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

1988-12-19

1990-05-29

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123489, 123480, 123492, F02M 5100

Patent

active

049286544

ABSTRACT:
The quantity of air inducted 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. A basic injection pulse width is calculated by the estimated inducted air quantity and speed of the engine. 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: 4240390 (1980-12-01), Takada
patent: 4640254 (1987-02-01), Ninomiya
patent: 4662339 (1987-05-01), Hotate et al.
patent: 4730590 (1988-03-01), Sogawa
patent: 4741312 (1988-05-01), Ohishi
patent: 4785785 (1988-11-01), Oba et al.

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