Da is connected to the positive electrode of the power source B through the wiring L6 and the main relay 14. A terminal b which is a normally closed terminal (NC terminal) of the contact 91Da is connected to a terminal c of the relay contact 81YDa via a wiring L5a. A terminal c, which is a common terminal (common terminal) of the contact 91Da, is connected to the other end of the motor 13a via a wiring L8a. For example, when the opening operation for opening the passenger seat window is performed with respect to the sub switch 91a for the other seat, the terminal a and the terminal c are connected, and when the opening operation is not performed, the terminal b and the terminal c is connected.

  Hereinafter, a direction in which the motor current flows in the order of the contact 91Ua, the motor 13a, and the contact 91Da is referred to as a forward direction, and a direction in which the motor current flows in the order of the contact 91Da, the motor 13a, and the contact 91Ua is referred to as a reverse direction. Hereinafter, when a forward motor current flows through the motor 13a, the passenger seat window moves upward, the passenger seat window closes, and when a reverse motor current flows through the motor 13a, the passenger seat The window of the passenger seat moves downward and the passenger seat window opens.

  The circuit configuration of the other seat units 22b and 22c is the same as that of the other seat unit 22a, and a description thereof will be omitted.

  Here, the window opening / closing control device 21 and the motor 12 are connected by two wires L1 and L2, and the window opening / closing control device 21 and each of the other seat units 22a to 22c are connected to the wires L4a to L4c and the wires. They are connected by six wires L5a to L5c. In other words, the window opening / closing control device 21 can be easily connected to the motor 12 and the other seat units 22a to 22c provided in the vehicle with less wiring.

  In FIG. 1, the window opening / closing control device 21 and the other seat units 22a to 22c are connected via the wiring L6. The wiring L6 is connected to the main relay 14, the window opening / closing control device 21, and the other seats. Units 22a to 22c are connected. Therefore, it is not always necessary to directly connect the window opening / closing control device 21 and the other seat units 22a to 22c with the wiring L6.

  Hereinafter, when it is not necessary to distinguish the motors 13a to 13c individually, they are simply referred to as a motor 13. In addition, hereinafter, when there is no need to separately distinguish the other seat units 22a to 22c, the other seat main switches 33a to 33c, and the other seat control circuits 35a to 35c, the other seat units 22, These are referred to as a main switch 33 for other seats and a control circuit 35 for other seats.

  Further, hereinafter, when it is not necessary to individually distinguish the respective units in the other seat units 22a to 22c, the other seat main switches 33a to 33c, and the other seat control circuits 35a to 35c, the suffix "a" to A code excluding “c” is used. For example, when it is not necessary to individually distinguish the other seat sub-switches 91a to 91c from the other seat units 22a to 22c, they are simply referred to as the other seat sub-switch 91.

  Further, hereinafter, connecting the terminal a and the terminal c of the switching contact (turning on the contact a) is referred to as turning on the switching contact. For example, connecting the terminal a and the terminal c of the contact 91Ua is referred to as turning on the contact 91Ua. Further, hereinafter, connecting the terminal b and the terminal c of the switching contact (turning on the b contact) is referred to as turning off the switching contact. For example, connecting the terminal b and the terminal c of the contact 91Ua is referred to as turning off the contact 91Ua.

{Configuration example of function of control unit 31}
FIG. 2 shows a configuration example of the function of the control unit 31. The control unit 31 is configured to include an operation detection unit 101, a window position detection unit 102, a pinching detection unit 103, and an opening / closing control unit 104. In this figure, only the functions necessary for the following description are shown as a part of the functions of the control unit 31.

  The operation detection unit 101 detects an operation on the driver seat main switch 32 and the other seat main switches 33a to 33c based on signals supplied from the input circuits 52 and 62a to 62c. Further, the operation detection unit 101 monitors the motor currents of the motors 13a to 13c based on the input voltages from the amplifier circuits 83a to 83c. And the operation detection part 101 detects operation with respect to the sub switches 91a thru | or 91c for other seats based on the motor current of the motors 13a thru | or 13c. The operation detection unit 101 supplies the detection result to each unit of the control unit 31.

  The window position detector 102 monitors the motor currents of the motor 12 and the motors 13a to 13c based on the input voltages from the amplifier circuits 73 and 83a to 83c. The window position detection unit 102 detects the window of each seat of the vehicle based on the motor current of the motor 12 and the motors 13a to 13c and the detection result of the operation on the driver seat main switch 32 and the other seat main switches 33a to 33c. The position and the operation direction of the are detected. The window position detection unit 102 supplies the detection result to each unit of the control unit 31. Moreover, the window position detection part 102 memorize | stores the newest position of each window.

  The pinch detection unit 103 monitors the motor currents of the motor 12 and the motors 13a to 13c based on the input voltages from the amplifier circuits 73 and 83a to 83c. The pinch detection unit 103 detects the motor current of the motor 12 and the motors 13a to 13c, the detection result of the operation on the driver's seat main switch 32 and the other seat main switches 33a to 33c, and the position and operation of the window of each seat of the vehicle. Based on the detection result of the direction, the pinching of each window is detected. The pinch detection unit 103 supplies the detection result to each unit of the control unit 31.

  The opening / closing control unit 104 detects each of the vehicle based on the operation on the driver seat main switch 32 and the other seat main switches 33a to 33c, the position and operation direction of each window, and the detection result of whether each window is caught. Controls opening and closing of windows. Specifically, the opening / closing control unit 104 controls the driving circuit 72 and controls the relay circuits 71U and 71D, thereby controlling the motor current of the motor 12 and controlling the opening / closing of the driver's seat window. The opening / closing control unit 104 controls the drive circuits 82a to 82c and controls the relay circuits 81Ua to 81Uc and 81Da to 81Dc, thereby controlling the motor current of the motors 13a to 13c, and the passenger seat and the left and right rear parts. Controls the opening and closing of the seat window.

{Basic operation of power window system 1}
Next, the basic operation of the power window system 1 will be described with reference to FIGS. In FIGS. 3 to 12, portions and symbols that are not particularly necessary for the description are omitted.

(Operation of the power window system 1 until the control unit 31 is activated)
First, the operation of the power window system 1 from when the main relay 14 is turned on to when the control unit 31 is activated will be described with reference to FIGS. 3 to 6.

  FIG. 3 shows the state of the power window system 1 when the control unit 31 has not yet been started after the main relay 14 is turned on.

  When the main relay 14 is turned on, the power supply B and each other seat unit 22 are electrically connected via the main relay 14 and the wiring L6. As a result, each motor 13 is in a state where it can be electrically connected to the power supply B via each other seat unit 22.

  On the other hand, since the control unit 31 is not activated, the drive circuit 82a does not drive the switching circuit 81a. Therefore, the relay contact 81YUa is turned off, and the terminal b and the terminal c are connected. Further, the relay contact 81YDa is turned off, and the terminal b and the terminal c are connected.

  In this state, the terminal a of the contact 91Ua and the terminal a of the contact 91Da of the other-seat sub switch 91a are electrically connected to the positive electrode of the power supply B through the main relay 14. The terminal b of the contact 91Ua of the sub switch 91a for the other seat is electrically connected to the positive electrode of the power supply B via the terminal b of the main relay 14 and the relay contact 81YUa. The terminal b of the contact 91Da of the sub switch 91a for the other seat is electrically connected to the positive electrode of the power supply B via the terminal b of the main relay 14 and the relay contact 81YDa. Therefore, the terminal a and the terminal b of the contact 91Ua and the terminal a and the terminal b of the contact 91Da have substantially the same potential as the positive electrode of the power supply B.

  FIG. 4 shows a state of the power window system 1 when the closing operation is performed on the other-seat sub switch 91a after the main relay 14 is turned on and before the control unit 31 is activated.

  When the closing operation is performed on the other-seat sub switch 91a, as shown in FIG. 4, the contact 91Ua is turned on, and the terminal a and the terminal c are connected. However, since both ends of the motor 13a are almost at the same potential and no motor current flows, the passenger seat window does not move.

FIG. 5 shows a state of the power window system 1 when the opening operation is performed on the other-seat sub switch 91a after the main relay 14 is turned on and before the control unit 31 is activated.
When the opening operation is performed on the other-seat sub switch 91a, as shown in FIG. 4, the contact 91Da is turned on, and the terminal a and the terminal c are connected. However, since both ends of the motor 13a are almost at the same potential and no motor current flows, the passenger seat window does not move.

  Thus, before the control unit 31 is activated, the operation of the other seat sub switch 91a is disabled, and the opening and closing of the passenger seat window by the other seat sub switch 91a is prohibited.

  Although not described in detail, the other-seat control circuit 35b and the other-seat control circuit 35c perform the same operation as the other-seat control circuit 35a. This prohibits the opening and closing of the left and right rear seat windows by the other seat sub-switches 91b and 91c before the activation of the control unit 31.

  In addition, the control unit 31 cannot detect an operation on the driver seat main switch 32 and the other seat main switch 33 and cannot drive the drive circuit 72 and the drive circuit 82 before the activation. Accordingly, the operations on the driver seat main switch 32 and the other seat main switch 33 are invalid, and the opening and closing of the windows of the vehicle by the driver seat main switch 32 and the other seat main switch 33 is prohibited.

  FIG. 6 shows the state of the power window system 1 immediately after the control unit 31 is activated.

  When the control unit 31 is activated, the open / close control unit 104 energizes the coil 81XUa (not shown) of the switching circuit 81a via the drive circuit 82a, turns on the relay contact 81YUa, and connects the terminals a and c. Let Further, the open / close control unit 104 energizes a coil 81XDa (not shown) of the switching circuit 81a through the drive circuit 82a, turns on the relay contact 81YDa, and connects the terminal a and the terminal c. As a result, as will be described later with reference to FIGS. 11 and 12, the passenger seat window can be opened and closed by the other seat sub-switch 91a.

  Although not described in detail, the other-seat control circuit 35b and the other-seat control circuit 35c perform the same operation as the other-seat control circuit 35a. As a result, the left and right rear seat windows can be opened and closed by the other seat sub-switches 91b and 91c.

(Operation of the power window system 1 while the control unit 31 is operating)
Next, the operation of the power window system 1 in which the control unit 31 is operating will be described with reference to FIGS. That is, the operation of the power window system 1 from when the control unit 31 is activated until the power window system 1 enters the state shown in FIG. 6 described above and before the control unit 31 stops will be described.

(When closing operation is performed on the driver's seat main switch 32)
First, an operation when the closing operation is performed on the driver's seat main switch 32 will be described. FIG. 7 shows a state of the power window system 1 when a manual closing operation is performed on the driver's seat main switch 32.

  When a manual closing operation is performed on the driver's seat main switch 32, the contact 51U is turned on. When the operation detection unit 101 detects that the contact 51U is turned on, the opening / closing control unit 104 turns on the relay contact 71YU via the drive circuit 72. Thereby, a current flows from the power source B to the ground via the terminal a of the relay contact 71YU, the motor 12, the terminal b of the relay contact 71YD, and the resistor R11. As a result, a forward motor current flows through the motor 12, and the driver's seat window is closed.

  On the other hand, when the manual closing operation on the driver's seat main switch 32 is stopped, the contact 51U is turned off. When the operation detection unit 101 detects that the contact 51U is turned off, the opening / closing control unit 104 turns off the relay contact 71YU via the drive circuit 72. As a result, the supply of motor current to the motor 12 is stopped, and the closing operation of the driver's seat window is stopped.

  Further, when the automatic closing operation is performed on the driver's seat main switch 32, the contact 51U and the contact 51A are turned on. Then, as in the case where the manual closing operation is performed, the relay contact 71YU is turned on, the forward motor current flows through the motor 12, and the driver's seat window is closed. Thereafter, even when the automatic closing operation on the driver's seat main switch 32 is stopped and the contact 51U and the contact 51A are turned off, the opening / closing control unit 104 does not pass through the drive circuit 72 until the driver's seat window is fully closed. The relay contact 71YU is kept on. As a result, the driver's seat window is automatically fully closed.

  For example, during the automatic closing operation of the driver's seat window, a manual opening operation or an automatic opening operation is performed on the driver seat main switch 32, and when the operation detection unit 101 detects that the contact 51D is turned on, The opening / closing control unit 104 turns off the relay contact 71YU via the drive circuit 72. Thereby, the automatic closing operation of the driver's seat stops.

(When opening operation is performed on the driver's seat main switch 32)
Next, the operation when the opening operation is performed on the driver's seat main switch 32 will be described. FIG. 8 shows the state of the power window system 1 when a manual opening operation is performed on the driver's seat main switch 32.

  When a manual opening operation is performed on the driver's seat main switch 32, the contact 51D is turned on. When the operation detection unit 101 detects that the contact 51D is turned on, the opening / closing control unit 104 turns on the relay contact 71YD via the drive circuit 72. Thereby, a current flows from the power source B to the ground via the terminal a of the relay contact 71YD, the motor 12, the terminal b of the relay contact 71YU, and the resistor R11. As a result, a reverse motor current flows through the motor 12, and the driver's seat window opens.

  On the other hand, when the manual opening operation for the driver's seat main switch 32 is stopped, the contact 51D is turned off. When the operation detection unit 101 detects that the contact 51D is turned off, the opening / closing control unit 104 turns off the relay contact 71YD via the drive circuit 72. As a result, the supply of the motor current to the motor 12 is stopped, and the opening operation of the driver's seat window is stopped.

  Further, when the automatic opening operation is performed on the driver's seat main switch 32, the contact 51D and the contact 51A are turned on. Then, similarly to the case where the manual opening operation is performed, the relay contact 71YD is turned on, the motor current in the reverse direction flows through the motor 12, and the driver's seat window opens. After that, even if the automatic opening operation for the driver's seat main switch 32 is stopped and the contact 51D and the contact 51A are turned off, the opening / closing control unit 104 continues through the drive circuit 72 until the driver's seat window is fully opened. The relay contact 71YD is kept on. This automatically opens the driver's seat window.

  For example, during the automatic opening operation of the driver's seat window, a manual closing operation or an automatic closing operation is performed on the driver seat main switch 32, and when the operation detection unit 101 detects the ON of the contact 51U, The opening / closing control unit 104 turns off the relay contact 71YD via the drive circuit 72. Thereby, the automatic opening operation of the driver's seat is stopped.

(When the other seat main switch 33a is closed)
Next, the operation when the closing operation is performed on the other seat main switch 33a will be described. FIG. 9 shows the state of the power window system 1 when a manual closing operation is performed on the other seat main switch 33a.

  When a manual closing operation is performed on the other seat main switch 33a, the contact 61Ua is turned on. When the operation detection unit 101 detects that the contact 61Ua is turned on, the open / close control unit 104 maintains the energization of the coil 81XDa via the drive circuit 82a and the energization of the coil 81XUa while the relay contact 81YDa is kept on. Is stopped, the relay contact 81YUa is turned off, and the terminals b and c are connected. As a result, a current flows from the power source B to the ground via the terminal b of the relay contact 81YUa, the terminal b of the contact 91Ua, the motor 13a, the terminal b of the contact 91Da, the terminal a of the relay contact 81YDa, and the resistor R21a. . Accordingly, forward motor current flows through the motor 13a, and the passenger seat window is closed.

  On the other hand, when the manual closing operation for the other seat main switch 33a is stopped, the contact 61Ua is turned off. When the operation detection unit 101 detects that the contact 61Ua is turned off, the opening / closing control unit 104 maintains the energization to the coil 81XDa via the drive circuit 82a, and energizes the coil 81XUa with the relay contact 81YDa turned on. The relay contact 81YUa is turned on to connect the terminal a and the terminal c. As a result, the supply of the motor current to the motor 13a is stopped, and the closing operation of the passenger seat window is stopped.

  Further, when the automatic closing operation is performed on the other seat main switch 33a, the contact 61Ua and the contact 61Aa are turned on. Then, similarly to the case where the manual closing operation is performed, the relay contact 81YUa is turned off, the forward motor current flows through the motor 13a, and the passenger seat window is closed. Thereafter, even when the automatic closing operation for the main switch 33a for the other seat is stopped and the contact 61Ua and the contact 61Aa are turned off, the opening / closing control unit 104 does not pass through the drive circuit 82a until the passenger seat window is fully closed. The relay contact 81YUa is turned off and the relay contact 81YDa is kept on. As a result, the passenger seat window is automatically fully closed.

  For example, during the automatic closing operation of the passenger seat window, a manual opening operation or an automatic opening operation is performed on the main switch 33a for the other seats, and when the operation detection unit 101 detects that the contact 61Da is turned on, The open / close control unit 104 turns on the relay contact 81YUa while keeping the relay contact 81YDa on, as in the case where the manual closing operation on the main switch 33a for the other seats is stopped. Thereby, the automatic closing operation of the passenger seat is stopped.

(When the opening operation is performed on the main switch 33a for other seats)
Next, an operation when the opening operation is performed on the other seat main switch 33a will be described. FIG. 10 shows the state of the power window system 1 when a manual opening operation is performed on the other seat main switch 33a.

  When a manual opening operation is performed on the other seat main switch 33a, the contact 61Da is turned on. When the operation detection unit 101 detects that the contact 61Da is turned on, the open / close control unit 104 maintains the energization to the coil 81XUa via the drive circuit 82a, and the energization to the coil 81XDa with the relay contact 81YUa turned on. Is stopped, the relay contact 81YDa is turned off, and the terminals b and c are connected. Thereby, a current flows from the power source B to the ground through the terminal b of the relay contact 81YDa, the terminal b of the contact 91Da, the motor 13a, the terminal b of the contact 91Ua, the terminal a of the relay contact 81YUa, and the resistor R21a. . Therefore, a reverse motor current flows through the motor 13a, and the passenger seat window opens.

  On the other hand, when the manual opening operation for the other seat main switch 33a is stopped, the contact 61Da is turned off. When the operation detection unit 101 detects that the contact 61Da is turned off, the open / close control unit 104 maintains the energization to the coil 81XUa via the drive circuit 82a, and energizes the coil 81XDa with the relay contact 81YUa turned on. Then, the relay contact 81YDa is turned on to connect the terminal a and the terminal c. Thereby, the supply of the motor current to the motor 13a is stopped, and the opening operation of the passenger seat window is stopped.

  Further, when the automatic opening operation is performed on the other seat main switch 33a, the contact 61Da and the contact 61Aa are turned on. Then, similarly to the case where the manual opening operation is performed, the relay contact 81YDa is turned off, the motor current in the reverse direction flows through the motor 13a, and the passenger seat window is opened. Thereafter, even when the automatic opening operation for the main switch 33a for the other seat is stopped and the contact 61Da and the contact 61Aa are turned off, the opening / closing control unit 104 continues through the drive circuit 82a until the passenger seat window is fully opened. The state where relay contact 81YUa is turned on and relay contact 81YDa is turned off is maintained. Thus, the passenger seat window is automatically fully opened.

  For example, during the automatic opening operation of the passenger seat window, a manual closing operation or an automatic closing operation is performed on the main switch 33a for the other seats, and the operation detection unit 101 detects that the contact 61Ua is turned on, The open / close control unit 104 turns on the relay contact 81YDa while keeping the relay contact 81YUa on, as in the case where the manual opening operation on the main switch 33a for other seats is stopped. Thereby, the automatic opening operation of the passenger seat is stopped.

  In addition, although detailed description is omitted, even when an operation is performed on the main switch 33b or 33c for other seats, the window of the right or left rear seat can be opened and closed by the same method.

(When closing operation is performed on the sub switch 91a for other seats)
Next, the operation when the closing operation is performed on the other-seat sub switch 91a will be described. FIG. 11 shows a state of the power window system 1 when the closing operation is performed on the other-seat sub switch 91a.

  When the closing operation is performed on the other-seat sub switch 91a, the contact 91Ua is turned on. In addition, as described above with reference to FIG. 6, the relay contacts 81YUa and 81YDa are turned on after the control unit 31 is activated. Accordingly, when the contact 91Ua is turned on, the power source B is connected to the ground via the main relay 14, the terminal a of the contact 91Ua, the motor 13a, the terminal b of the contact 91Da, the terminal a of the relay contact 81YDa, and the resistor R21a. Current flows. As a result, a forward motor current flows through the motor 13a, and the passenger seat window closes.

  On the other hand, when the closing operation for the other seat sub switch 91a is stopped, the contact 91Ua is turned off. As a result, the supply of the motor current to the motor 13a is stopped, and the closing operation of the passenger seat window is stopped.

(When the opening operation is performed on the other-seat sub switch 91a)
Next, an operation when the opening operation is performed on the other-seat sub switch 91a will be described. FIG. 12 shows a state of the power window system 1 when an opening operation is performed on the other-seat sub switch 91a.

  When the opening operation is performed on the other-seat sub switch 91a, the contact 91Da is turned on. In addition, as described above with reference to FIG. 6, the relay contacts 81YUa and 81YDa are turned on after the control unit 31 is activated. Therefore, when the contact 91Da is turned on, the power source B is connected to the ground via the main relay 14, the terminal a of the contact 91Da, the motor 13a, the terminal b of the contact 91Ua, the terminal a of the relay contact 81YUa, and the resistor R21a. Current flows. As a result, a reverse motor current flows to the motor 13a, and the passenger seat window opens.

  On the other hand, when the opening operation for the other-seat sub switch 91a is stopped, the contact 91Da is turned off. Thereby, the supply of the motor current to the motor 13a is stopped, and the opening operation of the passenger seat window is stopped.

  Although a detailed description is omitted, even when an operation is performed on the other seat sub switch 91b or 91c, the window of the right or left rear seat can be opened and closed by the same method.

  FIG. 13 is a table summarizing the operations of the windows of the other seats with respect to the operations on the sub-switches 91 for other seats before and after the activation of the control unit 31.

  As described above, before the control unit 31 is activated, both the closing operation and the opening operation for each other seat sub-switch 91 are disabled, and the opening / closing operation of the other seat window is prohibited. On the other hand, after the control unit 31 is activated, the operation for the sub-seat 91 for the other seat becomes effective, and the opening / closing operation of the window for the other seat becomes possible.

  As described above, the sub-seat for other seats before the control unit 31 is started up without adding wiring between the window opening / closing control device 21 and the other-seat unit 22 or changing the configuration of the other seat unit 22. Opening and closing of the windows of other seats by the switch 91 can be prohibited.

  In addition, since the controller 31 cannot recognize the state of the contact 51L for setting the lock function in the state before activation, the controller 31 cannot effectively operate the lock function for the other seat sub switch 91. However, before the control unit 31 is activated, the opening / closing operation of the other-seat windows by the other-seat sub-switches 91 is prohibited. Therefore, when the other-seat sub-switch 91 is operated before the control unit 31 is activated. Even though the lock function is set, the windows of other seats are prevented from being opened and closed.

  Furthermore, as will be described later, the detection accuracy of the position of the window of the other seat can be improved.

{Method for detecting the position of each window of the vehicle}
Next, an example of a method for detecting the position of each window of the vehicle will be described with reference to FIG.

  The window position detection unit 102 constantly monitors the motor currents flowing through the motor 12 and the motors 13a to 13c based on the input voltages from the amplifier circuits 73 and 83a to 83c. Further, the motor current flowing through each motor includes a ripple. And in the state where pinching has not occurred, the ripple waveform of the motor current is a stable waveform as shown in the upper graph of FIG.

  The window position detection unit 102 converts the ripple of the motor current into a pulse train as shown in the lower graph of FIG. Then, the window position detection unit 102 calculates the rotation speed of each motor based on the pulse train of FIG. 14, and detects the positions of the windows of the driver's seat and other seats based on the calculated rotation speed of the motor. For this reason, the sensor for detecting the position of each window becomes unnecessary. Moreover, the window position detection part 102 memorize | stores the newest position of each window.

  Here, since the signals indicating the states of the contact 91Ua and the contact 91Da of the other-seat sub switch 91a are not supplied to the control unit 31, the control unit 31 cannot detect the states of the contact 91Ua and the contact 91Da. Therefore, the operation detection unit 101 cannot directly detect whether the opening operation or the closing operation is performed on the other-seat sub switch 91a based on the state of the contact 91Ua and the contact 91Da.

  On the other hand, when the passenger's seat window is closed, the load applied to the motor 13a is increased by raising the window, compared to when the passenger seat window is opened. Therefore, when the window is closed, the motor current flowing through the motor 13a is larger than when the window is opened.

  Thus, when the passenger seat sub-switch 91a is used to open and close the passenger seat window, the operation detection unit 101 operates the operation direction (closed) of the passenger seat sub-switch 91a based on the magnitude of the motor current of the motor 13a. Operation or opening operation). Similarly, the window position detection unit 102 detects the operation direction of the window (whether it is closed or open) based on the magnitude of the motor current of the motor 13a.

  The same applies to the case where the window for the right rear seat is opened / closed by the sub switch 91b for the other seat and the case where the window for the left rear seat is opened / closed by the sub switch 91c for the other seat.

  Each of the other seat control circuits 35 may be provided with two sets of resistors and amplifier circuits for detecting the motor current. For example, the resistor connected to the terminal a of the relay contact 81YUa and the terminal a of the relay contact 81YDa of the other-seat control circuit 35a may be provided individually without being shared.

  Specifically, a first resistor is provided between the terminal a of the relay contact 81YUa and the ground, and an amplifier circuit that amplifies the voltage across the first resistor is provided. Further, a second resistor is provided between the terminal a of the relay contact 81YDa and the ground, and an amplifier circuit for amplifying the voltage at both ends of the second resistor is provided. As a result, when the passenger seat window opens, a current flows from the terminal a of the relay contact 81YUa to the ground through the first resistor. When the passenger seat window closes, current flows from the terminal a of the relay contact 81YDa to the ground via the second resistor. This makes it possible to more reliably detect the operating direction of the other seat sub switch 91a and the operating direction of the passenger seat window.

  The same applies to the other seat control circuits 35b and 35c.

  When the window is opened and closed by the driver seat main switch 32 and the other seat main switches 33a to 33c, a signal indicating the contact state of each switch is supplied to the control unit 31. Therefore, the window position detection unit 102 can detect the operation direction of each window regardless of the magnitude of the motor current. Similarly, when the window is opened and closed by the driver's seat main switch 32 and the other seat main switches 33a to 33c, the operating direction of the window may be detected based on the magnitude of the motor current. Is possible.

  Here, since the window position detection unit 102 is included in the control unit 31, the position of the window of the other seat cannot be detected before the control unit 31 is activated. On the other hand, as described above, since the opening / closing of the window of the other seat by the other seat sub-switch 91 is prohibited before the control unit 31 is started, before the window position detecting unit 102 becomes operable, The position of the seat window does not change. Therefore, the other-seat sub-switch 91 is operated before the control unit 31 is activated, and the other-seat window moves, and the position of the other-seat window recognized by the window position detection unit 102 and the actual window position are detected. It is possible to prevent a deviation from occurring. As a result, the detection accuracy of the position of the window of the other seat is improved.

{Detection method of each vehicle window}
Next, with reference to FIG. 15, an example of a method for detecting pinching of each window will be described.

  When pinching occurs, the ripple of the motor current becomes an unstable waveform in which the current level increases and the period of the ripple extends, as shown in the upper graph of FIG. When this ripple is converted into a pulse train, a pulse train as shown in the lower graph of FIG. 16 is obtained.

  Here, the pinch detection unit 103 monitors the change in the ripple period T, and determines that pinch has occurred when the period T becomes equal to or greater than a certain value. Alternatively, instead of the cycle T, it may be determined that the pinching has occurred when the width W of the pulse becomes a certain value or more. In this way, pinching can be detected based on the ripple of the motor current.

  The pinching detection unit 103 causes pinching based on the detection result of the operation on the driver's seat main switch 32 and each other's main switch 33 and the detection result of the window position and the operation direction of each seat. If it is determined that the situation cannot be obtained, it is determined that no pinching has occurred even if the above condition is satisfied. For example, when a window is opened.

  As described above, the window opening / closing control device 21 controls the windows from the driver's seat to the driver's seat and other seats (automatic opening / closing operation) with a simple configuration in which no control unit is provided in any seat other than the driver's seat and wiring is reduced. And a manual opening / closing operation). Further, since the function can be easily improved by simply connecting the window opening / closing control device 21 without changing each other seat unit 22, the window opening / closing control device 21 can be used as a retrofitting part or an optional product. It becomes easy to provide. Further, by monitoring the motor current of the motor 12 of each seat and the motors 13a to 13c by the control unit 31 of the window opening / closing control device 21, the position and pinching of the window of each seat can be detected without providing sensors. Is possible.

  Moreover, the error of the calculated value of the window position of the other seat at the start of energization of the window opening / closing control device 21 can be reduced, and the detection accuracy of the window position can be improved. Furthermore, before the energization of the window opening / closing control device 21 is started, it is possible to prevent the windows of other seats from being opened and closed by operating the sub switch 91 for other seats even though the lock function is set. Can do.

<2. Modification>
In the above description, an example in which the number of windows for other seats is three has been shown, but the number of windows for other seats can be arbitrarily set. The number of motors 13, the other seat unit 22, the other seat main switch 33, and the other seat control circuit 35 may be increased or decreased according to the number of other seat windows.

  Further, instead of the main relay 14, for example, a manual switch or an ignition switch 16 can be used directly.

  The present invention can be applied to a vehicle having a power window function regardless of the type of vehicle.

  The embodiments of the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Power window system 11 Window opening / closing control system 12, 13a thru | or 13c Motor 14 Main relay 15 BCM
16 Ignition Switch 21 Window Opening / Closing Control Device 22a to 22c Other Seat Unit 31 Control Unit 32 Driver Seat Main Switch 33a to 33c Other Seat Main Switch 34 Driver Seat Control Circuit 35a to 35c Other Seat Control Circuit 51L, 51U, 51D, 51A, 61Ua to 61Uc, 61Da to 61Dc, 61Aa to 61Ac Contact 71 Switching circuit 71U, 71D Relay circuit 71XU, 71XD Coil 71YU, 71YD Relay contact 72 Drive circuit 73 Amplifier circuit 81a to 81c Switching circuit 81XUa to 81DUc81 81XDc Coil 81YUa to 81YUc, 81YDa to 81YDc Relay contact 82a to 82c Drive circuit 83a to 83c Amplifier circuit 91a to 91c Sub-seat for other seats 91Ua Itaru 91Uc, 91Da to 91Dc contacts 101 operation detection unit 102 window position detecting unit 103 entrapment detection unit 104 switching control unit L1 to L8c wiring B Power

Claims (3)

In a window opening / closing control system for controlling opening / closing of a window on the driver's seat side of the vehicle and a window on the other seat side different from the driver's seat,
A unit for other seats provided on the other seat side and connected to the positive electrode of the power source of the vehicle through a switch circuit that opens and closes an electric circuit;
A window opening / closing control device provided on the driver's seat side,
The other seat unit is
A momentary-type sub-seat sub-switch having a first contact operated when closing the window on the other seat side and a second contact operated when opening the window on the other seat side,
The first contact is
A first common terminal connected to one end of a motor for other seats that opens and closes the window on the other seat side;
A first normally open terminal connected to the positive electrode of the power source via the first wiring and the switch circuit, and connected to the first common terminal by an operation of closing the window on the other seat side;
A first normally closed terminal;
The second contact is
A second common terminal connected to the other end of the other seat motor;
A second normally open terminal connected to the positive terminal of the power source via the first wiring and the switch circuit, and connected to the second common terminal by an operation of opening the window on the other seat side;
A second normally closed terminal,
The window opening / closing control device comprises:
A driver's seat main switch for opening and closing the driver side window;
A third contact operated when closing the window on the other seat side and a fourth contact operated when opening the window on the other seat side, and opening and closing the window on the other seat side Main switch for other seats to
A first relay circuit that has a first relay contact and is driven when the other seat side window is closed;
A second relay circuit that has a second relay contact and is driven when the other seat side window is opened;
The switch circuit is activated as the switch circuit is turned on, and stopped as the switch circuit is turned off, and signals are input from the driver seat main switch and the other seat main switch, A control unit that controls the first relay circuit and the second relay circuit in accordance with an operation of a main switch and the other seat main switch,
The first relay contact is
A first common relay terminal connected to the first normally closed terminal by a second wiring;
A first normally open relay terminal connected to ground;
A first normally closed relay terminal connected to the positive electrode of the power source,
The second relay contact is
A second common relay terminal connected to the second normally closed terminal by a third wiring;
A second normally open relay terminal connected to ground;
A second normally closed relay terminal connected to the positive electrode of the power source,
When the control unit is not activated, the first common relay terminal and the first normally closed relay terminal are connected, and the second common relay terminal and the second normally closed relay terminal are connected. And
The control unit connects the first common relay terminal and the first normally open relay terminal when the operation is not performed on the main switch for other seats after activation, and the second A window opening / closing control system for connecting a common relay terminal and the second normally open relay terminal. The control unit connects the first common relay terminal and the first normally open relay terminal when the operation is not performed on the main switch for the other seats from the start to the stop. And when the second common relay terminal and the second normally open relay terminal are connected and an operation of closing the window with respect to the other seat main switch is performed, the first common relay terminal When the first normally closed relay terminal is connected and an operation of opening a window is performed on the other seat main switch, the second common relay terminal and the second normally closed relay terminal are connected. The window opening and closing control system according to claim 1. A unit for other seats provided on the other seat side different from the driver seat of the vehicle, connected to the positive electrode of the power source of the vehicle via a switch circuit that opens and closes an electric circuit,
A momentary-type sub-seat sub-switch having a first contact operated when closing the window on the other seat side and a second contact operated when opening the window on the other seat side,
The first contact is
A first common terminal connected to one end of a motor for other seats that opens and closes the window on the other seat side;
A first normally open terminal connected to the positive electrode of the power source via the first wiring and the switch circuit, and connected to the first common terminal by an operation of closing the window on the other seat side;
A first normally closed terminal;
The second contact is
A second common terminal connected to the other end of the other seat motor;
A second normally open terminal connected to the positive terminal of the power source via the first wiring and the switch circuit, and connected to the second common terminal by an operation of opening the window on the other seat side;
The other seat unit having a second normally closed terminal, and a second wiring and a third wiring, connected to the driver seat side of the vehicle, the driver seat side window, In the window opening and closing control device that controls the opening and closing of the window on the other seat side,
A driver's seat main switch for opening and closing the driver side window;
A third contact operated when closing the window on the other seat side and a fourth contact operated when opening the window on the other seat side, and opening and closing the window on the other seat side Main switch for other seats to
A first relay circuit that has a first relay contact and is driven when the other seat side window is closed;
A second relay circuit that has a second relay contact and is driven when the other seat side window is opened;
The switch circuit is activated as the switch circuit is turned on, and stopped as the switch circuit is turned off, and signals are input from the driver seat main switch and the other seat main switch, A control unit that controls the first relay circuit and the second relay circuit in accordance with an operation of a main switch and the other seat main switch,
The first relay contact is
A first common relay terminal connected to the first normally closed terminal by a second wiring;
A first normally open relay terminal connected to ground;
A first normally closed relay terminal connected to the positive electrode of the power source,
The second relay contact is
A second common relay terminal connected to the second normally closed terminal by a third wiring;
A second normally open relay terminal connected to ground;
A second normally closed relay terminal connected to the positive electrode of the power source,
When the control unit is not activated, the first common relay terminal and the first normally closed relay terminal are connected, and the second common relay terminal and the second normally closed relay terminal are connected. And
The control unit connects the first common relay terminal and the first normally open relay terminal when the operation is not performed on the main switch for other seats after activation, and the second A window opening / closing control device for connecting a common relay terminal and the second normally open relay terminal.

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