Title:
EVAP CANISTER PURGE PREDICTION FOR ENGINE FUEL AND AIR CONTROL
Document Type and Number:
WIPO Patent Application WO2005108761
Kind Code:
A3
Abstract:
In a system and a method for purging a vapor storage canister having adsorbed fuel vapor (or hydrocarbon vapor) by drawing air through the storage canister the storage canister being coupled with an engine having a system for controlling the amount of fuel provided to the engine, the amount of fuel vapor in the purge is estimated using a model that predicts fuel vapor concentration in the purge vapor. The engine controller uses the estimated amount of fuel vapor and air brought into the engine from the evaporative vapor storage canister for better control of engine air and fuel during purging.
Inventors:
REDDY SAM R (US)
Application Number:
PCT/US2005/009558
Publication Date:
July 20, 2006
Filing Date:
March 22, 2005
Export Citation:
Assignee:
GEN MOTORS CORP (US)
International Classes:
A61M11/00; A61M15/00; A61M16/00; F02D41/00; A41D19/00; A44C5/00; A45F3/14; A45F5/00; A45F5/14; A62B7/00; A62B9/00; A62B18/00; B62J7/00; B62J9/00; B62J11/00; F02M25/08; F02M37/10
Foreign References:
| US20030141325A1 | 2003-07-31 | |||
| USD404562S | 1999-01-26 | |||
| US6615827B2 | 2003-09-09 | |||
| US6112961A | 2000-09-05 | |||
| US5570817A | 1996-11-05 | |||
| US5531359A | 1996-07-02 |
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