Method for controlling fuel injection for automotive engines

Details Method for controlling fuel injection for automotive engines Method for controlling fuel injection for automotive engines

1987-07-10

1988-11-15

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Fuel injection system

123339, 123494, F02M 5100, F02D 4108, F02D 4112

Patent

active

047841036

ABSTRACT:
A basic fuel injection time is obtained based on engine speed and intake-air pressure in an intake passage of an engine downstream of a throttle valve of the engine. The basic fuel injection time is corrected by a correcting value based on a constant for a fuel injector and capacity of a chamber formed in an intake passage and on variation in intake-air pressure at every one rotation of a crankshaft of the engine when the idling state of the engine or throttle rapid closing are detected.

REFERENCES:
patent: 4010717 (1977-03-01), Taplin
patent: 4487190 (1984-12-01), Isobe
patent: 4495921 (1985-01-01), Sawamoto
patent: 4543937 (1985-10-01), Amano et al.
patent: 4545355 (1985-10-01), Takao et al.
patent: 4643154 (1987-02-01), Matsuno et al.

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