The invention relates to the technical field of vehicles, and discloses a motor torque zero-crossing control method and device, a vehicle, electronic equipment and a medium. According to the method, when wheels of the vehicle are in a braking static state, a motor of the vehicle is controlled to output positive and negative period torques of multiple test periods, so that a gear performs tooth leaning movement on different sides; and monitoring the mechanical angle of a motor rotor, determining a periodic transmission system gap, determining average transmission system gap matching to obtain a target torque gradient correction value, and determining the current torque zero-crossing gradient of the vehicle based on the target torque gradient correction value and a preset basic zero-crossing torque gradient value so as to perform torque zero-crossing control on the motor of the vehicle. The current torque zero-crossing gradient of the vehicle is corrected at different time of the vehicle life cycle, so that the adaptability of the current torque zero-crossing gradient to the vehicle is ensured, the problem of vehicle zero-crossing abnormal sound is reduced, and the smoothness of the output torque of a vehicle power system is improved.
本发明涉及车辆技术领域,公开了一种电机扭矩过零控制方法、装置、车辆、电子设备及介质,该方法通过在车辆的车轮处于制动静止状态下,控制车辆的电机输出多个测试周期的正负周期扭矩,以使齿轮进行不同侧靠齿运动,监测电机转子机械角度并确定周期传动系统间隙,进而确定平均传动系统间隙匹配得到目标扭矩梯度修正值,基于目标扭矩梯度修正值和预设基础过零扭矩梯度值确定车辆的当前扭矩过零梯度,以对车辆的电机进行扭矩过零控制,通过在车辆生命周期的不同时间对车辆的当前扭矩过零梯度进行修正,保证了当前扭矩过零梯度对车辆的适配性,减少车辆过零异响问题,提升车辆动力系统输出扭矩的平顺性。
Motor torque zero-crossing control method and device, vehicle, electronic equipment and medium
电机扭矩过零控制方法、装置、车辆、电子设备及介质
12.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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