The embodiment of the invention provides a control method of an electric automobile. The electric automobile comprises a main motor and an auxiliary motor. The control method comprises the steps thatafter the electric automobile enters regenerative braking, the required regenerative braking torque of the electric automobile is calculated; and if the required regenerative braking torque exceeds the maximum torque of the high-efficiency section of an auxiliary motor at the current rotating speed, the main motor and the auxiliary motor jointly provide the required regenerative braking torque according to the required regenerative braking torque, the mechanical power and the high-efficiency sections of the main motor and the auxiliary motor. Therefore, after the electric vehicle enters regenerative braking, the main motor and the auxiliary motor provide the required regenerative braking torque in respective efficient sections, the energy recovery rate is increased, the driving comfort isoptimized, and the problem of low energy recovery rate in the prior art is solved. The invention further provides a control device of the electric automobile and electronic equipment.

    本公开实施例提出了一种电动汽车的控制方法,电动汽车包括主电机和辅助电机,该控制方法包括:电动汽车进入再生制动后,计算电动汽车的需求再生制动扭矩。如果需求再生制动扭矩超出了当前转速下辅助电机的高效区间最大扭矩,由主、辅助电机根据需求再生制动扭矩、机械功率、主电机和辅助电机的高效区间共同提供需求再生制动扭矩。由此,实现了电动汽车进入再生制动后,主电机和辅助电机在各自的高效区间提供需求再生制动扭矩,提高了能量回收率,优化了驾驶的舒适度,解决了现有技术中能量回收率低的问题。本公开还提出了一种电动汽车的控制装置,一种电子设备。


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    Title :

    Control method and control device of electric automobile and electronic equipment


    Additional title:

    电动汽车的控制方法及其控制装置、电子设备


    Contributors:
    GUO SHENGJIE (author) / WU XIUQI (author) / HE JINGLIN (author) / PAN HONGMING (author)

    Publication date :

    2020-05-08


    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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