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. 17, 2026
Filed:
Sep. 28, 2022
Applicant:
Audi Ag, Ingolstadt, DE;
Inventor:
Bodo Odendall, Lenting, DE;
Assignee:
AUDI AG, Ingolstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); F01N 9/00 (2006.01);
U.S. Cl.
CPC ...
F01N 3/20 (2013.01); F01N 9/00 (2013.01); F01N 2560/025 (2013.01); F01N 2900/1624 (2013.01);
Abstract
A method for operating a drive device which has a drive unit that generates exhaust gas and an exhaust gas aftertreatment device for aftertreatment of the exhaust gas. A composition of a fuel-air mixture used for operating the drive unit is determined at least temporarily by a lambda control based on a first measured value of a first lambda sensor arranged upstream of the exhaust gas aftertreatment device and based on a second measured value of a second lambda sensor arranged downstream of the exhaust gas aftertreatment device.