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:
Dec. 31, 2024
Filed:
May. 11, 2022
Applicant:
Vitesco Technologies Gmbh, Regensburg, DE;
Inventors:
Sylvain Sirop, Toulouse, FR;
Stéphan Vales, Toulouse, FR;
Assignee:
VITESCO TECHNOLOGIES GBMH, Regensburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 11/00 (2006.01); F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
F01N 11/00 (2013.01); F01N 3/2066 (2013.01); F01N 3/208 (2013.01); F01N 2550/05 (2013.01); F01N 2610/02 (2013.01); F01N 2610/1453 (2013.01); F01N 2610/1493 (2013.01); F01N 2900/0422 (2013.01); F01N 2900/08 (2013.01); F01N 2900/1806 (2013.01); F01N 2900/1808 (2013.01); F01N 2900/1822 (2013.01);
Abstract
A method for identifying a fault in the injection of urea into an exhaust line of a vehicle fitted with an internal combustion engine, the method having the following steps: calculating a ratio between a measured filling time and a flushing time of a urea line, the calculation being carried out by a urea injection control unit; comparing the calculated ratio to a reference ratio by the urea injection control unit; if the calculated ratio is different than the reference ratio, identifying a urea injection fault in the urea line by the urea injection control unit.