US Patent 8631690 Exhaust treatment methods and systems
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Patent abstract
A control method for monitoring a selective catalytic reduction (“SCR”) device is provided. A control method includes adjusting an existing efficiency threshold based on a dosing adaptation value to determine an efficiency threshold. The dosing adaptation value represents an adjusted value of a supply of reductant based on a determined deviation of a downstream NOx concentration value to an expected NOx concentration. The control method includes comparing the efficiency threshold with a determined efficiency of the SCR device. The control method includes generating a message based on comparing the efficiency threshold with the determined efficiency of the SCR device.
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Patent Inventor Names
Janean E. Kowalkowski0
John Coppola0
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US Patent 08631690 Exhaust treatment methods and systems US Patent 8631690 Exhaust treatment methods and systems
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Patent Number
086316900
Patent Number
86316900
Edits on 24 Sep, 2022
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Patent Jurisdiction
Patent Number
086316900
Date of Patent
January 21, 2014
0Patent Application Number
135962450
Date Filed
August 28, 2012
0Patent Primary Examiner
Edits on 21 Dec, 2021
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US Patent 08631690 Exhaust treatment methods and systems
Infobox
Is a
Patent jurisdiction
Patent number
08631690
Date of patent
January 21, 2014
Patent application number
13596245
Date Filed
August 28, 2012
Patent primary examiner
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