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. 16, 2021
Filed:
Oct. 16, 2019
Applicants:
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Inventors:
Ho Joon Shin, Gyeonggi-do, KR;
Nam Koo Han, Gyeonggi-do, KR;
Sang Yoo Lee, Seoul, KR;
Heon Young Kwak, Gyeonggi-do, KR;
Hong Geuk Park, Chungcheongnam-do, KR;
Assignees:
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/02 (2006.01); G01R 31/327 (2006.01); B60L 53/22 (2019.01); B60L 53/62 (2019.01); B60L 3/00 (2019.01);
U.S. Cl.
CPC ...
G01R 31/3274 (2013.01); B60L 3/0069 (2013.01); B60L 53/22 (2019.02); B60L 53/62 (2019.02);
Abstract
A system for diagnosing switching element selectively connecting Y-capacitors to ground is provided. The state of a switching device in a power conversion circuit is adjusted such that voltages of different levels are applied to the Y-capacitors, respectively. Therefore, a Y-capacitor disconnect switch which connects a plurality of Y-capacitors connected in common to a DC link to chassis ground is diagnosed.