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JRM Vol.18 No.1 pp. 51-58
doi: 10.20965/jrm.2006.p0051
(2006)

Paper:

Omnidirectional Static Walking of a Quadruped Robot on a Slope

Lei Zhang*, Shugen Ma*,**, Yoshinori Honda***,
and Kousuke Inoue*

*Department of Systems Engineering, Faculty of Engineering, Ibaraki University, 4-12-1 Nakanarusawa-Cho, Hitachi-Shi 316-8511, Japan

**COE Research Institute, Ritsumeikan University, 1-1-1 Noji Higashi, Kusatsu-Shi 525-8577, Japan

***Computron Corporation, 1-11-2 Tonnya-Cho, Maebashi-Shi 371-0855, Japan

Received:
May 17, 2005
Accepted:
July 25, 2005
Published:
February 20, 2006
Keywords:
quadruped robot, omnidirectional walking, body posture, successive gait transition, walking on a slope
Abstract

We propose successive gait transition with arbitrary body posture to enable a quadruped robot to walk statically and omnidirectionally on a slope. Body posture is determined by rotation around 3 axes, roll, pitch, and yaw. Successive gait transition with a minimum number of steps on a slope is realizable using common foot position before and after gait transition. The time required to transit between gaits is reduced by carefully designing foot position in crawling and rotating while limiting foot reachable region on a slope. The robot thus walks into any direction with arbitrary body postures. In this study, we also verify a tradeoff relation between motion speed and body posture. Computer simulation and experiments verified the feasibility of our proposed method and the stability of gait transition based on static stability margin.

Cite this article as:
Lei Zhang, Shugen Ma, Yoshinori Honda, and
and Kousuke Inoue, “Omnidirectional Static Walking of a Quadruped Robot on a Slope,” J. Robot. Mechatron., Vol.18, No.1, pp. 51-58, 2006.
Data files:
References
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Last updated on Mar. 05, 2021