发明名称 |
Method for controlling a process for automatically pouring molten metal, a system for controlling a servomotor of an automatic pouring apparatus, and a medium for recording programs for controlling a tilting of a ladle |
摘要 |
A method for controlling a ladle to pour molten metal into a mold. The method comprises producing a mathematical model describing a relationship between a measured electrical voltage supplied to a servomotor for tilting the ladle and a flow rate of the molten metal flowing out of the ladle when the ladle is tilted; solving an inverse problem of the mathematical model; estimating the flow rate of the molten metal using a state observer having an exponential damping that uses an extended Kalman filter, based on the measured electrical voltage and a weight of the molten metal poured into the mold; processing the flow rate of the molten metal and a target flow rate of the molten metal with a gain-scheduled PI controller; obtaining a target electrical voltage to be supplied to the servomotor; and controlling the servomotor based on the target electrical voltage. |
申请公布号 |
US8202472(B2) |
申请公布日期 |
2012.06.19 |
申请号 |
US20080597143 |
申请日期 |
2008.03.28 |
申请人 |
NODA YOSHIYUKI;TERASHIMA KAZUHIKO;MIYOSHI TAKANORI;OTA KAZUHIRO;SUZUKI MAKIO;SINTOKOGIO, LTD.;NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGY |
发明人 |
NODA YOSHIYUKI;TERASHIMA KAZUHIKO;MIYOSHI TAKANORI;OTA KAZUHIRO;SUZUKI MAKIO |
分类号 |
B22D41/06 |
主分类号 |
B22D41/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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