Event-Trigger-Based Global Sliding Mode Control for a Hypersonic Morphing Vehicle

This paper proposes an event-trigger-based global sliding mode control technique for the hypersonic morphing vehicle. Firstly, the control-oriented model of the hypersonic morphing vehicle can be established. Secondly, a global sliding mode control method is adopted to design a robust controller for the hypersonic morphing vehicle. Secondly, considering the high frequency of actuator deflections leading to serious stress on the communication system, unnecessary energy consumption, and potential actuator lifetime loss, a global sliding-mode controller combined with the event-trigger tactic is developed to effectively reduce the control frequency with little performance loss. The hypersonic morphing vehicle with applying the proposed controller is proven to be stable by introducing the Lyapunov analysis. Mathematical simulations are arranged to interpret the detailed tracking performance.