发明名称 |
Fault condition monitoring of a fuel level sensor |
摘要 |
<p>A method is presented for determining whether a fuel sensor in a vehicle having a fuel tank, a fuel delivery system, electronic engine controller, air flow and air/fuel ratio sensors and an instrument panel is stuck in-range. First, the electronic engine controller from the information provided by the above sensors estimates an amount of fuel consumed. The estimate is then compared to the'actual fuel consumed data from the fuel sensor. If the difference between the actual and estimated amounts exceeds a small predetermined constant, the determination is made that the fuel sensor is stuck in-range and a diagnostic code is sent to the instrument panel and stored for use by a service technician. <IMAGE></p> |
申请公布号 |
EP1139077(A2) |
申请公布日期 |
2001.10.04 |
申请号 |
EP20000311479 |
申请日期 |
2000.12.20 |
申请人 |
FORD GLOBAL TECHNOLOGIES, INC. |
发明人 |
DAVISON, LYNN EDWARD;MELVILLE, THOMAS ROBERT |
分类号 |
G01F9/00;G01F9/02;G01F25/00;(IPC1-7):G01F25/00 |
主分类号 |
G01F9/00 |
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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