Finite frequency H-infinity control for active vehicle suspension systems subject to actuator faults
ZHENG Xiao-yuan
ZHANG Hao
WANG Zhu-ping
CHEN Qi-jun
Abstract：This paper addresses the problem of infinite frequency H-infinity control for active vehicle suspension systems with actuator faults.The generalized Kalman-Yakubovich-Popov(KYP)lemma is used to develop an H-infinity controller in specific frequency. The designed infinite frequency H-infinity controller not only can minimize the disturbances from road influencing passengers,but also can guarantee the vehicle suspension deflections and relation dynamic tire load in their allow scopes.It can be concluded that the designed infinite frequency H-infinity controller not only obtains passengers ride comfort,but also guarantees the constraints of active vehicle suspension systems. The dynamic output-feedback control approach is used to deal with the problem,which system states are not measured completely.Additionally,the characteristic of uncertain parameters and actuator faults are considered in controller design process.Finally,based on the quarter-vehicle active suspension system,simulations are presented to demonstrate the effectiveness of the designed controller in time and frequency domains.
Keywords：active suspension systemsthe generalized Kalman-Yakubovich-Popov (KYP) lemmafinite frequency H-infinity controllerdynamic output-feedback control approachactuator faults
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 1136-1142 )