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. 08, 2019
Filed:
Jul. 28, 2017
Applicant:
Audi Ag, Ingolstadt, DE;
Inventor:
Bodo Odendall, Lenting, DE;
Assignee:
AUDI AG, Ingolstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/14 (2006.01); F02D 41/02 (2006.01); F02D 41/24 (2006.01); F01N 11/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/1441 (2013.01); F01N 11/007 (2013.01); F02D 41/0295 (2013.01); F02D 41/1454 (2013.01); F02D 41/2474 (2013.01); F01N 2550/02 (2013.01); F01N 2560/025 (2013.01); F01N 2560/14 (2013.01); F02D 2200/0814 (2013.01);
Abstract
A method for operating a drive device with a drive unit and an exhaust gas purification device. The gas exhaust purification device is provided with a catalytic converter through which an exhaust gas stream can flow, as well as with a first lambda sensor arranged upstream of the catalytic converter in the exhaust gas stream and with a second lambda sensor arranged downstream of the catalytic converter in the exhaust gas stream, wherein an oxygen filling value of an oxygen storage device of the catalytic converter is determined on the basis of a first lambda signal provided by the first lambda signal sensor as well as an offset value.