JP2017017907A - 電池制御装置 - Google Patents
電池制御装置 Download PDFInfo
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Abstract
【解決手段】バッテリコントローラ101は、電池の開回路電圧OCVおよび電池に設定された上下限電圧Vmax,Vminに基づいて、無分極状態を仮定した場合の電池の電流制限値である第1許容電流値Imax1を算出する第1許容電流値演算部704と、前記電流制限値の算出時における電池の分極状態を推定する電池等価回路モデル702と、推定された分極状態に基づいて第1許容電流値Imax1を補正する許容電流値補正値ΔIを算出する補正量演算部706t、を備え、補正された第1許容電流値である第2許容電流値Imax2を、電池の許容充放電電流値として出力する。
【選択図】図2
Description
Icmax1=(Vmax-OCV)/R1 …(1)
Idmax=(OCV-Vmin)/R1 …(2)
Vpt=IRp-(IRp-Vp0)exp(-t/RpCp) …(3)
Vpt=IRp(1-Gt)+Vp0・Gt …(4)
CCV=OCV+I・Rdc+Vpt
=OCV+I・Rdc+IRp(1-Gt)+Vp0・Gt
=OCV+I(Rdc+Rp(1-Gt))+Vp0・Gt …(5)
Icmax2=(Vmax-OCV)/(Rdc+Rp(1-Gt))-Vp0・Gt/(Rdc+Rp(1-Gt))
=(Vmax-OCV)/R1-Vp0・Gt/R1 …(6)
R1=Rdc+Gsoc+Rp(1-Gt) …(7)
(a)電池制御装置であるバッテリコントローラ101は、電池の開回路電圧(OCV)および電池に設定された上下限電圧(Vmax,Vmin)に基づいて、無分極状態を仮定した場合の電池の電流制限値である第1許容電流値を算出する第1許容電流値演算部704と、前記電流制限値の算出時における電池の分極状態を推定する電池等価回路モデル702と、推定された分極状態に基づいて第1許容電流値を補正する補正部としての分極予測部705、補正量演算部706および第2許容電流値演算部707、を備える。そして、補正された第1許容電流値、すなわち第2許容電流値Imax2を、電池の許容充放電電流値として出力する。
Claims (7)
- 電池の開回路電圧および電池に設定された上下限電圧に基づいて、無分極状態を仮定した場合の電池の電流制限値を算出する電流制限値算出部と、
前記電流制限値の算出時における電池の分極状態を推定する推定部と、
前記推定された分極状態に基づいて前記電流制限値を補正する補正部と、を備え、
前記補正部により補正された電流制限値を、電池の許容充放電電流値として出力する、電池制御装置。 - 請求項1に記載の電池制御装置において、
前記電流制限値算出部は、電池の開回路電圧、電池に設定された上下限電圧、および、電池に一定電流を無分極状態から所定時間流した場合の電池内部抵抗に基づいて、電池の電流制限値を算出し、
前記補正部は、前記推定部で推定された分極状態の電池を電流ゼロの状態に前記所定時間維持したときの分極電圧を算出し、算出された分極電圧に対応する補正電流値を用いて前記電流制限値を補正する、電池制御装置。 - 請求項2に記載の電池制御装置において、
前記電池内部抵抗は、電池の直流抵抗、単位電流当たりの電池の開回路電圧変化量および電池の分極抵抗に基づいて算出される、電池制御装置。 - 請求項2に記載の電池制御装置において、
前記補正部は、前記電池内部抵抗と前記分極電圧とに基づいて、前記補正電流値を算出する、電池制御装置。 - 請求項2に記載の電池制御装置において、
前記分極電圧は、電池の電流をゼロとした場合の分極電圧の時間変化を示す係数と、前記推定部で推定された分極状態における分極電圧との積で算出される、電池制御装置。 - 請求項2に記載の電池制御装置において、
前記推定部で推定される分極状態は、電池制御装置の起動時、または、電池に接続されている負荷の起動時に初期化される、電池制御装置。 - 請求項5に記載の電池制御装置において、
前記電池内部抵抗、電池の電流をゼロとした場合の分極電圧の時間変化を示す前記係数、および前記上下限電圧の少なくとも一つは、電池の温度、電池の充電率および電池を流れる電流の少なくとも一つに応じた値とされる、電池制御装置。
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015133913A JP6383704B2 (ja) | 2015-07-02 | 2015-07-02 | 電池制御装置 |
| EP16817550.3A EP3319197B1 (en) | 2015-07-02 | 2016-04-27 | Battery control device |
| US15/738,994 US10680453B2 (en) | 2015-07-02 | 2016-04-27 | Battery control device |
| PCT/JP2016/063128 WO2017002440A1 (ja) | 2015-07-02 | 2016-04-27 | 電池制御装置 |
| EP21155106.4A EP3849044B1 (en) | 2015-07-02 | 2016-04-27 | Battery control device |
| CN202010810994.9A CN111987765B (zh) | 2015-07-02 | 2016-04-27 | 电池控制装置和电池组 |
| CN201680025915.5A CN107534309B (zh) | 2015-07-02 | 2016-04-27 | 电池控制装置 |
| JP2018147804A JP6564116B2 (ja) | 2015-07-02 | 2018-08-06 | 電池制御装置、電池パック |
| US16/876,802 US11247581B2 (en) | 2015-07-02 | 2020-05-18 | Battery control device |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2015133913A JP6383704B2 (ja) | 2015-07-02 | 2015-07-02 | 電池制御装置 |
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| JP2018147804A Division JP6564116B2 (ja) | 2015-07-02 | 2018-08-06 | 電池制御装置、電池パック |
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| JP2017017907A true JP2017017907A (ja) | 2017-01-19 |
| JP6383704B2 JP6383704B2 (ja) | 2018-08-29 |
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| JP2015133913A Active JP6383704B2 (ja) | 2015-07-02 | 2015-07-02 | 電池制御装置 |
| JP2018147804A Active JP6564116B2 (ja) | 2015-07-02 | 2018-08-06 | 電池制御装置、電池パック |
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| JP7376002B2 (ja) | 2019-12-19 | 2023-11-08 | エルジー エナジー ソリューション リミテッド | 急速充電用電流パターン更新装置、方法、及びそれを行う格納媒体に格納されたコンピュータプログラム |
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| US10680453B2 (en) | 2020-06-09 |
| US11247581B2 (en) | 2022-02-15 |
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| EP3319197A1 (en) | 2018-05-09 |
| EP3849044A1 (en) | 2021-07-14 |
| CN111987765A (zh) | 2020-11-24 |
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| US20180226824A1 (en) | 2018-08-09 |
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| EP3319197A4 (en) | 2019-03-06 |
| JP6564116B2 (ja) | 2019-08-21 |
| CN107534309A (zh) | 2018-01-02 |
| WO2017002440A1 (ja) | 2017-01-05 |
| CN111987765B (zh) | 2024-08-13 |
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