METHOD FOR THE POST-TREATMENT OF EXHAUST GASES BY SUBSEQUENT INJECTION OF FUEL IN A DIESEL-TYPE INTERNAL COMBUSTION ENGINE PROVIDED WITH A PRE-CATALYST AND A PARTICLE FILTER

摘要

A process is proposed for exhaust gas aftertreatment by afterinjection of fuel in a diesel internal combustion engine with a precatalyst and a particulate filter, in which process the afterinjection NE is performed as a function of the temperature in the area of the precatalyst T_cat and of the state of charging of the particulate filter. Since this process operates with especially high efficiency in heretofore critical short-distance operation of diesel internal combustion engines, the strict requirements of future legislation relating to exhaust gas emissions can immediately be met.