The invention provides an electric automobile and a control circuit of a driving motor thereof, and the control circuit of the driving motor comprises a first detection circuit which is electrically connected with a low-voltage power supply of the electric automobile and is used for outputting a first control signal when detecting that the low-voltage power supply fails; the second detection circuit is electrically connected with the first detection circuit, the first detection circuit supplies power to the second detection circuit, and the second detection circuit is used for outputting a second control signal when the low-voltage power supply supplies power normally and the torque control logic of the motor controller of the electric automobile breaks down; and the control circuit is electrically connected with the first detection circuit and the second detection circuit respectively and is used for controlling the short circuit of a driving motor of the electric automobile according to the first control signal or the second control signal. According to the scheme, the passive safety performance of the automobile is improved.

    本发明提供一种电动汽车及其驱动电机的控制电路,驱动电机的控制电路包括:与电动汽车的低压供电电源电连接的第一检测电路,用于检测到所述低压供电电源故障时,输出第一控制信号;与所述第一检测电路电连接的第二检测电路,所述第二检测电路由所述第一检测电路供电,用于在所述低压供电电源正常供电,且所述电动汽车的电机控制器的扭矩控制逻辑出现故障时,输出第二控制信号;与所述第一检测电路和所述第二检测电路分别电连接的控制电路,用于根据所述第一控制信号或者第二控制信号控制所述电动汽车的驱动电机短路。本发明的方案提高了汽车的被动安全性能。


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    Title :

    Electric automobile and control circuit of driving motor thereof


    Additional title:

    一种电动汽车及其驱动电机的控制电路


    Contributors:
    LI DANGQING (author) / LIU RUI (author) / ZHAO LEI (author)

    Publication date :

    2023-05-05


    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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