JP7244189B2 - バッテリー充電状態推定方法およびこれを適用したバッテリー管理システム - Google Patents
バッテリー充電状態推定方法およびこれを適用したバッテリー管理システム Download PDFInfo
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- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/14—Preventing excessive discharging
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- B60L58/18—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
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- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
- G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
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- G—PHYSICS
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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
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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
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- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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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
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only 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]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- H01M10/00—Secondary cells; Manufacture thereof
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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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
- H01M10/44—Methods for charging or discharging
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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
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0018—Circuits for equalisation of charge between batteries using separate charge circuits
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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
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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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
- 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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- 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
- 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
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- H—ELECTRICITY
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- 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
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Description
本出願は、2019年10月31日付韓国特許出願第10-2019-0137548号に基いた優先権の利益を主張し、当該韓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組み含まれる。
10:バッテリーモジュール組立体
20:電流センサー
30:リレー
40:BMS
41:セルモニタリングIC
43:メイン制御回路
Claims (9)
- 複数のバッテリーセルを含むバッテリーモジュールを複数個含むバッテリーモジュール組立体のSOC(state of charge)推定方法において、
電流センサーからバッテリー電流を受信する段階;
前記バッテリー電流と閾値を比較し、比較結果により第1または第2充電状態推定方法を選択する段階;
前記選択された充電状態推定方法により前記複数のバッテリーセルのSOCを推定する段階;および
前記推定された複数のバッテリーセルのSOCに基づいて前記バッテリーモジュール組立体のSOCを推定する段階を含み、
前記複数のバッテリーセルのSOCを推定する段階は、
前記第1充電状態推定方法により前記バッテリーモジュール単位でSOCを推定する段階;および
前記第2充電状態推定方法により離散で区分される前記バッテリーモジュールの代表値のそれぞれに対応するSOC間のSOC偏差に基づいて前記複数のバッテリーセルのSOCを推定する段階を含み、
前記第1充電状態推定方法でSOCを推定する段階は、
選択バッテリーモジュールを構成する複数のバッテリーセルのSOCを推定する段階;および
非選択バッテリーモジュールを構成する複数のバッテリーセルの現在SOCは直前SOCに代替して推定する段階を含む
バッテリー充電状態推定方法。 - 前記第1または第2充電状態推定方法を選択する段階は、
前記バッテリー電流が前記閾値より小さいかまたは同一であれば前記第1充電状態推定方法を選択し、前記バッテリー電流が前記閾値を超えれば前記第2充電状態推定方法を選択する段階を含む、請求項1に記載のバッテリー充電状態推定方法。 - 前記第2充電状態推定方法でSOCを推定する段階は、
前記SOC偏差を前記複数のバッテリーセルの直前SOCにそれぞれ合算して前記バッテリーモジュールを構成する複数のバッテリーセルの現在SOCを推定する段階を含む、請求項1または2に記載のバッテリー充電状態推定方法。 - 前記SOC偏差は、
前記代表値に対応して推定された現在SOCと直前SOC間の偏差である段階を含む、請求項3に記載のバッテリー充電状態推定方法。 - 複数のバッテリーセルを含むバッテリーモジュールを複数個含むバッテリーモジュール組立体のSOC(state of charge)を推定するバッテリー管理システムにおいて、
前記複数のバッテリーセルそれぞれの両端に連結されて前記複数のバッテリーセルのセル電圧を測定するセルモニタリングIC;および
前記測定されたセル電圧に基づいて前記複数のバッテリーセルのSOCを推定して統合して前記バッテリーモジュール組立体のSOCを推定するメイン制御回路を含み、
前記メイン制御回路は、電流センサーからバッテリー電流を受信して閾値と比較し、比較結果により第1または第2充電状態推定方法を選択し、選択された方法により前記複数のバッテリーセルのSOCを推定し、
前記メイン制御回路は、
前記第1充電状態推定方法において、
選択バッテリーモジュールを構成する複数のバッテリーセルのSOCを推定し、
非選択バッテリーモジュールを構成する複数のバッテリーセルの現在SOCは直前SOCに代替して推定し、
前記第2充電状態推定方法において、
離散で区分される前記バッテリーモジュールの代表値のそれぞれに対応するSOC間のSOC偏差に基づいて前記複数のバッテリーセルのSOCを推定する
バッテリー管理システム。 - 前記メイン制御回路は、
前記バッテリー電流が前記閾値より小さいかまたは同一であれば前記バッテリーモジュール単位でSOCを推定する前記第1充電状態推定方法を選択し、前記バッテリー電流が前記閾値を超えれば前記第2充電状態推定方法を選択する、請求項5に記載のバッテリー管理システム。 - 前記メイン制御回路は、
前記第2充電状態推定方法により前記SOC偏差を前記複数のバッテリーセルの直前SOCにそれぞれ合算して前記バッテリーモジュールを構成する複数のバッテリーセルの現在SOCを推定する、請求項6に記載のバッテリー管理システム。 - 前記SOC偏差は、
前記代表値に対応して推定された現在SOCと直前SOC間の偏差である、請求項7に記載のバッテリー管理システム。 - バッテリーモジュール組立体の複数のバッテリーモジュールの各々に含まれる複数のバッテリーセルのSOC(state of charge)推定方法において、
電流センサーからバッテリー電流を受信する段階;
前記バッテリー電流と閾値を比較し、比較結果により第1または第2充電状態推定方法を選択する段階;および
前記選択された充電状態推定方法により前記複数のバッテリーセルのSOCを推定する段階を含み、
前記複数のバッテリーセルのSOCを推定する段階は、
前記第1充電状態推定方法により前記バッテリーモジュール単位でSOCを推定する段階;および
前記第2充電状態推定方法により離散で区分される前記バッテリーモジュールの代表値のそれぞれに対応するSOC間のSOC偏差に基づいて前記複数のバッテリーセルのSOCを推定する段階を含み、
前記第1充電状態推定方法でSOCを推定する段階は、
選択バッテリーモジュールを構成する複数のバッテリーセルのSOCを推定する段階;および
非選択バッテリーモジュールを構成する複数のバッテリーセルの現在SOCは直前SOCに代替して推定する段階を含む
バッテリー充電状態推定方法。
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KR10-2019-0137548 | 2019-10-31 | ||
KR1020190137548A KR20210051809A (ko) | 2019-10-31 | 2019-10-31 | 배터리 충전상태 추정방법 및 이를 적용한 배터리 관리 시스템 |
PCT/KR2020/013043 WO2021085869A1 (ko) | 2019-10-31 | 2020-09-25 | 배터리 충전상태 추정방법 및 이를 적용한 배터리 관리 시스템 |
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CN (1) | CN113544895B (ja) |
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Citations (6)
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WO2011118039A1 (ja) | 2010-03-26 | 2011-09-29 | 三菱電機株式会社 | 充電状態推定装置 |
JP2011223722A (ja) | 2010-04-08 | 2011-11-04 | Denso Corp | 電池電圧監視装置 |
JP2012133757A (ja) | 2010-12-10 | 2012-07-12 | Dspace Digital Signal Processing & Control Engineering Gmbh | バッテリをリアルタイムにシミュレーションする方法および装置 |
WO2013031559A1 (ja) | 2011-08-30 | 2013-03-07 | 三洋電機株式会社 | バッテリシステム、電動車両、移動体、電力貯蔵装置および電源装置 |
JP2016102674A (ja) | 2014-11-27 | 2016-06-02 | 三菱自動車工業株式会社 | 電池パックの異常判定装置 |
US20170045587A1 (en) | 2015-08-13 | 2017-02-16 | Samsung Electronics Co., Ltd. | Apparatus and method for state of charge (soc) determination for battery |
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JP2011223722A (ja) | 2010-04-08 | 2011-11-04 | Denso Corp | 電池電圧監視装置 |
JP2012133757A (ja) | 2010-12-10 | 2012-07-12 | Dspace Digital Signal Processing & Control Engineering Gmbh | バッテリをリアルタイムにシミュレーションする方法および装置 |
WO2013031559A1 (ja) | 2011-08-30 | 2013-03-07 | 三洋電機株式会社 | バッテリシステム、電動車両、移動体、電力貯蔵装置および電源装置 |
JP2016102674A (ja) | 2014-11-27 | 2016-06-02 | 三菱自動車工業株式会社 | 電池パックの異常判定装置 |
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CN113544895B (zh) | 2024-05-10 |
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JP2022534831A (ja) | 2022-08-04 |
KR20210051809A (ko) | 2021-05-10 |
US20220155380A1 (en) | 2022-05-19 |
EP3923006B1 (en) | 2023-11-29 |
HUE065046T2 (hu) | 2024-04-28 |
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