JP2021190254A - 燃料電池システムおよびその制御方法 - Google Patents
燃料電池システムおよびその制御方法 Download PDFInfo
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- 239000000446 fuel Substances 0.000 title claims abstract description 172
- 238000000034 method Methods 0.000 title claims description 35
- 230000002000 scavenging effect Effects 0.000 claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 9
- 239000002826 coolant Substances 0.000 claims description 8
- 238000007710 freezing Methods 0.000 claims description 6
- 230000008014 freezing Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 50
- 239000002737 fuel gas Substances 0.000 description 37
- 239000000498 cooling water Substances 0.000 description 32
- 230000008569 process Effects 0.000 description 29
- 239000007800 oxidant agent Substances 0.000 description 19
- 230000001590 oxidative effect Effects 0.000 description 18
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 15
- 239000001257 hydrogen Substances 0.000 description 15
- 229910052739 hydrogen Inorganic materials 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000007788 liquid Substances 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003584 silencer Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 230000006266 hibernation Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
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- B60L58/32—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load
- B60L58/33—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load by cooling
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Abstract
Description
(2)上記形態の燃料電池システムにおいて、前記温度取得部は、特定位置の温度を複数回取得し、前記制御部は、前記停止時掃気の要否の判定において、測定された複数の温度のうちの最低値が予め定められた判定温度以下の場合には、次回の燃料電池システムの停止時掃気を要と判定してもよい。この形態によれば、特定位置の温度の最低値が予め定められた判定温度以下の場合には、燃料電池システムが置かれた環境が、例えば、冬と判定できる。
(3)上記形態の燃料電池システムにおいて、前記温度取得部は、特定位置の温度を複数回取得し、前記制御部は、前記停止時掃気の要否の判定において、測定された複数の温度の遷移を用いて、前記特定位置の温度の最低値を推定し、推定された前記特定位置の温度の最低値が予め定められた判定温度以下の場合には、次回の燃料電池システムの停止時掃気を要と判定してもよい。この形態によれば、特定位置の温度の遷移から燃料電池システムが置かれた環境を推定できる。
(4)上記形態の燃料電池システムにおいて、前記判定温度は、水の氷点であってもよい。この形態によれば、次回の燃料電池システムの停止時に、燃料電池内の水が凍結するような環境になるか、否かを判定できる。
(5)上記形態の燃料電池システムにおいて、前記燃料電池に冷却媒体を供給する冷却回路を備え、前記特定位置の温度は、前記冷却回路において前記燃料電池から排出される前記冷却媒体の温度であってもよい。燃料電池から冷却媒体が排出される位置の温度は、燃料電池の温度とほぼ同じである。この形態によれば、冷却媒体の温度から次回の燃料電池システムの停止時の燃料電池内の温度を判断できる。
(6)上記形態の燃料電池システムにおいて、前記特定位置の温度は、前記燃料電池の温度であってもよい。この形態によれば、次回の燃料電池システムの停止時の燃料電池内の温度を直接判断できる。
(7)上記形態の燃料電池システムにおいて、前記特定位置は、前記車両における外気温を測定可能な位置であってもよい。燃料電池システムの停止時の燃料電池内の温度は、外気温の影響を受けて変化する。この形態によれば、外気温から次回の燃料電池システムの停止時の燃料電池内の温度を判断できる。
(8)上記形態の燃料電池システムにおいて、外部と通信可能な通信部を備え、前記通信部を用いて外部から外気温を前記特定位置の温度として取得してもよい。この形態によれば、燃料電池システムを搭載する車両に、外気温を測定するセンサを備えなくても良い。
本開示は、燃料電池システム以外の種々の形態で実現することも可能である。例えば、燃料電池システムの制御方法や燃料電池の掃気方法遠等の形態で実現することができる。
Claims (9)
- 燃料電池システムであって、
燃料電池と、
燃料電池システムが搭載された車両における特定位置の温度を取得する温度取得部と、
前記燃料電池の運転停止時に燃料電池を掃気する掃気部と、
前記燃料電池システムが停止されてから次に起動されるまでの間に前記温度取得部から前記特定位置の温度を1回以上取得し、前記特定位置の温度を用いて、次回の燃料電池システムの停止の際に前記掃気部による停止時掃気の要否の判定を行う制御部と、
を備える、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、
前記温度取得部は、特定位置の温度を複数回取得し、
前記制御部は、前記停止時掃気の要否の判定において、測定された複数の温度のうちの最低値が予め定められた判定温度以下の場合には、次回の燃料電池システムの停止時掃気を要と判定する、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、
前記温度取得部は、特定位置の温度を複数回取得し、
前記制御部は、前記停止時掃気の要否の判定において、測定された複数の温度の遷移を用いて、前記特定位置の温度の最低値を推定し、推定された前記特定位置の温度の最低値が予め定められた判定温度以下の場合には、次回の燃料電池システムの停止時掃気を要と判定する、燃料電池システム。 - 請求項2または請求項3に記載の燃料電池システムであって、
前記判定温度は、水の氷点である、燃料電池システム。 - 請求項1から請求項4のいずれか一項に記載の燃料電池システムであって、
前記燃料電池に冷却媒体を供給する冷却回路を備え、
前記特定位置の温度は、前記冷却回路において前記燃料電池から排出される前記冷却媒体の温度である、燃料電池システム。 - 請求項1から請求項4のいずれか一項に記載の燃料電池システムであって、
前記特定位置の温度は、前記燃料電池の温度である、燃料電池システム。 - 請求項1から請求項4のいずれか一項に記載の燃料電池システムであって、
前記特定位置は、前記車両における外気温を測定可能な位置である、燃料電池システム。 - 請求項7に記載の燃料電池システムであって、
外部と通信可能な通信部を備え、
前記通信部を用いて外部から外気温を前記特定位置の温度として取得する、燃料電池システム。 - 燃料電池システムの制御方法であって、
燃料電池システムが停止されてから次に起動されるまでの間に、燃料電池システムが搭載された車両における特定位置の温度を1回以上取得し、前記特定位置の温度を用いて、次回の燃料電池システムの停止の際の燃料電池の掃気である停止時掃気を実行するか否かを判定する、燃料電池システムの制御方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020093177A JP2021190254A (ja) | 2020-05-28 | 2020-05-28 | 燃料電池システムおよびその制御方法 |
US17/182,297 US11799102B2 (en) | 2020-05-28 | 2021-02-23 | Fuel cell system and control method of the same |
CN202110285533.9A CN113745589A (zh) | 2020-05-28 | 2021-03-17 | 燃料电池系统及燃料电池系统的控制方法 |
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JP2017010904A (ja) * | 2015-06-26 | 2017-01-12 | トヨタ自動車株式会社 | 燃料電池システム |
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