Adaptive tracking controller design of nonlinear systems with time delays and unknown dead-zone input

Chang Chun Hua, Qing Guo Wang, Xin Ping Guan

Research output: Contribution to journalArticlepeer-review

154 Citations (Scopus)

Abstract

This paper focuses on the tracking control problem for a class of nonlinear system with time delays and dead-zone input. The nonsymmetric dead-zone input case is considered without the knowledge of the dead zone parameters. The time delay uncertainties are bounded by a nonlinear function with unknown coefficients. By constructing a novel Lyapunov functional, we design a simple and smooth adaptive state feedback controller. It is shown that the solution of the resulting closed-loop error system converges to an adjustable region exponentially. Finally, numerical examples are included to show the effectiveness of the theoretical results.

Original languageEnglish
Pages (from-to)1753-1759
Number of pages7
JournalIEEE Transactions on Automatic Control
Volume53
Issue number7
DOIs
Publication statusPublished - 2008
Externally publishedYes

Keywords

  • Adaptive control
  • Dead-zone input
  • Lyapunov functional
  • Time-delay systems

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering

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