EP4338253A1 - Commande d'un système accumulateur d'énergie - Google Patents

Commande d'un système accumulateur d'énergie

Info

Publication number
EP4338253A1
EP4338253A1 EP22740807.7A EP22740807A EP4338253A1 EP 4338253 A1 EP4338253 A1 EP 4338253A1 EP 22740807 A EP22740807 A EP 22740807A EP 4338253 A1 EP4338253 A1 EP 4338253A1
Authority
EP
European Patent Office
Prior art keywords
individual
matrix
switching
control device
control
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.)
Pending
Application number
EP22740807.7A
Other languages
German (de)
English (en)
Inventor
Marcel Maier
Matthias Spägele
Martin Huber
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.)
Huber Automotive AG
Original Assignee
Huber Automotive 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
Priority claimed from DE102022101711.7A external-priority patent/DE102022101711A1/de
Application filed by Huber Automotive AG filed Critical Huber Automotive AG
Publication of EP4338253A1 publication Critical patent/EP4338253A1/fr
Pending 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
    • 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
    • H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/08—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using plugboards, cross-bar distributors, matrix switches, or the like
    • 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
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters

Definitions

  • the present invention relates to a control device for controlling an energy storage arrangement which has a large number of individual cells.
  • the present invention relates to an energy storage arrangement with such a control device.
  • the present invention relates to a corresponding method for controlling an energy storage arrangement.
  • BMS battery management system
  • BMC Battery Management Controller
  • CMC Cell Module Controller
  • the BMC controls and monitors the CMCs at a higher level and represents the interface to the consumer (e.g. vehicle).
  • the BMS is responsible for parameters that cannot be measured electronically, such as the state of charge (SOC; State of Charge) or the remaining capacity (SOH; State of health).
  • SOC state of charge
  • SOH remaining capacity
  • the CMCs control and monitor the individual battery cells and/or battery modules (e.g. also temperature, currents, voltages, etc.) and are also responsible for the (usually passive) balancing.
  • the battery modules can consist of several individual cells connected in series and/or in parallel. In order to maintain a sufficient service life, the battery cells must have an identical capacity (performance), otherwise high equalizing currents will flow, which can lead to premature failure of the battery. In addition, degraded or underperforming battery cells lead to a loss of performance, since the weakest cell in a battery module determines the overall performance/capacity of that module.
  • a disadvantage of the known prior art is accordingly that the individual activation of individual battery cells with conventional BMS systems is very complex. As a result, the weakest battery cell often always determines the capacity and performance of the battery module or the entire battery. Under certain circumstances, this leads to premature degradation of the individual battery modules or the entire battery and a reduction in service life.
  • the object of the present invention is therefore to propose a control device for an energy storage arrangement which enables efficient operation at low cost. In addition, a corresponding control method should be specified.
  • the energy storage arrangement can be a battery or an accumulator. Batteries or accumulators of this type are used for electrically operated vehicles (e-cars, e-bikes, e-scooters, etc.), solar systems, electrical machine tools and the like.
  • the energy storage arrangement has a large number of individual cells. As a rule, the individual cells are based on lithium ions or are implemented using another battery technology (e.g. sodium ions) in all conceivable shapes (e.g. cylindrical, prismatic, pour cell). This results in individual cells that typically supply voltages in the range of 2.4 to 4.2 V (nominal 3.7 V). For vehicles, for example, a large number of such individual cells are connected in parallel and in series so that, for example, an output voltage of more than 400 V and a correspondingly high current results for floch-volt systems.
  • batteries or accumulators of this type are used for electrically operated vehicles (e-cars, e-bikes, e-scooters, etc.), solar systems, electrical machine tools and the like
  • the control device has a switching device with individual switching elements for one or more of the individual cells. Consequently, the control device is based on an intelligent individual cell control. This means that it is possible by means of the present invention to control individual cells of a battery module or of the entire battery individually and separately. This means that each battery cell in an overall battery can be switched on and/or off individually.
  • the individual cells can be connected in groups in parallel or in series in order to form modules.
  • Such modules can in turn be controlled individually and are in turn optionally parallel or connected in series to the overall battery or to the energy storage arrangement.
  • the intelligent individual cell control makes it possible to eliminate the disadvantages of the known battery management systems and, for example, to switch on or off individual cells when charging or discharging the energy storage arrangement.
  • the individual switching elements of the switching device are organized in rows and columns in the manner of a matrix. This does not necessarily mean that the individual switching elements also have to be arranged according to the matrix. Rather, the individual switching elements are logically connected to one another, in particular in the form of a two-dimensional matrix.
  • a single switch can switch a single cell or a module made up of several single cells. Since the individual switching elements are organized in rows and columns, each individual switching element can be addressed or controlled individually via the rows and columns.
  • each of the rows and columns of the switching device can be controlled separately from one another, so that each of the individual switching elements can be switched on and off individually.
  • the rows can therefore be raised to a specific voltage level independently of one another, for example. The same goes for the columns.
  • the rows can also be controlled independently of the columns. Due to the actuation of the rows and the columns, there is no need for a separate actuation of the individual switching elements. Rather, all the individual switching elements in a row and all the individual switching elements in a column can each be driven together. In this way, the control effort can be reduced accordingly.
  • the control complexity with regard to the number of control elements can be reduced to twice the square root.
  • control device has a matrix control device for generating a respective control signal individually for each individual switching element of the switching device.
  • an individual drive signal consists of a row signal and a column signal. Both partial signals are transmitted via the respective row or column of the switching device.
  • Matrix control device able to feed the respective partial signal into the respectively necessary row and the necessary column and thus to control the cell switch accordingly.
  • one or more electronic switches can thus be provided, which are located on each battery cell. These electronic switches are controlled via an intelligent matrix circuit.
  • the battery cells are controlled and controlled, for example, via a row and column decoder (e.g. demultiplexer). It can be implemented using ASICs, FPGA, pC etc., for example.
  • the general functional principle is based on a technology known in digital technology (e.g. memory cell control).
  • the matrix control device has a single column control element and a separate row control element for each column.
  • the column control element and the row control element can be the demultiplexer, ASIC, FPGA, etc. mentioned, for example. All columns of the matrix are controlled with the column control element.
  • each row control only controls the rows of a single column.
  • Such a structure is advantageous, for example, if individual modules are addressed via the columns and the individual cells in the modules via the rows. This means that each module can be controlled individually using the column control element and each individual cell in the various modules can be controlled using the row control element.
  • the various switches, whether module switches or individual cell switches, are treated with equal priority.
  • each of these switches is simply assigned a coordinate in the two-dimensional matrix system. In this case it is sufficient if a single column control element and a single row control element are provided.
  • the designations “column” and “row” can also be used interchangeably in this document.
  • each control signal is a pulse and each switch-on element is designed to continue the switching state brought about by the pulse at least for a predetermined time after the respective pulse to keep.
  • the pulse is, for example, part of a sequential programming pulse which is executed at least twice in order to address all row and column control elements (switch-on elements). Maintaining the switching state in this way even after the pulse is generally necessary, since the individual cells should continue to deliver energy, for example for discharging the energy storage arrangement, even after the respective switch-on.
  • the respective cell is to be separated from the network by a switch-off pulse and, as a rule, also to remain separated from the network.
  • the switching state should therefore continue to be maintained for a predetermined time after the pulse. For example, the switching state is maintained until a new pulse (eg fixed cycle) arrives at the individual switching element. Optionally, the switching state is held after the pulse for a period of time that corresponds to a multiple of the pulse duration.
  • a new pulse eg fixed cycle
  • the switching state is held after the pulse for a period of time that corresponds to a multiple of the pulse duration.
  • switching elements of the matrix are able to hold a switching state.
  • a drive signal can be a pulse.
  • a matrix switching element is arranged at each node of the rows and columns of the matrix control device, each matrix switching element being designed to continue to hold the switching state brought about by the pulse for at least a predetermined time even after the respective pulse.
  • a control line is routed from each node of the matrix to an individual switching element.
  • the individual switching element does not have to have the ability to save or retain the switching state. Rather, the switching state of the individual switching element changes directly with the voltage level at the output of the respective matrix switching element.
  • the entire control (column, row decoder and matrix switching element) could be implemented in a CHIP (ASIC, FPGA) that has enough "memory cells”.
  • each individual switching element or each matrix switching element has a bistable relay, a bistable flip-flop, a floating gate transistor or a thyristor. All of these switching elements can have the ability to retain a switching state over a long period of time or permanently.
  • a bistable relay retains after interruption of the excitation circuit in the switching position that was present after the last excitation.
  • bistable flip-flops A flip-flop, ie a bistable multivibrator, is an electronic circuit that has two stable states of the output signal. The current status not only depends on the currently available input signals, but also on the status that existed before the point in time under consideration.
  • a floating gate transistor is a special type of transistor used in non-volatile memory for permanent information storage.
  • the transistor stores energy on the so-called "floating gate", which means that the transistor can either be controlled or not controlled. In this way, the individual switching elements of the cells can be controlled accordingly.
  • a one-off/sequential programming pulse e.g. one column, one row, a total of at least two processes
  • the floating gate transistor stores this information and is therefore ON/OFF. If this is then also the cell switch, this would be particularly advantageous. Shouldn't this kind of transistor technology work for such applications.
  • these could act as control switches for FETs (cell switches) with very low Rdson (e.g. ⁇ 5mOhm).
  • the thyristor is a turn-on component, i.e. it is non-conductive in its initial state and can be turned on by a small current at the gate electrode. After switching on, the thyristor remains conductive even without gate current. It is switched off when the current falls below a minimum level, namely the holding current.
  • the matrix control device has an FPGA, pC (microcontroller), an ASIC or a demultiplexer as a column control element and/or as a row control element.
  • the two control elements can be accommodated in one and the same chip.
  • the column control and row control may also be referred to as column decoders and row decoders, respectively. What is achieved with them is that, for example, one or more signals from a microprocessor is distributed over the multiple columns or multiple rows. Each column or each row be individually controllable via the column control or row control.
  • an energy storage arrangement is also provided with a multiplicity of individual cells, each for storing energy, and a control device of the type mentioned above.
  • each of the individual cells can be switched on and off individually by one of the individual switching elements.
  • the energy storage arrangement can be used as an energy storage device for a vehicle, a solar system, an electric tool and many other things. In any case, it has a large number of individual cells connected in parallel and/or in series, which can be individually controlled with little effort using the control device due to the matrix organization.
  • the energy storage arrangement has a power output at which the individual cells can be switched using the control device, the control device being designed to generate an AC voltage, in particular with a sinusoidal curve, at the power output.
  • a DC voltage is usually present at the power output of an energy storage arrangement with individual cells.
  • An AC voltage can be generated from this DC voltage with an inverter.
  • the inverter can also be implemented in that the individual cells of the energy storage arrangement are cyclically connected to one another. In this way, for example, the voltage at the power output can increase because more and more additional cells are connected in series. When the individual cells are switched off sequentially, the voltage at the power output can decrease again accordingly. If an additional polarity reversal is provided, negative voltages can also be generated in this way.
  • a sinusoidal course of the output voltage can also be implemented, for example. It should be noted, however, that the sinusoidal shape can usually only be achieved by appropriate voltage levels, with each individual level corresponding to the voltage of an individual cell. In a specific case, individual voltage stages can be switched on and off, so that a quasi-sinusoidal voltage amplitude curve can be generated at the power output (AC voltage). The negative amplitude can be generated by a corresponding electronic circuit, in particular by H-bridges.
  • a direct current motor eg BLDC, brushless direct current motor
  • the energy storage arrangement can have a power input at which the individual cells can be switched individually with the control device for charging. Thanks to the matrix circuit, individual cells can be controlled individually with little effort so that they can then be charged separately. In addition, it is also possible to charge directly with AC voltage by switching the cell switch on or off (line/series connection). In a special embodiment, the matrix circuit could be used to switch individual voltage levels on and off during charging, making it possible to charge from an AC voltage source corresponding to the sinusoidal voltage profile of the source.
  • the object formulated above can also be achieved according to the invention by a method for controlling an energy storage arrangement which has a multiplicity of individual cells, by switching the individual cells with respective individual switching elements, the individual switching elements being organized in rows and columns in a matrix, and each of the rows and columns of the matrix are controlled separately from one another, so that each of the individual switching elements can be switched on and off individually, and generating a respective control signal individually for each individual switching element of the switching device for switching on and off by means of a matrix control device.
  • FIG. 1 shows an exemplary battery topology with a battery management system
  • Fig. 2 shows a matrix circuit for driving individual cells of a
  • Fig. 3 shows an alternative matrix circuit for driving individual cells of a
  • FIG. 5 shows a further embodiment of a matrix switching element.
  • 1 shows the topology of a battery storage device, e.g. a battery storage, as an example.
  • 1 shows an energy storage arrangement 1 with a large number of individual cells 2, 2'. While the individual cells represent 2 standard deployment cells, the individual cells 2' are replacement cells. However, it is not necessary for an energy storage arrangement to have such spare cells 2'.
  • the number of individual cells and their arrangement and connections can also be selected as desired.
  • three of the individual cells 2, 2' are connected together to form a module 3.
  • the individual cells 2, 2' are connected in parallel.
  • An individual switching element 4 is located in series with each individual cell 2, 2'. If the individual switching elements 4 in series with the individual cells 2, 2' are closed, the individual cells 2, 2' are connected in parallel to one another.
  • Each module 3 also has a further individual switching element 4 ′, which can be used to bridge the respective module 3 .
  • This bypass switch 4' is located parallel to the parallel connection of the individual cells 2, 2' with their cell switches or individual switching elements 4. While the individual cells can be switched individually with the cell switches 4, the individual modules 3 can be switched with the bypass switches 4'.
  • each individual switching element 4, 4' is connected to a control logic 5 via respective control lines 6.
  • This control logic 5 is explained in more detail using an exemplary basic block diagram in FIG.
  • the voltages of the individual modules 3 are tapped here by a cell module control unit 7 (CMC). Further cell module control units 7 can be provided for further modules 3 .
  • a battery management control unit 8 (BMC) is superordinate to the cell module control units 7 . This battery management control unit 8 controls and monitors the cell module control units 7 and represents the interface to the consumer (e.g. vehicle).
  • the battery management control unit 8 has a communication interface 9 via which information can be exchanged with the control logic 5 (the control logic can alternatively be integrated into the CMC).
  • the battery management control unit 8 can transmit switching commands to the control logic 5, and on the other hand the control logic 5 can supply status data to the battery management control unit 8 via the individual switching elements 4, 4'.
  • the control of the individual cells 2 of the energy storage arrangement 1 by means of the cell module control units 7 and the battery management control unit 8 and the division of the individual cells into modules 3 is to be regarded as purely optional.
  • the matrix circuit shown can be used as control logic 5 for the individual cells 2, 2' or the modules 3.
  • the matrix circuit is based on a two-dimensional matrix with rows and columns. Accordingly, the matrix circuit has Row control lines 10 and column control lines 11.
  • the row control lines 10 are fed from a row decoder 12.
  • FIG. The row decoder 12 preferably has a ground connection GND.
  • row decoder 12 is in the form of an FPGA, ASIC or demultiplexer. It can be connected to a microprocessor 14 by means of dial-up lines 13 .
  • the selector lines 13 are preferably used for binary signal transmission. With the help of four selection lines 13, for example, 16 rows can be selected. Alternatively, if a serial bit stream is clocked into a shift register, any number of outputs can be controlled.
  • the column control lines 11 are supplied by a column decoder 15 in the same way. It is also controlled by the microprocessor 14 via dial-up lines 13 .
  • dial-up lines 13 By way of example, three selection lines 13 are provided here, so that eight columns can be controlled with binary control. The number of rows and columns is of course freely selectable.
  • the row control lines 10 are optionally supplied by the row decoder 12 via optocouplers 16 . These optocouplers 16 ensure galvanic isolation of the row control lines 10 and the row decoder 12.
  • the column control lines 11 can also be connected to the column decoder 15 via optocouplers 16, so that different voltage levels of the rows/columns can be reliably switched. In this way, the LV area in particular can be cleanly separated from the HV area.
  • a matrix switching element 18 or a cell switching element is arranged at each node 17 of the matrix, ie at each intersection of a row control line 10 and a column control line 11 .
  • one electrode of the matrix switching element 18 is connected to the respective column control line 11 and another electrode of the matrix switching element 18 is connected to the respective row control line 10 .
  • the matrix switching element 18 is marked with a transistor symbol.
  • the control electrode base or gate
  • an electrode of the power path eg emitter or drain
  • the matrix switching element 18 is preferably formed with a MOSFET 19.
  • the matrix switching element 18 has one on each of the second electrodes of the power path Output connection 20. This output connection is connected to the respective control line 6 of the control logic 5 (compare FIG. 1).
  • a respective individual switching element 4, 4' can thus be controlled directly with a matrix switching element 18.
  • FIG. 2 An alternative control logic 5 in the form of a matrix circuit is shown in FIG.
  • the matrix circuit essentially corresponds to that of FIG. 2.
  • the above description of FIG. 2 therefore also applies here with the following exceptions:
  • a plurality of row decoders 12' are used here.
  • Each row decoder 12' controls the respective matrix switching elements 18 or rows of a single column of the matrix.
  • the matrix switching elements 18 or rows of the first column in FIG. 3 are driven by the row decoder 12' shown above.
  • the matrix switching elements 18 or rows of the second column in FIG. 3 are driven by the row decoder 12' shown below, etc.
  • Each column of the matrix can be used, for example, to drive one of a plurality of modules of the energy storage arrangement.
  • a module-specific row decoder 12' can then be used to control individual switching elements 4, 4' on the individual cells 2, 2'.
  • the columns do not have to be assigned to fixed modules.
  • Other groupings or assignments of the columns and rows to the switching elements can also be made.
  • the individual cells are switched on during operation. Only in exceptional cases is one or a few of the individual cells switched off during operation and, if necessary, replaced by a replacement cell.
  • the cell switches ie the individual switching elements 4 of the switching device, this means that they are predominantly switched on during operation. If, for example, conventional transistors are used for the individual switching elements, which only turn on when driven, then these transistors must be driven practically constantly for the purpose described. This could not easily be realized with a matrix if a single cell is to be switched off with it and all others remain on. In principle it is of course possible to drive the individual cells cyclically, it being possible for conventional transistors to be used as switching elements.
  • a pulsed direct current can be produced with this matrix control, with the individual cells or groups of individual cells being switched on cyclically one after the other or switched off.
  • an alternating current or an alternating voltage can also be generated by switching the switches via the matrix circuit in such a way that the interconnection of the individual cells results in a corresponding alternating voltage.
  • the operating voltage is to be kept high as direct voltage, with a large part of the individual cells being switched on, then it is necessary to equip the individual switching elements 4, 4' or the matrix switching elements 18 of the control logic 5 with a type of memory function. In particular, they should then retain the switching state over a longer period of time, even if the activation has already ended, for example by means of a pulse.
  • a floating gate transistor shown in FIG. 4 could serve as such a switching element with storage capability.
  • the floating gate transistor 21 has, for example, a p-doped substrate and an n-region for the source 22 and drain 23.
  • a control electrode or a gate 24 is located between the drain and source, as in a conventional MOSFET transistor, and connects their n - Territories.
  • the gate 24 is insulated from the p-doped substrate by an oxide layer 25 .
  • a floating gate 26 is embedded in the insulating oxide layer 25 . Positive charge is stored in this floating gate 26 during programming. These positive charges result in a permanent conductive channel between the n-regions of source 22 and drain 23. This conductive channel remains at least as long as the charge in floating gate 26 remains stored. This results in a corresponding memory effect, and the switching state of the floating gate transistor can be set by programming.
  • the electrical circuit shown in FIG. 5 can be used for the matrix switching element 18 .
  • the electrical circuit has two P-FET (field effect transistors) 27, 28 and three N-FET 29, 30, 31 here.
  • a first terminal of the drain-source channel of the first P-FET 27 is connected to a first terminal of the drain-source channel of the second P-FET 28 and connected to a supply voltage.
  • a second terminal of the drain-source channel of the first P-FET 27 is connected to a first terminal of the drain-source channel of the first N-FET 29 connected.
  • a second terminal of the drain-source channel of the second P-FET 28 is connected to a first terminal of the drain-source channel of the second N-FET 30 .
  • a second terminal of the drain-source channel of the first N-FET 29 is connected to a second terminal of the drain-source channel of the second N-FET 30 and grounded.
  • the gates of the first P-FET 27 and the first N-FET 29 are connected together and connected to the first terminal of the drain-source channel of the second N-FET 30 .
  • the control electrodes of the second P-FET 28 and the second N-FET 30 are connected together and connected to the second terminal of the drain-source channel of the first P-FET 27 .
  • a third N-FET 31 is connected at one end of the drain-source channel to the column control line 11 and at the other end of the drain-source channel to the second terminal of the drain-source channel of the first P-FET 27.
  • This Connection represents an output 32 to which a cell switch or an individual switching element 4, 4' is connected.
  • This circuit can also be implemented with other components that function in an analogous manner.
  • the matrix switches with memory function can also be implemented, for example, with bistable relays or bistable flip-flops. If these switching elements with storage functionality are used for the cell switches, they should have a correspondingly low resistance.
  • control device for controlling an energy storage arrangement illustrated above by way of example.
  • individual battery cells and/or individual battery modules can be switched on and/or off in a targeted manner.
  • Targeted, intelligent and individual balancing of the individual battery cells, ie individual cells, is also possible.
  • a new type of balancing including a new charging strategy for the entire battery is made possible. This massively reduces heat loss and energy consumption.
  • gentle or complete charging of all battery cells can be achieved.
  • the overall battery capacity and lifespan can be increased.
  • the degraded or defective cells can be switched off.
  • replacement cells can be switched on to replace defective and/or degraded cells.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention vise à simplifier la commande de cellules individuelles d'un système accumulateur d'énergie (1). À cet effet, l'invention propose un dispositif de commande pour commander un système accumulateur d'énergie (1) comportant une pluralité de cellules individuelles (2, 2'). Ce dispositif de commande présente un dispositif de commutation comprenant des éléments de commutation individuels (4, 4') pour une ou plusieurs des cellules individuelles. Les éléments de commutation individuels (4, 4') du dispositif de commutation sont organisés sous forme de matrice en lignes et en colonnes. Chacune des lignes et des colonnes du dispositif de commutation peut être commandée séparément, de sorte que chacun des éléments de commutation individuels (4, 4') peut être connecté et déconnecté individuellement. Un dispositif de commande de matrice (5) est prévu pour générer un signal de commande respectif individuellement pour chaque élément de commutation individuel (4, 4') du dispositif de commutation.
EP22740807.7A 2021-06-30 2022-06-28 Commande d'un système accumulateur d'énergie Pending EP4338253A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102021116884 2021-06-30
DE102021132889 2021-12-14
DE102022101711.7A DE102022101711A1 (de) 2021-06-30 2022-01-25 Steuerung einer Energiespeicheranordnung
PCT/EP2022/067670 WO2023275014A1 (fr) 2021-06-30 2022-06-28 Commande d'un système accumulateur d'énergie

Publications (1)

Publication Number Publication Date
EP4338253A1 true EP4338253A1 (fr) 2024-03-20

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Application Number Title Priority Date Filing Date
EP22740807.7A Pending EP4338253A1 (fr) 2021-06-30 2022-06-28 Commande d'un système accumulateur d'énergie

Country Status (3)

Country Link
US (1) US20240178678A1 (fr)
EP (1) EP4338253A1 (fr)
WO (1) WO2023275014A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2972304A1 (fr) * 2011-03-02 2012-09-07 Commissariat Energie Atomique Batterie avec gestion individuelle des cellules
DE102018206096A1 (de) * 2018-04-20 2019-10-24 Audi Ag Batteriesystem und Verfahren zum Betreiben eines Batteriesystems
DE102019130739A1 (de) * 2019-11-14 2021-05-20 Audi Ag Batterie mit einer Batteriezelle und Verfahren zu deren Betrieb

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US20240178678A1 (en) 2024-05-30
WO2023275014A1 (fr) 2023-01-05

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