Verfahren zur Überprüfung der Funktion von Katalysatoren in Brennkraftmaschinen

摘要

The invention relates to a method for monitoring the function of catalysts in internal combustion engines according to which similar operational states (bz) are determined on the basis of operational parameters of the internal combustion engine already detected. According to the inventive method, a statistically proven average exhaust gas value (agmw) is calculated on the basis of a defined number of measured exhaust gas values (agw) during a similar operational state. Said average value is compared with a permissible exhaust gas value that is stored for said operational state. If the detected exhaust gas value deviates from the permissible exhaust gas value (agwsp), a dysfunction of the catalyst is recognized.