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AssigneeTechnische UniversitäT Dresden
InventorsRobert Walter, Tilo Ross, Hans Zellbeck
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The invention relates to a method for operating an internal combustion engine installed in a vehicle, in particular a diesel engine, in which the instantaneous concentration of a pollutant contained in the exhaust gas, in particular the NOx concentration in the exhaust gas, is measured or calculated in the flow direction after an exhaust gas aftertreatment. Using the determined pollutant concentration, the predefined distance- and/or power-based compliance with pollutant limiting values in mg/km or mg/kWh are monitored by means of specifically influencing the operating parameters of the internal combustion engine and/or an exhaust gas after treatment system in regulated form.
A method for regulating an internal combustion engine installed in a vehicle, wherein the method comprises the steps of evaluating with an engine control system an instantaneous pollutant concentration contained in exhaust gas, in the flow direction after an exhaust gas aftertreatment and, monitoring a predefined distance of travel based compliance with pollutant limiting values in mg/km, and specifically regulating operating parameters of the internal combustion engine or an exhaust gas aftertreatment system based on the instantaneous pollutant concentration so that a limiting value is cumulatively adhered to across a specified minimum distance of travel.
Dependencies are inferred from the claim text.