Verfahren zum Betreiben eines Stickoxidsensors

Die Erfindung betrifft ein Verfahren zum Betreiben eines Stickoxidsensors (14) zum Erfassen von in Abgas einer Verbrennungskraftmaschine enthaltenem Stickoxid, bei welchem eine elektronische Recheneinrichtung (16) dazu ausgebildet ist, ein von dem Stickoxidsensor (14) bereitstellbares und das mittels des Stickoxidsensors (14) erfasste Stickoxid charakterisierendes Signal zu empfangen. A method for operating a nitrogen oxide sensor of an internal combustion engine. When, for a number greater than 1 of operating cycles each including exactly two directly consecutive periods of time, where during a respective first of the periods of time the engine is in fired operation and during the respective second period of time a fired operation of the engine ceases, it is determined that an arithmetic mean of the first periods of time is less than a first threshold value and an arithmetic mean of the second periods of time is less than a second threshold value, a special overrun operating state of a computer is set, where after deactivation of the engine, the computer is kept activated in the special overrun operating state for a longer overrun period, where the nitrogen oxide sensor is kept in a state of operating readiness during the overrun period.