The invention provides an electric vehicle torsional vibration suppression method and device, a vehicle and a storage medium, and the method comprises the steps that operation parameters of a motor are obtained, and the operation parameters comprise the actual output torque at the current moment, the actual rotating speed, the request torque at the next moment and a torque change parameter corresponding to switching from the actual output torque to the request torque; inputting the actual output torque and the actual rotating speed into a preset prediction model, and predicting an ideal rotating speed of the motor at the next moment under the actual output torque; calculating the actual rotating speed and the ideal rotating speed to obtain a rotating speed fluctuation quantity; determining an anti-shake torque according to the rotating speed fluctuation quantity, and superposing the anti-shake torque to the request torque to obtain a target torque of the motor at the next moment; and controlling the motor to switch from the actual output torque to the target torque according to the torque change parameter. Torsional vibration suppression is carried out according to the torque change parameter and the anti-shake torque, the torsional vibration suppression effect is enhanced, and therefore the driving comfort of the electric automobile is ensured.
本申请提供一种电动汽车扭振抑制方法、装置、车辆及存储介质,该方法包括:获取电机的运行参数,运行参数包括在当前时刻的实际输出扭矩、实际转速、在下一时刻的请求扭矩以及从实际输出扭矩切换至请求扭矩对应的扭矩变化参数;将实际输出扭矩与实际转速输入预设的预测模型,预测电机在实际输出扭矩下下一时刻的理想转速;对实际转速与理想转速进行计算,获得转速波动量;根据转速波动量确定防抖扭矩,并将防抖扭矩叠加至请求扭矩,获得电机在下一时刻的目标扭矩;按照扭矩变化参数,控制电机从实际输出扭矩切换至目标扭矩。根据扭矩变化参数和防抖扭矩进行扭振抑制,增强了扭振抑制效果,从而确保了电动汽车的驾乘舒适度。
Electric vehicle torsional vibration suppression method and device, vehicle and storage medium
电动汽车扭振抑制方法、装置、车辆及存储介质
17.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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