基于电机转速波动补偿的电动车防抖控制设计

Design of Anti-Shake Control of Pure Electric Vehicle Based on Motor Speed Fluctuation Compensation

针对常用的纯电动乘用车加减速过程中存在的冲击抖动问题,以某款纯电动乘用车为研究对象,分析了其加减速过程中存在的冲击抖动的原因以及电机扭矩关系,提出了基于电机转速波动补偿的电动车防抖控制设计方法。在此基础上,建立了纯电动乘用车防抖控制模型,运用MATLAB/Simulink对纯电动乘用车加减速过程中存在的冲击抖动问题进行了转速跟踪和滤波,并进行扭矩补偿控制,得到了补偿后的扭矩控制,获取了给定工况下的纯电动乘用车防抖控制转速滤波和扭矩补偿相关参数。结果表明:通过对转速滤波和扭矩补偿在满足纯电动乘用车动力性要求的基础上,能有效地降低抖动的程度进而提高舒适性。

Aimed at the problem of the pure electric vehicle shock which caused by torque change required in different acceleration process.Using pure electric vehicle as a study object,the reasons of vehicle shock in different acceleration process and the relationship between motor torque were analyzed,and an anti-shake control method of pure electric vehicle of the acceleration process based on motor speed fluctuation compensation was proposed.On this basis,the anti-shake control model of pure electric vehicle was established,and the speed tracking and filtering were carried out for the problem of impact shake in different acceleration process of pure electric vehicle by using MATLAB/Simulink.The torque compensation control was carried out and the compensated torque control was obtained.The parameters related to speed filtering and torque compensation of anti-shake control of pure electric vehicle under given working conditions were obtained.The research results show that speed filtering and torque compensation can effectively reduce the degree of jitter and improve the comfort on the basis of meeting the power requirements of pure electric vehicles.