Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2006-09-26
2006-09-26
Tran, Binh Q. (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
C060S274000, C060S285000, C060S287000, C060S290000, C060S292000
Reexamination Certificate
active
07111454
ABSTRACT:
An engine control system and method maintains an optimum exhaust fuel to air ratio in an internal combustion engine. A secondary air injection (SAI) pressure is measured in an SAI system. The SAI pressure measurement is converted into an SAI flow value. A fuel compensation value is obtained based on the SAI flow value. Fuel delivery is compensated to the engine based on the fuel compensation value. In a second embodiment, the fuel compensation value is obtained based on the SAI pressure measurement. Fuel delivery is compensated to the engine based on the fuel compensation value. In a third embodiment, a primary flow value is calculated at an air intake of the engine. A fuel compensation value is calculated based on the SAI flow and primary flow values. Fuel delivery to the engine is compensated based on the fuel compensation value.
REFERENCES:
patent: 5235956 (1993-08-01), Yoshizaki
patent: 6085517 (2000-07-01), Bayerle et al.
patent: 6715280 (2004-04-01), Lewis et al.
patent: 6830043 (2004-12-01), Morinaga et al.
patent: 6918245 (2005-07-01), Hirooka et al.
patent: 6966177 (2005-11-01), Koyama et al.
Eng James A.
Fulcher Stephen K.
Jess Richard B.
Risse Patrick L.
Smith Stuart R.
DeVries Christopher
General Motors Corporation
Tran Binh Q.
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