JP2006190695A - 電池電源装置 - Google Patents
電池電源装置 Download PDFInfo
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Abstract
【解決手段】 二次電池である複数個の単電池を電気的且つ機械的に直列に接続して電池モジュール9を形成し、複数本の電池モジュール9を立体的に並列配置してホルダケース10内に保持させると共に、複数本の電池モジュール9を電気的に直列接続した電池パックと、この電池パック内に冷媒を強制的に流動させる冷却手段5と、単数または複数の電池モジュール単位の温度を検出する温度検出手段93a〜93dとを備えている。
【選択図】 図19
Description
電池の動作状態は、電池パック8の総電圧、2本の電池モジュール9単位のブロック電圧、電池パック8の充放電電流、電池モジュール単位の温度、電池パック8を空冷する空気温度(冷媒温度)がそれぞれ検出され、各検出データは電池ECU2に入力されることによって、電圧、電流、温度の検出値から電池容量に対して蓄電された電気量であるSOCが演算され、適正なSOC範囲に維持されるように放電及び充電が実行されることにより、過放電や過充電のない適正状態に制御される。
電池電源装置1に異常が発生した場合に対処するため、異常時に電池パック8の充放電回路を遮断するリレー86が設けられる。また、製造時や保守点検時の異常発生を未然に防止するために、活線状態にある高電圧線路を遮断する直列回路遮断プラグ(直列回路遮断手段)75が設けられている。
電池はその温度により電気的特性が変化するため適正な温度に保つ必要がある。そのため、充放電による昇温を防止するために電池冷却の手段が不可欠であり、図1に示すように送風機5を設けて、ホルダケース10の下方開口部を空気導入部53とし、上方開口部を空気導出部54として、下方(上流側)から上方(下流側)に流れる強制空冷によって各電池モジュール9の冷却を行っている。
電池電源装置1はハイブリッド車である車両に電池電力を供給すると共に、車両側の発電機から充電電力の供給を受ける。この充放電が適正に実施されることにより電池パック8は適正な動作状態に維持することができる。そこで、電池ECU2は、各センサにより検出された電圧、電流、温度及び電池の動作状態を示すSOC等のデータを車両側の車両制御ECU(車輌制御手段)84に出力することにより、車輌側の放電及び充電電力が調整され、過放電や過充電が発生しない適正な動作状態が保たれるよう制御される。
2 電池ECU(電池容量判定手段/電池状態伝達手段)
4 外装ケース
5 送風機(冷却手段)
6 電池ホルダ
7 単電池
8 電池パック
9 電池モジュール
10 ホルダケース
14 異常温度センサ
15 接続線
18 ケース本体
19 第1エンドプレート
20 第2エンドプレート
35 動力ケーブル
75 直列回路遮断プラグ
84 車両制御ECU(車両制御手段)
86 リレー
87 電流センサ(電流検出手段)
88 抵抗器(突入電流防止手段)
93a〜93d ブロック温度センサ(温度検出手段)
94 空気温度センサ
Claims (8)
- 二次電池である複数個の単電池を電気的且つ機械的に直列に接続して電池モジュールを形成し、複数本の電池モジュールを立体的に並列配置してホルダケース内に保持させると共に、複数本の電池モジュールを電気的に直列接続した電池パックと、この電池パック内に冷媒を強制的に流動させる冷却手段と、単数または複数の電池モジュール単位の温度を検出する温度検出手段とを備えたことを特徴とする電池電源装置。
- 冷却手段は電池モジュールの長手方向と直交する方向に冷媒を流動させるように構成され、温度検出手段は冷媒流動の上流側及び下流側の電池モジュールの温度を検出し、電池パック内の温度分布傾向に基づいて上流側及び下流側の電池モジュールの検出温度から中流部の電池モジュールの温度を演算するように構成された請求項1記載の電池電源装置。
- 冷却手段は電池モジュールの長手方向と直交する方向に冷媒を流動させるように構成され、温度検出手段は冷媒流動方向と直交する方向に並列配置された1つの電池モジュールの温度を検出し、電池パック内の温度分布傾向に基づいて並列配置された他の電池モジュールの温度を演算するように構成された請求項1記載の電池電源装置。
- 冷却手段は電池モジュールの長手方向と直交する方向に冷媒を流動させるように構成され、温度検出手段は1つの電池モジュールの温度を検出することにより、電池パック内の温度分布傾向に基づいて他の電池モジュールの温度を演算するように構成された請求項1記載の電池電源装置。
- 電池パック内の温度分布傾向を、冷媒の流量及び温度、充放電平均電力のデータに基づいて求める請求項2〜4いずれか一項に記載の電池電源装置。
- 温度検出手段が、単数または複数の電池モジュール単位で温度を検出する温度センサである請求項1〜5いずれか一項に記載の電池電源装置。
- 温度検出手段による検出温度に基づいて冷却手段の動作を制御する請求項1〜6いずれか一項に記載の電池電源装置。
- 直列接続された電池モジュールの直列回路の少なくとも1か所を遮断する直列回路遮断手段を設けた請求項1〜6いずれか一項に記載の電池電源装置。
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JP2003285598A Expired - Fee Related JP4117654B2 (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置 |
JP2003285594A Expired - Fee Related JP4117651B2 (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置 |
JP2003285599A Expired - Fee Related JP4117655B2 (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置 |
JP2003285600A Expired - Fee Related JP4077775B2 (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置の制御方法 |
JP2003285597A Expired - Fee Related JP4117653B2 (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置 |
JP2003285593A Expired - Fee Related JP4117650B2 (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置の制御方法 |
JP2003285595A Expired - Fee Related JP4117652B2 (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置 |
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JP27238097A Expired - Fee Related JP3830243B2 (ja) | 1997-10-06 | 1997-10-06 | 電池電源装置 |
JP2003285596A Pending JP2004039644A (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置の制御方法 |
JP2003285598A Expired - Fee Related JP4117654B2 (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置 |
JP2003285594A Expired - Fee Related JP4117651B2 (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置 |
JP2003285599A Expired - Fee Related JP4117655B2 (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置 |
JP2003285600A Expired - Fee Related JP4077775B2 (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置の制御方法 |
JP2003285597A Expired - Fee Related JP4117653B2 (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置 |
JP2003285593A Expired - Fee Related JP4117650B2 (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置の制御方法 |
JP2003285595A Expired - Fee Related JP4117652B2 (ja) | 1997-10-06 | 2003-08-04 | 電池電源装置 |
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EP (3) | EP1950864B1 (ja) |
JP (10) | JP3830243B2 (ja) |
KR (1) | KR100530260B1 (ja) |
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JP2020043663A (ja) * | 2018-09-10 | 2020-03-19 | 株式会社Subaru | 蓄電池の冷却制御装置及び電動車両 |
JP7206079B2 (ja) | 2018-09-10 | 2023-01-17 | 株式会社Subaru | 蓄電池の冷却制御装置及び電動車両 |
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