基于磁流变减振器汽车半主动悬架的最优控制仿真

摘要

A two-degree-of-freedom 1/4 vehicle semi-active suspension model was established.Making use of linear optimal theory,LQG controller of semi-active suspension was designed based on MR damper,which was also simulated with the MATLAB/SIMULINK software.The simulation result expatiates that Semi-active suspension based on MR with LQG controller improves vehicle＇s riding comfort performances effectively.%建立了二自由度1/4汽车半主动悬架模型,在线性最优化理论的基础上设计出磁流变减振器半主动悬架的最优控制器,并在MATLAB/SIMULINK环境下进行仿真,结果表明采用最优控制器的流变减振器半主动悬架有效地改善了汽车行驶平顺性和乘坐舒适性。