CN115863792A

CN115863792A - Configuration method of battery system and electronic terminal equipment

Info

Publication number: CN115863792A
Application number: CN202211481203.8A
Authority: CN
Inventors: 施海驹; 黄成成
Original assignee: If New Energy Technology Jiangsu Co ltd
Current assignee: If New Energy Technology Jiangsu Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-03-28

Abstract

The application relates to a configuration method of a battery system and an electronic device. The method is applied to the electronic terminal equipment, and comprises the following steps: acquiring battery pack parameters of a plurality of battery packs; responding to a first operation instruction aiming at the battery system demand parameters, and acquiring the battery system demand parameters; and 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, wherein the battery pack connection scheme is used for indicating the plurality of battery packs to be connected to form the battery system. The method can reduce the configuration difficulty of the battery system, and is beneficial to improving the utilization rate and the service life of the battery pack.

Description

Configuration method of battery system and electronic terminal equipment

Technical Field

The present application relates to the field of new energy battery technologies, and in particular, to a configuration method of a battery system and an electronic terminal device.

Background

At present, the rated capacity and the rated voltage of a single battery pack sold on the market are fixed, and in order to meet different power consumption requirements of users, a plurality of purchased battery packs can be connected in a series connection mode and/or a parallel connection mode, so that the connected battery packs can have the rated capacity and the rated voltage required by the users. For example, the user may perform arithmetic processing on the rated voltage of a single battery pack and the rated voltage required by the user to determine the connection manner between a plurality of battery packs.

However, since the battery packs connected by the user may not be purchased in the same batch, or some battery packs are already used, there is a case that the current voltage parameter, the State of charge parameter (SOC parameter for short) and even the State of Health parameter (SOH parameter for short) of each battery pack are not consistent. In this case, if the user connects the battery packs with inconsistent parameters, the power consumption requirement of the user cannot be accurately met, and even the service life of the battery packs is easily shortened.

The foregoing description is provided for general background information and is not admitted to be prior art.

Disclosure of Invention

Therefore, it is necessary to provide an automatic battery system configuration method and an electronic terminal device for solving the above technical problems, so as to avoid the wrong connection of a user to a battery pack, reduce the configuration difficulty of the battery system, and improve the utilization rate of the battery pack in the battery system.

To this end, in one aspect of the present application, a method for configuring a battery system is provided, where the method is applied to an electronic terminal device, and the method includes:

acquiring battery pack parameters of a plurality of battery packs;

responding to a first operation instruction aiming at the battery system demand parameters, and acquiring the battery system demand parameters;

and 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, wherein the battery pack connection scheme is used for indicating the plurality of battery packs to be connected to form the battery system.

Optionally, with reference to any one of the foregoing aspects, in another implementation manner of this aspect, the acquiring a battery system requirement parameter in response to a first operation instruction for the battery system requirement parameter includes:

determining at least one alternative voltage grade and/or alternative charge capacity obtained after the plurality of battery packs are connected according to battery pack parameters of the plurality of battery packs;

in response to a selection operation of at least one of the alternative voltage levels and/or alternative charge capacities, determining the selected alternative voltage level and/or alternative charge capacity as the battery system demand parameter.

Optionally, with reference to any one of the foregoing aspects, in another implementation manner of this aspect, the determining or outputting a battery pack connection scheme according to battery pack parameters of a plurality of battery packs and the battery system requirement parameter includes:

determining at least one alternative connection scheme according to the battery system requirement parameters and the battery pack parameters of the plurality of battery packs;

determining the battery pack connection scheme from the at least one alternative connection scheme;

and outputting the battery pack connection scheme.

Optionally, with reference to any one of the foregoing aspects, in another implementation manner of this aspect, the determining the battery pack connection scheme from the at least one alternative connection scheme 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,

and outputting the at least one alternative connection scheme, and determining the battery pack connection scheme from the at least one alternative connection scheme in response to a second operation instruction of the at least one alternative connection scheme.

Optionally, with reference to any one of the foregoing aspects, in another implementation manner of this aspect, the determining at least one alternative connection scheme according to the battery system requirement parameter and battery pack parameters of a plurality of battery packs includes:

determining the unit number of battery pack series-connection units according to the battery system demand parameters and the battery pack parameters of a plurality of battery packs, wherein each battery pack series-connection unit comprises one battery pack or a plurality of parallel battery packs;

determining the number range of the battery packs corresponding to the battery pack series connection unit according to the number of the units and the number of the battery packs of the plurality of battery packs;

and determining the at least one alternative connection scheme according to the number of the units and the number range.

Optionally, with reference to any one of the foregoing aspects, in another implementation manner of this aspect, the determining, according to the number of units and the number range, the at least one alternative connection scheme includes:

under the condition that the number of the units is equal to one, selecting any number of battery packs from the plurality of battery packs to be connected in parallel to form at least one alternative connection scheme; or,

under the condition that the number of the units is greater than one, determining grouping parameters of the battery pack according to the number range;

the battery packs corresponding to the grouping parameters are connected in parallel to form battery pack series units corresponding to the grouping parameters;

and connecting the battery pack series connection units corresponding to the grouping parameters in series to form the at least one alternative connection scheme.

Optionally, with reference to any one of the above aspects, in another implementation manner of the present aspect, the method further includes:

determining a voltage difference value between a plurality of the battery packs connected in parallel in a case where there are the plurality of the battery packs connected in parallel in the battery pack connection scheme;

and determining or outputting first prompt information in response to a comparison result that the voltage difference is greater than or equal to a preset voltage threshold, wherein the first prompt information is used for indicating that a battery pack with a smaller voltage in a plurality of battery packs connected in parallel is charged.

determining a remaining capacity difference value between a plurality of the battery packs connected in series in a case where there are a plurality of the battery packs connected in series in the battery pack connection scheme;

and determining or outputting second prompt information in response to a comparison result that the residual electric quantity difference value is larger than or equal to a preset electric quantity threshold value, wherein the second prompt information is used for indicating that a battery pack with smaller residual electric quantity in a plurality of battery packs connected in series is charged.

responding to a signal of ending the connection of the plurality of battery packs, and detecting to obtain a current connection mode corresponding to each battery pack;

and matching the current connection mode corresponding to each battery pack with the battery pack connection scheme, and determining or outputting third prompt information in response to a result that the matching of the battery pack connection scheme and the current connection mode fails, wherein the third prompt information is used for indicating the adjustment of the current connection mode.

Optionally, with reference to any one of the foregoing aspects, in another implementation manner of this aspect, before the detecting, in response to a signal that a connection of a plurality of battery packs is ended, a current connection manner corresponding to each of the battery packs, the method further includes:

according to the battery pack connection scheme, the working power supplies of the plurality of battery packs are controlled to be disconnected;

the detecting and obtaining the current connection mode corresponding to each battery pack in response to the signal of the connection end of the plurality of battery packs comprises:

controlling the working power supplies of the plurality of battery packs to be conducted in response to a signal for finishing the connection of the plurality of battery packs;

and carrying out power-on detection on the plurality of battery packs after conduction to obtain the current connection mode corresponding to each battery pack.

responding to the result that the battery pack connection scheme is successfully matched with the current connection mode, and acquiring real battery pack parameters corresponding to the connected battery packs;

and under the condition that the real parameters of the battery packs meet preset conditions, carrying out electric quantity balance processing on the plurality of battery packs.

Optionally, with reference to any one of the foregoing aspects, in another implementation manner of this aspect, the performing power balance processing on the plurality of battery packs under the condition that the real parameter of the battery pack satisfies a preset condition includes:

determining a battery pack parameter difference value between a plurality of battery packs connected in parallel in the case where the plurality of battery packs connected in parallel exist in the battery pack connection scheme;

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

and controlling the battery pack with larger battery pack parameters to carry out parallel connection electric quantity balance processing on the battery pack with smaller battery pack parameters through a pre-charging circuit.

in the case where there are a plurality of the battery packs connected in series in the battery pack connection scheme, performing the following operations on the plurality of the battery packs connected in series:

and controlling the battery pack with larger battery pack parameters to perform series connection electric quantity balance processing in a discharging mode.

Optionally, with reference to any one of the above aspects, in another implementation manner of this aspect, before the obtaining battery pack parameters of a plurality of battery packs, the method further includes:

acquiring and displaying battery pack parameters of a plurality of candidate battery packs in connection;

in response to the selection operation of the candidate battery packs, determining a plurality of the battery packs as the selected candidate battery packs.

and responding to the judgment result that the battery pack parameters meet the preset conditions, and setting the candidate battery pack to be in a selectable state.

Optionally, with reference to any one of the foregoing aspects, in another implementation manner of this aspect, in a case that the electronic terminal device is a mobile electronic terminal device, each battery pack is connected to the mobile electronic terminal device through any one of bluetooth, a wireless local area network, or a cloud server;

under the condition that the electronic terminal equipment is a display control screen, each battery pack is connected with the display control screen in any one mode of Bluetooth, wireless local area network and bus communication.

under the condition that the electronic terminal equipment is mobile electronic terminal equipment, determining a host control end from the plurality of battery packs, wherein the host control end is used for controlling the plurality of battery packs;

and under the condition that the electronic terminal equipment is a display control screen, taking the display control screen as the host control end.

In another aspect of the present application, an electronic terminal device is provided, which includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the method of any one of the above aspects when executing the computer program.

In another aspect of the present application, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method of any one of the above aspects.

In another aspect of the application, a computer program product is provided, comprising a computer program which, when executed by a processor, performs the steps of the method of any of the above aspects.

As described above, the configuration method of the battery system provided by the application enables the electronic terminal device to automatically configure the battery pack connection scheme based on the battery pack parameters of each battery pack and the user demand parameters for the battery system, reduces the configuration difficulty of the battery system, improves the configuration flexibility of the battery system, and is beneficial to improving the utilization rate and the service life of the battery packs in the battery system.

The above summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. 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 disadvantages noted in the background.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.

Fig. 1 is an application environment diagram of a configuration method of a battery system according to various embodiments of the present disclosure.

Fig. 2a is a schematic flowchart of a configuration method of a battery system according to an embodiment of the present disclosure.

Fig. 2b is a schematic circuit diagram of a series connection according to an embodiment of the present disclosure.

Fig. 2c is a schematic circuit diagram of a parallel connection according to an embodiment of the present disclosure.

Fig. 2d is a schematic diagram of a battery pack connection scheme according to an embodiment of the present disclosure.

Fig. 3 is a schematic flowchart of a step of determining a battery pack connection scheme according to an embodiment of the present application.

Fig. 4a is a first flowchart illustrating an alternative connection scheme determining step provided in an embodiment of the present application.

Fig. 4b is a schematic diagram of a battery pack series unit provided in an embodiment of the present application.

Fig. 4c is a schematic diagram of an alternative connection scheme provided by an embodiment of the present application.

Fig. 5 is a flowchart illustrating a second alternative connection scheme determining step according to an embodiment of the present application.

Fig. 6 is a flowchart illustrating a connection mode detection step according to an embodiment of the present application.

Fig. 7 is a circuit diagram illustrating a power balancing processing step according to an embodiment of the present disclosure.

Fig. 8 is a display interface diagram of an electronic terminal device according to an embodiment of the present application.

FIG. 9 is a diagram illustrating an internal structure of a computer device according to an embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not 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.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the recitation of a claim "comprising a" 8230a "\8230means" does not exclude the presence of additional identical elements in the process, method, article or apparatus in which the element is incorporated, and further, similarly named components, features, elements in different embodiments of the application may have the same meaning or may have different meanings, the specific meaning of which should be determined by its interpretation in the specific embodiment or by further combination with the context of the specific embodiment.

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 only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at" \8230; "or" when 8230; \8230; "or" in response to a determination ", depending on the context. Also, 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 will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof. The terms "or," "and/or," "including at least one of the following," and the like, as used herein, are to be construed as inclusive or mean any one or any combination. An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.

It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, in different orders, and may be performed alternately or at least partially with respect to other steps or sub-steps of other steps.

The words "if", as used herein, may be interpreted as "at \8230; \8230when" or "when 8230; \823030, when" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (a stated condition or event)" may be interpreted as "upon determining" or "in response to determining" or "upon detecting (a stated condition or event)" or "in response to detecting (a stated condition or event)", depending on the context.

It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The configuration method of the battery system provided in the embodiment of the present application may be applied to an application environment as shown in fig. 1, where the electronic terminal device 102 and the battery pack 104 may communicate in any one of multiple communication manners, such as bluetooth, wireless local area network, or bus.

Specifically, during configuration of the battery system, a user may obtain battery pack parameters of the plurality of battery packs 104 through the electronic terminal device 102. The battery system requirement parameters are operated on an operation interface of the electronic terminal device 102, and the electronic terminal device 102 is triggered to respond to a first operation instruction aiming at the battery system requirement parameters to obtain the battery system requirement parameters determined by a user. The electronic terminal device 102 determines or outputs a battery pack connection scheme among the plurality of battery packs 104 meeting the battery system requirement parameters according to the battery pack parameters of the plurality of battery packs 104 and the battery system requirement parameters, so as to instruct a user to connect the plurality of battery packs 104 in the battery pack connection scheme according to a connection mode in the battery pack connection scheme to form a corresponding battery system.

The electronic terminal device 102 may be, but not limited to, various personal computers, notebook computers, smart phones, tablet computers, internet of things devices, and portable wearable devices, and the internet of things devices may be smart energy monitoring devices, smart televisions, smart vehicle-mounted devices, and the like. The portable wearable device can be a smart watch, a smart bracelet, a head-mounted device, and the like.

The battery pack 104 may be a battery pack with a communication function, and the number of the battery packs 104 may be set according to the requirements of an actual application scenario.

In one embodiment, as shown in fig. 2a, a configuration method of a battery system is provided, which is described by taking the method as an example applied to the electronic terminal device 102 in fig. 1, and includes the following steps:

in step S202, battery pack parameters of a plurality of battery packs are acquired.

The battery pack parameter may include, but is not limited to, any one or more of remaining power of the battery pack, voltage of the battery pack, rated capacity of the battery pack, state of charge (State of charge, SOC parameter for short), or State of Health (State of Health, SOH parameter for short), and the like.

Specifically, in a case where there is a physical connection (for example, a connection implemented by a bus, a port, or a communication line) between the electronic terminal device and the battery pack, the electronic terminal device may determine the battery pack to be communicated directly through the physical connection, and obtain the battery pack parameters from the battery pack. In this case, since the stability of the physical connection is high, the communication interference between the electronic terminal device and the battery pack can be reduced, and the stability of the communication between the electronic terminal device and the battery pack can be improved.

In the case that there is a wireless connection (for example, a connection implemented in a wireless lan, bluetooth, or the like) between the electronic terminal device and the battery pack, the electronic terminal device may acquire the battery pack parameters of the plurality of battery packs within the wireless communication range through the wireless connection. At this moment, because physical connection does not exist, the flexibility of deployment of the electronic terminal device and the battery pack can be improved, the communication range between the electronic terminal device and the battery pack is expanded, and a user can remotely acquire the battery pack parameters of the battery pack and perform corresponding operation.

Step S204, responding to a first operation instruction aiming at the battery system requirement parameters, and acquiring the battery system requirement parameters.

The battery system requirement parameters may be used to characterize target performance parameters expected for the battery system after the connection of the plurality of battery packs, and the battery system requirement parameters may include, but are not limited to, any one or more of a plurality of battery system parameters such as a voltage parameter, a charge capacity parameter, and the like.

Specifically, the electronic terminal device may respond to a first operation instruction for the battery system requirement parameter triggered by a user, and acquire the battery system requirement parameter corresponding to the first operation instruction. For example, in the case where the electronic terminal device is disposed with an input device, the electronic terminal device may receive the battery system requirement parameter input by the user through the input device. Under the condition that the electronic terminal equipment is provided with the display device, the electronic terminal equipment can display a plurality of battery system parameters to be selected to a user through the display device, receive the battery system parameters selected by the user through the display device, and take the battery system parameters as battery system requirement parameters. As another possible implementation manner, the electronic terminal device may further receive a battery system parameter input by the user, determine whether the battery system parameter input by the user is reasonable according to the acquired battery pack parameter of the battery pack, and when it is determined that the battery system parameter input by the user is reasonable, take the battery system parameter input by the user as the battery system requirement parameter. And if the judgment result is unreasonable, outputting prompt information. The electronic terminal device may determine that the battery system requirement parameters input by the user are reasonable under the condition that the plurality of battery packs can be combined (connected in series and in parallel) to obtain the battery system meeting the battery system requirement parameters input by the user.

Step S206, 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.

Wherein the battery pack connection scheme may be used to instruct a user to connect the plurality of battery packs to form the battery system.

Specifically, the electronic terminal device may perform operation processing on the battery pack parameters and the battery system requirement parameters according to the battery pack series-parallel characteristic principle, so as to determine or output a battery pack connection scheme that satisfies the battery system requirement parameters. In particular, when at least two battery packs are connected in parallel, the rated output voltage of the battery system is formed to be substantially equal to the rated voltage of each battery pack (ignoring a 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 formed 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 value of the rated capacities of the respective battery packs of the at least two battery packs. Based on the characteristics, the electronic terminal equipment can automatically determine the battery pack connection scheme meeting the requirement parameters of the battery system, and can also output the battery pack connection scheme to a user in a man-machine interaction mode, wherein the man-machine interaction mode comprises modes of displaying the battery pack connection scheme through a display panel of the electronic terminal equipment or broadcasting the battery pack connection scheme through a loudspeaker of the electronic terminal equipment in a voice mode and the like.

Illustratively, the battery pack parameters of the plurality of battery packs acquired by the electronic terminal device include a rated voltage parameter, wherein the rated voltage parameter of each battery pack is 12V (Volt). In the case where the battery system requirement parameter is 48V, it may be determined that the connection scheme satisfying the battery system requirement parameter is a scheme in which 4 battery packs are connected in series. At this time, the battery system requirement parameter is equal to the battery pack parameter corresponding to the series connection scheme, 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 may display a dynamic GUI (Graphical User Interface) Interface, which shows the number of each battery pack and the corresponding connection manner of the battery packs, for example, the 1#, 2#, 3# and 4# battery packs are connected in series in sequence.

In one example, as shown in fig. 2b, a schematic of a circuit for connecting a plurality of battery packs in series is provided. Each battery pack includes a battery management system 202 (BMS), a voltage measurement circuit 204, an isolation communication module 206, and a current sensor 208.

In another example, as shown in fig. 2c, a schematic of a circuit for connecting multiple battery packs in parallel is provided. Each battery pack includes, among other things, a battery management system 202, a voltage measurement circuit 204, an isolated communication component 206, and a current sensor 208.

In another example, as shown in fig. 2d, after determining the battery pack connection scheme, the electronic terminal device may generate a specific connection step corresponding to the battery pack connection scheme, and push the specific connection step and the battery pack connection scheme to a user through a user interface, where fig. 2d shows that 8 battery packs 2 and 4 strings form a connection scheme of the battery system.

According to the configuration method of the battery system, the battery pack parameters of the battery packs are obtained, the first operation instruction aiming at the battery system requirement parameters is responded, the battery system requirement parameters are obtained, the battery pack connection scheme is determined or output according to the battery pack parameters of the battery packs and the battery system requirement parameters, the battery pack connection scheme is used for indicating the battery packs to be connected to form the battery system, and the corresponding battery pack connection scheme can be automatically configured according to the battery pack parameters of the battery packs and the requirement parameters of a user on the battery system, so that the configuration difficulty of the battery system is reduced, the configuration flexibility of the battery system is improved, and meanwhile, the utilization rate and the service life of the battery packs in the battery system are improved.

In one embodiment, step S204, in response to the first operation instruction for the battery system requirement parameter, acquiring the battery system requirement parameter includes: determining at least one alternative voltage grade and/or alternative charge capacity obtained after the plurality of battery packs are connected according to the battery pack parameters of the plurality of battery packs; in response to a selection operation of at least one alternative voltage level and/or alternative charge capacity, the selected alternative voltage level and/or alternative charge capacity is determined as a battery system demand parameter.

Specifically, the electronic terminal device may process voltage parameters of a plurality of battery packs, and determine an alternative voltage level of the battery system obtained after connection of at least one battery pack; the voltage parameter of the battery pack referred to herein refers to a rated voltage of the battery pack. For example, the electronic terminal device may use the voltage parameter of a single battery pack as the candidate voltage level obtained by connecting a plurality of battery packs in parallel, or the electronic terminal device may add the voltage parameters of a single battery pack, use the voltage parameter obtained by each addition as a new candidate voltage level until obtaining the sum of the voltage parameters of a plurality of battery packs, and use the sum of the voltage parameters of a plurality of battery packs as the candidate voltage level obtained by connecting a plurality of battery packs in series. For example, in the case where the voltage parameter of a single battery pack is 12V, the electronic terminal device may determine that the alternative voltage levels obtained after connection via 4 battery packs include, but are not limited to, at least one of 12V, 24V, 36V, or 48V.

Alternatively, the electronic terminal device may process the charge capacities of a plurality of battery packs and determine the candidate charge capacity of the battery system obtained after connection through at least one battery pack, where the charge capacity of a battery pack as referred to herein refers to the rated charge capacity of the battery pack. For example, in the case where the charge capacity of a single battery pack is 100Ah, the electronic terminal device may determine that the candidate charge capacities obtained by connecting through 4 battery packs include, but are not limited to, at least one of 100Ah, 200Ah, 300Ah, and 400 Ah. The determination of the specific alternative charge capacity may be implemented with reference to the determination method of the alternative voltage level described above, and is not specifically described herein.

Or, the electronic terminal device may process the voltage parameters and the charge capacities of the plurality of battery packs, and determine an alternative voltage level and an alternative charge capacity of the battery system obtained after connection through at least one battery pack. For example, in the case that the voltage parameter of a single battery pack is 12V/100Ah, the electronic terminal device may determine that the candidate battery system parameters obtained after connection via 4 battery packs include, but are not limited to, at least one of 12V/400Ah (parallel connection of 4 battery packs), 24V/200Ah (2 parallel-to-2 series connection), 36V/100Ah (series connection of only 3 battery packs, not used by another battery pack), or 48V/100Ah (series connection of 4 battery packs).

Further, the determined at least one alternative voltage level and/or alternative charge capacity obtained after connection of the plurality of battery packs is displayed to a user on an interactive interface of the electronic terminal device. And in response to the selection operation of at least one alternative voltage level and/or alternative charge capacity by the user, determining the selected alternative voltage level and/or alternative charge capacity as the battery system demand parameter.

In this embodiment, at least one alternative voltage level and/or alternative charge capacity obtained after the connection of the plurality of battery packs may be determined according to the battery pack parameters of the plurality of battery packs, and each alternative voltage level and/or alternative charge capacity represents a parameter characteristic of a battery system obtained by the series-parallel connection of the plurality of battery packs. The electronic terminal equipment can display the obtained alternative voltage grade and/or alternative charge capacity on a display screen for a user to select, and the user can select a target alternative voltage grade and/or alternative charge capacity through selection operation according to factors such as load power consumption requirements and voltage grade requirements in a power system; the selection operation may be a click, a drag, a tap, or the like operation of the user on a display screen with a touch function, or may be a selection instruction input by the user through a voice function. In response to a user-triggered selection operation, the electronic terminal device may use the alternative voltage level and/or the alternative charge capacity selected by the user as the battery system demand parameter. Through the interaction mode, the electronic terminal equipment can automatically determine one or more optional battery pack connection schemes for a user to select, the realizability of the battery system requirement parameters is improved, the situation that the user blindly determines the battery pack requirement parameters to cause that the user requirements cannot be met according to the existing multiple battery packs is avoided, and the subsequent determination or output of the corresponding battery pack connection schemes based on the battery system requirement parameters is facilitated. In addition, by adopting the method provided by the embodiment, the battery system requirement parameters can be acquired only by the user executing the selection operation, and the portability of the interaction between the electronic terminal equipment and the user can be improved, so that the acquisition efficiency of the battery system requirement parameters is improved.

In an alternative embodiment, as shown in fig. 3, in step S206, determining or outputting a battery pack connection scheme according to battery pack parameters of a plurality of battery packs and battery system requirement parameters includes:

step S302, at least one alternative connection scheme is determined according to the battery system requirement parameters and the battery pack parameters of the plurality of battery packs.

Specifically, after the electronic terminal device obtains battery pack parameters of a plurality of battery packs and battery system requirement parameters, at least one alternative connection scheme may be determined for a user to select, where the alternative connection scheme is a battery pack connection scheme in which the plurality of battery packs can meet the battery system requirement parameters after being connected in series and in parallel. For example, when the battery system requirement parameter includes a voltage level, it may be determined how many battery packs are required to be connected in series to meet the voltage level requirement according to the voltage level and the voltage parameter of each battery pack, and then at least one alternative connection scheme may be determined according to 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 may be directly taken as an alternative connection scheme. If the data volume of the battery packs to be connected is m and m is larger than n, then each battery pack can be connected in parallel on the basis of the serial connection scheme, so that a plurality of alternative connection schemes are obtained. Preferably, the number of each battery pack connected in parallel needs to be the same, that is, when the data volume m of the battery packs to be connected is less than 2n, only n battery packs can be directly connected in series as an alternative connection scheme; when the data volume 2n of the battery packs to be connected is not more than m <3n, two different alternative connection schemes formed by directly connecting n battery packs in series and connecting 2n battery packs in parallel by using 2n battery packs can be output; when the data volume 3n of the battery packs to be connected is not less than m <4n, two different alternative connection schemes formed by directly connecting n battery packs in series, 2n battery packs in parallel and n in series, and three different alternative connection schemes formed by 3n battery packs in parallel and n in series can be output, and the like.

Step S304, a battery pack connection scheme is determined from at least one alternative connection scheme.

And step S306, outputting the battery pack connection scheme.

Specifically, in the case that the alternative connection scheme is one, the alternative connection scheme may be directly used as a battery pack connection scheme and output to instruct a user to perform corresponding series-parallel connection on a plurality of battery packs according to the battery pack connection scheme to form a battery system. When the number of the alternative connection schemes is multiple, the battery pack connection scheme can be determined from at least one alternative connection scheme and output according to the battery pack parameters of the battery pack in each alternative connection scheme. Or, according to the number of the wire harnesses in each alternative connection scheme, a connection scheme with a small number of wire harnesses, that is, a simple battery pack connection scheme is deployed and output from at least one alternative connection scheme. Or, according to the charge capacity of each alternative connection scheme, the battery pack connection scheme with the maximum charge capacity is determined from at least one alternative connection scheme. Or, the battery pack connection scheme desired by the user can be selected from at least one alternative connection scheme by the selection operation of the user and output.

Optionally, the electronic terminal device may also record the output battery pack connection scheme. When the battery system is reconfigured, the recorded battery pack connection scheme may be directly presented to the user.

In this embodiment, at least one alternative connection scheme is determined according to the battery system requirement parameters and the battery pack parameters of the plurality of battery packs; determining a battery pack connection scheme from at least one alternative connection scheme; the battery pack connection scheme is output, and the flexibility and the diversity of the battery pack connection scheme can be improved.

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 according to the charge capacity corresponding to each alternative connection scheme; or outputting at least one alternative connection scheme, and determining the battery pack connection scheme from the at least one alternative connection scheme in response to a second operation instruction of the at least one alternative connection scheme.

Specifically, the electronic terminal device may process the rated charge capacity of each battery pack in each alternative connection scheme, and determine the rated charge capacity of each alternative connection scheme according to the series-parallel connection characteristics of the battery packs. The rated charge capacities of the alternative connection schemes are compared, and a battery pack connection scheme is determined from at least one alternative connection scheme based on the comparison result, for example, the alternative connection scheme with the maximum rated charge capacity is used as the battery pack connection scheme.

Or, the electronic terminal device may directly output the at least one alternative connection scheme, determine, in response to a second operation instruction, such as a selection instruction, of the user on the at least one alternative connection scheme, the alternative connection scheme selected by the user from the at least one alternative connection scheme, and use the alternative connection scheme selected by the user as the battery pack connection scheme.

In an example, the electronic terminal device may also output the corresponding alternative connection schemes according to the sorting order for the user to select after sorting the multiple alternative connection schemes based on the rated charge capacity of each alternative connection scheme.

In this embodiment, the battery pack connection scheme is determined from at least one alternative connection scheme according to the rated charge capacity of the battery pack in the alternative connection scheme, so that the rated charge capacity of the battery pack connection scheme can be improved, and the cruising ability of a battery system formed based on the battery pack connection scheme subsequently can be improved.

In one embodiment, as shown in fig. 4a, step S302, determining at least one alternative connection scheme according to the battery system requirement parameter and the battery pack parameters of the plurality of battery packs, includes:

step S402, determining the unit number of the battery pack series connection units according to the battery system requirement parameters and the battery pack parameters of the plurality of battery packs.

In one example, as shown in fig. 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 of the battery pack series units 400 is connected in series.

Specifically, the electronic terminal device may process a battery system requirement parameter and battery pack parameters of a plurality of battery packs, and determine the number of cells of the battery pack series connection unit based on a quantity relationship between the battery system requirement parameter and the battery pack parameters.

For example, in the case where the battery system requirement parameter includes a rated voltage of 48V, if the rated voltage of the battery pack is 12V, there is a multiple relationship between the battery system requirement parameter and the battery pack parameter, and it may be determined that the number of cells of the series unit of the battery pack is 4. If the rated voltage of the battery pack is 22V, the quantity relation between the battery system demand parameters and the battery pack parameters can be rounded up, and the number of the series-connected battery pack units is determined to be 2.

And step S404, determining the number range of the battery packs corresponding to the battery pack series connection unit according to the number of the units and the number of the battery packs of a plurality of battery packs.

Specifically, in the case where the number of cells is equal to the number of battery packs of the plurality of battery packs, it may be determined that the battery pack corresponding to the battery pack series unit is 1. In the case that the number of cells is smaller than the number of battery packs of the plurality of battery packs, the electronic terminal device may determine the number range of the battery packs corresponding to the battery pack series connection unit according to the number relationship between the number of cells of the battery pack series connection unit and the number of battery packs of the plurality of battery packs. For example, a quotient of the number of battery packs of the plurality of battery packs and the number of cells of the battery pack series unit may be obtained, the quotient may be rounded, the rounded value may be used as an upper threshold value of the number of battery packs in the battery pack series unit, 1 may be used as a lower threshold value of the number of battery packs, and 1 may be sequentially added to obtain the number range of battery packs.

Step S406, determining at least one alternative connection scheme according to the number of the units and the number range.

Specifically, the electronic terminal device may traverse each value in the number range to obtain a battery pack series unit corresponding to each value. And for the battery pack series connection unit corresponding to each numerical value, determining the alternative connection scheme corresponding to each numerical value according to the battery pack series connection unit and the unit number of the battery pack series connection unit, so as to obtain at least one alternative connection scheme.

In one example, the number of battery packs acquired by the electronic terminal device is 8, and the number of cells of the battery pack series unit determined according to the battery system requirement parameter is 3. At this time, the number of the battery packs corresponding to the battery pack series unit can be determined to be in a range of 1-2 according to the number of the units and the number of the battery packs. As shown in fig. 4c, the electronic terminal device may connect the battery packs 402 in parallel according to the number of the battery packs 402 to form the corresponding battery pack series unit 400, for example, form the battery pack series unit 400 corresponding to 1 battery pack 402, or form the battery pack series unit 400 corresponding to 2 battery packs. Thus, the battery pack series units 400 are connected in series to form an alternative connection a (three battery packs 402 are connected in series) or an alternative connection b (two battery packs 402 are connected in parallel and three battery pack series units 400 formed in parallel are connected in series).

In this embodiment, the number of the cells of the series-connected cells of the battery pack is determined according to the demand parameters of the battery system and the battery pack parameters of the plurality of battery packs, the number range of the battery packs in each series-connected cell of the battery pack is determined based on the number of the cells, and at least one alternative connection scheme is determined according to the number range of the battery packs and the number of the cells of the series-connected cells of the battery pack, so that the diversity of the alternative connection schemes can be improved.

In one embodiment, as shown in fig. 5, step S406, determining at least one alternative connection scheme according to the number of units and the number range, includes:

in step S502, it is determined whether the number of cells is greater than one.

Specifically, the electronic terminal device may determine whether the number of cells is greater than one after determining the number of cells of the battery pack series unit. In the case where the number of cells is equal to one, step S504 may be performed; in the case where the number of cells is greater than one, step S506 and the subsequent steps thereof may be performed.

Step S504, a plurality of battery packs are selected from the plurality of battery packs to be connected in parallel, and at least one alternative connection scheme is formed.

Specifically, the series unit formed of a plurality of battery packs has only one, which means that all the battery packs should form a battery system in a single battery pack or in parallel with several battery packs. Therefore, any number of battery packs can be selected from the plurality of battery packs and connected in parallel to form the alternative connection scheme, and the any number refers to an integer which is greater than or equal to 1 and less than or equal to the number of all the battery packs.

Step S506, grouping parameters of the battery packs are determined according to the quantity range.

And determining grouping parameters of the battery packs according to the number range of the battery packs corresponding to the battery pack serial units. For example, when the number of battery packs ranges from 1 to Y (Y is an integer greater than 1), any one of values 1 to Y may be used as the grouping parameter of the battery packs.

Step S508, the battery packs corresponding to the grouping parameters are connected in parallel to form a battery pack series unit corresponding to the grouping parameters.

And step S510, connecting the battery pack series-connection units corresponding to the grouping parameters in series to form at least one alternative connection scheme.

Specifically, the electronic terminal device may connect battery packs having the same grouping parameter in parallel to form a battery pack series unit corresponding to the grouping parameter. For example, when the grouping parameter of the battery packs is Y, the battery pack series units corresponding to the grouping parameter Y may be formed by connecting Y battery packs in parallel.

And connecting the battery pack series units with the number of the units corresponding to the grouping parameters in series to form at least one alternative connection scheme. For example, in the case that the grouping parameter is Y and the number of cells is M, the electronic terminal device may perform a battery system connection manner in which M battery pack series units corresponding to the grouping parameter Y are connected in series to form Y parallel M series, so as to form at least one alternative connection scheme meeting the battery system requirement parameter.

In this embodiment, the alternative connection scheme generation method under different scenes is determined based on the number of cells of the battery pack series connection units, when the number of cells is one, any number of battery packs are directly selected from the plurality of battery packs to be connected in parallel, so as to form at least one alternative connection scheme, and when the number of cells is greater than one, the battery pack series connection units corresponding to the battery pack grouping parameters are determined according to the number range of the battery packs, so that the battery pack series connection units with the number of cells are connected, so as to form a corresponding alternative connection scheme, thereby simplifying the generation steps of the alternative connection scheme, improving the generation efficiency of the alternative connection scheme, expanding the application scenes of the alternative connection scheme, and improving the diversity of the alternative connection scheme.

In one embodiment, the electronic terminal device may further obtain a battery pack parameter corresponding to each alternative connection scheme. And sequencing the multiple alternative connection schemes based on the battery pack parameters, and outputting the sequenced multiple alternative connection schemes and the battery pack parameters of each alternative connection scheme to a user, or directly outputting the alternative connection scheme with the maximum battery pack parameters as the battery pack connection scheme.

Specifically, the electronic terminal device may process the rated capacity and the state of health parameter of each battery pack, and take the product of the rated capacity and the state of health parameter as the current theoretical capacity of each battery pack. And processing the current theoretical capacity of each battery pack in the battery pack series unit, and taking the sum of the current theoretical capacities as the current theoretical capacity of the battery pack series unit.

And comparing the current theoretical capacity of each battery pack series unit in each alternative connection scheme aiming at each alternative connection scheme, and taking the current theoretical capacity with the minimum value as the theoretical capacity of the alternative connection scheme. The plurality of alternative connection schemes are ordered based on theoretical capacity.

In one example, there are 10 battery packs with serial numbers ID 1-ID 10, and the theoretical capacity of each battery pack is CAP 1-CAP 10, and CAP1 ≧ CAP2 ≧ CAP3 \8230 ≧ 8230 ≧ CAP10.

In the case where the number of cells of the battery pack series unit is 4, and the number of battery packs in each battery pack series unit is 2, to form an alternative connection scheme with the largest theoretical capacity, the electronic terminal device may acquire 8 battery packs (i.e., battery packs ID1 to ID 8) with the larger theoretical capacity, and connect the battery pack ID1 with the largest theoretical capacity in parallel with the battery pack ID8 with the smallest theoretical capacity to form the battery pack series unit 1. Similarly, the battery pack ID2 having a large theoretical capacity and the battery pack ID7 having a small theoretical capacity may be connected in parallel to form the battery pack series unit 2. The ID3 with the larger theoretical capacity and the ID6 with the smaller theoretical capacity may be connected in parallel to form the battery pack series unit 3. The ID4 having a larger theoretical capacity and the IDn-1 having a smaller theoretical capacity may be connected in parallel to form the battery pack series unit 4.

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

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, the battery pack parameters are sorted according to the numerical values of the battery pack parameters, and the sorted alternative connection schemes are determined or output, so that the battery pack parameters of the alternative connection schemes can be visually displayed to a user, and the user can select the required battery pack connection schemes based on the battery pack parameters.

In one embodiment, there is also provided a configuration method of a battery system, including: in the case where there are a plurality of battery packs connected in parallel in the battery pack connection scheme, a voltage difference value between the plurality of battery packs connected in parallel is determined. And determining or outputting first prompt information in response to the comparison result that the voltage difference value is greater than or equal to the preset voltage threshold value.

Particularly, the voltage of each battery pack is different due to the possibility that the residual electric quantity, the service life, the specification parameters and the like of the plurality of battery packs are different, and when the voltage difference between each battery pack is small, the battery packs can be directly connected in parallel; however, when the voltage difference between the battery packs exceeds a certain value, the battery packs connected in parallel directly generate a large current circulation, which may directly burn the battery packs, and a user has a large safety risk in the process of connecting the battery packs. Therefore, in particular, the electronic terminal device may acquire the voltage parameter of each battery pack connected in parallel in a case where it is determined that there are a plurality of battery packs connected in parallel in the battery pack connection scheme. And processing the voltage parameters of the plurality of battery packs connected in parallel and determining the voltage difference value between the plurality of battery packs connected in parallel. And comparing the voltage difference value with a preset voltage threshold, and under the condition that the voltage difference value is greater than or equal to the preset voltage threshold, determining or outputting first prompt information in response to the comparison result that the voltage difference value is greater than or equal to the preset voltage threshold so as to instruct a user to charge a battery pack with a smaller voltage in the plurality of battery packs connected in parallel.

The first prompt message may be used to instruct charging of a battery pack with a lower voltage among the plurality of battery packs connected in parallel. In a specific implementation manner, a plurality of interface components (such as battery pack icons) can be displayed in a display interface of the electronic terminal device, and each interface component corresponds to each battery pack one to one. The first prompt message can be realized by changing an interface component corresponding to the battery pack to be charged in the display interface of the electronic terminal device, such as controlling the interface component to flash, setting gray (i.e. changing from a color state to a gray state), outputting the prompt message through a pop-up window, and the like.

In this embodiment, the voltages of the plurality of battery packs that need to be connected in parallel are compared to determine a voltage difference value, and when the voltage difference value is smaller than a preset voltage threshold, it is determined or output that the first prompt message instructs the user to charge the battery pack with the smaller voltage among the plurality of battery packs connected in parallel, and after the charging is completed, the prompt message (for example, the fourth prompt message, the prompt mode is the same as the first prompt message) may be output again to instruct the user that the current battery pack meets the parallel requirement. Therefore, the user does not need to measure the voltage of each battery pack or actually connect the battery packs, the safety risk caused by overlarge voltage difference of a plurality of battery packs connected in parallel in the battery pack connection scheme can be avoided, and the service life of the battery packs and the safety in the using process are effectively improved.

In one embodiment, there is also provided a configuration method of a battery system, including: in the case where there are a plurality of battery packs connected in series in the battery pack connection scheme, a remaining power difference value between the plurality of battery packs connected in series is determined. And determining or outputting second prompt information in response to the comparison result that the residual electric quantity difference value is larger than or equal to the preset electric quantity threshold value.

The second prompt message may be used to instruct charging of a battery pack with a smaller remaining amount of the plurality of battery packs connected in series. The specific implementation operation of the second prompt message may be implemented by referring to the implementation method of the first prompt message provided in the above embodiments, and is not specifically described herein.

Specifically, the electronic terminal device may acquire the remaining capacity parameter of each battery pack connected in series, in a case where it is determined that there are a plurality of battery packs connected in series in the battery pack connection scheme. And processing the residual electric quantity parameters of every two battery packs connected in series to determine the residual electric quantity difference value between the plurality of battery packs connected in series.

And comparing the residual electric quantity difference value with a preset electric quantity threshold value, and under the condition that the residual electric quantity difference value is greater than or equal to the preset electric quantity threshold value, determining or outputting second prompt information in response to the comparison result that the residual electric quantity difference value is greater than or equal to the preset electric quantity threshold value so as to instruct a user to charge a battery pack with smaller residual electric quantity in the plurality of battery packs connected in series.

And under the condition that the residual electric quantity difference value is smaller than the preset electric quantity threshold value, prompting a user to directly connect the battery pack, or not carrying out any treatment.

In this embodiment, through the residual capacity of a plurality of battery package of comparison series connection, confirm the residual capacity difference, under the condition that the residual capacity parameter is less than predetermineeing the electric quantity threshold value, confirm or output second prompt information instructs the user to charge to the battery package that the residual capacity is less in a plurality of battery packages of series connection, can avoid a plurality of battery package residual capacity differences of series connection in the battery package connection scheme too big to improve battery package's life and security.

In one embodiment, as shown in fig. 6, there is also provided a configuration method of a battery system, including:

and step S602, controlling the working power supplies of the plurality of battery packs to be disconnected according to the battery pack connection scheme.

Specifically, the electronic terminal device may determine that the user finishes checking the battery pack connection scheme after the battery pack connection scheme is displayed to the user for a preset time period, or after the user exits from the battery pack connection scheme display interface. According to the battery packs connected in the battery pack connection scheme, control information is sent to the corresponding battery packs through communication connection established between the electronic terminal equipment and the battery packs, and the working power supplies of the corresponding battery packs are controlled to be disconnected, so that the operation safety of the battery packs in the subsequent connection process is ensured.

And step S604, responding to the signal of the connection end of the plurality of battery packs, and controlling the working power supplies of the plurality of battery packs to be conducted.

Step S606, performing power-on detection on the plurality of battery packs after being conducted, and obtaining a current connection mode corresponding to each battery pack.

Specifically, the electronic terminal device may control the operation power supplies of the plurality of connected battery packs to be turned on in response to a signal indicating that the connection of the plurality of battery packs is completed. And carrying out power-on detection on the plurality of battery packs after conduction, and sequentially measuring the bus voltage in the battery system. And based on the voltage parameter of each battery pack obtained by power-on detection, further determining the current connection mode corresponding to 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 specification of which is incorporated herein by reference.

Step S608, matching the current connection mode corresponding to each battery pack with the battery pack connection scheme.

Specifically, the electronic terminal device may match the current connection mode corresponding to each battery pack with the connection mode in the battery pack connection scheme. In case it is determined that the connection manners are not consistent, step S610 may be performed. If it is determined that the connection methods are consistent, steps S612 to S614 may be performed.

Step S610, determining or outputting a third prompt message in response to the result of the failure of matching the battery pack connection scheme with the current connection mode.

And the third prompt message is used for indicating the adjustment of the current connection mode.

Specifically, the electronic terminal device may determine or output the third prompt information in response to a result of failure in matching the battery pack connection scheme with the current connection mode when it is determined that the connection modes are inconsistent, so as to instruct the user to adjust the current connection mode. In one example, if the electronic terminal device determines that one or more battery packs of the plurality of battery packs are connected incorrectly, an alarm can be given by outputting a third prompt message. If the electronic terminal device determines that the connection mode of the battery pack does not accord with the connection scheme of the battery pack, the electronic terminal device can prompt through third prompt information.

Step S612, in response to a result that the battery pack connection scheme is successfully matched with the current connection mode, obtaining real parameters of the battery packs corresponding to the connected plurality of battery packs.

And step S614, carrying out electric quantity balance processing on the plurality of battery packs under the condition that the real parameters of the battery packs meet the preset conditions.

The real parameters of the battery pack can be used for representing any one or more of various battery pack parameters such as the current actual voltage, current, residual capacity, charge capacity, SOH parameters or SOC parameters of the battery pack.

Specifically, the electronic terminal device may obtain, in response to a result of successful matching between the battery pack connection scheme and the current connection mode, battery pack real parameters corresponding to the plurality of battery packs obtained through power-on detection when it is determined that the connection modes are consistent. And performing operation processing on the real parameters of the battery pack of each battery pack to determine the total voltage and the total capacity corresponding to the current battery system. And controlling the charging or discharging of the battery pack in the battery system according to the total voltage and the total capacity corresponding to the current battery system so as to realize the electric quantity balance processing of the battery pack in the battery system.

In this embodiment, after the user checks the battery pack connection scheme, the working power supplies of the plurality of battery packs are automatically controlled to be disconnected, the working power supplies of the plurality of battery packs are controlled to be connected in response to a signal that the user finishes connecting the plurality of battery packs, the current connection mode of each battery pack is determined in a power-on detection mode, the safety of battery pack connection operation can be improved, and meanwhile, the detection accuracy of the current connection mode can also be improved. Through matching the current connection mode and the battery pack connection scheme, the user is prompted by the third prompt message to adjust when the matching is inconsistent, and when the matching is consistent, the electric quantity balance processing is performed according to the real parameters of the battery pack, so that the connection accuracy of the battery pack can be improved, and the service life of the battery pack after connection is prolonged.

In one embodiment, in step S614, in the case that the real parameters of the battery packs meet the preset conditions, the power balancing process is performed on the plurality of battery packs, and the process includes: in the case where there are a plurality of battery packs connected in parallel in the battery pack connection scheme, parallel power balance processing is performed.

Specifically, the electronic terminal device may obtain battery pack parameters of a plurality of battery packs connected in parallel, and determine a battery pack parameter difference between the plurality of battery packs connected in parallel. Comparing the parameter difference value of the battery pack with a preset threshold value, and responding to the comparison result that the parameter difference value of the battery pack is larger than or equal to the preset threshold value, and executing the following operations on the plurality of battery packs connected in parallel:

the method comprises the steps of controlling a pre-charging circuit of a battery pack with higher battery pack parameters (SOC parameters or voltage parameters) to be opened, and charging the battery pack with lower battery pack parameters (SOC parameters or voltage parameters) through the pre-charging circuit until a plurality of charged battery packs connected in parallel achieve parallel electric quantity balance.

In one example, the electronic terminal device may also directly control, in response to a comparison result that the battery pack parameter difference is smaller than the preset threshold, a battery pack with a higher battery pack parameter (SOC parameter or voltage parameter) among the plurality of battery packs connected in parallel to charge a battery pack with a lower battery pack parameter (SOC parameter or voltage parameter) until the plurality of battery packs connected in parallel after charging reach a parallel electric quantity balance.

In this embodiment, by determining the parameter difference of the battery packs among the plurality of battery packs connected in parallel, when the parameter difference of the battery packs is greater than or equal to the preset threshold, the battery pack with the larger parameter of the battery pack is controlled to perform parallel electric quantity balance processing on the battery pack with the smaller parameter of the battery pack through the pre-charging circuit, so that the electric quantity balance efficiency can be improved, and meanwhile, the safety of the electric quantity balance process can be improved by using the pre-charging circuit.

In one embodiment, in step S614, when the real parameter of the battery pack satisfies the preset condition, the power balancing process is performed on the plurality of battery packs, and the process includes: in the case where there are a plurality of battery packs connected in series in the battery pack connection scheme, the series charge balancing process is performed.

Specifically, the electronic terminal device may acquire battery pack parameters of a plurality of battery packs connected in series, and compare the battery pack parameters of each battery pack. The following processing is performed for a battery pack having a higher battery pack parameter (such as SOC parameter) among a plurality of battery packs connected in series: the passive balance of all the battery cores in the battery pack is controlled to be opened, so that the discharge processing of the battery pack with higher battery pack parameters (such as SOC parameters) is realized until the discharged plurality of battery packs connected in series achieve series electric quantity balance, for example, the SOC parameters are consistent.

In this embodiment, through discharging the great battery package of battery package parameter among a plurality of battery packages to series connection, can simplify the balanced flow of series connection electric quantity, improve the balanced efficiency of series connection electric quantity.

In one embodiment, as shown in fig. 7, a schematic diagram of a multi-cell pack series-parallel hybrid battery system 700 (shown as a 2-parallel n-series battery system) is provided. The battery management system 202, the voltage measurement circuit 204, the isolation communication component 206 and the current sensor 208 are disposed in the battery pack 701, the battery pack 702, the battery pack 703, the battery pack 704, the battery pack 70m and the battery pack 70 n. Illustratively, each battery pack can also be provided with a battery core, a positive terminal switch, a single-pole positive terminal switch, a positive terminal resistor, a single-pole negative terminal switch, a negative terminal resistor, a MOS charging switch, a MOS discharging switch, a pre-charging circuit switch and a pre-charging circuit resistor.

The battery pack 701 and the battery pack 702 are connected in parallel. The battery pack 703 and the battery pack 704 are connected in parallel. The battery pack 70m and the battery pack 70n are connected in parallel. The battery pack 701 is connected in series to the battery pack 703 and the battery pack 70 m. The battery pack 702 is connected in series with the battery pack 704 and the battery pack 70 n.

Specifically, when the SOC parameter (or voltage parameter) of the battery pack 703 is greater than the SOC parameter (or voltage parameter) of the battery pack 704, the battery pack 703 and the battery pack 704 may be controlled to conduct a loop through an electric core, a positive terminal switch, a fuse, a pre-charge circuit switch, a pre-charge circuit resistor, the current sensor 208, an MOS charge switch, and an MOS discharge switch, so as to charge the battery pack 704, and achieve parallel electric quantity balance of the battery system.

Under the condition that the difference value between the battery pack 703 and the battery pack 704 is greater than or equal to the preset threshold, the battery pack 703 is controlled to directly conduct a loop through the electric core, the positive terminal switch, the fuse, the MOS charging switch, the MOS discharging switch and the current sensor 208, so that the battery pack 704 is charged, and the parallel electric quantity balance of the battery system is realized.

Under the condition that the SOC parameters of the battery pack 701 and the battery pack 702 after being connected in parallel are larger than the SOC parameters of the battery pack 70m and the battery pack 70n after being connected in parallel, the battery cell of the battery pack 701 and the battery cell of the battery pack 702 are controlled to conduct the equalization circuit to discharge until the SOC parameters of the battery pack 701 and the battery pack 702 after being connected in parallel are consistent with the SOC parameters of the battery pack 70m and the battery pack 70n after being connected in parallel, and series electric quantity balance of the battery system is achieved.

In this embodiment, the plurality of battery packs connected in series are respectively subjected to series equalization processing, and the plurality of battery packs connected in parallel are subjected to parallel equalization processing, so that the flexibility of the electric quantity equalization operation can be improved.

In one embodiment, before acquiring the battery pack parameters of the plurality of battery packs in step S202, the method may further include: battery pack parameters of a plurality of candidate battery packs in a connection are obtained. And responding to the judgment result that the battery pack parameters meet the preset conditions, and setting the candidate battery pack into a selectable state. In response to a selection operation on the candidate battery packs, the plurality of battery packs are determined as selected candidate battery packs.

Specifically, in the case where the number of battery packs is large, the electronic terminal device may acquire battery pack parameters of a plurality of candidate battery packs in connection. And comparing the battery pack parameters of each candidate battery pack, and determining that the battery pack parameters meet the preset conditions under the condition that the battery pack parameters are consistent or the battery pack parameters are greater than a preset parameter threshold. And responding to the judgment result that the battery pack parameters meet the preset conditions, and setting the candidate battery pack to be in 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 having a SOH greater than 80% may be set to the selectable state, and a SOH less than 80% may indicate that the battery pack is not healthy, and may be set to the non-selectable state with a safety risk.

As shown in fig. 8, the electronic terminal device may present the battery pack parameters of each candidate battery pack in the selectable state to the user, and determine, in response to a selection operation of the candidate battery pack in the selectable state by the user, a plurality of battery packs for performing a subsequent connection operation as candidate battery packs currently selected by the user. The electronic terminal equipment can also show a function interface of the adding equipment to a user, and the user can actively add a battery pack which is not in communication connection with the electronic terminal equipment through the function interface, so that the battery pack is accessed into the system.

In this embodiment, the candidate battery packs are set to the selectable state in response to the determination result that the battery pack parameters meet the preset conditions, and the plurality of battery packs are determined to be the selected candidate battery packs in response to the selection operation on the candidate battery packs, so that the data volume of the battery packs processed by the electronic terminal device in the generation process of the battery pack connection scheme can be reduced, and the generation efficiency of the battery pack connection scheme is improved. Meanwhile, due to the fact that the candidate battery packs are screened by the preset conditions, the parameter consistency of the battery packs in the battery pack connection scheme can be guaranteed, and the service life and the safety of the battery packs are improved.

In one embodiment, the electronic terminal device may comprise any one or more of a mobile electronic terminal device or a display control screen. The mobile electronic terminal device may be installed with a battery system configuration program, and the configuration method of the battery system provided in the foregoing embodiment is implemented by the battery system configuration program. The display control screen can be a monitoring device with a display panel connected in the battery system, and also can be a control module with a display panel directly integrated into the battery pack.

In the case that the electronic terminal device is a mobile electronic terminal device, each battery pack and the mobile electronic terminal device may be connected in any one of wireless connection manners, such as bluetooth, a wireless local area network, or a cloud server.

In the case where the electronic terminal device is a display control screen, each battery pack may be connected to the display control screen in any one of a plurality of ways, such as bluetooth, wireless lan, bus (e.g., isolated bus), or port (e.g., isolated RS485, a serial communication port). In this case, the display control panel may be directly used as the host control terminal to control the plurality of battery packs.

In one embodiment, a configuration method of a battery system is provided, specifically:

the electronic terminal device may obtain battery pack parameters for a plurality of candidate battery packs. And comparing the battery pack parameters of each candidate battery pack, and setting the candidate battery packs to be in a selectable state under the condition that the rated voltages of the candidate battery packs are consistent and the SOC parameters are greater than a preset parameter threshold. Through a visual user interaction interface, candidate battery packs in selectable states are displayed for a user, the selected candidate battery packs are used as the battery packs for subsequent connection in response to selection operation of the candidate battery packs, the problem that the service life of the battery packs is shortened due to inconsistent rated voltage or low SOC (system on chip) parameters can be avoided, and operation safety risks caused by the fact that the user selects an improper battery pack for connection can also be avoided.

The method comprises the steps of determining at least one alternative voltage grade and/or alternative charge capacity obtained after a plurality of battery packs are connected according to battery pack parameters of each battery pack, and selecting battery system requirement parameters from the alternative voltage grade and/or the alternative charge capacity, so that the realizability and diversity of the battery system requirement parameters can be improved.

The number of the battery pack series-connection units and the number of the battery packs corresponding to the battery pack series-connection units are determined according to the battery system requirement parameters and the battery pack parameters of the plurality of battery packs. And determining or outputting at least one alternative connection scheme according to the number of the cells and the number of the battery packs corresponding to the battery pack series connection cells, so that the diversity of the alternative connection schemes can be improved.

And determining the battery pack connection scheme from at least one alternative connection scheme according to the charge capacity corresponding to the alternative connection scheme. Or, at least one alternative connection scheme is directly output. And responding to the selection operation of the user on at least one alternative connection scheme, and determining that the selected alternative connection scheme is the battery pack connection scheme. The method can reduce the determination difficulty of the battery pack connection scheme and improve the utilization rate of the battery pack.

Whether the current connection mode of the plurality of battery packs is consistent with the connection mode in the battery pack connection scheme or not is detected, battery pack real parameters corresponding to the plurality of connected battery packs are obtained under the condition that matching is successful, and electric quantity balance processing is carried out on the plurality of battery packs under the condition that the battery pack real parameters meet preset conditions (for example, the battery pack real parameters are larger than a threshold), for example, the battery packs with larger voltage parameters or SOC parameters in parallel connection are adopted to charge the battery packs with smaller voltage parameters or SOC parameters. And opening the battery cell of the battery pack with larger voltage parameter or SOC parameter in the series connection for balanced discharging. The accuracy and the service life of the battery system can be improved.

It should be understood that, although the steps in the flowcharts related to the embodiments as described above are sequentially displayed as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not limited to being performed in the exact order illustrated and, unless explicitly stated herein, may be performed in other orders. Moreover, at least some of the steps in the flowcharts according to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be rotated or alternated with other steps or at least some of the steps or stages in other steps.

Based on the same inventive concept, the embodiment of the present application further provides a configuration device of a battery system for implementing the configuration method of the battery system. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so specific limitations in the following embodiments of one or more configuration devices for a battery system may refer to the limitations in the above configuration method for a battery system, and are not described herein again.

In one embodiment, there is provided a configuration apparatus of a battery system, including: the system comprises a first parameter acquisition module, a second parameter acquisition module and a scheme determination module, wherein:

the first parameter acquisition module is used for acquiring battery pack parameters of a plurality of battery packs.

And the second parameter acquisition module is used for responding to the first operation instruction aiming at the battery system requirement parameters and acquiring the battery system requirement parameters.

And the scheme determining module is used for 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, and the battery pack connection scheme is used for indicating the plurality of battery packs to be connected to form the battery system.

The respective modules in the configuration apparatus of the battery system described above may be wholly or partially implemented by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, a computer device is provided, which may be an electronic terminal device, and its internal structure diagram may be as shown in fig. 9. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile 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 an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external electronic terminal device, and the wireless communication can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a method of configuring a battery system. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.

Those skilled in the art will appreciate that the architecture shown in fig. 9 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, an electronic terminal device is further provided, which includes a memory and a processor, where the memory stores a computer program, and the processor implements the steps in the foregoing method embodiments when executing the computer program.

In an embodiment, a computer-readable storage medium is also provided, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.

In an embodiment, a computer program product is provided, comprising a computer program which, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.

It should be noted that the data referred to in the present application (including but not limited to data for analysis, stored data, presented data, etc.) are information and data that are fully authorized by each party.

It will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by hardware instructions of a computer program, which may be stored in a non-volatile computer-readable storage medium, and when executed, may include the processes of the above embodiments of the methods. Any reference to memory, databases, or other media used in the embodiments provided herein can include at least one of non-volatile and volatile memory.

Claims

1. A configuration method of a battery system is characterized in that the method is applied to an electronic terminal device and comprises the following steps:

acquiring battery pack parameters of a plurality of battery packs;

2. The method of claim 1, wherein obtaining battery system demand parameters in response to the first operating instructions for battery system demand parameters comprises:

3. The method according to claim 1 or 2, wherein determining or outputting a battery pack connection scheme according to the battery pack parameters of the plurality of battery packs and the battery system demand parameters comprises:

and outputting the battery pack connection scheme.

4. The method of claim 3, wherein said determining the battery pack connection scheme from the at least one alternative connection scheme comprises:

5. The method of claim 3, wherein determining at least one alternative connection scheme based on the battery system requirement parameter and a plurality of battery pack parameters for the battery pack comprises:

6. The method of claim 5, wherein determining the at least one alternative connection scheme based on the number of units and the number range comprises:

7. The method of claim 1, further comprising:

determining a voltage difference value between a plurality of the battery packs connected in parallel in a case where there are a plurality of the battery packs connected in parallel in the battery pack connection scheme;

8. The method of claim 1, further comprising:

determining a remaining capacity difference value between a plurality of the battery packs connected in series in a case where there are the plurality of the battery packs connected in series in the battery pack connection scheme;

9. The method of claim 1, further comprising:

and matching the current connection mode corresponding to each battery pack with the battery pack connection scheme, and determining or outputting third prompt information in response to a result that the battery pack connection scheme fails to be matched with the current connection mode, wherein the third prompt information is used for indicating the adjustment of the current connection mode.

10. An electronic terminal device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor realizes the steps of the method of any of claims 1 to 9 when executing the computer program.