Design of Constrained Robust Controller for Active Suspension of In-Wheel-Drive Electric Vehicles

Xianjian Jin, Jiadong Wang, Shaoze Sun, Shaohua Li, Junpeng Yang and Zeyuan Yan
Additional contact information
Xianjian Jin: School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072, China
Jiadong Wang: School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072, China
Shaoze Sun: School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072, China
Shaohua Li: State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
Junpeng Yang: School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072, China
Zeyuan Yan: School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072, China

Mathematics, 2021, vol. 9, issue 3, 1-16

Abstract: This paper presents a constrained robust H ∞ controller design of active suspension system for in-wheel-independent-drive electric vehicles considering control constraint and parameter variation. In the active suspension system model, parameter uncertainties of sprung mass are analyzed via linear fraction transformation, and the perturbation bounds can be also limited, then the uncertain quarter-vehicle active suspension model where the in-wheel motor is suspended as a dynamic vibration absorber is built. The constrained robust H ∞ feedback controller of the closed-loop active suspension system is designed using the concept of reachable sets and ellipsoids, in which the dynamic tire displacements and the suspension working spaces are constrained, and a comprehensive solution is finally derived from H ∞ performance and robust stability. Simulations on frequency responses and road excitations are implemented to verify and evaluate the performance of the designed controller; results show that the active suspension with a developed H ∞ controller can effectively achieve better ride comfort and road-holding ability compared with passive suspension despite the existence of control constraints and parameter variations.

Keywords: robust control; active suspension; electric vehicles (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2227-7390/9/3/249/pdf (application/pdf)
https://www.mdpi.com/2227-7390/9/3/249/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jmathe:v:9:y:2021:i:3:p:249-:d:487756

Access Statistics for this article

Mathematics is currently edited by Ms. Emma He

More articles in Mathematics from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().