Terrain-adaptive control with small landing impact force for biped vehicle

Kenji Hashimoto*, Akihiro Hayashi, Terumasa Sawato, Yuki Yoshimura, Teppei Asano, Kentaro Hattori, Yusuke Sugahara, Hun Ok Lim, Atsuo Takanishi

*この研究の対応する著者

研究成果: Conference contribution

8 被引用数 (Scopus)

抄録

Many researchers have studied on walking stability controls for biped robots. Most of them are highly accurate acceleration controls based on the mechanics model of the robot. However, the control algorithms are difficult to be applied to human-carrying biped robots due to modeling errors. In the previous report, we proposed the landing pattern modification method, but it had a problem that a foot landing impact increased when a walking speed became fast. So, we propose a new terrain-adaptive control that can reduce a landing-impact force. To increase a concave terrain adaptation, we set a target landing position beneath a reference level. To reduce the landing-impact force, we change the position gain control value to a small value at a swing phase. Moreover, we set landing-foot speed at zero after detecting a foot-landing by the force sensor mounted on a foot. To follow uneven terrain, a virtual spring is installed to the vertical direction after detecting a foot-landing on a ground, and a virtual compliance control is applied to the roll and pitch axes. In a stable walk while carrying a 65 kg human on uneven terrain, the new control method decreased the landing-impact force than the previous terrain-adaptive control.

本文言語English
ホスト出版物のタイトル2009 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2009
ページ2922-2927
ページ数6
DOI
出版ステータスPublished - 2009 12 11
イベント2009 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2009 - St. Louis, MO, United States
継続期間: 2009 10 112009 10 15

出版物シリーズ

名前2009 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2009

Conference

Conference2009 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2009
国/地域United States
CitySt. Louis, MO
Period09/10/1109/10/15

ASJC Scopus subject areas

  • 人工知能
  • コンピュータ ビジョンおよびパターン認識
  • 人間とコンピュータの相互作用
  • 制御およびシステム工学

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