基于可拓理论的汽车主动悬架系统H_∞控制与优化  

H_∞ Control and Optimization for Vehicle Active Suspension System Based on Extension Theory

作　　者：汪洪波[1] 林澍[1] 孙晓文[1] 杨柳青[1] 陈无畏[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院,合肥230009

出　　处：《汽车工程》2016年第11期1382-1390,共9页Automotive Engineering

基　　金：国家自然科学基金(51305118);中央高校基本科研业务费专项(JZ2014HGBZ0374);江苏省道路载运工具新技术应用重点实验室开放基金(BM20082061504)资助

摘　　要：本文中在汽车主动悬架系统H_∞控制的基础上,建立其H_∞可拓控制器,并利用Matlab/Simulink软件对被动悬架和两种不同控制下的主动悬架系统进行对比仿真。结果表明,H_∞可拓控制可提高H_∞控制的鲁棒性,改善了汽车悬架控制性能和汽车乘坐舒适性。最后,通过实时动态调整可拓控制系数,进一步提高了主动悬架的控制性能。On the basis of vehicle active suspension system with H_∞control,a H_∞extensible controller is constructed and a comparative simulation is conducted on passive suspension and active suspensions with H_∞controller and H_∞extensible controller by using Matlab / Simulink. The results show that H_∞extensible control can enhance the robustness of H_∞control,and so improve the control performance of suspension and the ride comfort of vehicle. Finally by dynamically adjusting extensible control coefficient in real time,the control performance of active suspension is further improved.

关 键 词：主动悬架 H∞控制 可拓控制 参数摄动 

分 类 号：U463.33[机械工程—车辆工程]