A SYSTEM AND A METHOD OF DETECTING ENGINE MISFIRE USING OPTIMAL DELAYED PHASE ANGLE

摘要

Intended to provide an engine misfire detection when the engine rotation speed and the engine to prevent the erroneous detection or non-detection of a misfire occurring, depending on the operating conditions such as load misfire detecting system and detecting method,; While continuing to measure the time it takes the crank shaft per predetermined rotating angle, when the engine output by changing the engine misfire, in the engine misfire detection method that uses the rate of change of the time as a measure of the misfire detection,; When the rate of change of the time required per angle predetermined rotation of the crankshaft upon a change in engine torque according to the engine misfire be incorrectly detected by such a mechanical characteristic of the system according to the driving conditions and the inertial force, setting the optimum phase delay angle for each operating condition the engine misfire detection performed by the crank shaft to compensate for the time taken per a predetermined rotation angle, it is possible to improve the reliability of the engine misfire detection.