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:
Mar. 07, 2023
Filed:
Jun. 15, 2021
Applicant:
Cummins Inc., Columbus, IN (US);
Inventors:
Marten H. Dane, Columbus, IN (US);
J. Steven Kolhouse, Columbus, IN (US);
Thomas M. Yonushonis, Columbus, IN (US);
J. Stephen Wills, Columbus, IN (US);
Samuel C. Geckler, Columbus, IN (US);
Assignee:
Cummins Inc., Columbus, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F02B 29/04 (2006.01); F02M 26/06 (2016.01); F02M 26/15 (2016.01); F02M 26/28 (2016.01); F02M 26/33 (2016.01); F02D 41/04 (2006.01); F02D 13/02 (2006.01); F02M 45/02 (2006.01); F02M 26/25 (2016.01); F02M 26/27 (2016.01); F02M 26/24 (2016.01); F02D 9/04 (2006.01); F02D 35/02 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0065 (2013.01); F02B 29/0418 (2013.01); F02B 29/0425 (2013.01); F02B 29/0437 (2013.01); F02B 29/0493 (2013.01); F02D 13/0238 (2013.01); F02D 13/0261 (2013.01); F02D 41/0007 (2013.01); F02D 41/04 (2013.01); F02M 26/06 (2016.02); F02M 26/15 (2016.02); F02M 26/24 (2016.02); F02M 26/25 (2016.02); F02M 26/27 (2016.02); F02M 26/28 (2016.02); F02M 26/33 (2016.02); F02M 45/02 (2013.01); F01N 2240/36 (2013.01); F02D 9/04 (2013.01); F02D 35/027 (2013.01); F02D 2041/001 (2013.01); F02D 2041/0067 (2013.01); F02D 2200/0402 (2013.01); Y02T 10/12 (2013.01); Y02T 10/40 (2013.01);
Abstract
A method includes operating a spark ignition engine and flowing low pressure exhaust gas recirculation (EGR) from an exhaust to an inlet of the spark ignition engine. The method includes interpreting a parameter affecting an operation of the spark ignition engine, and determining a knock index value in response to the parameter. The method further includes reducing a likelihood of engine knock in response to the knock index value exceeding a knock threshold value.