Non‐fragile multi‐objective linear parameter‐varying controller design for vehicle lateral stability. Issue 18 (19th October 2020)

• Record Type: Journal Article
• Authors: Li, Pengxu; Li, Panshuo; Zhao, Jing; Zhang, Bin
• Is Part Of: IET control theory & applications. Volume 14:Issue 18(2020)
• Page Start: 2717
• Page End: 2725
• Publication Date: 2020-10-19
• Subjects: tyres -- time‐varying systems -- robust control -- control system synthesis -- uncertain systems -- linear matrix inequalities -- perturbation techniques -- mechanical stability -- vehicle dynamics -- actuators -- state feedback; multiobjective linear parameter‐varying controller design -- vehicle lateral stability -- nonfragile controller design -- tire cornering stiffness -- actuator saturation -- vehicle longitudinal velocity -- velocity‐dependent parameters -- norm‐bounded perturbation -- controller gain -- linear matrix inequalities -- nonfragile linear parameter‐varying controller -- vehicle dynamics system -- handling performance; Control theory -- Periodicals; Automatic control -- Periodicals; 629.8312
• DOI: 10.1049/iet-cta.2020.0514
• Languages: English
• ISSNs: 1751-8644

Abstract

Abstract : This study investigates the robust non‐fragile controller design for vehicle lateral stability, with considering the uncertainties of tire cornering stiffness and actuator saturation. The vehicle longitudinal velocity is assumed to be time varying and the velocity‐dependent parameters are described within a trapezoid polytope. The norm‐bounded perturbation of controller gain is taken into account which is more practical. By solving the linear matrix inequalities, the non‐fragile linear parameter‐varying controller is obtained to satisfy the mixed H ∞ and G H 2 performance of the vehicle dynamics system. With the designed controller, the sideslip angle and yaw rate of vehicle are restricted effectively to guarantee the lateral stability and handling performance. Two simulations are carried out to validate the effectiveness of the designed controller.