WO2014132491A1 - 電池残容量推定方法及び装置 - Google Patents
電池残容量推定方法及び装置 Download PDFInfo
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- WO2014132491A1 WO2014132491A1 PCT/JP2013/079893 JP2013079893W WO2014132491A1 WO 2014132491 A1 WO2014132491 A1 WO 2014132491A1 JP 2013079893 W JP2013079893 W JP 2013079893W WO 2014132491 A1 WO2014132491 A1 WO 2014132491A1
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- remaining capacity
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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
-
- 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]
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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]
- G01R31/382—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
-
- 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
-
- 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]
-
- 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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- 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
Definitions
- the present invention relates to a battery remaining capacity estimation method and apparatus for a secondary battery such as a lithium ion battery or a nickel metal hydride battery.
- the estimation of the remaining capacity of the battery can be estimated by a charging rate (SOC: State Of Charge) which is a ratio of the remaining charge amount to the full charge capacity of the battery.
- SOC State Of Charge
- the charging rate (SOC) is also referred to as a state of charge.
- the charging rate (SOC) is also referred to as remaining capacity (SOC).
- an open circuit voltage (OCV) is generally estimated from a closed circuit voltage (CCV). Then, the remaining capacity (SOC) is estimated from the open circuit voltage (OCV) with reference to map data of SOC-OCV characteristics in which the remaining capacity (SOC) and the open circuit voltage (OCV) are associated with each other.
- the value of the open circuit voltage (OCV) of the battery is obtained, for example, from the voltage value of the battery after 3 hours have elapsed from the stop of energization at a temperature of 25 degrees.
- OCV open circuit voltage
- Patent Document 1 for a battery that is repeatedly charged and discharged at random, the remaining capacity SOCx is obtained by referring to the SOC-CCV characteristics based on the battery voltage at the time of discharge, and the remaining capacity SOCx is stored in the storage means.
- a charging state management device is described that outputs the remaining capacity SOCx as the current remaining capacity SOC when the stored minimum remaining capacity SOCmin falls below, and updates the minimum remaining capacity SOCmin with the remaining capacity SOC.
- FIG. 9A shows an example of the SOC-CCV characteristic in which the closed circuit voltage (CCV) and the remaining capacity (SOC) are associated with each other.
- reference numeral 91 denotes a charging side SOC-CCV characteristic measured during charging
- 92 denotes a discharging side SOC-CCV characteristic measured during discharging.
- the remaining capacity (SOC) using the SOC-CCV characteristics if only discharging is performed from the fully charged state and the entire capacity of the battery is used up, the discharge side SOC-CCV characteristics are calculated from the closed circuit voltage (CCV) on the way. 92, the remaining capacity (SOC) on the way can be estimated.
- the charge-side SOC-CCV characteristic 91 is referred to from the closed circuit voltage (CCV) in the middle, and the remaining capacity (SOC) in the middle is determined. Can be estimated.
- the charging side SOC-CCV characteristic 91 and the discharging side are determined.
- the correspondence between the remaining capacity (SOC) and the closed circuit voltage (CCV) does not apply, and the accuracy of estimation of the remaining capacity (SOC) deteriorates.
- the present invention provides a battery that has a large polarization and takes a long time to depolarize, when charging starts in the middle of discharging before reaching a fully discharged state, or before reaching a fully charged state.
- a battery remaining capacity estimating method and apparatus capable of accurately estimating the remaining capacity (SOC) of a battery from the closed circuit voltage (CCV) of the battery even when discharging is started in the middle of charging.
- the battery remaining capacity estimation method is a charge that represents the correlation between the remaining battery capacity (SOC) and the closed circuit voltage (CCV) of the battery when only charging is performed from the fully discharged state to the fully charged state.
- Discharge side SOC-CCV representing the correlation between the remaining SOC (SOC) of the battery and the closed circuit voltage (CCV) of the battery when only discharging from the fully charged state to the fully discharged state is performed.
- the remaining capacity (SOC) and the closed circuit voltage shift from one of the charge-side SOC-CCV characteristic and the discharge-side SOC-CCV characteristic to the other are switched.
- CCV is generated from the closed circuit voltage (CCV) using the transient characteristic until the polarization of the battery is saturated when the charge / discharge of the battery is switched. battery And it estimates the remaining capacity (SOC).
- the battery remaining capacity estimation device calculates the correlation between the remaining battery capacity (SOC) and the closed circuit voltage (CCV) of the battery when only charging is performed from the fully discharged state to the fully charged state.
- the charge-side SOC-CCV characteristic, and the discharge-side SOC representing the correlation between the remaining battery capacity (SOC) and the closed-circuit voltage (CCV) of the battery when only discharging is performed from the fully charged state to the fully discharged state.
- SOC-CCV map data storage means for storing SOC-CCV map data of CCV characteristics, and when charging / discharging of the battery is switched, the charge-side SOC-CCV characteristics and discharge are based on the SOC-CCV map data
- a transient characteristic generating means for generating a transient characteristic indicating a correlation between a remaining capacity (SOC) and a closed circuit voltage (CCV) that shifts from one of the side SOC-CCV characteristics to the other; and the battery Estimating the remaining capacity (SOC) of the battery from the closed circuit voltage (CCV) using the transient characteristics until the polarization of the battery is saturated when charging / discharging is switched Means.
- the remaining capacity (SOC) of the battery can be accurately estimated from the closed circuit voltage (CCV) of the battery.
- the remaining capacity (from the point on one curve of the charge side SOC-CCV characteristic 91 and the discharge side SOC-CCV characteristic 92 to the point on the other curve ( A new SOC-CCV characteristic indicating the correlation between the SOC and the closed circuit voltage (CCV) is generated as a transient characteristic, and the transient characteristic is used for estimating the remaining capacity (SOC).
- FIG. 1 shows an example of generation of transient characteristics when charging / discharging is switched halfway.
- the charge-side SOC-CCV characteristic 91 data shown in FIG. 1 is obtained by measuring the remaining capacity (SOC) in advance while charging only with a predetermined current flowing through a charger.
- the remaining capacity (SOC) and the closed circuit voltage ( (CCV) is stored in a storage unit (not shown).
- the discharge-side SOC-CCV characteristic 92 data is obtained by measuring the remaining capacity (SOC) while only discharging at a discharge rate in a typical battery usage pattern or a typical battery usage pattern.
- Map data in which (SOC) and closed circuit voltage (CCV) are associated with each other is stored in a storage unit (not shown).
- FIG. 1B shows an example of a newly generated transient characteristic 11.
- the transient characteristic 11 is used until the polarization of the battery is reversed and saturated, and after the polarization is saturated, the charging side SOC-CCV Using the characteristic 91, the remaining battery capacity (SOC) is estimated from the closed circuit voltage (CCV).
- SOC closed circuit voltage
- FIG. 1D shows an example of a newly generated transient characteristic 12.
- the transient characteristic 12 is used until the polarization of the battery is reversed and saturated, and after the polarization is saturated, the discharge-side SOC-CCV Using the characteristic 92, the remaining battery capacity (SOC) is estimated from the closed circuit voltage (CCV). Note that when charging is stopped and discharging is started, in addition to stopping charging by an external charger, stopping charging by a regenerative current generated when the electric vehicle is decelerated is also included.
- FIG. 2 shows an example of generation of transient characteristics when charging / discharging is switched before polarization is saturated.
- FIG. 2A shows the transient characteristic 11 generated when the discharge is stopped halfway and charging is started as described in FIG.
- FIG. 2B shows the transition to the discharge on the curve of the transient characteristic 11 is made.
- the estimation accuracy of the remaining capacity (SOC) can be further improved.
- the generation of such a curve requires actual measurement data measured under various conditions, which complicates the generation of a transient characteristic curve. Therefore, the transient characteristic curve is generated by various pseudo curves approximated by a straight line, a quadratic function, etc. in consideration of the complexity of the generation of the transient characteristic curve and the accuracy of the required remaining capacity (SOC). Also good.
- the transient characteristics include a transient characteristic 11 when switching to charging during discharging and a transient characteristic 12 when switching to discharging during charging.
- the generation of the transient characteristic 11 when switching to charging during discharging will be described.
- the transient characteristic 12 when switching to discharging during charging can also be generated by the same method.
- the point P2 (SOC1, CCV2) of the charge side SOC-CCV characteristic 91 is specified with the same remaining capacity SOC1 as the point P1 (SOC1, CCV1) immediately before the start of charging on the curve of the discharge side SOC-CCV characteristic 92. .
- the amount of change ⁇ SOC of the remaining capacity necessary to become saturated after the polarization inversion is measured in advance and stored in advance in the storage unit as the polarization inversion change map data in association with the remaining capacity SOC at the time of charge / discharge switching. Keep it.
- the above-described point P3 (SOC3, CCV3) of the remaining capacity SOC3 on the curve of the charge-side SOC-CCV characteristic 91 is specified.
- FIG. 4A three points P1, P2, and P3 are specified on a plane with the horizontal axis representing SOC and the vertical axis representing CCV.
- a curve of transient characteristics from the three points to the point P3 to the point P3 is generated.
- the curve of the transient characteristic is the direction of the vector V1 from the point P1 to the point P2 at the point P1, and the direction of the vector V2 from the point P2 to the point P3 at the point P3. Is generated to be a smooth curve.
- the above curve may be, for example, a method of creating a B-spline curve or a Bezier curve, or in order to reduce the processing load, a simple and pseudo curve is generated, and the vectors V1, V1 and P3 are generated at points P1 and P3. It may be a pseudo curve that does not completely coincide with the direction of V2.
- the transient characteristics are generated by incorporating the influence of the voltage drop or voltage increase due to the internal resistance of the battery.
- the internal resistance of the battery can be determined based on battery specifications or by measuring voltage and current during charging / discharging. Since the voltage drop or voltage rise due to the internal resistance is irrelevant to the remaining capacity (SOC), it is represented as a vertical straight line 51 on the transient characteristics as shown in FIG.
- the transient characteristic incorporating the influence of the internal resistance is the same point as the remaining capacity SOC1 of the point P1 from the point P1 of the remaining capacity SOC1 and the closed circuit voltage CCV1 immediately before the switching of charging / discharging, and the point P1 And the point P4 between the point P2 and the point P2 is generated as a characteristic that is linear.
- the point P5 on the SOC-OCV characteristic 52 representing the correlation between the remaining capacity (SOC) of the battery and the open circuit voltage (OCV) of the battery. It can be. If the battery is left for a while after the discharge stops at the point P1, the battery voltage approaches the open circuit voltage (OCV).
- FIG. 6 shows a flow of an operation example of the remaining battery capacity estimation according to the present invention.
- the remaining capacity SOC
- CCV closed circuit voltage
- step S63 it is determined whether or not the state of charge / discharge has changed from charge to discharge or from discharge to charge. If the state of charge / discharge has changed (in the case of YES), the above method is used to make a transient. A characteristic is generated (step S64). After generating the transient characteristics, the process returns to step S62 and the same operation flow is repeated. Moreover, also when it determines with the state of charging / discharging not changing by the above-mentioned step S63 (in the case of NO), it returns to step S62 and repeats the same operation
- FIG. 7 shows an example of the functional block configuration of the battery remaining capacity estimation apparatus of the present invention.
- the battery remaining capacity estimation device of the present invention includes an SOC-CCV map data storage unit 71, a transient characteristic generation unit 72, a polarization inversion change map data storage unit 73, and a remaining capacity (SOC) estimation unit 74.
- SOC remaining capacity
- the SOC-CCV map data storage unit 71 represents the correlation between the remaining battery capacity (SOC) and the closed circuit voltage (CCV) of the battery when only charging is performed from the fully discharged state to the fully charged state. Stores map data of SOC-CCV characteristics.
- the SOC-CCV map data storage unit 71 is a discharge representing a correlation between the remaining capacity (SOC) of the battery and the closed circuit voltage (CCV) of the battery when only discharging is performed from the fully charged state to the fully discharged state.
- the map data of the side SOC-CCV characteristics is stored.
- the SOC-CCV map data storage unit 71 stores map data of SOC-OCV characteristics representing the correlation between the remaining battery capacity (SOC) and the open circuit voltage (OCV) of the battery.
- the polarization inversion change map data storage unit 73 changes the remaining capacity (SOC) required for the charge / discharge state to change and the polarization to invert to reach the saturation state, and the remaining capacity at the time of change of the charge / discharge state.
- SOC remaining capacity
- a map table in which (SOC) is associated is stored.
- the transient characteristic generation unit 72 refers to the stored data in the polarization inversion change map data storage unit 73 from the remaining capacity (SOC) when the charge / discharge state changes, and until the polarization is inverted and becomes saturated. The amount of change in the required remaining capacity (SOC) is specified.
- the transient characteristic generation unit 72 refers to the SOC-CCV map data storage unit 71 and the polarization inversion change map data storage unit 73 by the above-described method when the charge / discharge state of the battery is changed and the charge / discharge state is changed. Then, a transient characteristic curve indicating a correlation between the remaining capacity (SOC) and the closed circuit voltage (CCV), which shifts from one of the SOC-CCV characteristics on the discharge side and the charge side to the other, is generated.
- SOC remaining capacity
- CCV closed circuit voltage
- the remaining capacity (SOC) estimation unit 74 uses the transient characteristic generated by the transient characteristic generation unit 72 until the polarization is reversed and becomes a saturated state, and the closed circuit voltage (CCV) To estimate the remaining battery capacity (SOC). After the polarization reaches saturation, the remaining battery capacity (SOC) is estimated from the closed circuit voltage (CCV) using the charge-side SOC-CCV characteristic or the discharge-side SOC-CCV characteristic.
- the SOC-CCV map data storage unit 71 and the polarization inversion change map data storage unit 73 can be constructed using various storage devices 75 such as a magnetic memory or a semiconductor memory.
- the transient characteristic generation unit 72 and the remaining capacity (SOC) estimation unit 74 can be constructed by using a control device 76 such as a processor capable of various arithmetic processing by a program or a programmable logic device.
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Abstract
Description
51 垂直な直線
52 SOC-OCV特性
71 SOC-CCVマップデータ記憶部
72 過渡特性生成部
73 分極反転変化分マップデータ記憶部
74 残容量(SOC)推定部
75 記憶装置
76 制御装置
81 充電側SOC-OCV特性
82 放電側SOC-OCV特性
91 充電側SOC-CCV特性
92 放電側SOC-CCV特性
93,94 過渡的な曲線
Claims (8)
- 完全放電状態から満充電状態まで充電のみを行った場合の、電池の残容量(SOC)と該電池の閉回路電圧(CCV)との相関を表す充電側SOC-CCV特性、及び満充電状態から完全放電状態まで放電のみを行った場合の、電池の残容量と該電池の閉回路電圧との相関を表す放電側SOC-CCV特性のマップデータに基づいて、
前記電池の充放電を切替えたとき、前記充電側SOC-CCV特性及び放電側SOC-CCV特性の一方から他方へ移行する、残容量と閉回路電圧との相関を示す過渡特性を生成し、
前記電池の充放電を切替えたとき、該電池の分極が飽和した状態になるまで、前記過渡特性を用いて前記閉回路電圧から前記電池の残容量を推定する
ことを特徴とする電池残容量推定方法。 - 前記過渡特性の生成において、前記電池の充放電を切替えたときの、前記充電側SOC-CCV特性及び放電側SOC-CCV特性の一方のSOC-CCV特性上の切替え直前の残容量及び閉回路電圧の第1の点から、他方のSOC-CCV特性における同一の残容量の点である第2の点の近傍を通過し、前記他方のSOC-CCV特性上の点で、前記第2の点から分極が反転して飽和状態となるのに要する残容量の変化分だけ移動した第3の点で、前記他方のSOC-CCV特性に滑らかに接する過渡特性を生成することを特徴とする請求項1記載の電池残容量推定方法。
- 前記分極が反転して飽和状態となるのに要する残容量の変化分と、前記電池の充放電を切替えたときの残容量とを対応付けた、分極反転変化分マップデータを記憶しておき、
前記電池の充放電を切替えたときの残容量から、前記分極反転変化分マップデータを参照して、前記分極が反転して飽和状態となるのに要する残容量の変化分を特定することを特徴とする請求項2記載の電池残容量推定方法。 - 前記切替え直前の残容量及び閉回路電圧の第1の点から、該第1の点の残容量と同一の点であって、前記電池の残容量と該電池の開回路電圧との相関を表すSOC-OCV特性上の点まで、直線状となる過渡特性を生成することを特徴とする請求項2又は3記載の電池残容量推定方法。
- 完全放電状態から満充電状態まで充電のみを行った場合の、電池の残容量(SOC)と該電池の閉回路電圧(CCV)との相関を表す充電側SOC-CCV特性、及び満充電状態から完全放電状態まで放電のみを行った場合の、電池の残容量と該電池の閉回路電圧との相関を表す放電側SOC-CCV特性のSOC-CCVマップデータを記憶したSOC-CCVマップデータ記憶手段と、
前記電池の充放電を切替えたとき、前記SOC-CCVマップデータに基づいて、前記充電側SOC-CCV特性及び放電側SOC-CCV特性の一方から他方へ移行する、残容量と閉回路電圧との相関を示す過渡特性を生成する過渡特性生成手段と、
前記電池の充放電を切替えたとき、該電池の分極が飽和した状態になるまで、前記過渡特性を用いて前記閉回路電圧から前記電池の残容量を推定する残容量推定手段と、
を備えたことを特徴とする電池残容量推定装置。 - 前記過渡特性生成手段は、前記電池の充放電を切替えたときの、前記充電側SOC-CCV特性及び放電側SOC-CCV特性の一方のSOC-CCV特性上の切替え直前の残容量及び閉回路電圧の第1の点から、他方のSOC-CCV特性における同一の残容量の点である第2の点の近傍を通過し、前記他方のSOC-CCV特性上で、前記第2の点から分極が反転して飽和状態となるのに要する残容量の変化分だけ移動した第3の点で、前記他方のSOC-CCV特性に滑らかに接する過渡特性を生成することを特徴とする請求項5記載の電池残容量推定装置。
- 前記分極が反転して飽和状態となるのに要する残容量の変化分と、前記電池の充放電を切替えたときの残容量とを対応付けた、分極反転変化分マップデータを記憶した分極反転変化分マップデータ記憶手段を備え、
前記過渡特性生成手段は、前記電池の充放電を切替えたときの残容量から、前記分極反転変化分マップデータを参照して、前記分極が反転して飽和状態となるのに要する残容量の変化分を特定することを特徴とする請求項6記載の電池残容量推定装置。 - 前記過渡特性生成手段は、前記切替え直前の残容量及び閉回路電圧の第1の点から、該第1の点の残容量と同一の点であって、前記電池の残容量と該電池の開回路電圧との相関を表すSOC-OCV特性上の点まで、直線状となる過渡特性を生成することを特徴とする請求項6又は7記載の電池残容量推定装置。
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US14/765,607 US9714982B2 (en) | 2013-02-27 | 2013-11-05 | Method and device for estimating remaining capacity of battery |
CN201380073282.1A CN105190338B (zh) | 2013-02-27 | 2013-11-05 | 用于估计电池的剩余容量的方法和设备 |
DE112013006736.6T DE112013006736T5 (de) | 2013-02-27 | 2013-11-05 | Verfahren und Gerät für ein Schätzen einer verbleibenden Batteriekapazität |
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JP2016114469A (ja) * | 2014-12-15 | 2016-06-23 | 川崎重工業株式会社 | 二次電池の充電状態推定方法および推定装置 |
CN107408826A (zh) * | 2015-03-02 | 2017-11-28 | 日立汽车系统株式会社 | 电池控制装置以及车辆系统 |
CN107408826B (zh) * | 2015-03-02 | 2020-07-10 | 日本汽车能源株式会社 | 电池控制装置以及车辆系统 |
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WO2018155247A1 (ja) * | 2017-02-24 | 2018-08-30 | 株式会社豊田自動織機 | 電池充電率推定装置 |
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JPWO2018155247A1 (ja) * | 2017-02-24 | 2019-07-18 | 株式会社豊田自動織機 | 電池充電率推定装置 |
TWI685665B (zh) * | 2018-12-03 | 2020-02-21 | 大陸商太普動力新能源(常熟)股份有限公司 | 兩階段充電的電池管理方法 |
JP2019164148A (ja) * | 2019-04-26 | 2019-09-26 | 川崎重工業株式会社 | 二次電池の充電状態推定方法および推定装置 |
JP2021532336A (ja) * | 2019-06-24 | 2021-11-25 | 寧徳時代新能源科技股▲分▼有限公司Contemporary Amperex Technology Co., Limited | 電池の荷電状態の修正方法、装置、システム及び記憶媒体 |
US11231467B2 (en) | 2019-06-24 | 2022-01-25 | Contemporary Amperex Technology Co., Limited | Method, device, and system, for state of charge (SOC) correction for a battery |
JP7047131B2 (ja) | 2019-06-24 | 2022-04-04 | 寧徳時代新能源科技股▲分▼有限公司 | 電池の荷電状態の修正方法、装置、システム及び記憶媒体 |
JP2021044151A (ja) * | 2019-09-11 | 2021-03-18 | 三洋化成工業株式会社 | リチウムイオン電池モジュール及びリチウムイオン電池モジュールの充電方法 |
JP7500170B2 (ja) | 2019-09-11 | 2024-06-17 | 三洋化成工業株式会社 | リチウムイオン電池モジュール及びリチウムイオン電池モジュールの充電方法 |
Also Published As
Publication number | Publication date |
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DE112013006736T5 (de) | 2015-11-12 |
JP2014163861A (ja) | 2014-09-08 |
JP5994680B2 (ja) | 2016-09-21 |
US20150369869A1 (en) | 2015-12-24 |
US9714982B2 (en) | 2017-07-25 |
CN105190338B (zh) | 2017-09-08 |
CN105190338A (zh) | 2015-12-23 |
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