A control system for regenerating a particulate matter filter using a catalytic converter as a combustor

摘要

A control system (34) for an engine (30), comprising: an exhaust module (112) that generates a first mass air flow during regeneration of a particulate matter (PM) filter (64) disposed downstream of a catalytic converter (62); MAF) provides exhaust gas generated by the engine (30) upstream of the catalytic converter (62); anda combustion module (110) providing, during regeneration, a first amount of fuel to a cylinder (40) during an intake stroke based on the first MAF and a second MAF to the cylinder (40) during the intake stroke; and providing a second amount of fuel to the cylinder (40) during a subsequent intake stroke based on a first air / fuel (A / F) ratio of the cylinder (40) and an oxygen content of the exhaust downstream of the catalytic converter (62).