Method for simulating state of aging of exhaust line in internal combustion engine of car, involves diluting gaseous ammonia fed to selective catalytic reduction member on particle filter with gas, to simulate state of aging of exhaust line

摘要

The method involves diluting gaseous ammonia fed to a nitrogen oxide processing unit i.e. selective catalytic reduction member on a particle filter (26) with a gas, so as to simulate a state of aging of an exhaust line (28), where the ammonia gas is diluted with the gas selected from nitrogen, air, and inert gas in contact with the gaseous ammonia. A dilution rate of the ammonia gas is determined based on a data set associated with a dilution rate in the state of aging of the exhaust line. An independent claim is also included for a device for simulating a state of aging of an exhaust line of a car.