Finite-Time Fuzzy Adaptive Constrained Tracking Control for Hypersonic Flight Vehicles With Singularity-Free Switching

This article proposes a fuzzy adaptive design solving the finite-time constrained tracking for hypersonic flight vehicles (HFVs). Actuator dynamics and asymmetric time-varying constraints are considered when this problem. The main features of proposed lie in 1) introducing novel piecewise but differentiable switching control law, with an appropriate thought to avoid singularity issues typical control; 2) handling actuator magnitude, bandwidth, rate constraints, thanks introduction auxiliary compensating system counteracting adverse effects caused by physical while guaranteeing closed-loop stability; 3) state tan-type barrier Lyapunov functions working both unconstrained scenarios. Comparative simulation results illustrate effectiveness strategy over existing methods HFVs terms convergence, smoothness, performance, satisfaction.