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Analysis and modeling of slip for a five-wheeled mobile robot (WMR) in an uneven terrain

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3 Author(s)
Ozoemena A. Ani ; College of Mechanical and Electrical Engineering, Harbin Engineering University, 150001 Harbin, P.R. China ; He Xu ; Gang Zhao

Effective traction and motion control of autonomous wheel mobile robots (WMR) require a precise knowledge of the relationship between three major classes of variables including those of: the vehicle (robot), the terrain and the interaction at the interface. This paper presents a model and analysis of the relationship between wheel slip (s) and rotation angle (θ). Unconstrained nonlinear optimization of slip with respect to rotation angle is performed in MATLAB using Newton-Raphson iterative method. We also propose a method of wheel slip estimation for a five wheeled mobile robot through comparing the odometric measurements of the powered wheels with that of a fifth non-powered wheel.

Published in:

2011 IEEE International Conference on Mechatronics and Automation

Date of Conference:

7-10 Aug. 2011