发明名称 |
Solenoid diagnostic systems for cylinder deactivation control |
摘要 |
A solenoid diagnostic system includes a pressure monitoring module that determines a first pressure in an intake cam phaser for an intake camshaft and a second pressure in an exhaust cam phaser for an exhaust camshaft associated with a cylinder. A fuel injection monitoring module determines a fuel injection status associated with the cylinder. A fault determination module diagnoses a fault in a solenoid associated with the cylinder based on the first pressure, the second pressure, and the fuel injection status.
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申请公布号 |
US7908913(B2) |
申请公布日期 |
2011.03.22 |
申请号 |
US20080338017 |
申请日期 |
2008.12.18 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS LLC |
发明人 |
CINPINSKI KENNETH J.;DULZO JOSEPH R. |
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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