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

1989-09-22

1990-09-18

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Fuel injection system

123488, 123492, 123493, 123494, F02D 4134

Patent

active

049570889

ABSTRACT:
The quantity of air induced in a cylinder of an engine is estimated by using equations based on various coefficients. The coefficients are stored in a memory and derived in accordance with engine operating conditions. The estimated quantity of induced air is corrected so as to approximate quantity of air actually induced in the cylinder. A basic injection pulse width is calculated based on the corrected air quantity. The basic injection pulse width is corrected by a feedback coefficient, thereby producing a fuel injection pulse width signal for operating a fuel injector of the engine.

REFERENCES:
patent: 4750352 (1988-06-01), Kolhoff
patent: 4884548 (1989-12-01), Sogawa
patent: 4886030 (1989-12-01), Oba et al.
patent: 4892072 (1990-01-01), Miwa et al.
patent: 4899713 (1990-02-01), Nakamura

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