Fuzzy adaptive tracking control for nonlinear suspension systems based on a bio-inspired reference model

摘要

This paper deals with the bio-inspired reference model based fuzzy adaptive tracking control problems for active suspension systems. Particularly, a nonlinear damping is designed to improve nonlinear damping characteristics of the original bio-inspired reference model. With the beneficial nonlinear stiffness and improved nonlinear damping of the bio-inspired reference model, the proposed fuzzy adaptive controller can effectively suppress vibration of the suspension system with less actuator force, hence both improved ride comfort and energy efficiency are achieved. Finally, a quarter-vehicle active suspension system with considering payload uncertainties is provided for evaluating the validity and superiority of the bio-inspired model based fuzzy adaptive tracking control approach proposed in this paper.