Analog computer circuit for controlling a fuel injection system

Details Analog computer circuit for controlling a fuel injection system Analog computer circuit for controlling a fuel injection system

1979-10-09

1981-08-11

Gruber, Felix D.

Boots, shoes, and leggings

123435, 123491, 364569, F02B 310, F02M 5100

Patent

active

042837626

ABSTRACT:
An analog computer circuit for controlling a fuel injection system during engine cranking. The fuel injection system has an electrically controllable fuel injector that is intermittently actuated. The analog computer circuit develops a logic level signal having cyclically recurring time intervals that vary depending upon the manner in which a capacitor is charged from a DC voltage supply. Several electrical impedances are selectively placed in circuit with the capacitor and the voltage supply to control its rate of charging during engine cranking.

REFERENCES:
patent: 4143621 (1979-03-01), Long
patent: 4148282 (1979-04-01), Grassle et al.
patent: 4176625 (1979-12-01), Stauffer
patent: 4180025 (1979-12-01), Steinbrenner et al.
patent: 4184460 (1980-01-01), Harada et al.
patent: 4205635 (1980-06-01), Kirn et al.
patent: 4208991 (1980-06-01), Reddy
patent: 4221194 (1980-09-01), Wright

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