发明名称 |
FUEL INJECTOR DIAGNOSTIC SYSTEM AND METHOD FOR DIRECT INJECTION ENGINE |
摘要 |
A fuel injector diagnostic system includes a fuel pump control module, a pressure sensor, and a diagnostic module. The fuel pump control module disables delivery of fuel to a fuel rail of an engine. The pressure sensor measures a first pressure of the fuel rail before an injection event and a second pressure of the fuel rail after the injection event on at least one of a plurality of injectors when the engine is running. The diagnostic module diagnoses a fault in the at least one of the injectors based on the first pressure and the second pressure.
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申请公布号 |
US2010147058(A1) |
申请公布日期 |
2010.06.17 |
申请号 |
US20080333794 |
申请日期 |
2008.12.12 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
CINPINSKI KENNETH J.;LEE BYUNGHO;DIBBLE DONOVAN L.;LUCIDO MICHAEL J.;CARR MARK D. |
分类号 |
G01M15/04 |
主分类号 |
G01M15/04 |
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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