CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To suitably perform fuel injection with a large degree of variation in air-fuel ratios between cylinders in an internal combustion engine having a plurality of fuel injection valves on each of a plurality of cylinders.SOLUTION: A control device of an internal combustion engine has means which: performs fuel injection through a first fuel injection valve and a second fuel injection valve provided on each cylinder with a predetermined first proportion; calculates a first value Xindicating a degree of variation in air-fuel ratios between the cylinders on the basis of a predetermined output of the internal combustion engine associated with the fuel injection; performs the fuel injection with a predetermined second proportion; and calculates a second value Xin a manner equal to the first value. The control device also has the means which: selects one of modes including the same related to abnormality of the first fuel injection valve or the second fuel injection valve on the basis of the first value and the second value; calculates the value representing the degree of variation in the air-fuel ratios between the cylinders; and calculates a fuel amount based on the mode and value.