JPH0658047A - Power window drive control device - Google Patents

Abstract

PURPOSE:To perform opening and closing of a window glass without continuing of inclusion of a foreign matter and without going against the will of a driver/ passenger even though the foreign matter exists on the way of a window glass moving upward. CONSTITUTION:In the case a changeover switch 98 is turned into the first contact 98A, a window glass is sunk if any foreign matter is pinched against the will of the driver/passenger even though he is continuing the operation of a manual switch 50. If the changeover switch 98 is turned into the second contact 98B, signal at Hi level is emitted at all times from the output terminal 97C of an OR circuit 97 while the manual switch 50 is being operated, and the latch circuit 92 can be maintained in the reset condition. Even though a Hi signal is emitted from the output terminal 84A of an AND circuit 84, no Hi signal will be emitted from the output terminal 92B of the latch circuit 92, and a motor 12 goes without inversion. Accordingly the window glass continues moving in the direction of closing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power window drive control device, and more particularly to a power window drive control device for vertically moving a window glass of a vehicle by a driving force of a motor.

[0002]

2. Description of the Related Art Generally, on a driver's seat side of a vehicle, a manual switch and an automatic switch are provided as a power window switch for vertically moving a window glass of the vehicle.

In the auto switch, when the up-side contact or the down-side contact is turned on, the motor continues to be driven even if the hand is released, and the window glass is moved until it is fully closed or fully opened. For example, when moving the window glass from the fully open state to the fully closed state, when the window glass is in the fully closed state, such movement is blocked by the window frame or the like, and the drive current of the motor fluctuates. The amount of change in the drive current of the motor is detected, and when it exceeds a predetermined value, it is determined that the movement of the window glass has stopped, and the motor is stopped.

On the other hand, the manual switch is for manually operating the vertical movement of the window glass. When the occupant presses the switch in a desired direction, the window glass moves in a direction corresponding to the pressing, and the window glass is moved. When the desired position is reached, the pressure is released. Therefore, the window glass can be stopped at a predetermined position.

Here, it has been proposed to detect an abnormal current when a foreign object is caught when the auto switch is turned on when trying to fully close the window glass and stop or reverse the driving of the motor. There is.

[0006]

However, regardless of whether the switch is a manual switch or an auto switch, it is premised that the occupant operates the window glass up / down instruction. Therefore, the occupant operates one of the above switches. In the case of continuing the above, there is a problem that even if a foreign matter or the like is present during the ascending of the window glass, the window glass continues to rise and the foreign matter continues to be sandwiched. On the contrary, it is against the intention of the occupant that the window glass is uniquely lowered (opened) despite the fact that the manual switch instructs to close the window glass when a foreign object is caught.

In view of the above facts, the present invention does not continue to pinch foreign matter even if there is a foreign matter in the ascending direction of the window glass, and to open and close the window glass without violating the intention of the occupant. It is an object of the present invention to obtain a power window drive controller capable of

[0008]

The invention according to claim 1 is
A power window drive control device for opening and closing a window glass of a vehicle by a driving force of a motor, a manual switch for instructing closing of the window glass only while an occupant is operating, and a full operation of the window glass by a slight operation of the occupant. An auto switch for instructing closing, a measuring means for measuring an elapsed time after the window switch is instructed to be closed by the manual switch or the auto switch, a sensor for detecting full closing of the window glass, and the window glass closing Current detecting means for detecting that the current flowing through the motor exceeds a predetermined value, and the current detecting means detects that the current flowing through the motor exceeds a predetermined value, and the sensor detects the window glass. The first state in which full closing is not detected, and the elapsed time exceeds a predetermined time due to an instruction to close the window glass In at least one of the two states, drive control means for stopping or reversing the motor for a predetermined time and then stopping, and the manual switch or the auto switch after stopping the motor by the drive control means While the instruction to close the window glass is continued by the switch, a prohibition means for prohibiting the driving of the motor so that the window glass does not move closed, and the prohibition when the window glass is closed by operating the manual switch. And a changeover switch for deactivating the means.

[0009]

According to the present invention, the auto switch and the manual switch are provided for instructing the closing of the window glass, and the sensor detects the full closing of the window glass. The measuring means measures an elapsed time after the window is instructed to close the window glass.

The current detecting means detects that the current flowing through the motor when the window glass is raised exceeds a predetermined value. The drive control means is in a first state in which the current detection means detects that the current flowing through the motor exceeds a predetermined value and the sensor does not detect that the window glass is fully closed. In the case of at least one of the second states in which the time has exceeded the predetermined time, the motor is stopped or reversed for a predetermined time and then stopped.

After the drive control means stops the motor, the prohibiting means prohibits the driving of the motor so that the window glass does not move closed while the window closing instruction is continued by the switch. Therefore, even if there is a foreign object while the window glass is rising when a closing instruction such as continuous pressing of the manual switch and auto switch is given, this state is detected and the motor is stopped or reversed for a predetermined time. It is possible to prevent a foreign substance from being caught by stopping after stopping.

Here, particularly in the manual switch, when the prohibiting means operates, the operation (stopping or reversing) different from the operation of the occupant (operation for closing the window glass) is performed. Such an operation is against the intention of the occupant, and may cause a problem on the contrary. Therefore, in the present invention, a changeover switch is provided, and by operating this changeover switch, it is possible to deactivate the prohibiting means when the window glass is closed by operating the manual switch. With this, without violating the intention of the occupant,
The operation according to the operation of the occupant (for example, the closing is continued when the window glass closing instruction is issued) can be performed.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration of a power window drive control device 10 according to this embodiment.

Both ends of the motor 12 for driving the power window are connected to common terminals 14A and 16A of the first and second relay circuits 14 and 16, respectively. The first relay circuit 14 is for raising the window glass, and the first contact 14B is grounded via a small resistance (about 10 mΩ). The second contact 14C is connected to the power supply line 20. The first relay circuit 14 includes a first coil 22, and when the first coil 22 is not excited, the first contact 1
4B, and when the first coil 22 is excited, it switches to the second contact 14C. The power supply line 20 is connected to a terminal IG connected to a battery BT mounted on a vehicle via an ignition switch (not shown), and is supplied with electric power when the ignition switch (not shown) is turned on.

On the other hand, the second relay circuit 16 is for descending the window glass, and the first contact 16B is grounded via the minute resistor 18. This second relay circuit 16 has a second
When the second coil 24 is not excited, it is switched to the first contact 16B, and when the second coil 24 is excited, it is switched to the second contact 16C. It has become.

One end of each of the first and second coils 22 and 24 is connected to the power supply line 20, and the other end is connected to the collectors of the NPN type first and second transistors 26 and 28. . These first and second transistors 2
The emitters of 6, 28 are grounded and connected to their respective collectors via Zener diodes 44, 46. Therefore, when the transistor 26 is turned on, the first coil 22 is excited, the first relay circuit 14 is switched to the second contact 14C, and the motor 12 can be normally rotated to raise the window glass. Further, when the transistor 28 is turned on, the second coil 24 is excited, the second relay circuit 16 is switched to the second contact 16C, and the motor 12 can be rotated in the reverse direction to lower the window glass.

The common terminal 14A of the first relay circuit 14 is connected to the power supply line 42 via the resistor 30 and the diode 34, and the common terminal 1 of the second relay circuit 16 is connected.
6A is a power supply line 42 via a resistor 32 and a diode 36.
It is connected to the. This power line 42 has a capacitor 4
One end of 0 is connected and the other end is grounded. In addition, the cathode of the Zener diode 38 is connected to the power supply line 42, and the anode is grounded. Therefore, when the manual switch 50 is pressed, power is supplied to the power line through the resistor 30 and the diode 32, and the power line 42
A power source B serving as a constant voltage power source is formed by the Zener diode 38 and the capacitor 40.

The power line 20 has a manual switch 50 for raising the window glass and a manual switch 5 for lowering the window glass.
One end of each of the two is connected. The other end of the manual switch 50 is connected to the first input end 60 of the OR circuit 60 via the resistor 54.
It is connected to A. The other end of the manual switch 52 for lowering the window glass is connected to the first of the OR circuit 62 via the resistor 56.
It is connected to the input end 62A.

The OR circuits 60 and 62 are components of the logic circuit section 100 for turning on and off each of the transistors 26 and 28 for operating the first and second relay circuits 14 and 16. The output terminal 76C of the AND circuit 76 is connected to the second input terminal 62B of the OR circuit 60. The first input terminal 76A of the AND circuit 76 has a resistor 30
And the diode 34, and the second input terminal 76B of the AND circuit 76 is connected to the auto switch 48 described later.
Is connected to the output terminal 70B of the first timer circuit 70 which is turned on and becomes high level. Further, the output end 60C of the OR circuit 60 is connected to the second input end 82B of the AND circuit 82 whose output end 82C is connected to the base of the transistor 26, and the first input end 82A of the AND circuit 82 has A
The output terminal 80C of the ND circuit 80 is connected via an inverter 81. The first input terminal of the AND circuit 80 is
It is connected between the resistor 32 and the diode 36.
A second input terminal 80B of the ND circuit 80 is connected to an output terminal 92B of a latch circuit 92 described later. Therefore, AND
The transistor 26 is turned on / off according to the inverted signal of the signal obtained by the logical product of the circuit 80 and the signal of the logical product of the logical sum signals of the OR circuit 60.

On the other hand, the OR circuit 62 includes the first, second and third OR circuits.
Input terminals 62A, 62B, and 62C, and the second input terminal 62B is connected to the output terminal 78C of the AND circuit 78. The first input terminal 78A of the AND circuit 78
Is connected to the output terminal 70B of the first timer circuit 70, and the second input terminal 78B is connected between the resistor 32 and the diode 36. Further, the output terminal 62 of the OR circuit 62
D is connected to the base of the transistor 28. Therefore, the transistor 28 is turned on / off according to the signal obtained by the logical sum of the input signals of the OR circuit 62.

A manual switch 50 for raising the window glass,
The mechanical switch 52 for descending the window glass is attached with a mechanically interlocked auto switch 48 which is turned on when the operation amount of pressing the manual switch 50, 52 is large. For example, when the operation amount of the window glass raising manual switch 50 is small, the manual switch 50 is turned on and the auto switch 48 is turned off, and when the operation amount is large, both of them are turned on. The movable terminal 48A of the auto switch 48 is connected to the power supply line 20, and the common terminal 48B is connected to the first timer circuit 70 via the resistor 58.
Is connected to the input terminal 70A. The first timer circuit 70 outputs a high level signal from the time when the auto switch 48 is turned on (rising edge of the input signal), and goes low after a predetermined time t1 has elapsed since the auto switch 48 was turned off. The signal of is output. The predetermined time t1 is set in advance to a time (about 10 seconds in this embodiment) sufficient to fully open the window glass or fully open the window glass.

The first timer circuit 70 has a reset terminal 7
0C, and the reset terminal 70C is connected to the output terminal 66C of the OR circuit 66. The first input terminal 66A of the OR circuit 66 has a first input terminal 64A connected between the resistor 30 and the diode 34 and the resistor 32 and the diode 3.
It is connected to the output terminal 64C of the AND circuit 64 having the second input terminal 62B connected between the six terminals. The second input terminal 66B of the OR circuit 66 has a first motor lock detection circuit 88.
Is connected to the output terminal 88B of.

The first motor lock detection circuit 88 is
The detection circuit is composed of a comparison circuit, a current-voltage conversion circuit, etc. for detecting that the window glass is fully closed. An input end 88A of the first motor lock detection circuit 88 is connected to one end 18A of the minute resistor 18 (anti-ground side in FIG. 1), and an input current is a predetermined current I1 (in this embodiment, a predetermined current I1). , 15 ± 1 A), a high level signal is output. Further, one end 18A of the minute resistor 18 is also commonly connected to the input end 90A of the second motor lock detection circuit 90.

The second motor lock detection circuit 90 is a detection circuit composed of a comparison circuit, a current-voltage conversion circuit, etc. for detecting that a foreign object is caught when the window glass rises. The current is a predetermined current I
When it is 2 (7 ± 1 A in this embodiment), a high level signal is output. The output end 90B of the second motor lock detection circuit 90 is connected to the second input end 68B of the OR circuit 68. The output terminal 68C of the OR circuit 68 is A
It is connected to the second input end 86B of the ND circuit 86, and the first input end 68A is connected between the resistor 30 and the diode 34 via the third timer circuit 74. The third timer circuit 74 is a falling one-shot signal generating circuit for monitoring the rising duration time of the window glass, and starts rising the window glass for a predetermined time t3 (about 10 in this embodiment).
Seconds), a high level pulse signal (for example,
The pulse width is about 10 msec).

The first input terminal 86A of the AND circuit 86 is O
It is connected to the output end 60C of the R circuit 60, and the third input end 86C is connected to the terminal 96A of the fully closed sensor 96 arranged near the upper end of the window frame of the vehicle. This terminal 96A
Is connected to the power source B through the resistor 94, and the terminal 96B is grounded. The fully closed sensor switch 96 is turned on when the window glass is in the fully closed state and the terminals 96A and 96B are connected to each other. The third input terminal 86C of the AND circuit 86 is connected when the window glass is fully closed. It is grounded via the fully closed sensor 96 to be at a low level, and is at a high level via the resistor 94 when the window glass is in a state other than fully closed.

The output terminal 86D of the AND circuit 86 is connected to the input terminals 92A of the latch circuit 92 and the third timer circuit 72,
72A is commonly connected. The latch circuit 92 is composed of a flip-flop circuit or the like, and holds the output signal at a high level when the input signal rises. Further, the timer circuit 72 outputs a high level signal in synchronization with the rising edge of the input signal and delays the falling edge of the input signal by a predetermined time t2 (for example, 0.2 seconds) to reset the latch circuit 92. It is configured to output a low level signal for Output terminal 72B of timer circuit 72
Is branched into two branches, one is connected to the second input terminal 84B of the AND circuit 84 via the inverter 85, and the other is connected to the second input terminal 97B of the OR circuit 97 via the inverter 95.

The first input terminal 84A of the AND circuit 84 is connected to the first input terminal 60A of the OR circuit 60 via the inverter 83.
It is connected to the. The first input terminal 6 of the OR circuit 60
0A is also connected to the first input terminal 97A of the OR circuit 97. OR with the output terminal 84C of the AND circuit 84
The output terminal 97C of the circuit 97 is connected to the first terminal 98A and the second terminal 98B of the changeover switch 98 having a one-circuit two-contact configuration. Common terminal 9 of this changeover switch 98
8C is connected to the reset terminal 92C of the latch circuit 92. Therefore, the changeover switch 98 has the first contact 98A.
When the output signal of the AND circuit 84 becomes high level, the latch circuit 92 is reset and the output signal of the latch circuit 92 becomes low level.
Further, when the changeover switch 98 is switched to the second contact 98B side, when the output signal of the OR circuit 97 becomes high level, the latch circuit 92 is reset and the output signal of the latch circuit 92 becomes low level.

The operation of this embodiment will be described below with reference to the time charts of FIGS. 2 and 3 together with the operation of the logic circuit 100.

First, the changeover switch 98 has the first contact 98.
The operation of reversing the drive of the motor 12 when a foreign object is caught by the switch to the A side, that is, the switch operation of either the auto switch 48 or the manual switch 50 will be described.

First, when raising the window glass from the stopped state, the passenger presses (turns on) the manual switch 50 for raising the window glass. Therefore, as shown in FIG.
A high-level signal is supplied to the first input terminal 60A of the OR circuit 60 via the resistor 54, and the second input of the AND circuit 82 is supplied.
A high level signal is input to the input end 82B.

When the manual switch 50 is pressed, the relay circuits 22 and 24 are both non-excited, so that both ends of the motor 12 are grounded via the minute resistor 18. Therefore, since the resistance 32 and the diode 36 are at a low level, the output signal of the AND circuit 80 is at a low level.
The low-level signal output from the AND circuit 80 is inverted by the inverter 81, and the AND circuit 82
A high level signal is input to the first input end 82A of the. Therefore, the output signal of the AND circuit 82 becomes a high level, the transistor 26 is turned on by this high level signal, and the transistor 22 is turned on, so that the coil 22 of the relay circuit 14 is excited and cut to the second contact 14C. In turn, the motor 12 rotates in the normal direction and the window glass rises.

When the operation amount of the manual switch 50 is large and the auto switch 48 is turned on, a high level signal from the power source B is input to the input end 70A of the first timer circuit 70 via the resistor 58. It The first timer circuit 70 outputs a high level signal to the AND circuits 76 and 78 for a predetermined time t1 from the rising of this input signal. When the window glass rises, the level between the resistor 30 and the diode 34 becomes high level, and the AND circuit 76 outputs a high level signal. Therefore, the transistor 26 is continuously turned on until the output signal from the first timer circuit 70 becomes low level, the motor 12 is normally rotated by the excitation of the coil 22, and the window glass continues to rise.

When the manual switch 52 for lowering the window glass is turned on while the window glass is being raised by turning on the auto switch 48, the resistor 30 and the diode 34 are turned on.
And between the resistor 32 and the diode 36 become high level, and the AND circuit 64 outputs a high level signal to the first timer circuit 70 via the OR circuit 66. As a result, the first timer circuit 70 is reset and outputs a low level signal. Therefore, the AND circuits 76 and 8
The output signal of 2 becomes low level, and the transistor 26,
By turning off 28, the coils 22, 24
Is de-excited and the motor 12 stops rotating.

While the motor 12 is rotating, the motor lock detection circuits 88 and 90 detect the current flowing through the motor 12. When the raised window glass is fully closed,
The motor 12 is overloaded and overcurrent I1 (for example, 1
5A), the first motor lock detection circuit 88 outputs a high level signal to the first timer 70 via the OR circuit 66. Therefore, the first timer circuit 70 is reset, the output signals of the AND circuits 76 and 82 become low level in the same manner as described above, the coil 22 is de-excited, and the rotation of the motor 12 is stopped.

If the window glass continues to rise while obstacles such as foreign substances are present while the window glass is fully closed, the window glass is prevented from rising before it is fully closed, and the foreign matter may be caught. Become. Due to the entrapment of the foreign matter, the motor 12 is overloaded and the abnormal current I2 (for example, 7
A) occurs (FIG. 2 (2)). The second motor lock detection circuit 90 outputs a high level signal to the AND circuit 86 via the OR circuit 68 (FIG. 2 (3)). At this time, since the fully closed sensor 96 is off and the window glass is rising, the output signal of the OR circuit 60 is at a high level.
A high level signal is input to each of the input terminals 86A, 86B, 86C of the ND circuit 86. Therefore, the AND circuit 86
Outputs a high level signal to the latch circuit 92 and the second timer circuit 72, and the latch circuit 92 outputs a high level signal to the AND circuit 80 and the OR circuit 62 at the rising edge of this signal.

The AND circuit 80 outputs a high level signal when the high level signal generated by the normal rotation of the motor 12 and the high level signal output from the latch circuit 92 are input. Therefore, a low-level signal is input to the AND circuit 82 via the inverter 81, and AN
The D circuit 82 outputs a low level signal and the transistor 26 is turned off. As a result, the coil 22 is de-excited, the relay circuit 14 is switched to the first contact 14B, and the motor 12 is stopped.

On the other hand, the OR circuit 62 outputs a high level signal to turn on the transistor 28 and excite the coil 24. By exciting the coil 24, the relay circuit 16 is switched to the second contact 16C, and the motor 1
Power is supplied to the second terminal 12B. Therefore, the motor 1
2 reverses and the window glass starts descending.

By the reverse rotation of the motor 12,
The overloaded state of the motor 12 is eliminated, and the motor lock detection circuit 90 outputs a low level signal. At this time,
Since the OR circuit 60 outputs a low level signal as described above, the input signal of the AND circuit 86 becomes low level, and the output signal of the AND circuit 86 falls to low level. From the falling edge of the output signal of the AND circuit 86, as shown in FIG.
Outputs a signal which is delayed by a predetermined time t2 and becomes low level. Therefore, the second input terminal 84B of the AND circuit 84
A high-level signal is input to the inverter via the inverter 85. At this time, if the upward manual switch 50 is continuously pressed, the AND circuit 8 is passed through the inverter 83.
Since the signal input to the first input terminal 84A of No. 4 is low level ((5) in FIG. 2), the AND circuit 84 outputs a low level signal and the latch circuit 92 is not reset. Therefore, the signal output from the latch circuit 92 continues to be at high level, and the motor 12 continues to rotate in reverse. On the other hand, when the raising manual switch 50 is turned off, each of the signals input to the AND circuit 84 becomes high level, the latch circuit 92 is reset ((6) in FIG. 2), and the signal output from the latch circuit 92 is output. Goes low. As a result, the signal output from the OR circuit 62 becomes low level, the transistor 28 is turned off, and the coil 24 is de-energized. Therefore, the relay circuit 16 is switched to the first contact 16B, both ends of the motor 12 are grounded, the rotation of the motor 12 is stopped, and the elevation of the window glass is stopped.

When the foreign matter is caught, for example, when the occupant recognizes it and turns off the raising manual switch 50, a high level signal is input to the AND circuit 62 through the inverter 83. , Second timer circuit 72
Since the signal output from the latch circuit 92 is a signal that is delayed by the predetermined time t2 and becomes the low level, the output signal from the latch circuit 92 is the predetermined time t2 even when the manual switch 50 is turned off.
Outputs a high level signal only, and the motor 12 rotates in the reverse direction. Therefore, the window glass descends for a predetermined time and stops.

As described above, even if there is a foreign substance while the window glass is rising and the foreign substance is sandwiched, the motor is rotated in the reverse direction, and the foreign substance and the damage to the window glass are avoided.

When the raising manual switch 50 is turned on, the third timer circuit 74 outputs a pulse signal after a predetermined time t3 (about 10 seconds), as shown in FIG. 3 (2). Output. Therefore, when the window switch is not fully closed after the elevating manual switch 50 is turned on for about 10 seconds, all the input signals of the AND circuit 86 become high level, and the AND circuit 86 outputs a high level signal. The latch circuit 54 outputs a high level signal. Therefore, similarly to the above, the transistor 28 is turned on, the coil 24 is excited, the motor 12 is rotated in the reverse direction, and the descent of the window glass is started.

At this time, when the manual switch 50 is off, the signal input to the AND circuit 84 via the inverter 83 is at the high level, and the output signal of the second timer circuit 72 is the third signal. Since the falling edge of the pulse signal output from the timer circuit 74 is delayed by a predetermined time t2 and becomes low level ((3) in FIG. 3), the latch circuit 92 is reset at the falling edge of the output signal of the second timer circuit 72. To be done. By resetting the latch circuit 54, the transistor 64 is turned off, the reversal down relay 14 is de-energized, the motor 12 is stopped, and the window glass is stopped moving up and down.

On the other hand, when the manual switch 50 is continuously pressed and is in the ON state, the AN is set via the inverter 83.
Since the signal input to the D circuit 84 maintains a low level, the latch circuit 92 is not reset and continues to output a high level signal. Therefore, the transistor 28 is kept on, the motor 12 continues to rotate in the reverse direction, and the window glass continues to descend.

Therefore, when the rise of the window glass is not completed within a predetermined time (about 10 seconds), such as when there is a soft foreign substance during the rise of the window glass or when the foreign matter is urged to the window glass. However, the motor is rotated in the reverse direction, and foreign matter and damage to the window glass are avoided. Further, when the overload current of the motor 12 cannot be detected, the motor lock detection circuit 88,
Even when 90 is damaged, the rising time of the window glass can be monitored to detect a foreign object while the window glass is rising, and the reverse rotation of the motor can prevent the foreign object and the window glass from being damaged.

Thus, when the changeover switch 98 is switched to the side of the first contact 98A, the occupant manually operates the switch 50.
Even if the operation (instruction to close the window glass) is continued, if the foreign matter is caught, the window glass is lowered. On the contrary, this means that the window glass operates against the intention of the occupant, and in some cases, the operation against this intention may cause a malfunction.

Therefore, in this embodiment, the changeover switch 98
By providing this switch and switching the changeover switch 98 to the side of the second contact 98B, the window glass can be operated according to the intention of the occupant during the manual operation.

That is, the changeover switch 98 has the second contact 9
If it is switched to the 8B side, a high level signal is always output from the output terminal 97C of the OR circuit 97 while the manual switch 50 is operated, and the latch circuit 92 can be maintained in the reset state. . Therefore, AND
Even if a high level signal is output from the output terminal 84A of the circuit 84, the high level signal is not output from the output terminal 92B of the latch circuit 92, and the motor 12 is not inverted. Therefore, the window glass continues to operate in the closing direction.

As described above, in the present embodiment, the closing operation of the window glass during the operation with the manual switch is made in line with the occupant's intention by the changeover operation of the changeover switch 98. It is possible to select whether to reverse the motor (lower the window glass) when sandwiching.

In the above embodiment, the case where the window glass is moved up and down has been described, but the present invention is not limited to this, and the case where the sunroof or the like arranged on the upper part of the vehicle is moved horizontally. In addition, it can be easily applied even when the window glass moves in an oblique direction or a lateral direction.

[0051]

As described above, according to the present invention, even if a foreign substance is present in the rising direction of the window glass, the foreign substance does not continue to be caught and the window glass can be opened and closed without violating the intention of the occupant. It has an excellent effect that the operation can be performed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a power window drive control device according to the present embodiment.

FIG. 2 is a time chart when an overcurrent flows through the motor while the window glass of the power window drive control device is rising.

FIG. 3 is a time chart when the window glass rises while continuing the predetermined time of the power window drive control device.

[Explanation of symbols]

 10 Power Window Drive Control Device 12 Motor 14 First Relay Circuit 16 Second Relay Circuit 48 Auto Switch 50 Manual Switch (for Raising) 52 Manual Switch (for Lowering) 88 First Motor Lock Detection Circuit 90 Second Motor Lock detection circuit 92 Latch circuit 98 Changeover switch

Claims (1)

[Claims] 1. A power window drive control device for opening and closing a window glass of a vehicle by a driving force of a motor, the manual switch for instructing closing of the window glass only while an occupant is operating, and a slight operation of the occupant. An auto switch for instructing full closing of the window glass, a measuring unit for measuring an elapsed time from the instruction of closing the window glass by the manual switch or the auto switch, and a sensor for detecting full closing of the window glass. Current detecting means for detecting that the current flowing through the motor exceeds a predetermined value when the window glass is closed; and the current detecting means detects that the current flowing through the motor exceeds a predetermined value, and the sensor By the first state in which full closing of the window glass is not detected, and closing of the window glass is instructed In the case of at least one of the second states exceeding the predetermined time, drive control means for stopping or reversing the motor for a predetermined time and then stopping, and after stopping the motor by the drive control means While the instruction to close the window glass is continued by the manual switch or the automatic switch, a prohibition unit that prohibits the driving of the motor so that the window glass does not move closed, and a window obtained by operating the manual switch. A power window drive control device comprising: a changeover switch that does not activate the prohibiting means when the glass is closed.