|Evaluation of Ride Comfort for Active Suspension System Based on Selftuning Fuzzy Sliding Mode Control
Chun-Yu Hsiao* and Yu-Hsien Wang
International Journal of Control, Automation, and Systems, vol. 20, no. 4, pp.1131-1141, 2022
Abstract : This paper describes the application of a self-tuning fuzzy sliding mode controller (STFSMC) to design the control signal of an electro-hydraulic actuator under standard road excitation based on ISO 8608. The proposed damper was designed to achieve effective vibration isolation with an actuator force. The proposed damper was incorporated into a quarter-car system through experiments for the subsequent dynamic analysis of the suspension system. A single-input single-output (SISO) fuzzy inference was strategically used to regulate the slope of a sliding surface. In addition, the fuzzy control methodology was applied to achieve self-tuning online output of the scale factor of the fuzzy sliding mode controller. The comfortable riding time and ride comfort level were also evaluated based on ISO 2631-1. Experimental results revealed that the proposed controller demonstrated evident improvements in vehicle vibration suppression and the ride quality in comparison with passive and fuzzy logic controller control systems.
"Active suspension systems, fuzzy sliding mode control, ride comfort, self-tuning. "