The invention discloses a dual-motor two-gear power assembly driving system suitable for a pure electric vehicle, and belongs to the technical field of pure electric vehicle driving systems. The driving system comprises two driving motors distributed on a front driving shaft and a rear driving shaft, a two-gear transmission arranged on a rear shaft, a speed reducer arranged on a front shaft, a clutch and a related electric control system. Compared with more single-motor and fixed-speed-ratio speed reducer driving systems on the market at present, the driving system can realize five driving modes by controlling opening and closing of the clutch and switching of gears of the transmission, and when the vehicle is driven, the mode with higher efficiency is selected for driving. Therefore, on the basis that the vehicle cost and the control complexity are not increased, the economical efficiency of the vehicle is brought into full play, four-wheel drive of the vehicle can be achieved through the arrangement of the front shaft and the rear shaft of the double motors, and the trafficability and the controllability of the vehicle under extreme road conditions are improved.

    本发明公开了一种适用于纯电动汽车的双电机两挡动力总成驱动系统,属于纯电动汽车驱动系统技术领域。该驱动系统包括分布在前后驱动轴上的两个驱动电机,布置在后轴上的两档变速器,布置在前轴的减速器及离合器以及相关电控系统组成。相比于目前市面上较多的单电机+固定速比减速器驱动系统,该驱动系统通过控制离合器的开合及变速器挡位的切换,可以实现五种驱动模式,在车辆进行驱动时,选用效率较高的模式进行驱动,从而在不增加车辆成本和控制复杂程度的基础上,充分发挥车辆经济性,并且双电机前后轴布置可以实现车辆四轮驱动,增加车辆在极端路况下的通过性与可操控性。


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    Title :

    Dual-motor two-gear power assembly driving system suitable for pure electric vehicle


    Additional title:

    一种适用于纯电动汽车的双电机两挡动力总成驱动系统


    Contributors:
    RUAN JIAGENG (author) / LI SHIYU (author)

    Publication date :

    2021-06-04


    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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