Method and system for exhaust cleaning

摘要

A method pertaining to regeneration of a particle filter (202) pertaining to a combustion process, which filter is arranged to treat exhaust gases arising from combustion in a combustion engine (101). When at least one measure for raising the temperature of the particle filter (202) is activated, determining a temperature for the particle filter (202), comparing the temperature determined with a first temperature and discontinuing the measure for raising the temperature of the particle filter (202) when the temperature determined is below the first temperature.

主权项

1. A method pertaining to regeneration of a particle filter pertaining to a combustion process, wherein the filter is arranged to treat exhaust gases arising from combustion in a combustion engine, the method comprising:
(a) a first activating of at least one step to raise the temperature of said particle filter; (b) determining a temperature Tfilter of said particle filter; (c) comparing said determined temperature Tfilter with a first temperature Tlimit1; d) when said determined temperature Tfilter is below said first temperature Tlimit1, discontinuing said step to raise the temperature of said particle filter; and (e) a second activating of at least one step to raise the temperature of said particle filter when said temperature Tfilter of said filter exceeds a second temperature limit Tlimit2 which is higher than said first temperature Tlimit1 after said step for raising temperature of said particle filter has been discontinued.