Adaptive Fuzzy Output-Feedback Control for Switched Nonlinear Systems with Input Saturations

This paper investigates the adaptive command filtered output-feedback control for switched nonlinear systems with input saturations. The influence of saturation nonlinearity on the system is surmounted by introducing the smooth nonlinear functions approximating saturation function models. Furthermore, the fuzzy logic systems (FLSs) are used to approximate the unknown nonlinear functions and the fuzzy switched state observer is constructed to estimate the unmeasured state. The adaptive command filtered output-feedback control scheme is constructed by combining the adaptive backstepping control with the command filtered control. Finally, the simulation results are provided to show the effectiveness of the proposed control scheme.