Abstract
In this paper, the robust stabilization problem is addressed for a class of dynamic feedback uncertain nonholonomic mobile robots with input saturation. Firstly, a continuous, time varying, saturated controller is presented for the kinematic system of the robots. Secondly, for the dynamic feedback system, a special derivable, saturated kinematic controller with slope restrictions is selected as a virtual control law that can be tracked by the real generalized velocity in a finite time, furthermore, the dynamic input signals are continuous and saturated at any time. The systematic strategy combines the theory of finite-time stability with the virtual-controller-tracked method. Finally, the simulation results show the effectiveness of the proposed controller design approach.
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Recommended by Associate Editor Wonjong Kim under the direction of Editor Zengqi Sun.
This work was supported by the Natural Science Foundation of China (61304004), the China Postdoctoral Science Foundation funded project (2013M531263), and the Jiangsu Planned Projects for Postdoctoral Research Funds (1302140C).
Hua Chen received his B.S. degree from the Department of Mathematics at Yangzhou University, China, an M.S. degree from the Department of Management Sciences and Engineering at Nanjing University, China, and a Ph.D. degree from the Department of Control Science and Engineering at University of Shanghai for Science and Technology, China, in 2001, 2009, and 2012, respectively. His main research interests include saturated control for nonlinear systems, motion control of nonholonomic mobile robots, analysis and control of fractional-order systems.
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Chen, H. Robust stabilization for a class of dynamic feedback uncertain nonholonomic mobile robots with input saturation. Int. J. Control Autom. Syst. 12, 1216–1224 (2014). https://doi.org/10.1007/s12555-013-0492-z
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DOI: https://doi.org/10.1007/s12555-013-0492-z