基于AHP的车辆半主动悬架LQG控制方法研究  

Research on LQG Control Method of Vehicle Semi-active Suspension Based on AHP

作　　者：孙宇菲 陈双[1] 姜强 Sun Yunfei;Chen Shuang;Jiang Qiang(College of Automobile and Transportation Engineering, Liaoning University of Technology, Liaoning Jinzhou 121001)

机构地区：[1]辽宁工业大学汽车与交通工程学院

出　　处：《汽车实用技术》2019年第17期75-76,共2页Automobile Applied Technology

基　　金：国家自然科学（编号51605213）资助

摘　　要：建立2自由度1/4车辆模型,以最优控制理论为基础,应用层次分析法(AHP)确定车辆评价指标的加权系数,实现半主动悬架LQG控制器设计,利用Matlab/Simulink进行仿真验证与分析。结果表明:相对于被动悬架,应用层次分析法确定LQG控制器加权系数的半主动悬架,实现了评价指标的综合优化,缓和路面冲击,提高车辆平顺性及舒适性。A two-degree-of-freedom 1/4 vehicle model is established. Based on the linear optimal control theory, the weighting coefficient of the vehicle evaluation index is determined by using the Analytic Hierarchy Process(AHP). The design of the semi-active suspension LQG controller is realized, and the simulation is performed by Matlab/Simulink. Verification and analysis. The results show that compared with the passive suspension, the semi-active suspension of the weighting coefficient of the LQG controller is determined by the analytic hierarchy process, which realizes the comprehensive optimization of the evaluation index, mitigates the road impact and improves the ride comfort and comfort of the vehicle.

关 键 词：半主动悬架 LQG控制器 层次分析法 

分 类 号：U462.3[机械工程—车辆工程]