JRM Vol.35 No.5 pp. 1290-1299
doi: 10.20965/jrm.2023.p1290


Decentralized Control Mechanism Underlying Morphology-Dependent Quadruped Turning

Hayato Amaike*,**, Akira Fukuhara* ORCID Icon, Takeshi Kano* ORCID Icon, and Akio Ishiguro* ORCID Icon

*Research Institute of Electrical Communication, Tohoku University
2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan

**Graduate School of Biomedical Engineering, Tohoku University
6-6 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan

January 10, 2023
June 24, 2023
October 20, 2023
quadruped robot, turning behavior, load distribution

Quadruped mammals can control the movement of their center of gravity when turning by skillfully utilizing their bodies to achieve adaptive turning movements. Interestingly, the low-speed turning behavior also changes depending on the animal’s morphology. Therefore, this study aims to understand the control algorithm of low-speed turning, which can reproduce the turning behavior according to the location of the center of gravity. Specifically, we constructed a control algorithm based on the knowledge that animals steer with the leg closest to the center of gravity and verified it with a quadruped robot whose center of gravity could be adjusted. Consequently, the behavior observed in animals was successfully reproduced, with a stable and large turning angle per time when the proposed control algorithm was used.

Quadruped robot developed for turning experiments

Quadruped robot developed for turning experiments

Cite this article as:
H. Amaike, A. Fukuhara, T. Kano, and A. Ishiguro, “Decentralized Control Mechanism Underlying Morphology-Dependent Quadruped Turning,” J. Robot. Mechatron., Vol.35 No.5, pp. 1290-1299, 2023.
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Last updated on Jul. 12, 2024