The invention discloses a coaxial dual-motor drive axle for a pure electric vehicle, and belongs to the technical field of new energy vehicles. The device is composed of a motor, a sun gear, a planet gear, a planet carrier, a gear ring, an electromagnetic clutch, a differential mechanism, a shell and a half shaft. By controlling the working state of the electromagnetic clutch, four driving modes of two-gear dual-motor coupling driving and two-gear single-motor independent driving can be achieved, the motors are made to be in an efficient working interval, the economical efficiency of the whole vehicle is improved, the endurance mileage is increased, meanwhile, coaxial arrangement is adopted, the structure is compact, the integration degree is high, dual-motor symmetrical arrangement is adopted, and the service life is prolonged. The structure is more reasonable, the problem of motor suspension is solved, the NVH level of a vehicle is improved, compared with single-motor arrangement, double-motor arrangement enables the weight and the size of the motor to be obviously reduced, and arrangement of the whole vehicle is facilitated.

    本发明公开了一种用于纯电动汽车的同轴式双电机驱动桥,属于新能源汽车技术领域。由电机、太阳轮、行星轮、行星架、齿圈、电磁离合器、差速器、壳体和半轴组成。通过控制电磁离合器的工作状态,可实现两个挡位双电机耦合驱动和两个挡位单电机独立驱动四种驱动模式,使电机处于高效的工作区间,改善整车经济性,提高续航里程,同时采用同轴式布置,结构紧凑,集成度高,采用双电机对称布置,结构更加合理,解决了电机悬置问题,提高车辆NVH水平,相比单电机布置,双电机布置使得电机的重量和体积明显减小,有利于整车布置。


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    Title :

    Coaxial dual-motor drive axle for pure electric vehicle


    Additional title:

    一种用于纯电动汽车的同轴式双电机驱动桥


    Contributors:
    WANG XUANYAO (author) / LIN DONG (author)

    Publication date :

    2022-07-29


    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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