Adaptive Fuzzy Control for Active Suspension Systems with Time-Varying Displacement and Speed Constraints

In this article, an adaptive backstepping fuzzy control strategy is proposed for the active suspension systems (ASSs) with the time-varying constraints. The fuzzy-logic control is used to tackle unknown mass of the ASSs. When the constraint is violated, the stability and safety of the ASSs will be reduced. Thus, the Barrier Lyapunov functions are used to show the closed-loop system’s stability by ensuring that the time-varying restrictions are not broken. Finally, numerical simulations are presented to confirm effectiveness of the proposed approach.