The invention provides a double-motor planetary gear train stepless speed change electric drive system of an electric vehicle. The double-motor planetary gear train stepless speed change electric drive system comprises a first-stage gear speed reduction mechanism and a second-stage gear speed reduction mechanism. The primary gear speed reducing mechanism comprises a planetary gear train speed reducing mechanism connected with the main driving motor (1) and an external meshing gear speed reducing mechanism connected with the auxiliary driving motor (11); a gear ring of the planetary gear trainspeed reducing mechanism is connected with an external meshing driven gear of the external meshing gear speed reducing mechanism to form an integrated structure (5); a planet carrier (7) of the planetary gear train speed reducing mechanism is connected with a secondary gear speed reducing mechanism, and the secondary gear speed reducing mechanism is connected with a differential mechanism (10). Therefore, optimal matching of the rotating speed, the torque and the high-efficiency area of the driving motor is achieved, the requirements for vehicle acceleration and the highest vehicle speed can be met, high efficiency of an electric driving system is achieved, the endurance mileage is increased to the maximum extent, the power changing process is continuous, and good comfort is provided for avehicle.

    本发明提供一种电动车双电机行星轮系无级变速电驱动系统,包括一级齿轮减速机构、二级齿轮减速机构;一级齿轮减速机构包括行与主驱动电机(1)连接的星轮系减速机构和与副驱动电机(11)连接的外啮合齿轮减速机构;行星轮系减速机构的齿圈与外啮合齿轮减速机构的外啮合从动齿轮相连接形成一体化结构(5);行星轮系减速机构的行星架(7)与二级齿轮减速机构连接,二级齿轮减速机构与差速器(10)连接。从而实现驱动电机的转速、扭矩、高效区最优化匹配,可以满足车辆加速性和最高车速的要求,实现电驱动系统高效化,最大限度的提高续航里程,并且动力变化过程连续无间断,为车辆提供了良好的舒适性。


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    Title :

    Double-motor planetary gear train stepless speed change electric drive system of electric vehicle


    Additional title:

    一种电动车双电机行星轮系无级变速电驱动系统


    Contributors:
    LI YANG (author) / SHI SHAOYOU (author) / LAN XIAODONG (author) / ZHAO ZHIYU (author)

    Publication date :

    2020-06-26


    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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