DETERMINING AND CORRECTING THE PHASING OF THE ANGULAR POSITION OF A FOUR-STROKE INTERNAL COMBUSTION ENGINE WITH INDIRECT INJECTION AND WITH TIME-CONTROLLED INTERRUPTION OF SEQUENTIAL INJECTION/SEQUENTIAL REINJECTION

摘要

Method of determining the phasing of the angular position of a four-stroke internal combustion engine with indirect injection and with time-controlled interruption of sequential injection/sequential reinjection, characterized in that it comprises the following steps when the engine is running: observation of the curve (3, 4) of the engine speed (1) as a function of time (2) during a phase of interruption of sequential injection and/or sequential reinjection carried out in accordance with the expected transmission oscillations; discrimination based on the shape of said curve (3, 4), a substantially linear shape (3) being indicative of correct phasing, while a substantially sinusoidal shape (4) is indicative of incorrect phasing. Application to the correction of phasing.