Combustion state detection system for internal combustion engine

摘要

A combustion state detection system for an internal combustion engine, in which the engine combustion state is detected by the combustion state parameter calculated from a time signal associated with the rotation of the crankshaft by a predetermined angle. The system comprises a device (104) for compensating for the combustion state parameter and a combustion state parameter compensating permitting condition determining device (103) for permitting or inhibiting the execution of the combustion state parameter compensation device. <IMAGE>