发明名称 |
Automotive evaporative emission leak detection system and method |
摘要 |
An on-board evaporative emission leak detection system and method that detects leakage from an evaporative emission space of a fuel system of an automotive vehicle. A test includes an initialization, or stabilization, phase during which a differential between pressure in the evaporative emission space and atmospheric pressure is created, and then varied, over time, within a range of differential pressures suitable for performing a leak detection test. A leak size measurement is then obtained using an algorithm.
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申请公布号 |
US6044314(A) |
申请公布日期 |
2000.03.28 |
申请号 |
US19980037785 |
申请日期 |
1998.03.10 |
申请人 |
SIEMENS CANADA LTD. |
发明人 |
COOK, JOHN;WELDON, CRAIG A.;PERRY, PAUL D.;RASOKAS, RAYMOND |
分类号 |
G01M3/02;(IPC1-7):G01M15/00 |
主分类号 |
G01M3/02 |
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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