WO2015014761A1 - Procédé de diagnostic d'un état d'une batterie - Google Patents

Procédé de diagnostic d'un état d'une batterie Download PDF

Info

Publication number
WO2015014761A1
WO2015014761A1 PCT/EP2014/066100 EP2014066100W WO2015014761A1 WO 2015014761 A1 WO2015014761 A1 WO 2015014761A1 EP 2014066100 W EP2014066100 W EP 2014066100W WO 2015014761 A1 WO2015014761 A1 WO 2015014761A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
state
determined
battery units
diagnostic
Prior art date
Application number
PCT/EP2014/066100
Other languages
German (de)
English (en)
Inventor
Christian Korn
Andreas Gleiter
Original Assignee
Robert Bosch Gmbh
Samsung Sdi Co., Ltd.
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 Robert Bosch Gmbh, Samsung Sdi Co., Ltd. filed Critical Robert Bosch Gmbh
Priority to CN201480042616.3A priority Critical patent/CN105452890A/zh
Publication of WO2015014761A1 publication Critical patent/WO2015014761A1/fr

Links

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
    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • 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
    • 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]
    • B60L58/13—Maintaining the SoC within a determined range
    • 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
    • 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
    • B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
    • 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
    • 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
    • B60L58/18—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
    • B60L58/22—Balancing the charge of battery modules
    • 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]
    • 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]
    • 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
    • B60L2250/00—Driver interactions
    • B60L2250/10—Driver interactions by alarm
    • 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
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the invention relates to a method for diagnosing a condition of a battery having a plurality of battery units.
  • the invention also relates to a computer program and a
  • Battery management system which are set up to carry out the method. Furthermore, a battery and a motor vehicle are specified with such a battery.
  • Hybrid and electric vehicles use battery packs in nickel-metal hydride technology or lithium-ion technology, which consist of a large number of series-connected electrochemical cells.
  • a battery management system is used to monitor the battery and, in addition to the safety monitoring, should ensure the longest possible battery life.
  • a task of the battery management system is, state of charge (SOC) of the individual battery units despite different self discharges and
  • balancing which is usually made resistive.
  • a resistor and a switching element is provided for each battery unit in order to discharge individual battery units specifically via this so-called balancing resistor.
  • Charge state compensation of battery units is described for example in DE 10 2009 002 466 A1.
  • a so-called inductive cell balancing is also described, wherein the circuit concept for aligning the cell voltages based on an inductive intermediate storage of the transported electrical energy.
  • the document also discloses a battery diagnosis that only then is started when an operating state of a consumer supplied by the battery indicates that it is not operating in a main mode.
  • step a a state of charge compensation value is determined for each battery unit. Thus, it can be determined which battery unit is defective or inferior.
  • the diagnosis of the state of the battery takes place in the form of the diagnosis of the state of the battery units in step d) on the basis of the result of the comparison in step c).
  • step d) an identification of the defective or inferior battery units, z.
  • an identification of the defective or inferior battery units z.
  • the possible diagnostic options in step b) include a first diagnostic option, which includes an increased self-discharge rate of at least one
  • Battery unit preferably increased self-discharge rates of all battery units concerns.
  • the self-discharge rate may be considered as a measure of the state of health (SOH) of the battery pack.
  • SOH state of health
  • State of charge compensation value is closed to the increased self-discharge rate of the affected battery units.
  • the possibility of the first diagnostic option is determined on the basis of the presence of a limited SOC window (SOC, state of charge). This is possible for example by discharging and then charging the battery unit to the original state of charge or by charging and subsequent discharge.
  • SOC SOC, state of charge
  • an SOC window that is within a range that is typically achieved on each day of travel for a particular type of vehicle, such as an electric vehicle (EV) or a hybrid vehicle (HEV, hybrid electrical vehicle).
  • a hybrid vehicle it is advantageous if the limited SOC window is defined by SOC values of 40% and 50%.
  • the limited SOC window is defined by SOC values above 80% or above 90%.
  • the possible diagnostic options include a second diagnostic option, which relates to a capacity loss of at least one battery unit, preferably capacity losses of all battery units. The capacity loss is caused by the aging of the battery unit and provides in the context of the invention provides a further measure of the health of the battery unit. It is therefore particularly advantageous to infer a possible loss of capacity of the affected battery units on the basis of the charge state compensation requirement value.
  • the second diagnostic option is determined based on the presence of a period of time that is shorter than a reference period, for example, shorter than one hour or less than two Hours.
  • the second diagnostic option can be determined based on the presence of an SOC stroke of at least 20% within a maximum of 1 to 2 hours.
  • a computer program is also proposed according to which one of the methods described herein is performed when the computer program is executed on a programmable computer device.
  • the computer program is preferably executed on a battery control device accompanying normal operation.
  • the computer program can in particular be a module for implementing a battery diagnostic system or a module for implementing a
  • the computer program can be stored on a machine-readable storage medium, such as on a
  • the computer program may be provided on a computing device, such as on a server or a cloud server, for downloading, for example via a data network such as the Internet, or a communication connection such as a telephone line or wireless connection.
  • a battery management system is also provided with a unit for determining a state of charge compensation demand value, a unit for determining possible diagnostic options, a unit for comparing the determined requirement value with a demand threshold for a diagnosed diagnostic option and a unit for diagnosing the state of the battery units.
  • a battery in particular a lithium-ion battery or a nickel-metal hydride battery is also provided, the
  • Battery management system comprises and is connectable to a drive system of a motor vehicle, wherein the battery management system is formed as described above and / or is arranged to carry out the inventive method.
  • the terms “battery” and “battery unit” are used in the present description, the usual parlance used for accumulator or Akkumulatorü.
  • the battery preferably comprises one or more battery units, which designate a battery cell, a battery module, a module string or a battery pack can.
  • the battery cells are preferably firmly connected to each other and interconnected circuitry, for example, connected in series or parallel to modules.
  • Several modules can be connected to so-called battery direct converters (BDCs) and several battery direct converters to a so-called battery direct inverter (BDI).
  • BDCs battery direct converters
  • BDI battery direct inverter
  • a motor vehicle is also provided with such a battery, wherein the battery is connected to a drive system of the motor vehicle.
  • the method is used in electrically powered vehicles, in which an interconnection of multiple battery cells for
  • Figure 1 is a schematic representation of a battery management system in
  • FIG. 2 shows a method according to the invention according to a first embodiment
  • Figure 3 shows a method according to the invention according to a second embodiment
  • FIG. 4 shows a diagram with standardized charge state compensation values.
  • FIG. 1 shows a battery management system 2, which is set up, several
  • the battery management system 2 is set up to carry out the method according to the invention.
  • Communication channel 18 for example to a CAN bus.
  • the battery management system 2 has a unit 6 for determining a
  • the demand value determination unit 6 is set up to receive measured values and / or measured data from the battery units 4 in order to determine the charge state compensation requirement value individually for each battery unit 4.
  • the determination of the state of charge compensation required value can for example take place regularly or be coupled to specific events or operating states of the vehicle.
  • the framework conditions in the demand determination are decisive.
  • a first battery unit is denoted Wegindex L and a second with Tiefindex S.
  • the battery units have different self-discharges
  • Qs (t) Q s (0) + AQ s (t) - as (t), where AQ (t) means a charge / discharge stroke.
  • ASOC (At) C * + ⁇ - ⁇ - ⁇ * - ⁇ .
  • the parameters time t, and the charge flow rate Q are variable. As a result, two cases can be distinguished:
  • Battery unit performed in comparison to any reference battery unit.
  • a suitable reference battery unit is, for example, the one with the lowest SOC in the battery pack. In this way, the diagnosis for all battery units is feasible. The increased self-discharge rate is measured relative to other cells. If all cells discharge evenly fast, then the diagnosis can not detect this. However, this case is very unlikely even at about 100 cells.
  • the battery management system has a unit 8 for determining diagnostic options, which checks the conditions during the charge state equalization requirement determination for the presence of possible diagnostic options.
  • the unit 8 for determining diagnostic options receives measured values and / or measured data from the
  • Battery units 4 in particular information about the state of charge of the battery units (SOC) to determine the presence of a limited SOC window.
  • the diagnostic option determination means 8 is also arranged to determine whether two detected charge state equalization demand values have been determined in a limited SOC window, for example, in a SOC window with SOC values of 40% and 50%.
  • the means 8 for determining the diagnostic options also includes a
  • Timing unit which can determine if two determined demand values for the battery balancing, if they were determined within a period of time that is shorter than a reference period.
  • the battery management system 2 also has a unit 10 for comparing the determined charge state compensation requirement value with a demand threshold for a determined diagnostic option. For example, if the diagnostic option determination unit 8 has determined a charge state balance demand value determination in the limited SOC window, the charge state balance requirement may change to one increased self-discharge rate of the battery unit are closed. Whether such an increased self-discharge rate of the battery unit is present, the unit 10 determines by comparing the determined charge state compensation requirement value with the
  • diagnostic option determination unit 8 alternatively or in addition thereto
  • the unit compares 10 to
  • the battery management system 2 also has a unit 12 for diagnosing the state of the battery units, which receives data from the unit 10 for comparing the determined demand value with a demand threshold.
  • the means 12 for diagnosing the condition of the batteries identifies defective or inferior ones
  • Battery units by storing entries in the battery units associated with fault memories or outputs a warning signal to the driver of the vehicle.
  • Fig. 2 shows an exemplary embodiment of the method according to the invention.
  • the method is initiated, for example by detecting a specific operating state of the vehicle or by lapse of a defined time.
  • a charge state compensation requirement value is determined for a battery unit.
  • a further charge state compensation requirement value is determined.
  • Sufficiency level demand values have been determined in a limited SOC window. If so, a diagnosis is made in step S4 regarding the self-discharge rate of the battery pack. If not, it is determined in a step S5 whether the charge state compensation requirement values determined in steps S1 and S2 have been determined within a time period which is shorter than a reference period. If so, a capacity diagnosis is performed in a step S6. If not, the process is restarted, whereby the last detected state of charge compensation demand value can be used again, so that in the following step S1 can be omitted.
  • Fig. 3 shows an alternative embodiment of the method according to the invention.
  • the steps SO, S1 and S2 are executed as described with reference to FIG.
  • the method shown in Fig. 3 differs from that of Fig. 2 only in the
  • Step S7 first checks whether the determined state of charge compensation demand values were determined within a period that is shorter than a reference period. If so, the capacity diagnosis is performed in a step S8. If not, it is checked in a step S9 whether the ascertained state of charge compensation requirement values were determined within a limited SOC window. If so, in step S10, the
  • FIG. 4 shows a diagram in which a standardized charge state compensation requirement ASOC / AC is plotted over the time t.
  • ASOC / AC In a first area 20, ASOC / AC> 0, so AQ> 0.
  • ASOC / AC In a second area 22, ASOC / AC ⁇ 0, so that AQ ⁇ 0. Recognizable occurs a reversal in the charge state balance requirement of the batteries. It can be seen from Fig. 4 that at the upper SOC limit, a higher capacity battery pack would be discharged, while at the lower SOC limit, the smaller capacity battery pack would be discharged. The capacity-related demand is therefore reversed, while the demand based on self-discharge is not reversed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un procédé de diagnostic d'un état d'une batterie qui présente plusieurs unités de batterie. Selon l'invention, une valeur de besoin de compensation de l'état de charge est déterminée, des options de diagnostic possibles sont déterminées, la valeur de besoin de compensation de l'état de charge déterminée est comparée à une valeur seuil de besoin pour une option de diagnostic possible déterminée et l'état des unités de batterie est diagnostiqué à partir de là. L'invention concerne également un programme informatique et un système de gestion de batterie qui sont conçus pour mettre en œuvre le procédé, ainsi qu'une batterie et un véhicule automobile dont le système d'entraînement est relié à une telle batterie.
PCT/EP2014/066100 2013-07-30 2014-07-25 Procédé de diagnostic d'un état d'une batterie WO2015014761A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201480042616.3A CN105452890A (zh) 2013-07-30 2014-07-25 用于诊断蓄电池的状态的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013214817.8 2013-07-30
DE102013214817.8A DE102013214817A1 (de) 2013-07-30 2013-07-30 Verfahren zur Diagnose eines Zustands einer Batterie

Publications (1)

Publication Number Publication Date
WO2015014761A1 true WO2015014761A1 (fr) 2015-02-05

Family

ID=51263386

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/066100 WO2015014761A1 (fr) 2013-07-30 2014-07-25 Procédé de diagnostic d'un état d'une batterie

Country Status (3)

Country Link
CN (1) CN105452890A (fr)
DE (1) DE102013214817A1 (fr)
WO (1) WO2015014761A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016212564A1 (de) * 2016-07-11 2018-01-11 Robert Bosch Gmbh Verfahren zum Ausgleichen von Ladezuständen mehrerer Batteriemodule einer Batterie und entsprechende Vorrichtung

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102634816B1 (ko) 2017-12-21 2024-02-07 삼성전자주식회사 배터리의 전하 균형을 탐지하는 배터리 모니터링 장치 및 방법
JP2020051984A (ja) * 2018-09-28 2020-04-02 本田技研工業株式会社 診断装置、診断システム、診断方法、及びプログラム
DE102022207311A1 (de) 2022-07-18 2024-01-18 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren und Vorrichtung zum Erkennen eines Selbstentladungsfehlers einer Gerätebatterie sowie zum Ermitteln einer Kritikalität eines erkannten Selbstentladungsfehlers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009002466A1 (de) * 2009-04-17 2010-10-21 Robert Bosch Gmbh Erweiterte Batteriediagnose bei Traktionsbatterien
US20110127960A1 (en) * 2009-12-02 2011-06-02 American Electric Vehicles, Inc. System and Method For Equalizing a Battery Pack During a Battery Pack Charging Process
DE102012110555A1 (de) * 2011-12-08 2013-06-13 Gm Global Technology Operations, Llc Kombiniertes PI-Regelungs- und Steuerverfahren für den Zellenladezustandsausgleich

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101187766B1 (ko) * 2008-08-08 2012-10-05 주식회사 엘지화학 배터리 셀의 전압 변화 거동을 이용한 셀 밸런싱 장치 및 방법
US20120068715A1 (en) * 2009-05-19 2012-03-22 Volvo Lastvagnar Ab Modular energy storage system for driving electric motor
KR101057547B1 (ko) * 2010-01-26 2011-08-17 에스비리모티브 주식회사 배터리 관리 시스템 및 그 구동 방법
US9866050B2 (en) * 2010-05-21 2018-01-09 The Boeing Company Battery cell charge equalization
CN102064586A (zh) * 2011-01-14 2011-05-18 奇瑞汽车股份有限公司 一种新型电池均衡器控制系统及其控制方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009002466A1 (de) * 2009-04-17 2010-10-21 Robert Bosch Gmbh Erweiterte Batteriediagnose bei Traktionsbatterien
US20110127960A1 (en) * 2009-12-02 2011-06-02 American Electric Vehicles, Inc. System and Method For Equalizing a Battery Pack During a Battery Pack Charging Process
DE102012110555A1 (de) * 2011-12-08 2013-06-13 Gm Global Technology Operations, Llc Kombiniertes PI-Regelungs- und Steuerverfahren für den Zellenladezustandsausgleich

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016212564A1 (de) * 2016-07-11 2018-01-11 Robert Bosch Gmbh Verfahren zum Ausgleichen von Ladezuständen mehrerer Batteriemodule einer Batterie und entsprechende Vorrichtung
US10826302B2 (en) 2016-07-11 2020-11-03 Robert Bosch Gmbh Method for equalizing states of charge of a plurality of battery modules of a battery and corresponding apparatus

Also Published As

Publication number Publication date
CN105452890A (zh) 2016-03-30
DE102013214817A1 (de) 2015-02-05

Similar Documents

Publication Publication Date Title
EP2831608B1 (fr) Procédé d'interconnexion de cellules de batterie dans une batterie, batterie et dispositif de contrôle
DE60112502T2 (de) Verfahren zum Ersetzen einer Sekundärbatterie
EP1941289B1 (fr) Procede et dispositif pour determiner l'etat de vieillissement d'un accumulateur
EP3095153B1 (fr) Procédé de compensation d'état de charge d'une batterie
EP2611646A1 (fr) Procédé d'équilibrage d'états de charge d'une batterie dotée de plusieurs cellules de batterie, système de gestion de batterie correspondant et batterie
DE102008060936A1 (de) Vorrichtung und Verfahren zum Betreiben einer Batterieeinheit eines Kraftfahrzeugs
DE102013224170A1 (de) Systeme und Verfahren zum Ausgleichen eines Fahrzeugbatteriesystems
WO2012072434A1 (fr) Procédé pour déterminer la tension en circuit ouvert d'une batterie, batterie pourvue d'un module pour déterminer la tension en circuit ouvert et véhicule automobile équipé d'une batterie correspondante
DE102013217451A1 (de) Verfahren zur Datenübertragung in einem Batteriemanagementsystem
DE102013108198B4 (de) Verfahren zum Ausführen eines Zellausgleichs eines Batteriesystems basierend auf Kapazitätswerten
EP2944009B1 (fr) Procédé et dispositif destinés à augmenter la capacité disponible d'un groupe accumulateur par équilibrage des niveaux de charge des éléments, système de gestion d'accumulateur, accumulateur et appareil de charge d'accumulateur
WO2015014761A1 (fr) Procédé de diagnostic d'un état d'une batterie
DE102013106265A1 (de) Verfahren zum Betreiben einer Energiespeichereinrichtung und entsprechende Energiespeichereinrichtung
DE102013204885A1 (de) Verfahren zur Reduzierung des Gesamtladungsverlusts von Batterien
WO2019020303A1 (fr) Dispositif et procédé de symétrisation d'un module accumulateur d'énergie
DE102013209433A1 (de) Verfahren und Vorrichtungen zum Bereitstellen von Informationen zu Wartungs- und Servicezwecken einer Batterie
DE102012207673A1 (de) Verfahren zum Betrieb einer Batterie unter Berücksichtigung der Selbstentladung sowie Batteriemanagementsystem zur Ausführung des Verfahrens
DE102012012765A1 (de) Verfahren und Vorrichtung zum Laden eines elektrischen Energiespeichers
DE102013215628A1 (de) Verfahren zur Batteriediagnose
DE202016105619U1 (de) Intelligenter Akkumulator
DE102013201451A1 (de) Verfahren und System zur Batteriediagnose
DE102018206030A1 (de) Verfahren zum Laden einer elektrischen Energiespeichereinheit
DE102018217389A1 (de) Elektrischer Energiespeicher mit einem Gehäuse und mindestens zwei aus dem Gehäuse geführten Polanschlüssen und dessen Verwendung
DE10345306A1 (de) Vorrichtung zum Laden und Überwachen einer Fahrzeugbatterie mit Einzelzellenabgriff
DE102012214092A1 (de) Ersatzzelle für ein Batteriesystem

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201480042616.3

Country of ref document: CN

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

Ref document number: 14746993

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: 14746993

Country of ref document: EP

Kind code of ref document: A1