JP2023509873A - 並列マルチパックモジュールの出力制御装置及び方法 - Google Patents
並列マルチパックモジュールの出力制御装置及び方法 Download PDFInfo
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
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Abstract
Description
nは、バッテリーパックの個数である。
Ptotalは、並列マルチパックモジュールMPの総出力である。
Ppack,kは、第kバッテリーパックの可用出力である。
Ipack,kは、第kバッテリーパックの電流測定値である。
Claims (14)
- 並列マルチパックモジュールに含まれた互いに並列で接続された第1バッテリーパック~第nバッテリーパックに対する電流測定値を含む動作特性値を測定する第1センサユニット~第nセンサユニットと、
前記並列マルチパックモジュールの総出力に対応するように、負荷で消耗される電力または充電装置から前記並列マルチパックモジュールに提供する電力を制御する出力管理ユニットと、
前記第1センサユニット~第nセンサユニット及び前記出力管理ユニットと動作可能に接続されたマルチパック管理ユニットと、を含み、
前記マルチパック管理ユニットは、前記第1センサユニット~第nセンサユニットから受信する第1バッテリーパック~第nバッテリーパックの動作特性値に基づいて第1バッテリーパック~第nバッテリーパックの最小可用出力を決定し、第1バッテリーパック~第nバッテリーパックの電流測定値のうちの最大電流値に対する合算電流値の比率と前記最小可用出力から前記並列マルチパックモジュールの総出力を決定して前記出力管理ユニットに提供するように構成された、
並列マルチパックモジュールの出力制御装置。 - 前記動作特性値は、前記第1バッテリーパック~第nバッテリーパックの電圧測定値をさらに含み、
前記マルチパック管理ユニットは、
前記第1バッテリーパック~第nバッテリーパックの電流測定値及び電圧測定値から前記第1バッテリーパック~第nバッテリーパックのパック抵抗を決定し、
各バッテリーパックに対し、予め定義されたパック抵抗-可用出力ルックアップテーブルを参照してパック抵抗に対応する可用出力を決定し、
可用出力のうちの最小値を最小可用出力として決定するように構成された、請求項1に記載の並列マルチパックモジュールの出力制御装置。 - 前記マルチパック管理ユニットは、
前記第1センサユニット~第nセンサユニットから各バッテリーパックの電圧測定値及び電流測定値の入力を周期的に受け、
前記第1バッテリーパック~第nバッテリーパックの電流測定値及び電圧測定値から線形回帰分析法によって算出された電流変化対比電圧変化の平均比率を前記第1バッテリーパック~第nバッテリーパックのパック抵抗として決定するように構成された、請求項2に記載の並列マルチパックモジュールの出力制御装置。 - 前記マルチパック管理ユニットは、
前記第1センサユニット~第nセンサユニットから受信する各バッテリーパックの動作特性値に基づいて前記第1バッテリーパック~第nバッテリーパックの充電状態(SOC)を決定し、
予め定義された充電状態-可用出力ルックアップテーブルを参照して前記第1バッテリーパック~第nバッテリーパックの充電状態に対応する可用出力を決定し、
可用出力のうちの最小値を最小可用出力として決定するように構成された、請求項1から3のいずれか一項に記載の並列マルチパックモジュールの出力制御装置。 - 前記マルチパック管理ユニットと前記出力管理ユニットとの間に介在された通信ユニットをさらに含む、請求項1から5のいずれか一項に記載の並列マルチパックモジュールの出力制御装置。
- 前記並列マルチパックモジュールは、電気駆動自動車に搭載され、
前記出力管理ユニットは、前記電気駆動自動車の制御システムに含まれる、請求項6に記載の並列マルチパックモジュールの出力制御装置。 - 請求項1から7のいずれか一項に記載の並列マルチパックモジュールの出力制御装置を含むバッテリー管理システム。
- 請求項1から7のいずれか一項に記載の並列マルチパックモジュールの出力制御装置を含む電気駆動装置。
- (a)並列マルチパックモジュールに含まれた互いに並列で接続された第1バッテリーパック~第nバッテリーパックに対する電流測定値を含む動作特性値を測定する第1センサユニット~第nセンサユニットを提供する段階と、
(b)前記第1センサユニット~第nセンサユニットから受信する各バッテリーパックの動作特性値に基づいて、第1バッテリーパック~第nバッテリーパックの可用出力をそれぞれ決定する段階と、
(c)前記第1バッテリーパック~第nバッテリーパックの可用出力から最小可用出力を決定する段階と、
(d)第1バッテリーパック~第nバッテリーパックの電流測定値のうちの最大電流値に対する合算電流値の比率と前記最小可用出力から並列マルチパックモジュールの総出力を決定する段階と、
(e)前記並列マルチパックモジュールの総出力に対応するように、前記第1バッテリーパック~第nバッテリーパックの充電または放電を制御する段階と、を含む、並列マルチパックモジュールの出力制御方法。 - 前記動作特性値は、前記第1バッテリーパック~第nバッテリーパックの電圧測定値をさらに含み、
前記(b)段階は、
(b1)前記第1バッテリーパック~第nバッテリーパックの電流測定値及び電圧測定値から前記第1バッテリーパック~第nバッテリーパックのパック抵抗を決定する段階と、
(b2)各バッテリーパックに対し、予め定義されたパック抵抗-可用出力ルックアップテーブルを参照してパック抵抗に対応する可用出力を決定する段階と、
(b3)可用出力のうちの最小値を最小可用出力として決定する段階と、を含む、請求項10に記載の並列マルチパックモジュールの出力制御方法。 - 前記(b)段階は、
(b1)前記第1センサユニット~第nセンサユニットから各バッテリーパックの電圧測定値及び電流測定値の入力を周期的に受ける段階と、
(b2)前記第1バッテリーパック~第nバッテリーパックの電流測定値及び電圧測定値から線形回帰分析法によって算出された電流変化対比電圧変化の平均比率を前記第1バッテリーパック~第nバッテリーパックのパック抵抗として決定する段階と、を含む、請求項11に記載の並列マルチパックモジュールの出力制御方法。 - 前記(b)段階は、
(b1)前記第1センサユニット~第nセンサユニットから受信する各バッテリーパックの動作特性値に基づいて前記第1バッテリーパック~第nバッテリーパックの充電状態(SOC)を決定する段階と、
(b2)予め定義された充電状態-可用出力ルックアップテーブルを参照して前記第1バッテリーパック~第nバッテリーパックの充電状態に対応する可用出力を決定する段階と、
(b3)可用出力のうちの最小値を最小可用出力として決定する段階と、を含む、請求項10から12のいずれか一項に記載の並列マルチパックモジュールの出力制御方法。
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