Patent ID: 7318412
Filing Date: 2008-01-15
Classification: F02D

Abstract:
1. A control device for an internal combustion engine, said internal combustion engine including a first fuel injection mechanism injecting fuel into a cylinder and a second fuel injection mechanism injecting fuel into an intake manifold, comprising: a first control unit controlling said fuel injection mechanisms so that the fuel is injected solely from any one of said first fuel injection mechanism and said second fuel injection mechanism at least during cranking and idling in which a temperature of said internal combustion engine is equal to or lower than a predetermined value; a second control unit controlling said fuel injection mechanisms so that the fuel is injected from said first fuel injection mechanism and said second fuel injection mechanism; a first calculation unit calculating a feedback correction amount for an amount of fuel injection based on an air-fuel ratio; a second calculation unit calculating a learn value of the feedback correction amount when a predetermined condition is satisfied; a prohibition unit prohibiting calculation of the learn value at least during a period from start of cranking of said internal combustion engine to full combustion thereof; and a permission unit permitting calculation of the learn value during a predetermined period after full combustion of said internal combustion engine.