发明名称 |
Detection of fuel system problems |
摘要 |
A method for detecting failures in a fuel system of a motor vehicle including monitoring a feed-forward table of a fuel pump controller that is electrically connected to a fuel pump of the fuel system. The fuel pump controller is electrically connected to a rail pressure sensor, which is coupled to the fuel injector rail. The actual fuel injector rail pressure measured by the rail pressure sensor is compared to a desired fuel injector rail pressure associated with the feed-forward table. The feed-forward table is adjusted if the actual fuel injector rail pressure is less than the desired fuel injector rail pressure. A fuel system error is signaled if an adjusted feed-forward table differs from an initial feed-forward table. A fuel system failure is signaled of the adjusted feed-forward table requires a saturation voltage of the controller.
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申请公布号 |
US7487761(B1) |
申请公布日期 |
2009.02.10 |
申请号 |
US20070782217 |
申请日期 |
2007.07.24 |
申请人 |
VISTEON GLOBAL TECHNOLOGIES, INC. |
发明人 |
CULBERTSON THOMAS RAYMOND;PURSIFULL ROSS DYKSTRA;MCDONALD DENNIS |
分类号 |
F02M37/04;F02M37/08 |
主分类号 |
F02M37/04 |
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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