Method and Apparatus for Estimating a Dosing-Error in a Selective Catalytic Reduction System

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United States of America Patent

APP PUB NO 20150143884A1
SERIAL NO

14403090

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Abstract

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A method for determining if a selective catalytic reduction (SCR) device that is dosed with a reductant is being mis-dosed by considering an expected exhaust gas output state from the SCR device and measured exhaust gas output state, a NOx sensor sensitivity figure that is an indication of how sensitive the measured exhaust gas output state is to dosing errors and performing cross-correlation operations.

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Patent Owner(s)

Patent OwnerAddress
PERKINS ENGINES COMPANY LIMITEDFRANK PERKINS WAY EASTFIELD PETERBOROUGH PE1 5FQ

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Heaton, David Cambridgeshire, GB 8 97
Maass, Bastian Geinsheim, DE 2 8
Soumelidis, Michail Essex, GB 1 2
Steffen, Thomas Leicestershire, GB 25 1740

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges6331548144211101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6081 - 90100 +020406080100120140160180200220240260280300320340

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