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:
Jul. 22, 2025
Filed:
Jun. 12, 2024
Volkswagen Aktiengesellschaft, Wolfsburg, DE;
Dimitri Illarionov, Neuburg an der Donau, DE;
Lea Maria Lamminger, Braunschweig, DE;
Lars Stratmann, Brome, DE;
Christian Steinbrecher, Wismar, DE;
Volkswagen Aktiengesellschaft, Wolfsburg, DE;
Abstract
A method for monitoring a particulate filter in an exhaust system of an internal combustion engine. A loading of the particulate filter is determined by a differential pressure measurement between the inlet of the particulate filter and the outlet of the particulate filter. A loading of the particulate filter is modeled by a soot loading model for the particulate filter. A regeneration of the particulate filter is initiated and the particle removal is compared from the particulate filter determined through the differential pressure measurement with the particle removal modeled by the soot loading model. A fault message is initiated if a difference between the calculated particle removal and the measured particle removal exceeds a threshold value. An internal combustion engine having a control unit and an exhaust system for carrying out such a method are also provided.