Adaptive sliding mode control for switched system under injection attacks: The dynamic output feedback approach

Abstract This paper investigates the sliding mode control (SMC) problem for switched systems with unknown system states under injection attack. Due to the uncertainty and the unknown upper bounds of the attack, an adaptive SMC controller is designed. Besides, the reachability of the predefined sliding surface is rigorously analyzed to guarantee that the sliding mode region is always reachable. Furthermore, the stability of the closed-loop system is established by using the Lyapunov method. Finally, the effectiveness of the proposed SMC approach is demonstrated through numerical simulations.