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:
Jan. 09, 2018
Filed:
Dec. 02, 2014
Applicant:
Hyundai Motor Company, Seoul, KR;
Inventors:
Dong Jun Lee, Suwon-si, KR;
Won Kyoung Choi, Hwaseong-si, KR;
Assignee:
HYUNDAI MOTOR COMPANY, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/00 (2006.01); G01R 31/40 (2014.01); G01R 31/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/40 (2013.01); G01R 31/007 (2013.01);
Abstract
A method of diagnosing a fault by using impedance of an output terminal of a power supply device for an environmentally-friendly vehicle is provided. The method estimates impedance of the output terminal of the power supply device and diagnoses a fault by using the estimated impedance, thereby preventing an auxiliary battery from being discharged. Whether or not the fault is generated according to the impedance when the estimated impedance exceeds a reference value is determined.