Fuzzy Adaptive Event-Triggered Control for a Class of Uncertain Nonaffine Nonlinear Systems With Full State Constraints

Adaptive event‐triggered output feedback control for a class of p‐normal nonlinear systems with sensor failure

“…Remark When the systems subject to unknown growth rate as well as uncontrollable and unobservable linearizations, the event‐triggered strategies in References 15‐17 are infeasible to obtain the boundedness of the closed‐loop systems. Therefore, in order to achieve the global adaptive output feedback control of the considered systems, a new adaptive event‐triggered control mechanism is designed in this article.…”

“…For non‐strict‐feedback nonlinear systems, the event‐triggered adaptive fuzzy control problem was investigated in Reference 16. The event‐triggered fuzzy adaptive tracking control problem was concerned for nonaffine nonlinear systems with full state constraints 17 . The event‐triggered control problem for a class of switched nonlinear strict‐feedback systems subject to asymmetric input saturation was derived in Reference 18.…”

“…Thereafter, by the skillful design of dynamic gain mechanism, a novel adaptive event‐triggered controller is constructed for a class of p ‐normal nonlinear systems with sensor failures and unknown growth rate. Compared with the relevant works, the main contributions of this article can be summarized as:Due to the existence of time‐varying sensor failure, the existing event‐triggered control results 15‐19 are invalid to achieve the global adaptive control in the presence of uncontrollable and unobservable linearizations. By utilizing a dynamic gain technique, a novel adaptive event‐triggered controller is designed to solve this problem. Since the designed event‐triggered controller is not differentiable everywhere, the existing methods of excluding Zeno phenomenon are infeasible.…”

“…Due to the existence of time‐varying sensor failure, the existing event‐triggered control results 15‐19 are invalid to achieve the global adaptive control in the presence of uncontrollable and unobservable linearizations. By utilizing a dynamic gain technique, a novel adaptive event‐triggered controller is designed to solve this problem.…”

Robust adaptive fuzzy control for a class of uncertain nonaffine nonlinear systems with unknown control directions

“…In recent years, various adaptive approaches have been proposed for controlling unknown nonaffine nonlinear systems, in which the control input does not appears linearly in the system state equation (i.e. x · = f ( x , u ) ) (Doudou and Khaber, 2012, 2019; Esfandiari et al, 2015; Jia et al, 2019, 2020; Molavi et al, 2017; Shi et al, 2017; Sun and Pan, 2017; Wu et al, 2016, 2020; Zhang et al, 2019, Zhao and Gao, 2015; Zhou et al, 2015). In Jia et al (2019, 2020), backstepping and dynamic surface control (DSC) methods are used to developed the controller, respectively.…”