SULPHUR OXIDE (SOx) REMOVAL METHOD AND SYSTEM AND STOP MODULE FOR SAID SYSTEM

摘要

The invention relates to a system for the removal of SOx (sulphur oxide) stored in a nitrogen oxide (NOx) trap associated with an oxidation catalyst and disposed in an exhaust line of an engine, said system including a stop module (54) capable of controlling the stopping a NOx trap purge task as a function of the SOx removal speed estimated by an estimator (60).