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:
Aug. 23, 2016
Filed:
Dec. 11, 2013
Hyundai Motor Company, Seoul, KR;
Hyundai Autron Co., Ltd., Seongnam, Gyeonggi-Do, KR;
Kwi Seong Jeong, Gyeonggi-do, KR;
Young Bum Kum, Seoul, KR;
Sae Hoon Kim, Gyeonggi-do, KR;
Haengjin Ko, Seoul, KR;
Young-Hyun Lee, Gyeonggi-do, KR;
Uck-Soo Kim, Gyeonggi-do, KR;
Hyun-Seok Park, Gyeonggi-do, KR;
Hyundai Motor Company, Seoul, KR;
Kangnam University Industry-Academia Cooperation Foundation, Yongin, Gyeonggi-Do, KR;
Hyundai Autron Co., Ltd., Seongnam, Gyeonggi-Do, KR;
Abstract
A failure diagnosis apparatus that includes an alternating current (AC) absorption unit that is connected to the fuel cell stack and switched based on an applied AC signal to enable a current from the fuel cell stack to flow. In addition, an AC signal generator is configured to generate the AC signal and supply the generated AC signal to the AC absorption unit. As the current from the fuel cell stack is absorbed by the AC absorption unit based on an alternating signal, a stack current input into a diagnosis processing unit includes an AC component, thus the diagnosis processing unit may diagnose fuel cell stack failure by analyzing a frequency of the AC component.