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. 29, 2020
Filed:
Jun. 19, 2019
Applicant:
Delphi Technologies Ip Limited, St. Michael, BB;
Inventors:
Seyed R. Zarabadi, Kokomo, IN (US);
Daniel C. Penrod, Russiaville, IN (US);
Mark W. Gose, Kokomo, IN (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/00 (2006.01); G01R 31/02 (2006.01); G01R 1/20 (2006.01); G01R 17/02 (2006.01); G01R 31/50 (2020.01); G01R 31/08 (2020.01); F02D 41/14 (2006.01); F02D 41/22 (2006.01); F02D 41/20 (2006.01);
U.S. Cl.
CPC ...
G01R 31/50 (2020.01); F02D 41/1456 (2013.01); F02D 41/1495 (2013.01); F02D 41/222 (2013.01); G01R 1/203 (2013.01); G01R 17/02 (2013.01); G01R 31/08 (2013.01); F02D 2041/2093 (2013.01); G01R 31/006 (2013.01); Y02T 10/40 (2013.01);
Abstract
A method is proved for pinpointing a short-circuit in a wide-range air/fuel sensor having one or more sensor-terminals that include a reference-terminal, a pump-terminal, a return-terminal, and a tag-terminal. The method includes controlling a connection of a source of electric current to the one or more sensor-terminals; determining one or more status-values based on signals present at the sensor-terminals; and determining a sensor-status of the wide-range air/fuel sensor based on the connection of source of electric current and the one or more status-values.