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:
Nov. 01, 2022
Filed:
Jan. 30, 2020
Korea Institute of Energy Research, Daejeon, KR;
Won Yong Lee, Daejeon, KR;
Hwan Yeong Oh, Daejeon, KR;
Min Jin Kim, Daejeon, KR;
Seok Hee Park, Daejeon, KR;
Gu Gon Park, Daejeon, KR;
Tae Hyun Yang, Daejeon, KR;
Sung Dae Yim, Daejeon, KR;
Young Jun Sohn, Daejeon, KR;
Byung Chan Bae, Daejeon, KR;
Seung Gon Kim, Daejeon, KR;
Dong Won Shin, Sejong-si, KR;
Seung Hee Woo, Daejeon, KR;
So Jeong Lee, Daejeon, KR;
Hye Jin Lee, Daejeon, KR;
Yoon Young Choi, Sejong-si, KR;
Korea Institute of Energy Research, Daejeon, KR;
Abstract
A hierarchical fault classification method for a fuel cell system, a multi-stage fault diagnosis method therefor, and a fault diagnosis device therefor are disclosed. The fuel cell system is divided into a subsystem, a component, and an element step by step. The multi-stage fault diagnosis method includes detecting a subsystem, a fault of which occurs, in the fuel cell system composed of a plurality of subsystems and detecting an upper-level component, which causes the fault, among upper-level components included in the subsystem, the fault of which occurs, using measurement data and a control signal.