Vehicle door control system

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 tothe 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

technical field [0001] The invention relates to vehicle body control and automobile safety technology, in particular to an automobile door lock control system. Background technique [0002] With the development of automobile electronic technology, more and more electronic control units are applied to automobiles. For example, in order to prevent the occupants in the car from not having the awareness of active locking through the central locking system during driving, the body control module (BCM) is usually used to lock the smart doors. When the vehicle speed reaches the set value or meets some other conditions At this time, the body control module (BCM) outputs a control signal to control the action of the car door lock motor to automatically lock the door, so as to prevent the door from being opened while driving and ensure safety. [0003] When the body control module (BCM) realizes the automatic door locking function, if the vehicle has a collision accident, the car can...

AI Technical Summary

Problems solved by technology

[0003] When the body control module (BCM) realizes the automatic door locking function, if the vehicle has a collision accident, the car can usually be unlocked immediately after the collision. The speed of the vehicle will still be very high and reach the condition of the body control module (BCM) speed lock. At this time, the car may be locked again, or during the collision and rollover process, the central control lock is pressed again and the car may be locked again. In this way, when the vehicle collides at a high speed, the occupants cannot escape in time due to the closed doors, and the outside personnel cannot be rescued immediately, which will have serious consequences

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