Electronic fuel control method and apparatus for fuel injection

Details Electronic fuel control method and apparatus for fuel injection Electronic fuel control method and apparatus for fuel injection

1987-04-27

1988-09-27

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Fuel injection system

123494, 36443105, 364510, F02D 4118, F02M 5100

Patent

active

047733756

ABSTRACT:
A method and apparatus for electronically controlling injection of fuel into an engine selectively uses fuel injection control based on an intake air flow rate sensing system (e.g. L-J system fuel injection control) and fuel injection control based on a speed density system (e.g. D-J system fuel injection control), this depending upon the amount of intake air. In an engine operating region where a control relationship between these two forms of fuel injection control is constant, e.g. in an operating region where the amount of intake air is low, the relationship is stored. In a region of high air intake, where the relationship no longer holds, the amount of fuel injection in the speed density system is corrected on the basis of the aforementioned relationship.

REFERENCES:
patent: 4264961 (1981-04-01), Nishimura
patent: 4562814 (1986-01-01), Abo
patent: 4593667 (1986-06-01), Sasaki
patent: 4616621 (1986-10-01), Kuroiwa
patent: 4644474 (1987-02-01), Aposchanski
patent: 4664090 (1987-05-01), Kabasin
patent: 4671242 (1987-06-01), Akiyama

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