JP2019145358A - 燃料電池システム及びその制御方法 - Google Patents
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Abstract
Description
前記水分量推定部は、前記インジェクタの開弁時間と、前記インジェクタの開弁前の前記圧力測定値と、を含む複数の状況パラメータから、前記水分量が前記水分量閾値のときに想定される想定圧力上昇幅を求め、前記インジェクタの開弁に起因する前記圧力測定値の測定圧力上昇幅が、前記想定圧力上昇幅よりも大きい場合、前記水分量が前記水分量閾値よりも多いと推定する。この形態の燃料電池システムによれば、燃料電池のアノード側の水分量を推定することができる。
図1は、本発明の一実施形態である燃料電池システム110の構成を示す概略図である。燃料電池システム110は、燃料電池スタック(以下、単に「燃料電池」と呼ぶ)10と、カソードガス流路20と、アノードガス流路30と、冷却流路70と、制御部80と、を備える。本実施形態では、燃料電池システム110は車両に搭載されている。
H2→2H++2e− (1)
2H++O2−→H2O (2)
図6は、第2実施形態における燃料電池システム110Aの構成を示す概略図である。図7は、第2実施形態におけるフローチャートである。第2実施形態は、第1実施形態と比較して、さらに、工程P130の後に工程P135を備えるとともに、制御部80に後述する減少制御を行う減少制御部83を備える点で異なるが、その他は同じである。
20…カソードガス流路
22…カソードガス供給流路
24…カソードガス排出流路
26…バイパス流路
30…アノードガス流路
32…アノードガス供給流路
34…アノードガス排出流路
36…アノードガス循環流路
38…排出管
40…流量計
41…外気圧計
42…コンプレッサ
44…供給弁
45…圧力計
46…圧力調整弁
48…バイパス弁
50…ポンプ
52…開閉弁
53…上流側圧力測定部
54…レギュレータ
55…圧力測定部
56…インジェクタ
57…排出弁
58…気液分離器
59…サイレンサ
60…アノードガスタンク
70…冷却流路
72…温度測定部
74…ラジエータ
76…ポンプ
80…制御部
81…水分量推定部
82…ECU
83…減少制御部
85…ルックアップテーブル
91…電流測定部
92…電圧測定部
94…DC/DCコンバータ
95…PCU
110、110A…燃料電池システム
L1…破線
L2…実線
Th…水分量閾値
V…容積
W1、W2…圧力上昇幅
WP…測定圧力上昇幅
WS…想定圧力上昇幅
tA…単位時間
Claims (4)
- 燃料電池システムであって、
アノードガスとカソードガスとの電気化学反応により発電する燃料電池と、
前記燃料電池にアノードガスを供給するアノードガス供給流路と、
前記アノードガス供給流路に設けられたインジェクタと、
前記燃料電池のアノードガス入口又はアノードガス出口におけるアノードガスの圧力測定値を取得する圧力測定部と、
前記燃料電池のアノード側の水分量が、予め定められた水分量閾値よりも多いかどうかを推定する水分量推定部と、を備え、
前記水分量推定部は、
前記インジェクタの開弁時間と、前記インジェクタの開弁前の前記圧力測定値と、を含む複数の状況パラメータから、前記水分量が前記水分量閾値のときに想定される想定圧力上昇幅を求め、
前記インジェクタの開弁に起因する前記圧力測定値の測定圧力上昇幅が、前記想定圧力上昇幅よりも大きい場合、前記水分量が前記水分量閾値よりも多いと推定する、燃料電池システム。 - 請求項1に記載の燃料電池システムであって、さらに、
前記燃料電池の温度測定値を取得する温度測定部を備え、
前記複数の状況パラメータは、前記温度測定値を含む、燃料電池システム。 - 請求項1又は請求項2に記載の燃料電池システムであって、さらに、
前記水分量が前記水分量閾値よりも多いと推定した場合、前記水分量を減少させる減少制御を行う減少制御部を備える、燃料電池システム。 - アノードガスとカソードガスとの電気化学反応により発電する燃料電池と、前記燃料電池にアノードガスを供給するアノードガス供給流路と、アノードガス供給流路に設けられたインジェクタと、を備える燃料電池システムの制御方法であって、
前記燃料電池のアノード側の水分量が、前記予め定められた水分量閾値よりも多いかどうかを推定する推定工程を備え、
前記推定工程は、
前記インジェクタの開弁時間と、前記インジェクタの開弁前における前記燃料電池のアノードガス入口又はアノードガス出口の圧力測定値と、を含む複数の状況パラメータから、前記水分量が前記水分量閾値のときに想定される想定圧力上昇幅を求める工程と、
前記インジェクタの開弁に起因する前記圧力測定値の測定圧力上昇幅が、前記想定圧力上昇幅よりも大きい場合、前記水分量が前記水分量閾値よりも多いと推定する工程と、を含む、燃料電池システムの制御方法。
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JP2018028927A JP6996336B2 (ja) | 2018-02-21 | 2018-02-21 | 燃料電池システム及びその制御方法 |
DE102019102957.0A DE102019102957B4 (de) | 2018-02-21 | 2019-02-06 | Brennstoffzellensystem mit einer Wassermengenschätzungseinheit und Steuerverfahren hierfür |
US16/269,893 US10811708B2 (en) | 2018-02-21 | 2019-02-07 | Fuel cell system and control method thereof |
CN201910116317.4A CN110176612B (zh) | 2018-02-21 | 2019-02-15 | 燃料电池系统及其控制方法 |
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CN115360387B (zh) * | 2022-10-20 | 2023-03-24 | 佛山市清极能源科技有限公司 | 一种燃料电池系统的阳极水量控制方法 |
CN116053530B (zh) * | 2023-01-28 | 2023-06-13 | 江苏重塑能源科技有限公司 | 燃料电池阳极组分的浓度计算方法和计算装置 |
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JP6299683B2 (ja) * | 2015-06-25 | 2018-03-28 | トヨタ自動車株式会社 | 燃料電池システム |
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JP2008010348A (ja) * | 2006-06-30 | 2008-01-17 | Honda Motor Co Ltd | 燃料電池システムおよび燃料電池の掃気方法 |
JP2009259418A (ja) * | 2008-04-11 | 2009-11-05 | Toyota Motor Corp | 燃料電池の制御方法及び燃料電池システム |
JP2012043677A (ja) * | 2010-08-20 | 2012-03-01 | Toyota Motor Corp | 燃料電池システム、および、燃料電池システムの制御方法 |
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JP2014059969A (ja) * | 2012-09-14 | 2014-04-03 | Honda Motor Co Ltd | 燃料電池システム及びその制御方法 |
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DE102019102957A1 (de) | 2019-08-22 |
DE102019102957B4 (de) | 2022-01-27 |
CN110176612A (zh) | 2019-08-27 |
US20190260042A1 (en) | 2019-08-22 |
JP6996336B2 (ja) | 2022-02-04 |
US10811708B2 (en) | 2020-10-20 |
CN110176612B (zh) | 2022-01-04 |
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