Design of muscle reflex control for human upright standing push-recovery based on series elastic actuator

Yuyang Cao, Kui Xiang, Biwei Tang, Zhaojie Ju, Muye Pang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

Ankle joint muscle reflex control plays an important role in the human bipedal posture. With the neuromuscular control mechanism and muscle-tendon biomechanical dynamic properties, our joints exhibit excellent performance in external environment physical interaction. Researching and understanding the mechanism of muscle reflex not only helps to reveal human movement control rules, but also provides a useful tool for robotic system design. In this paper, an ankle joint muscle reflex control strategy for human upright standing push-recovery is proposed. In order to focus attention on muscle reflexes and exclude other control mechanisms from the central nervous system (CNS) as much as possible, only ankle joint strategy without foot tilting is evoked by a limited external disturbance. A proportional derivative-like (PD-like) muscle reflex control algorithm is presented to understand the action mechanism for human upright standing push-recovery. A series elastic actuator (SEA) based mechanical ankle joint is designed as a platform for testing activities. The experimental results show that the proposed reflex control method can help subjects maintain balance, without stepping, while receiving external disturbances. With the unique control mechanism, the ankle joint behaves like a spring-damping system. And, under such a simple and effective control strategy, it is practical to realize human upright standing push-recovery.
Original languageEnglish
Title of host publication2019 IEEE 9th Annual International Conference on CYBER Technology in Automation, Control, and Intelligent Systems (CYBER)
PublisherIEEE
Pages192-196
ISBN (Electronic)978-1-7281-0770-7
ISBN (Print)978-1-7281-0771-4
DOIs
Publication statusPublished - 16 Apr 2020
Event9th Annual International Conference on CYBER Technology in Automation, Control, and Intelligent Systems - Suzhou, China
Duration: 29 Jul 20191 Aug 2019
https://ieeexplore.ieee.org/servlet/opac?punumber=9051568

Publication series

NameIEEE CYBER Proceedings Series
PublisherIEEE
ISSN (Print)2379-7711

Conference

Conference9th Annual International Conference on CYBER Technology in Automation, Control, and Intelligent Systems
Abbreviated titleCYBER
Country/TerritoryChina
CitySuzhou
Period29/07/191/08/19
Internet address

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