发明名称 |
Diagnostic system for identifying fuel injector failure in a fuel cell system |
摘要 |
A diagnostic system and method identifies fuel injector failure in a fuel cell system including a fuel processor and a fuel source. A fuel injector supplies fuel from the fuel source to the fuel processor. A pressure sensor generates a pressure signal based on pressure between the fuel source and the fuel injector. A fuel injector diagnostic identifies fuel injector failure based on the pressure signal. The fuel injector diagnostic includes a moving window tracker that tracks the pressure signal over a moving window. The fuel injector diagnostic further includes a standard deviation or variance calculator that generates a standard deviation or variance based on the pressure signal in the moving window.
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申请公布号 |
US6755077(B2) |
申请公布日期 |
2004.06.29 |
申请号 |
US20020164293 |
申请日期 |
2002.06.06 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
CLINGERMAN BRUCE J.;KESKULA DONALD H.;STUART JULIE A. |
分类号 |
H01M8/04;G01M15/00;G01M99/00;H01M;H01M8/06;(IPC1-7):G01M15/00 |
主分类号 |
H01M8/04 |
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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