PROCEDE DE CONTROLE DES EMISSIONS POLLUANTES D'UN MOTEUR A COMBUSTION

摘要

A method for monitoring a system for treating the NOx present in the exhaust gases of an internal combustion engine using a reducing agent injected into the exhaust pipe upstream of an NOx reduction catalyst, said monitoring comprising the observation of treatment effectiveness comprising measurement of the quantity of NOx present downstream of the NOx reduction catalyst, characterized in that a filter is applied to the observed effectiveness value.