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US 5,957,094 AGranted
Fuel control enhancements for a sensorless flexible fueled vehicle
AssigneeChrysler Corporation
InventorsHoward W. Krausman, Mark E. Hope, Shean Huff, Mary Joyce, Gary L. Seitz
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Abstract
The present invention provides a method of controlling operating parameters of a motor vehicle capable of operating on more than one type of fuel. The methodology employs a separate idle air control enrichment fuel multiplier for optimizing idle air control operating conditions. The methodology also employs a separate transient enrichment fuel multiplier for optimizing transient operating conditions.
Claims2
A method of controlling combustion parameters of an internal combustion engine in a flexible fueled vehicle comprising:
- monitoring said internal combustion engine for an idle air control enrichment condition;
- monitoring said internal combustion engine for a transient enrichment condition;
- setting said combustion parameters according to a first fueling strategy if said idle air control enrichment condition is detected;
- and
- setting said combustion parameters according to a second fueling strategy if said transient enrichment condition is detected;
- wherein said first fueling strategy for said idle air control enrichment condition corresponds to an alcohol idle air control fuel factor and an alcohol transient enrichment factor.
3 more elements
Dependencies are inferred from the claim text.