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Lower Extremity Exoskeleton for Stair Climbing Augmentation

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a light-weight lower extremity exoskeleton and its associated control method to augment the locomotion for climbing stairs. A compact slider crank mechanism is designed for the knee joint to offer the required torque. A spring based quasi-passive hip joint is adopted to compensate gravity force of lifting leg. A hybrid assistive control strategy is proposed to ensure the requirement and coordination of different gait phases for the exoskeleton. In standing phase, a direct gravity balancing method is used to support the body and payload. In swing phase, a force tracking control method is utilized to enhance leg mobility. Stair climbing tests show that the gravity compensation method and force-tracking controller enhance the stair climbing mobility, and demonstrate the feasibility of the designed exoskeleton and the proposed hybrid control strategy.

Original languageEnglish
Title of host publicationICARM 2018 - 2018 3rd International Conference on Advanced Robotics and Mechatronics
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages762-768
Number of pages7
ISBN (Electronic)9781538670668
DOIs
StatePublished - 11 Jan 2019
Event3rd IEEE International Conference on Advanced Robotics and Mechatronics, ICARM 2018 - Singapore, Singapore
Duration: 18 Jul 201820 Jul 2018

Publication series

NameICARM 2018 - 2018 3rd International Conference on Advanced Robotics and Mechatronics

Conference

Conference3rd IEEE International Conference on Advanced Robotics and Mechatronics, ICARM 2018
Country/TerritorySingapore
CitySingapore
Period18/07/1820/07/18

Keywords

  • Exoskeleton
  • hybrid control
  • stair climbing

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