The invention discloses an active discharge control system and method of an electric vehicle and the electric vehicle. In the case of vehicle collision, when the whole vehicle controller fails and cannot send an active discharge instruction to the motor controller, the motor controller can control the active discharge circuit to actively discharge by receiving the collision CAN bus signal sent bythe airbag controller, so that the reliability of rapid discharge of the energy storage capacitor is improved, and potential safety hazards and traffic accidents are avoided. Besides, effectiveness verification is performed on the collision CAN bus signal through the whole vehicle controller and the motor controller so that abnormal control of the active discharge unit to perform active dischargeby the whole vehicle controller and the motor controller under the condition that the collision CAN bus signal is ineffective can be avoided, potential safety hazards can be avoided and reliability ofactive discharge can be enhanced.

    本发明公开了一种电动汽车的主动放电的控制系统、方法及电动汽车,当汽车发生碰撞,整车控制器故障无法发送主动放电指令至电机控制器时,电机控制器能够通过接收来自于安全气囊控制器发送的碰撞CAN总线信号控制主动放电电路主动放电,提高了储能电容快速放电的可靠性,避免了造成安全隐患和引发交通事故。此外,通过整车控制器和电机控制器对碰撞CAN总线信号进行有效性验证,避免了整车控制器和电机控制器在碰撞CAN总线信号无效的情况下,非正常控制主动放电单元进行主动放电,避免了引起安全隐患,提高了主动放电的可靠性。


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    Title :

    Active discharge control method and system of electric vehicle and electric vehicle


    Additional title:

    电动汽车的主动放电的控制方法、系统及电动汽车


    Contributors:
    WANG XIAOHUI (author) / LIU BO (author) / FAN XIAOSHUO (author)

    Publication date :

    2020-09-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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