The invention relates to a coaxial type two-gear driving system comprising a differential mechanism assembly, a driving motor, a main shaft and an intermediate shaft assembly. The intermediate shaft assembly and the main shaft are arranged in parallel, the differential mechanism assembly and the main shaft are located on the same axis, and the driving motor is connected with the main shaft; the system is arranged in a shell of an integrated structure. By adding the function of switching the large speed ratio and the small speed ratio, the dynamic property of the electric automobile can be improved, the requirement for the rotating speed of the driving motor is lowered, the driving motor always works in an efficient interval, the driving range of the electric automobile is prolonged, and the economy of the whole automobile is improved; meanwhile, the input shaft and the output shaft are located on the same axis, the structure is compact, whole automobile arrangement is facilitated, andthe weight and cost of the driving system are reduced.

    一种同轴式两挡驱动系统,包括:差速器总成、驱动电机、主轴和中间轴总成,其中:中间轴总成和主轴相互平行设置,差速器总成与主轴在同一轴线上,驱动电机与主轴相连;该系统设置于一体式结构的壳体内。本发明通过添加大小两种速比切换功能,能够提高电动汽车的动力性、降低对驱动电机转速的要求,使驱动电机始终工作在高效区间,延长了电动汽车续驶里程,提升整车经济性;同时输入轴与输出轴在同一轴线上,结构紧凑,便于整车布置,降低了驱动系统的重量和成本。


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    Title :

    Coaxial two-gear driving system


    Additional title:

    同轴式两挡驱动系统


    Contributors:
    XU DALU (author) / CHAI XU (author) / XIONG YUJIE (author) / SONG JUN (author) / XU YONGDA (author)

    Publication date :

    2020-10-20


    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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