An Approach for Combining Transparency and Motion Assistance of a Lower Body Exoskeleton

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Abstract

In this paper, an approach for gait assistance with a lower body exoskeleton is described. Two concepts, transparency and motion assistance, are combined. The transparent mode, where the system is following the user’s free motion with a minimum of perceived interaction forces, is realized by exploiting the gear backlash of the actuation units. During walking a superimposed assistance mode applies an additional torque guiding the legs to their estimated future position. The concept of adaptive oscillators is utilized to learn the quasi-periodic signals typical for locomotion. First experiments showed promising results.
Original languageEnglish
Title of host publicationAdvances in Service and Industrial Robotics, RAAD 2023
EditorsTadej Petrič, Aleš Ude, Leon Žlajpah
Place of PublicationSwitzerland
PublisherSpringer Nature Switzerland AG
Pages237-244
Number of pages8
Volume135
ISBN (Print)978-3-031-32605-9
DOIs
Publication statusPublished - 2023

Publication series

NameMechanisms and Machine Science
Volume135 MMS
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

Fields of science

  • 203015 Mechatronics
  • 203022 Technical mechanics
  • 202 Electrical Engineering, Electronics, Information Engineering
  • 202035 Robotics
  • 203013 Mechanical engineering

JKU Focus areas

  • Digital Transformation

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