JP5056239B2 - 燃料電池システム - Google Patents
燃料電池システム Download PDFInfo
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- JP5056239B2 JP5056239B2 JP2007197401A JP2007197401A JP5056239B2 JP 5056239 B2 JP5056239 B2 JP 5056239B2 JP 2007197401 A JP2007197401 A JP 2007197401A JP 2007197401 A JP2007197401 A JP 2007197401A JP 5056239 B2 JP5056239 B2 JP 5056239B2
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- fuel cell
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- scavenging
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- scavenging process
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- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04828—Humidity; Water content
- H01M8/0485—Humidity; Water content of the electrolyte
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- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
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Description
図1は、第1実施形態に係る燃料電池システム1の構成図である。
燃料電池システム1は、燃料電池自動車(FCHV)、電気自動車、ハイブリッド自動車などの車両100に搭載できる。ただし、燃料電池システム1は、車両100以外の各種移動体(例えば、船舶や飛行機、ロボット等)や定置型電源、さらには携帯型燃料電池システムにも適用可能である。
図2は、燃料電池システム1の停止時の処理フローを示すフローチャートである。なお、以下の説明では、車両100が低温モード(燃料電池2の温度が閾値温度未満など)で走行している場合を想定する。
車両100の運転手によるイグニッションスイッチのOFF操作等によって、燃料電池システム1の運転停止指令が入力されると(ステップS110)、次回の低温始動に備えるべく、掃気処理を行う(ステップS120)。
図4に示すように、例えば車両100の運転手によるイグニッションスイッチのON操作等によって、燃料電池システム1の運転開始が指令されると(ステップS210)、制御装置7は、低温モードフラグ80を参照し、低温始動すべきか否かを判断する(ステップS220)。上述したように、低温モードフラグ80は、運転手等によるボタン操作によって低温モードでの始動命令が入力された場合に制御装置7によって「オン」に設定される一方、かかる操作がなされない(初期設定も含む)場合には制御装置7によって「オフ」に設定される。
上述した第1実施形態では、測定インピーダンスを利用して前回システム停止時の掃気処理が不十分であったか否かを判断したが、掃気時間を利用して前回システム停止時の掃気処理が不十分であったか否かを判断しても良い。図4は、第2実施形態に係る燃料電池システム1’の構成を示す図である。なお、図1に対応する部分には同一符号を付し、詳細な説明は割愛する。
第2実施形態では掃気時間を利用して前回システム停止時の掃気処理が不十分であったか否かを判断したが、残留水推定値を利用して前回システム停止時の掃気処理が不十分であったか否かを判断しても良い。
図6は、第3実施形態に係る燃料電池システム1’’の構成を示す図である。なお、図4に対応する部分には同一符号を付し、詳細な説明は割愛する。
Claims (6)
- 低温始動の際、燃料電池の関連温度が基準温度に達するまで暖機運転を行う燃料電池システムであって、
システム始動の際に低温始動すべきか否かを判定する第1判定手段と、
前回のシステム停止時に実施された掃気処理が不十分であったか否かを判定する第2判定手段と、
前記各判定手段によって、低温始動すべきであり、かつ、前回のシステム停止時に実施された掃気処理が不十分であったと判定された場合には、前記燃料電池の関連温度が、前記基準温度よりも高い目標温度に達するまで暖機運転を継続する運転制御手段と、
システム停止時に掃気処理を行う掃気手段と
を具備することを特徴とする燃料電池システム。 - 前記運転制御手段は、前記暖機運転を終了した後に通常運転に移行し、
前記暖機運転は、前記通常運転に比して電力損失の大きな低効率運転であ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。 - システム停止時の前記燃料電池のインピーダンスを測定するインピーダンス測定手段をさらに備え、
前記第2判定手段は、前回システム停止時に測定された前記燃料電池のインピーダンスに基づき、前記掃気処理が不十分であったか否かを判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。 - 前記システム停止時の掃気時間を測定する掃気時間測定手段をさらに備え、
前記第2判定手段は、前回システム停止時に測定された前記掃気時間に基づき、前記掃気処理が不十分であったか否かを判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。 - システム停止時の前記燃料電池の残水量を推定する推定手段をさらに備え、
前記第2判定手段は、前回システム停止時に推定された前記燃料電池の残水量に基づき、前記掃気処理が不十分であったか否かを判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。 - 前記燃料電池の関連温度は、外気温度、燃料電池周辺の部品温度、燃料電池の冷媒温度の少なくともいずれかを含み、
前記第1判定手段は、前記燃料電池の関連温度に基づき低温始動すべきか否かを判定することを特徴とする請求項1〜5のいずれか1の請求項に記載の燃料電池システム。
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JP2007197401A JP5056239B2 (ja) | 2007-07-30 | 2007-07-30 | 燃料電池システム |
US12/670,366 US20100209791A1 (en) | 2007-07-30 | 2008-07-23 | Fuel cell system |
KR1020107001858A KR101085505B1 (ko) | 2007-07-30 | 2008-07-23 | 연료전지시스템 |
PCT/JP2008/063625 WO2009017140A1 (ja) | 2007-07-30 | 2008-07-23 | 燃料電池システム |
CN2008801014659A CN101772854B (zh) | 2007-07-30 | 2008-07-23 | 燃料电池系统 |
DE112008001996T DE112008001996T5 (de) | 2007-07-30 | 2008-07-23 | Brennstoffzellensystem |
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JP5382627B2 (ja) * | 2009-07-21 | 2014-01-08 | トヨタ自動車株式会社 | 燃料電池システム |
JP5741320B2 (ja) * | 2011-08-22 | 2015-07-01 | 日産自動車株式会社 | 燃料電池システム |
JP5454556B2 (ja) * | 2011-11-22 | 2014-03-26 | 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制御方法 |
WO2014109239A1 (ja) * | 2013-01-09 | 2014-07-17 | 日産自動車株式会社 | 燃料電池システム及びその制御方法 |
CN104900895B (zh) * | 2015-04-15 | 2017-05-17 | 成都国佳电气工程有限公司 | 一种燃料电池控制系统和燃料电池系统冷启动控制方法 |
DE102018212881A1 (de) * | 2018-08-02 | 2020-02-06 | Audi Ag | Versorgungseinrichtung mit einer Brennstoffzelleneinrichtung und einer Batterie, Brennstoffzellenfahrzeug sowie Verfahren zum Starten einer Versorgungseinrichtung |
JP7298547B2 (ja) | 2020-05-28 | 2023-06-27 | トヨタ自動車株式会社 | 燃料電池システム |
CN114335617B (zh) * | 2020-09-30 | 2023-10-24 | 北京亿华通科技股份有限公司 | 一种燃料电池系统停机吹扫的自适应控制方法 |
CN112670541A (zh) * | 2020-12-24 | 2021-04-16 | 新源动力股份有限公司 | 一种燃料电池低温启动过程膜电极结冰的判断方法、系统及存储介质 |
CN115332582B (zh) * | 2022-10-17 | 2023-01-31 | 北京亿华通科技股份有限公司 | 一种燃料电池低温启动控制系统 |
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JP4802468B2 (ja) | 2003-09-12 | 2011-10-26 | トヨタ自動車株式会社 | 燃料電池搭載装置およびそのシステム |
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JP2005209634A (ja) * | 2003-12-26 | 2005-08-04 | Honda Motor Co Ltd | 燃料電池の運転停止時制御方法及びその装置 |
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JP2007035567A (ja) | 2005-07-29 | 2007-02-08 | Nissan Motor Co Ltd | 燃料電池システム |
JP2007122911A (ja) | 2005-10-25 | 2007-05-17 | Nissan Motor Co Ltd | 燃料電池システム |
JP4922597B2 (ja) | 2005-10-27 | 2012-04-25 | 株式会社日立製作所 | 燃料電池システムの診断方法および診断装置 |
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JP2009032610A (ja) | 2009-02-12 |
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