Patent ID: 6425369
Filing Date: 2002-07-30
Classification: F01L,F02B,F02D,Y02T

Abstract:
A control apparatus for an internal combustion engine comprising:a pair of intake ports provided for each cylinder of the engine; a mode selector which selects, depending on engine operating conditions, either one of a first operating range in which air is drawn into the cylinder only through a first one of the intake ports and a second operating range in which air is drawn into the cylinder through both the intake ports; a fuel injector located in the first intake port through which air flows in all of the first and second operating ranges; and a compensator which switches a compensating mode for an injection amount of fuel injected by the injector, based on changes in a quantity of wall fuel mass flow adhered onto an inner wall surface of each of the intake ports during transient operating conditions, from one of a first compensating mode which is preprogrammed to be suitable for the first operating range and a second compensating mode which is preprogrammed to be suitable for the second operating range to the other.