Method for controlling fuel supply to an internal combustion eng

Internal-combustion engines – Charge forming device – Fuel injection system

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Details

123325, 123492, F02D 502

Patent

active

045109117

ABSTRACT:
A method of controlling the fuel supply to an internal combustion engine immediately after termination of a fuel cut operation thereof which is effected at deceleration of the engine, in a manner increasing the quantity of fuel being supplied to the engine by an increment which is set in sychronism with generation of pulses of a predetermined control signal generated at predetermined crank angle positions of the engine. The magnitude of change of the rotational speed of the engine is detected for a period of time after a transition of the operative state of the engine from the fuel cut operation to a normal operation wherein fuel supply is effected has been detected and before a predetermined number of pulses of the above predetermined control signal are generated. Among a plurality of predetermined groups of fuel increments having different fuel quantity increasing characteristics from each other, one group is selected which corresponds to the detected magnitude of change of the rotational speed of the engine, to effect the above increase of the fuel quantity by the use of the selected group of fuel increments.

REFERENCES:
patent: 4221193 (1980-09-01), Ezoe et al.
patent: 4311123 (1982-01-01), Glockler et al.

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