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Scientific Articles
May 28, 2009

A powered knee exoskeleton for gait rehabilitation

Beyl, Pieter ; Cherelle, Pierre ; Versluys, Rino ; Vanderniepen, Innes ; Lefeber, Dirk

Proceedings of the 8th National Congress on Theoretical and Applied Mechanics

Research in robotic gait rehabilitation still faces many challenges regarding ankle assistance, body weight support and human-robot interaction.

This paper reports on the development, focusing on these challenges, of a gait rehabilitation exoskeleton powered by pleated pneumatic artificial muscles. The first prototype is intended as a platform for the evaluation of design and control concepts.

The mechanical design procedure is explained with the emphasis on optimization. A proxy-based sliding mode control approach is proposed and evaluated by means of simulation.

Simulation results indicate good tracking performance and safe system behavior, encouraging experimental validation on the prototype.

Human Robot Interaction
Sliding mode control
Patient rehabilitation

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