The invention relates to a jitter control method and device for a driving motor and a vehicle. The method comprises the steps of obtaining a plurality of motor rotating speed differences of a drivingmotor at a plurality of moments according to the real-time rotating speeds of the driving motor at the plurality of moments in a preset duration after the vehicle is started and a target rotating speed obtained by carrying out compensation on a basic average rotating speed; determining whether the driving motor is in a jitter state or not according to the plurality of motor rotating speed differences, the rotating speed variance of the plurality of motor rotating speed differences and a waveform curve of the plurality of motor rotating speed differences; and when it is determined that the driving motor is in the jitter state, determining a target torque output by the driving motor at the current moment according to the steady-state torque and the compensation torque of the driving motor soas to control the jitter state of the driving motor. Real-time monitoring and torque compensation can be carried out on the jitter condition of the driving motor according to the difference value between the real-time rotating speed and the target rotating speed, and the accuracy of vehicle jitter control is improved on the basis that the manufacturing cost and energy consumption are not increased.

    本公开涉及一种驱动电机的抖动控制方法、装置和车辆,该方法包括:根据驱动电机在车辆启动后的预设时长内的多个时刻的实时转速和对基础平均转速进行补偿获取到的目标转速,获取该驱动电机在上述多个时刻的多个电机转速差;根据上述多个电机转速差、上述多个电机转速差的转速方差以及上述多个电机转速差的波形曲线确定该驱动电机是否处于抖动状态;当确定该驱动电机处于抖动状态时,根据该驱动电机的稳态转矩和补偿转矩,确定该驱动电机在当前时刻输出的目标转矩,以对该驱动电机的抖动状态进行控制。能够根据实时转速与目标转速的差值对驱动电机的抖动情况进行实时监测和转矩补偿,在不增加制造成本和能耗的基础上,提高车辆抖动控制的精确度。


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    Title :

    Jitter control method and device for driving motor and vehicle


    Additional title:

    驱动电机的抖动控制方法、装置和车辆


    Contributors:
    YAN ERDONG (author)

    Publication date :

    2020-07-07


    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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