H∞ Control of Active Suspension with Actuator Time Delay and Vehicle Parameter Uncertainties
The paper deals with the H∞ control problem for active vehicle suspension systems with actuator time delay and vehicle inertial parameter uncertainties.The time delay for the actuator is assumed as uncertain time-invariant but has a known constant bound.Three main performance requirements for advanced vehicle suspensions (ride comfort,road holding,and suspension deflection) are considered by constructing an appropriate state feedback H∞ controller to provide a trade-off between these requirements.The feasible solutions can be obtained by linear matrix inequalities (LMIs) using standard numerical algorithms.A quarter-car model with active suspension system is considered in this paper and a numerical example is employed to illustrate the effectiveness of the proposed approach.It is confirmed by the simulations that the designed controller not only can achieve good vehicle suspension performance but also preserves the closed-loop stability in spite of the existence of both the vehicle inertial parameter variation and the actuator time delay.
Active suspension Actuator time delay Parameter uncertainties Linear matrix inequalities
Chen Changfang Jia Yingmin
The Seventh Research Division,Beihang University (BUAA),Beijing 100191,China Key Laboratory of Mathematics,Informatics and Behavioral Semantics (LMIB).Ministry of Education,SMSS
国内会议
北京
英文
214-224
2010-10-30（万方平台首次上网日期，不代表论文的发表时间）