METHOD FOR DIAGNOSING A CATALYTIC DEVICE OF AN ENGINE EXHAUST GAS AFTER-TREATMENT SYSTEM

A method is provided for estimating an aging index of the catalytic device. There estimation of the aging index includes, but is not limited to determining the catalytic device operating temperature, determining an aging factor as a function of at least the determined operating temperature, determin...

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Bibliographische Detailangaben
Hauptverfasser:	SACCO NICOLA, ZANETTI IGOR, CHIANALE ALESSANDRA
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CALCULATING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MEASURING MECHANICAL ENGINEERING PHYSICS STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	A method is provided for estimating an aging index of the catalytic device. There estimation of the aging index includes, but is not limited to determining the catalytic device operating temperature, determining an aging factor as a function of at least the determined operating temperature, determining the time period spent by the catalytic device at the determined operating temperature, calculating a contributing aging coefficient as a function of the aging factor and the time period, and increasing a cumulative aging parameter by adding the contributing aging coefficient.