The invention discloses an electric automobile and a double-motor coaxial electric automobile drive axle thereof, and the drive axle comprises a left motor, a planetary gear differential mechanism, a right motor, a right half shaft and a left half shaft; the planetary gear differential mechanism comprises a right-row sun gear, a right-row planetary gear, a left-row sun gear, a left-row planetary gear and a differential planet carrier; the right-row sun gear is meshed with the right-row planetary gear, the left-row sun gear is meshed with the left-row planetary gear, the left-row planetary gear is meshed with the right-row planetary gear, and the right-row planetary gear and the left-row planetary gear are installed on the differential planet carrier. The left motor shaft and the right motor shaft are respectively in transmission fit with the differential planet carrier; one end of the right half shaft is fixedly connected with the right-row sun gear; and one end of the left half shaft is fixedly connected with the left-row sun gear. According to the design of the scheme, a single motor or double motors can be selected for driving according to the running working condition of a vehicle, the effect of a small structural envelope surface is achieved, the overall structure of the drive axle is made to be smaller, and meanwhile the energy consumption performance is improved.

    本发明公开了一种电动汽车及其双电机同轴电动汽车驱动桥,其中,该驱动桥包括:左电机、行星齿轮差速机构、右电机、右半轴和左半轴;行星齿轮差速机构包括:右排太阳轮、右排行星轮、左排太阳轮、左排行星轮和差速行星架;右排太阳轮与右排行星轮啮合,左排太阳轮与左排行星轮啮合,左排行星轮与右排行星轮啮合,右排行星轮和左排行星轮安装于差速行星架;左电机轴和右电机轴分别与差速行星架传动配合;右半轴的一端与右排太阳轮固定连接;左半轴的一端与左排太阳轮固定连接。本方案如此设计,以便于根据车辆的行驶工况,选择单电机或双电机驱动,达到了较小的结构包络面的效果,使得驱动桥的整体结构变小,同时也有助于提高了能耗表现。


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    Title :

    Electric automobile and double-motor coaxial electric automobile drive axle thereof


    Additional title:

    一种电动汽车及其双电机同轴电动汽车驱动桥


    Contributors:
    GE MIN (author) / PENG ZAIWU (author) / SHI WEI (author) / ZHAO LING (author) / LUO HONGLIANG (author) / TIAN GUANJUN (author) / ZHANG LING (author) / XIE QUAN (author) / JIANG LIANGXING (author) / MO JIANWEI (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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