The approach anthropomorphic robots experiencing a renewed interest in robotics intervention and service as bipeds robots can travel without special adaptation to a human environment. The robot Bip 2000, which will be presented at the Universal Exhibition in Hanover from May to September 2000, must be able to walk so anthropomorphic in the absence of barriers on a horizontal or slanted and ascend or descend stairs. Why a biped robot? The walking robots have compared to their counterparts wheeled several advantages: crossing barriers very easy way to lower ground, better adaptability. If robots multimode can cover large areas of non-manufacturing robotic exploration, maintenance, intervention, they are not suitable to the accompaniment of man in his personal or professional activities. That is why the world community of walking robots now devotes much of its research to so-called humanoid systems. The walking robot android P3 Honda is a realization of exceptional quality, but the laws of command are relatively simple. Continue reading
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Time-scaling control for an under actuated biped robot
This paper presents a control law for the tracking of a cyclic reference trajectory by an under actuated biped robot. The robot studied is a five-link planar robot. The degree of under actuation is one during the single support phase. The control law is defined in such a way that only the geometric evolution of the robot is controlled, not the temporal evolution. To achieve this objective, we consider a time-scaling control. For a given reference path, the temporal evolution during the geometric tracking is completely defined and can be analyzed through the study of the dynamic model. Continue reading