WO2019142550A1 - Système de batterie rechargeable - Google Patents

Système de batterie rechargeable Download PDF

Info

Publication number
WO2019142550A1
WO2019142550A1 PCT/JP2018/045603 JP2018045603W WO2019142550A1 WO 2019142550 A1 WO2019142550 A1 WO 2019142550A1 JP 2018045603 W JP2018045603 W JP 2018045603W WO 2019142550 A1 WO2019142550 A1 WO 2019142550A1
Authority
WO
WIPO (PCT)
Prior art keywords
secondary battery
charge
temperature
state
battery
Prior art date
Application number
PCT/JP2018/045603
Other languages
English (en)
Japanese (ja)
Inventor
ソクチョル 申
耕平 本蔵
鈴木　修一
Original Assignee
日立オートモティブシステムズ株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日立オートモティブシステムズ株式会社 filed Critical 日立オートモティブシステムズ株式会社
Publication of WO2019142550A1 publication Critical patent/WO2019142550A1/fr

Links

Images

Classifications

    • 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
    • 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]
    • 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
    • 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
    • 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
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/12—Remote or cooperative charging

Definitions

  • the present invention relates to a secondary battery system.
  • a state detection device for detecting the state of the storage means is used to use the storage means safely and effectively.
  • the state of the storage means includes a state of charge (SOC) indicating how much the battery has been charged or how much the amount of charge that can be discharged remains, the temperature of the storage device, and the like.
  • One method of estimating the SOC is to measure and integrate the current value into and out of the battery.
  • the measurement error included in the measured value of the current is also integrated, there is a problem that the SOC error increases with the passage of time.
  • Patent Document 1 discloses the following invention.
  • the first SOC value is continuously calculated by integrating the charge / discharge current of the secondary battery to obtain the first integrated value and dividing the result by the capacity value of the secondary battery and adding it to the SOC initial value. .
  • the SOC at that time is determined as the second SOC value, and each time the second SOC value is determined,
  • the SOC initial value is updated with the second SOC value to restart the integration calculation of the first integrated value.
  • the SOC error which expands as the current measurement values are integrated, can be updated at the timing when charging and discharging are switched, so that the latest SOC value can be accurately estimated.
  • Patent No. 5051661 gazette
  • An object of the present invention is to estimate with high accuracy the state of charge of a secondary battery not provided with means for measuring or estimating temperature among a plurality of secondary batteries constituting a secondary battery system. is there.
  • the secondary battery system of the present invention comprises data of a plurality of secondary batteries connected in series, a current detection unit, a voltage detection unit, and an initial value of the charge state of the secondary battery and an initial value of the battery capacity. And a control unit for measuring or estimating the temperature of the first secondary battery that is at least one of the plurality of secondary batteries, and a control unit.
  • the controller calculates the temperature of the first secondary battery acquired by the temperature detector, the current calculated by the current detector, and the internal calculated from the voltage of the first secondary battery acquired by the voltage detector.
  • the charge state of the first secondary battery is calculated, and among the plurality of secondary batteries, the initial value of the charge state of the second secondary battery, which is a secondary battery that does not measure or estimate the temperature And data of initial value of battery capacity and charging of first secondary battery Using state, and calculates the state of charge of the second secondary battery.
  • the present invention among the plurality of secondary batteries constituting the secondary battery system, it is possible to estimate with high accuracy the state of charge of the secondary battery not provided with means for measuring or estimating temperature. it can.
  • Embodiment The secondary battery system is suitably applied to a hybrid vehicle (HEV), a plug-in hybrid vehicle (PHEV), an electric vehicle (EV) and the like.
  • HEV hybrid vehicle
  • PHEV plug-in hybrid vehicle
  • EV electric vehicle
  • FIG. 1 is a schematic configuration view showing a secondary battery system of the present invention and devices connected thereto.
  • secondary battery system 100 is connected to an inverter 400 that performs PWM control of motor generator 410 via relays 300 and 310. Also, the secondary battery system 100 is connected to the charger 420 via the relays 320 and 330.
  • the secondary battery system 100 includes an assembled battery 110, a single battery management unit 120, a current detection unit 130, a voltage detection unit 140, an assembled battery control unit 150, a storage unit 180, and an insulation element 170 represented by a photocoupler. There is.
  • the vehicle control unit 200 can communicate with the battery pack control unit 150, the charger 420 and the inverter 400.
  • the battery assembly 110 is composed of a plurality of unit cell groups. Here, although two unit cell groups 112a and 112b are shown, three or more may be sufficient. Each of the unit cell groups 112 a and 112 b is configured of a plurality of unit cells 111.
  • the current detection unit 130 detects the current flowing to the battery assembly 110.
  • the voltage detection unit 140 detects the voltage of the assembled battery 110.
  • the storage unit 180 In the storage unit 180, the fully charged capacity (battery capacity) of the battery pack 110, the cells 111, and the cell groups 112a and 112b, the correspondence relationship between the SOC and the open circuit voltage (OCV), the SOC Information such as various setting values necessary for estimation is stored. Furthermore, characteristic information of the unit cell management unit 120, the unit cell control units 121a and 121b, and the assembled battery control unit 150 can also be stored in the storage unit 180 in advance. Even if the operations of the secondary battery system 100, the assembled battery control unit 150, etc. are stopped, various information stored in the storage unit 180 is held. Note that the storage unit 180 stores an SOC table as indicating the correspondence between the SOC and the open circuit voltage.
  • the storage unit 180 has a database including data of the initial value of the SOC of the unit cell 111 (secondary battery) and the initial value of the battery capacity.
  • the database is data of SOC of unit cell 111, internal resistance and battery capacity under environmental conditions including a plurality of temperature conditions, in other words, map data showing the relationship of SOC of unit cell 111, internal resistance and temperature, and It is desirable to include corresponding battery capacity data. Further details will be described in the explanation of FIG.
  • the unit cell management unit 120 includes a unit cell control unit 121a corresponding to the unit cell group 112a and a unit cell control unit 121b corresponding to the unit cell group 112b.
  • the single cell control units 121a and 121b respectively measure the battery voltage and temperature of the single cells 111 constituting the single cell groups 112a and 112b, monitor whether or not an abnormality has occurred, and the like.
  • the unit cell management unit 120 indirectly manages the unit cell 111 by managing the unit cell control units 121a and 121b.
  • the battery pack control unit 150 In the battery pack control unit 150, the battery voltage or temperature of the battery 111 transmitted by the battery management unit 120 via the insulating element 170, the current value flowing to the battery assembly 110 transmitted by the current detector 130, the voltage detector 140 A voltage value of the battery pack 110 to be transmitted, a command appropriately transmitted by the vehicle control unit 200, and the like are received as signals.
  • the battery pack control unit 150 uses the unit cell management unit 120, the current detection unit 130, the voltage detection unit 140, the above-described signal received from the vehicle control unit 200, the SOC table stored in the storage unit 180, and the like. An operation for detecting the SOC, SOH, chargeable / dischargeable current or power, abnormal condition, charge / discharge amount, etc. of the assembled battery 110 is executed.
  • the assembled battery control unit 150 transmits a command for the single cell control units 121 a and 121 b to manage the single cells 111 and the single battery groups 112 a and 112 b to the single cell management unit 120 based on the above calculation result. Further, the battery pack control unit 150 transmits the above-described calculation result and a command based on the calculation result to the vehicle control unit 200, and stores the above-described calculation result in the storage unit 180 as necessary.
  • Vehicle control unit 200 controls inverter 400 and charger 420 using the information received from battery pack control unit 150. While the vehicle is traveling, secondary battery system 100 is connected to inverter 400, and uses the energy stored in assembled battery 110 to drive motor generator 410. At the time of charging, the secondary battery system 100 is connected to the charger 420 and charged by the power supply from a household power supply or a charging stand. At this time, the power from the charger 420 is stored in the battery pack 110.
  • the charger 420 is configured to control the charging voltage, the charging current, and the like based on a command from the vehicle control unit 200, but the control is performed based on the command from the assembled battery control unit 150. It is also good.
  • the charger 420 may be installed inside the vehicle or may be installed outside the vehicle according to the configuration of the vehicle, the performance of the charger 420, the purpose of use, the installation condition of the external power supply, etc. .
  • the secondary battery system 100 When the vehicle system having the secondary battery system 100 starts and travels, the secondary battery system 100 is connected to the inverter 400 under the management of the vehicle control unit 200, and the energy stored in the battery pack 110 is stored. Is used to drive the motor generator 410. At the time of regeneration, the battery pack 110 is charged by the power generated by the motor generator 410.
  • charging with the secondary battery system 100 is performed based on the information transmitted by the vehicle control unit 200.
  • the battery 420 is connected to charge the battery pack 110 until predetermined conditions are met.
  • the energy stored in the battery pack 110 by charging is used during the next travel of the vehicle or is also used to operate electrical components and the like inside and outside the vehicle. Furthermore, if necessary, it may be released to an external power source represented by a household power source.
  • FIG. 2 is a schematic configuration view showing one unit cell control unit.
  • the unit cell control unit 121i includes a voltage detection circuit 122 (voltage detection unit), a control circuit 123, a signal input / output circuit 124, and a temperature detection unit 125.
  • the voltage detection circuit 122 measures the inter-terminal voltage of each unit cell 111.
  • the temperature detection unit 125 measures or estimates the temperature of part or all of the unit cell group 112i, and handles the temperature as a temperature representative value of the unit cells 111 constituting the unit cell group 112i.
  • the temperature measured by the temperature detection unit 125 is used for various calculations for detecting the state of the unit cell 111, the unit cell group 112i, or the assembled battery 110.
  • the unit cell 111 which is the target of measurement or estimation of the temperature by the temperature detection unit 125 is referred to as “first secondary battery”.
  • the unit cell 111 which is not a target of measurement or estimation of the temperature by the temperature detection unit 125 is referred to as “second secondary battery”.
  • the control circuit 123 receives the measurement result from the voltage detection circuit 122 and the temperature detection unit 125, and transmits the measurement result to the battery pack control unit 150 (FIG. 1) via the signal input / output circuit 124. In addition, it is also possible to transmit information to the voltage detection circuit 122 and the temperature detection unit 125 based on the information from the signal input / output circuit 124.
  • the balancing circuit generally mounted on the cell control unit 121i and the periphery thereof, that is, a circuit for equalizing the voltage or SOC variation among the cell 111 generated due to self discharge, current consumption variation, etc. The description was omitted.
  • the secondary battery system includes the control unit such as the unit cell control unit 121i, the control circuit 123 included in the unit cell, and the battery pack control unit 150.
  • the control unit that performs control may be any of these. Therefore, when collectively referred to as “control unit” in the present specification, any one of the control units described above is referred to.
  • FIG. 3 is a graph of an example of the SOC table (database) stored in the storage unit 180 of FIG.
  • the horizontal axis represents the SOC of the unit cell 111 shown in FIG. 1, and the vertical axis represents the OCV of the unit cell 111.
  • the data format is arbitrary, it is shown here in graph format for the convenience of explanation.
  • the correspondence relationship between the OCV and the SOC can also be expressed by using a mathematical expression or the like. Other methods may be used as long as the method can convert OCV to SOC or SOC to OCV.
  • the OCV of the unit cell 111 is acquired, and the SOC at time t n when the OCV is acquired from the SOC table shown in FIG. 3 is acquired.
  • the SOC acquired from the SOC table is called "SOC v ".
  • the SOC v at time t n is represented by the following equation (1).
  • Map represents a function corresponding to the curve of FIG.
  • Q i is the full charge capacity of the unit cell 111 (FIG. 1).
  • the integral value (the value of the integral of the numerator in the equation, which is the change in charge in the time from time t n to time t) described in the above equation (2) is “ ⁇ S I ” or It is called "current integrated value”.
  • the above is a general SOC calculation method, which is called a current integration method.
  • the SOC i obtained by the above-described general SOC calculation method includes a first SOC error and a second SOC error described below.
  • the current detection unit 130 detects the charge / discharge current I (t) in a form including a measurement error. This means that the time integration value ⁇ SOC (t) of the charge and discharge current shown in the above equation (2) includes an error. Even if the charging / discharging current I (t) is a small error, as the integration time ⁇ SOC (t) is longer, the error is accumulated as the integration time ⁇ SOC (t) becomes, and a large error may occur. In the present specification, an error included in ⁇ SOC (t) is referred to as a “first SOC error”. As described later, in the present invention, the first SOC error is removed.
  • OCV is defined as an inter-terminal voltage in which no charge / discharge current occurs and no time variation occurs.
  • the inter-terminal voltage of the unit cell 111 is OCV.
  • the relays 300, 310, 320, 330 are closed but charging / discharging of the assembled battery 110 is not started, or even after it is started, it is left for a long time after charging / discharging is stopped.
  • the terminal-to-terminal voltage of the unit cell 111 can be regarded as OCV when the time does not change.
  • An object of the present invention is to remove the first SOC error included in ⁇ SOC (t). For this purpose, it is necessary to redetect the SOC from the battery voltage during use of the battery assembly 110 (the relays 300, 310, 320, and 330 are closed). However, as described above, there is little opportunity to acquire an OCV with the relays 300, 310, 320, 330 closed.
  • the temperature of at least one secondary battery constituting the assembled battery is obtained by the temperature sensor installed in the secondary battery or by estimation, and the SOCs of all the secondary batteries (unit cells) are obtained. Think about getting more accurate.
  • FIG. 4 is a flow chart showing a method of calculating the SOC and temperature of each unit cell in a battery pack composed of a plurality of secondary batteries (unit cells) connected in series.
  • a map (database) indicating the relationship between the SOC of the secondary battery, the direct current resistance R, and the temperature T is prepared (S100).
  • This map preferably corresponds to the deterioration of the battery.
  • the secondary battery is a single battery. Generally, even if the secondary batteries correspond to a unit cell group connected in series or in parallel, the concept shown in the figure can be applied similarly.
  • the map may be, for example, a test performed on the extracted single battery at the time of the product test, collecting detailed data, and collecting it as a database.
  • the extracted single battery and each of the plurality of single batteries actually used for the assembled battery are strictly different.
  • the values of SOC, resistance, temperature and the like calculated using the values contained in the database differ from the actual values of single cells, and strictly include errors. This error is different from the above first SOC error.
  • An error between such a map and the value of an actual single cell will be referred to as a "second SOC error".
  • the direct current resistance R i of each secondary battery is determined from the current I flowing to the secondary battery and the voltage V i at that time (S 110).
  • the subscript i represents the i-th secondary battery in series.
  • the voltage V i may be a value during energization, or a map may be used to obtain the internal resistance, which may be used as the direct current resistance R i .
  • DC resistance R i and temperature T sensor, i of a part or all of the secondary battery obtained by measurement or estimation are input to a map, and SOC sensor, i is output (S120).
  • This SOC sensor, i is not the SOC obtained from the integration of the charge / discharge current at which the error is accumulated, but the SOC output from the map created based on the result of measurement in advance using an actual secondary battery. , Is a value that does not cause accumulation of errors.
  • the temperature T sensor, i of the secondary battery is preferably measured using a temperature sensor.
  • "input to map” or “output from map” has the same meaning as "calculate using a map (database)".
  • the SOC of the same secondary battery as that targeted in S120 is separately calculated by the current integration method of the above formulas (2) and (3) (S130).
  • SOC int the SOC calculated by the current integration method
  • SOC int the SOC of the i-th secondary battery in series
  • SOC sensor, i is compared with SOC int, i (S140). If the values are not equal (if the difference between the values exceeds a predetermined value), the current integration value ⁇ S I of the above equation (2) is corrected so that the difference is less than or equal to the predetermined value ( S150). In other words, the error of ⁇ S I due to the error of the current detection unit (current sensor) is reduced.
  • the correction method may be such that SOC int, i which is the result of SOC calculation (S130) by the current integration method is replaced with SOC sensor, i , and the current integration value is calculated backward.
  • the SOC int, i and the direct current resistance R i of each secondary battery are input to the map, and the temperature T i of each secondary battery is output (S170).
  • the temperature of the secondary battery in which the temperature sensor is not provided can be estimated with high accuracy by acquiring the values of the map (temperature T i ) corresponding to the SOC int, i and R i .
  • the measured voltage V i may be used for the calculation.
  • the temperature of all the batteries can be grasped without installing the temperature sensors in all the batteries, and the cost can be reduced by reducing the temperature sensors.
  • the current can be limited in accordance with the temperature, it is possible to realize a highly safe and long-life secondary battery system.
  • grasping the temperature of each battery it is possible to efficiently cool the battery and to realize a long life and low cost secondary battery system.
  • the process of S130, S140, S150 and S160 shown in FIG. 4 is omitted, and the data of SOC sensor, i obtained in the process of S120 is used instead of SOC int, i in S170.
  • the temperature T i may be obtained using a map in the process.
  • the error of the temperature T i tends to be large because the correction is not made, the method of the present invention can be applied.
  • each configuration, function, processing unit, etc. can be realized as hardware by designing all or part of them with, for example, an integrated circuit, or a processor executes a program that realizes each function. It can also be realized as software by doing this.
  • Programs for realizing the respective functions, and information such as a table can be stored in a storage device such as a memory or a hard disk, or a storage medium such as an IC card or a DVD.
  • a single lithium ion secondary battery (secondary battery) is used as a single battery and this is connected in series to form a battery assembly
  • one secondary battery in which single batteries are connected in parallel is used as one secondary battery
  • It may be regarded as a battery, and may be connected in series to constitute a battery assembly, or a series connected battery may be connected in parallel to constitute a battery assembly. If parallel connection is included, there is a possibility that individual differences may occur in the charge and discharge current flowing in the unit cells, but in that case, the charge and discharge current value flowing in each unit cell is changed by changing the number of installed current detection units. The SOC calculation may be performed based on the detected current or the average current flowing to the unit cell.
  • what is regarded as a secondary battery constituting the assembled battery may be a single battery or a single battery group, and when collectively referred to as "secondary battery", It shall contain a single battery group regarded as one secondary battery.
  • the present invention is considered to detect the SOC of the battery pack, but the present invention can be considered to be a single battery or a single battery group.
  • a plurality of secondary batteries are set so that all charge states of the plurality of secondary batteries reach a predetermined value. It is desirable to charge each of the plurality of secondary batteries so that the charge states of Thereby, the chargeable / dischargeable capacity of the entire secondary battery system can be increased.
  • the life of the secondary battery can be determined based on the change in the state of charge of the first secondary battery calculated by the current integration method.
  • 100 secondary battery system
  • 110 assembled battery
  • 111 single battery
  • 112a, 112b, 112i single battery group
  • 120 single battery management unit
  • 121a, 121b, 121i single battery control unit
  • 122 voltage detection circuit
  • 123 control circuit
  • 124 signal input / output circuit
  • 125 temperature detection unit
  • 130 current detection unit
  • 140 voltage detection unit
  • 150 battery pack control unit
  • 170 insulation element
  • 180 storage unit
  • 200 Vehicle control unit, 300, 310, 320, 330: relay
  • 410 motor generator
  • 420 charger.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Secondary Cells (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention estime de manière hautement précise l'état de charge d'une batterie rechargeable, parmi une pluralité de batteries rechargeables constituant un système de batterie rechargeable, qui ne comprend pas de moyen de mesure ou d'estimation de température. Le système de batterie rechargeable comprend une pluralité de batteries rechargeables connectées en série, une unité de détection de courant, une unité de détection de tension, une unité de stockage ayant une base de données comprenant des données pour les valeurs initiales d'état de charge et de capacité de batterie des batteries rechargeables, une unité de détection de température pour mesurer ou estimer la température d'au moins une première batterie rechargeable parmi la pluralité de batteries rechargeables, et une unité de commande. L'unité de commande calcule l'état de charge de la première batterie rechargeable à partir de la température de la première batterie rechargeable acquise provenant de l'unité de détection de température et d'une résistance interne calculée à partir d'un courant acquis par l'unité de détection de courant et de la tension de la première batterie rechargeable acquise par l'unité de détection de tension, et utilise les données pour les valeurs initiales d'état de charge et de capacité de batterie d'une seconde batterie rechargeable, parmi la pluralité de batteries rechargeables, dans laquelle la température n'est pas mesurée ni estimée, et l'état de charge de la première batterie rechargeable, pour calculer l'état de charge de la seconde batterie rechargeable.
PCT/JP2018/045603 2018-01-18 2018-12-12 Système de batterie rechargeable WO2019142550A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-006099 2018-01-18
JP2018006099A JP7016704B2 (ja) 2018-01-18 2018-01-18 二次電池システム

Publications (1)

Publication Number Publication Date
WO2019142550A1 true WO2019142550A1 (fr) 2019-07-25

Family

ID=67302176

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/045603 WO2019142550A1 (fr) 2018-01-18 2018-12-12 Système de batterie rechargeable

Country Status (2)

Country Link
JP (1) JP7016704B2 (fr)
WO (1) WO2019142550A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7423697B2 (ja) 2021-07-23 2024-01-29 シーメンス アクチエンゲゼルシヤフト 蓄電池の残量値を算定する方法、装置、およびコンピュータプログラム製品
US11946978B2 (en) 2021-07-23 2024-04-02 Siemens Aktiengesellschaft Method, apparatus and computer program product for estimating the service life of battery storage systems

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019132696A (ja) * 2018-01-31 2019-08-08 トヨタ自動車株式会社 全固体電池の制御装置
JP7097336B2 (ja) * 2019-08-29 2022-07-07 株式会社日立製作所 二次電池モジュールの温度推定方法、劣化状態推定方法及び寿命予測方法、二次電池モジュールの温度推定装置、劣化状態推定装置及び寿命予測装置並びに充電装置
KR20230130238A (ko) * 2022-03-03 2023-09-12 주식회사 민테크 배터리 상태 추정 방법

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005331482A (ja) * 2004-05-21 2005-12-02 Fuji Heavy Ind Ltd 蓄電デバイスの残存容量演算装置
JP2007010664A (ja) * 2005-06-30 2007-01-18 Lg Chem Ltd バッテリーの残存容量の推定方法及びそれによるバッテリー管理システム
JP2008532050A (ja) * 2005-03-09 2008-08-14 エルジー・ケム・リミテッド 温度に応じたオープン回路電圧ヒステリシスを用いたバッテリー残存容量初期値の設定方法
WO2014115294A1 (fr) * 2013-01-25 2014-07-31 日立ビークルエナジー株式会社 Dispositif de contrôle de batterie, système de batterie
US20140316728A1 (en) * 2013-06-20 2014-10-23 University Of Electronic Science And Technology Of China System and method for soc estimation of a battery
US20150276881A1 (en) * 2014-03-25 2015-10-01 The Boeing Company Model-independent battery life and performance forecaster
JP2016514255A (ja) * 2013-02-21 2016-05-19 ルノー エス．ア．エス． 動力車のバッテリから取り出すことができるエネルギーの評価
JP2017009540A (ja) * 2015-06-25 2017-01-12 トヨタ自動車株式会社 二次電池の内部抵抗推定方法および出力制御方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005331482A (ja) * 2004-05-21 2005-12-02 Fuji Heavy Ind Ltd 蓄電デバイスの残存容量演算装置
JP2008532050A (ja) * 2005-03-09 2008-08-14 エルジー・ケム・リミテッド 温度に応じたオープン回路電圧ヒステリシスを用いたバッテリー残存容量初期値の設定方法
JP2007010664A (ja) * 2005-06-30 2007-01-18 Lg Chem Ltd バッテリーの残存容量の推定方法及びそれによるバッテリー管理システム
WO2014115294A1 (fr) * 2013-01-25 2014-07-31 日立ビークルエナジー株式会社 Dispositif de contrôle de batterie, système de batterie
JP2016514255A (ja) * 2013-02-21 2016-05-19 ルノー エス．ア．エス． 動力車のバッテリから取り出すことができるエネルギーの評価
US20140316728A1 (en) * 2013-06-20 2014-10-23 University Of Electronic Science And Technology Of China System and method for soc estimation of a battery
US20150276881A1 (en) * 2014-03-25 2015-10-01 The Boeing Company Model-independent battery life and performance forecaster
JP2017009540A (ja) * 2015-06-25 2017-01-12 トヨタ自動車株式会社 二次電池の内部抵抗推定方法および出力制御方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7423697B2 (ja) 2021-07-23 2024-01-29 シーメンス アクチエンゲゼルシヤフト 蓄電池の残量値を算定する方法、装置、およびコンピュータプログラム製品
US11946978B2 (en) 2021-07-23 2024-04-02 Siemens Aktiengesellschaft Method, apparatus and computer program product for estimating the service life of battery storage systems

Also Published As

Publication number Publication date
JP2019124612A (ja) 2019-07-25
JP7016704B2 (ja) 2022-02-07

Similar Documents

Publication Publication Date Title
JP6588632B2 (ja) 電池制御装置
WO2019142550A1 (fr) Système de batterie rechargeable
JP6033155B2 (ja) 電池制御装置
JP6111275B2 (ja) 電池制御装置
US9770997B2 (en) Detection of imbalance across multiple battery cells measured by the same voltage sensor
US11124072B2 (en) Battery control device and electric motor vehicle system
US10147983B2 (en) Secondary battery system
JP5868499B2 (ja) 電池制御装置
JP6101714B2 (ja) 電池制御装置、電池システム
US10725111B2 (en) Battery state detection device, secondary battery system, program product, and battery state detection method
US20150251555A1 (en) Parameter identification offloading using cloud computing resources
JP5784108B2 (ja) 充電制御装置
US20140184236A1 (en) Battery control apparatus and battery system
WO2017056732A1 (fr) Dispositif de commande de batterie et système de batterie
JP5838224B2 (ja) 電池制御装置
KR102261481B1 (ko) 배터리 퇴화 진단 장치 및 방법
JP5851514B2 (ja) 電池制御装置、二次電池システム
CN113016099B (zh) 电池控制装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18901628

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18901628

Country of ref document: EP

Kind code of ref document: A1