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:
Mar. 02, 2021
Filed:
Jun. 12, 2018
Daimler Ag, Stuttgart, DE;
Klaus Wunderlich, Waiblingen, DE;
Werner Sauter, Fellbach, DE;
Rosario Pepe, Stuttgart, DE;
Michael Scholz, Sindelfingen, DE;
Judith Baehr, Nuertingen, DE;
Julius Schwaab, Stuttgart, DE;
Ramakrishnan Rajagopal, Sindelfingen, DE;
Daimler AG, Stuttgart, DE;
Abstract
In a method for assessing a condition of a particulate filter for use in an internal combustion engine of a motor vehicle, a difference between a pressure exerted on the input side of the particulate filter and a pressure exerted on the output side of the particulate filter is recorded by a differential pressure sensor. The difference in pressure is taken into account when assessing the condition. Furthermore, the pressure exerted on the output side of the particulate filter in relation to the atmospheric pressure is recorded by a relative pressure sensor. When assessing the condition of the particulate filter, the pressure recorded by the relative pressure sensor is also taken into account. A frequency of changes in pressure and/or an amplitude load of the pressure is assessed. The invention also relates to an exhaust system for a motor vehicle.