PROCESS AND DEVICE TO DETECT IRREGULARITIES IN COMBUSTION IN AN ENGINE, PARTICULARLY AT MEDIUM AND HIGH SPEED.

摘要

THE INVENTION REFERS TO A PROCESS AND DEVICE FOR DETECTING DETECTION IRREGULARITIES IN AN INTERNAL COMBUSTION ENGINE. THE PROCESS CONSISTS IN MEASURING THE TIME INTERVALS BETWEEN THE ANGULAR POSITIONS OF THE CRANKSHAFT, IN GROUPING THESE TIME DIFFERENCES IN SAMPLE GAMES THAT CORRESPOND TO EACH PHASE OF COMBUSTION, IN CALCULATING THE CRITICAL PARAMETER OF THE CRITICAL VENTURE INSTANT SPEED AT COMBUSTION, AND COMPARE THIS PARAMETER WITH A FAILURE THRESHOLD IN ORDER TO MAKE A COMBUSTION DIAGNOSIS. THE INVENTION MAKES IT POSSIBLE IN PARTICULAR TO PERFORM A DIAGNOSIS AT MEDIUM AND HIGH SPEEDS.