Patent ID: 7765791

Claim:
System for evaluating the soot loading state of depollution means integrated in an exhaust line of a motor vehicle engine which comprises: means for determining the type of driving of the vehicle, means for determining, as a function of this determined type of driving, of a mass of elementary carbon emitted by the engine, means for combining these elementary masses during the operation of the engine to obtain a total mass, means for calculating the volume of ashes from the lubrication oil of the engine, means for calculating the volume of ashes from the fuel for the supply of the engine, means for calculating the useful volume of the depollution means from a total volume of these means when they are new or cleaned and from the volumes of ashes calculated previously, and means for calculating the loading state of the depollution means from the total mass, the useful volume and the maximal density of the deposits on the depollution means.