Method for operating an exhaust gas aftertreatment system of an internal combustion engine, an exhaust gas aftertreatment system for an internal combustion engine, and an internal combustion engine comprising such an exhaust gas aftertreatment system
A technology of exhaust gas after-treatment and internal combustion engine, which is applied in the direction of electronic control of exhaust treatment device, diagnostic device of exhaust treatment device, exhaust treatment, etc., which can solve the problems of high cost, reduced fuel efficiency, and space consumption.
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[0046] figure 1 A schematic illustration of an exemplary embodiment of an internal combustion engine 1 with an exhaust gas aftertreatment system 3 with an exhaust gas path 5 is shown, wherein an SCR catalytic converter 7 is arranged in the exhaust gas path 5 , the SCR- The catalytic converter has an SCR catalytic converter material, wherein the exhaust gas aftertreatment system 3 also has a reducing agent metering device 9 which is provided for feeding a reducing agent, in particular ammonia or an ammonia precursor product, in particular urea - The water solution is metered into the exhaust gas path 5 upstream of the SCR catalytic converter 7 . Furthermore, the exhaust gas aftertreatment system 3 has at least one detection device 11 (here: a plurality of detection devices 11 ) for detecting at least one operating parameter (here: in particular for detecting a plurality of operating parameters), In this case, at least one operating parameter is related to the oxidation state o...
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