发明名称 |
METHOD OF DETERMINING A LEAK IN A VAPOR MANAGEMENT SYSTEM OF A VEHICLE FUEL SYSTEM AND VAPOR MANAGEMENT SYSTEMS FOR A VEHICLE INCLUDING MEANS FOR DETERMINING LEAKS |
摘要 |
<p>A vapor management system (10) includes a sense tube (47) disposed in a fuel tank (12). A differential pressure sensor (17) has one side connected to the sense tube and another side connected to a vapor cavity so that the pressure sensor can measure a differential pressure (DP) between a volume of the vapor cavity and a volume of the sense tube containing liquid fuel. A temperature sensor (26) is in the vapor cavity. A processor 1 ) receives DP and T measurements at certain time intervals to determine the temperature at time zero (To), the differential pressure at time zero (DPo), the temperature at a certain time (Tt), and the differential pressure at a certain time (DPt), and 2) when (Tt - To) is greater than a certain value, compares DPt to a certain differential pressure value.</p> |
申请公布号 |
WO2013082406(A1) |
申请公布日期 |
2013.06.06 |
申请号 |
WO2012US67263 |
申请日期 |
2012.11.30 |
申请人 |
PERRY, PAUL, D.;CONTINENTAL AUTOMOTIVE SYSTEMS, INC.;CRISAN, ADRIAN, O. |
发明人 |
PERRY, PAUL, D.;CRISAN, ADRIAN, O. |
分类号 |
F02M25/08;B60K15/03;B60K15/035 |
主分类号 |
F02M25/08 |
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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