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<p>This study proposes an adaptive critic network-based event-triggered control (ETC) scheme for hypersonic flight vehicles with input constraints. First, a nonquadratic performance index is formulated for input-constrained systems to overcome the limitations of traditional quadratic performance indexes. Next, an event-triggered condition is designed to trigger controller updates based on a fixed threshold, communicating only when necessary, effectively saving computational and communication resources. Subsequently, a critic-only network is implemented to approximate solutions to the Hamilton-Jacobi-Bellman equation (HJBE). Thereafter, system stability is analyzed using the Lyapunov method, demonstrating that the ETC scheme not only guarantees asymptotic stability of the closed-loop system but also avoids Zeno behavior. Lastly, a simulation example confirms the efficacy of the proposed ETC scheme.</p>

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Event-triggered control for hypersonic flight vehicles with input constraints via adaptive critic network

  • 期刊论文

  • 发表日期：

    2026年4月27日

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  • Lei Shi,
  • Xuesong Wang,
  • C. L. Philip Chen,
  • Yuhu Cheng

摘要

This study proposes an adaptive critic network-based event-triggered control (ETC) scheme for hypersonic flight vehicles with input constraints. First, a nonquadratic performance index is formulated for input-constrained systems to overcome the limitations of traditional quadratic performance indexes. Next, an event-triggered condition is designed to trigger controller updates based on a fixed threshold, communicating only when necessary, effectively saving computational and communication resources. Subsequently, a critic-only network is implemented to approximate solutions to the Hamilton-Jacobi-Bellman equation (HJBE). Thereafter, system stability is analyzed using the Lyapunov method, demonstrating that the ETC scheme not only guarantees asymptotic stability of the closed-loop system but also avoids Zeno behavior. Lastly, a simulation example confirms the efficacy of the proposed ETC scheme.