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.:

US 9389144 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 12, 2016

Filed:

Sep. 13, 2013
Applicants:

Hyundai Motor Company, Seoul, KR;

Kia Motors Corp., Seoul, KR;

Inventor:

Seung Hee Han, Suwon-si, KR;

Assignees:

Hyundai Motor Company, Seoul, KR;

Kia Motors Corp., Seoul, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); G01M 15/00 (2006.01); G01M 15/10 (2006.01);
U.S. Cl.
CPC ...
G01M 15/102 (2013.01); F02M 26/49 (2016.02); F02D 2041/0067 (2013.01);
Abstract

A method for diagnosing an exhaust gas recirculation (EGR) system includes: a setting step of setting a temperature map with respect to a temperature at an outlet side of an EGR line for an output value reflecting a driving state of a vehicle in a state in which an EGR valve is closed; a measuring step of measuring the temperature at the outlet side of the EGR line at the time of an operation of the EGR system; and a diagnosing step of diagnosing that a fault has been generated in an EGR system when the measured temperature at the outlet side of the EGR line is equal to or less than a reference value set in the temperature map.


Find Patent Forward Citations

Han, Seung. (2016). Method for diagnosing egr system (U.S. Patent No. 9389144). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9389144

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