The invention relates to a two-gear power system of a dual-motor pure electric vehicle. Comprising a first motor, a second motor, a first transmission mechanism connected with the first motor, a second transmission mechanism connected with the second motor, an intermediate shaft connected with the first transmission mechanism and the second transmission mechanism, and a one-way clutch located between the intermediate shaft and the first transmission mechanism. The third transmission mechanism is connected with the intermediate shaft; and the wheels are connected with the third transmission mechanism. Correspondingly, the invention further provides a control method based on the two-gear power system. According to the two-gear power system of the double-motor pure electric vehicle, a double-motor two-gear structure is adopted, and the power performance requirements of the whole vehicle under the working conditions of starting, rapid acceleration and the like can be met; through the arrangement of the one-way clutch, the first motor is selectively disconnected, the power consumption is effectively reduced, the second motor is prevented from reversely dragging the first motor, the electrode is protected, and the reliability of the system is enhanced.

    本发明涉及一种双电机纯电动汽车的两档动力系统,包括第一电机、第二电机、与所述第一电机相连接的第一传动机构、与所述第二电机相连接的第二传动机构、与所述第一传动机构与第二传动机构相连接的中间轴、位于所述中间轴与所述第一传动机构之间的单向离合器、与所述中间轴相连接的第三传动机构以及与所述第三传动机构相连接的车轮。相应的,还提供基于两档动力系统的控制方法。本发明提供的双电机纯电动汽车的两档动力系统,采用了双电机两档结构,可以满足整车在起步、急加速等工况下的动力性能需求;通过单向离合器的设置,对第一电机进行选择性断开,有效降低了电耗,并防止第二电机对第一电机的反拖,保护了电极,增强了系统的可靠性。


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    Title :

    Two-gear power system of dual-motor pure electric vehicle and control method of two-gear power system


    Additional title:

    一种双电机纯电动汽车的两档动力系统及其控制方法


    Contributors:
    SHI GUOFEI (author) / ZHEN YUKE (author) / WANG CHUAN (author) / ZHANG LIANG (author) / MO YUZHAO (author)

    Publication date :

    2022-03-15


    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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