JP6029745B2 - 二次電池の充電状態推定装置及び二次電池の充電状態推定方法 - Google Patents
二次電池の充電状態推定装置及び二次電池の充電状態推定方法 Download PDFInfo
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- JP6029745B2 JP6029745B2 JP2015507980A JP2015507980A JP6029745B2 JP 6029745 B2 JP6029745 B2 JP 6029745B2 JP 2015507980 A JP2015507980 A JP 2015507980A JP 2015507980 A JP2015507980 A JP 2015507980A JP 6029745 B2 JP6029745 B2 JP 6029745B2
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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]
- G01R31/382—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
- 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
- G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
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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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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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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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Secondary Cells (AREA)
- Tests Of Electric Status Of Batteries (AREA)
- Control Of Charge By Means Of Generators (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Description
電流合成値算出部、15 推定用時間設定部、16 内部抵抗推定部、17 充電状態推定部、18 電流積算部、19 電池状態推定部。
Claims (5)
- 短時間の間に充放電が繰り返される二次電池の充電状態値SOCを推定する充電状態推定装置であって、
予め定めたサンプリング間隔の時間で前記二次電池の充放電電流値及び、端子間電圧値を取得する電流値電圧値取得部と、
時間tで取得された前記充放電電流値I(t)について、予め定められる電流合成方法によって前記時間tより前の充放電状態を反映させた電流合成値Iw(t)を算出する電流合成値算出部と、
前記電流合成値Iw(t)が予め定めた閾値範囲内となる時間t=Tを充電状態推定のための推定用時間として設定する推定用時間設定部と、
前記推定用時間Tにおける前記二次電池の前記端子間電圧値V(T)及び、前記充放電電流値I(T)、並びにnを1以上の自然数として前記推定用時間Tより前のサンプリング時間(T−n)における前記二次電池の前記端子間電圧値V(T−n)及び、前記充放電電流値I(T−n)に基づいて前記二次電池の内部抵抗値Rを推定する内部抵抗推定部と、
前記推定用時間Tにおける前記二次電池の前記端子間電圧値V(T)及び、前記内部抵抗値Rに基づいて、前記二次電池の開放電圧値Vocを推定し、予め求めてある前記開放電圧値Vocと前記充電状態値SOCとの間の関係を示すVoc−SOC関係に基づき、前記二次電池の前記充電状態値SOCを推定する充電状態推定部と、
を備える、二次電池の充電状態推定装置。 - 請求項1に記載の二次電池の充電状態推定装置において、
前記電流合成値算出部は、予め定めた合成係数αを用いて、
前記時間tにおける前記電流合成値をIw(t)とし、前記時間Tより前のサンプリング時間(T−n)における前記電流合成値をIw(T−n)として、Iw(t)=αI(t)+(1−α)Iw(T−n)から前記電流合成値を算出する、二次電池の充電状態推定装置。 - 請求項2に記載の二次電池の充電状態推定装置において、
前記合成係数αは、前記二次電池の充放電特性に基づいて設定される、二次電池の充電状態推定装置。 - 請求項1から3のいずれか1に記載の二次電池の充電状態推定装置において、
異なる充放電運用時間についての複数の前記充電状態値SOCに基づいて、前記二次電池の初期状態の前記充放電状態値からの容量変化値を推定する容量変化値推定部を備える、二次電池の充電状態推定装置。 - 短時間の間に充放電が繰り返される二次電池の充電状態値SOCを推定する充電状態推定方法であって、
予め定めたサンプリング間隔の時間で前記二次電池の充放電電流値及び、端子間電圧値を取得し、
時間tで取得された前記充放電電流値I(t)について、予め定められる電流合成方法によって前記時間tより前の充放電状態を反映させた電流合成値Iw(t)を算出し、
前記電流合成値Iw(t)が予め定めた閾値範囲内となる時間t=Tを充電状態推定のための推定用時間として設定し、
前記推定用時間Tにおける前記二次電池の前記端子間電圧値V(T)及び、前記充放電電流値I(T)、並びにnを1以上の自然数として前記推定用時間Tより前のサンプリング時間(T−n)における前記二次電池の前記端子間電圧値V(T−n)及び、前記充放電電流値I(T−n)に基づいて前記二次電池の内部抵抗値Rを推定し、
前記推定用時間Tにおける前記二次電池の前記端子間電圧値V(T)及び、前記内部抵抗値Rに基づいて、前記二次電池の開放電圧値Vocを推定し、予め求めてある前記開放電圧値Vocと前記充電状態値SOCとの間の関係を示すVoc−SOC関係に基づき、前記二次電池の前記充電状態値SOCを推定する、二次電池の充電状態推定方法。
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PCT/JP2014/000512 WO2014155921A1 (ja) | 2013-03-28 | 2014-01-31 | 二次電池の充電状態推定装置及び二次電池の充電状態推定方法 |
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US11366169B2 (en) | 2018-02-01 | 2022-06-21 | Lg Energy Solution, Ltd. | Method for determining power limit of battery, and battery management system |
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US9987942B2 (en) * | 2014-09-03 | 2018-06-05 | Ford Global Technologies, Llc | Method of operating vehicle powertrain based on prediction of how different chemical type batteries connected in parallel will operate to output demanded current |
US10137797B2 (en) * | 2015-09-28 | 2018-11-27 | Ford Global Technologies, Llc | Battery state of charge estimation based on current pulse duration |
EP3279676B1 (en) * | 2016-08-04 | 2020-04-01 | Robert Bosch GmbH | Method and device for the detection of corrosion within an at least partially electrically conductive housing of an electric energy storage unit and corresponding electric energy storage system |
CN106646247B (zh) * | 2016-11-16 | 2019-12-24 | 上海派能能源科技股份有限公司 | 一种基于梯次利用电池组的检测方法及系统 |
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JP6834864B2 (ja) * | 2017-09-11 | 2021-02-24 | トヨタ自動車株式会社 | 電池出力監視装置及び方法 |
KR102259967B1 (ko) * | 2017-12-18 | 2021-06-02 | 주식회사 엘지에너지솔루션 | 배터리 충전관리 장치 및 방법 |
CN108092365B (zh) * | 2018-01-10 | 2022-05-10 | 中山大学 | 带电量评测的电池充电器 |
US11448704B2 (en) * | 2018-05-31 | 2022-09-20 | Sumitomo Electric Industries, Ltd. | Parameter estimation device, parameter estimation method, and computer program |
JP7271328B2 (ja) * | 2019-06-13 | 2023-05-11 | 本田技研工業株式会社 | 制御装置、制御方法、及びプログラム |
US11662387B1 (en) * | 2022-01-31 | 2023-05-30 | GM Global Technology Operations LLC | Battery state estimation using an equivalent constant current model of overpotential |
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- 2014-01-31 WO PCT/JP2014/000512 patent/WO2014155921A1/ja active Application Filing
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US11366169B2 (en) | 2018-02-01 | 2022-06-21 | Lg Energy Solution, Ltd. | Method for determining power limit of battery, and battery management system |
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CN105051559B (zh) | 2018-06-26 |
US20160216336A1 (en) | 2016-07-28 |
WO2014155921A1 (ja) | 2014-10-02 |
JPWO2014155921A1 (ja) | 2017-02-16 |
CN105051559A (zh) | 2015-11-11 |
US9897659B2 (en) | 2018-02-20 |
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