Title:
燃料電池診断装置
Document Type and Number:
Japanese Patent JP6569464
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel battery diagnosis device capable of diagnosing whether a chemical reaction accompanied by deterioration occurs under fuel deficiency.SOLUTION: In a fuel deficiency determination process, when a cell 10a under a negative voltage exists in cells 10a, it is determined that fuel deficiency is occurring. Then, the cell 10a under a negative voltage is set as a diagnosis target cell, and based on comparison between the impedance of the diagnosis target cell and an impedance determination threshold value, it is determined whether or not a chemical reaction accompanied by deterioration occurs under fuel deficiency. Specifically, when the impedance of the diagnosis target cell is not more than the impedance determination threshold value, it is determined that a chemical reaction which is not accompanied by deterioration is occurring in the diagnosis target cell, and when the impedance of the diagnosis target cell is larger than the impedance determination threshold value, it is determined that a chemical reaction accompanied by deterioration is occurring in the diagnosis target cell.SELECTED DRAWING: Figure 8
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Inventors:
Yuji Ishikawa
Takashi Yamamoto
Atsushi Iio
Shigeki Hasegawa
Takahiko Hasegawa
Takashi Yamamoto
Atsushi Iio
Shigeki Hasegawa
Takahiko Hasegawa
Application Number:
JP2015208247A
Publication Date:
September 04, 2019
Filing Date:
October 22, 2015
Export Citation:
Assignee:
株式会社ＳＯＫＥＮ
株式会社デンソー
トヨタ自動車株式会社
株式会社デンソー
トヨタ自動車株式会社
International Classes:
H01M8/04; H01M8/02; H01M8/04228
Domestic Patent References:
| JP2013258043A | ||||
| JP2008147102A | ||||
| JP20129406A | ||||
| JP2002367650A | ||||
| JP2004241236A |
Foreign References:
| WO2016072026A1 |
Attorney, Agent or Firm:
Patent Business Corporation Yuai Patent Office