JP7259085B2 - バッテリー状態診断装置及び方法 - Google Patents
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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]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3828—Arrangements for monitoring battery or accumulator variables, e.g. SoC using current integration
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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]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
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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]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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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]
- G01R31/382—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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/12—Measuring rate of change
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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]
- G01R31/3644—Constructional arrangements
- G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
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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]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
-
- 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]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
-
- 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]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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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
- H01M10/4285—Testing apparatus
-
- 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
- H01M10/44—Methods for charging or discharging
-
- 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
-
- 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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- 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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- Chemical Kinetics & Catalysis (AREA)
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- Microelectronics & Electronic Packaging (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)
Description
10:バッテリーモジュール
10a:第1バッテリーモジュール
10b:第2バッテリーモジュール
100:バッテリー状態診断装置
110:充放電部
120:測定部
130:制御部
140:保存部
Ref:基準モジュール
Claims (6)
- 一つ以上のバッテリーセルが備えられたバッテリーモジュールの状態を診断するバッテリー状態診断装置であって、
前記バッテリーモジュールを充電または放電させるように構成された充放電部と、
前記バッテリーモジュールの充電または放電のサイクル中に、所定の周期毎に前記バッテリーモジュールの電流を測定するように構成された測定部と、
前記測定部から前記バッテリーモジュールの電流に対する測定値を受信し、受信した測定値に基づいて前記サイクル中の前記バッテリーモジュールの充電状態を推定し、推定された充電状態の変化率を算出し、算出された充電状態の変化率と既に設定された基準変化率とを比較した結果に基づいて前記バッテリーモジュールの欠陥発生を判断するように構成された制御部と、を含み、
前記制御部は、前記推定された充電状態の瞬間変化率を算出し、前記算出された瞬間変化率から複数のピークを決定し、決定された複数のピークのうち前記サイクルの中間時点に最も近いピークをターゲットピークとして選択し、選択されたターゲットピークを前記基準変化率の基準ピークと比較して前記バッテリーモジュールの欠陥発生を判断するように構成されている、バッテリー状態診断装置。 - 前記バッテリーモジュールは、複数個備えられ、
前記制御部は、前記複数のバッテリーモジュールのそれぞれに対する充電状態の瞬間変化率を算出し、前記複数のバッテリーモジュールのそれぞれの瞬間変化率からターゲットピークを選択し、選択された複数のターゲットピークの大きさを比較することで、前記複数のバッテリーモジュールの相対的な欠陥発生程度を判断するように構成されている、請求項1に記載のバッテリー状態診断装置。 - 前記複数のターゲットピークは、対応するバッテリーモジュールの充放電サイクルの中間時点に最も近いピークであって、相異なる時点に位置する、請求項2に記載のバッテリー状態診断装置。
- 前記制御部は、前記選択された複数のターゲットピークのうち対応するターゲットピークが大きいほど、バッテリーモジュールの欠陥発生程度が大きいと判断するように構成されている、請求項2または3に記載のバッテリー状態診断装置。
- 請求項1から4のいずれか一項に記載のバッテリー状態診断装置を含むバッテリーパック。
- 一つ以上のバッテリーセルが備えられたバッテリーモジュールの状態を診断するバッテリー状態診断方法であって、
前記バッテリーモジュールを充電または放電させる充放電段階と、
前記バッテリーモジュールの充電または放電のサイクル中に、所定の周期毎に前記バッテリーモジュールの電流を測定する測定段階と、
前記測定段階で測定された測定値に基づいて前記サイクル中の前記バッテリーモジュールの充電状態を推定する充電状態推定段階と、
前記充電状態推定段階で推定された充電状態の変化率を算出する充電状態変化率算出段階と、
前記充電状態変化率算出段階で算出された変化率と既に設定された基準変化率とを比較した結果に基づいて前記バッテリーモジュールの欠陥発生を判断するバッテリーモジュール欠陥判断段階と、を含み、
前記バッテリーモジュールは、複数個備えられ、
前記充電状態変化率算出段階は、複数のバッテリーモジュールのそれぞれに対する充電状態の瞬間変化率を算出する瞬間変化率算出段階を含み、
前記バッテリーモジュール欠陥判断段階は、
前記充電状態変化率算出段階で算出された前記複数のバッテリーモジュールのそれぞれの瞬間変化率からターゲットピークを選択するターゲットピーク選択段階と、
選択された複数のターゲットピークの大きさを比較することで前記複数のバッテリーモジュールの相対的な欠陥発生程度を判断する相対的欠陥判断段階と、を含む、バッテリー状態診断方法。
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DE112021007155T5 (de) | 2021-02-25 | 2023-12-07 | Mitsubishi Electric Corporation | Speicherbatterie-diagnosesystem |
KR20220167847A (ko) * | 2021-06-14 | 2022-12-22 | 주식회사 엘지에너지솔루션 | 배터리 관리 시스템, 배터리 팩, 전기 차량 및 배터리 관리 방법 |
DE102022115777A1 (de) * | 2022-06-24 | 2024-01-04 | Accure Battery Intelligence Gmbh | Verfahren und System zur Früherkennung von kritischen Fehlern einer Batterie |
FR3137457A1 (fr) * | 2022-07-04 | 2024-01-05 | Powerup | Procédé de détection d'un risque de défaillance par déséquilibre d'un dispositif de stockage d'énergie comprenant un ensemble d’étages de cellules électrochimiques |
KR102666899B1 (ko) * | 2023-05-12 | 2024-05-17 | 주식회사 비엘비 | 전압의 특성 변화를 기반으로 하는 배터리 내적 상태 정밀 진단시스템 및 방법 |
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- 2020-11-26 CN CN202080030524.9A patent/CN113767293B/zh active Active
- 2020-11-26 WO PCT/KR2020/017006 patent/WO2021107655A1/ko unknown
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WO2014115513A1 (ja) | 2013-01-22 | 2014-07-31 | 三洋電機株式会社 | 電池モジュールの故障推定システム |
JP2016164512A (ja) | 2015-03-06 | 2016-09-08 | 日本電気株式会社 | バッテリ寿命検出装置、蓄電装置、バッテリ寿命検出方法及びプログラム |
KR101930646B1 (ko) | 2017-11-22 | 2019-03-11 | 주식회사 포스코아이씨티 | 이차 미분 전압곡선을 이용한 배터리 용량 추정 장치 및 방법 |
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JP2023086771A (ja) | 2023-06-22 |
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KR20210064931A (ko) | 2021-06-03 |
WO2021107655A1 (ko) | 2021-06-03 |
CN113767293B (zh) | 2023-11-10 |
US20220317192A1 (en) | 2022-10-06 |
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EP3988953A1 (en) | 2022-04-27 |
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