A method for operating a direct-injection internal combustion engine with at least one exhaust gas aftertreatment system

摘要

A method for operating a direct-injection internal combustion engine with at least one exhaust gas aftertreatment system, the both for operation in a ltc - mode as well as for operation in a consumption-optimized lean - mode is suitable, characterised in that, proceeding from an operation of the internal combustion engine in the lean - mode a transfer of the internal combustion engine in the ltc - mode is made, if the dilution of oil x_dilution a predeterminable value x_{dilution, max} with x exceeds_dilution x_{dilution, max}, and again into the lean - mode is converted, if the dilution of oil a predeterminable value x_{dilution, min} achieved with x_dilution ≤ x_{dilution, min}.