JP2000345768A - Power window device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a crew or the like from being thrown out from an opened window by a shock, by delaying a detection signal for a fixed time when a car is sensed by a shock sensor and fully opening and driving the window pane in response to the detection signal. SOLUTION: An acceleration sensor 2 sensing an impact applied to a car body, a collision decision circuit 3 reading the detecting signal and deciding the state of the collision of a car when the magnitude of the impact reaches a fixed value or more and generating an impact decision signal CD, and a delay circuit 4 delaying the impact decision signal CD by a preset time are installed. An impact decision signal CD' output from the delay circuit 4, delaying for a fixed time after collision decision is transmitted to a control unit ECU as the full-opening command of the window pane. Thus, a crew and freight can be prevented from being thrown out from an opened window, by the collision shock.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power window device having an automatic opening / closing function of a window glass of a vehicle.

[0002]

2. Description of the Related Art Conventionally, in the event of a vehicle collision accident, an impact sensor of an airbag device detects a collision state of a vehicle in a case where a door cannot be opened and it becomes difficult for an occupant to escape. When detecting and activating the airbag,
At the same time, a power window device having an automatic opening / closing function of a window glass has been developed so that the window glass is fully opened by interlocking the power window device (Japanese Patent Laid-Open No. 9-12).
No. 5814).

[0003]

The problem to be solved is that if the impact sensor detects the collision state of the vehicle and immediately opens the window glass immediately,
An occupant or luggage not wearing a seat belt may be thrown out of the vehicle from the window by an impact, or foreign matter scattered by a collision may jump into the vehicle from the window.

[0004]

SUMMARY OF THE INVENTION According to the present invention, when a power window apparatus having an automatic opening / closing function forcibly opens a window glass when a collision state of the vehicle is detected by an impact sensor, the window glass is opened. In order to prevent the occupants and luggage from being thrown out of the window that has been thrown by the impact, and to prevent foreign substances scattered by the collision from jumping in, the detection signal when the collision sensor detects the collision state of the vehicle for a predetermined time. The driving motor of the window glass opening / closing mechanism is driven in the opening direction until the window glass is fully opened according to the delayed collision state detection signal.

[0005]

1 shows a power window device according to the present invention.
As shown in FIG. 1, a basic electric system configuration in the window glass opening / closing circuit 1 includes a driving motor M for a window glass opening / closing mechanism, a pulser P for generating a pulse signal in synchronization with the rotation of the motor M, An open-direction drive relay RY1 for turning on and off the battery power BAT with the polarity of the motor M rotating forward and a closing drive relay RY2 for turning on and off the battery power BAT with the polarity of the motor M rotating in the reverse direction. And a control for reading the operation state of the power window operation master switch M / SW provided on the driver's seat side and appropriately controlling the energization and de-energization of the opening direction relay RY1 or the closing direction relay RY2. And a unit ECU.

When the master switch M / SW is depressed one step in the opening or closing direction and is operated to the manual position M, under the control of the control unit ECU, while the manual operation by the depressing is performed, the opening is performed. By switching the control signal OCS in the direction or the control signal CCS in the closing direction from the previous high level to the low level, the relay coil of the opening direction driving relay RY1 or the closing direction driving relay RY2 is energized, and the motor M is turned on. The window glass is opened or closed by forward or reverse drive.

Further, when the master switch M / SW is further pushed in the opening or closing direction for an instant to operate the automatic position A, under the control of the control unit ECU,
Opening direction control signal OCS or closing direction control signal CCS
Is switched from the high level to the low level, thereby energizing the relay coil of the open direction drive relay RY1 or the close direction drive relay RY2 to drive the motor M to rotate forward or reverse.

Then, the pulse signal PS generated from the pulser P with the rotation of the motor M is read, and the window glass is fully opened or fully closed, and the pulse signal PS is outputted.
The control signal OCS in the opening direction or the control signal CCS in the closing direction is held at a low level until the operation stops.

In such a power window device, particularly in the present invention, an acceleration sensor 2 for detecting the magnitude of an impact applied to a vehicle body, a detection signal from the acceleration sensor 2 is read, and the level of the detection signal is read. And a predetermined level, a collision determination circuit 3 which determines that the vehicle is in a collision state when the magnitude of the impact detected at that time is equal to or greater than a predetermined value and generates a collision determination signal CD. And a delay circuit 4 for delaying the collision determination signal CD by a preset time, and delaying the collision determination signal CD 'output from the delay circuit 4 by a predetermined time from the collision determination to fully open the window glass. The command is given to the control unit ECU.

The control unit ECU provides a collision determination signal C
When a full-opening instruction for the window glass by D 'is given, the same control as when the master switch M / SW is pushed in the opening direction to operate the automatic position A is performed.

Here, the collision determination signal CD is used as an airbag operation signal in the operation device 6 of the airbag 5.

According to the power window device of the present invention thus configured, when a vehicle collision accident occurs, the airbag 5 is actuated immediately by the collision determination, and then the predetermined time set by the delay circuit 4 is set. After a lapse of time (for example, about 10 seconds), the window glass is automatically opened until the window glass is fully opened.

Therefore, since the window glass is not fully opened at the time of the collision, an occupant or luggage not wearing a seat belt may be thrown out of the vehicle by the impact of the collision, or may be thrown out of the vehicle by the collision. It is possible to prevent the scattered foreign matter from jumping into the vehicle from the window.

[0014] Further, even if the door cannot be opened due to the collision and the occupant is stunned,
Without breaking the window glass from outside,
The occupants can be quickly rescued and escaped.

In the present invention, it goes without saying that the acceleration sensor 2 and the collision judging circuit 3 may be provided exclusively, irrespective of the airbag device.

It is also possible to provide each function to the control unit ECU without separately providing the collision determination circuit 3 and the delay circuit 4.

[0017]

As described above, according to the present invention, when a window glass is forcibly fully opened by a power window device having an automatic opening / closing function when a collision state of a vehicle is detected by an impact sensor, the collision sensor detects the collision of the vehicle. Since the detection signal when the state is detected is delayed for a predetermined time, and the window glass is fully opened in response to the delayed detection signal of the collision state,
There is an advantage that it is possible to prevent an occupant or luggage from being thrown out of the window whose window glass is opened due to the impact at the time of the collision, or to prevent foreign matter scattered by the collision from jumping into the window.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a power window device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Window glass opening / closing circuit 2 Acceleration sensor 3 Collision judgment circuit 4 Delay circuit 5 Airbag 6 Airbag actuator

Continued on front page F term (reference) 2E052 AA09 BA02 CA06 EB01 GA00 GA10 GB00 GB20 GC01 GC05 GD00 GD02 GD03 GD09 KA12 KA13 LA01 3D054 EE14 EE25 EE34 FF20 3D127 AA01 BB01 CB01 DF35 DF16 FF06 FF11 FF11

Claims (2)

[Claims] 1. A power window device in which a driving motor for a window glass opening / closing mechanism is driven in an opening direction until the window glass is fully opened by an automatic full opening operation of a window glass opening / closing switch. Means for detecting the collision state of the vehicle, and means for delaying the detection signal of the collision state for a predetermined time, and the window glass opening / closing mechanism is operated until the window glass is fully opened in response to the delayed detection signal of the collision state. A power window device wherein a driving motor is driven in an opening direction. 2. The power window device according to claim 1, wherein a detection signal when the collision sensor detects a collision state of the vehicle is an activation signal of an airbag.