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:
May. 31, 2022
Filed:
May. 11, 2020
Method for operating a particulate filter in an exhaust aftertreatment system of a combustion engine
Robert Bosch Gmbh, Stuttgart, DE;
Alexandre Wagner, Stuttgart, DE;
Benedikt Alt, Rutesheim, DE;
Fabian Straub, Deutschland, DE;
Thomas Baumann, Kornwestheim, DE;
Christoph Schweizer, Tamm, DE;
Michael Drung, Muehlacker, DE;
Oliver Krannich, Tamm, DE;
Rainer Maier, Stuttgart, DE;
Tobias Zolg, Bermatingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for the operation of a particulate filter in an exhaust aftertreatment system of a combustion engine () with the following steps: set up () a pressure difference model, which models a measured pressure difference (Δp) which drops across the particulate filter () as a function () of a volume flow ({dot over (V)}) through the particulate filter () with an offset value (a, C); measure () multiple measurement values () for the pressure difference (Δp) at different volume flows ({dot over (V)}) and solve () the pressure difference model as a function of the pressure difference (Δp), whereby the offset value (a, C) is also determined.