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:
Jan. 03, 2017
Filed:
Jun. 18, 2015
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Michael Brendan Hopka, Milford, MI (US);
William Russell Goodwin, Farmington Hills, MI (US);
Michiel J. Van Nieuwstadt, Ann Arbor, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
F01N 11/00 (2006.01); F01N 3/025 (2006.01); F02D 41/30 (2006.01); F02D 41/00 (2006.01); F01N 9/00 (2006.01); F01N 3/023 (2006.01); F01N 3/021 (2006.01); B01D 46/00 (2006.01); F02D 41/14 (2006.01); F02D 41/22 (2006.01);
U.S. Cl.
CPC ...
F01N 3/025 (2013.01); F01N 11/00 (2013.01); F02D 41/0002 (2013.01); F02D 41/30 (2013.01); B01D 46/0086 (2013.01); F01N 3/021 (2013.01); F01N 3/023 (2013.01); F01N 9/002 (2013.01); F01N 2430/00 (2013.01); F01N 2550/04 (2013.01); F01N 2560/05 (2013.01); F01N 2560/20 (2013.01); F01N 2900/0416 (2013.01); F01N 2900/0418 (2013.01); F01N 2900/0421 (2013.01); F01N 2900/0422 (2013.01); F01N 2900/1606 (2013.01); F02D 41/1494 (2013.01); F02D 2041/227 (2013.01); F02D 2041/228 (2013.01); F02D 2200/0812 (2013.01); Y02T 10/47 (2013.01); Y02T 10/54 (2013.01);
Abstract
Methods and systems are provided for detecting leaks in a diesel particulate filter (DPF). In one example, a faster leak detection routine may be performed during a single drive cycle to detect large leaks in the DPF. However, if there are no large leaks in the DPF, a slower leak detection may be performed over a plurality of drive cycles, to detected smaller leaks in the DPF.