Static-Output-Feedback Based Robust Fuzzy Wheelbase Preview Control for Uncertain Active Suspensions With Time Delay and Finite Frequency Constraint  

作　　者：Wenfeng Li Zhengchao Xie Jing Zhao Pak Kin Wong Hui Wang Xiaowei Wang 

机构地区：[1]School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou,and Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing,South China University of Technology,Guangzhou 510641,China [2]Department of Electromechanical Engineering,University of Macao,Macao 999078 [3]Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing,South China University of Technology,Guangzhou 510641,China [4]Department of Electromechanical Engineering,University of Macao,Macao 999078,China [5]School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510641,China [6]School of Mechanical Engineering and Automation,Northeastern University,Shenyang 110819,China

出　　处：《IEEE/CAA Journal of Automatica Sinica》2021年第3期664-678,共15页自动化学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(51705084);the Natural Science Foundation of Guangdong Province(2018A030313999,2019A1515011602);the Fundamental Research Funds for the Central Universities(N2003032);the Opening Project of Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing;South China University of Technology(2019kfkt06,2020kfkt05);the Research Grants of the University of Macao(MYRG2019-00028-FST);Guangdong Regular Institutions of Characteristic Innovation Project(2017KTSCX176);Key Laboratory of Robotics and Intelligent Equipment of Guangdong Regular Institutions of Higher Education(2017KSYS009);the National Key Research and Development Program of China(2017YFB1300200,2017YFB1300203)。

摘　　要：This paper proposes a static-output-feedback based robust fuzzy wheelbase preview control algorithm for uncertain active suspensions with time delay and finite frequency constraint.Firstly,a Takagi-Sugeno(T-S)fuzzy augmented model is established to formulate the half-car active suspension system with consideration of time delay,sprung mass variation and wheelbase preview information.Secondly,in view of the resonation between human’s organs and vertical vibrations in the frequency range of 4–8 Hz,a finite frequency control criterion in terms of H∞norm is developed to improve ride comfort.Meanwhile,other mechanical constraints are also considered and satisfied via generalized H2 norm.Thirdly,in order to maintain the feasibility of the controller despite of some state variables are not online-measured,a two stage approach is adopted to derive a static output feedback controller.Finally,numerical simulation results illustrate the excellent performance of the proposed controller.

关 键 词：Active suspension finite frequency output feedback Takagi-Sugeno(T-S)fuzzy model time delay wheelbase preview 

分 类 号：U463.33[机械工程—车辆工程] TP273[交通运输工程—载运工具运用工程]