The invention discloses a motor driving current control method for a pure electric vehicle. The motor driving current control method comprises the steps of obtaining available power of a motor; obtaining the theoretical efficiency of the motor, and performing voltage compensation and temperature compensation on the theoretical efficiency of the motor to obtain the correction efficiency of the motor; determining the required power of the motor according to the available power of the motor and the correction efficiency of the motor; and controlling the motor driving current output by the power battery according to the required power of the motor. According to the invention, the problem of overdischarge or underdischarge of the power battery easily caused by the power battery protection modeof the existing pure electric vehicle can be effectively solved.

    本发明公开一种面向纯电动汽车的电机驱动电流控制方法,包括获取电机可用功率;获取电机理论效率,对该电机理论效率进行电压补偿和温度补偿,得到电机修正效率;根据所述电机可用功率和所述电机修正效率,确定电机需求功率;根据所述电机需求功率对动力电池输出的电机驱动电流进行控制。根据本发明,能够有效地解决现有纯电动汽车的动力电池保护方式容易导致动力电池过放电或欠放电的问题。


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    Title :

    Motor driving current control method for pure electric vehicle


    Additional title:

    面向纯电动汽车的电机驱动电流控制方法


    Contributors:
    ZHU MINGZHE (author) / ZHOU LAIBAO (author) / YUAN CHENGYIN (author) / ZHENG GUANGZHOU (author)

    Publication date :

    2020-11-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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