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:
Sep. 03, 2019
Filed:
Jul. 20, 2017
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Michael A. Smith, Clarkston, MI (US);
Luca Lauritano, Turin, IT;
Luis Daniel Guerrero Cruz, Turin, IT;
Claudio Ciaravino, Turin, IT;
Gongshin Qi, Troy, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/08 (2006.01); C01B 39/02 (2006.01); F01N 3/029 (2006.01); F02D 41/02 (2006.01);
U.S. Cl.
CPC ...
F01N 3/0814 (2013.01); F01N 3/0293 (2013.01); F02D 41/0235 (2013.01); C01B 39/02 (2013.01);
Abstract
A method of adjusting reductant injection for a selective catalyst reduction device with a soot filter (SCRF) includes calculating, through a processor, an amount of soot in the SCRF, determining, through the processor, a shrinking core model of the SCRF based on the amount of soot, calculating, with the processor using the shrinking core model, an amount of reductant to inject into the SCRF, and injecting the amount of reductant into the SCRF.