发明名称 |
Method and apparatus for predicting a fuel injector tip temperature |
摘要 |
Methods and apparatus for accurately predicting a fuel injector tip temperature (FITT) are described. One technique for predicting the temperature of a fuel injector tip in an engine suitably includes the steps of estimating an initial temperature of the fuel injector tip and calculating a steady state temperature of the fuel injector tip. A filter coefficient is determined as a function of a rate of airflow into the engine, and the temperature of the fuel injector tip is predicted as a function of said initial temperature, the steady state temperature, and the filter coefficient. In a further embodiment, the steady state temperature is filtered into a feedback temperature at a rate that is determined by the filter coefficient.
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申请公布号 |
US6877486(B2) |
申请公布日期 |
2005.04.12 |
申请号 |
US20030662840 |
申请日期 |
2003.09.15 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
ELLIES BENJAMIN D.;JOHNSTON MARK E.;SHI GUOJUN;PARR MICHAEL DENNY |
分类号 |
F02D41/00;F02D41/06;F02M25/08;F02M33/02;F02M51/00;(IPC1-7):F02M51/00 |
主分类号 |
F02D41/00 |
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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