Fuel injection control system for an automotive engine

Details Fuel injection control system for an automotive engine Fuel injection control system for an automotive engine

1988-11-14

1990-02-27

Wolfe, Willis R.

Internal-combustion engines

Engine speed regulator

Idle speed control

123478, F02D 4108

Patent

active

049036602

ABSTRACT:
A system for controlling fuel injection of an engine having a bypass around a throttle valve, and idle speed control valve provided in the bypass, and a fuel injector. A basic injection pulse width is decided in accordance with engine speed and throttle position of the throttle valve. The system has a detector detecting idling operation of the engine, for producing an idle signal, and a controller for producing a control value signal for controlling the idle speed control valve in accordance with engine speed upon the idle signal. The basic injection pulse width is corrected with a correction value relative to the control value signal.

REFERENCES:
patent: 4506639 (1985-03-01), Murakami
patent: 4570592 (1986-02-01), Otobe
patent: 4700675 (1987-10-01), Otobe et al.
patent: 4708109 (1987-11-01), Takao
patent: 4727844 (1988-03-01), Morita et al.
patent: 4821698 (1989-04-01), Atago et al.
patent: 4838223 (1989-06-01), Tanabe et al.

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