The invention discloses an electric vehicle collision protection system, and belongs to the technical field of electric vehicles. The system comprises an air bag controller which is used for responding to detected automobile collision, sending a first collision signal to a vehicle control unit through a hard wire and sending a second collision signal to the vehicle control unit, a battery management system controller and a motor controller through a CAN bus; the vehicle control unit is used for responding to the first collision signal and sending the first collision signal to the battery management system controller and the motor controller through a hard wire; the battery management system controller is used for responding to the first collision signal and controlling the battery to be powered off under the condition that the second collision signal is abnormal; and the motor controller is used for responding to the first collision signal and controlling the motor to enter a voltage reduction mode under the condition that the second collision signal is abnormal. According to the system, the automobile fire risk is reduced, and the personal safety of a driver and passengers is ensured.

    本申请公开了一种电动汽车碰撞保护系统,属于电动汽车技术领域。所述系统包括:气囊控制器,用于响应于检测到汽车碰撞,通过硬线向整车控制器发送第一碰撞信号,并通过CAN总线向所述整车控制器、电池管理系统控制器和电机控制器发送第二碰撞信号;所述整车控制器,用于响应于所述第一碰撞信号,通过硬线向所述电池管理系统控制器和所述电机控制器发送所述第一碰撞信号;所述电池管理系统控制器,用于在所述第二碰撞信号异常的情况下,响应于所述第一碰撞信号,控制电池断电;所述电机控制器,用于在所述第二碰撞信号异常的情况下,响应于所述第一碰撞信号,控制电机进入降压模式。该系统降低了汽车起火风险,确保了驾乘人员的人身安全。


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    Title :

    Collision protection system for electric automobile


    Additional title:

    电动汽车碰撞保护系统


    Contributors:
    DENG JIAGUO (author) / YU JING (author) / XU MAOSHENG (author) / WANG YUEHANG (author) / LUO YONGLU (author) / SUN RUBAO (author)

    Publication date :

    2023-11-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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