Patent ID: 7934485

Claim:
A control device for an internal combustion engine that transmits output to a drive-train via a dual mass flywheel, the control device comprising: an engine rotational state detecting unit that detects rotational fluctuation of the internal combustion engine and an average engine speed of the internal combustion engine; a rotational fluctuation inhibiting unit that executes a process of inhibiting rotational fluctuation for the internal combustion engine when a rotational fluctuation inhibiting condition is satisfied, wherein the rotational fluctuation inhibiting condition is a condition that an actual engine speed fluctuation amount of the internal combustion engine is larger than a reference value that is set for the engine speed fluctuation amount of the internal combustion engine; and a rotational fluctuation inhibiting condition adjusting unit that adjusts the reference value so that the rotational fluctuation inhibiting condition is earlier satisfied when deceleration of the average engine speed of the internal combustion engine that is detected by the engine rotational state detecting unit is larger.