The invention belongs to the technical field of electric automobiles, and relates to an electric automobile dual-motor driving system and a control method thereof. The dual-motor driving system comprises an outer shell, a first motor unit, a second motor unit, a rotating shaft, an angle sensor and a controller, the rotating shaft is arranged in the outer shell, and the first motor unit and the second motor unit are arranged at two ends of the rotating shaft; the power of the first motor unit is smaller than that of the second motor unit, the shaft end of the rotating shaft is connected with anangle sensor, the angle sensor is connected with a relay I and a relay II which are connected in parallel through a controller, the relay I is electrically connected with a control circuit of the first motor unit, and the relay II is electrically connected with a control circuit of the second motor unit. The invention has the beneficial effects that the system is simple and compact in overall structure, low in machining difficulty and good in heat dissipation effect, the motor operates at a high-efficiency economic rotating speed, the working efficiency of the motor is improved, electric energy is saved, and the endurance mileage of the electric automobile is increased.

    一种电动汽车双电机驱动系统及其控制方法,属于电动汽车技术领域,该双电机驱动系统,包括外壳体、第一电机单元、第二电机单元、转轴、角度传感器和控制器,外壳体内设置转轴,转轴的两端设置第一电机单元和第二电机单元,第一电机单元的功率小于第二电机单元的功率,转轴的轴端连接角度传感器,角度传感器通过控制器与两个相互并联的继电器Ⅰ和继电器Ⅱ相连,继电器Ⅰ与第一电机单元的控制电路电连接,继电器Ⅱ与第二电机单元的控制电路电连接,本发明的有益效果是,该系统整体结构简单紧凑,加工难度低,散热效果好,使电机运行在高效率的经济转速下,提高了电机的工作效率,节约了电能,提高了电动汽车的续航里程。


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    Title :

    Electric automobile dual-motor driving system and control method thereof


    Additional title:

    一种电动汽车双电机驱动系统及其控制方法


    Contributors:
    CHANG JIUJIAN (author) / SONG TINGLUN (author) / SAI YINGHUI (author) / CHU YAFENG (author) / WANG ZHICHAO (author) / QU YUAN (author)

    Publication date :

    2021-03-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / 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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