The invention relates to a multi-gear electric drive axle for an electric vehicle and the electric vehicle. The multi-gear electric drive axle comprises a motor, a speed control system, a differential mechanism and an electric drive axle output shaft, and the speed control system comprises a motor speed reducing mechanism, a first speed reducing mechanism and a second speed reducing mechanism and can be switched to a first-gear mode, a second-gear mode, a third-gear mode and a neutral gear mode; relative to the electric drive axle output shaft, the gravity centers of the motor and the motor reducing mechanism are located on one side in the radial direction, and the gravity centers of the first reducing mechanism and the second reducing mechanism are located on the other opposite side in the radial direction. The multi-gear electric drive axle further comprises a power takeoff capable of obtaining power from the motor in any gear mode. According to the multi-gear electric drive axle, various power flow transmission modes can be achieved, the optimized balance of the vehicle speed, traction force and efficiency can be obtained, the power transmission path in the three-gear mode is short, the number of transmission components is small, and therefore loss can be effectively reduced, and the transmission efficiency is improved.

    本申请涉及用于电动汽车的多挡位电驱桥和电动汽车。所述多挡位电驱桥包括:电机、变速系统、差速器和电驱桥输出轴,变速系统包括电机减速机构、第一减速机构和第二减速机构,并且构造成能切换到一挡模式、二挡模式、三挡模式和空挡模式;相对于电驱桥输出轴,电机和电机减速机构的重心在径向方向上位于一侧,第一和第二减速机构的重心在径向方向上位于相反的另一侧;多挡位电驱桥还包括在任一挡位模式下均能获得来自电机的动力的取力器。本申请的多挡位电驱桥可以实现多种动力流传递模式,使得可以获得优化的车速、牵引力以及效率的平衡,并且在三挡模式下的动力传递路径较短,传动构件的数量较少,从而可以有效减少损耗,提高传动效率。


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    Title :

    Multi-gear electric drive axle for electric automobile and electric automobile


    Additional title:

    用于电动汽车的多挡位电驱桥和电动汽车


    Contributors:
    HE RONG (author) / DONG XIAODONG (author) / LONG XIAOKANG (author) / WANG RUILIANG (author) / ZHOU XUAN (author) / YANG XU (author) / ZHANG ZIQING (author)

    Publication date :

    2024-03-12


    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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