SYSTEM FOR EVALUATING THE CHARGE STATE OF AN EXHAUST LINE DEPOLLUTION MEANS

摘要

The inventive system for evaluating the charged state of depollution means integrated into the exhaust line of a motor vehicle engine is characterised in that it comprises means ( 7 ) for determining a pressure in the depollution means, means ( 8 ) for determining the volume gas flowrate upstream said depollution means ( 10 ) and means for comparing the depollution means state defined by the thus determined pressure and the volume flowrate with a predetermined diagram ( 11 ) of the absent, overcharged and clogged states of the depollution means in order to evaluate the state thereof.