ENGINE MISFIRE IDENTIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE, VEHICLE EQUIPPED WITH THE SAME AND METHOD OF ENGINE MISFIRE IDENTIFICATION

摘要

When the operating state of an engine consisting of the rotation speed Ne and the torque Te thereof does not belong to the post-stage resonance region including a damper as a torsion element, misfire is judged by normal time misfire detection processing (S120). When the operating state of the engine belongs to the post-stage resonance region, including a damper, misfire is judged by resonance region misfire detection processing different from the normal time misfire detection processing (S130). Consequently, misfire can be judged more exactly and precisely both when the operating stale of the engine belongs to and does not belong to the post-stage resonance region.