Internal combustion engine operating method for motor vehicle, involves determining nitrogen oxide quantity as oxide-raw mixture flow in connection to oxide-regeneration medium quantity during meager operating range at exhaust gas mass flow

摘要

The method involves determining nitrogen oxide-regeneration medium quantity required for the regeneration of a nitrogen oxide accumulator during a regeneration time. An oxygen accumulator is loaded at the end of a meager operating range. The nitrogen oxide quantity is determined as nitrogen oxide-raw mixture flow in connection to the nitrogen oxide-regeneration medium quantity during the preceding range at the exhaust gas mass flow.