The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 2025
Filed:
Jun. 10, 2024
Volkswagen Aktiengesellschaft, Wolfsburg, DE;
Lea Maria Lamminger, Braunschweig, DE;
Dimitri Illarionov, Neuburg an der Donau, DE;
Lars Stratmann, Brome, DE;
Christian Steinbrecher, Wismar, DE;
Volkswagen Aktiengesellschaft, Wolfsburg, DE;
Abstract
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.