Digital control device for a fuel injection system of an interna

Details Digital control device for a fuel injection system of an interna Digital control device for a fuel injection system of an interna

1977-10-28

1980-02-19

Konick, Bernard

Internal-combustion engines

Noncompression

123 32EB, F02B 300

Patent

active

041889223

ABSTRACT:
Disclosed is a digital control device for controlling at least one of the solenoids of the fuel injection valves associated with an internal combustion engine in accordance with both the amount of air introduced into the engine and the number of revolutions of the engine. The digital control device comprises two pulse generating means, a switching element, a binary counter, and a digital computer. A pulse signal provided from a pulse generating means and exhibiting a pulse width which is inversely proportional to the number of revolutions of the engine, causes the switching element to close. Pulse signals provided from other pulse generating means, each signal having a frequency which is proportional to the amount of air introduced into the engine, pass through the switching element during the conducting period of the switching element. The number of the passing pulse signals is thereby counted by the binary counter. The digital signal provided from the binary counter is applied to the digital computer so as to perform arithmetic functions for controlling the solenoids of the fuel injection valves.

REFERENCES:
patent: 3898962 (1975-08-01), Honig
patent: 3986006 (1976-10-01), Kawai
patent: 3991727 (1976-11-01), Kawai
patent: 4048965 (1977-09-01), Biachi
patent: 4050878 (1977-09-01), Priegel

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