发明名称 |
FUEL SYSTEM DIAGNOSTICS BY ANALYZING ENGINE CRANKSHAFT SPEED SIGNAL |
摘要 |
Combustion within an internal combustion engine is diagnosed and includes monitoring crankshaft angular velocity and generating a combustion phasing value for a combustion chamber based on the crankshaft angular velocity. The combustion phasing value is compared to an expected combustion phasing value based on a predetermined start of injection crank angle and combustion phasing differences greater than an allowable combustion phasing difference are identified based on the comparison.
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申请公布号 |
US2009312932(A1) |
申请公布日期 |
2009.12.17 |
申请号 |
US20080139782 |
申请日期 |
2008.06.16 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
WANG YUE-YUN;HASKARA IBRAHIM;KWEON CHOL-BUM M.;MATEKUNAS FREDERIC ANTON;BATTISTON PAUL ANTHONY |
分类号 |
F02D41/00 |
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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