Internal-combustion engines – Charge forming device – Including exhaust gas condition responsive means
Patent
1999-01-26
2000-08-01
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Including exhaust gas condition responsive means
123480, 12356821, 701104, 701108, F02M 2507, F02D 4304
Patent
active
060951273
ABSTRACT:
A method of controlling the fueling rate of a compression ignition engine having an exhaust gas recirculation system (EGR) and a turbocharger. The method includes the steps of predicting the exhaust gas air/fuel ratio as a function engine operating characteristics and the operator-requested fueling rate. This value is compared to an air/fuel limit value stored in a table of values indexed by engine operating characteristics. The air/fuel limit is the value below which visible smoke occurs. The predicted air/fuel ratio is compared to the air/fuel ratio limit and either (1) the fuel is delivered at the requested rate, (2) the start of injection timing is modified and the fuel is delivered at the requested rate or (3) the fueling rate is limited as a function of the requested fueling rate and measured or determined engine operating parameters.
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Jankovic Mrdjan J.
Kolmanovsky Ilya V.
Moraal Paul Eduard
Van Nieuwstadt Michiel J.
Argenbright Tony M.
Drouillard Jerome R.
Ford Global Technologies Inc.
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