2013 | OriginalPaper | Buchkapitel
Bioinspired Adaptive Control for Artificial Muscles
verfasst von : Emma D. Wilson, Tareq Assaf, Martin J. Pearson, Jonathan M. Rossiter, Sean R. Anderson, John Porrill
Erschienen in: Biomimetic and Biohybrid Systems
Verlag: Springer Berlin Heidelberg
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The new field of soft robotics offers the prospect of replacing existing hard actuator technologies by artificial muscles more suited to human-centred robotics. It is natural to apply biomimetic control strategies to the control of these actuators. In this paper a cerebellar-inspired controller is successfully applied to the real-time control of a dielectric electroactive actuator. To analyse the performance of the algorithm in detail we identified a time-varying plant model which accurately described actuator properties over the length of the experiment. Using synthetic data generated by this model we compared the performance of the cerebellar-inspired controller with that of a conventional adaptive control scheme (filtered-x LMS). Both the cerebellar and conventional algorithms were able to control displacement for short periods, however the cerebellar-inspired algorithm significantly outperformed the conventional algorithm over longer duration runs where actuator characteristics changed significantly. This work confirms the promise of biomimetic control strategies for soft-robotics applications.