Adapting dosage of reagent for introduction into combustion engine exhaust gas region involves comparing desired, measured temperatures, providing regulated dosing signal to eliminate temperature deviation using control error time average

摘要

The method involves pilot controller producing controlled reagent dosing signal depending on a desired temperature using a functional relationship (33). A regulator compares the desired temperature with the measured temperature, provides a regulated dosing signal to eliminate a temperature deviation using a time average of a measure of the control error, with the time exceeding the system dynamic, and provides an adaptation signal if the mean value is non-zero.. An independent claim is also included for the following: (A) a device for adapting the dosage of a reagent for introduction into an internal combustion engine's exhaust gas region (B) a computer program fort implementing the inventive method (C) and a computer program product.