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:
Oct. 05, 2021
Filed:
Dec. 17, 2019
Vitesco Technologies Gmbh, Hannover, DE;
Vitesco Technologies GmbH, Hannover, DE;
Abstract
Determining the presence of a particle filter in the exhaust gas tract of an engine, with the steps of determining a first exhaust gas temperature curve which occurs in the exhaust gas tract upstream of the particle filter; measuring a second exhaust gas temperature curve by a first temperature sensor arranged downstream of the particle filter; determining a first heat quantity by integration over a specific time of a first heat flow curve determined by a first exhaust gas mass flow, a first specific heat capacity and the first exhaust gas temperature curve; determining a second heat quantity by integration over the specific time of a second heat flow curve determined by a second exhaust gas mass flow, a second specific heat capacity and the second exhaust gas temperature curve, evaluating the first heat quantity and the second heat quantity to determine the presence of the correct particle filter.