METHOD FOR CLEANING A PARTICLE FILTER AND A VEHICLE FOR UTILIZING SAID METHOD

摘要

Method and arrangement for regenerating a particle filter ( 15 ) arranged in thermal proximity to a catalyst unit ( 16 ) in an exhaust duct ( 10 ) connected to an internal combustion engine ( 2 ). The particle filter is located downstream of an adjustable exhaust pressure regulator ( 20 ) for regulating an exhaust flow through the exhaust duct. When the internal combustion engine is driven at low engine load, the exhaust pressure regulator ( 20 ) is activated with a predetermined regulating pressure. Fuel is then supplied to the exhaust duct ( 10 ) by means of an injection unit, the catalyst unit ( 16 ) being exposed to the fuel, which is oxidized, and the particle filter ( 15 ) being heated to such a temperature that soot particles are converted into carbon dioxide in reaction with oxygen contained in the exhaust flow.