The invention discloses an electric automobile driving system which comprises a motor assembly and an electric drive axle assembly, and the motor assembly and the electric drive axle assembly are integrated into a whole. The motor assembly comprises a driving motor, a controller is arranged on the outer wall of a motor shell of the driving motor, the controller and the motor shell are fixedly integrated into a whole, a three-phase line of the driving motor is integrated in the controller, and two direct-current buses of the three-phase line extend out of the controller; a motor shaft of the driving motor is connected with an inner spline shaft; the electric drive axle assembly comprises an axle housing, brakes and a main speed reducer assembly composed of an outer spline shaft, a main speed reducer and a differential mechanism, the main speed reducer assembly is fixedly connected with the axle housing, the outer spline shaft is connected with the inner spline shaft, and the brakes are arranged at the two ends of the axle housing. Through the integrated design of the motor assembly and the electric drive axle assembly, connecting parts between the motor assembly and the electric drive axle assembly are effectively reduced, the complexity of the driving system is reduced, and the assembly manufacturability is improved.

    本发明公开了一种电动汽车驱动系统,包括电机总成和电驱桥总成,所述电机总成与电驱桥总成集成于一体;所述电机总成包括驱动电机,所述驱动电机的电机壳外壁上设有控制器,控制器与电机壳固定集成于一体,控制器的内部集成有驱动电机的三相线,三相线的两根直流母线伸出控制器外;驱动电机的电机轴上连接有内花键轴;所述电驱桥总成包括桥壳、制动器和由外花键轴、主减速器以及差速器组成的主减速器总成,所述主减速器总成与桥壳固定连接,外花键轴与内花键轴相连,制动器设于桥壳的两端。通过电机总成和电驱桥总成的集成化设计,有效减少二者之间的连接部件,降低驱动系统的复杂程度,提高装配工艺性。


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    Title :

    Electric automobile driving system


    Additional title:

    一种电动汽车驱动系统


    Contributors:
    TENG WEI (author)

    Publication date :

    2022-05-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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