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Nonfragile H∞ Control of Delayed Active Suspension Systems in Finite Frequency under Nonstationary Running
Li W.2; Xie Z.2; Wong P.K.3; Ma X.3; Cao Y.1; Zhao J.3
2019-06-01
Source PublicationJournal of Dynamic Systems, Measurement and Control, Transactions of the ASME
ISSN15289028 00220434
Volume141Issue:6
AbstractThe vehicle active suspension has drawn considerable attention due to its superiority in improving the vehicle dynamic performance. This paper investigates the nonfragile H control of delayed vehicle active suspension in a finite frequency range under nonstationary running. The control objective is to improve ride quality in a finite frequency band and ensure suspension constraints, and a quarter car model of the active suspension is established for a controller design. Then, the input delay, actuator uncertainty, and external disturbances are considered in the controller design. Moreover, a further generalization of the strict S-procedure is utilized to derive a sufficient condition in terms of linear matrix inequality (LMI) to capture performance in the concerned frequency range. Furthermore, a multi-objective controller is designed based on projection lemma in the framework of the solution of LMIs. A nonstationary road profile is established, and numerical simulations are also conducted to show the effectiveness and robustness of the proposed controller. Finally, experimental tests on a quarter-car test rig are implemented to examine the performance of the proposed controller for real applications.
KeywordActive suspension multi-objective control robust control suspension control
DOI10.1115/1.4042468
URLView the original
Language英語
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Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTROMECHANICAL ENGINEERING
Affiliation1.Guangzhou Automobile Group Co., Ltd.
2.South China University of Technology
3.Universidade de Macau
Recommended Citation
GB/T 7714
Li W.,Xie Z.,Wong P.K.,et al. Nonfragile H∞ Control of Delayed Active Suspension Systems in Finite Frequency under Nonstationary Running[J]. Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME,2019,141(6).
APA Li W.,Xie Z.,Wong P.K.,Ma X.,Cao Y.,&Zhao J..(2019).Nonfragile H∞ Control of Delayed Active Suspension Systems in Finite Frequency under Nonstationary Running.Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME,141(6).
MLA Li W.,et al."Nonfragile H∞ Control of Delayed Active Suspension Systems in Finite Frequency under Nonstationary Running".Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME 141.6(2019).
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