摘要
针对轮毂电机对电动汽车平顺性的负效应,建立轮毂电机电动汽车四自由度振动平面模型,研究被动悬架和主动悬架对电动汽车脉冲平顺性的影响.应用约束状态H_(∞)控制方法,设计轮毂电机电动汽车主动悬架控制策略,开发了MATLAB/Simulink控制仿真模型.分析无偏心、10%偏心率和20%偏心率对轮毂电机激励的影响,比较轮毂电机电动汽车被动悬架和主动悬架的脉冲路面振动响应的时间历程和4种情况的平顺性评价指标.研究结果表明,轮毂电机偏心对电动汽车产生振动激励,既影响脉冲路面平顺性,也影响状态反馈H_(∞)控制效果.
Aiming at the negative effect of a hub motor on the ride comfort of an electric vehicle,a four-degree of freedom vibration plane model of hub motor electric vehicle is established,in order to study the influence of pas⁃sive suspension and active suspension on the pulse road ride comfort of the electric vehicle.An active suspension control strategy for hub motor electric vehicles is designed,and MATLAB/Simulink control simulation model is developed with the constrained state H_(∞)control method.The effects of no eccentricity,10%eccentricity,and 20%eccentricity on the excitation of the hub motor are analyzed.The time history of pulse road vibration response of pas⁃sive suspension and active suspension of hub motor electric vehicle,as well as the ride comfort evaluation indexes of four cases,are compared.The results show that the eccentricity of the hub motor can produce vibration excitation on the electric vehicle,which not only affects the pulse road ride comfort but also affects the state feedback H_(∞)control.
作者
李杰
贾长旺
成林海
赵旗
LI Jie;JIA Changwang;CHENG Linhai;ZHAO Qi(State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130025,China)
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2022年第8期12-20,共9页
Journal of Hunan University:Natural Sciences
基金
汽车仿真与控制国家重点实验室自由探索项目(ASCL-Zytsxm-202001)省校共建项目(SXGJSF2017-2-1-1)国家自然科学基金国际(地区)合作与交流重点项目(61520106008)。
关键词
电动汽车
主动悬架系统
鲁棒控制
状态反馈
脉冲路面
electric vehicles
active suspension systems
robust control
state feedback
pulse road
