JPH0717539Y2 - Power window control device for back door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is applied to an automobile equipped with a back door having a power window.

〔Overview〕

According to the present invention, in a control device configured to prohibit the supply of the drive current of the power window even if the operation switch is operated when the back door of the vehicle is incompletely closed, the drive current of the power window is supplied. By providing an acoustic alarm that sounds when the vehicle is in a prohibited state, the person who operates the power window recognizes that the back door is incompletely closed and fully closes the back door. This is to ensure that proper measures can be taken.

[Conventional technology]

The power window control device installed in the back door of a vehicle has a power window drive device that prevents the power window from closing when the back door is not completely closed even if the operation switch is operated. A prohibition circuit that prohibits the supply of the drive current is provided.

[Problems to be solved by the invention]

However, when the power window of the back door is closed with the operation switch after the back door is closed, the window is not driven when the prohibition circuit is operating. At this time, the driver may think that a trouble has occurred in the circuit.

Particularly, in a vehicle in which a back door is provided with a key switch that can open and close the power window by using an engine key from the outside, the operator of the key switch cannot see the indicator light of the driver's seat conventionally equipped. Therefore, it may be mistakenly recognized as a failure.

An object of the present invention is to provide a control device for a power window for a back door which solves this drawback and allows an operator to immediately recognize that the back door is defectively closed.

[Means for solving problems]

The present invention relates to a closed state detection circuit for detecting that a back door of a vehicle is closed, an operation switch for giving an instruction to open and close a power window of the back door by operation, and even if this operation switch is operated. In a controller for a power window for a back door, which is provided with circuit means for prohibiting supply of a drive current to a drive device for a power window when there is no detection output of the detection circuit, the circuit means supplies the drive current. It is characterized in that it is provided with an audible alarm means for making a sound when in a prohibited state.

The operation switch may be a key switch that is provided on the back door and that can be operated from the outside by an engine key.

It is desirable that the sound generating means generate a buzzer sound that is easily heard at a position where the back door is operated from the outside.

[Action]

When the operator-operated switch is operated and the prohibition circuit is in operation, the acoustic alarm means emits a sound, so that it can be recognized that the back door is not closed. Thereby, the operator completely operates the operation switch after closing the back door completely.

When the operation switch is a key switch provided outside the back door, it can be recognized acoustically even if the driver's seat display is not visible.

Further, since the sound is emitted only while the prohibition circuit is operating, that is, while the operation switch is being operated, the operator can easily recognize that his / her operation is wrong.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a layout diagram of an embodiment of the present invention, and FIG. 2 is a control block configuration diagram thereof.

In the figure, the back door BD of the automobile is in the open position as shown by the broken line. A closed state detection circuit for detecting the closed state when the door is in the closed position is provided at both ends of the back door BD. This is the right door switch RR and the left door switch LR. When the left and right closed state detection circuits are not closed at the same time, the drive current is not supplied to the motor M1 that drives the window PW even if the window switch PS1 is operated. That is, the control unit CP is controlled so that the winding R3 or R4 of the relay that changes the relay contact r3 or r4 is not energized.
Controlled by. This control unit CP and each relay is a relay box CR
It is stored in B.

The feature of the present invention is that the power window is
A switch for operating PW is provided on the back door BD, and a key switch PS that can be operated from outside with the engine key
When 2, the relay box CRB has a built-in buzzer BZ,
CP includes a NOR circuit NOR to which the detection outputs of the right door switch RR and the left door switch LR are input, and an AND circuit AND of the output of the NOR circuit NOR and the output of the key switch PS2, The buzzer BZ is configured to be sounded by the output of the AND circuit AND.

More specifically, the control unit CP is composed of a microprocessor and realizes the logic circuit shown in FIG. That is, as in the control flow chart shown in FIG. 4, the control unit CP grounds the circuit of the terminal T12 so that the key switch PS2 closes the window (UP), and thereby the left and right door switches LR and RR. Relay winding R3, provided that
Drive the contact r3. In this case, the engine key is removed and the ignition switch IS is open,
The current of the battery BA goes through the breaker CB and the relay box CR from the terminal T4.
Since it is supplied to B, by conversion of relay contact r3,
Current flows to the motor M1 in the direction from terminals T13 to T5.
1 is driven and the window PW is closed. When either one of the door switches RR or LR is not in the closed state, that is, in the half-door state, the output of the NOR circuit NOR is sent to the AND circuit AND and the buzzer BZ sounds.

[Effect of device]

As described above, according to the present invention, it is immediately recognized that the closed state of the back door is incomplete, so that the driver can correctly recognize that the operation is not the device failure but the operation failure. .

[Brief description of drawings]

FIG. 1 is a layout view of an embodiment of the present invention. FIG. 2 is a control block configuration diagram of the embodiment. FIG. 3 is a control logic diagram of the embodiment. FIG. 4 is a control flow chart of the embodiment. AND: AND circuit, BA: Battery, BD: Backdoor, B
Z: Buzzer, CB: Breaker, CP: Control unit, CRB ...
Relay box, DL ... Half door indicator, IS ... Ignition switch, LR, RR ... Door switch, LS ... Limit switch, M1 ... Motor, NOR ... NOR circuit, PW ...
Power window, R3, R4, R6 ... Relay winding, r3,
r4, r6 ... Relay contacts.

Claims (2)

[Scope of utility model registration request] 1. A closed state detection circuit for detecting that a back door of a vehicle is in a closed state, an operation switch for giving an instruction to open and close a power window of the back door by an operation, and the operation switch is operated. And a controller for prohibiting the supply of a drive current to the drive device for the power window when there is no detection output from the detection circuit, the controller for the power window for the back door comprising: A control device for a power window for a back door, comprising: an acoustic alarm means for making a sound when the supply of an electric current is prohibited. 2. The control device for a power window for a back door according to claim 1, wherein the operation switch is a key switch provided on the back door and operable by an engine key from outside.