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. 29, 2022
Filed:
May. 08, 2020
Applicant:
Denso International America, Inc., Southfield, MI (US);
Inventors:
Edward Szczepanski, Grosse Pointe Farms, MI (US);
William Leismer, Madison Heights, MI (US);
Assignee:
DENSO International America, Inc., Southfield, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/02 (2006.01); F01N 3/20 (2006.01); F01N 9/00 (2006.01); F01N 3/021 (2006.01);
U.S. Cl.
CPC ...
F01N 9/00 (2013.01); F01N 3/021 (2013.01); F01N 3/2013 (2013.01); F01N 2900/08 (2013.01); F01N 2900/10 (2013.01); F01N 2900/1402 (2013.01); F01N 2900/1411 (2013.01); F01N 2900/16 (2013.01);
Abstract
A method includes providing electric power to an exhaust aftertreatment system component, where the exhaust aftertreatment system component is one of a particulate filter and an electrically heated catalyst. The method includes obtaining an impedance value of the exhaust aftertreatment system component in response to providing the electric power. The method includes determining a structural state of the exhaust aftertreatment system component based on the impedance value.