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.

Date of Patent:
Oct. 20, 2020

Filed:

Jul. 03, 2018
Applicants:

Mark a Shost, Northville, MI (US);

John D Phillips, Brighton, MI (US);

Cornelius Opris, Oxford, MI (US);

Arpit Shukla, Royal Oak, MI (US);

Inventors:

Mark A Shost, Northville, MI (US);

John D Phillips, Brighton, MI (US);

Cornelius Opris, Oxford, MI (US);

Arpit Shukla, Royal Oak, MI (US);

Assignee:

FCA US LLC, Auburn Hills, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); B01D 53/90 (2006.01); B01D 53/94 (2006.01); F01N 11/00 (2006.01);
U.S. Cl.
CPC ...
F01N 3/208 (2013.01); B01D 53/90 (2013.01); B01D 53/9495 (2013.01); F01N 11/00 (2013.01); B01D 2251/2067 (2013.01); B01D 2257/404 (2013.01); F01N 2560/026 (2013.01); F01N 2560/14 (2013.01); F01N 2610/02 (2013.01); F01N 2900/0416 (2013.01); F01N 2900/1402 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1622 (2013.01); F01N 2900/1818 (2013.01);
Abstract

Improved systems and methods for dosing agent injection adaptation for a selective catalytic reduction (SCR) system of an engine of a vehicle involve an adaptation procedure that is generally divided into distinct phases based upon the requirement to obtain an accurate dosing adaptation. The phases themselves provide the specific functions of catalyst ammonia storage depletion, catalyst ammonia storage and NOx conversion stabilization, and adaptation value factor determination and verification.


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