| Project/Area Number |
25420456
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Control engineering/System engineering
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| Research Institution | Kagawa National College of Technology |
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Principal Investigator |
URUSHIHARA SHIRO 香川高等専門学校, 電気情報工学科, 准教授 (90311092)
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| Co-Investigator(Kenkyū-buntansha) |
OHISHI KIYOSHI 長岡技術科学大学, 工学部, 教授 (40185187)
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| Co-Investigator(Renkei-kenkyūsha) |
MIYAZAKI TOSHIMASA 長岡技術科学大学, 工学部, 准教授 (90321413)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 力覚フィードバック / センサレス制御 / 高精度圧力推定 / 反力推定オブザーバ / 推定遅れの改善 / パラメータ自動切替型オブザーバ / 定常偏差の低減 / パラメータ自動切替オブザーバ / ストライベックモデル / 過渡特性の改善 / 粘弾性モデル / 摩擦フリーオブザーバ / オブザーバの低次元化 |
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| Outline of Final Research Achievements |
The force control system of a typical injection molding machine obtains force information from the machine's environment via a force sensor. Force sensors often have dis-advantages such as signal noise, sensor cost, and a narrow bandwidth, so the reaction force observer was developed for electric injection molding machines. This method has both a transient estimated error due to parameter variations and a steady-state error owing to the influence of nonlinear friction. To overcome the transient error, we proposed estimation method which considers the influence of injection material with automatic parameter-switching algorithm. In addition, a friction model is proposed which takes into account the stribeck effect in order to improve the steady-state error. Moreover, the availability of proposed integrated estimation algorithms sre confirmed by the simulation results using the actual measured value for super-thin film generation.
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