The invention provides an electric vehicle battery management system, a power-off recovery method and an electric vehicle, and the system comprises a battery management controller which is used for sending a recovery request instruction; the load controller is used for responding to the recovery request instruction, entering a power-off mode and sending out a corresponding load power-off instruction; the motor controller is used for responding to the recovery request instruction, entering a short-circuit protection mode, controlling a motor to consume electric energy generated during power failure and sending a motor power failure instruction; and the coordination controller is used for controlling the load controller and the motor controller to initialize in response to the load power-off instruction and the motor power-off instruction. According to the electric vehicle battery management system, the power-off recovery method and the electric vehicle, damage to the high-voltage relay caused by counter electromotive force can be prevented.

    本发明提供一种电动汽车电池管理系统、断电恢复方法及电动汽车,包括:电池管理控制器,用以发出请求恢复指令;负载控制器,用以响应于所述请求恢复指令,进入断电模式,并发出相应的负载断电指令;电机控制器,用以响应于所述请求恢复指令,进入短路保护模式,控制电机对断电时产生的电能进行消耗,并发出电机断电指令;以及协调控制器,用以响应于所述负载断电指令与所述电机断电指令,控制所述负载控制器与所述电机控制器进行初始化。通过本发明公开的一种电动汽车电池管理系统、断电恢复方法及电动汽车,能够防止反电势对高压继电器造成损伤。


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    Title :

    Electric vehicle battery management system, power-off recovery method and electric vehicle


    Additional title:

    一种电动汽车电池管理系统、断电恢复方法及电动汽车


    Contributors:
    LI QIANG (author)

    Publication date :

    2023-12-15


    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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