Journal
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
Volume 28, Issue 5, Pages 1789-1807Publisher
WILEY
DOI: 10.1002/rnc.3985
Keywords
adaptive control; motor characteristics; trajectory tracking control; wheeled mobile robot
Funding
- Prospective Joint Research Project [BY2016030-23]
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This paper proposes a new adaptive trajectory tracking control scheme of the wheeled mobile robot without longitudinal velocity measurement. First, based on a kinematic controller, we obtain a new tracking error equation, which is suitable to develop an adaptive controller. Then, we develop a new adaptive trajectory tracking controller, which does not need any accurate values of the wheeled mobile robot parameters, including the driving motor parameters. Moreover, as the longitudinal velocity measurement is still difficult, this controller is developed without longitudinal velocity measurement. In addition, this new adaptive controller introduces a method to improve the control performance. The stability of the closed-loop system is presented using the direct Lyapunov method. Finally, numerous simulations verify the effectiveness of the new controller.
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