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JRM Vol.19 No.1 pp. 3-12
doi: 10.20965/jrm.2007.p0003
(2007)

Paper:

Self-Stabilizing Dynamics for a Quadruped Robot and Extension Toward Running on Rough Terrain

Zu Guang Zhang*, Hiroshi Kimura**,
and Yasuhiro Fukuoka***

*Dept. of Precision Engineering, Graduate School of Engineering, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

**Graduate School of Information Systems, Univ. of Electro-Communications, 1-5-1 Chofu-ga-oka, Chofu, Tokyo 182-8585, Japan

***Department of Intelligent Systems Engineering, Ibaraki University, 4-12-1 Nakanarusawa-cho, Hitachi-shi, Ibaraki 316-8511, Japan

Received:
July 15, 2005
Accepted:
September 29, 2006
Published:
February 20, 2007
Keywords:
self-stabilizing, quasi-passive running, delayed feedback control (DFC), rhythm generator, adaptation
Abstract

We designed and analyzed a control strategy that achieves autonomous adaptation and good energy efficiency in running by a quadruped robot. Our control strategy, inspired by previous studies on self-stabilizing dynamics, combines rhythm and torque generators with delayed feedback control (DFC) to achieve stable running and essential energy input. We developed an adaptation strategy to extend this control strategy that adjusts the robot’s leg touchdown angle based on the body’s pitch angle. Used together with our proposed control, it enables robust bounding over a shallow slope. Simulation results confirmed the feasibility of our proposal and its performance.

Cite this article as:
Z. Zhang, H. Kimura, and <. Fukuoka, “Self-Stabilizing Dynamics for a Quadruped Robot and Extension Toward Running on Rough Terrain,” J. Robot. Mechatron., Vol.19, No.1, pp. 3-12, 2007.
Data files:
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