An approach for combining transparency and motion assistance of a lower body exoskeleton

Fuente: arXiv
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Main Authors: Ziegler, Jakob, Rameder, Bernhard, Gattringer, Hubert, Mueller, Andreas
Format: Preprint
Published: 2025
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author Ziegler, Jakob
Rameder, Bernhard
Gattringer, Hubert
Mueller, Andreas
author_facet Ziegler, Jakob
Rameder, Bernhard
Gattringer, Hubert
Mueller, Andreas
contents 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.
format Preprint
id arxiv_https___arxiv_org_abs_2510_25335
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle An approach for combining transparency and motion assistance of a lower body exoskeleton
Ziegler, Jakob
Rameder, Bernhard
Gattringer, Hubert
Mueller, Andreas
Robotics
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.
title An approach for combining transparency and motion assistance of a lower body exoskeleton
topic Robotics
url https://arxiv.org/abs/2510.25335