Battery system configuration method and electronic terminal device

Abstract

This application relates to a battery system configuration method and electronic device. The method, applied to an electronic terminal device, comprises: obtaining battery pack parameters of multiple battery packs; obtaining the battery system requirement parameters in response to a first operation instruction for the battery system requirement parameters; and determining or outputting a battery pack connection scheme based on the battery pack parameters of the multiple battery packs and the battery system requirement parameters, the battery pack connection scheme being used to indicate how to connect the multiple battery packs to form the battery system. This method can reduce the difficulty of battery system configuration while also improving battery pack utilization and service life.

Description

Technical Field

[0001] The present application relates to the field of new energy battery technology, and in particular to a configuration method for a battery system and an electronic terminal device. Background Art

[0002] Currently, the rated capacity and rated voltage of individual battery packs available on the market are fixed. To meet different power requirements, multiple purchased battery packs can be connected in series and / or parallel to ensure that the connected battery packs have the required rated capacity and rated voltage. For example, a user can calculate the rated voltage of a single battery pack and the required rated voltage to determine the connection method between multiple battery packs.

[0003] However, because the battery packs connected by the user may not be purchased from the same batch, or some battery packs may have been used, it is easy for each battery pack's current voltage parameters, state of charge (SOC) parameters, and even state of health (SOH) parameters to be inconsistent. In this case, if the user connects battery packs with inconsistent parameters, not only will their power needs not be accurately met, but the battery pack's service life may also be shortened.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the Invention

[0005] Based on this, it is necessary to provide an automated battery system configuration method and electronic terminal device to address the above technical problems, thereby avoiding users' incorrect connection of battery packs, reducing the difficulty of configuring the battery system, and improving the utilization rate of battery packs in the battery system.

[0006] To this end, one aspect of the present application provides a method for configuring a battery system, the method being applied to an electronic terminal device, the method comprising:

[0007] Get battery pack parameters of multiple battery packs;

[0008] In response to a first operation instruction for a battery system requirement parameter, obtaining the battery system requirement parameter;

[0009] A battery pack connection scheme is determined or outputted based on the battery pack parameters of the plurality of battery packs and the battery system requirement parameters, where the battery pack connection scheme is used to indicate how to connect the plurality of battery packs to form the battery system.

[0010] Optionally, in combination with any of the above aspects, in another implementation of this aspect, the obtaining of the battery system requirement parameter in response to the first operation instruction for the battery system requirement parameter includes:

[0011] determining, based on battery pack parameters of the plurality of battery packs, at least one alternative voltage level and / or alternative charge capacity obtained by connecting the plurality of battery packs;

[0012] In response to a selection operation of at least one of the alternative voltage level and / or alternative charge capacity, the selected alternative voltage level and / or alternative charge capacity is determined as the battery system requirement parameter.

[0013] Optionally, in combination with any of the above aspects, in another implementation of this aspect, determining or outputting a battery pack connection solution based on the battery pack parameters of the plurality of battery packs and the battery system requirement parameters includes:

[0014] determining at least one alternative connection scheme based on the battery system requirement parameters and battery pack parameters of the plurality of battery packs;

[0015] Determining the battery pack connection scheme from the at least one alternative connection scheme;

[0016] Output the battery pack connection scheme.

[0017] Optionally, in combination with any of the above aspects, in another implementation of this aspect, determining the battery pack connection solution from the at least one alternative connection solution includes:

[0018] determining the battery pack connection scheme from the at least one alternative connection scheme according to the charge capacity corresponding to each alternative connection scheme; or

[0019] The at least one alternative connection scheme is output, and in response to a second operation instruction for the at least one alternative connection scheme, the battery pack connection scheme is determined from the at least one alternative connection scheme.

[0020] Optionally, in combination with any of the above aspects, in another implementation of this aspect, determining at least one alternative connection solution according to the battery system requirement parameters and battery pack parameters of the plurality of battery packs includes:

[0021] Determining the number of battery pack series units based on the battery system requirement parameters and battery pack parameters of the plurality of battery packs, each of the battery pack series units including one battery pack or several parallel battery packs;

[0022] Determining a range of the number of battery packs corresponding to the battery pack series unit according to the number of units and the number of battery packs of the plurality of battery packs;

[0023] The at least one alternative connection solution is determined according to the number of units and the number range.

[0024] Optionally, in combination with any of the above aspects, in another implementation of this aspect, determining the at least one alternative connection solution based on the number of units and the number range includes:

[0025] When the number of the units is equal to one, any number of battery packs are selected from the plurality of battery packs for parallel connection to form the at least one alternative connection scheme; or

[0026] When the number of cells is greater than one, determining grouping parameters of the battery pack according to the number range;

[0027] Connecting the battery packs corresponding to the grouping parameters in parallel to form battery pack series units corresponding to the grouping parameters;

[0028] The battery pack series cells corresponding to the grouping parameters are connected in series to form the at least one alternative connection scheme.

[0029] Optionally, in combination with any of the above aspects, in another implementation of this aspect, the method further includes:

[0030] In a case where there are a plurality of battery packs connected in parallel in the battery pack connection scheme, determining a voltage difference between the plurality of battery packs connected in parallel;

[0031] In response to a comparison result that the voltage difference is greater than or equal to a preset voltage threshold, first prompt information is determined or output, where the first prompt information is used to instruct charging a battery pack with a smaller voltage among the multiple battery packs connected in parallel.

[0032] Optionally, in combination with any of the above aspects, in another implementation of this aspect, the method further includes:

[0033] In a case where there are a plurality of battery packs connected in series in the battery pack connection scheme, determining a difference in remaining power between the plurality of battery packs connected in series;

[0034] In response to the comparison result that the remaining power difference is greater than or equal to the preset power threshold, second prompt information is determined or output, and the second prompt information is used to instruct the battery pack with the smaller remaining power among the multiple battery packs connected in series to charge.

[0035] Optionally, in combination with any of the above aspects, in another implementation of this aspect, the method further includes:

[0036] In response to signals indicating that the battery packs are connected, detecting and obtaining a current connection mode corresponding to each of the battery packs;

[0037] Match the current connection mode corresponding to each battery pack with the battery pack connection scheme, and in response to the result that the battery pack connection scheme fails to match the current connection mode, determine or output a third prompt information, wherein the third prompt information is used to indicate that the current connection mode should be adjusted.

[0038] Optionally, in combination with any of the above aspects, in another implementation of this aspect, before detecting and obtaining a current connection mode corresponding to each battery pack in response to a signal indicating that the battery packs have completed connection, the method further includes:

[0039] According to the battery pack connection scheme, controlling the disconnection of working power supplies of the plurality of battery packs;

[0040] The detecting and obtaining a current connection mode corresponding to each of the battery packs in response to a signal indicating that the battery packs have completed connection, includes:

[0041] In response to a signal indicating that connection of the plurality of battery packs is completed, controlling the working power supplies of the plurality of battery packs to be turned on;

[0042] A power-on detection is performed on the multiple battery packs after they are turned on to obtain the current connection mode corresponding to each battery pack.

[0043] Optionally, in combination with any of the above aspects, in another implementation of this aspect, the method further includes:

[0044] In response to a result that the battery pack connection scheme successfully matches the current connection mode, obtaining real battery pack parameters corresponding to the plurality of connected battery packs;

[0045] When the actual parameters of the battery pack meet preset conditions, power balancing processing is performed on the multiple battery packs.

[0046] Optionally, in combination with any of the above aspects, in another implementation of this aspect, when the real parameters of the battery pack meet preset conditions, performing power balancing processing on the multiple battery packs includes:

[0047] In a case where there are a plurality of battery packs connected in parallel in the battery pack connection scheme, determining a difference in battery pack parameters between the plurality of battery packs connected in parallel;

[0048] In response to a comparison result that the difference in the battery pack parameter is greater than or equal to a preset threshold, performing the following operations on the plurality of battery packs connected in parallel:

[0049] The battery pack with larger battery pack parameters is controlled to perform parallel power balancing processing on the battery pack with smaller battery pack parameters through a pre-charging circuit.

[0050] Optionally, in combination with any of the above aspects, in another implementation of this aspect, when the real parameters of the battery pack meet preset conditions, performing power balancing processing on the multiple battery packs includes:

[0051] In the case where there are multiple battery packs connected in series in the battery pack connection scheme, the following operations are performed on the multiple battery packs connected in series:

[0052] The battery pack with larger battery pack parameters is controlled to adopt a discharge mode to perform series power balancing processing.

[0053] Optionally, in combination with any of the above aspects, in another implementation of this aspect, before obtaining battery pack parameters of the plurality of battery packs, the method further includes:

[0054] Obtain and display the battery pack parameters of multiple candidate battery packs in connection;

[0055] In response to a selection operation on the candidate battery pack, a plurality of the battery packs are determined to be selected candidate battery packs.

[0056] Optionally, in combination with any of the above aspects, in another implementation of this aspect, the method further includes:

[0057] In response to a determination that the battery pack parameter meets a preset condition, the candidate battery pack is set to a selectable state.

[0058] Optionally, in combination with any of the above aspects, in another implementation of this aspect, when the electronic terminal device is a mobile electronic terminal device, each of the battery packs is connected to the mobile electronic terminal device via any one of Bluetooth, wireless local area network, or a cloud server;

[0059] In the case where the electronic terminal device is a display control screen, each of the battery packs is connected to the display control screen via any one of Bluetooth, wireless local area network, and bus communication.

[0060] Optionally, in combination with any of the above aspects, in another implementation of this aspect, the method further includes:

[0061] In the case where the electronic terminal device is a mobile electronic terminal device, a host control terminal is determined from the plurality of battery packs, the host control terminal being used to control the plurality of battery packs;

[0062] In the case where the electronic terminal device is a display control screen, the display control screen is used as the host control terminal.

[0063] In another aspect of the present application, an electronic terminal device is provided, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method described in any one of the above aspects when executing the computer program.

[0064] In another aspect of the present application, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method described in any one of the above aspects are implemented.

[0065] Another aspect of the present application provides a computer program product, comprising a computer program, which implements the steps of the method described in any one of the above aspects when executed by a processor.

[0066] As described above, the battery system configuration method provided in the present application enables the electronic terminal device to automatically configure the corresponding battery pack connection solution based on the battery pack parameters of each battery pack and the user's required parameters for the battery system, thereby reducing the configuration difficulty of the battery system and improving the configuration flexibility of the battery system. At the same time, it is also beneficial to improve the utilization rate and service life of the battery pack in the battery system.

[0067] The above summary is provided to introduce some concepts in a simplified form, which are further described in detail in the detailed description below. The above summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter. The claimed subject matter is not limited to implementations that solve any or all of the disadvantages identified in the background. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can also be obtained based on these drawings without paying creative labor. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for those skilled in the art by reference to specific embodiments.

[0069] Figure 1 A diagram of an application environment for implementing a configuration method of a battery system in various embodiments of the present application.

[0070] Figure 2aA flowchart of a battery system configuration method provided in an embodiment of the present application.

[0071] Figure 2b A schematic diagram of a series connection circuit provided in an embodiment of the present application.

[0072] Figure 2c A schematic diagram of a parallel connection circuit provided in an embodiment of the present application.

[0073] Figure 2d A schematic diagram of a battery pack connection solution provided in an embodiment of the present application.

[0074] Figure 3 A flowchart illustrating the steps for determining a battery pack connection solution provided in an embodiment of the present application.

[0075] Figure 4a This is a flow chart of the steps for determining an alternative connection solution provided in an embodiment of the present application. Figure 1 .

[0076] Figure 4b It is a schematic diagram of a battery pack series unit provided in an embodiment of the present application.

[0077] Figure 4c This is a schematic diagram of an alternative connection solution provided in an embodiment of the present application.

[0078] Figure 5 This is the second flow chart of the steps for determining an alternative connection solution provided in an embodiment of the present application.

[0079] Figure 6 A flow chart of the connection mode detection steps provided in an embodiment of the present application.

[0080] Figure 7 A circuit diagram of a power balancing process provided in an embodiment of the present application.

[0081] Figure 8 This is a diagram of a display interface of an electronic terminal device provided in an embodiment of the present application.

[0082] Figure 9 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0083] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0084] It should be noted that, in this document, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0085] It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the term "if," as used herein, may be interpreted as "upon," "when," or "in response to a determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms "comprising" and "including" indicate the presence of the recited features, steps, operations, elements, components, items, types, and / or groups, but do not preclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or," "and / or," "including at least one of the following," etc., as used herein, may be interpreted as inclusive, meaning any one or any combination. An exception to this definition occurs only when a combination of elements, functions, steps, or operations are inherently mutually exclusive in some manner.

[0086] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are shown in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence in the order indicated by the arrows. Unless clearly stated herein, the execution of these steps is not strictly limited in order, and they can be performed in other orders. Moreover, at least a portion of the steps in the figure may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0087] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0088] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0089] The configuration method of the battery system provided in the embodiment of the present application can be applied to Figure 1 In the application environment shown, the electronic terminal device 102 and the battery pack 104 can communicate with each other via any one of a variety of communication methods such as Bluetooth, wireless local area network or bus.

[0090] Specifically, during the battery system configuration process, the user can obtain battery pack parameters for multiple battery packs 104 through the electronic terminal device 102. By operating the battery system requirement parameters on the operation interface of the electronic terminal device 102, the electronic terminal device 102 is triggered to respond to a first operation instruction for the battery system requirement parameters and obtain the battery system requirement parameters determined by the user. Based on the battery pack parameters of the multiple battery packs 104 and the battery system requirement parameters, the electronic terminal device 102 determines or outputs a battery pack connection scheme between the multiple battery packs 104 that meets the battery system requirement parameters, thereby instructing the user to connect the multiple battery packs 104 in the battery pack connection scheme according to the connection method specified in the battery pack connection scheme to form a corresponding battery system.

[0091] The electronic terminal device 102 may be, but is not limited to, various personal computers, laptops, smartphones, tablet computers, IoT devices, and portable wearable devices. IoT devices may include smart energy monitoring devices, smart TVs, smart car devices, etc. Portable wearable devices may include smart watches, smart bracelets, head-mounted devices, etc.

[0092] The battery pack 104 may be a battery pack with communication function, and the number of battery packs 104 may be set according to the requirements of actual application scenarios.

[0093] In one embodiment, Figure 2a As shown, a configuration method of a battery system is provided, which is applied to Figure 1 Taking the electronic terminal device 102 in FIG. 1 as an example, the method includes the following steps:

[0094] Step S202: Obtain battery pack parameters of multiple battery packs.

[0095] Among them, the battery pack parameters may include but are not limited to any one or more of the various parameters such as the remaining battery pack power, battery pack voltage, battery pack rated capacity, state of charge parameters (State of charge, referred to as SOC parameters), or state of health parameters (State of Health, referred to as SOH parameters).

[0096] Specifically, if there is a physical connection between the electronic terminal device and the battery pack (e.g., a connection implemented by a bus, port, or communication line), the electronic terminal device can directly determine the battery pack to communicate with through the physical connection and obtain battery pack parameters from the battery pack. In this case, due to the high stability of the physical connection, communication interference between the electronic terminal device and the battery pack can be reduced, thereby improving the stability of communication between the electronic terminal device and the battery pack.

[0097] When there is a wireless connection between the electronic terminal device and the battery pack (for example, a connection implemented by wireless LAN, Bluetooth, etc.), the electronic terminal device can obtain the battery pack parameters of multiple battery packs within the wireless communication range through the wireless connection. In this case, since there is no physical connection, the flexibility of the deployment of the electronic terminal device and the battery pack can be improved, and the communication range between the electronic terminal device and the battery pack can be expanded, so that the user can remotely obtain the battery pack parameters of the battery pack and perform corresponding operations.

[0098] Step S204 : acquiring the battery system requirement parameters in response to the first operation instruction for the battery system requirement parameters.

[0099] Among them, the battery system requirement parameters can be used to characterize the target performance parameters expected for the battery system after multiple battery packs are connected. The battery system requirement parameters may include but are not limited to any one or more of the various battery system parameters such as voltage parameters, charge capacity parameters, etc.

[0100] Specifically, the electronic terminal device may, in response to a first user-triggered operation instruction for a battery system requirement parameter, obtain the battery system requirement parameter corresponding to the first operation instruction. For example, if the electronic terminal device is equipped with an input device, the electronic terminal device may receive the battery system requirement parameter input by the user via the input device. If the electronic terminal device is equipped with a display device, the electronic terminal device may display multiple battery system parameters to be selected to the user via the display device, receive the battery system parameter selected by the user via the display device, and use the battery system parameter as the battery system requirement parameter. As another possible embodiment, the electronic terminal device may also accept the battery system parameter input by the user and determine whether the battery system parameter input by the user is reasonable based on the battery pack parameters of the battery pack that have been obtained. If the battery system parameter input by the user is determined to be reasonable, the battery system parameter input by the user is used as the battery system requirement parameter. If the determination result is unreasonable, a prompt message is output. The electronic terminal device may determine that the battery system requirement parameter input by the user is reasonable when the multiple battery packs can be combined (connected in series or parallel) to form a battery system that meets the battery system requirement parameter input by the user.

[0101] Step S206 : determining or outputting a battery pack connection solution based on the battery pack parameters of the plurality of battery packs and the battery system requirement parameters.

[0102] The battery pack connection scheme may be used to instruct the user to connect the multiple battery packs to form the battery system.

[0103] Specifically, the electronic terminal device can perform calculations on the battery pack parameters and the battery system requirement parameters based on the series-parallel characteristics of the battery pack, thereby determining or outputting a battery pack connection scheme that meets the battery system requirement parameters. In particular, when at least two battery packs are connected in parallel, the rated output voltage of the resulting battery system is substantially equal to the rated voltage of each battery pack (ignoring the slight voltage difference between each battery pack), and the rated capacity of the battery system is equal to the sum of the rated capacities of each battery pack. Correspondingly, when at least two battery packs are connected in series, the rated output voltage of the resulting battery system is substantially equal to the sum of the rated voltages of each battery pack, and the rated capacity of the battery system is equal to the minimum of the rated capacities of each of the at least two battery packs. Based on this characteristic, the electronic terminal device can automatically determine a battery pack connection scheme that meets the battery system requirement parameters, and can also output the battery pack connection scheme to the user through human-computer interaction, such as displaying the battery pack connection scheme through the display panel of the electronic terminal device or announcing the battery pack connection scheme through the speaker of the electronic terminal device.

[0104] Exemplarily, the battery pack parameters of the multiple battery packs obtained by the electronic terminal device include rated voltage parameters, wherein the rated voltage parameters of each battery pack are 12V (Volt). When the battery system requirement parameter is 48V, it can be determined that the connection scheme that meets the battery system requirement parameter is a scheme of connecting 4 battery packs in series. At this time, the battery system requirement parameters and the battery pack parameters corresponding to the series connection scheme are equal, and the scheme of connecting 4 battery packs in series can be directly used as the determined or output battery pack connection scheme. At this time, the display screen of the electronic terminal device can display a dynamic GUI (Graphical User Interface) interface, showing the number of each battery pack and the corresponding battery pack connection method, for example, connecting battery packs 1#, 2#, 3# and 4# in series in sequence.

[0105] In an example, Figure 2b , a circuit diagram for connecting multiple battery packs in series is provided, wherein each battery pack includes a battery management system 202 (BMS), a voltage measurement circuit 204 , an isolated communication component 206 and a current sensor 208 .

[0106] In another example, Figure 2c , a circuit diagram for connecting multiple battery packs in parallel is provided, wherein each battery pack includes a battery management system 202 , a voltage measurement circuit 204 , an isolated communication component 206 and a current sensor 208 .

[0107] In another example, Figure 2d As shown, after determining the battery pack connection scheme, the electronic terminal device can generate specific connection steps corresponding to the battery pack connection scheme, and push the specific connection steps and the battery pack connection scheme to the user through the user interaction interface, wherein, Figure 2d The diagram shows a connection scheme for a battery system consisting of eight battery packs, two in parallel and four in series.

[0108] The above-mentioned battery system configuration method obtains the battery pack parameters of multiple battery packs in response to the first operation instruction for the battery system requirement parameters, obtains the battery system requirement parameters, and determines or outputs the battery pack connection scheme based on the battery pack parameters of the multiple battery packs and the battery system requirement parameters. The battery pack connection scheme is used to indicate that multiple battery packs are connected to form a battery system, and can automatically configure the corresponding battery pack connection scheme based on the battery pack parameters of the battery pack and the user's requirement parameters for the battery system, thereby reducing the configuration difficulty of the battery system and improving the configuration flexibility of the battery system. At the same time, it is also beneficial to improve the utilization rate and service life of the battery packs in the battery system.

[0109] In one embodiment, step S204, in response to a first operation instruction for a battery system requirement parameter, obtaining the battery system requirement parameter includes: determining at least one alternative voltage level and / or alternative charge capacity obtained by connecting multiple battery packs based on battery pack parameters of multiple battery packs; and in response to a selection operation for at least one alternative voltage level and / or alternative charge capacity, determining the selected alternative voltage level and / or alternative charge capacity as the battery system requirement parameter.

[0110] Specifically, the electronic terminal device can process the voltage parameters of multiple battery packs to determine an alternative voltage level for the battery system obtained by connecting at least one battery pack; wherein the voltage parameter of the battery pack referred to here refers to the rated voltage of the battery pack. For example, the electronic terminal device can use the voltage parameter of a single battery pack as the alternative voltage level obtained by connecting multiple battery packs in parallel. Alternatively, the electronic terminal device can accumulate the voltage parameters of a single battery pack and use the voltage parameter obtained after each accumulation as a new alternative voltage level until the sum of the voltage parameters of multiple battery packs is obtained, and use the sum of the voltage parameters of multiple battery packs as the alternative voltage level obtained by connecting multiple battery packs in series. For example, when the voltage parameter of a single battery pack is 12V, the electronic terminal device can determine that the alternative voltage level obtained by connecting four battery packs includes, but is not limited to, at least one of 12V, 24V, 36V, or 48V.

[0111] Alternatively, the electronic terminal device may also process the charge capacities of multiple battery packs to determine an alternative charge capacity for the battery system obtained by connecting at least one battery pack, where the charge capacity of the battery pack referred to herein refers to the rated charge capacity of the battery pack. For example, if the charge capacity of a single battery pack is 100Ah, the electronic terminal device may determine that the alternative charge capacity obtained by connecting four battery packs includes, but is not limited to, at least one of 100Ah, 200Ah, 300Ah, and 400Ah. The specific operation of determining the alternative charge capacity can be implemented with reference to the above-mentioned method for determining the alternative voltage level and will not be elaborated on here.

[0112] Alternatively, the electronic terminal device may process the voltage parameters and charge capacities of multiple battery packs to determine an alternative voltage level and an alternative charge capacity for the battery system obtained by connecting at least one battery pack. For example, if the voltage parameter of a single battery pack is 12V / 100Ah, the electronic terminal device may determine that the alternative battery system parameters obtained by connecting four battery packs include, but are not limited to, at least one of 12V / 400Ah (four battery packs in parallel), 24V / 200Ah (two in parallel and two in series), 36V / 100Ah (only three battery packs can be connected in series, with the other battery pack not used), or 48V / 100Ah (four battery packs in series).

[0113] Furthermore, at least one selected voltage level and / or charge capacity determined after connecting multiple battery packs is displayed to the user on an interactive interface of the electronic terminal device. In response to the user selecting the at least one selected voltage level and / or charge capacity, the selected selected voltage level and / or charge capacity is determined as the battery system requirement parameter.

[0114] In this embodiment, at least one alternative voltage level and / or alternative charge capacity obtained by connecting the multiple battery packs can be determined based on the battery pack parameters of the multiple battery packs. Each alternative voltage level and / or alternative charge capacity represents the parameter characteristics of the battery system that can be obtained by connecting the multiple battery packs in series or parallel. The electronic terminal device can display the obtained alternative voltage level and / or alternative charge capacity on a display screen for the user to select. The user can select the target alternative voltage level and / or alternative charge capacity through a selection operation based on factors such as load power demand and voltage level requirements in the power system. The selection operation can be an operation such as clicking, dragging, or tapping on a display screen with a touch function, or a selection instruction input by the user through a voice function. In response to the selection operation triggered by the user, the electronic terminal device can use the alternative voltage level and / or alternative charge capacity selected by the user as the battery system requirement parameter. Through this interactive approach, the electronic terminal device can automatically determine one or more optional battery pack connection solutions for the user to select, improving the feasibility of battery system requirement parameters. This prevents users from blindly determining battery pack requirement parameters, which could result in multiple existing battery packs failing to meet user needs. This facilitates the subsequent determination or output of corresponding battery pack connection solutions based on the battery system requirement parameters. Furthermore, due to the method provided in this embodiment, the battery system requirement parameters can be obtained simply by the user performing a selection operation, which improves the portability of the interaction between the electronic terminal device and the user, thereby increasing the efficiency of obtaining the battery system requirement parameters.

[0115] In an optional embodiment, if Figure 3 As shown, step S206, determining or outputting a battery pack connection plan based on the battery pack parameters of the multiple battery packs and the battery system requirement parameters, includes:

[0116] Step S302 : determining at least one alternative connection solution based on the battery system requirement parameters and battery pack parameters of the plurality of battery packs.

[0117] Specifically, after the electronic terminal device obtains the battery pack parameters and battery system requirement parameters of multiple battery packs, it can determine at least one alternative connection scheme for the user to select, wherein the alternative connection scheme refers to a battery pack connection scheme in which the multiple battery packs are connected in series and in parallel to meet the battery system requirement parameters. For example, in the case where the battery system requirement parameters include voltage level, it can be determined based on the voltage level and the voltage parameters of each battery pack to determine how many battery packs need to be connected in series to meet the voltage level requirement, and then at least one alternative connection scheme is determined based on the number of battery packs connected in series and the number of battery packs to be connected. For example, in the case where the series connection scheme includes n battery packs connected in series, if the number of battery packs to be connected is n, the series connection scheme can be directly used as an alternative connection scheme. If the amount of data of the battery packs to be connected is m and m is greater than n, each battery pack can be further connected in parallel based on the series connection scheme to obtain multiple alternative connection schemes. Preferably, the number of battery packs connected in parallel needs to be the same, that is, when the data volume of the battery packs to be connected is m<2n, then only n battery packs can be directly connected in series as an alternative connection scheme; when the data volume of the battery packs to be connected is 2n≤m<3n, then two different alternative connection schemes can be output: n battery packs are directly connected in series and 2n battery packs are used to form 2-in-parallel and n-in-string; when the data volume of the battery packs to be connected is 3n≤m<4n, then two different alternative connection schemes can be output: n battery packs are directly connected in series and 2n battery packs are used to form 2-in-parallel and n-in-string, and three different alternative connection schemes can be output: 3n battery packs are directly connected in series and 3n battery packs are used to form 3-in-parallel and n-in-string, and so on.

[0118] Step S304 : Determine a battery pack connection solution from at least one alternative connection solution.

[0119] Step S306: outputting a battery pack connection plan.

[0120] Specifically, when there is only one alternative connection scheme, the alternative connection scheme can be directly used as a battery pack connection scheme and output to instruct the user to perform corresponding series-parallel connections on multiple battery packs according to the battery pack connection scheme to form a battery system. When there are multiple alternative connection schemes, the battery pack connection scheme can be determined from at least one alternative connection scheme based on the battery pack parameters of the battery pack in each alternative connection scheme and output. Alternatively, a battery pack connection scheme with a smaller number of wiring harnesses, that is, a simpler deployment, can be determined from at least one alternative connection scheme based on the number of wiring harnesses in each alternative connection scheme and output. Alternatively, a battery pack connection scheme with the largest charge capacity can be determined from at least one alternative connection scheme based on the charge capacity of each alternative connection scheme. Alternatively, the user's desired battery pack connection scheme can be selected from at least one alternative connection scheme and output.

[0121] Optionally, the electronic terminal device may also record the outputted battery pack connection plan, and when the battery system is reconfigured, the recorded battery pack connection plan may be directly displayed to the user.

[0122] In this embodiment, by determining at least one alternative connection scheme based on the battery system requirement parameters and the battery pack parameters of multiple battery packs; determining a battery pack connection scheme from at least one alternative connection scheme; and outputting the battery pack connection scheme, the flexibility and diversity of the battery pack connection scheme can be improved.

[0123] In one embodiment, step S304, determining a battery pack connection scheme from at least one alternative connection scheme, includes: determining a battery pack connection scheme from at least one alternative connection scheme based on the charge capacity corresponding to each alternative connection scheme; or, outputting at least one alternative connection scheme, and determining a battery pack connection scheme from at least one alternative connection scheme in response to a second operation instruction for at least one alternative connection scheme.

[0124] Specifically, the electronic terminal device may process the rated charge capacity of each battery pack within each alternative connection scheme, determine the rated charge capacity of each alternative connection scheme based on the series-parallel characteristics of the battery packs, compare the rated charge capacities of each alternative connection scheme, and determine the battery pack connection scheme from at least one alternative connection scheme based on the comparison results, for example, selecting the alternative connection scheme with the largest rated charge capacity as the battery pack connection scheme.

[0125] Alternatively, the electronic terminal device can directly output at least one alternative connection scheme, and in response to a second operation instruction of the user for at least one alternative connection scheme, such as a selection instruction, determine the alternative connection scheme selected by the user from at least one alternative connection scheme, and use the alternative connection scheme selected by the user as the battery pack connection scheme.

[0126] In one example, the electronic terminal device may also sort the multiple alternative connection solutions based on the rated charge capacity of each alternative connection solution, and then output the corresponding alternative connection solutions in the sorted order for the user to select.

[0127] In this embodiment, by determining a battery pack connection scheme from at least one alternative connection scheme based on the rated charge capacity of the battery pack in the alternative connection scheme, the rated charge capacity of the battery pack connection scheme can be improved, thereby improving the battery life of the subsequent battery system formed based on the battery pack connection scheme.

[0128] In one embodiment, Figure 4a As shown, step S302, based on the battery system requirement parameters and the battery pack parameters of the plurality of battery packs, determines at least one alternative connection scheme, including:

[0129] Step S402 : determining the number of series-connected cells in the battery pack according to the battery system requirement parameters and battery pack parameters of the plurality of battery packs.

[0130] In an example, Figure 4b , a schematic diagram of a battery pack series unit 400 is provided. Each battery pack series unit 400 may include one battery pack 402 or several battery packs 402 connected in parallel. Each battery pack series unit 400 is connected in series.

[0131] Specifically, the electronic terminal device can process the battery system requirement parameters and the battery pack parameters of multiple battery packs, and determine the number of battery pack series cells based on the quantitative relationship between the battery system requirement parameters and the battery pack parameters.

[0132] For example, if the battery system requirement parameters include a rated voltage of 48V, and the rated voltage of the battery pack is 12V, then there is a multiple relationship between the battery system requirement parameters and the battery pack parameters. In this case, the number of cells in the battery pack connected in series can be determined to be 4. If the rated voltage of the battery pack is 22V, the quantitative relationship between the battery system requirement parameters and the battery pack parameters can be rounded up to determine the number of cells in the battery pack connected in series to be 2.

[0133] Step S404 , determining a range of the number of battery packs corresponding to the battery pack series connection unit according to the number of cells and the number of battery packs in the plurality of battery packs.

[0134] Specifically, when the number of cells is equal to the number of battery packs in the multiple battery packs, the number of battery packs corresponding to the battery pack series cell can be determined to be 1. When the number of cells is less than the number of battery packs in the multiple battery packs, the electronic terminal device can determine the number range of battery packs corresponding to the battery pack series cell based on the quantitative relationship between the number of cells in the battery pack series cell and the number of battery packs in the multiple battery packs. For example, the quotient of the number of battery packs in the multiple battery packs and the number of cells in the battery pack series cell can be obtained, rounded, and the rounded value used as the upper limit threshold of the number of battery packs in the battery pack series cell, and 1 as the lower limit threshold of the number of battery packs. The number of battery packs can be determined by adding 1 in sequence to obtain the range of battery packs.

[0135] Step S406: Determine at least one alternative connection solution based on the number of units and the number range.

[0136] Specifically, the electronic terminal device may traverse each value in the quantity range to obtain the battery pack series cells corresponding to each value. For the battery pack series cells corresponding to each value, the electronic terminal device may determine an alternative connection scheme corresponding to each value based on the battery pack series cells and the number of cells in the battery pack series cells, thereby obtaining at least one alternative connection scheme.

[0137] In one example, the number of battery packs obtained by the electronic terminal device is 8, and the number of battery pack series units determined according to the battery system requirement parameters is 3. At this time, based on the number of units and the number of battery packs, the number of battery packs corresponding to the battery pack series units can be determined to be in the range of 1 to 2. Figure 4c As shown, the electronic terminal device can connect the battery packs 402 in parallel according to the number range of the battery packs 402 to form corresponding battery pack series cells 400, for example, forming a battery pack series cell 400 corresponding to one battery pack 402, or a battery pack series cell 400 corresponding to two battery packs. The battery pack series cells 400 are thus connected in series to form alternative connection scheme a (three battery packs 402 connected in series) or alternative connection scheme b (two battery packs 402 are connected in parallel, and three battery pack series cells 400 formed in parallel are connected in series).

[0138] In this embodiment, by first determining the number of battery pack series cells based on the battery system requirement parameters and the battery pack parameters of multiple battery packs, then determining the number range of battery packs in each battery pack series cell based on the number of cells, and then determining at least one alternative connection scheme based on the number range of battery packs and the number of battery pack series cells, the diversity of alternative connection schemes can be improved.

[0139] In one embodiment, Figure 5 As shown, step S406, determining at least one alternative connection solution based on the number and range of units, includes:

[0140] Step S502: determine whether the number of units is greater than one.

[0141] Specifically, after determining the number of cells in the battery pack connected in series, the electronic terminal device may determine whether the number of cells is greater than one. If the number of cells is equal to one, step S504 may be executed; if the number of cells is greater than one, step S506 and subsequent steps may be executed.

[0142] Step S504 : selecting any number of battery packs from the plurality of battery packs for parallel connection to form at least one alternative connection scheme.

[0143] Specifically, there is only one series unit formed by multiple battery packs, which means that all battery packs should be connected in parallel to form a battery system. Therefore, any number of battery packs can be selected from the multiple battery packs and connected in parallel to form the alternative connection scheme. The arbitrary number refers to an integer greater than or equal to 1 and less than or equal to the total number of battery packs.

[0144] Step S506 : Determine the grouping parameters of the battery packs according to the quantity range.

[0145] The battery pack grouping parameter is determined based on the number range of battery packs corresponding to the battery pack series units. For example, when the number of battery packs ranges from 1 to Y (Y is an integer greater than 1), any value from 1 to Y can be used as the battery pack grouping parameter.

[0146] Step S508 , connecting the battery packs corresponding to the grouping parameters in parallel to form battery pack series units corresponding to the grouping parameters.

[0147] Step S510 , connecting the battery pack series cells corresponding to the grouping parameters in series to form at least one alternative connection scheme.

[0148] Specifically, the electronic terminal device can connect battery packs with the same grouping parameters in parallel to form a battery pack series unit corresponding to the grouping parameter. For example, when the battery pack grouping parameter is Y, every Y battery packs can be connected in parallel to form a battery pack series unit corresponding to the grouping parameter Y.

[0149] The battery pack series cells corresponding to the grouping parameter are connected in series to form at least one alternative connection scheme. For example, when the grouping parameter is Y and the number of cells is M, the electronic terminal device can connect the M battery pack series cells corresponding to the grouping parameter Y in series to form a battery system connection method of Y parallel and M series, thereby forming at least one alternative connection scheme that meets the required parameters of the battery system.

[0150] In this embodiment, the method for generating alternative connection schemes in different scenarios is determined based on the number of battery pack series cells. When the number of cells is one, any number of battery packs are directly selected from multiple battery packs for parallel connection to form at least one alternative connection scheme. When the number of cells is greater than one, the battery pack series cells corresponding to the battery pack grouping parameters are determined according to the number range of battery packs, so that the battery pack series cells of the number of cells are connected to form a corresponding alternative connection scheme. This can simplify the steps for generating the alternative connection scheme, improve the efficiency of generating the alternative connection scheme, and at the same time expand the application scenarios of the alternative connection scheme and increase the diversity of the alternative connection scheme.

[0151] In one embodiment, the electronic terminal device may also obtain battery pack parameters corresponding to each alternative connection solution, sort the multiple alternative connection solutions based on the battery pack parameters, and output the sorted multiple alternative connection solutions and the battery pack parameters of each alternative connection solution to the user, or directly output the alternative connection solution with the largest battery pack parameters as the battery pack connection solution.

[0152] Specifically, the electronic terminal device can process the rated capacity and health status parameter of each battery pack and use the product of the rated capacity and health status parameter as the current theoretical capacity of each battery pack. The electronic terminal device can also process the current theoretical capacity of each battery pack in a battery pack series unit and use the sum of the current theoretical capacities as the current theoretical capacity of the battery pack series unit.

[0153] For each alternative connection scheme, compare the current theoretical capacity of each battery pack series cell in each alternative connection scheme, and use the current theoretical capacity with the smallest value as the theoretical capacity of the alternative connection scheme. Rank the multiple alternative connection schemes based on the theoretical capacity.

[0154] In one example, there are 10 battery packs numbered ID1 to ID10, the theoretical capacity of each battery pack is CAP1 to CAP10, and CAP1 ≥ CAP2 ≥ CAP3 . . . ≥ CAP10.

[0155] When the number of battery pack series units is 4 and the number of battery packs in each battery pack series unit is 2, in order to form an alternative connection scheme with the largest theoretical capacity, the electronic terminal device can obtain 8 battery packs with larger theoretical capacity (i.e., battery packs ID1 to ID8), and connect the battery pack ID1 with the largest theoretical capacity and the battery pack ID8 with the smallest theoretical capacity in parallel to form a battery pack series unit 1. Similarly, the battery pack ID2 with a larger theoretical capacity and the battery pack ID7 with a smaller theoretical capacity can be connected in parallel to form a battery pack series unit 2. The battery pack ID3 with a larger theoretical capacity and the battery pack ID6 with a smaller theoretical capacity can be connected in parallel to form a battery pack series unit 3. The battery pack ID4 with a larger theoretical capacity and the battery pack IDn-1 with a smaller theoretical capacity can be connected in parallel to form a battery pack series unit 4.

[0156] At this time, the theoretical capacity of the alternative connection scheme formed by connecting multiple battery packs is the minimum value of the theoretical capacity of the battery pack series units 1, 2, 3 and 4.

[0157] In this embodiment, the battery pack parameters corresponding to the alternative connection schemes are determined based on the battery pack parameters of the battery pack, and the battery pack parameters are sorted according to their numerical values. The sorted alternative connection schemes are determined or output, and the battery pack parameters of the alternative connection schemes can be intuitively displayed to the user, thereby facilitating the user to select the desired battery pack connection scheme based on the battery pack parameters.

[0158] In one embodiment, a battery system configuration method is provided, comprising: determining a voltage difference between the plurality of battery packs connected in parallel in a battery pack connection scheme, and determining or outputting a first prompt message in response to a comparison result that the voltage difference is greater than or equal to a preset voltage threshold.

[0159] In particular, multiple battery packs may have different remaining charges, usage times, and specifications, resulting in different voltages for each battery pack. When the voltage difference between the battery packs is small, the battery packs can be connected directly in parallel. However, when the voltage difference between the battery packs exceeds a certain value, directly connecting the battery packs in parallel will generate a large current circulation, which may directly burn the battery packs and pose a significant safety risk to the user when connecting the battery packs. Therefore, specifically, upon determining that the battery pack connection scheme includes multiple battery packs connected in parallel, the electronic terminal device can obtain the voltage parameters of each battery pack connected in parallel. The voltage parameters of the multiple battery packs connected in parallel are processed to determine the voltage difference between the multiple battery packs connected in parallel. The voltage difference is compared with a preset voltage threshold. If the voltage difference is greater than or equal to the preset voltage threshold, a first prompt message is determined or output in response to the comparison result that the voltage difference is greater than or equal to the preset voltage threshold, indicating that the battery pack with the lower voltage among the multiple battery packs connected in parallel should be charged.

[0160] Among them, the first prompt information can be used to instruct the battery pack with the lower voltage among the multiple battery packs connected in parallel to charge. In a specific implementation method, several interface components (such as battery pack icons) can be displayed in the display interface of the electronic terminal device, and each interface component corresponds to each battery pack one by one. The first prompt information can be implemented by changing the interface component corresponding to the battery pack that needs to be charged in the display interface of the electronic terminal device, such as controlling the interface component to flash, gray out (i.e., change from a color state to a grayscale state), and outputting prompt information in a pop-up window.

[0161] In this embodiment, the voltages of multiple battery packs to be connected in parallel are compared to determine a voltage difference. If the voltage difference is less than a preset voltage threshold, a first prompt message is generated or output to instruct the user to charge the battery pack with the lower voltage among the multiple parallel-connected battery packs. After charging is complete, a further prompt message (such as a fourth prompt message, provided in the same manner as the first prompt message) is output to indicate to the user that the current battery pack meets the parallel connection requirements. This eliminates the need for the user to measure the voltage of or physically connect each battery pack, thus avoiding safety risks associated with significant voltage differences among multiple parallel-connected battery packs in the battery pack connection scheme and effectively improving the battery pack's service life and safety during use.

[0162] In one embodiment, a battery system configuration method is provided, comprising: determining a difference in remaining power between the plurality of battery packs connected in series in a battery pack connection scheme; and determining or outputting a second prompt message in response to a comparison result that the difference in remaining power is greater than or equal to a preset power threshold.

[0163] The second prompt information can be used to instruct the battery pack with the smallest remaining power among the multiple battery packs connected in series to charge. The specific implementation of the second prompt information can refer to the implementation method of the first prompt information provided in the above embodiment, and will not be elaborated here.

[0164] Specifically, when determining that a battery pack connection scheme includes multiple battery packs connected in series, the electronic terminal device can obtain the remaining power parameter of each battery pack connected in series. The remaining power parameters of each of the battery packs connected in series are processed to determine the difference in remaining power between the multiple battery packs connected in series.

[0165] Compare the remaining power difference with the preset power threshold. When the remaining power difference is greater than or equal to the preset power threshold, a second prompt message can be determined or output in response to the comparison result that the remaining power difference is greater than or equal to the preset power threshold to instruct the user to charge the battery pack with the smaller remaining power among the multiple battery packs connected in series.

[0166] When it is determined that the remaining power difference is less than the preset power threshold, the user may be prompted to directly connect the battery pack, or no processing may be performed.

[0167] In this embodiment, the remaining power of multiple battery packs connected in series is compared to determine the difference in remaining power. When the remaining power parameter is less than a preset power threshold, a second prompt message is determined or output to instruct the user to charge the battery pack with the smaller remaining power among the multiple battery packs connected in series. This can avoid excessive differences in the remaining power of multiple battery packs connected in series in the battery pack connection scheme, thereby improving the service life and safety of the battery pack.

[0168] In one embodiment, Figure 6 As shown, a configuration method of a battery system is also provided, including:

[0169] Step S602 : Controlling the disconnection of working power supplies of multiple battery packs according to the battery pack connection plan.

[0170] Specifically, the electronic terminal device may determine that the user has completed viewing the battery pack connection plan after the battery pack connection plan is displayed to the user for a preset period of time, or after the user exits the battery pack connection plan display interface. Based on the battery packs connected in the battery pack connection plan, the electronic terminal device may send control information to the corresponding multiple battery packs via the communication connection established between the electronic terminal device and the battery packs, thereby controlling the disconnection of the working power of the corresponding multiple battery packs to ensure operational safety when the battery packs are subsequently connected.

[0171] Step S604 , in response to the signal indicating that the connection of the multiple battery packs is completed, controlling the working power supplies of the multiple battery packs to be turned on.

[0172] Step S606 , performing power-on detection on the multiple battery packs that have been turned on to obtain the current connection mode corresponding to each battery pack.

[0173] Specifically, the electronic terminal device can control the working power supply of the multiple connected battery packs to be turned on in response to a signal that the connection of the multiple battery packs is completed. The multiple battery packs that have been turned on are powered on and the bus voltage in the battery system is measured in sequence. The voltage parameters of each battery pack obtained based on the power-on detection are used to determine the current connection mode of each battery pack. The specific method for determining the connection mode can be the technical solution disclosed in the Chinese patent application with application number 202211004551.6, the entire text of which is hereby cited as part of this application.

[0174] Step S608 : Match the current connection mode corresponding to each battery pack with the battery pack connection solution.

[0175] Specifically, the electronic terminal device can match the current connection mode corresponding to each battery pack with the connection mode in the battery pack connection solution. If the connection modes are determined to be inconsistent, step S610 can be executed. If the connection modes are determined to be consistent, steps S612 to S614 can be executed.

[0176] Step S610 : In response to a result that the battery pack connection solution fails to match the current connection mode, determining or outputting a third prompt message.

[0177] The third prompt information is used to instruct to adjust the current connection mode.

[0178] Specifically, if the electronic terminal device determines that the connection method is inconsistent, in response to the result that the battery pack connection plan fails to match the current connection method, it can determine or output a third prompt message to instruct the user to adjust the current connection method. In one example, if the electronic terminal device determines that one or more battery packs among multiple battery packs are incorrectly connected, it can output the third prompt message to issue an alarm. If the electronic terminal device determines that the battery pack connection method does not match the battery pack connection plan, it can provide a prompt through the third prompt message.

[0179] Step S612 , in response to the result that the battery pack connection solution successfully matches the current connection mode, obtaining the actual battery pack parameters corresponding to the multiple connected battery packs.

[0180] Step S614 : When the actual parameters of the battery packs meet the preset conditions, power balancing processing is performed on the multiple battery packs.

[0181] Among them, the real parameters of the battery pack can be used to characterize any one or more of the various battery pack parameters such as the current actual voltage, current, remaining power, charge capacity, SOH parameter or SOC parameter of the battery pack.

[0182] Specifically, upon determining that the connection modes are consistent, the electronic terminal device can, in response to a successful match between the battery pack connection scheme and the current connection mode, obtain the actual battery pack parameters corresponding to the multiple battery packs detected during power-up. The device then performs computations on the actual battery pack parameters for each battery pack to determine the total voltage and total capacity of the current battery system. Based on the total voltage and total capacity of the current battery system, the device controls the charging or discharging of the battery packs in the battery system to achieve power balancing of the battery packs in the battery system.

[0183] In this embodiment, after the user reviews the battery pack connection plan, the operating power of multiple battery packs is automatically disconnected. In response to a user signal indicating the end of the connection of multiple battery packs, the operating power of multiple battery packs is controlled to be turned on. The current connection mode of each battery pack is determined through power-on detection, thereby improving the safety of battery pack connection operations and the accuracy of detecting the current connection mode. By matching the current connection mode with the battery pack connection plan, prompting the user to make adjustments when a match is not found using a third prompt message, and performing power balancing based on the actual battery pack parameters when a match is found, the accuracy of the battery pack connection and the service life of the connected battery packs can be improved.

[0184] In one embodiment, step S614 performs power balancing on multiple battery packs when the actual parameters of the battery pack meet preset conditions, including: performing parallel power balancing when there are multiple battery packs connected in parallel in the battery pack connection scheme.

[0185] Specifically, the electronic terminal device may obtain battery pack parameters of multiple battery packs connected in parallel, determine a difference in battery pack parameters between the multiple battery packs connected in parallel, compare the battery pack parameter difference with a preset threshold, and, in response to a comparison result that the battery pack parameter difference is greater than or equal to the preset threshold, perform the following operations on the multiple battery packs connected in parallel:

[0186] The pre-charging circuit of the battery pack with higher battery pack parameters (SOC parameters or voltage parameters) is controlled to open, and the battery pack with lower battery pack parameters (SOC parameters or voltage parameters) is charged through the pre-charging circuit until the multiple battery packs connected in parallel after charging reach parallel power balance.

[0187] In one example, the electronic terminal device may also directly control the battery pack with higher battery pack parameters (SOC parameters or voltage parameters) among multiple battery packs connected in parallel to charge the battery pack with lower battery pack parameters (SOC parameters or voltage parameters) in response to a comparison result that the difference in battery pack parameters is less than a preset threshold, until the multiple battery packs connected in parallel achieve parallel power balance after charging.

[0188] In this embodiment, by determining the difference in battery pack parameters between multiple battery packs connected in parallel, when the difference in battery pack parameters is greater than or equal to a preset threshold, the battery pack with larger battery pack parameters is controlled to perform parallel power balancing processing on the battery pack with smaller battery pack parameters through a pre-charging circuit, which can improve the power balancing efficiency and also can use the pre-charging circuit to improve the safety of the power balancing process.

[0189] In one embodiment, step S614 , when the actual parameters of the battery pack meet the preset conditions, power balancing processing is performed on multiple battery packs, including: when there are multiple battery packs connected in series in the battery pack connection scheme, performing series power balancing processing.

[0190] Specifically, the electronic terminal device can obtain battery pack parameters of multiple battery packs connected in series, compare the battery pack parameters of each battery pack, and perform the following processing on the battery pack with higher battery pack parameters (such as SOC parameters) among the multiple battery packs connected in series: control the passive balancing of all cells in the battery pack to turn on, so as to achieve discharge processing of the battery pack with higher battery pack parameters (such as SOC parameters), until the multiple battery packs connected in series after discharge reach series power balance, such as consistent SOC parameters.

[0191] In this embodiment, by discharging a battery pack with larger battery pack parameters among a plurality of battery packs connected in series, the process of series battery balancing can be simplified and the efficiency of series battery balancing can be improved.

[0192] In one embodiment, Figure 7 As shown, a schematic diagram of a battery system 700 with multiple battery packs connected in series and parallel is provided (the figure shows a battery system with 2 parallel connections and n series connections). Among them, battery pack 701, battery pack 702, battery pack 703, battery pack 704, battery pack 70m, and battery pack 70n are all deployed with a battery management system 202, a voltage measurement circuit 204, an isolated communication component 206, and a current sensor 208. Exemplarily, each battery pack can also be deployed with a battery cell, a positive terminal switch, a unipolar positive terminal switch, a positive terminal resistor, a unipolar negative terminal switch, a negative terminal resistor, a MOS charging switch, a MOS discharge switch, a pre-charge circuit switch, and a pre-charge circuit resistor.

[0193] Battery packs 701 and 702 are connected in parallel. Battery packs 703 and 704 are connected in parallel. Battery packs 70m and 70n are connected in parallel. Battery packs 701, 703, and 70m are connected in series. Battery packs 702, 704, and 70n are connected in series.

[0194] Specifically, when the SOC parameter (or voltage parameter) of battery pack 703 is greater than the SOC parameter (or voltage parameter) of battery pack 704, battery pack 703 and battery pack 704 can be controlled to conduct the circuit through the battery cell, positive terminal switch, fuse, pre-charge circuit switch, pre-charge circuit resistor, current sensor 208, MOS charging switch, and MOS discharge switch, so that battery pack 704 is charged and the parallel power balance of the battery system is achieved.

[0195] When the difference in battery pack parameters between battery pack 703 and battery pack 704 is greater than or equal to a preset threshold, battery pack 703 is controlled to directly conduct the circuit through the battery cell, positive terminal switch, fuse, MOS charging switch, MOS discharging switch, and current sensor 208 to charge battery pack 704 and achieve parallel power balance of the battery system.

[0196] When the SOC parameter of battery pack 701 and battery pack 702 after being connected in parallel is greater than the SOC parameter of battery pack 70m and battery pack 70n after being connected in parallel, the battery cells of battery pack 701 and the battery cells of battery pack 702 are controlled to turn on the balancing circuit for discharge until the SOC parameter of battery pack 701 and battery pack 702 after being connected in parallel is consistent with the SOC parameter of battery pack 70m and battery pack 70n after being connected in parallel, thereby achieving series power balance of the battery system.

[0197] In this embodiment, by performing series balancing processing on multiple battery packs connected in series and performing parallel balancing processing on multiple battery packs connected in parallel, the flexibility of the battery balancing operation can be improved.

[0198] In one embodiment, before obtaining battery pack parameters of multiple battery packs in step S202, the method may further include obtaining battery pack parameters of multiple candidate battery packs in the connection. In response to a determination that the battery pack parameters meet a preset condition, the candidate battery pack is set to a selectable state. In response to a selection operation on a candidate battery pack, the multiple battery packs are determined to be selected candidate battery packs.

[0199] Specifically, when there are a large number of battery packs, the electronic terminal device can obtain the battery pack parameters of multiple candidate battery packs in the connection. Compare the battery pack parameters of each candidate battery pack, and when the battery pack parameters are consistent or the battery pack parameters are greater than the preset parameter threshold, determine that the battery pack parameters meet the preset conditions. In response to the judgment result that the battery pack parameters meet the preset conditions, set the candidate battery pack to a selectable state. For example, a battery pack with an actual voltage greater than 12.8V is set to a selectable state, and a battery pack with an actual voltage lower than 12.8V outputs a prompt message instructing the user to charge. For another example, a battery pack with a battery pack SOH greater than 80% is set to a selectable state, and a battery pack with an SOH less than 80% means that the battery pack is in poor health and may be set to a non-selectable state due to a safety risk in use.

[0200] like Figure 8As shown, the electronic terminal device can display the battery pack parameters of each candidate battery pack in a selectable state to the user. In response to the user's selection operation on a candidate battery pack in the selectable state, multiple battery packs for subsequent connection operations are determined to be the candidate battery packs currently selected by the user. The electronic terminal device can also display a functional interface for adding devices to the user, through which the user can actively add battery packs that have not yet established a communication connection with the electronic terminal device, thereby connecting the battery packs to the system.

[0201] In this embodiment, in response to a determination that battery pack parameters meet preset conditions, a candidate battery pack is set to a selectable state. In response to a selection operation on a candidate battery pack, multiple battery packs are determined as selected candidate battery packs. This reduces the amount of battery pack data processed by the electronic terminal device during the generation of a battery pack connection plan, thereby improving the efficiency of generating battery pack connection plans. Furthermore, since the candidate battery packs are screened using preset conditions, the battery pack parameters in the battery pack connection plan are ensured to be consistent, thereby improving the service life and safety of the battery packs.

[0202] In one embodiment, the electronic terminal device may include one or more of a mobile electronic terminal device and a display control screen. The mobile electronic terminal device may be installed with a battery system configuration program, which implements the battery system configuration method provided in the above embodiments. The display control screen may be a monitoring device with a display panel connected to the battery system, or a control module with a display panel directly integrated into the battery pack.

[0203] In the case where the electronic terminal device is a mobile electronic terminal device, each battery pack can be connected to the mobile electronic terminal device via any wireless connection method such as Bluetooth, wireless local area network or cloud server.

[0204] In the case where the electronic terminal device is a display control panel, each battery pack can be connected to the display control panel via any of a variety of methods, including Bluetooth, wireless LAN, bus (such as an isolated bus), or port (such as isolated RS485, a serial communication port). In this case, the display control panel can be directly used as the host control terminal to control multiple battery packs.

[0205] In one embodiment, a configuration method for a battery system is provided, specifically:

[0206] The electronic terminal device can obtain the battery pack parameters of multiple candidate battery packs. The battery pack parameters of each candidate battery pack are compared, and if the rated voltage of the candidate battery pack is consistent and the SOC parameter is greater than a preset parameter threshold, the candidate battery pack is set to a selectable state. Through a visual user interaction interface, the user is presented with the candidate battery packs in the selectable state, and in response to the selection operation of the candidate battery pack, the selected candidate battery pack is used as the battery pack for subsequent connection. This can avoid the problem of shortened battery pack service life caused by inconsistent rated voltage or low SOC parameters, and can also avoid operational safety risks caused by the user selecting an inappropriate battery pack for connection.

[0207] By determining at least one alternative voltage level and / or alternative charge capacity obtained by connecting multiple battery packs based on the battery pack parameters of each battery pack, and selecting the battery system requirement parameters from the alternative voltage levels and / or alternative charge capacities, the feasibility and diversity of the battery system requirement parameters can be improved.

[0208] By determining the number of battery pack series cells and the number of battery packs corresponding to the battery pack series cells based on the battery system requirement parameters and the battery pack parameters of the multiple battery packs, and determining or outputting at least one alternative connection scheme based on the number of cells and the number of battery packs corresponding to the battery pack series cells, the diversity of the alternative connection schemes can be increased.

[0209] A battery pack connection scheme is determined from at least one alternative connection scheme based on the charge capacity corresponding to the alternative connection scheme. Alternatively, at least one alternative connection scheme is directly output. In response to a user selecting the at least one alternative connection scheme, the selected alternative connection scheme is determined to be the battery pack connection scheme. This reduces the difficulty of determining the battery pack connection scheme and improves battery pack utilization.

[0210] By detecting whether the current connection mode of multiple battery packs is consistent with the connection mode in the battery pack connection solution, if the match is successful, the actual battery pack parameters corresponding to the multiple connected battery packs are obtained. If the actual battery pack parameters meet the preset conditions (for example, the actual battery pack parameters are greater than the threshold), the multiple battery packs are subjected to power balancing processing. For example, the battery pack with larger voltage parameters or SOC parameters in the parallel connection is used to charge the battery pack with smaller voltage parameters or SOC parameters. The battery cells of the battery pack with larger voltage parameters or SOC parameters in the series connection are discharged in a balanced manner. This can improve the accuracy and service life of the battery system.

[0211] It should be understood that, although the various steps in the flowcharts involved in the various embodiments described above are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the various embodiments described above may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of the steps or stages in other steps.

[0212] Based on the same inventive concept, embodiments of the present application also provide a battery system configuration device for implementing the battery system configuration method described above. The solution to the problem provided by this device is similar to the solution described in the method described above. Therefore, the specific limitations of one or more battery system configuration device embodiments provided below can be found in the limitations of the battery system configuration method described above and will not be repeated here.

[0213] In one embodiment, a configuration device for a battery system is provided, comprising: a first parameter acquisition module, a second parameter acquisition module, and a solution determination module, wherein:

[0214] The first parameter acquisition module is used to acquire battery pack parameters of multiple battery packs.

[0215] The second parameter acquisition module is configured to acquire the battery system requirement parameters in response to a first operation instruction for the battery system requirement parameters.

[0216] The scheme determination module is used to determine or output a battery pack connection scheme based on the battery pack parameters of multiple battery packs and the battery system requirement parameters. The battery pack connection scheme is used to indicate how to connect multiple battery packs to form a battery system.

[0217] Each module in the battery system configuration device described above may be implemented in whole or in part through software, hardware, or a combination thereof. Each module may be embedded in or independent of a processor in a computer device in hardware form, or may be stored in a computer device memory in software form, so that the processor can call and execute the corresponding operations of each module.

[0218] In one embodiment, a computer device is provided. The computer device may be an electronic terminal device, and its internal structure diagram may be as follows: Figure 9As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external electronic terminal device in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a method for configuring a battery system is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad provided on the computer device housing, or an external keyboard, touchpad or mouse.

[0219] Those skilled in the art will understand that Figure 9 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0220] In one embodiment, an electronic terminal device is further provided, including a memory and a processor. The memory stores a computer program, and the processor implements the steps in the above method embodiments when executing the computer program.

[0221] In one embodiment, a computer-readable storage medium is further provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0222] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0223] It should be noted that the data involved in this application (including but not limited to data used for analysis, stored data, displayed data, etc.) are all information and data fully authorized by all parties.

[0224] Those skilled in the art will appreciate that all or part of the processes in the above-described method embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the above-described method embodiments. Any reference to a memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory.

Claims

1. A method for configuring a battery system, characterized in that: The method is applied to an electronic terminal device, and the method includes: Get battery pack parameters of multiple battery packs; In response to a first operation instruction for a battery system requirement parameter, obtaining the battery system requirement parameter, wherein the battery system requirement parameter is used to represent a target performance parameter expected for a battery system after the plurality of battery packs are connected, the battery system requirement parameter including any one or more of a voltage parameter and a charge capacity parameter; determining or outputting a battery pack connection scheme based on battery pack parameters of the plurality of battery packs and the battery system requirement parameters, wherein the battery pack connection scheme is used to indicate how to connect the plurality of battery packs to form the battery system; The obtaining of the battery system requirement parameters in response to the first operation instruction for the battery system requirement parameters includes: determining, based on battery pack parameters of the plurality of battery packs, at least one alternative voltage level and / or alternative charge capacity obtained by connecting the plurality of battery packs; In response to a selection operation of at least one of the alternative voltage level and / or alternative charge capacity, determining the selected alternative voltage level and / or alternative charge capacity as the battery system requirement parameter; Before obtaining battery pack parameters of the plurality of battery packs, the method further includes: Get battery pack parameters of multiple candidate battery packs in the connection; In response to a determination that the battery pack parameters meet a preset condition, setting the candidate battery pack to a selectable state, wherein the preset condition includes that the battery pack parameters are consistent or the battery pack parameters are greater than a preset parameter threshold; In response to a selection operation on a candidate battery pack in the selectable state, the plurality of battery packs are determined to be selected candidate battery packs.

2. The method according to claim 1, characterized in that The determining or outputting a battery pack connection scheme according to the battery pack parameters of the plurality of battery packs and the battery system requirement parameters includes: determining at least one alternative connection scheme based on the battery system requirement parameters and battery pack parameters of the plurality of battery packs; Determining the battery pack connection scheme from the at least one alternative connection scheme; Output the battery pack connection scheme.

3. The method according to claim 2, characterized in that Determining the battery pack connection solution from the at least one alternative connection solution includes: determining the battery pack connection scheme from the at least one alternative connection scheme according to the charge capacity corresponding to each alternative connection scheme; or The at least one alternative connection scheme is output, and in response to a second operation instruction for the at least one alternative connection scheme, the battery pack connection scheme is determined from the at least one alternative connection scheme.

4. The method according to claim 2, characterized in that The determining of at least one alternative connection scheme according to the battery system requirement parameters and the battery pack parameters of the plurality of battery packs includes: Determining the number of battery pack series units based on the battery system requirement parameters and battery pack parameters of the plurality of battery packs, each of the battery pack series units including one battery pack or several parallel battery packs; Determining a range of the number of battery packs corresponding to the battery pack series unit according to the number of units and the number of battery packs of the plurality of battery packs; The at least one alternative connection solution is determined according to the number of units and the number range.

5. The method according to claim 4, characterized in that The determining of the at least one alternative connection scheme according to the number of units and the number range includes: When the number of the units is equal to one, any number of battery packs are selected from the plurality of battery packs for parallel connection to form the at least one alternative connection scheme; or When the number of cells is greater than one, determining grouping parameters of the battery pack according to the number range; Connecting the battery packs corresponding to the grouping parameters in parallel to form battery pack series units corresponding to the grouping parameters; The battery pack series cells corresponding to the grouping parameters are connected in series to form the at least one alternative connection scheme.

6. The method according to claim 1, characterized in that The method further comprises: In a case where there are a plurality of battery packs connected in parallel in the battery pack connection scheme, determining a voltage difference between the plurality of battery packs connected in parallel; In response to a comparison result that the voltage difference is greater than or equal to a preset voltage threshold, first prompt information is determined or output, where the first prompt information is used to instruct charging a battery pack with a smaller voltage among the multiple battery packs connected in parallel.

7. The method according to claim 1, characterized in that The method further comprises: In a case where there are a plurality of battery packs connected in series in the battery pack connection scheme, determining a difference in remaining power between the plurality of battery packs connected in series; In response to the comparison result that the remaining power difference is greater than or equal to the preset power threshold, second prompt information is determined or output, and the second prompt information is used to instruct the battery pack with the smaller remaining power among the multiple battery packs connected in series to charge.

8. The method according to claim 1, characterized in that The method further comprises: In response to signals indicating that the battery packs are connected, detecting and obtaining a current connection mode corresponding to each of the battery packs; Match the current connection mode corresponding to each battery pack with the battery pack connection scheme, and in response to the result that the battery pack connection scheme fails to match the current connection mode, determine or output a third prompt information, wherein the third prompt information is used to indicate that the current connection mode should be adjusted.

9. The method according to claim 8, characterized in that Before detecting and obtaining a current connection mode corresponding to each battery pack in response to a signal indicating that the battery packs have completed connection, the method further includes: According to the battery pack connection scheme, controlling the disconnection of working power supplies of the plurality of battery packs; The detecting and obtaining a current connection mode corresponding to each of the battery packs in response to a signal indicating that the battery packs have completed connection, includes: In response to a signal indicating that connection of the plurality of battery packs is completed, controlling the working power supplies of the plurality of battery packs to be turned on; Power-on detection is performed on the multiple battery packs after they are turned on to obtain the current connection mode corresponding to each battery pack.

10. An electronic terminal device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 9 are implemented.

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