METHOD FOR ASCERTAINING THE STATE OF LOAD OF AN SCR CATALYST, AND SCR CATALYST DEVICE

The invention relates to a method and an SCR catalyst device for ascertaining the state of load of an SCR catalyst (110) located in an exhaust system of an internal combustion engine. The method of the invention involves acquiring the hydrogen concentration in the exhaust gas of the internal combust...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DREHER, Marian, KOLBECK, Sabrina, REITMEIER, Torsten
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a method and an SCR catalyst device for ascertaining the state of load of an SCR catalyst (110) located in an exhaust system of an internal combustion engine. The method of the invention involves acquiring the hydrogen concentration in the exhaust gas of the internal combustion engine downstream of the SCR catalyst (110) and ascertaining the state of load of the SCR catalyst (110) at least in part on the basis of the acquired hydrogen concentration in the exhaust gas of the internal combustion engine.