Invention Grant
- Patent Title: Vapor purge system integrity diagnosis for a hybrid vehicle
- Patent Title (中): 混合动力汽车的蒸汽吹扫系统完整性诊断
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Application No.: US13355793Application Date: 2012-01-23
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Publication No.: US08371272B1Publication Date: 2013-02-12
- Inventor: Douglas Raymond Martin , Ann Irene Sipes , Robert Roy Jentz , Aed Mohammad Dudar , Mark W. Peters , Guopeng Hu
- Applicant: Douglas Raymond Martin , Ann Irene Sipes , Robert Roy Jentz , Aed Mohammad Dudar , Mark W. Peters , Guopeng Hu
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Brooks Kushman P.C.
- Agent Jülia Voutyras
- Main IPC: F02M33/02
- IPC: F02M33/02
Abstract:
A method for testing a vapor purge system (VPS) for an internal combustion engine, and a hybrid vehicle having the VPS include a controller for closing a first valve coupled between a carbon canister of the VPS and the ambient environment, motoring the engine to pull a vacuum on the VPS, closing a second valve coupled between the carbon canister and the engine, and monitoring pressure in the VPS. The VPS has a carbon canister coupled to the engine via a first valve and coupled to atmosphere via a second valve, and a pressure transducer.
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