The invention discloses an electric drive system anti-shake control method, which comprises the following steps: acquiring a motor rotating speed signal and a motor torque signal, performing two-stage filtering processing on the motor rotating speed signal, and sending the motor rotating speed signal processed by a first-stage filter into a second-stage filter, subtracting the motor rotating speed signal processed by the second-stage filter from the motor rotating speed estimation signal processed by the first-stage filter to obtain a motor rotating speed difference signal, and comparing the motor rotating speed difference signal with a threshold a to obtain an anti-shake torque I; converting a motor torque signal into a motor rotating speed estimation signal through a rotating speed conversion module, and subtracting the converted motor rotating speed estimation signal from the motor rotating speed signal processed by the first-stage filter. obtaining a theoretical rotating speed through a preset algorithm, comparing the rotating speed difference of the motor with the rotating speed difference of the motor according to a preset judgment condition to perform torque compensation, and if-a < n1-n0 < a, not performing torque compensation; if n1-n0 > = a or n1-n0 < =-a, starting torque compensation.
本发明公开了一种电驱动系统防抖控制方法,包括:获取电机转速信号和电机扭矩信号,将电机转速信号进行两级滤波处理,将经过第一级滤波器处理后的电机转速信号送入第二级滤波器,将经过第二级滤波器处理后的电机转速信号与经过第一级滤波器处理后的电机转速估量信号作差,得到电机转速差信号,将电机转速差信号与阈值a进行对比得到防抖扭矩一;将电机扭矩信号通过转速转换模块转换成电机转速估量信号,将转换后的电机转速估量信号与经第一级滤波器处理后的电机转速信号作差。通过预设算法得到理论转速,通过电机转速差与根据预设判断条件做比较进行扭矩补偿作比较,若‑a<n1‑n0<a,则无需进行扭矩补偿;若n1‑n0≥a或n1‑n0≤‑a,则开启扭矩补偿。
electric drive system anti-shake control method
一种电驱动系统防抖控制方法
2021-07-30
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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