A method for regenerating a diesel particulate filter (10) in the exhaust
gas system of a diesel engine (5) is disclosed in which particulate matter
is burned by increasing the temperature in the diesel particulate filter
(10). Regeneration is carried out in a coordinated manner by:
switching on electrical loads;
at least partially closing the EGR valve, while adapting the pilot
injection to prevent combustion noise exceeding an acceptable level;
discontinuing feedback of boost pressure control via variable turbine
geometry, when such feedback is present;
restricting the fresh air supply to provide a desired intake pressure
(depends on the speed and load);
lessening the intake restriction to increase the intake pressure when the
operator demands increased power or when the air/fuel ratio falls below a
predetermined minimum value;
increasing fuel supply as a function of the intake pressure, the pedal
position and/or the engine speed when the fuel supply is not automatically
controlled in some other way; and
injecting post fuel during the expansion stroke when operating temperature
of catalytic converter has been reached.