Configuration device, method, arrangement, means of transport and control unit for the operation of a module of a plurality of identical electrical storage cells

DE102016211383B4Active Publication Date: 2026-08-06VOLKSWAGEN AG
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
VOLKSWAGEN AG
Filing Date
2016-06-24
Publication Date
2026-08-06

AI Technical Summary

Technical Problem

Existing battery module control systems require significant development effort and increased susceptibility to electromagnetic interference due to complex wiring and master-slave concepts, leading to high costs and measurement inaccuracies, especially in differently configured battery modules.

Method used

A control unit with a multiplicity of electrical connections and passive electrical networks, including fuses and balancing resistors, allows for adaptable configuration without adding or removing components, enabling operation across various battery module configurations by adjusting electrical connections using configuration components such as fuses and laser treatment.

Benefits of technology

Reduces development costs and wiring effort, enhances reliability, and minimizes electromagnetic interference, allowing a single control unit to operate multiple battery module configurations with reduced testing and software adjustments.

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Abstract

Control unit for the operation of a module of a plurality of identical electrical storage cells (7), hereinafter referred to as "battery module (77)", wherein the battery module (77) has a plurality of external electrical contacts (22) and the control unit (16) comprises: - a plurality of electrical terminals (27) whose positions correspond to the positions of the external electrical contacts (22) of the battery module (77), - evaluation electronics (29), - a plurality of electrical inputs (Z0-Z12) between the electrical terminals (27) and the evaluation electronics (29), and - a passive electrical network between the inputs (Z0-Z12) and the electrical terminals (27), wherein the electrical network comprises external configuration components (KK) which are configured to adapt the control unit (16) to a battery module (77) electrically configured in a first way or to a battery module (77) electrically configured in a second way.
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Description

State of the art

[0001] The present invention relates to a control unit for operating a module of a plurality of identical electrical storage cells ("battery module"), by means of which differently configured battery modules can be operated. In particular, the present invention relates to an "in situ" configuration of the control unit after mounting on the battery module.

[0002] Within the realm of high-voltage energy storage systems for electric vehicle traction, electrical energy storage devices occupy a unique and important role. Their purpose is to reliably store the drive energy for the propulsion units and make it available quickly and efficiently when needed. Currently, lithium-ion cells are primarily used for this purpose, as this technology offers a good compromise between rapid energy absorption and timely energy delivery. Since these electrochemical storage devices can be produced at reasonable costs by industries predominantly located in Asia, a standardized battery concept based on a modular transverse matrix is ​​frequently specified and implemented for electric drive applications. Depending on the specific application, different interconnection configurations of various battery modules are required.While hybrid vehicles typically use only series connections, the cells in pure electric vehicles are also connected in parallel due to the higher power requirements.

[0003] The individual cell voltages must be constantly monitored. For this purpose, for example, twelve battery cells connected in series are grouped into an organizational unit. This unit contains a microcomputer with memory and a communication interface to the higher-level battery management system, which will not be discussed further here. This microcomputer is supplemented by a measuring device capable of monitoring the cell voltage of twelve to sixteen battery cells connected in series. This measuring device is a voltage measuring device designed for series circuits, and the microcomputer reads the data via a standardized data interface to transmit the acquired information.

[0004] Sometimes, each cell manufacturer uses its own electronic components for each module development. This means that new developments are always associated with a very high level of personnel and financial investment. Integrating and testing the suitability of each new development always incurs significant costs.

[0005] The microcomputer and measuring device (hereinafter referred to as the "control unit") described above has a fixed number of measuring inputs, which must be connected to the cells of the battery module via project-specific contacts, in accordance with its intended use. Each sensor at a cell input can only detect the physical voltage relative to the preceding input, in other words, determine the potential difference. A positive voltage or a maximum of -0.3 V relative to the preceding input is mandatory, otherwise the circuitry at that measuring input will be destroyed.

[0006] This technical necessity means that, in the case of parallel connection of cells across the module housing boundaries, contacts must be provided to connect the further cells connected in series to each of the inputs of the measurement chip. It is currently assumed that if the measurement inputs are not fully populated, the upper (higher-value) inputs must be bridged accordingly.

[0007] The procedure described above is called the master-slave concept. To illustrate, for a series circuit consisting of six pairs of battery cells, one module would contain the module electronics and thus measure the cell voltages across the six cell pairs. In contrast, another module would only have the wiring logic without its own electronics, connecting the seventh through twelfth cells to the electronics of the first six cells via various connectors. This allows the measuring chip at the inputs of the seventh through twelfth cells to then detect and measure the appropriately polarized cell voltages.

[0008] The master-slave concept drastically increases wiring complexity and is also more susceptible to electromagnetic interference, which usually requires extensive testing and costly, individual mitigation measures. Furthermore, this interference leads to inaccuracies in cell voltage measurements and affects or degrades state-of-charge determination. These inaccuracies must be compensated for in programming, which requires considerable effort. Aside from the increased wiring effort, which can be substantial depending on the number of cells connected in parallel, there is also increased planning and implementation potential, which significantly raises the development costs for a traction battery. Implementation risks due to developer errors will not be discussed in detail here. However, these errors do occur in daily operations and cause delays and additional costs.

[0009] Another significant cost factor is the variety of battery module components. Because many different battery module variants are required depending on the application (referring here to the different projects and their installation spaces), each receives its own component number and must be kept in sufficient quantities as spare parts for at least 10 years after the end of production.

[0010] DE 10 2013 001 466 A1 describes a motor vehicle and a traction battery with a charge balancing function.

[0011] DE 10 2013 221 379 A1 discloses a method and a device for charging a vehicle battery. A battery pack is equipped with switches, fuses and overvoltage protection and is connected to an external electrical energy source for a predefined period of time to charge the battery after the vehicle has been left.

[0012] DE 10 2009 036 086 A1 discloses monitoring electronics for batteries with a flexible circuit board. Monitoring circuits are provided and can be adapted to or configured for the required number of cells by means of conductive traces on a flexible circuit board.

[0013] Based on the aforementioned state of the art, it is an object of the present invention to reduce the development costs and the storage of control units for operating differently configured battery modules. Disclosure of the invention

[0014] The problem identified above is solved according to the invention by a configuration device, a method, an arrangement, a means of locomotion, and a control unit for operating a module of a plurality of identical electrical storage cells. The control unit has a plurality of electrical connections whose positions correspond to the positions of the external electrical contacts ("poles") of the battery module. Since the storage cells have essentially an identical structure, a regular pattern for the position of the poles results. The plurality of electrical connections of the control unit is arranged such that, in principle, every possible position of a pole can be electrically contacted. Evaluation electronics are provided and configured within the control unit to perform measurements of electrical parameters as well as balancing operations.The evaluation electronics are electrically connected to the control unit's electrical terminals via a variety of electrical inputs. A passive electrical network, which may include fuses, balancing resistors, DIP switches, etc., is provided between the evaluation electronics' electrical inputs and the control unit's electrical terminals. This electrical network also includes external configuration components, such as configuration contacts, configuration pads, laser target positions, etc. These configuration components allow the control unit, or more precisely, the electrical network, to be adapted to differently configured battery modules.In other words, the control unit can be adapted to a first battery module by adjusting the electrical network using the configuration components, without having to add or remove any electrical components. A control unit of identical design according to the invention can be adapted to a battery module configured in a second way by alternatively addressing the configuration components, without having to add or remove any electrical components. In other words, the configuration components can be addressed to open or close electrical contacts within the electrical network.The result is a versatile control unit for operating and monitoring battery modules configured in a wide variety of ways, without the need for costly and time-consuming testing of data connectivity, basic automotive suitability, and other parameters after the control unit or a battery module equipped with it is to be used in a different vehicle project.

[0015] The dependent claims describe preferred embodiments of the invention.

[0016] The configuration parameters can be configured as configuration contacts for adapting the electrical network. These contacts can be temporarily electrically contacted by a configuration device according to a second aspect of the present invention in order to influence the electrical network. Alternatively or additionally, laser treatment can be performed using the configuration device. As a result, the configuration contacts, in response to the configuration, ensure that electrical connections within the electrical network are closed or broken. In principle, mechanical separation of electrical connections within the network is also possible. For this purpose, electrical conductors or traces can be destroyed (e.g., scratched, machined, drilled, etc.) using the configuration device. Due to the simple metrological verification of the result by current measurement or...For conductivity measurement, the destruction of electrical connections through a temporary high current flow is a suitable method. This is particularly relevant for fuses. The advantage of this method is that molten metal cannot reach unforeseen locations and form unwanted electrical connections.

[0017] The electrical network can, for example, include resistors for charge equalization between the memory cells (balancing resistors) and fuses. The balancing resistors and fuses can be assigned to the electrical inputs of the evaluation electronics in a generally uniform and fixed pattern. For example, the numerous electrical inputs can be electrically connected in pairs via an additional fuse. In this way, the fuses, when activated, disconnect the respective electrical input from an adjacent electrical input or from a specific electrical connection of the control unit. This type of configuration enables robust and reliable adaptation of the electrical connection between the evaluation electronics and the electrical connections of the control unit without requiring any modifications to the software or electrical components.

[0018] When the present invention refers to "differently configured" battery modules, this may mean, for example, the number of storage cells connected in series and / or the number of storage cells connected in parallel within a given battery module. While the mechanical configuration of the storage cells in such battery modules is essentially identical, in particular the poles of the individual storage cells are arranged in identical positions, pole connectors of varying numbers, arrangements, and lengths ensure the respective electrical function of the battery module. The present invention takes advantage of this mechanical regularity by enabling battery modules with identical pole position patterns to be operated by a control unit according to the invention, after the network has been configured according to the invention.

[0019] The numerous electrical connections of the control unit can correspond to poles arranged essentially in two straight rows, the distance between which is determined in particular by the distance between a respective negative terminal and a corresponding positive terminal of a memory cell. The distance between the straight rows can, for example, be in a range between 10 cm and 25 cm, particularly in a range between 15 cm and 20 cm. The distance between the nearest external electrical connections of the control unit can be in a range between 1 cm and 15 cm, particularly in a range between 3 cm and 10 cm.

[0020] The control unit according to the invention could be called a "universal cell controller" or a unit cell controller. The fuses described above can be, for example, fast-acting SMD fuses. In this case, one fuse can connect the sensor contact to the balancing resistor and the connected measurement input (e.g., of an analog-to-digital converter) of the evaluation unit. An additional fuse, for example, represents a connection between the next higher-level neighboring contact (electrical connection of the control unit). This fuse thus represents a short circuit, which, depending on the configuration, is either triggered (cut) or remains in place.

[0021] A key concept of the cell controllers according to the invention is that an electrical, but not a mechanical, configuration is required to operate multiple cell configurations within a single mechanical battery module housing (component housing). The control unit preferably enables parallel (p)-series (s) configurations of the following variants: 1p12s, 2p6s, 3p4s, 4p3s, and 6p2s. In this way, the aforementioned connection variants / configurations can be operated by a single, jointly designed control unit according to the invention. Using the configuration components, the aforementioned fuses can, for example, be selectively addressed (triggered) to adapt the control unit to the cell configuration of the battery module immediately before assembly.

[0022] According to a second aspect of the present invention, a configuration device for adapting a control unit according to the aforementioned aspect of the invention for use with a battery module of a predefined electrical configuration is proposed. The configuration device has external electrical contacts whose positions correspond to the positions of the external electrical terminals of the control unit and the positions of the external configuration contacts of the control unit. By means of the electrical connection to the external configuration contacts of the control unit, the configuration device can modify the electrical network of the control unit according to the invention. By means of the electrical connection between the electrical contacts of the configuration device and the electrical terminals of the control unit, the configuration device can verify whether the configuration has been carried out successfully or in accordance with specifications.This does not preclude the possibility that the electrical contacts may allow for alternative or dual use of the electrical connections with regard to configuration and verification. Additionally, an evaluation unit is provided which is configured to determine the predefined electrical configuration of the battery module with which the control unit according to the invention is to be used. Furthermore, the evaluation unit can generate an electrical voltage between the electrical contacts in order to adapt the control unit to the predefined electrical configuration.

[0023] The configuration device may include switching elements by which it is configured to vary or select the external electrical contacts between which it applies the electrical voltage, depending on the configuration of the battery module. In other words, after recognizing the current configuration of the battery module, the configuration device can define the switches for the corresponding activation of the control unit's configuration components.

[0024] To protect the control unit's evaluation unit from unwanted energy input during configuration, it can have a short-circuit bridge by which the multiple electrical inputs of the evaluation unit are electrically connected (e.g., to a safe reference potential such as an electrical ground). Therefore, if one of the electrical connections is exposed to an electrical potential, no energy is injected into the evaluation unit, and it remains undamaged.

[0025] According to a third aspect of the present invention, a method for adapting a control unit according to the first aspect of the invention for use with a battery module of a predefined configuration is proposed. In a first step, the predefined configuration of the battery module is automatically determined. This can be done, for example, by reading a barcode, an NFC tag, or an RFID tag. Alternatively or additionally, an electrical measurement (e.g., of an open-circuit voltage, a current through a reference resistor, or similar) is possible for identifying the predefined configuration. In particular, the open-circuit voltage across all cells of the battery module varies relatively clearly depending on the selected configuration.Depending on the detected configuration, electrical connections between the configuration components or configuration contacts of the control unit can then be opened or closed to adapt the network to the predefined configuration. In particular, a permanent change to the network occurs. In the case of opening the electrical connections, this can be reversible, but preferably irreversible, to prevent accidental misconfiguration (e.g., during operation, maintenance, etc.).

[0026] According to a fourth aspect of the present invention, an arrangement is proposed comprising a control unit according to the first-mentioned aspect of the invention and a battery module of a predefined electrical configuration. Here, the control unit is adapted to the configuration of the battery module by modifying an originally provided electrical network, i.e., by closing and / or opening electrical connections between configuration components.

[0027] According to a fifth aspect of the present invention, a means of transportation is proposed which comprises a plurality of control units according to the first aspect of the invention. A plurality of battery modules of a predefined electrical configuration are each electrically connected to one of the aforementioned control units, each battery module being configured to be operated by one of the control units. The plurality of electrical connections of each battery module correspond, with respect to their respective positions, to the positions of the external electrical contacts of the battery module. In this way, the means of transportation is configured to realize the features, combinations of features, and the resulting advantages of the aspects of the invention described above. Brief description of the drawings

[0028] Exemplary embodiments of the present invention are described below with reference to the accompanying drawings. The drawings show:

[0029] Fig. 1 a schematic overview of components of an embodiment of a means of transport according to the invention;

[0030] Fig. 2 an exploded view of an embodiment of an arrangement according to the invention;

[0031] Fig. 3– Fig. 5 Detailed views of sections of electrical networks between a multitude of external electrical contacts of a battery module and an evaluation unit;

[0032] Fig. 6– Fig. 10 Top views of the connections of arrangements according to the invention with different electrical configurations;

[0033] Fig. 11– Fig. 15 schematic representations for modifying an electrical network within a control unit according to the invention to adapt to different configurations of a battery module;

[0034] Fig. 16– Fig. 19 schematic representations of electrical connections between electrical terminals of a respective embodiment of a control unit;

[0035] Fig. 20 a schematic representation of components of an embodiment of a configuration device according to the invention; and

[0036] Fig. 21 a flowchart illustrating steps of an embodiment of a method according to the invention for adapting a control unit. Embodiments of the invention

[0037] Fig. Figure 1 shows a passenger car as an embodiment of a means of transport according to the invention, which has a battery module 77 with memory cells7 has which an inverter 23 a traction machine 24 supplied with electrical energy. An exemplary embodiment of a control unit according to the invention. 16 is for the operation of the battery module 77 provided and includes both the monitoring of the memory cells 7 as well as the charge balance between the storage cells 7 out of.

[0038] Fig. Figure 2 shows an exploded view of an embodiment of an arrangement according to the invention, which includes an electronic control unit. 16 and a multitude of memory cells 7 features, whose external electrical contacts 22 are arranged on a common side and essentially in the same plane relative to each other. The control unit 16 It itself has a control unit connection. 1 (LV 10 PIN). A high-voltage cover connector 2is set up, an upper cover 15 to lock. A high-voltage busbar extension 3 It serves for the electrical connection of the depicted arrangement to the electrical periphery. Between the memory cells 7 are cell isolations 4 arranged. A temperature sensor 5 It monitors the temperature of the assembly at a representative point. On an end plate body. 11 are pipe bushings 6 arranged for screwing. Side plate body 8 correspond to isolation pages 9 , which are the narrow sides of the memory cells 7 flank. Between each outermost memory cell 7 and an end plate carrier 21 are an insulation end cover 10 for the memory cells 7 and an end plate carrier 21 provided. The electrical connections 22 the memory cells 7are connected by a busbar as cell connectors 17 electrically connected. A positive high-voltage busbar. 18 and a negative high-voltage current rail 19 They serve to electrically connect the depicted arrangement to the vehicle's electrical system. They are connected via a busbar holder. 20 fixed.

[0039] Fig. Figure 3 shows a section of an electrical network located between the inputs of the evaluation electronics. 29 and the electrical connections (not shown), which are electrically contacted via the external electrical connections in the form of contacts K–K4. Contact K0 is electrically connected to a reference ground Z0 of the evaluation electronics. 29The remaining contacts K1–K4 are connected to the first terminal of a respective fuse S1–S4, the second end of which is electrically connected to the first terminal of a balancing resistor R1–R4. The second end of each balancing resistor R1–R4 is connected to the electrical inputs Z1–Z4 of the evaluation electronics. 29 The balancing resistors R1–R4 are connected at their respective first terminals by fuses S12–S34. The same applies to a fuse S01, which connects the reference ground Z0 and the first terminal of balancing resistor R1. The first terminals of balancing resistors R1–R4 are also equipped with configuration contacts KK1–KK4 as examples of configuration components, or are electrically identical to them.

[0040] Fig. 4 shows a step towards adapting the in Fig. 3 network shown using a voltage source 26 , which can be part of a configuration device according to the invention (not shown). The voltage source 26 It is electrically connected to configuration contact KK2 on one side and to contact K1 on the other. Meanwhile, inputs Z0–Z4 are shorted by a jumper. 25 connected to each other with low resistance to power the evaluation electronics 29 to protect. By passing a high current through the fuses S1 and S12, the depicted electrical network is adapted to a given configuration of a (not shown) battery module with which the depicted arrangement is to be used in the future.

[0041] Fig. 5 shows a variant of the in Fig. The arrangement shown in Figure 3, in which the fuses S12 to S34 have been replaced by high-resistance resistors R12–R34, is shown. Furthermore, the fuse S01 is omitted without replacement. In this way,

[0042] Fig. Figure 6 shows a schematic top view of a battery module 77 , at which 12 Cells are connected in series in a 1p12s configuration. Pole connectors are used for this purpose. 28 for the electrical connection of any two adjacent poles 22 two memory cells 7 planned. The positions of the poles 22 or the pole connector 28 correspond to the positions of the electrical connections 27 of the control unit 16 . Some of the electrical connections 27 are electrically identical to those in Fig. 3 to Fig. 5 contacts shown K0–K4. The electrical potentials of the poles 22 or the pole connector 28are given as numerical values ​​from 0 V to 48 V.

[0043] Fig. Figure 7 shows a schematic representation of a battery module. 77 , which is basically identical in construction to the one in Fig. 6 battery module shown 77 is. Only the pairwise, identical orientation of the cells. 7 and the pairwise series connection to a 2p6s configuration and the resulting maximum voltage of 24 V distinguishes the battery module 77 electrically from the in Fig. 6 arrangement shown. In comparison with Fig. 6. It is also noticeable that the positions of the electrical connections 27 of the control unit 16 are identical. In other words, the same electrical connections can be used. 27 for electrical contact between the control unit 16 and the battery module 77only the (not shown) electrical configuration of the network between the (not shown) evaluation electronics and the electrical connections. 27 The configuration of the schematically depicted control unit differs. 16 from that of the in Fig. 6 control unit shown 16 The maximum voltage of the battery module 77 is 24 V

[0044] Fig. Figure 8 shows a further modification of the one in Fig. 6 and Fig. 7 arrangement shown, in which the battery module 77 It is built in a 3p4s configuration and electrically connected accordingly. Each module contains three memory cells. 7 They are electrically oriented in the same direction and connected in series with the others. The maximum voltage of the battery module 77 amounts 16 V.

[0045] The Fig. 9 and Fig. 10 show the ones in the Fig. 6 to Fig. 8 battery modules shown 77 in a 4p3s or 6p2s configuration, resulting in a respective maximum voltage of 12 V or 8 V results. All those in the Fig. 6 to Fig. 10 electrical connections shown 27 of the control unit according to the invention 16 are located in identical positions, which is why the changes to the hardware are limited to configurations of the respective network of the control units shown.

[0046] The Fig. 11 to Fig. Figure 15 shows schematic representations for modifying the networks of the respective control unit. 16 , which is now located at contacts K0–K12 and ports Z00–Z12. The network to Fig. Figure 11 is to be adapted to a 1p12s configuration of the associated (not shown) battery module. To represent the pure series connection of the battery cells, the balancing resistors R are B The interconnecting fuses S12–S1112 are blown using (not shown) configuration contacts. In other words, an electrical connection between inputs Z00 to Z12 within the network is interrupted (represented by lightning bolts). The same applies to the electrical networks of the Fig. 12 to Fig. 15, which are adapted in this order to a respective 2p6s / 3p4s / 4p3s or 6p2s configuration of the associated battery modules by causing different combinations of the fuses S2–S1112 to trip or burn out by means of a high current.

[0047] The Fig. 16 to Fig. 19 show, on the one hand, the result of a respective in conjunction with the Fig. 12 to Fig. The network configuration shown in 15, on the other hand the arrangement of the electrical bridges 31 (between odd contacts) and 32 (between straight contacts) K–K12. The contact bridges 31 , 32 are electrically identical to the pole connectors 28 , which in the Fig. 7 to Fig. 10 are shown. Here, it represents Fig. 16 an electrical network or control unit adapted to a 2p6s configuration 16 , Fig. 17 an electrical network or control unit adapted to a 3p4s configuration 16 , Fig. 18 an electrical network or control unit adapted to a 4p3s configuration 16 and Fig. 19 an electrical network or control unit adapted to a 6p2s configuration 16 dar.

[0048] Fig. Figure 20 shows a schematic representation of a configuration device. 33 for adapting a control unit 16 to a (not shown) battery module of a predefined configuration. The external electrical contacts 34 correspond spatially to the positions of the poles 22 or the pole connector 28 of the battery module (see Fig. 6– Fig. 10) A short-circuit bridge 25 is set up, during configuration the inputs of the evaluation electronics 29 of the control unit 16 to short-circuit it for protection. The voltage of an energy source 26 (see also) Fig. 4) is via an evaluation unit 35 in pairs to the external electrical contacts 34placed to adapt the (not shown) fuses in the electrical network of the respective (not shown) control unit to the configuration of the (not shown) battery module.

[0049] Fig. Figure 21 shows a flowchart illustrating the steps of an embodiment of a method according to the invention for adapting a control unit for use with a battery module of a predefined configuration. For this purpose, in step 100 the predefined configuration of the battery module via a barcode and an electrical measurement (e.g. by a configuration device according to Fig. 20). Depending on the predefined configuration, in step 200Electrical connections between the control unit's configuration components are contacted to adapt the network to the predefined battery module configuration, and electrical connections between these are opened. Alternatively, in step 200 This involves closing the respective electrical connections between the configuration components of the control unit.

[0050] Even though the aspects of the invention and advantageous embodiments have been described in detail with reference to the exemplary embodiments explained in conjunction with the accompanying drawing figures, modifications and combinations of features of the illustrated exemplary embodiments are possible for the person skilled in the art without leaving the scope of the present invention, the scope of which is defined by the accompanying claims. Reference symbol list 1 control unit connection 2 High-voltage cover connection 3 high-voltage busbar extensions 4 cell isolations 5 Temperature sensor 6 pipe bushings 7 multiple memory cells 8 side plate bodies 9 isolation pages 10 Insulation end cover 11 End plate bodies 15 top cover 16 electronic control unit 17 cell connectors 18 positive high-voltage busbar 19 negative high-voltage busbar 20 busbar holders 21 End plate carriers 22 external electrical contacts of the battery module 23 Inverter 24 traction machine 25 Short-circuit bridge 26 Configuration voltage source 27 electrical connections of the control unit 28 pole connectors 29 Evaluation electronics 30 Arrangement 31, 32 contact bridges 33 Configuration setup 34 external electrical contacts of the configuration device 35 evaluation unit 100, 200 process steps K Contact KK configuration component / configuration contact R12–R34 high resistance R B Balancing resistance S fuse 1p12s 12 memory cells connected in series 2p6s 6 memory cell pairs connected in series 3p4s 4-fold series connection of three parallel connected memory cells 4p3s 3-fold series connection of four parallel connected memory cells 6p2s 2-fold series connection of six parallel connected memory cells QUOTES INCLUDED IN THE DESCRIPTION

[0051] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0052] DE 102013001466 A1

[0010] DE 102013221379 A1

[0011] DE 102009036086 A1

[0012]

Claims

[1] Control unit for the operation of a module of a plurality of identical electrical storage cells ( 7 ), hereinafter referred to as "battery module ( 77 )“, where the battery module ( 77 ) a large number of external electrical contacts ( 22 ) has and the control unit ( 16 ) includes: – a large number of electrical connections ( 27 ), whose positions are relative to the positions of the external electrical contacts ( 22 ) of the battery module ( 77 correspond, – an evaluation electronics ( 29 ), – a multitude of electrical inputs (Z0–Z12) between the electrical terminals ( 27 ) and the evaluation electronics ( 29 ) and – a passive electrical network between the inputs (Z0–Z12) and the electrical terminals ( 27), wherein the electrical network has external configuration components (CC) which are used to adapt the control unit ( 16 ) to a battery module that is electrically configured in a first way ( 77 ) or to a battery module configured electrically in a second way ( 77 ) are set up. [2] Control unit according to claim 1, wherein the configuration contacts (KK1–KK4) are provided for the purpose of adapting the control unit ( 16 ) – to establish an electrical connection with each other and / or – to address an electrical predetermined breaking point between each other. [3] Control unit according to claim 1 or 2, wherein the electrical network – Resistors (R B ) for charge equalization between the storage cells ( 7 ), hereinafter referred to as “balancing resistors (R B )" and – Fuses (S01–S1112) exhibits, whereby – at least one balancing resistor (R) for each of the many electrical inputs (Z0–Z12) B ) and a fuse (S01–S1112) is assigned and wherein – the multitude of electrical inputs (Z0–Z12) are electrically connected to each other in pairs via a respective additional fuse (S01–S1112). [4] Control unit according to one of the preceding claims, wherein the predefined electrical configuration is determined by the number – memory cells connected in series ( 7 ) and – parallel connected memory cells ( 7 ) is defined. [5] Control unit according to one of the preceding claims, wherein the plurality of external electrical connections ( 27 ) of the control unit ( 16) are essentially arranged in two straight rows, the distance between which is determined in particular by the distance between a respective negative pole and a corresponding positive pole of a memory cell ( 7 ) is determined. [6] Control unit according to claim 5, wherein – the distance between the straight rows is in a range between 10 cm and 25 cm, in particular in a range between 15 cm and 20 cm and / or – a distance between the nearest external electrical connections ( 27 ) of the control unit ( 16 ) in a range between 1 cm and 15 cm, in particular in a range between 3 cm and 10 cm. [7] Configuration device for adapting a control unit ( 16 ) according to any one of claims 1 to 6 for use with a battery module ( 77 ) comprising a predefined electrical configuration – external electrical contacts ( 34), whose positions are relative to the positions of the external electrical connections ( 27 ) of the control unit ( 16 ) and / or the positions of the external configuration components (CC) of the control unit ( 16 correspond and – an evaluation unit ( 35 ), which is set up, – the predefined electrical configuration of the battery module ( 77 ) to determine and – an electrical voltage between the electrical contacts ( 34 ) to generate the control unit ( 16 ) to adapt to the predefined electrical configuration. [8] Configuration device according to claim 7, wherein the external electrical contacts ( 34 ), between which the electrical voltage is applied, are selected depending on the predefined electrical configuration. [9] Configuration device according to claim 7 or 8, wherein the configuration device (33 ) a short-circuit bridge ( 25 ) which is set up to connect the electrical inputs (Z0–Z12) of the control unit ( 16 ) during a configuration of the control unit ( 16 to bridge the gap. [10] Method for adapting a control unit ( 16 ) according to any one of claims 1 to 6 for use with a battery module ( 77 ) a predefined configuration encompassing the steps - Determine ( 100 ) the predefined configuration and depending on the predefined configuration – Closing and / or - Open ( 200 ) electrical connections between the configuration components (CC) of the control unit ( 16 ) to adapt the network to the predefined configuration. [11] arrangement encompassing – a control unit ( 16 ) according to any one of the preceding claims 1 to 6 and – a battery module ( 77 ) a predefined electrical configuration. [12] Means of transport – a large number of control units ( 16 ) according to any one of the preceding claims 1 to 6, and – a large number of battery modules ( 77 ) a predefined electrical configuration, wherein – each of the battery modules ( 77 ) is set up by one of the control units ( 16 ) to be operated.

Citation Information

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