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:
Jul. 16, 2019
Filed:
Jul. 20, 2016
Applicant:
Audi Ag, Ingolstadt, DE;
Inventor:
Bodo Odendall, Lenting, DE;
Assignee:
Audi AG, Ingolstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 11/00 (2006.01); F02D 41/14 (2006.01); F02D 41/22 (2006.01); G01M 15/10 (2006.01);
U.S. Cl.
CPC ...
F01N 11/002 (2013.01); F02D 41/1494 (2013.01); F02D 41/1495 (2013.01); F02D 41/222 (2013.01); G01M 15/102 (2013.01); F01N 2560/20 (2013.01); Y02T 10/40 (2013.01);
Abstract
In a method of operating a drive device, a probe temperature of an exhaust gas exhaust gas probe in an exhaust tract is measured, as the exhaust gas probe is heated by a probe heater. A temperature growth value representative of an increase in temperature of the exhaust gas probe is determined during heating of the exhaust gas probe, and the presence of a defect of the probe heater is recognized, when the temperature growth value deviates from an input value.