The invention discloses a cooling and lubricating system of an electric drive system of a pure electric vehicle and a control method thereof.The electric drive cooling and lubricating system comprises an oil cooling loop and a water cooling loop, and the oil cooling loop comprises an electric oil pump, an oil cooler, a speed reducer, a one-way valve, a driving motor, a first temperature sensor, an oil tank, a second temperature sensor and a filter; the water cooling loop comprises an electric water pump, a radiator, a motor controller and an oil cooler, and the oil cooling loop and the water cooling loop exchange heat through the oil cooler; the temperature of the driving motor, the temperature of the oil tank and the temperature of the motor controller are obtained, the temperature of the driving motor is compared with the threshold temperature, opening and closing of the one-way valve are controlled, the temperature of the oil tank is compared with the threshold temperature, the temperature of the motor controller is compared with the threshold temperature, and opening and closing of the electric water pump are controlled. All parts of the electric drive system can be efficiently cooled and lubricated, and the good heat dissipation effect is guaranteed.

    本发明公开了一种纯电动汽车电驱系统的冷却与润滑系统及其控制方法,电驱冷却与润滑系统包括油冷回路和水冷回路,油冷回路包括电动油泵、油冷器、减速器、单通阀、驱动电机、第一温度传感器、油箱、第二温度传感器和过滤器,水冷回路包括电动水泵、散热器、电机控制器和油冷器,油冷回路和水冷回路通过油冷器进行换热;通过获取驱动电机的温度、油箱的温度和电机控制器的温度,比较驱动电机的温度与阈值温度,控制单通阀的开闭,比较油箱的温度与阈值温度以及电机控制器的温度与阈值温度,控制电动水泵的开闭。本发明能够能对电驱系统各零部件进行高效地冷却与润滑,保证良好的散热效果。


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    Title :

    Cooling and lubricating system of electric drive system of pure electric vehicle and control method of cooling and lubricating system


    Additional title:

    一种纯电动汽车电驱系统的冷却与润滑系统及其控制方法


    Contributors:
    LI MENG (author) / GAO YOUYOU (author) / XU XING (author) / LI YONG (author) / LIAN YUBO (author) / LING HEPING (author) / QIU SONG (author)

    Publication date :

    2022-12-06


    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 / F16N LUBRICATING , Schmierung



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