Method for monitoring regeneration of a particulate filter in the exhaust gas system of an internal combustion engine

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United States of America Patent

PATENT NO 12203400
APP PUB NO 20240410308A1
SERIAL NO

18739208

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Abstract

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Regeneration monitoring of a particulate filter in an exhaust gas system of an internal combustion engine of a motor vehicle. Different soot loading stages for the particulate filter are defined. A soot loading of the particulate filter is determined by use of a soot loading model. A soot loading of the particulate filter via a differential pressure measurement across the particulate filter is determined. A regeneration of the particulate filter is initiated when a certain soot loading stage of the particulate filter is reached. A soot discharge from the particulate filter is compared, expected via the soot loading model, to a soot discharge from the particulate filter that is determined via a differential pressure measurement. An error message is outputted when a regeneration stage of the particulate filter, determined by the soot loading model, does not correlate with a regeneration stage that is determined via the differential pressure measurement.

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Patent Owner(s)

  • VOLKSWAGEN AKTIENGESELLSCHAFT

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Illarionov, Dimitri Neuburg an der Donau, DE 2 0
Lamminger, Lea Maria Braunschweig, DE 2 0
Steinbrecher, Christian Wismar, DE 7 11
Stratmann, Lars Brome, DE 3 4

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