Fuel injection control device for engine

Details Fuel injection control device for engine Fuel injection control device for engine

1996-06-04

1998-03-03

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Having plural throttle valve structure

123442, 123491, F02D 4106, F02D 900

Patent

active

057223653

ABSTRACT:
A fuel injection control device for an engine including an intake air control valve arranged in the intake passage comprises a fuel injector arranged in the downstream of the intake air control valve. In the engine starting operation, the intake air control valve is closed. After the completion of the engine starting operation, the intake air control valve is controlled to make the opening thereof equal to the intermediate opening, and the fuel injection time is calculated based on the negative pressure in the intake passage upstream of the intake air control valve. During a delay period in which the opening of the intake air control valve is smaller than the intermediate opening, the fuel injection time is reduced based on the actual opening of the intake air control valve and on the engine speed, to thereby make the fuel amount to be injected equal to the suitable amount.

REFERENCES:
patent: 5477826 (1995-12-01), Hara et al.
patent: 5492095 (1996-02-01), Hara et al.
patent: 5542388 (1996-08-01), Ichinose et al.
patent: 5596957 (1997-01-01), Ichinose et al.
patent: 5632249 (1997-05-01), Sadakane et al.

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