Apparatus for controlling air-fuel ratio of air-fuel mixture to

Details Apparatus for controlling air-fuel ratio of air-fuel mixture to Apparatus for controlling air-fuel ratio of air-fuel mixture to

1994-06-13

1995-12-19

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

Fuel injection system

123480, 123520, F02M 5100, F02M 2508, F02D 4104

Patent

active

054760810

ABSTRACT:
An air-fuel ratio control apparatus includes: a determining part for determining a target purge ratio in accordance with operating conditions of an engine; a purge control part for controlling a flow rate of evaporated fuel, supplied from an evaporated fuel purge system into an intake passage of the engine, by actuating a purge control valve based on the target purge ratio, and for storing an evaporated fuel flow rate of the purge control valve; a fuel injection control part for generating a drive signal in accordance with a fuel injection time, and for controlling an air-fuel ratio of an air-fuel mixture to the intake passage by actuating a fuel injection valve in accordance with the drive signal; an estimating part for estimating the ratio of an evaporated fuel flow rate to an intake air flow rate based on sensed operating conditions of the engine and on the stored evaporated fuel flow rate of the purge control part; and a fuel injection time determining part for determining a fuel injection time based on the estimated ratio, and for supplying the fuel injection time to the fuel injection control part.

REFERENCES:
patent: 4967715 (1990-11-01), Hosaka
patent: 5085194 (1992-02-01), Kuroda et al.
patent: 5090388 (1992-02-01), Hamburg et al.
patent: 5143040 (1992-09-01), Okawa et al.
patent: 5150696 (1992-09-01), Kabasin et al.
patent: 5215061 (1993-06-01), Ogawa et al.
patent: 5216997 (1993-06-01), Osanai et al.
patent: 5216998 (1993-06-01), Hosoda et al.
patent: 5224462 (1993-07-01), Orzel
patent: 5245978 (1993-09-01), Orzel
patent: 5257613 (1993-11-01), Monda et al.
patent: 5267548 (1993-12-01), Rosenzopf et al.
patent: 5282449 (1994-02-01), Takahashi et al.
patent: 5299546 (1994-04-01), Kato et al.
patent: 5351193 (1994-09-01), Poirier et al.
patent: 5359980 (1994-11-01), Tomisawa

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