Method of operating a system comprising a diesel engine and catalyst for exhaust gas purification
AssigneeUmicore AG & Co. KG
InventorsJurgen Gieshoff, Martin Votsmeir, Stephan Malmberg, Egbert Lox, Thomas Kreuzer
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Abstract
The invention relates to a method and an apparatus of operating a drive system comprising an engine and an exhaust gas purification unit containing a catalyst, where the engine emits an exhaust gas having an exhaust gas temperature and the catalyst has a catalytic activity for the purification of the exhaust gas. In the method, an aging-induced decrease in the catalytic activity of the catalyst is compensated at least part of the time by increasing the exhaust gas temperature of the engine.
Claims4
A method of operating a drive system comprising an engine and an exhaust gas purification unit containing a catalyst, where the engine emits an exhaust gas having an exhaust gas temperature and the catalyst has a catalytic activity for the purification of the exhaust gas, wherein an aging-induced decrease in the catalytic activity of the catalyst is compensated at least part of the time by increasing the exhaust gas temperature of the engine.
Dependencies are inferred from the claim text.