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Article Dans Une Revue The International Journal of Robotics Research Année : 2004

Stability and traction optimization of a wheel-legged robot

Résumé

Actively articulated locomotion systems such as hybrid wheel-legged vehicles are a possible way to enhance the locomotion performance of an autonomous mobile robot. In this paper, we address the control of the wheel-legged robot Hylos traveling on irregular sloping terrain. The redundancy of such a system is used to optimize both the balance of traction forces and the tipover stability. The general formulation of this optimization problem is presented, and a suboptimal but computationally efficient solution is proposed. Then, an algorithm to control the robot posture, based on a velocity model, is described. Finally, this algorithm is validated through simulations and experiments that show the capabilities of such a redundantly actuated vehicle to enhance its own safety and autonomy in critical environments.
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Dates et versions

hal-03135896 , version 1 (29-03-2021)

Identifiants

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Christophe Grand, Faiz Ben Amar, Philippe Bidaud, Frédéric Plumet. Stability and traction optimization of a wheel-legged robot. The International Journal of Robotics Research, 2004, 23 (10-11), pp.1041-1058. ⟨10.1177/0278364904047616⟩. ⟨hal-03135896⟩
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