Invention Grant
- Patent Title: Fuel cell system and diagnosis system for the fuel cell system
- Patent Title (中): 燃料电池系统和燃料电池系统的诊断系统
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Application No.: US11244237Application Date: 2005-10-06
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Publication No.: US07695838B2Publication Date: 2010-04-13
- Inventor: Masahiro Komachiya , Hiroshi Yamauchi , Katsunori Nishimura , Kou Takahashi , Yoshinari Hori , Yoshihide Kondo
- Applicant: Masahiro Komachiya , Hiroshi Yamauchi , Katsunori Nishimura , Kou Takahashi , Yoshinari Hori , Yoshihide Kondo
- Applicant Address: JP
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2004-293425 20041006
- Main IPC: H01M8/04
- IPC: H01M8/04 ; H01M8/12
Abstract:
A part of cell stack portions constituting a part of a fuel cell stack is used as a voltage detection portion, the size of a frequency component belonging to a predetermined specific frequency range is extracted from a voltage signal detected and the existence/absence of abnormality of a fuel cell system is diagnosed on the basis of the frequency component extracted.
Public/Granted literature
- US20070196707A1 Fuel cell system and diagnosis system for the fuel cell system Public/Granted day:2007-08-23
Information query
