JP7242683B2 - バッテリパックにおける複数のバッテリセルの制御及び監視を行うための方法及び管理システム並びにバッテリパック - Google Patents
バッテリパックにおける複数のバッテリセルの制御及び監視を行うための方法及び管理システム並びにバッテリパック Download PDFInfo
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- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
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- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- B60L2240/00—Control parameters of input or output; Target parameters
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- B60L2240/549—Current
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- B60L2260/00—Operating Modes
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- B60L2260/44—Control modes by parameter estimation
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- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
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- B60Y2200/91—Electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Description
バッテリパックにおける複数のバッテリセルの制御及び監視を行う方法が提案される。このバッテリパックは、特に電気自動車で使用されることを想定している。このような電気自動車には、純粋に電気的に駆動される車両、ハイブリッド車、及びプラグインハイブリッド車が含まれてもよい。バッテリパックは、携帯電話、タブレットPC、ノートブック、又は電動工具などの家電製品にも使用することができる。バッテリパックのバッテリセルは、好ましくは、互いに直列に電気的に接続されている。
本発明は、バッテリパックのバッテリセルの安全で持続可能な動作のために重要なパラメータを、比較的簡単な方法で、比較的低い計算能力を用いて計算又は予測することを可能にする。前記パラメータは、とりわけ、バッテリセルを充電するための充電電流の限界値、バッテリセルから取り出すことができる最大電力、並びにバッテリセルに貯蔵可能な電気エネルギーを含む。前記パラメータを各バッテリセルについて別々に計算もしくは予測し、続いて、互いにリンクさせる必要なしに、前記パラメータを1度だけ計算又は予測すればよい。したがって、管理システムにおける計算能力及び所要メモリが有利に低減される。バッテリパックにおける全てのバッテリセルの安全で持続可能な動作が可能となるように上記パラメータが常に計算もしくは予測されることが保証される。
Claims (12)
- バッテリパック(5)における複数のバッテリセル(2)の制御及び監視を行う方法であって、
少なくとも1つの検出ユニット(20)が、各バッテリセル(2)から状態変数のデータセットを検出して選択ユニット(32)に送信し、
前記選択ユニット(32)が、前記状態変数の複数のデータセットから、状態変数の仮想データセットを構成する個々の状態変数を選択し、
シミュレーションユニット(34)が、仮想データセットの当該選択された状態変数から、バッテリセルのシミュレーションをした仮想セル(8)のモデルを生成し、
データ処理ユニット(36)が、前記仮想セル(8)の仮想データセットの当該選択された状態変数から、前記バッテリパック(5)における複数のバッテリセル(2)を充電するための充電電流(I)の限界値を計算する、方法。 - 請求項1に記載の方法であって、前記選択ユニット(32)が、前記状態変数の当該複数のデータセットから、前記仮想セル(8)の起こり得る最も劣悪な状態を表す状態変数を選択する、方法。
- 請求項1又は2に記載の方法であって、エネルギー予測ユニット(37)が、前記仮想セル(8)の仮想データセットの当該選択された状態変数から前記バッテリセル(2)に貯蔵可能な電気エネルギーを予測する、方法。
- 請求項1から3までのいずれか1項に記載の方法であって、出力予測ユニット(38)が、前記仮想セル(8)の仮想データセットの当該選択された状態変数から、前記バッテリセル(2)から取り出すことができる最大電力を予測する、方法。
- 請求項1から4までのいずれか1項に記載の方法であって、
前記バッテリーセル(2)の状態変数の各データセットが、少なくとも
前記バッテリーセル(2)の電圧、
前記バッテリーセル(2)の温度、
前記バッテリーセル(2)のアノード(11)の過電圧、
前記バッテリーセル(2)のカソード(12)の過電圧、
前記バッテリーセル(2)の当該アノード(11)の充電状態、及び
前記バッテリーセル(2)の当該カソード(12)の充電状態を含む、方法。 - 請求項1から5までのいずれか1項に記載の方法であって、
前記仮想セル(8)の状態変数の当該仮想データセットが、少なくとも
前記バッテリーセル(2)の電圧、
前記バッテリーセル(2)の温度、
前記バッテリーセル(2)のアノード(11)の過電圧、
前記バッテリーセル(2)のカソード(12)の過電圧、
前記バッテリーセル(2)の当該アノード(11)の充電状態、及び
前記バッテリーセル(2)の当該カソード(12)の充電状態を含む、方法。 - バッテリパック(5)における複数のバッテリセル(2)の制御及び監視を行う管理システム(30)であって、
送信されてきた状態変数の複数のデータセットから、状態変数の仮想データセットを構成する状態変数を選択する選択ユニット(32)と、
仮想データセットの当該選択された状態変数から、バッテリセルのシミュレーションをした仮想セル(8)のモデルを生成するシミュレーションユニット(34)と、
前記仮想セル(8)の仮想データセットの当該選択された状態変数から、前記バッテリパック(5)のバッテリセル(2)を充電するための充電電流(I)の限界値を計算するデータ処理ユニット(36)と
を備える管理システム(30)。 - 請求項7に記載の管理システム(30)であって、前記選択ユニット(32)は、前記状態変数の当該複数のデータセットから、前記仮想セル(8)の起こり得る最も劣悪な状態を表す状態変数を選択する、管理システム(30)。
- 請求項7又は8に記載の管理システム(30)であって、前記仮想セル(8)の仮想データセットの当該選択された状態変数から、前記バッテリセル(2)に貯蔵可能な電気エネルギーを予測するエネルギー予測ユニット(37)をさらに備える管理システム(30)。
- 請求項7から9までのいずれか1項に記載の管理システム(30)であって、前記仮想セル(8)の仮想データセットの当該選択された状態変数から、前記バッテリセル(2)から取り出すことができる最大電力を予測する出力予測ユニット(38)をさらに備える管理システム(30)。
- バッテリパック(5)であって、
請求項7から10までのいずれか1項に記載の管理システム(30)と、
互いに直列に接続された複数のバッテリセル(2)と、
各バッテリセル(2)の当該状態変数の1つのデータセットを検出し、該データセットを前記管理システム(30)の当該選択ユニット(32)に送信する少なくとも1つの検出ユニット(20)と
を備えるバッテリパック(5)。 - 請求項11に記載の少なくとも1つのバッテリパック(5)を備えた電気自動車における、請求項1から6までのいずれか1項に記載の方法の使用。
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PCT/EP2018/097110 WO2019134891A1 (de) | 2018-01-08 | 2018-12-28 | Verfahren und managementsystem zum steuern und überwachen von mehreren batteriezellen eines batteriepacks sowie batteriepack |
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