JP2023141211A - バッテリ回路、セルバランス制御システム、状態推定装置 - Google Patents
バッテリ回路、セルバランス制御システム、状態推定装置 Download PDFInfo
- Publication number
- JP2023141211A JP2023141211A JP2022047415A JP2022047415A JP2023141211A JP 2023141211 A JP2023141211 A JP 2023141211A JP 2022047415 A JP2022047415 A JP 2022047415A JP 2022047415 A JP2022047415 A JP 2022047415A JP 2023141211 A JP2023141211 A JP 2023141211A
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- JP
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- Prior art keywords
- cell
- target cell
- target
- series
- voltage value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001453 impedance spectrum Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 10
- 230000007423 decrease Effects 0.000 description 9
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
-
- 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
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- 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
-
- 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
-
- 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
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
Description
2:セルバランス回路
3:セル群
4:抵抗群
5:断接部
10:セルバランス制御装置
13:スイッチ制御部(断接制御部)
20:状態推定装置
21:スイッチ制御部(断接制御部)
C:電気セル
SA:セル側スイッチ
SB:抵抗側スイッチ
SC:中間スイッチ
R:抵抗
Claims (3)
- 直列接続された複数の電池セルから構成されるセル群と、
直列接続された複数の抵抗から構成される抵抗群と、
前記セル群と前記抵抗群とを切断可能に接続する断接部と、を備え、
前記断接部は、前記複数の電池セルのうち任意の1つの対象セルに直列接続される前記抵抗の数を変更可能に構成される
ことを特徴とするバッテリ回路。 - 請求項1に記載のバッテリ回路を備え、前記対象セルを放電することによってセルバランスを調整するセルバランス制御システムであって、
セルバランスの調整開始時は前記対象セルに所定数の前記抵抗を直列接続し、セルバランスの調整開始時から所定時間が経過した後は前記対象セルに直列接続する前記抵抗の数を前記所定数から増加するように前記断接部を制御する断接制御部を備える
ことを特徴とするセルバランス制御システム。 - 請求項1に記載のバッテリ回路の前記対象セルを通流する電流を検出し、前記対象セルの電圧を検出し、同一のタイミングに検出された電流及び電圧それぞれの波形に含まれる周波数成分に基づいて、前記対象セルの内部インピーダンスのインピーダンススペクトルを算出し、算出したインピーダンススペクトルに基づいて、前記対象セルの状態を推定する状態推定装置であって、
前記対象セルに1つの前記抵抗を直列接続するように前記断接部を制御する断接制御部を備える
ことを特徴とする状態推定装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022047415A JP2023141211A (ja) | 2022-03-23 | 2022-03-23 | バッテリ回路、セルバランス制御システム、状態推定装置 |
DE102023106573.4A DE102023106573A1 (de) | 2022-03-23 | 2023-03-16 | Batterieschaltung, zellenausgleichssteuerungssystem und zustandsabschätzungsvorrichtung |
CN202310271093.0A CN116805809A (zh) | 2022-03-23 | 2023-03-20 | 电池电路、单体平衡控制系统、状态推断装置 |
US18/187,051 US20230327461A1 (en) | 2022-03-23 | 2023-03-21 | Battery circuit, cell balance control system, and state estimation apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022047415A JP2023141211A (ja) | 2022-03-23 | 2022-03-23 | バッテリ回路、セルバランス制御システム、状態推定装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2023141211A true JP2023141211A (ja) | 2023-10-05 |
Family
ID=87930687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022047415A Pending JP2023141211A (ja) | 2022-03-23 | 2022-03-23 | バッテリ回路、セルバランス制御システム、状態推定装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20230327461A1 (ja) |
JP (1) | JP2023141211A (ja) |
CN (1) | CN116805809A (ja) |
DE (1) | DE102023106573A1 (ja) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7067139B2 (ja) | 2018-03-08 | 2022-05-16 | いすゞ自動車株式会社 | セルバランス制御装置およびセルバランス制御システム |
JP2021047032A (ja) | 2019-09-17 | 2021-03-25 | いすゞ自動車株式会社 | 推定装置、推定方法、及び車両 |
-
2022
- 2022-03-23 JP JP2022047415A patent/JP2023141211A/ja active Pending
-
2023
- 2023-03-16 DE DE102023106573.4A patent/DE102023106573A1/de active Pending
- 2023-03-20 CN CN202310271093.0A patent/CN116805809A/zh active Pending
- 2023-03-21 US US18/187,051 patent/US20230327461A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US20230327461A1 (en) | 2023-10-12 |
CN116805809A (zh) | 2023-09-26 |
DE102023106573A1 (de) | 2023-09-28 |
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