Robust Tracking Control of a Nonholonomic Mobile Robot in the Presence of Disturbances

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  • WADA Nobutaka
    Dept. of Mechanical System Engineering, Hiroshima University
  • SAEKI Masami
    Dept. of Mechanical System Engineering, Hiroshima University
  • CHEN Haijun
    Dept. of Mechanical System Engineering, Hiroshima University

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Abstract

In this paper, we consider the tracking control problem of a nonholonomic mobile robot in the presence of bounded disturbances. We propose a method for modifying the control law of Jiang et al. (1997) so that the resulting control law guarantees global stability and the tracking error converges to a neighborhood about zero that can be made arbitrary small in the presence of disturbances. Further, we show that the tracking error converge to zero in the absence of disturbances. A numerical example is provided to show effectiveness of the method.

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