• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of a driving support system for preventing overtunrning accidents of farm tractor utilizing controlling chaos

Research Project

Project/Area Number 19H00959
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 41:Agricultural economics and rural sociology, agricultural engineering, and related fields
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

Kenshi Sakai  東京農工大学, (連合)農学研究科(研究院), 特任教授 (40192083)

Co-Investigator(Kenkyū-buntansha) 松井 正実  宇都宮大学, 農学部, 教授 (10603425)
田村 孝浩  宇都宮大学, 農学部, 准教授 (20341729)
青柳 悠也  信州大学, 先鋭領域融合研究群社会基盤研究所, 助教(特定雇用) (20882195)
風間 恵介  日本大学, 生産工学部, 助教 (30813422)
山下 恵  東京農工大学, (連合)農学研究科(研究院), 准教授 (70523596)
中島 正裕  東京農工大学, (連合)農学研究科(研究院), 教授 (80436675)
武田 純一  岩手大学, 農学部, 嘱託教授 (80133908)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥45,890,000 (Direct Cost: ¥35,300,000、Indirect Cost: ¥10,590,000)
Fiscal Year 2021: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2020: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2019: ¥22,880,000 (Direct Cost: ¥17,600,000、Indirect Cost: ¥5,280,000)
Keywords農作業事故 / 仮想テストドライブ / カオス / 非線形力学 / 共振ジャンプ / パワーホップ / ドライビングシミュレータ / 農作業安全 / トラクタ / 非線形現象 / ドライブシミュレータ / カオス制御
Outline of Research at the Start

農用トラクタの転倒・転落事故は農作業事故の最大の原因となっている.トラクタは自動車とは異なり車軸サスペンションが無く,前輪はセンターピポット懸架で,重心位置が高いため,道路走行時に自動車では問題とならない非線形過程が強く顕在化する.本研究では,1.統合型トラクタ非線形運動モデルの構築,2.トラクタ転倒・転落事故回避のための制御法の開発,3.リアルタイム危険度表示・記録システムの開発,4.トラクタ危険運転分析・評価法の開発,5.事故防止運転支援システムの実装,を行うことによって,
トラクタ運転における事故防止支援システムを実現する。

Outline of Final Research Achievements

Tractor overturning are the major cause of agricultural fatalities worldwide. In Japan, small tractors are used for farming in rough road surface, such as slippery rice paddies and steep slopes. Tractor overturning accidents are caused by steering instability due to bouncing and sliding. In this project, the mechanisms of resonance jumps and power hops observed in agricultural tractors were clarified. The mechanism of tractor overturning in inclined filed were elucidated. The instability of tractor-trailer systems was also identified. These results provide a theoretical basis for elucidating tractor overturning accident scenarios. Delayed feedback control and Lyapunov exponents were investigated as a possible control and evaluation methods. 6 DOF motion platform tractor driving simulator was developed combining with CarSim and MATLAB /Simulink. Based on a study of fatal accidents during agricultural work, a tractor rollover accident scenario was reproduced in a virtual test drive.

Academic Significance and Societal Importance of the Research Achievements

本研究で得られたトラクタ非線形動力学に関する知見は、トラクタ転倒・転落事故防止のための設計論、制御論、動的安定性試験法さらには道路設計基準策定の理論的根拠として活用できる。また、作物,作業機,圃場や道路環境,気象条件などの多様な組み合わせにより,作業者ごと・作業ごとに現場ごとにリスク要因が異なり一元的にリスク要因を列記できない。そのため、農作業のリスクマネージメントの観点から、多彩な事故シナリオを可視化・共有化が求められていた。本研究で提示した仮想テストドライブ手法やドライビングシミュレータは、安全研修教材や体験型の安全啓発に活用でき、トラクタ事故低減に向けて社会的意義が大きい。

Report

(5 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Comments on the Screening Results   Annual Research Report
  • Research Products

    (19 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (4 results) Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 5 results) Presentation (4 results) (of which Int'l Joint Research: 4 results) Book (1 results) Remarks (4 results)

  • [Int'l Joint Research] カリフォルニア大学デービス校(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] デリー大学(インド)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] カリフォルニア大学デービス校(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] デリー大学(インド)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Theoretical Verification of Driving Force Control System for the Suppression of the Dynamic Pitching Angle of Tractors2022

    • Author(s)
      AOYAGI Yuya、MATSUI Masami
    • Journal Title

      Engineering in Agriculture, Environment and Food

      Volume: 15 Issue: 1 Pages: 13-23

    • DOI

      10.37221/eaef.15.1_13

    • ISSN
      1881-8366
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Novel power hop model for an agricultural tractor with coupling bouncing, stick-slip, and free-play dynamics2021

    • Author(s)
      Masahisa Watanabe Kenshi Sakai
    • Journal Title

      Biosystems Engineering

      Volume: 204 Pages: 156-169

    • DOI

      10.1016/j.biosystemseng.2021.01.007

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identifying tractor overturning scenarios using a driving simulator with a motion system2021

    • Author(s)
      Watanabe Masahisa、Sakai Kenshi
    • Journal Title

      Biosystems Engineering

      Volume: 210 Pages: 261-270

    • DOI

      10.1016/j.biosystemseng.2021.08.010

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Numerical analysis of steering instability in an agricultural tractor induced by bouncing and sliding2020

    • Author(s)
      Masahisa Watanabe Kenshi Sakai
    • Journal Title

      Biosystems Engineering

      Volume: 192 Pages: 108-116

    • DOI

      10.1016/j.biosystemseng.2020.01.014

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 走行中のトラクタ横転倒に関する研究-旋回横転倒に関する考察-2020

    • Author(s)
      青柳悠也,松井正実,福島崇志
    • Journal Title

      農業食料学会誌

      Volume: 82(1) Pages: 39-46

    • NAID

      40022138428

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Impact dynamics model for a nonlinear bouncing tractor during inclined passage2019

    • Author(s)
      Masahisa Watanabe, Kenshi Sakai
    • Journal Title

      Biosystems Engineering

      Volume: 184 Pages: 84-94

    • DOI

      10.1016/j.biosystemseng.2019.03.013

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Nonlinear Dynamics of a Bouncing Tractor in a Tractor Driving Simulator2020

    • Author(s)
      Masahisa Watanabe, Kenshi Sakai
    • Organizer
      2020 ASABE Annual International Virtual Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical Analysis of Tractor Accidents using Driving Simulator for Autonomous Driving Tractor2019

    • Author(s)
      Masahisa Watanabe, Kenshi Sakai
    • Organizer
      Proceedings of 2019 5th International Conference on Mechatronics and Robotics Engineering
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of Tractor Bicycle Model with Ride Vibration2019

    • Author(s)
      Masahisa Watanabe, Kenshi Sakai
    • Organizer
      2019 ASABE Annual International Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation by Driving Simulation of Tractor Overturning Accidents Caused by Steering Instability2019

    • Author(s)
      Masahisa Watanabe, Kenshi Sakai
    • Organizer
      13th CIGR VI Technical Symposium, Sapporo, Japan, September 3-6, 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Book] 農業食料工学ハンドブック第7編土と耕うん2020

    • Author(s)
      酒井憲司(第7編編著)
    • Total Pages
      1092
    • Publisher
      コロナ社
    • ISBN
      9784339052671
    • Related Report
      2020 Annual Research Report
  • [Remarks] Mathematics to keep farmers on track

    • URL

      https://www.eurekalert.org/pub_releases/2020-05/tuoa-mtk051120.php

    • Related Report
      2020 Annual Research Report
  • [Remarks] 農用トラクタのジャンプ及び横滑りを予測するための非線形力学モデルを開発

    • URL

      https://www.eurekalert.org/pub_releases_ml/2020-05/tuoa-6051120.php

    • Related Report
      2020 Annual Research Report
  • [Remarks] 転倒事故多発、現場は農道 「数学」で防止に挑む

    • URL

      https://www.nikkei.com/article/DGXMZO61293230Y0A700C2X96000/

    • Related Report
      2020 Annual Research Report
  • [Remarks] Tractor overturn prediction using

    • URL

      https://www.eurekalert.org/pub_releases/2019-09/tuoa-top092519.php

    • Related Report
      2019 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi