APPARATUS AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE

摘要

An engine body (1) includes a plurality of cylinders, and the intake valve lift-amount of each cylinder is changed based on the engine operation state. A pressure sensor (40) continuously detects the intake pressure, which is the pressure in an intake pipe (IM), to detect the intake pressure decrease amount corresponding to each of the cylinders, the intake pressure decrease amount being the amount of decrease in the intake pressure caused due to execution of the intake stroke. The air quantity variation correction coefficient, which is used to compensate for the variation in the in-cylinder supplied-air quantity with each cylinder, is calculated based on the detected intake pressure decrease amount, and the fuel injection amount is corrected using the air quantity variation correction coefficient.