Start and termination timing control of fuel injection

Details Start and termination timing control of fuel injection Start and termination timing control of fuel injection

1985-07-29

1987-03-03

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

123427, F02D 4118

Patent

active

046466983

ABSTRACT:
An electronically controlled fuel injection system for an internal combustion engine, the system being of the type which controls fuel injection using the charging and discharging of a capacitor and comprising engine operating parameter sensors, a capacitor, and a control unit for controlling the charging and discharging of the capacitor. The charging of the capacitor is initiated at a timing determined as a function of engine speed and throttle opening angle and the discharging thereof is initiated subsequently to the completion of the charging. The charging time period is determined by engine speed and the discharging current is determined by intake air quantity. A basic fuel injection signal is produced so as to have a pulse duration equal to the discharging time period.

REFERENCES:
patent: 3890944 (1975-06-01), Werner et al.
patent: 4121545 (1978-10-01), Mizote
patent: 4140087 (1979-02-01), Daumer et al.
patent: 4221194 (1980-09-01), Wright
patent: 4314534 (1982-02-01), Nakajima et al.
patent: 4320732 (1982-03-01), Schnurle et al.
patent: 4574761 (1986-03-01), Isomura et al.

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