基于Simulink的车辆主动悬架LQG控制器的设计  

Design of LQG Controller of Automobile Active Suspension Based on Simulink

作　　者：周凯[1] 韩振南[1] 

机构地区：[1]太原理工大学车辆工程系,太原030024

出　　处：《汽车科技》2010年第2期21-23,共3页Auto Sci-Tech

基　　金：山西省归国留学人员科学基金项目(2007-33)

摘　　要：建立了二自由度1/4车体的数学模型,并利用线性最优化控制理论进行了汽车主动悬架的LQG控制器设计,并在Matlab/Simulink环境下进行仿真,结果表明具有LQG控制器的主动悬架对车辆行驶平稳性和乘坐舒适性有了很大的改善。A 2-degree-of-freedoms 1/4 body equations of vehicle active suspension was established.Based on the linear optimal theory,a LQG（linear Quadratic Gaussian）controller of automobile active suspension which is used for simulation with the aid of Matlab/simulink software was desighed.It showed that the suspension with the LQG controller could effectively improve vehicle’s riding performances.

关 键 词：LQG控制 主动悬架 MATLAB/SIMULINK 仿真 

分 类 号：U462.33[机械工程—车辆工程]