Abstract
In this study, the event-triggered asymptotic tracking control problem is considered for a class of nonholonomic systems in chained form for the time-varying reference input. First, to eliminate the ripple phenomenon caused by the imprecise compensation of the time-varying reference input, a novel time-varying event-triggered piecewise continuous control law and a triggering mechanism with a time-varying triggering function are developed. Second, an explicit integral input-to-state stable Lyapunov function is constructed for the time-varying closed-loop system regarding the sampling error as the external input. The origin of the closed-loop system is shown to be uniformly globally asymptotically stable for any global exponential decaying threshold signals, which in turn rules out the Zeno behavior. Moreover, infinitely fast sampling can be avoided by appropriately tuning the exponential convergence rate of the threshold signal. A numerical simulation example is provided to illustrate the proposed control approach.
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This work was supported by National Natural Science Foundation of China (Grant Nos. 62173092, 62173149).
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Xu, L., Su, Y. & Cai, H. Event-triggered tracking control for a class of nonholonomic systems in chained form. Sci. China Inf. Sci. 66, 172201 (2023). https://doi.org/10.1007/s11432-022-3648-8
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DOI: https://doi.org/10.1007/s11432-022-3648-8