电动汽车主动悬架约束H∞状态反馈控制策略与仿真研究  

Research on Control Strategy and Simulation of Constraint H∞ State Feedback for Active Suspension of Electric Vehicle

作　　者：陈品同 张博智[1] CHEN Pintong;ZHANG Bozhi(Shenyang Automotive Engineering School,Shenyang Liaoning 110122,China)

机构地区：[1]沈阳市汽车工程学校,辽宁沈阳110122

出　　处：《汽车零部件》2022年第9期12-19,共8页Automobile Parts

摘　　要：在充分考虑电动汽车主动悬架系统时域硬约束的前提下,基于半车模型,利用线性矩阵不等式技术设计了电动汽车主动悬架系统的约束H状态反馈控制器。为验证所提出的控制策略的可行性和有效性,对被动悬架和所设计的H状态反馈控制主动悬架在时域和频域内进行了悬架性能仿真比较分析。仿真结果表明:所提出的控制策略相比被动悬架而言,更能有效缓和不平路面冲击,抑制不平路面对车身的振动,提高了电动汽车的行驶平顺性。Under the premise of fully considering the time domain hard constraint for active suspension system of an electric vehicle,based on the half-car model, the constraints Hstate feedback controllers for active suspension system of the electric vehicle were designed by using linear matrix inequality technology. In order to verify the feasibility and effectiveness of the proposed control strategy, the suspension performances of the passive suspension and the designed Hstate feedback control active suspension were simulated and compared in the time domain and frequency domain. The simulation results show that the proposed control strategy is more effective than passive suspension in mitigating the impact of uneven road surface, restraining the vibration of uneven road surfaces on the vehicle body, and improving the ride comfort of electric vehicles.

关 键 词：电动汽车 主动悬架 时域硬约束 H∞控制 

分 类 号：U469.72[机械工程—车辆工程] U463.33[交通运输工程—载运工具运用工程]