Publications:An Autonomous Control System for a Prosthetic Foot Ankle

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Title An Autonomous Control System for a Prosthetic Foot Ankle
Author Wolfgang Svensson and Ulf Holmberg
Year 2006
PublicationType Conference Paper
Journal
HostPublication 4th IFAC Symposium on Mechatronic Systems (2006)
Conference 4th IFAC Symposium on Mechatronic Systems, 12 - 14 september, 2006, Ruprecht-Karls-University, Germany
DOI
Diva url http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:239016
Abstract When walking on inclined ground the biological foot adjusts the ankle angle accordingly. Prosthetic foot users have often a limited range of motion in their ankle which makes walking on hills uncomfortable. This paper describes a system which can autonomously correct the ankle angle to the inclination. The ground angle is estimated using an accelerometer. The angle foot blade to heel is then adjusted with a DC-motor. Since the controller only activates the motor when the foot is lifted and thus not loaded, a small powered system can be used.