Fuel injection amount control system for internal combustion...

F - Mech Eng,Light,Heat,Weapons – 02 – D

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F02D 3/00 (2006.01) F02D 41/04 (2006.01)

Patent

CA 2136908

A fuel injection amount control system for an internal combustion engine includes an ECU which calculates a first amount of fuel directly drawn into each combustion chamber out of an amount of fuel injected into the intake passage via a corresponding fuel injection valve, a second amount of fuel carried off fuel adhering to the wall surface of the intake passage into the combustion chamber, and an amount of fuel to be injected into the intake passage, based on the first fuel amount and the second fuel amount, calculates an air-fuel ratio correction amount, based on an output form an air-fuel ratio sensor arranged in the exhaust system, and corrects the amount of fuel to be injected into the intake passage by the air-fuel ratio correction amount. Further, the ECU corrects the second fuel amount, based on the air-fuel ratio correction amount.

Sytème de commande de volume d'injection pour moteur à combustion interne comportant un module de commande électronique servant à calculer un premier volume de carburant directement introduit dans chacune des chambres de combustion par rapport à un volume de carburant injecté dans le passage d'admission par une soupape d'injection de carburant, un deuxième volume de carburant emporté par adhérence à la surface de la paroi du passage d'admission vers la chambre de combustion sur la base des premier et deuxième volumes de carburant, qui calcule également le niveau de correction du rapport du mélange air-carburant sur la base des données fournies par le détecteur de rapport air-carburant, et qui corrige le volume de carburant à injecter dans le passage d'admission sur la base du niveau de correction calculé. En outre, le module de commande électronique corrige le deuxième volume de carburant sur la base du niveau de correction du rapport air-carburant.

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