The invention relates to the technical field of new energy vehicles, and provides a control method and system for restraining motor shaking and a vehicle. The method comprises the steps that wheel speed information of a vehicle is acquired, and the jitter amount of the wheel speed is calculated based on the wheel speed information; obtaining the actual torque of the motor, and calculating the torque difference between the actual torque and the target torque of the motor; and activating the jitter control module to execute jitter control in response to the wheel speed of the vehicle being lower than the set wheel speed, the absolute value of the jitter amount being greater than the calibrated threshold value, and the torque difference being equal to 0; the jitter control includes obtaining a compensation torque based on the jitter amount, and controlling the motor to output the compensation torque to suppress jitter of the motor speed. According to the technical scheme, by automatically recognizing the road excitation and intelligently judging the jitter control execution condition, active execution of motor jitter control is achieved, vehicle vibration is effectively reduced, the vehicle noise level is reduced, and the riding comfort of the vehicle is improved.
本申请涉及新能源汽车技术领域,提供一种抑制电机抖动的控制方法、系统及车辆。所述方法包括:获取车辆的轮速信息,并基于轮速信息计算轮速的抖动量;获取电机实际扭矩,并计算其与电机目标扭矩的扭矩差值;以及响应于车辆的轮速低于设定轮速、并且抖动量的绝对值大于标定阈值、并且扭矩差值等于0,激活抖动控制模块以执行抖动控制;执行抖动控制包括:基于抖动量得到补偿扭矩,以及控制电机输出补偿扭矩,以抑制电机转速的抖动。根据本申请的技术方案,通过自动识别路面激励,并智能判断抖动控制执行条件,实现了主动执行电机抖动控制,有效降低了车辆振动、减小了车辆噪声水平,提高了车辆的乘坐舒适性。
Control method and system for restraining motor shaking and vehicle
抑制电机抖动的控制方法、系统及车辆
2024-04-19
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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