JP5381664B2 - 組電池の異常検出装置 - Google Patents
組電池の異常検出装置 Download PDFInfo
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- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- 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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/005—Detection of state of health [SOH]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
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- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Tests Of Electric Status Of Batteries (AREA)
- Battery Mounting, Suspending (AREA)
Description
図3を参照して、電池セルの内部抵抗は、バッテリ電流Ibによって生じる、開放電圧Voからの電圧降下によって検出できる。すなわち、電池セルの出力電圧Vcは、内部抵抗に相当する傾きに従って、バッテリ電流Ibの増大に応じて低下することとなる。
(1)式において、Ippは、正弦波電流と仮定した電流リップルのピーク−ピーク値(振幅の2倍)に相当し、Tsは電流リップルの周期に相当する。
Claims (4)
- 直列接続された複数の電池セルを有する組電池の異常検出装置であって、
前記複数の電池セルのそれぞれに対応して設けられ、各々が対応の電池セルの出力電圧と所定の判定電圧との電圧比較を実行するように構成された複数の検知ユニットと、
前記複数の電池セルの電流を検出するための電流検出器とを備え、
前記複数の検知ユニットは、開始トリガに応答して順次動作するとともに前記電圧比較の結果を反映した信号を順次伝達することによって、前記複数の電池セルのいずれかの出力電圧が前記判定電圧よりも低下したか否かを示す異常検出信号を出力するように構成され、
前記異常検出装置は、
前記複数の検知ユニットからの前記異常検出信号と、前記電流検出器による電流検出値に基づいて、前記複数の電池セルのいずれかで内部抵抗が上限値よりも上昇する内部抵抗異常が発生したか否かを監視する異常監視回路をさらに備え、
前記異常監視回路は、
所定のサンプリング周期に従って、前記電流検出器による電流検出値を所定の複数回サンプリングするための電流サンプリング部と、
前記判定電圧を前記内部抵抗の前記上限値で除算した電流値に相当する判定電流に対して、前記電流のリップル成分を反映した電流修正量を設定する修正量設定部と、
前記異常検出信号によって前記複数の電池セルのいずれかの出力電圧が前記判定電圧よりも低下したことが示された場合に、前記電流サンプリング部による複数の電流サンプリング値のうちの最大値が、前記判定電流から前記電流修正量を減算した電流値よりも低いときに、前記内部抵抗異常の発生を検知するための電流比較部とを含み、
前記電流サンプリング部は、前記複数の検知ユニットにおける前記複数の電池セルにおける電圧比較の開始から、前記サンプリング周期の半周期以下の所定時間が経過したタイミングに、第1回目の電流サンプリングタイミングを設定し、
最終の電流サンプリングタイミングが、前記複数の検知ユニットにおける電圧比較の終了よりも、前記サンプリング周期の半周期以下の所定時間だけ前のタイミングに位置するように、前記サンプリング周期は設定される、組電池の異常検出装置。 - 前記修正量設定部は、前記半周期の位相ずれによって生じる、前記リップル成分による電流変動量に応じて、前記電流修正量を設定するように構成される、請求項1記載の組電池の異常検出装置。
- 前記修正量設定部は、前記リップル成分を正弦波電流とみなしたときの前記組電池の最大出力時における電流振幅と、前記リップル成分の周期に対する前記半周期の比とに基づいて、前記電流修正量を設定するように構成される、請求項2記載の組電池の異常検出装置。
- 前記複数の検知ユニットは、第1番目から第n番目(n:2以上の整数)の検知ユニットを含み、
前記第1番目の検知ユニットは、前記開始トリガに応答して作動して、第1番目の電池セルが前記判定電圧よりも低下しているか否かを示す信号を第2番目の検知ユニットへ伝達し、
第i番目(i:2〜nの整数)の検知ユニットは、
第i番目の電池セルの出力電圧と前記判定電圧との電圧比較結果を出力するための電圧比較器と、
第(i−1)番目の検知ユニットから伝達された前記信号と、前記電圧比較器の出力信号とに基づいて、第1番目から第i番目までの電池セルのいずれかの出力電圧が前記判定電圧よりも低下しているか否かを示す前記信号を出力するように構成された論理演算回路とを有し、
前記異常検出信号は、前記第n番目の検知ユニットの前記論理演算回路から出力された前記信号に従って生成される、請求項1〜3のいずれか1項に記載の組電池の異常検出装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009274495A JP5381664B2 (ja) | 2009-12-02 | 2009-12-02 | 組電池の異常検出装置 |
CN201080055117.XA CN102656048B (zh) | 2009-12-02 | 2010-11-18 | 用于电池组件的异常检测系统 |
PCT/IB2010/002942 WO2011067646A1 (en) | 2009-12-02 | 2010-11-18 | Abnormality detecting system for battery assembly |
US13/513,286 US8963551B2 (en) | 2009-12-02 | 2010-11-18 | Abnormality detecting system for battery assembly |
EP10803624.5A EP2507087B1 (en) | 2009-12-02 | 2010-11-18 | Abnormality detecting system for battery assembly |
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JP2009274495A JP5381664B2 (ja) | 2009-12-02 | 2009-12-02 | 組電池の異常検出装置 |
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JP2011117796A JP2011117796A (ja) | 2011-06-16 |
JP5381664B2 true JP5381664B2 (ja) | 2014-01-08 |
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EP (1) | EP2507087B1 (ja) |
JP (1) | JP5381664B2 (ja) |
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WO (1) | WO2011067646A1 (ja) |
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- 2010-11-18 EP EP10803624.5A patent/EP2507087B1/en not_active Not-in-force
- 2010-11-18 CN CN201080055117.XA patent/CN102656048B/zh not_active Expired - Fee Related
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CN102656048B (zh) | 2014-11-12 |
US20120242344A1 (en) | 2012-09-27 |
US8963551B2 (en) | 2015-02-24 |
EP2507087B1 (en) | 2014-12-17 |
EP2507087A1 (en) | 2012-10-10 |
WO2011067646A1 (en) | 2011-06-09 |
JP2011117796A (ja) | 2011-06-16 |
CN102656048A (zh) | 2012-09-05 |
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