EP0919078A1 - Procede et dispositif pour le controle et/ou la regulation de charge d'une batterie constituee de modules, notamment dans un vehicule mu par batterie - Google Patents

Procede et dispositif pour le controle et/ou la regulation de charge d'une batterie constituee de modules, notamment dans un vehicule mu par batterie

Info

Publication number
EP0919078A1
EP0919078A1 EP97928272A EP97928272A EP0919078A1 EP 0919078 A1 EP0919078 A1 EP 0919078A1 EP 97928272 A EP97928272 A EP 97928272A EP 97928272 A EP97928272 A EP 97928272A EP 0919078 A1 EP0919078 A1 EP 0919078A1
Authority
EP
European Patent Office
Prior art keywords
battery
evaluation unit
measurement data
module
modules
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP97928272A
Other languages
German (de)
English (en)
Inventor
Karl-Heinz Hauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP0919078A1 publication Critical patent/EP0919078A1/fr
Ceased legal-status Critical Current

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
    • 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
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00036—Charger exchanging data with battery
    • 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
    • H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of 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
    • H02J7/0013—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
    • 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

  • Electric vehicles are already used for a number of purposes, and draw their energy from rechargeable batteries, in particular from lead accumulators connected in series. Such environmentally friendly drives are also beginning to gain acceptance in road vehicles.
  • a major problem is to monitor the operational readiness of the battery modules and to indicate their ready status.
  • Measurement data for determining the state of charge are recorded in the remote control transmitter and transmitted to the device to be controlled using a transmission medium such as infrared light, ultrasound or electromagnetic waves.
  • An evaluation circuit and a display element for displaying the state of charge are contained in the device to be controlled.
  • Such Wireless transmission of measurement data recorded on the battery to an evaluation unit is only possible under favorable circumstances and is not suitable in particular for a motor vehicle.
  • the evaluation unit is connected to the power cable.
  • the measurement data recorded directly on the battery, in particular the terminal voltage and the temperature, are transmitted to the evaluation unit by means of a coded AC voltage via the power cable.
  • the signal lines previously used can be completely eliminated. Electrical isolation is no longer necessary.
  • the circuit outlay for the coded transmission of the measurement data is considerably less in comparison to additional signal lines, in particular if batteries are used which are made up of a plurality of modules and / or cells and the individual modules and / or cells for a statement about the functional state of the entire association should be monitored.
  • the measured values can each be transmitted directly coded to the evaluation unit or passed on to other modules and / or cells and transmitted from there to the evaluation unit.
  • the transmission is advantageously serial and frequency modulated.
  • the simultaneous acquisition of measurement data on the individual modules is essential for the assessment of the functional status of a battery from individual modules of an overall association.
  • the acquisition of the measurement data is advantageously triggered by the central evaluation unit, so that these are acquired simultaneously on all modules.
  • These measurement data are digitized and then temporarily stored in memory circuits on the modules and from there serially queried and evaluated by the evaluation unit, each module being assigned a controllable module address.
  • Memory circuits for temporarily storing measurement data are advantageously integrated in each module, so that no complex wiring is required between the sensors and these intermediate memories.
  • Fig. 1 is a block diagram of an apparatus for performing the method for a
  • Fig. 2 is a circuit diagram for a series resonant circuit for the transmission of measurement data with a coded AC voltage.
  • a battery 1 is shown, from the power cables 2 and 3 lead to consumers, which are shown schematically as a load resistor 4.
  • a power shunt 5 and a main switch 6 are included in the power cable 2.
  • the measuring shunt 5 is connected to a central evaluation unit 9 via measuring lines 7 and 8. This also has a connection to the power cables 2, 3 via signal lines 10, 11.
  • the battery 1 is intended to represent the energy source in a battery-operated vehicle, the load resistor 4 essentially representing an electric drive motor.
  • the battery 1 is constructed in a modular manner, with conventional lead-acid batteries being used as modules 12 to 17 connected in series.
  • a module circuit as a module controller 19 to 24 is integrated in each module 12 to 17.
  • each module controller 19 to 24 is connected to the terminals 25, 26 of each assigned module 12 to 17 for detecting the terminal voltage. Furthermore, each module controller 19 to 24 is connected to further measuring sensors (not shown) assigned to each module, for example to temperature sensors.
  • the central evaluation unit 9 contains, in particular, high-voltage filters, rectifiers, amplifiers and a microcomputer.
  • the module controllers 19 to 24 further contain digitizing and buffering devices that interact with the central evaluation unit 9 and a connection to a series resonant circuit via whose alternating voltage buffered measurement data can be transmitted.
  • the area 27 framed by dashed lines is on the battery side, reference number 28 denoting a module of the battery and R1 indicating an ohmic resistance and L2 indicating an inductance of a complex internal resistance of the battery.
  • Inductors L2 and L3 represent the leads with line inductances.
  • the remaining area of the circuit is assigned to the module controller.
  • the feed lines with the inductors L2 and L3 are connected to a transistor Q2 which, in conjunction with further resistors, in particular R2, R3, R4, R5 and a capacitor C1, forms a series resonant circuit which is operated close to the resonance frequency.
  • An alternating voltage which is generated via an oscillator 1, is fed in via a further capacitance C2 at the branching point of the resistors R3, R4, R5.
  • the Positive pole 29 in the battery-side part is connected to resistor R4 via an inductor L4 and further to ground 30 via a smoothing capacitor C3
  • the circuit part of the central evaluation unit 9 (FIG. 1) for sending coded information is constructed similarly. There are differences in the tuning of the resonant circuit L1, R1, L2, L3 and C1, since the entire battery 1 (FIG. 1) is effective as the source voltage 28
  • FIGS. 1 and 2 have the following function
  • the module voltage and the module temperature are recorded on the individual modules 12 to 17. If a module consists of several cells, these are also monitored with regard to their voltage level
  • the temporarily stored measurement data are queried sequentially by the central evaluation unit 9.
  • an address code is transmitted via the power cable.
  • the addressed module controller replies in the echo process, with the help of a start bit (low potential), 8 data bits and a stop bit (high potential) successively transmitting the temporarily stored voltage value and temperature value from a module controller to the central evaluation unit Then a next module controller is queried.
  • the evaluation is carried out there according to criteria known per se and the charge status of the battery is displayed

Abstract

L'invention concerne un procédé et un dispositif pour le contrôle et/ou la régulation de charge d'une batterie (1), notamment dans un véhicule mû par batterie. A cet effet, des données de mesure importantes pour le contrôle sont détectées au niveau de la batterie (1), et sont transmises à une unité d'évaluation (9), la batterie étant reliée par l'intermédiaire de câbles de puissance (2, 3) à au moins un consommateur (4). L'unité d'évaluation (9) est raccordée à ces câbles de puissance (2, 3) et les données de mesure lui sont transmises par l'intermédiaire de ces derniers au moyen d'une tension alternative codée. Des circuits supplémentaires séparés galvaniquement pour l'acheminement des signaux entre les capteurs de mesure de la batterie et l'unité d'évaluation deviennent ainsi superflus. La complexité du câblage peut ainsi être réduite, notamment dans le cas des batteries (1) de conception modulaire utilisées dans les véhicules électriques.
EP97928272A 1996-08-09 1997-06-26 Procede et dispositif pour le controle et/ou la regulation de charge d'une batterie constituee de modules, notamment dans un vehicule mu par batterie Ceased EP0919078A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19632253 1996-08-09
DE19632253 1996-08-09
PCT/EP1997/003345 WO1998007226A1 (fr) 1996-08-09 1997-06-26 Procede et dispositif pour le controle et/ou la regulation de charge d'une batterie constituee de modules, notamment dans un vehicule mu par batterie

Publications (1)

Publication Number Publication Date
EP0919078A1 true EP0919078A1 (fr) 1999-06-02

Family

ID=7802283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97928272A Ceased EP0919078A1 (fr) 1996-08-09 1997-06-26 Procede et dispositif pour le controle et/ou la regulation de charge d'une batterie constituee de modules, notamment dans un vehicule mu par batterie

Country Status (5)

Country Link
US (1) US6137262A (fr)
EP (1) EP0919078A1 (fr)
JP (1) JP2000516339A (fr)
KR (1) KR20000029794A (fr)
WO (1) WO1998007226A1 (fr)

Families Citing this family (10)

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Publication number Priority date Publication date Assignee Title
DE19836141C1 (de) * 1998-08-10 2000-06-15 Ceag Sicherheitstechnik Gmbh Verfahren und Überwachungsvorrichtung zur Überwachung wenigstens eines zur Notversorgung von elektrischen und/oder elektronischen Verbrauchern zuschaltbaren Batteriesatzes
RU2298867C2 (ru) * 2000-10-10 2007-05-10 Америкен Электрик Пауэ Компани, Инк. Система выравнивания силовой нагрузки и пакетное накопление энергии
KR20030030541A (ko) * 2001-10-11 2003-04-18 현대자동차주식회사 전기 차량의 배터리 제어부 고장 검출장치
US6518734B1 (en) * 2002-06-18 2003-02-11 Aep Emtech, Llc System and method of forming capacitor-based electrical energy storage modules
FR2842360A1 (fr) * 2002-07-12 2004-01-16 Hawker Sa Procede et systeme de communication entre un dispositif de controle et de gestion d'une batterie et un chargeur de batterie
US7176806B2 (en) * 2005-02-23 2007-02-13 Eaglepicher Energy Products Corporation Physical key to facilitate an inactive mode for a state-of-charge indicator within a battery
KR100899284B1 (ko) * 2006-03-13 2009-05-27 주식회사 엘지화학 간단한 구조의 안전수단을 구비한 전지모듈
JP5533175B2 (ja) * 2009-05-20 2014-06-25 日産自動車株式会社 組電池監視装置
US20110302078A1 (en) 2010-06-02 2011-12-08 Bryan Marc Failing Managing an energy transfer between a vehicle and an energy transfer system
US9102313B2 (en) 2011-06-17 2015-08-11 International Truck Intellectual Property Company, Llc Supervisory control system for hybrid-electric powertrains

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FR2589008B1 (fr) * 1985-10-17 1994-10-21 Cga Alcatel Systeme de surveillance d'un ensemble d'accumulateurs electrochimiques et dispositif de surveillance pour un accumulateur
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AT396637B (de) * 1990-07-23 1993-10-25 Industrieelektronik Poelz Ladegerät für sammlerbatterien
US5270636A (en) * 1992-02-18 1993-12-14 Lafferty Donald L Regulating control circuit for photovoltaic source employing switches, energy storage, and pulse width modulation controller
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DE4225746A1 (de) * 1992-08-04 1994-02-10 Hagen Batterie Ag Schaltungsvorrichtung
US5455499A (en) * 1993-04-26 1995-10-03 Motorola, Inc. Method and apparatus for indicating a battery status
DE4339568A1 (de) * 1993-11-19 1995-05-24 Bosch Gmbh Robert Verfahren zur Ermittlung des Ladezustandes einer Batterie, insbesondere einer Fahrzeug-Starterbatterie
EP0662744B1 (fr) * 1994-01-06 1999-03-24 General Motors Corporation Dispositif et méthode d'égalisation de charge de module
DE4422005A1 (de) * 1994-06-13 1995-12-14 Lennart Preu Personenkraftwagen mit Elektroantrieb
KR0180390B1 (ko) * 1994-06-16 1999-05-15 전성원 전기 자동차의 밧데리 충전 제어장치 및 그 방법
AT404526B (de) * 1994-07-18 1998-12-28 Pfaffelmoser Peter Einrichtung zum selektiven entladen einzelner zellen eines wiederaufladbaren akkumulators
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Title
See references of WO9807226A1 *

Also Published As

Publication number Publication date
WO1998007226A1 (fr) 1998-02-19
US6137262A (en) 2000-10-24
KR20000029794A (ko) 2000-05-25
JP2000516339A (ja) 2000-12-05

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