Method of and device for supervising electrical fuel injection s

Details Method of and device for supervising electrical fuel injection s Method of and device for supervising electrical fuel injection s

1983-10-14

1985-03-05

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123630, G06F 1100

Patent

active

045024472

ABSTRACT:
Disclosed are a method and a device for indicating the malfunction of an apparatus for generating injection control pulses for a fuel injection system. The method compares relatively narrow trigger pulses derived from ignition pulses with the fuel injection control pulses. When the injection control pulses coincide with the trigger pulses, no indication is present. Only when an injection control pulse is missing does the trigger pulse prevail and trigger a bistable switching circuit which activates an optical or acoustical indicator.

REFERENCES:
patent: 3938075 (1976-02-01), Reddy
patent: 3948228 (1976-04-01), Luchaco
patent: 4049957 (1977-09-01), Kera et al.
patent: 4357919 (1982-11-01), Hatter et al.
patent: 4383409 (1983-05-01), Otsuka et al.

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