The invention provides an anti-shake control method for a pure electric vehicle, which comprises the following steps of: calibrating compensation rotating speeds required under different motor rotating speed fluctuation accelerations through a rack, and establishing a corresponding table of the rotating speed fluctuation accelerations and the compensation rotating speeds; acquiring a motor rotating speed signal of the vehicle in real time, and filtering the motor rotating speed signal to remove the influence of high-frequency noise and random load on the motor rotating speed; according to the filtered motor rotating speed signal, calculating to obtain the rotating speed fluctuation acceleration of the motor and the rotating speed of the motor in a set time period, and obtaining a corresponding compensation rotating speed through the corresponding table; and anti-shake compensation torque is obtained through calculation according to the motor rotating speed and the compensation rotating speed, and the compensation torque is superposed on request torque output by a vehicle control unit so as to restrain vehicle shake. The method can reduce vehicle shaking and improve the comfort of a user.
本发明提供一种纯电动汽车防抖控制方法,包括:通过台架标定不同的电机转速波动加速度下所需要的补偿转速,并建立转速波动加速度与补偿转速的对应表;实时采集车辆的电机转速信号,并将所述电机转速信号进行滤波处理,以去除高频噪声和随机载荷对电机转速的影响;根据过滤后的电机转速信号计算得到设定时段内电机的转速波动加速度和电机转速,并通过所述对应表得到对应的补偿转速;根据所述电机转速和所述补偿转速计算得到防抖补偿扭矩,并将所述补偿扭矩叠加在整车控制器输出的请求扭矩上,以抑制车辆抖动。本发明能降低车辆抖动,提高用户的舒适性。
Anti-shake control method for pure electric vehicle
一种纯电动汽车防抖控制方法
2023-04-07
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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