The invention discloses a vehicle jitter suppression method and device, a vehicle and a medium, and mainly relates to the field of motor control. The method is applied to a motor control system, and the system comprises a signal acquisition circuit, a first processor, a signal output circuit and an inverter. The signal acquisition circuit is used for acquiring the rotating speed of the motor, the target torque of the motor of the vehicle control unit, the three-phase current of the motor and the direct-current voltage of the high-voltage power supply; the first processor is used for calculating a suppression torque according to the motor rotating speed and the motor target torque, and calculating a duty ratio according to the motor rotating speed, the three-phase current, the direct-current voltage and the suppression torque; the signal output circuit is used for generating a pulse signal according to the duty ratio and outputting the pulse signal to the inverter; the inverter is used for converting the direct-current voltage into three-phase voltage according to the pulse signal and driving the motor to output suppression torque through the three-phase voltage. The suppression torque is obtained based on the motor rotating speed and changes along with the change of the motor rotating speed, so that the problem of vehicle shaking in the full-speed domain range can be solved.

    本申请公开了一种车辆抖动抑制方法、装置、车辆及介质,主要涉及电机控制领域。该方法应用于电机控制系统,该系统包括信号采集电路,第一处理器,信号输出电路和逆变器;信号采集电路用于采集电机转速、整车控制器的电机目标扭矩、电机的三相电流和高压电源的直流电压;第一处理器用于根据电机转速和电机目标扭矩计算抑制扭矩,根据电机转速、三相电流、直流电压和抑制扭矩计算占空比;信号输出电路用于根据占空比产生脉冲信号,并将脉冲信号输出至逆变器;逆变器用于根据脉冲信号将直流电压转化为三相电压,并通过三相电压驱动电机输出抑制扭矩。由于抑制扭矩基于电机转速求得,随电机转速变化而变化,因此能够解决全速域范围内的车辆抖动问题。


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    Title :

    Vehicle jitter suppression method and device, vehicle and medium


    Additional title:

    一种车辆抖动抑制方法、装置、车辆及介质


    Contributors:
    MA CHAOWEN (author) / LI YONG (author) / LIU KUNPENG (author) / YUAN CHANGYOU (author) / HE DONGCHENG (author) / ZHENG JUNHUI (author) / MA FUTAO (author) / HOU JIQIANG (author)

    Publication date :

    2023-06-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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