JP2007048577A - 燃料電池システム、および燃料電池システムにおける燃料ガス漏れ判定方法 - Google Patents
燃料電池システム、および燃料電池システムにおける燃料ガス漏れ判定方法 Download PDFInfo
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Abstract
【解決手段】燃料ガス系3に形成される閉空間でのガス漏れを判定するガス漏れ判定部(例えばECU13)は、圧力センサP5によって検出された当該閉空間における圧力の変化に基づきガス漏れ判定値を参照してガス漏れを判定するものであって、尚かつ、燃料極における窒素の濃度に応じて燃料ガス漏れの判定レベルを異ならせるようにする。これは、燃料電池スタック20の再起動時において燃料極における窒素の濃度が一時的に高くなることを考慮して当該窒素濃度に応じてガス漏れ判定レベルを異ならせるというものであり、この場合、窒素の濃度に応じてガス漏れ判定値の変更を行うことなどが好ましい。
【選択図】 図1
Description
cncN2 = cncN2 tmp * prsH2 fc b / prsH2 fc a
という式、つまり、水素加圧前のアノード窒素濃度(cncN2 tmp)と水素加圧後のアノード圧力(prsH2 fc b)とを乗じ、これを水素加圧後のアノード圧力(prsH2 fc a)で除した値として求めることができる。これによって一連の処理を終了する(ステップ14)。
Claims (7)
- 燃料電池の燃料極側に形成されている閉空間における圧力変化を検出し、当該圧力変化の検出結果に基づき所定のガス漏れ判定値を参照して前記閉空間における燃料ガス漏れの判定を行う燃料電池システムにおける燃料ガス漏れ判定方法であって、
前記燃料極における窒素の濃度に応じて燃料ガス漏れの判定レベルを異ならせ、前記燃料ガス漏れの判定を行うことを特徴とする燃料電池システムにおける燃料ガス漏れ判定方法。 - 前記窒素の濃度に応じて前記ガス漏れ判定値を変更することにより、前記燃料ガス漏れの判定レベルを異ならせることを特徴とする請求項1に記載の燃料電池システムにおける燃料ガス漏れ判定方法。
- 前記燃料極における窒素の濃度を、燃料電池の電解質膜を透過して空気極側へと漏れた前記燃料ガスの透過量と、前記燃料電池が停止してから再起動されるまでの放置時間とのうちの少なくともいずれか一方に基づいて推定することを特徴とする請求項1または2に記載の燃料電池システムにおける燃料ガス漏れ判定方法。
- 前記燃料極における窒素の濃度を、運転停止時における燃料電池スタックの温度と、燃料電池の再起動時における前記燃料極の圧力と、前記燃料電池が停止してから再起動されるまでの放置時間と、に基づいて推定することを特徴とする請求項1または2に記載の燃料電池システムにおける燃料ガス漏れ判定方法。
- 燃料ガスの供給を受けて発電する燃料電池と、該燃料電池に燃料ガスを給排する燃料ガス系と、該燃料ガス系に設けられている調圧弁と、前記燃料ガス系に形成される閉空間における圧力を検出する圧力センサと、前記燃料ガス系に形成される閉空間でのガス漏れを判定するガス漏れ判定部とを備えた燃料電池システムにおいて、
前記ガス漏れ判定部は、前記圧力センサによって検出された前記閉空間における圧力の変化に基づきガス漏れ判定値を参照してガス漏れを判定するものであって、前記燃料極における窒素の濃度に応じて前記ガス漏れの判定レベルを異ならせ、前記燃料ガス漏れの判定を行うものであることを特徴とする燃料電池システム。 - 前記ガス漏れ判定部は、前記窒素の濃度に応じて前記ガス漏れ判定値の変更を行うことにより、前記燃料ガス漏れの判定レベルを異ならせることを特徴とする請求項5に記載の燃料電池システム。
- 燃料電池スタックの温度を検出するスタック温度検出手段と、前記燃料極の圧力を検出する燃料極圧力検出手段と、前記放置時間を計測する放置時間計測手段と、を備え、
前記燃料極における窒素の濃度を、運転停止時における燃料電池スタックの温度と、燃料電池の再起動時における前記燃料極の圧力と、前記燃料電池が停止してから再起動されるまでの放置時間と、に基づき推定することを特徴とする請求項5または6に記載の燃料電池システム。
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JP2005231368A JP5196209B2 (ja) | 2005-08-09 | 2005-08-09 | 燃料電池システム、および燃料電池システムにおける燃料ガス漏れ判定方法 |
PCT/JP2006/315449 WO2007018132A1 (ja) | 2005-08-09 | 2006-07-28 | 燃料電池システム、および燃料電池システムにおける燃料ガス漏れ判定方法 |
CNB2006800070629A CN100546087C (zh) | 2005-08-09 | 2006-07-28 | 燃料电池系统及燃料电池系统的燃料气体泄漏判断方法 |
DE112006002060T DE112006002060B4 (de) | 2005-08-09 | 2006-07-28 | Brennstoffzellensystem und Verfahren zum Beurteilen einer Brenngasleckage in einem Brennstoffzellensystem |
US11/920,701 US7829233B2 (en) | 2005-08-09 | 2006-07-28 | Fuel cell system and method for judging fuel gas leak in a fuel cell system |
KR1020087000739A KR100974050B1 (ko) | 2005-08-09 | 2006-07-28 | 연료전지시스템 및 연료전지시스템에서의 연료가스 누출판정방법 |
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JP2012133997A (ja) * | 2010-12-21 | 2012-07-12 | Honda Motor Co Ltd | 燃料電池のクロスリーク判定方法と燃料電池システム |
JP2016095983A (ja) * | 2014-11-13 | 2016-05-26 | トヨタ自動車株式会社 | 燃料電池の反応ガスの漏洩を検出する方法および燃料電池システム |
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DE102006059030A1 (de) * | 2006-12-14 | 2008-06-19 | Daimler Ag | Leckageprüfung in einem Brennstoffzellensystem |
WO2010120309A1 (en) * | 2009-04-17 | 2010-10-21 | Utc Power Corporation | Fuel cell stack gas leak detection |
CN102470749B (zh) * | 2009-07-21 | 2014-02-26 | 丰田自动车株式会社 | 燃料系统和车辆 |
DE102009057130A1 (de) | 2009-12-08 | 2011-06-09 | Heinrich-Heine-Universität Düsseldorf | Verfahren zur Analyse der Zusammensetzung von Gasgemischen |
US8387441B2 (en) * | 2009-12-11 | 2013-03-05 | GM Global Technology Operations LLC | Injector flow measurement for fuel cell applications |
US8507141B2 (en) * | 2010-08-25 | 2013-08-13 | GM Global Technology Operations LLC | Membrane permeation adjustment in PEM fuel cell |
US9447752B2 (en) * | 2011-07-11 | 2016-09-20 | Toyota Jidosha Kabushiki Kaisha | Detection method of airtight failure in working-gas circulating type gas engine, and working-gas circulating type gas engine using the method |
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JP6079749B2 (ja) | 2014-11-13 | 2017-02-15 | トヨタ自動車株式会社 | 燃料電池システムおよび水素ガス漏れ検出方法 |
JP6389440B2 (ja) * | 2015-03-13 | 2018-09-12 | 株式会社神戸製鋼所 | ガス供給システムおよびそれを備えた水素ステーション、蓄圧器の寿命判定方法、並びにガス供給システムの使用方法 |
KR102371601B1 (ko) | 2017-05-25 | 2022-03-07 | 현대자동차주식회사 | 연료전지 시스템 제어 방법 |
JP6834867B2 (ja) * | 2017-09-13 | 2021-02-24 | トヨタ自動車株式会社 | 燃料電池システムおよび燃料電池システムの異常診断方法 |
JP6996340B2 (ja) * | 2018-02-26 | 2022-02-04 | トヨタ自動車株式会社 | 燃料電池システム及び燃料電池の制御方法 |
US11404710B2 (en) * | 2018-12-17 | 2022-08-02 | Cummins Enterprise Llc | Assembled portion of a solid oxide fuel cell and methods for inspecting the same |
CN111106370B (zh) * | 2019-12-31 | 2021-09-24 | 上海神力科技有限公司 | 一种燃料电池电堆膜电极串漏检测方法 |
CN111707419B (zh) * | 2020-07-01 | 2022-05-03 | 郑州佛光发电设备有限公司 | 一种模拟燃料电池在目标温度下密封性能的检测方法 |
JP7498689B2 (ja) | 2021-09-22 | 2024-06-12 | 株式会社豊田自動織機 | 燃料電池システム |
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- 2006-07-28 KR KR1020087000739A patent/KR100974050B1/ko active IP Right Grant
- 2006-07-28 CN CNB2006800070629A patent/CN100546087C/zh not_active Expired - Fee Related
- 2006-07-28 DE DE112006002060T patent/DE112006002060B4/de not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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DE112006002060B4 (de) | 2012-04-12 |
JP5196209B2 (ja) | 2013-05-15 |
CN101133509A (zh) | 2008-02-27 |
DE112006002060T5 (de) | 2008-05-29 |
US7829233B2 (en) | 2010-11-09 |
KR20080016737A (ko) | 2008-02-21 |
WO2007018132A1 (ja) | 2007-02-15 |
US20090047553A1 (en) | 2009-02-19 |
KR100974050B1 (ko) | 2010-08-04 |
CN100546087C (zh) | 2009-09-30 |
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