EXHAUST GAS TREATMENT SYSTEM (ATS) FOR INTERNAL COMBUSTION ENGINE

摘要

Exhaust gas treatment system (ATS) for internal combustion engine, the system being based on an open particulate filter (F), the treatment system comprising a Diesel Oxidation Catalyst (C) upstream of the filter (F) according to a direction of the exhaust gas outflow (EG) and means for controlling the injection (ECU) in order to control a predetermined air/fuel ratio (lambda) to be supplied to the engine, and wherein the injection control means (ECU) comprise means for promoting an enrichment of the air/fuel ratio in order to cause an active regeneration of the particulate filter and means for limiting said enrichment, during said active regeneration procedure, acting as a function of the power/torque required to the internal combustion engine.