发明授权
- 专利标题: Fuel vapor purging diagnostics
- 专利标题(中): 燃油蒸气清洗诊断
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申请号: US12900382申请日: 2010-10-07
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公开(公告)号: US07900608B2公开(公告)日: 2011-03-08
- 发明人: Mark William Peters , Richard Shimon , Robert Roy Jentz , Scott Bohr , Ross Dykstra Pursifull
- 申请人: Mark William Peters , Richard Shimon , Robert Roy Jentz , Scott Bohr , Ross Dykstra Pursifull
- 申请人地址: US MI Dearborn
- 专利权人: Ford Global Technologies, LLC
- 当前专利权人: Ford Global Technologies, LLC
- 当前专利权人地址: US MI Dearborn
- 代理机构: Alleman Hall McCoy Russell & Tuttle LLP
- 代理商 Allan J. Lippa
- 主分类号: F02M33/02
- IPC分类号: F02M33/02 ; F02M25/08
摘要:
Systems and methods are provided for monitoring reverse flow of fuel vapors and/or air through a vehicle fuel vapor recovery system, said fuel vapor recovery system coupled to an engine intake of a boosted internal combustion engine. One example method comprises, during boost, when the fuel vapor recovery system is commanded to be sealed from the intake, indicating degradation based on a pressure value at a venturi in the fuel vapor recovery system.
公开/授权文献
- US20110023837A1 FUEL VAPOR PURGING DIAGNOSTICS 公开/授权日:2011-02-03