Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1998-10-07
2000-07-11
Kwon, John
Internal-combustion engines
Charge forming device
Fuel injection system
123490, F02M 5100
Patent
active
060857293
ABSTRACT:
In a fuel injection control for engines, a basic transient correction coefficient is calculated to be used for correcting a basic fuel injection amount calculated based on intake air pressure. This transient correction coefficient is itself corrected by a further correction coefficient which corresponds to a fuel injection timing variable so as to overlap with the opening of an intake valve. The basic fuel injection amount is then corrected by the corrected transient correction coefficient to determine a final fuel injection amount. Thus, air-fuel mixture is controlled to a desired air-fuel ratio even when the engine is in a transient condition, thereby improving drivability and exhaust emissions.
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U.S. application No. 09/071,498, Nozawa et al., filed May 4, 1998.
Isobe Daiji
Kondo Wakichi
Denso Corporation
Kwon John
LandOfFree
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