The invention provides a power supply system of a driving motor of an electric automobile and the electric automobile. The power supply system comprises a first power supply; the first power supply circuit is electrically connected with the first power supply and is used for supplying power to a system basic chip SBC and an upper bridge and a lower bridge of a driving motor; a second power supply; the second power supply circuit is electrically connected with the second power supply and is used for supplying power to a lower bridge of the driving motor; the power supply voltage of the second power supply is higher than that of the first power supply; when the first power supply circuit breaks down, power is supplied to a lower bridge of the driving motor through the second power supply circuit, so that the driving motor enters a short-circuit state; and when the second power supply circuit breaks down, the first power supply circuit supplies power to the upper bridge of the driving motor, so that the driving motor enters a short-circuit state. According to the scheme, the active safety performance of the electric vehicle is improved.

    本发明提供一种电动汽车的驱动电机的电源系统及电动汽车,电源系统包括:第一供电电源;与所述第一供电电源电连接的第一供电电路,用于为系统基础芯片SBC供电以及为驱动电机的上桥和下桥供电;第二供电电源;与所述第二供电电源电连接的第二供电电路,用于对所述驱动电机的下桥供电;所述第二供电电源的供电电压高于第一供电电源的供电电压;当所述第一供电电路发生故障时,通过所述第二供电电路为所述驱动电机的下桥供电,使所述驱动电机进入短路状态;当所述第二供电电路发生故障时,通过所述第一供电电路为所述驱动电机的上桥供电,使所述驱动电机进入短路状态。本发明的方案提高了电动汽车的主动安全性能。


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    Title :

    Power supply system of driving motor of electric automobile and electric automobile


    Additional title:

    一种电动汽车的驱动电机的电源系统及电动汽车


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

    Publication date :

    2023-04-18


    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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