Backward Ladder Climbing Locomotion of Humanoid Robot with Gain Overriding Method on Position Control

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We studied ladder climbing locomotion with the humanoid robot, DRC-HUBO, under the constraints suggested by DARPA. Considering the hardware constraints of the robot platform, we planned for the robot to climb backward with four limbs moving separately. Task-priority whole-body inverse kinematics was used to generate and track the motion while maintaining COM inside the support polygon. As ladder climbing is a multicontact motion that generates interaction and internal forces, we resolved these issues using a gain overriding method applied to the position control of the motor controllers. This paper also provides various vision methods and posture modification strategies for the restricted conditions of the challenge. We ultimately verified our work in the DRC trials by getting a full score on the ladder task
Publisher
WILEY-BLACKWELL
Issue Date
2016-08
Language
English
Article Type
Article
Citation

JOURNAL OF FIELD ROBOTICS, v.33, no.5, pp.687 - 705

ISSN
1556-4959
DOI
10.1002/rob.21598
URI
http://hdl.handle.net/10203/212553
Appears in Collection
ME-Journal Papers(저널논문)
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