method for controlling a device for the treatment of exhaust gases from a brennkraftmaschine

摘要

The method involves introducing a reformate from a reformer e.g. water vapor reformer, with an exhaust gas in upstream of a nitrogen oxide trap (3) for obtaining a preset setting temperature of heated gas in upstream of a particle filter (4) to regenerate the filter. A calculated reformate rate is determined based on the temperature. A space coefficient is determined based on a difference between the temperature and a temperature (Tmes) measured in upstream of the filter. The reformer is controlled with a reformate setting rate (Qref-cons) based on the coefficient and the reformate rate.