JP7351494B2 - バッテリー装置、バッテリー管理システムおよび連結状態診断方法 - Google Patents
バッテリー装置、バッテリー管理システムおよび連結状態診断方法 Download PDFInfo
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- G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
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- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H01M50/50—Current conducting connections for cells or batteries
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
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- B60—VEHICLES IN GENERAL
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- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
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- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
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Description
本出願は2020年10月12日付大韓民国特許出願第10-2020-0131092に基づいた優先権の利益を主張し、当該大韓民国特許出願の文献に開示された全ての内容は本明細書の一部として含まれる。
Claims (15)
- 複数のバッテリーモジュールと、前記複数のバッテリーモジュールのうちの二つのバッテリーモジュールを連結するバスバーを含むバッテリーパックと、
前記バッテリーパックの電流供給を制御するスイッチと、
前記バッテリーパックと前記スイッチを連結する配線と、
前記バスバーの電圧、前記バッテリーパックの電圧、および前記複数のバッテリーモジュールの電圧を測定する電圧測定回路と、
前記バッテリーパックの電流、前記バスバーの電圧、前記バッテリーパックの電圧、および前記複数のバッテリーモジュールの電圧に基づいて前記バスバーの連結状態および前記配線の連結状態を診断するプロセッサーと
を含むバッテリー装置。 - 前記プロセッサーは、前記バスバーの電圧と前記バッテリーパックの電流に基づいて前記バスバーの抵抗を計算し、前記バスバーの抵抗に基づいて前記バスバーの連結状態を診断する、請求項1に記載のバッテリー装置。
- 前記プロセッサーは、前記バスバーの抵抗が臨界値より大きい場合、前記バスバーの連結状態にエラーが発生したと診断する、請求項2に記載のバッテリー装置。
- 前記プロセッサーは、前記バスバーが前記二つのバッテリーモジュールのうちの一つのバッテリーモジュールと連結されるノードおよび前記バスバーが前記二つのバッテリーモジュールのうちの他のバッテリーモジュールと連結するノードの間の電圧に基づいて前記バスバーの電圧を測定する、請求項1から3のいずれか一項に記載のバッテリー装置。
- 前記プロセッサーは、
前記バスバーの電圧、前記バッテリーパックの電圧、および前記複数のバッテリーモジュールの電圧に基づいて前記配線の電圧を決定し、
前記配線の電圧と前記バッテリーパックの電流に基づいて前記配線の抵抗を計算し、
前記配線の抵抗に基づいて前記配線の連結状態を診断する、
請求項1から4のいずれか一項に記載のバッテリー装置。 - 前記プロセッサーは、前記配線の抵抗が臨界値より大きい場合、前記配線の連結状態にエラーが発生したと診断する、請求項5に記載のバッテリー装置。
- 前記スイッチは、第1スイッチおよび第2スイッチを含み、
前記配線は、前記バッテリーパックの正極端子と前記第1スイッチを連結する第1配線、および前記バッテリーパックの負極端子と前記第2スイッチを連結する第2配線を含み、
前記配線の電圧は、前記第1配線の電圧と前記第2配線の電圧を含む
請求項5または6に記載のバッテリー装置。 - 前記電圧測定回路は、前記第1配線と前記第1スイッチが連結される第1ノードと前記第2配線と前記第2スイッチが連結される第2ノードの間の電圧で前記バッテリーパックの電圧を測定する、請求項7に記載のバッテリー装置。
- 前記プロセッサーは、前記バッテリーパックの電圧から前記複数のバッテリーモジュールの電圧の合計と前記バスバーの電圧を引いた値に基づいて前記配線の電圧を決定する、請求項5から8のいずれか一項に記載のバッテリー装置。
- 前記バスバーは複数のバスバーを含み、
各バスバーは前記複数のバッテリーモジュールのうちの対応する二つのバッテリーモジュールを連結し、
前記プロセッサーは前記バッテリーパックの電圧から前記複数のバッテリーモジュールの電圧の合計と前記複数のバスバーの電圧の合計を引いた値に基づいて前記配線の電圧を決定する
請求項9に記載のバッテリー装置。 - 複数のバッテリーモジュールを含むバッテリー装置の連結状態診断方法であって、
バッテリーパックの電流を測定する段階と、
前記バッテリーパックの電圧を測定する段階と、
各バッテリーモジュールの電圧を測定する段階と、
前記複数のバッテリーモジュールのうちの二つのバッテリーモジュールを連結するバスバーの電圧を測定する段階と、
前記バッテリーパックの電流、前記バスバーの電圧、前記バッテリーパックの電圧および前記複数のバッテリーモジュールの電圧に基づいて、前記バスバーの連結状態および前記バッテリーパックに連結された配線の連結状態を診断する段階と
を含む連結状態診断方法。 - 前記連結状態を診断する段階は、
前記バスバーの電圧と前記バッテリーパックの電流に基づいて前記バスバーの抵抗を計算する段階と、
前記バスバーの抵抗に基づいて前記バスバーの連結状態を診断する段階と
を含む、請求項11に記載の連結状態診断方法。 - 前記連結状態を診断する段階は、
前記バスバーの電圧、前記バッテリーパックの電圧および前記複数のバッテリーモジュールの電圧に基づいて前記配線の電圧を決定する段階と、
前記配線の電圧と前記バッテリーパックの電流に基づいて前記配線の抵抗を計算する段階と、
前記配線の抵抗に基づいて前記配線の連結状態を診断する段階と
を含む、請求項11または12に記載の連結状態診断方法。 - 前記配線は前記バッテリーパックの正極端子と前記バッテリーパックの電流供給を制御する第1スイッチを連結する第1配線および前記バッテリーパックの負極端子と前記バッテリーパックの電流供給を制御する第2スイッチを連結する第2配線を含み、
前記バッテリーパックの電圧を測定する段階は、前記第1配線と前記第1スイッチが連結される第1ノードと前記第2配線と前記第2スイッチが連結される第2ノードの間の電圧で前記バッテリーパックの電圧を測定する段階を含む
請求項11から13のいずれか一項に記載の連結状態診断方法。 - 複数のバッテリーモジュールおよび前記複数のバッテリーモジュールのうちの二つのバッテリーモジュールを連結するバスバーを含むバッテリーパックと、前記バッテリーパックの電流供給を制御するスイッチと、前記バッテリーパックと前記スイッチを連結する配線とを含むバッテリー装置のバッテリー管理システムであって、
前記バスバーの電圧、前記バッテリーパックの電圧および前記複数のバッテリーモジュールの電圧を測定する電圧測定回路と、
前記バッテリーパックの電流、前記バスバーの電圧、前記バッテリーパックの電圧および前記複数のバッテリーモジュールの電圧に基づいて前記バスバーの連結状態および前記配線の連結状態を診断するプロセッサーと
を含むバッテリー管理システム。
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