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. 08, 2022
Filed:
May. 19, 2020
Applicant:
Denso International America, Inc., Southfield, MI (US);
Inventor:
Edward Szczepanski, Grosse Pointe Farms, MI (US);
Assignee:
DENSO INTERNATIONAL AMERICA, INC., Southfield, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/20 (2006.01); F01N 11/00 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2013 (2013.01); F01N 11/002 (2013.01); F01N 11/007 (2013.01); F01N 2230/04 (2013.01); F01N 2240/16 (2013.01); F01N 2550/22 (2013.01); F01N 2560/025 (2013.01); F01N 2560/06 (2013.01); F01N 2900/0602 (2013.01); F01N 2900/1602 (2013.01); F01N 2900/1624 (2013.01);
Abstract
A method includes providing electric power to an electrically heated catalyst of an exhaust aftertreatment system. The method includes obtaining an impedance value of the electrically heated catalyst in response to providing the electric power. The method includes determining an oxygen storage capacity of the electrically heated catalyst based on the impedance value.