Improvement of road condition evaluation taking advantage of angular velocity vehicle response measurement and movie records
| Project/Area Number |
26289141
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Nagayama Tomonori 東京大学, 工学(系)研究科(研究院), 准教授 (80451798)
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| Co-Investigator(Kenkyū-buntansha) |
大島 義信 京都大学, 工学(系)研究科(研究院), 准教授 (10362451)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥15,730,000 (Direct Cost: ¥12,100,000、Indirect Cost: ¥3,630,000)
Fiscal Year 2016: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2014: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
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| Keywords | 路面評価 / IRI / スマートフォン / プロファイル / カルマンフィルタ / 乗り心地 / モデル同定 / 計測工学 / 路面性状評価 / 振動計測 / 状態空間モデル / カルマンフィルター / パラメータ同定 |
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| Outline of Final Research Achievements |
There are research attempts on road profile estimation based on vehicle responses in order to achieve efficient and effective road condition evaluation. However, most approaches use simple Quarter-Car models and employ only acceleration measurement. Half-Car model and angular velocity measurement are important to deal with real vehicle motion, which is often affected by the pitching motion. This research models vehicles by a Half-Car model and a parameter identification method is developed. The profile is estimated with the model in pseudo-real-time. In addition, the estimated profile is converted to IRI and the result can be synchronized with drive-recorder movie files for image-based road evaluation.
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Report
(4 results)
Research Products
(8 results)
