Method for operating combustion engine, involves predetermining tolerance time point, tolerance time duration and tolerance amount of reducing agent dependent on actually determined total service performance of combustion engine

摘要

The method involves predetermining the tolerance time point, tolerance time duration and the tolerance amount of a reducing agent dependent on the actually determined total service performance of a combustion engine. An exhaust gas system of the combustion engine is supplied in frame of a reduction in pollutants, particularly a nitrogen oxide reduction, and upstream of exhaust-gas aftertreatment element, particularly a nitrogen oxide storage catalyst or a selective catalytic reduction catalyst during a regeneration area to define a defined amount of a reducing agent.