Fuel injection control system for internal combustion engine

Details Fuel injection control system for internal combustion engine Fuel injection control system for internal combustion engine

1987-09-22

1988-06-28

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123478, F02D 4110

Patent

active

047532068

ABSTRACT:
In a fuel injection control system for an internal combustion engine, a basic fuel amount is determined in accordance with detected values of intake air pressure and rotational speed of the engine. The detected value of the intake air pressure is averaged by a predetermined averaging function to infer temperature of air flowing into a cylinder of the engine. The basic fuel amount is corrected by the inferred temperature, more specifically, by the difference between the detected value of the intake air pressure and the averaged value of the same so that undesired change in air-fuel ratio resulting from comparatively slow change in temperature of air flowing into engine cylinder upon acceleration and deceleration of the engine is compensated for.

REFERENCES:
patent: 4651699 (1987-03-01), Ohtaki et al.
patent: 4706632 (1987-11-01), Kasanami et al.

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