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Constructive understanding of the gait adaptation mechanism through the cerebellum in the cat locomotion using a quadruped robot

Research Project

Project/Area Number 19K12169
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 61050:Intelligent robotics-related
Research InstitutionKyoto Institute of Technology

Principal Investigator

Kimura Hiroshi  京都工芸繊維大学, その他部局等, 教授 (40192562)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordsinterlimb coordination / split-belt adaptation / sensorimotor function / spinal cat / hip extension / leg unloading / gait transition / constructive model / spinal cat model / rhythm generator / gait generation / thalamic cat model / early adaptation / late adaptation / CPG & phase transition / phasic stretch response / crossed ext. response / learning in cerebellum / long-term depression / decerebrate cat model / quadruped robot / 四足歩容自律適応 / Split-belt歩行 / ネコの小脳適応モデル / 四足ロボット
Outline of Research at the Start

大脳皮質との接続を切断したネコにベルトコンベア上を歩かせたとき,例えば左前脚のベルトの速度のみを速くすると小脳レベルでの歩行パターン(歩容)適応が行われる.本研究ではこの歩容適応のメカニズムを,数理モデルではなく,脚床反力を中心とした歩容安定化と姿勢安定化の観点からの身体モデルを用いて説明し,四足ロボット実験によりその妥当性を検証する.身体モデルとは,実際の物理量を明示的に扱い,小脳レベルでの歩容適応が「なぜ・どのようにして」生じるかを物理現象として理解するために,具体的な要素間の関係を記述したものである.

Outline of Final Research Achievements

In the split-belt locomotion of a decerebrate (thalamic) cat, the adaptation at the level of the spinal cord and the cerebellum is observed. Each adaptation is named "early" and "late." We proposed the "spinal cat model" based on sensorimotor functions using hip extension and leg unloading for the transition from the stance to swing phase of a leg. By the "thalamic cat model" with the additional step distance learning function, we explained the mechanism in such gait adaptation in view of the posture stabilization. We also employed the "crossed extension reflex", where the swing phase duration of a leg contralateral to the leg with hip extension by the fast belt is shortened. By applying this model to a quadruped robot, we realized that the relative phase difference on the touch down between legs became 0.5 in the normal split-belt, and that the gait of 1:2 step cycles on slow and fast belts was induced in the slow split-belt. Such gaits resembled those observed in spinal cats.

Academic Significance and Societal Importance of the Research Achievements

4脚ロボットの自律歩容適応・遷移において脚間協調は重要である.本研究は最終的に,従来の上位指令による歩容切替ではなく感覚運動機能のみによる自律分散的な歩容適応・遷移を目指している.本研究は左右脚間協調に焦点を絞って,そのメカニズムを考察した.結果として,歩容適応では胴体姿勢安定化のために着地タイミング決定が重要であることが分かった.さらに,歩容遷移とは両脚支持期において胴体を含む系全体の力学的安定性を保ちながらどちらの脚が先に離地するかという離地タイミング決定問題に帰着できることが明らかになった.このような知見は,4脚ロボットの感覚情報に基づく自律制御における複雑度の低減に貢献する.

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (18 results)

All 2024 2023 2022 2021 2020 Other

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (14 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results) Remarks (1 results)

  • [Journal Article] リズムと歩容を自律生成する4脚ロボット制御器-ネコ・後2 脚歩行-走行遷移のシミュレーション-2024

    • Author(s)
      木村 浩,モフロァ クリストフ,古殿 幸大
    • Journal Title

      日本ロボット学会誌

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Evaluation of Gait Generation in Quadrupedal Legged Locomotion with Changing Anterior/Posterior Extreme Positions2022

    • Author(s)
      Kodai Kodono and Hiroshi Kimura
    • Journal Title

      Biomimetic and Biohybrid Systems, 11th Int. Conf., Living Machines

      Volume: 2022 Pages: 157-168

    • DOI

      10.1007/978-3-031-20470-8_17

    • ISBN
      9783031204692, 9783031204708
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Visual navigation system for dynamic walking of a quadruped on treadmill2020

    • Author(s)
      KODONO Kodai、KIMURA Hiroshi
    • Journal Title

      Transactions of the JSME (in Japanese)

      Volume: 86 Issue: 882 Pages: 19-00316-19-00316

    • DOI

      10.1299/transjsme.19-00316

    • NAID

      130007801865

    • ISSN
      2187-9761
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 4 脚ロコモーションのリズムと歩容の生成原理2024

    • Author(s)
      木村 浩
    • Organizer
      第36回自律分散システム・シンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 身体と環境との相互作用を通した左右脚間協調モデルの提案と4 脚ロボットによる検証2024

    • Author(s)
      古殿 幸大
    • Organizer
      第36回自律分散システム・シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Gait transition and adaptation using the spinal cat model2023

    • Author(s)
      Kodai Kodono and Hiroshi Kimura
    • Organizer
      Int. Symp. on Adaptive Motion of Animals and Machines
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ネコの歩容遷 移・適応の感覚-運動レベルでの構成論的理解 -脊髄モデルの検証-2023

    • Author(s)
      古殿幸大,木村浩
    • Organizer
      自律分散システム・シンポジウム
    • Related Report
      2022 Research-status Report
  • [Presentation] 四脚ロボットを用いた視床ネコの split-belt 適応歩行の構成論的理解 -小脳レベルでの適応過程を考慮した視床ネコモデルの検証-2022

    • Author(s)
      古殿幸大,木村浩
    • Organizer
      日本ロボット学会学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Evaluation of a constructive spinal cat model for early adaptation in split-belt locomotion of thalamic cats utilizing a quadruped robot2021

    • Author(s)
      Kodai Kodono
    • Organizer
      The 10th International Conference on Biomimetic and Biohybrid Systems
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] ノミナルな着地・離地位置の変化に基づいた四脚基本対称歩容生成の構成論的理解2021

    • Author(s)
      古殿幸大
    • Organizer
      第34回自律分散システム・シンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] 四脚ロボットを用いた除脳ネコのsplit-belt歩行における歩容適応モデルの提案2020

    • Author(s)
      古殿幸大,木村浩
    • Organizer
      2020ロボティクスシンポジア
    • Related Report
      2020 Research-status Report
  • [Presentation] 下肢に直動バネを有する四脚走行ロボットの開発2020

    • Author(s)
      森川慎一朗,木村浩
    • Organizer
      JSMEロボティクスメカトロニクス講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 四足ロボットを用いた脊髄ネコモデルの脚負荷遷移に着目した挙動解析2020

    • Author(s)
      古殿幸大,木村浩
    • Organizer
      JSMEロボティクスメカトロニクス講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 四脚走行ロボットの視覚適応シミュレーション2020

    • Author(s)
      菊川 響,岡田 奈津希,木村 浩
    • Organizer
      JSMEロボティクスメカトロニクス講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 下肢の直動バネを利用した四脚走行ロボットのpronk・trot歩容の実現2020

    • Author(s)
      森川慎一朗,木村浩
    • Organizer
      SICEシステムインテグレーション講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Split-belt Adaptation Model of a Decerebrate Cat Using a Quadruped Robot with Learning2020

    • Author(s)
      Kodai Kodono, Hiroshi Kimura
    • Organizer
      9th International Conference on Biomimetic and Biohybrid Systems
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Split-belt Adaptation Model of a Decerebrate Cat Using a Quadruped Robot with Learning.2020

    • Author(s)
      Kodai Kodono, Hiroshi Kimura
    • Organizer
      Proc. of 9th International Conference on Biomimetic and Biohybrid Systems
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] ロコモーション・パターン創発研究の現状と今後の展望

    • URL

      http://www.robotlocomotion.kit.ac.jp/RSJ-J-2023.html

    • Related Report
      2022 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2025-01-30  

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