CN102052014A

CN102052014A - Vehicle door control system

Info

Publication number: CN102052014A
Application number: CN 200910201783
Authority: CN
Inventors: 周靖; 罗来军; 黄东亚
Original assignee: Lianchuang Automotive Electronics Co Ltd
Current assignee: DIAS Automotive Electronic Systems Co Ltd; Lianchuang Automotive Electronics Co Ltd
Priority date: 2009-11-09
Filing date: 2009-11-09
Publication date: 2011-05-11
Anticipated expiration: 2029-11-09
Also published as: CN102052014B

Abstract

The invention discloses a vehicle door lock control system comprising a vehicle body control module, a collision anti-error-locking module and a safety door lock control circuit. When receiving a vehicle collision signal, the collision anti-error-locking module outputs a door lock control signal to the safety door lock control circuit to control a door lock motor to operate and unlock a vehicle lock, and a door lock motor action disabling signal is sent to the vehicle body control module through a CAN (Controller Area Network) bus so that the vehicle body control module cannot output a locking control signal to the door lock motor. After the collision anti-error-locking module receives the vehicle collision signal, only when the vehicle speed is confirmed to be zero according to a received vehicle speed signal, the collision anti-error-locking module can output the door lock control signal to control the switching off of the safety door lock control circuit and the connection of the door lock motor, a door lock motor action enabling signal is sent to the vehicle body control module through the CAN bus so that the vehicle body control module can output the locking control signal to the door lock motor. The vehicle door lock control system of the invention can ensure that the vehicle door is unlocked when the vehicle collides at a high speed.

Description

The automobile door lock control system

Technical field

The present invention relates to Body Control and automotive safety technology, particularly a kind of automobile door lock control system.

Background technology

Along with the development of automotive electronic technology, increasing ECU is applied on the automobile.For example for preventing that the occupant does not have the consciousness of locking and initiatively locking by central controlled lock when driving, usually utilizing car body control module (BCM) to carry out intelligent car door locks, when the speed of a motor vehicle reaches setting value or satisfies some other condition, the action of car body control module (BCM) output control signal Control of Automobile door-lock motor automatically locks car door, when driving a vehicle, to prevent to open the door, guarantee safety.

After car body control module (BCM) is realized the automatic door locking function, if collision happens accident, automobile usually can release at once after collision, but diversity in view of accident, if continuous high velocity impact takes place in automobile, because effect of inertia, sometimes the speed of a motor vehicle still can be very high, and reach the condition that car body control module (BCM) speed is locked, this moment, automobile just may be locked once more, or in collision overturning process, central controlled lock is pressed once more and automobile may be locked once more, like this after high velocity impact is taking place the vehicle height, because car door closes, the occupant can't in time escape, and the external staff can not succour at once, thereby can produce serious consequence.

Summary of the invention

The technical problem to be solved in the present invention provides a kind of automobile door lock control system, can guarantee that car door is convenient to the occupant and is in time escaped for unblanking when vehicle generation high velocity impact.

For solving the problems of the technologies described above, lock control system on the car door of the present invention comprises car body control module, collides anti-error lock module, the safety door latch control circuit; The anti-error lock module of described collision comprises CAN EBI, collision alarm interface, door lock control signal output interface; Collide anti-error lock module, link to each other with automobile CAN-bus by the CAN EBI, in order to receive GES, door lock motor action signal is forbidden in transmission, receive the automobile signal that bumps by the collision alarm interface, by door lock control signal output interface out gate lock control signal to the safety door latch control circuit, control door lock machine operation, collide anti-error lock module when receiving the automobile signal that bumps, open automobile door lock with regard to out gate lock control signal to the operation of safety door latch control circuit control door-lock motor, and send by the CAN bus and to forbid that door lock motor action signal is to car body control module, car body control module can not be exported lock control signal to door-lock motor, colliding anti-error lock module receives automobile and bumps after the signal, have only the GES that ought receive to confirm that the speed of a motor vehicle is zero, just control circuit cut-out of meeting out gate lock control signal controlling safety door latch and door-lock motor is connected, and open the door-lock motor actuating signal by the transmission of CAN bus and arrive car body control module, car body control module can be exported lock control signal to door-lock motor.

The anti-error lock module of described collision can also comprise ignition switch status signal interface, the anti-error lock module of described collision receives the automobile ignition switch state by ignition switch status signal interface, colliding anti-error lock module receives automobile and bumps after the signal, have only the GES that ought receive to confirm that the speed of a motor vehicle is zero, and after detecting a new ignition operation by ignition switch status signal interface, just control circuit cut-out of meeting out gate lock control signal controlling safety door latch and door-lock motor is connected, and open the door-lock motor actuating signal by the transmission of CAN bus and arrive car body control module, car body control module can be exported lock control signal to door-lock motor.

Automobile door lock control system of the present invention, collide anti-error lock module by judgement to all kinds of conditions such as the speed of a motor vehicle, collision alarm, ignition switch states, out gate lock control signal is controlled the state of safety door latch control circuit, directly operation is controlled to the control door-lock motor, avoided car body control module under emergency case, still to carry out work and the mistake lock that bumps, caused difficulty to occupant's escape according to old process.

Description of drawings

The present invention is described in further detail below in conjunction with the drawings and specific embodiments.

Fig. 1 is automobile door lock control system one an embodiment schematic diagram of the present invention.

The specific embodiment

Automobile door lock control system one embodiment of the present invention comprises car body control module (BCM), collides anti-error lock module, the safety door latch control circuit as shown in Figure 1; The anti-error lock module of described collision comprises the CAN EBI, the collision alarm interface, ignition switch status signal interface, door lock control signal output interface, link to each other with automobile CAN-bus by the CAN EBI, in order to receive GES, door lock motor action signal is forbidden in transmission, receive the automobile signal (sending collision alarm) that bumps by the collision alarm interface by the collection of safety air sac controller output, receive the automobile ignition switch state by ignition switch status signal interface, by door lock control signal output interface out gate lock control signal to the safety door latch control circuit, control door lock machine operation, collide anti-error lock module when receiving the automobile signal that bumps, open automobile door lock with regard to out gate lock control signal to the operation of safety door latch control circuit control door-lock motor, and send by the CAN bus and to forbid that door lock motor action signal is to car body control module (BCM), car body control module (BCM) can not be exported lock control signal to door-lock motor, any latching operation of going up all will be left in the basket this moment, colliding anti-error lock module receives automobile and bumps behind the signal, have only the GES that ought receive to confirm that the speed of a motor vehicle is zero, and no longer receive the automobile signal that bumps, and to detect a new ignition operation by ignition switch status signal interface (be that firing key pushes KL50 from the Off shelves, dial then and get back to the Start shelves) after, just control circuit cut-out of meeting out gate lock control signal controlling safety door latch and door-lock motor is connected, and open the door-lock motor actuating signal by the transmission of CAN bus and arrive car body control module (BCM), car body control module (BCM) can be exported lock control signal, car body control module is normally carried out the operation of door-lock motor to door-lock motor.

Claims

1. an automobile door lock control system is characterized in that, comprises car body control module, collides anti-error lock module, the safety door latch control circuit; The anti-error lock module of described collision comprises CAN EBI, collision alarm interface, door lock control signal output interface; Collide anti-error lock module, link to each other with automobile CAN-bus by the CAN EBI, in order to receive GES, door lock motor action signal is forbidden in transmission, receive the automobile signal that bumps by the collision alarm interface, by door lock control signal output interface out gate lock control signal to the safety door latch control circuit, control door lock machine operation, collide anti-error lock module when receiving the automobile signal that bumps, open automobile door lock with regard to out gate lock control signal to the operation of safety door latch control circuit control door-lock motor, and send by the CAN bus and to forbid that door lock motor action signal is to car body control module, car body control module can not be exported lock control signal to door-lock motor, colliding anti-error lock module receives automobile and bumps after the signal, have only the GES that ought receive to confirm that the speed of a motor vehicle is zero, just control circuit cut-out of meeting out gate lock control signal controlling safety door latch and door-lock motor is connected, and open the door-lock motor actuating signal by the transmission of CAN bus and arrive car body control module, car body control module can be exported lock control signal to door-lock motor.

2. automobile door lock control system according to claim 1 is characterized in that, sends collision alarm by the collection of safety air sac controller output.

3. automobile door lock control system according to claim 1, it is characterized in that, the anti-error lock module of described collision also comprises ignition switch status signal interface, the anti-error lock module of described collision receives the automobile ignition switch state by ignition switch status signal interface, colliding anti-error lock module receives automobile and bumps after the signal, have only the GES that ought receive to confirm that the speed of a motor vehicle is zero, and after detecting a new ignition operation by ignition switch status signal interface, just control circuit cut-out of meeting out gate lock control signal controlling safety door latch and door-lock motor is connected, and open the door-lock motor actuating signal by the transmission of CAN bus and arrive car body control module, car body control module can be exported lock control signal to door-lock motor.

4. automobile door lock control system according to claim 3, it is characterized in that, the anti-error lock module of described collision receives automobile and bumps after the signal, have only the GES that ought receive to confirm that the speed of a motor vehicle is zero, and no longer receive the automobile signal that bumps, and after detecting a new ignition operation by ignition switch status signal interface, just control circuit cut-out of meeting out gate lock control signal controlling safety door latch and door-lock motor is connected, and open the door-lock motor actuating signal by the transmission of CAN bus and arrive car body control module, car body control module can be exported lock control signal to door-lock motor.