WO2014095233A2 - Batterie présentant au moins une chaîne de batteries ainsi que procédé de régulation d'une tension de batterie - Google Patents

Batterie présentant au moins une chaîne de batteries ainsi que procédé de régulation d'une tension de batterie Download PDF

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Publication number
WO2014095233A2
WO2014095233A2 PCT/EP2013/074559 EP2013074559W WO2014095233A2 WO 2014095233 A2 WO2014095233 A2 WO 2014095233A2 EP 2013074559 W EP2013074559 W EP 2013074559W WO 2014095233 A2 WO2014095233 A2 WO 2014095233A2
Authority
WO
WIPO (PCT)
Prior art keywords
battery
voltage
pulse width
modulated signal
width modulated
Prior art date
Application number
PCT/EP2013/074559
Other languages
German (de)
English (en)
Other versions
WO2014095233A3 (fr
Inventor
Markus Klausner
Stefan Butzmann
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
Publication of WO2014095233A2 publication Critical patent/WO2014095233A2/fr
Publication of WO2014095233A3 publication Critical patent/WO2014095233A3/fr

Links

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
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • 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
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/48—The network being an on-board power network, i.e. within a vehicle for 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
    • 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
    • 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 present invention relates to a battery having at least one
  • the invention relates to an associated method for controlling a battery voltage of a battery, the at least one battery string with a plurality of the
  • Battery string includes each switchable and bridgeable battery cells.
  • Battery voltage provides. To achieve a high battery current, battery cells are often additionally connected in parallel. Further, multiple battery strings may be used simultaneously to select a plurality of
  • Circuit topology for a method for increasing the intrinsic safety of battery cells proposed in which a battery cell by a
  • FIG. 1 shows a battery string 10 which has a series connection with a plurality of battery cells and a positive battery terminal terminal HV + and a negative battery terminal terminal HV-.
  • the battery cells 1 1 each have a bridging circuit 12 with a first transistor 13 and a second transistor 14.
  • the bridging circuits 12 are used to selectively turn on a certain number of battery cells 1 1 in order to achieve a certain strand tension.
  • FIG. 2 is a possible
  • Communication bus 21 are communicated from a central controller 22, whether the first transistor 13 or the second transistor 14 to be turned on.
  • the cells By means of the signal transmission connection 21, the cells must be addressed in a corresponding manner.
  • the respective cell voltage and / or the state of charge of the respective battery cell 1 1 must be reported back to the controller 22, so that this can decide which battery cells 1 1 cells are to be switched to achieve the desired strand voltage.
  • a driver circuit 23 is further arranged, of a
  • Microcontroller 24 is controlled.
  • the control signals 25 are between the low-voltage side arranged control unit 21 and the high-voltage side
  • a battery with at least one battery string is made available, wherein the battery string comprises a plurality of battery cells which can be connected and bridged by triggering to the battery string.
  • Battery also has drive means, which are adapted to the To control battery cells by means of a pulse width modulated signal such that an average on time of a respective battery cell is determined by the duty cycle of the pulse width modulated signal. Further, a method for controlling a battery voltage of a battery is provided, are controlled in the battery cells of the battery by means of a pulse width modulated signal such that the
  • Battery cells are switched on average so to the battery string, that the battery voltage is set to a desired target voltage.
  • An advantage of the invention is that a regulation of a battery voltage or battery string voltage, and in particular also of a variable or adjustable battery voltage can be performed, wherein the
  • the battery further comprises a control unit which is connected via a signal transmission connection with the battery cells and which is adapted to compare a battery voltage generated by the battery string with a predetermined target voltage and the duty cycle of the pulse width modulated signal based on a result of the comparison.
  • the comparison can preferably be carried out with the aid of an operational amplifier.
  • a regulation of the battery voltage can be achieved, which works regardless of the state of charge of the battery cells. This is achieved in particular in that, for example, in the case of a higher average state of charge of the cells via the control unit another
  • PWM pulse width modulated
  • the battery further comprises one or more generating means, which are adapted to generate the pulse width modulated signal based on an analog and / or digital signal.
  • An embodiment of the invention provides to arrange the generating means in each battery cell. This embodiment is particularly suitable for being implemented, for example, with an analog signal, such as an output current or an output voltage of the control unit, so that the battery cells are centrally controlled by means of a single analog signal.
  • the analog signal preferably corresponds to the desired battery voltage (HV voltage).
  • the invention can also be carried out with digital signals, which are transmitted to the respective battery cells and
  • the generating means are present as a central module in the battery. Preference is given to
  • Embodiment can easily by the signal transmission connection, a transmission of the pulse width modulated signal to the
  • the analog signal or the digital signal or the pulse width modulated signal via a galvanic
  • the insulator separates a high-voltage side and a low-voltage side of the battery. As a result, a risk to users or destruction of electronic components can be avoided.
  • the isolator used is preferably an optocoupler per cell.
  • the battery can be equipped in particular with a cascode circuit.
  • the battery string is connected in series with a smoothing inductance, by which a smoothing of the battery voltage generated by the battery string is effected.
  • the battery according to the invention also has a battery cell connected to or in the battery cell for each battery cell
  • the microcontroller au the battery cells in particular for further signal processing of the
  • the microcontrollers are each designed to control a driver circuit arranged in the respective battery cell and via the
  • the microcontrollers can be arranged on the high-voltage side (HV side) or low-voltage side (LV side). If the microcontroller is arranged on the low-voltage side, the half-bridge according to the invention can be controlled by the microcontroller via the isolator.
  • Microcontroller for desynchronization of a respective pulse width modulated signal is formed.
  • the battery or each of the battery cells may include means for desynchronization, which are connected to the respective microcontroller.
  • the microcontroller in a respective battery cell can be set up to receive information about a desired duty cycle of the pulse width modulated signal via the signal transmission connection and to evaluate it.
  • a logic module FPGA, CPLD
  • the means for desynchronization according to the invention may also comprise a spread spectrum oscillator, ie an oscillator whose edges are statistically distributed.
  • a spread spectrum oscillator ie an oscillator whose edges are statistically distributed.
  • an oscillator arranged in each case for clocking the battery cell can be used.
  • the statistical distribution of the clock edges is achieved not by a spread spectrum oscillator but by a random or quasi-random algorithm implemented on the microcontroller.
  • a noise source which is read in via the A / D converter of the microcontroller can be used.
  • Noise source for example, a reverse-biased base-emitter path conceivable.
  • a motor vehicle in particular an electric or hybrid vehicle is provided, which with the
  • Battery according to the invention is equipped, wherein the battery is connected to a drive train of the motor vehicle.
  • the claimed battery cell is a lithium-ion battery cell.
  • Figure 2 is a schematic diagram of a circuit arrangement for operating
  • Figure 3 is a schematic diagram of a circuit arrangement for operating switchable and decoupled battery cells, wherein the
  • Circuitry a control circuit for regulating the
  • Figure 4 is a schematic diagram of a circuit arrangement for operating switchable and decoupled battery cells, wherein the
  • Circuitry a control circuit for regulating the
  • Figure 5 is a schematic diagram of an interconnection of a battery cell with
  • FIG. 6 is a block diagram of an interconnection of a battery cell
  • FIG. 3 is a block diagram of a
  • the control loop includes in this
  • Voltage source 32 is connected to generate a desired voltage Ui.
  • the negative input of the operational amplifier 31 is connected via a voltage divider 33 to a positive battery terminal, as shown in FIG.
  • the voltage at the negative input of the operational amplifier 31 is proportional to the battery voltage U H v-
  • the battery voltage U H v is compared taking into account a factor with the reference voltage Ui.
  • the output of the operational amplifier 31 therefore provides an analogue signal suitable for regulating the battery voltage U H v, which is supplied via the
  • Signal transmission connection 21 is transmitted to the battery cells 11 of the battery string.
  • a plurality of optocouplers 34 are arranged, wherein preferably for each battery cell 1 1, an optocoupler 34 is present. To simplify the illustration, only two of the optocouplers 34 and a battery cell 11 were shown in the figure.
  • the optocoupler 34 transmits the analog signal to a logic device
  • microcontroller 24 in the arrangement shown in Figure 3 is adapted to convert the originating from the operational amplifier 31 and transmitted via the optocoupler 34 analog signal into a pulse width modulated signal or based on the analog signal to generate a pulse width modulated signal. This is used to control the driver circuit 23, wherein the transistors 13 or 14 alterierend the battery cell 1 1 connect the battery line 10 or bridge them.
  • FIG. 4 shows a basic circuit diagram of a circuit arrangement for operating switchable and disconnectable battery cells 11 according to a second exemplary embodiment of the invention. In contrast to the first embodiment according to FIG. 3, the pulse-width-modulated signal is used here
  • the control unit 42 may include the operational amplifier 34 of FIG. 3 and additional components.
  • FIG. 5 shows a basic circuit diagram of an interconnection of a battery cell 11 with various components for controlling the battery cell 11 according to a third embodiment of the invention.
  • the components of the driver circuit 23 shown in FIG. 5 which are used to drive the transistors 13, 14, the microcontroller 24 and the isolator 26 have already been described above.
  • the reference numeral 25 designates control signals which are in particular bidirectionally between the microcontroller 24 on the one hand and not explicitly shown again in this figure
  • control unit can be transmitted across the isolator 26.
  • the third embodiment has means for desynchronizing the pulse width modulated one
  • the pulse-width-modulated signal or the timing 51 of the microcontroller 24 are influenced accordingly by means of a spread spectrum oscillator 52, so that it has statistically distributed clock edges.
  • a smooth battery voltage U H v can be achieved.
  • FIG. 6 shows a schematic diagram of an interconnection of a battery cell 11 according to a fourth embodiment of the invention.
  • the desynchronization is performed by means of an algorithm in the microcontroller 24.
  • the microcontroller 24 is further coupled sec with a noise voltage source U S, by the different

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

Abstract

L'invention concerne une batterie présentant au moins une chaîne de batteries (10) qui comprend plusieurs cellules de batterie (11) pouvant être mises en circuit avec la chaîne de batteries (10) et pontées par commande. En outre, la batterie présente des moyens de commande, conçus pour commander les cellules de batterie (10) au moyen d'un signal modulé en largeur d'impulsion (41) de manière telle que le facteur d'utilisation du signal modulé en largeur d'impulsion (41) détermine un temps d'enclenchement moyen d'une cellule de batterie (11) donnée. L'invention concerne en outre un procédé associé pour réguler une tension d'une batterie (UHV).
PCT/EP2013/074559 2012-12-18 2013-11-25 Batterie présentant au moins une chaîne de batteries ainsi que procédé de régulation d'une tension de batterie WO2014095233A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012223482.9A DE102012223482A1 (de) 2012-12-18 2012-12-18 Batterie mit mindestens einem Batteriestrang sowie Verfahren zur Regelung einer Batteriespannung
DE102012223482.9 2012-12-18

Publications (2)

Publication Number Publication Date
WO2014095233A2 true WO2014095233A2 (fr) 2014-06-26
WO2014095233A3 WO2014095233A3 (fr) 2014-12-31

Family

ID=49639883

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/074559 WO2014095233A2 (fr) 2012-12-18 2013-11-25 Batterie présentant au moins une chaîne de batteries ainsi que procédé de régulation d'une tension de batterie

Country Status (2)

Country Link
DE (1) DE102012223482A1 (fr)
WO (1) WO2014095233A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015200442A1 (de) 2015-01-14 2016-07-14 Robert Bosch Gmbh Einschaltverzögerung für eigensichere Batteriezellen
DE102015002077B3 (de) 2015-02-18 2016-06-09 Audi Ag Batteriezelle für eine Batterie eines Kraftfahrzeugs, Batterie, Kraftfahrzeug und Verfahren zum Betreiben einer Batteriezelle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5670861A (en) * 1995-01-17 1997-09-23 Norvik Tractions Inc. Battery energy monitoring circuits
JP3772665B2 (ja) * 2000-11-17 2006-05-10 日立工機株式会社 電池の充電装置
DE102009044915A1 (de) * 2009-09-23 2011-04-07 Robert Bosch Gmbh Ladevorrichtung zum Aufladen eines Akkupacks
US8169354B2 (en) * 2009-12-02 2012-05-01 Scaleo Chip Apparatus and methods thereof for reducing energy consumption for PWM controlled integrated circuits in vehicles
DE102010041059A1 (de) * 2010-09-20 2012-03-22 Robert Bosch Gmbh Verfahren zum Einstellen einer Soll-Ausgangsspannung eines Energieversorgungszweiges eines steuerbaren Energiespeichers
DE102011002608A1 (de) * 2011-01-13 2012-07-19 Sb Limotive Company Ltd. Verfahren zur Ladung eines Zwischenkreiskondensators

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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Publication number Publication date
DE102012223482A1 (de) 2014-06-18
WO2014095233A3 (fr) 2014-12-31

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