An experience on stable control of mobile robots

SECCHI, HUMBERTO, CARELLI, RICARDO, MUT, VICENTE

LATIN AMERICAN APPLIED RESEARCH

Editorial de la Universidad Nacional del Sur

Lugar: Bahía Blanca, Argentina; Año: 2003 vol. 33 p. 379 - 383

0327-0793

This paper is based on a previous work. In this paper mobile robot control laws, including obstacle avoidance based on distance sensorial information are developed. The mobile robot is assumed to evolve in a semi-structured environment. The control systems are based on the use of the extended impedance concept, in which the relationship between fictitious forces and motion error is regulated. The fictitious forces are generated from the information provided by sensors on the distance from the obstacle to the robot. The control algorithms also prevent from the potential problem of control command saturation. The paper includes the stability analysis of the developed control systems, using positive definite potential functions.