JP6626703B2 - 電池パックにおける接触点を点検するための方法及びその装置 - Google Patents
電池パックにおける接触点を点検するための方法及びその装置 Download PDFInfo
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- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
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- B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
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- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage 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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- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
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- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
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- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
- H01M50/51—Connection only in series
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- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
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- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/517—Methods for interconnecting adjacent batteries or cells by fixing means, e.g. screws, rivets or bolts
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Description
Claims (20)
- 少なくとも第一電池セル及び第二電池セルと、
監視器を有する前記第一電池セルの第一電極を前記第二電池セルの第二電極に結合するための電力接続線とを備える電池パックであって、前記監視器は、
通信線を介して前記第二電池セルと信号の通信を行なうための送信機/受信機と、
前記電力接続線及び前記通信線に結合され、且つ前記電力接続線と前記通信線との電圧差を検出するための電圧差検出器とを備えており、
前記監視器は検出された電圧差が所定の閾値範囲を超える場合、前記電力接続線の接触点が劣化したという旨を表す指示を出すことを特徴とする電池パック。 - 前記監視器は、前記電圧差検出器に結合され、且つ検出された電圧を分析するためのデジタル回路をさらに備えることを特徴とする請求項1に記載の電池パック。
- 前記電圧差検出器は、前記送信機/受信機が前記通信線を介して信号を受信して通信を行っているときに前記電圧差を検出するよう配置されていることを特徴とする請求項1に記載の電池パック。
- 前記通信線を介する前記信号の通信は電流領域または電圧領域に行なわれており、且つ前記電圧差検出器は前記電力接続線と前記通信線とのDC電圧差を検出することを特徴とする請求項1に記載の電池パック。
- 前記接触点の劣化には、接触点の腐蝕、接触点の弛め、接触点の老化、及び接触点の汚染のうち少なくとも1つが含まれていることを特徴とする請求項1に記載の電池パック。
- 前記電池パックの操作を制御するための電池パック制御器をさらに備えており、
前記電池パック制御器は少なくとも前記第一電池セル及び前記第二電池セルとデイジーチェーン式通信線を介して通信することを特徴とする請求項1に記載の電池パック。 - 前記電圧差検出器には、比較器及びアナログデジタル変換器(ADC)のうち少なくとも1つを有していることを特徴とする請求項1に記載の電池パック。
- 前記電圧差検出器には、前記第一電池セルの両電極間の電圧または前記電力接続線と前記通信線との電圧差を交替に検出するためのアナログデジタル変換器(ADC)を有していることを特徴とする請求項1に記載の電池パック。
- 前記電圧差検出器にはシュミットトリガ回路を有していることを特徴とする請求項1に記載の電池パック。
- 前記監視器は前記第一電池セル内に集積され、且つ前記電圧差検出器は前記第一電池セルの第一電極に結合されており、或は
前記監視器は前記第一電池セルの外部に設置され、且つ前記電圧差検出器は前記電力接続線に結合されていることを特徴とする請求項1に記載の電池パック。 - 前記監視器は前記第一電池セルの他の電極に結合されている電圧差検出器をさらに有していることを特徴とする請求項1に記載の電池パック。
- 電池セルの電極に結合されて電力を転送する電力接続線と、
監視器とを備える電池セルであって、前記監視器は、
前記監視器からの信号の通信または前記監視器への信号の通信を行なうための送信機/受信機と、
前記電力接続線及び前記通信線に結合され、且つ前記電力接続線と前記通信線との電圧差を検出するための電圧差検出器とを備えており、
前記監視器は検出された電圧差が所定の閾値範囲を超える場合、前記電力接続線の接触点が劣化したという旨を表す指示を出すことを特徴とする電池セル。 - 前記電圧差検出器は、前記送信機/受信機が前記通信線を介して信号を受信して通信を行っているときに前記電圧差を検出するよう配置されていることを特徴とする請求項12に記載の電池セル。
- 前記接触点の劣化には、接触点の腐蝕、接触点の弛め、接触点の老化、及び接触点の汚染のうち少なくとも1つが含まれていることを特徴とする請求項12に記載の電池セル。
- 前記電圧差検出器には、比較器、アナログデジタル変換器(ADC)、及びシュミットトリガ回路のうち少なくとも1つを有していることを特徴とする請求項12に記載の電池セル。
- 前記監視器は前記電池セル内に、または前記電池セルの外部に集積されていることを特徴とする請求項12に記載の電池セル。
- 電力接続線を介して直列に結合された少なくとも第一電池セル及び第二電池セルを有している電池パックを監視する方法において、
前記電力接続線と、前記第一電池セルと前記第二電池セルとの間の信号の通信を行なうための通信線との電圧差を検出するステップと、
検出された電圧差が所定の閾値範囲を超える場合、前記電力接続線の接触点が劣化したという旨を表す指示を出すステップとを備えることを特徴とする電池パックを監視する方法。 - 前記第一電池セル及び前記第二電池セルのうち、前記信号を受信して通信を行っている電池セルにおいて、前記電力接続線と前記通信線との電圧差を検出するステップをさらに含むことを特徴とする請求項17に記載の方法。
- 前記接触点の劣化には、接触点の腐蝕、接触点の弛め、接触点の老化、及び接触点の汚染のうち少なくとも1つが含まれていることを特徴とする請求項17に記載の方法。
- 前記第一電池セルまたは前記第二電池セルの両電極間の電圧または前記電力接続線と前記通信線との電圧差を交替に検出するステップをさらに含むことを特徴とする請求項17に記載の方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US14/565,574 US10826138B2 (en) | 2014-12-10 | 2014-12-10 | Method and apparatus for contact detection in battery packs |
US14/565,574 | 2014-12-10 | ||
US14/807,414 | 2015-07-23 | ||
US14/807,414 US10620274B2 (en) | 2014-12-10 | 2015-07-23 | Method and apparatus for contact detection in battery packs |
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JP2016115678A JP2016115678A (ja) | 2016-06-23 |
JP6626703B2 true JP6626703B2 (ja) | 2019-12-25 |
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