METHOD FOR MONITORING THE CONVERSION SUCCESS OF POLLUTANTS IN AN EXHAUST GAS POST-PROCESSING SYSTEM

摘要

A method for monitoring a pollutant conversion capacity of a catalytically coated, oxidizing exhaust gas after-treatment component in an exhaust gas system of an internal combustion engine, wherein a capacity of the catalytic coating of the exhaust gas after-treatment component for oxidizing NO to NO2 is ascertained from the degree of efficiency of a downstream SCR catalytic converter, characterized in that operating conditions for said exhaust gas after-treatment component are set such that the effects on the SCR catalytic converter are maximized.