Fuel injection control system for automotive engine

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

1989-07-21

1990-11-06

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123492, F02D 4100

Patent

active

049677110

ABSTRACT:
A pressure sensor is provided for detecting the pressure of intake air in a cylinder of an engine. A pressure difference between a first cylinder pressure detected after closing an intake valve and a second cylinder pressure after the first cylinder pressure detection and before an ignition timing. The quantity of intake air is calculated based on the pressure difference and the engine seed. A basic fuel injection pulse width in calculated based on the calculated quantity of intake air. A fuel injector is actuated in accordance with the calculated basic fuel injection pulse width for injecting fuel.

REFERENCES:
patent: 4705001 (1987-11-01), Danno et al.
patent: 4706632 (1987-11-01), Kasanami et al.
patent: 4714067 (1987-12-01), Staerzl
patent: 4725954 (1988-02-01), Takao et al.
patent: 4733358 (1988-03-01), Abthoff et al.
patent: 4736725 (1988-04-01), Iwaki et al.
patent: 4763264 (1988-08-01), Okuno et al.

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