CN113595174A - Battery management method, device, equipment and server - Google Patents

Battery management method, device, equipment and server Download PDF

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Publication number
CN113595174A
CN113595174A CN202110731399.0A CN202110731399A CN113595174A CN 113595174 A CN113595174 A CN 113595174A CN 202110731399 A CN202110731399 A CN 202110731399A CN 113595174 A CN113595174 A CN 113595174A
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China
Prior art keywords
battery
charged
parameter information
mode
management
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CN202110731399.0A
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Chinese (zh)
Inventor
冯伟东
王阳
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Mobai Beijing Information Technology Co Ltd
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Mobai Beijing Information Technology Co Ltd
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Priority to CN202110731399.0A priority Critical patent/CN113595174A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00036—Charger exchanging data with battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
    • H02J7/00041—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors in response to measured battery parameters, e.g. voltage, current or temperature profile
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The application discloses a battery management method, device, system and server, and belongs to the technical field of battery management. The battery management method comprises the steps of obtaining battery parameter information of a battery to be charged connected to charging equipment; obtaining a health degree evaluation result of the battery to be charged according to the battery parameter information; determining a target management mode of the battery to be charged according to the health degree evaluation result; the target management mode is one of a rated power charge-discharge mode, a derated charge-discharge mode and a health early warning mode; and sending the mode information reflecting the target management mode to the charging equipment for corresponding battery management.

Description

Battery management method, device, equipment and server
Technical Field
The application belongs to the technical field of battery management, and particularly relates to a battery management method, a battery management device, battery management equipment and a server.
Background
With the development of the electric bicycle industry, the quantity of the electric bicycle industry is close to saturation, the current main work is to maintain devices of the electric bicycle, the battery is an important object in the maintenance work, the current battery management is mainly realized by manual maintenance, or a user reports battery faults, and the management efficiency of the battery is not high; although the current battery running state can also be reported through an electric quantity management module in the battery, the health management mode of the battery is still imperfect because the next effective utilization is not carried out on the acquired battery information only by acquiring the battery information.
Content of application
The embodiment of the application aims to provide a battery management method, a battery management device, battery management equipment and a server, and can solve the problem that the existing battery management efficiency is not high.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a battery management method, which includes obtaining battery parameter information of a battery to be charged connected to a charging device; obtaining a health degree evaluation result of the battery to be charged according to the battery parameter information; determining a target management mode of the battery to be charged according to the health degree evaluation result; the target management mode is one of a rated power charge-discharge mode, a derated charge-discharge mode and a health early warning mode; and sending the mode information reflecting the target management mode to the charging equipment for corresponding battery management.
Optionally, the obtaining a health degree evaluation result of the battery to be charged according to the battery parameter information includes: determining a target battery parameter model matched with the battery model according to the battery model in the battery parameter information; the target battery parameter model comprises standard parameter information of the battery model; and evaluating the battery parameter information according to the target battery parameter model to obtain a health degree evaluation result of the battery to be charged.
Optionally, before the determining, according to the battery model in the battery parameter information, a target parameter model matching the battery model, the method further includes: acquiring a battery sample library of a plurality of battery models; wherein the plurality of battery types includes a battery type of the battery to be charged; for each battery model in the multiple battery models, establishing a battery parameter model matched with the corresponding battery model according to the battery parameter information of the battery sample in the corresponding battery sample library; wherein the established battery parameter model comprises the target battery parameter model.
Optionally, the evaluating the battery parameter information according to the target battery parameter model to obtain a health degree evaluation result of the battery to be charged includes: acquiring standard parameter information in a target battery parameter model corresponding to the battery parameter information of the battery to be charged; and carrying out consistency evaluation on the battery parameter information of the battery to be charged and the standard parameter information to obtain a health degree evaluation result of the battery to be charged.
Optionally, the performing consistency evaluation on the battery parameter information of the battery to be charged and the standard parameter information to obtain a health degree evaluation result of the battery to be charged includes: acquiring the difference value between the battery parameter information of the battery to be charged and the corresponding parameter in the standard parameter information; and obtaining the health degree evaluation result of the battery to be charged according to the difference value and the preset weight of each parameter.
Optionally, determining a target management mode of the battery to be charged according to the health evaluation result includes: determining that the target management mode of the battery to be charged is a rated power charging and discharging mode under the condition that the health degree evaluation result represents that the health degree value of the battery to be charged is larger than a first numerical value; under the condition that the health degree evaluation result represents that the health degree value of the battery to be charged is smaller than a first numerical value and larger than a second numerical value, determining that the target management mode of the battery to be charged is a de-rated charging and discharging mode; and under the condition that the health degree evaluation result represents that the health degree value of the battery to be charged is smaller than a second numerical value, determining that the target management mode of the battery to be charged is a health early warning mode.
Optionally, after the battery parameter model matched with the corresponding battery model is established according to the battery parameter information of the battery sample in the corresponding battery sample library, the method further includes: and updating the battery parameter model according to the battery parameter information of the battery to be charged.
In a second aspect, an embodiment of the present application provides a battery management apparatus, including: the data acquisition module is used for acquiring battery parameter information of a battery to be charged connected to the charging equipment; the evaluation module is used for obtaining the health degree evaluation result of the battery to be charged according to the battery parameter information; the health management module is used for determining a target management mode of the battery to be charged according to the health degree evaluation result; the target management mode is one of a rated power charge-discharge mode, a derated charge-discharge mode and a health early warning mode; and the data transmission module is used for sending the mode information reflecting the target management mode to the charging equipment for corresponding battery management.
In a third aspect, an embodiment of the present application provides a server, including the battery management apparatus according to the second aspect, or the server includes a memory and a processor, where the memory is used to store a program or instructions, and the program or instructions, when executed by the processor, implement the steps of the method according to the first aspect.
In a fourth aspect, an embodiment of the present application provides a battery management apparatus, including: the server is the server according to the third aspect, and the charging device includes a communication module and a charging management module, the charging management module is connected to a data transmission interface on the battery compartment for connecting to a battery to be charged so as to receive battery parameter information of the battery to be charged, and the communication module is used for transmitting the battery parameter information of the battery to be charged to the server; the charging cabin body is internally provided with an accommodating space corresponding to a battery to be charged and a data transmission interface for connecting the battery to be charged.
Optionally, the charging device is further configured to: and detecting whether the data transmission interface is connected with a battery to be charged or not, and acquiring the battery parameter information of the battery to be charged under the condition that the data transmission interface is connected with the battery to be charged.
In a fifth aspect, the present embodiments provide a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method according to the first aspect.
In the embodiment of the application, a health degree evaluation result of the battery to be charged is obtained according to the battery parameter information; determining a target management mode of the battery to be charged according to the health degree evaluation result; and sending the mode information reflecting the target management mode to the charging equipment for corresponding battery management. The battery can be pertinently managed according to the health degree of the battery, so that the charging and discharging efficiency is improved, the damage of the battery is reduced, and the service life of the battery is prolonged.
Drawings
Fig. 1 is a flowchart illustrating steps of a charging management method according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating steps of creating a battery parameter model according to the present embodiment;
FIG. 3 is a flowchart illustrating a step of generating a health assessment result according to the present embodiment;
fig. 4 is a schematic block diagram of a battery management apparatus provided in the present embodiment;
FIG. 5 is a functional block diagram of a server provided in the present embodiment;
fig. 6 is a schematic block diagram of a battery management apparatus provided in the present embodiment;
fig. 7 is a schematic diagram illustrating an interaction flow between a server and a charging device according to an example of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The following describes the battery management method provided by the embodiment of the present application in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.
Referring to fig. 1, the battery management method provided in this embodiment includes the following steps:
in step S110, battery parameter information of a battery to be charged connected to the charging device is acquired.
The battery to be charged can be understood as a battery that is inserted into the charging device, i.e. to be charged, for example, the charging device is a charging cabinet, and the charging battery is a battery that is taken off from the electric bicycle by a user and placed in a charging point bin of the charging cabinet for charging. The battery to be charged can be a lithium battery module, and for the lithium battery module, a lithium iron phosphate battery module or a ternary lithium battery module and the like can be also adopted. The battery module may include a plurality of battery cells.
The BATTERY parameter information comprises the model, the charging data and the discharging data of the BATTERY, wherein the discharging data can be counted by a BATTERY management chip inside the BATTERY, and the BATTERY management chip can be provided with a BATTERY management system (BATTERY MANAGEMENT SYSTEM, BMS), so that the discharging parameter information of the BATTERY is counted under the condition that the BATTERY is not connected with a charging device, and the discharging parameter information can be used for evaluating the health degree of the BATTERY. The discharge parameter information may include directly collected discharge object information of the battery, discharge current, discharge voltage, discharge time, discharge times, discharge temperature, discharge position, and associated timestamp. And calculating the residual capacity, internal resistance and other information of the battery according to the directly acquired information.
The charging data can be collected by the charging equipment, and the charging data comprises a charging equipment model code, a charging equipment manufacturer code, a charging equipment software and hardware version number, a charging current, a charging voltage, a charging temperature, a charging time, a charging frequency, charging fault information, a relevant timestamp and the like.
In this embodiment, after the battery is connected to the charging device, the charging device may acquire the discharging data in the battery management chip, and the charging device transmits the battery parameter information including the charging data and the discharging data to the server, where the server may be a cloud server for executing the battery management method provided in this embodiment.
Step S120, obtaining a health degree evaluation result of the battery to be charged according to the battery parameter information;
the health degree represents the health degree of the battery to be charged, and can be specifically evaluated according to the voltage value and the current value of the battery in charging and discharging under different conditions. Specifically, in the present embodiment, the evaluation may be performed by creating a battery parameter model.
The step of creating the battery parameter model comprises:
step S210, a battery sample library of a plurality of battery models is obtained.
The battery sample library comprises battery parameter information of a plurality of battery models, and specifically, the battery parameter information may include discharge key data such as temperature data, usage duration, discharge times and the like of a battery in a historical discharge process, and charge key data such as temperature, full charge time, charge times and the like of the battery in a charge process.
In some feasible embodiments, the battery parameter information in the battery sample library may be imported existing data, or may be obtained by storing the battery parameter information of the battery to be charged, which is obtained each time, so as to obtain the battery parameter information of the full life cycle of the battery, so as to improve the sample reliability of the sample library.
The plurality of battery models contained in the battery sample library comprise the battery model of the battery to be charged. If the battery model of the battery to be charged is the first time input sample library, that is, before the battery to be charged is connected, the battery parameter information of the battery to be charged does not exist in the battery sample library, then the parameter information of the battery to be charged is stored in the battery sample library, and the subsequent battery parameter model is created according to the battery parameter information of the battery to be charged.
Step S220, for each battery model in the plurality of battery models, a battery parameter model matched with the corresponding battery model is established according to the battery parameter information of the battery sample in the corresponding battery sample library.
After the battery sample library is obtained, in this embodiment, a plurality of battery parameter models classified by battery models are created, specifically, battery parameter information of a battery corresponding to each type of battery model is obtained by classifying each battery model in the battery sample library, so that a battery parameter model matched with the corresponding battery model is created. For example, the data in the created battery parameter model can represent the charging current and the discharging current of the type a battery at the temperature of 20 ℃. As another example, the data in the battery parameter model may characterize the maximum number of discharges and the maximum number of charges for a full life cycle of a type a battery. As another example, the data in the battery parameter model may characterize the optimal charge duration for the full life cycle of a type a battery.
The battery parameter model established in this embodiment includes a target battery parameter model, which is a battery parameter model corresponding to the battery model of the battery to be charged.
It should be noted that, in this embodiment, a battery parameter model classified by battery model is created, and in a feasible implementation, parameters of the battery, such as charging duration, discharging duration, charging times, usage area, and temperature, may also be used as classification criteria to compare the health conditions of the battery under different factors.
After the battery parameter model is created and the battery parameter information to be charged is acquired, the health degree of the battery is evaluated by using the battery parameter information to be charged and a target battery parameter model of the battery parameter model and the battery parameter information to be charged, so that a health degree evaluation result of the battery to be charged is obtained. That is, step S120 includes:
and step S310, determining a target battery parameter model matched with the battery model according to the battery model in the battery parameter information.
In this embodiment, the target battery parameter model includes standard parameter information corresponding to the battery model, where the standard parameter information may be an optimal index of the battery model under the current condition, which is obtained through statistical calculation based on the battery parameter information in the sample library. For example, a type B battery requires M minutes of standard time to fully charge at 16 ℃, N hours of standard discharge time in the fully charged state, and P years of full life of the battery. The standard parameter information is compared with the current parameter information of the battery to be charged, and the health condition of the battery to be charged can be reflected.
In some optional examples, the target battery parameter model may also include historical failure information of the battery, and the battery may be evaluated according to a failure cause and a failure frequency of the historical failure information.
The specific evaluation process may include steps S320 and S330, where step S320 is to obtain standard parameter information in a target battery parameter model corresponding to battery parameter information of the battery to be charged;
for example, the parameters included in the acquired battery parameter information of the battery to be charged include: the standard parameter information in the target battery parameter model corresponding to the battery to be charged comprises the following parameters: the battery comprises a C-type battery, a standard average discharge temperature value, standard discharge times in a full life cycle and one-time discharge standard time length.
For another example, the parameters included in the acquired battery parameter information of the battery to be charged include: the standard parameter information in the target battery parameter model corresponding to the battery to be charged comprises the following standard parameter information, wherein the standard parameter information comprises a type C battery, a charging voltage value and a discharging voltage value when the temperature is 20 ℃, a charging current value and a discharging current value when the temperature is 20 ℃ and historical faults for 2 times: the battery comprises a C-type battery, a standard charging voltage value and a standard discharging voltage value when the temperature is 20 ℃, a standard charging current value and a standard discharging current value when the temperature is 20 ℃, and the total number of allowed faults in the full life cycle. By analogy, other parameters are not described herein.
And step S330, performing consistency evaluation on the battery parameter information of the battery to be charged and the standard parameter information to obtain a health degree evaluation result of the battery to be charged.
In the embodiment, the difference value between the battery parameter information of the battery to be charged and the corresponding parameter in the standard parameter information can be obtained; and obtaining the health degree evaluation result of the battery to be charged according to the difference value and the preset weight of each parameter.
For example, the battery parameter information of the battery to be charged includes the following data: the charging current value, the discharging voltage value, the temperature value during charging, the time length required by one-time full charging and the historical charging times of the A-type batteries are subtracted, so that a first difference value is obtained; the discharging voltage value is differed from the standard charging voltage value of the battery with the model A in the standard parameter information to obtain a second difference value; the temperature value during the charging is differed from the standard charging temperature value of the battery with the type A in the standard parameter information to obtain a third difference value; the time length required by the one-time full charging is differed from the standard charging time length of the type A battery in the standard parameter information to obtain a fourth difference value; the charging times of the battery to be charged are subtracted from the full-period charging times of the battery of the type A in the standard parameter information to obtain a fifth difference value; and obtaining a health degree evaluation result according to the first difference, the second difference, the third difference, the fourth difference and the fifth difference and corresponding weights. Preferably, the weights of the first difference, the second difference, the third difference, the fourth difference and the fifth difference are sequentially reduced, that is, the charging current and the charging voltage of the battery have a large influence on the health of the battery.
In one possible embodiment, the health evaluation result of the battery to be charged may be characterized by giving a health value, for example, if the health value is greater than the first value, the health status of the battery to be charged is well characterized; when the health value is smaller than a first value and larger than a second value, the battery health condition of the battery to be charged is represented generally; in the case that the health value is smaller than the second value, there is a risk of damage to the battery to be charged, but other forms of evaluation results for the health of the battery may be used, such as excellent and better characterization.
And step S130, determining a target management mode of the battery to be charged according to the health degree evaluation result.
In this embodiment, the target management mode is one of a rated power charge-discharge mode, a derated charge-discharge mode, and a health early warning mode.
In this embodiment, the health degree evaluation result includes an evaluated health degree value, and when the health degree evaluation result indicates that the health degree value of the battery to be charged is greater than a first value, it is determined that the target management mode of the battery to be charged is a rated power charge-discharge mode. For example, in the case where the health value is greater than 75, it is determined that the target management mode of the battery to be charged is the rated power charge-discharge mode. The rated power charge-discharge mode is to charge and discharge the battery with rated power, that is, the charging voltage and the discharging voltage are both rated voltages, and the charging current and the discharging current are both rated currents.
And under the condition that the health degree evaluation result represents that the health degree value of the battery to be charged is smaller than the first numerical value and larger than the second numerical value, determining that the target management mode of the battery to be charged is a de-rated charging and discharging mode. For example, in the case where the health value is less than 75 and greater than 50, the target management mode of the battery to be charged is determined to be the de-rated charge-discharge mode. The derating charge-discharge mode is to charge and discharge the battery with a power value smaller than the rated power, wherein, because the charge-discharge voltage of the battery is generally a fixed value, the derating charge-discharge management of the battery can be achieved by reducing the current in the charging or discharging process.
And under the condition that the health degree evaluation result represents that the health degree value of the battery to be charged is smaller than the second numerical value, determining that the target management mode of the battery to be charged is a health early warning mode. For example, in the case where the health value is less than 50, the target management mode of the battery to be charged is determined to be the health warning mode. At the moment, the safety risk of the battery to be charged is represented, and the operation personnel is reminded through the health early warning information to maintain the battery.
Step S140, sending the mode information reflecting the target management mode to the charging device for corresponding battery management.
In this embodiment, the mode information reflecting the target management mode may be target management mode information, for example, one of rated power charge-discharge mode information, derated charge-discharge mode information, and health warning mode information.
In this embodiment, when charging, the charging device may control a circuit in the battery to be charged to perform corresponding constant-voltage charging or step-down charging according to the target management mode information. The target management mode information can also be sent to the battery to be charged through the charging equipment, the battery to be charged stores the target management mode information, and the battery performs constant-voltage discharge or reduced-voltage discharge according to the target management mode information under the condition that the battery is discharged.
When the target management mode information is the health early warning mode information, the health early warning mode information of the battery to be charged can be sent to the battery to be charged through the charging equipment to be stored, and when the battery to be charged is fully charged and used, the health early warning mode information can be displayed through a display device of the electric vehicle to remind a user.
In addition, in this embodiment, after the battery parameter model matched with the corresponding battery model is established according to the battery parameter information of the battery sample in the corresponding battery sample library, the method further includes: the battery parameter model is updated according to the battery parameter information of the battery to be charged, namely, the sample information in the battery database is added according to the currently acquired battery parameter information, so that the samples in the battery database are richer, and the accuracy of the standard parameter information in the target sample model is improved.
According to the embodiment, different battery management modes are generated according to different health degree results of the battery to be charged, and the targeted management of the battery can be realized, so that the charging and discharging efficiency is improved, the damage of the battery is reduced, and the service life of the battery is prolonged.
It should be noted that, in the battery management method provided in the embodiment of the present application, the execution main body may be a battery management device, or a control module in the battery management device for executing the loaded battery management method. In the embodiment of the present application, a method for a battery management device to perform loaded battery management is taken as an example, and the battery management method provided in the embodiment of the present application is described.
Referring to fig. 4, the battery management apparatus 400 in the present embodiment includes:
a data obtaining module 410, configured to obtain battery parameter information of a battery to be charged connected to a charging device; the battery parameter information includes a model of the battery, charging data, and discharging data.
The evaluation module 420 is configured to obtain a health degree evaluation result of the battery to be charged according to the battery parameter information; determining a target battery parameter model matched with the battery model according to the battery model in the battery parameter information; the target battery parameter model comprises standard parameter information of the battery model; and evaluating the battery parameter information according to the target battery parameter model to obtain a health degree evaluation result of the battery to be charged.
The evaluation module 420 is further configured to obtain a battery sample library of a plurality of battery models; the plurality of battery types comprise the battery types of batteries to be charged; for each battery model in the multiple battery models, establishing a battery parameter model matched with the corresponding battery model according to the battery parameter information of the battery sample in the corresponding battery sample library; wherein the established battery parameter model comprises a target battery parameter model.
The evaluation module 420 is further configured to obtain standard parameter information in a target battery parameter model corresponding to the battery parameter information of the battery to be charged; and carrying out consistency evaluation on the battery parameter information of the battery to be charged and the standard parameter information to obtain a health degree evaluation result of the battery to be charged.
The health management module 430 is used for determining a target management mode of the battery to be charged according to the health degree evaluation result; the target management mode is one of a rated power charge-discharge mode, a derated charge-discharge mode and a health early warning mode; and determining that the target management mode of the battery to be charged is a rated power charging and discharging mode under the condition that the health degree evaluation result represents that the health degree value of the battery to be charged is greater than a first numerical value; determining that the target management mode of the battery to be charged is a de-rated charging and discharging mode under the condition that the health degree evaluation result represents that the health degree value of the battery to be charged is smaller than a first numerical value and larger than a second numerical value; and under the condition that the health degree evaluation result represents that the health degree value of the battery to be charged is smaller than the second numerical value, determining that the target management mode of the battery to be charged is a health early warning mode.
And a data transmission module 440, configured to send mode information reflecting the target management mode to the charging device for performing corresponding battery management.
The battery management apparatus 400 in the embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiments of the present application are not particularly limited.
The battery management apparatus 400 in the embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.
The battery management device 400 provided in this embodiment of the application can implement each process implemented by the battery management device in the method embodiments of fig. 1 to fig. 3, and for avoiding repetition, details are not described here again.
According to the embodiment, different battery management modes are generated according to different health degree results of the battery to be charged, and the targeted management of the battery can be realized, so that the charging and discharging efficiency is improved, the damage of the battery is reduced, and the service life of the battery is prolonged.
Optionally, an embodiment of the present application further provides a server 500, which includes the battery management apparatus in fig. 4, or, referring to fig. 5, the server 500 includes a processor 520 and a memory 510, where the memory 510 is used to store a program or an instruction, and the program or the instruction is executed by the processor 520 to implement each process of the above-mentioned battery management method embodiment, and can achieve the same technical effect, and in order to avoid repetition, it is not described herein again.
It should be noted that the server in the embodiment of the present application includes the mobile electronic device and the non-mobile electronic device described above.
Optionally, referring to fig. 6, an embodiment of the present application further provides a battery management apparatus 600, including:
a server 500, where the server 500 is the server shown in fig. 5, and the server is configured to execute the above battery management method, and includes obtaining battery parameter information of a battery to be charged connected to a charging device; obtaining a health degree evaluation result of the battery to be charged according to the battery parameter information; determining a target management mode of the battery to be charged according to the health degree evaluation result; and sending the mode information reflecting the target management mode to the charging equipment for corresponding battery management. The target management mode is one of a rated power charge-discharge mode, a derated charge-discharge mode and a health early warning mode;
the charging device 610 includes a communication module 6110 and a charging management module 6120, the charging management module 6120 is connected to a data transmission interface on the battery compartment for connecting a battery to be charged, so as to receive battery parameter information of the battery to be charged, and the communication module 6110 is used for transmitting the battery parameter information of the battery to be charged to the server;
the charging device 610 performs power-on self-test after being started, and after the self-test is completed, the charging device 610 is further configured to detect whether the data transmission interface is connected to the battery to be charged, and acquire battery parameter information of the battery to be charged under the condition that the data transmission interface is connected to the battery to be charged. The charging equipment can be upgraded through remote firmware, so that the type of the adapted battery is expanded, and the adaptability of the charging equipment to different batteries is improved. The charging equipment is also used for receiving the target management mode information issued by the server and configuring charging parameters according to the corresponding target management mode information so as to charge the battery by adopting the voltage reduction parameters of rated voltage or lower than the rated voltage.
The charging cabin 620 has a containing space corresponding to the battery to be charged in the charging cabin, and a data transmission interface for connecting the battery to be charged, and the battery to be charged is connected with the charging management module of the charging device through the data transmission interface. The charging bin body 620 may be a charging bin corresponding to a charging cabinet.
In this embodiment, after the charging device 620 detects that the battery to be charged is connected, that is, after the charging device establishes connection with the battery to be charged, the battery management chip of the battery to be charged may actively send the battery parameter information of the battery to be charged to the charging device, or send the battery parameter information of the battery to be charged to the charging device according to a request of the charging device.
Referring to fig. 7, an interaction flow between a charging device and a server of a battery management device in this embodiment is that the charging device is configured to:
step S710, the charging device performs power-on self-test, establishes connection with the server, and obtains battery parameter information of the battery to be charged.
In step S711, the charging device sends the battery parameter information of the battery to be charged to the server.
Step S712, performing battery management on the battery to be charged in response to the mode information of the target management mode sent by the server.
The server is used for:
and step S720, creating a battery parameter model according to the battery sample library.
And step S721, determining a target battery parameter model matched with the battery model according to the battery model in the battery parameter information.
Step S722, standard parameter information in the target battery parameter model corresponding to the battery parameter information of the battery to be charged is acquired.
And step S723, performing consistency evaluation on the battery parameter information of the battery to be charged and the standard parameter information to obtain a health degree evaluation result of the battery to be charged.
Step S724, according to the health degree evaluation result, determining a target management mode of the battery to be charged.
Step S725, mode information reflecting the target management mode is transmitted to the charging apparatus.
The specific manner of each step in this embodiment is described in the battery management method in fig. 1 to fig. 3, and is not described herein again.
Optionally, this embodiment further provides a readable storage medium, on which a program or instructions are stored, and when the program or instructions are executed by a processor, the steps of the battery management method provided in the above embodiment are implemented.
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, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (12)

1. A method of battery management, the method comprising:
acquiring battery parameter information of a battery to be charged connected to charging equipment;
obtaining a health degree evaluation result of the battery to be charged according to the battery parameter information;
determining a target management mode of the battery to be charged according to the health degree evaluation result; the target management mode is one of a rated power charge-discharge mode, a derated charge-discharge mode and a health early warning mode;
and sending the mode information reflecting the target management mode to the charging equipment for corresponding battery management.
2. The battery management method according to claim 1, wherein the obtaining the health evaluation result of the battery to be charged according to the battery parameter information comprises:
determining a target battery parameter model matched with the battery model according to the battery model in the battery parameter information; the target battery parameter model comprises standard parameter information of the battery model;
and evaluating the battery parameter information according to the target battery parameter model to obtain a health degree evaluation result of the battery to be charged.
3. The battery management method according to claim 2, wherein before the determining of the target parameter model matching the battery model according to the battery model number in the battery parameter information, the method further comprises:
acquiring a battery sample library of a plurality of battery models; wherein the plurality of battery types includes a battery type of the battery to be charged;
for each battery model in the multiple battery models, establishing a battery parameter model matched with the corresponding battery model according to the battery parameter information of the battery sample in the corresponding battery sample library; wherein the established battery parameter model comprises the target battery parameter model.
4. The battery management method according to claim 2, wherein the evaluating the battery parameter information according to the target battery parameter model to obtain the health degree evaluation result of the battery to be charged comprises:
acquiring standard parameter information in a target battery parameter model corresponding to the battery parameter information of the battery to be charged;
and carrying out consistency evaluation on the battery parameter information of the battery to be charged and the standard parameter information to obtain a health degree evaluation result of the battery to be charged.
5. The battery management method according to claim 4, wherein the performing consistency evaluation on the battery parameter information of the battery to be charged and the standard parameter information to obtain a health evaluation result of the battery to be charged comprises:
acquiring the difference value between the battery parameter information of the battery to be charged and the corresponding parameter in the standard parameter information;
and obtaining the health degree evaluation result of the battery to be charged according to the difference value and the preset weight of each parameter.
6. The battery management method according to claim 1, wherein determining the target management mode of the battery to be charged according to the health evaluation result comprises:
determining that the target management mode of the battery to be charged is a rated power charging and discharging mode under the condition that the health degree evaluation result represents that the health degree value of the battery to be charged is larger than a first numerical value;
under the condition that the health degree evaluation result represents that the health degree value of the battery to be charged is smaller than a first numerical value and larger than a second numerical value, determining that the target management mode of the battery to be charged is a de-rated charging and discharging mode;
and under the condition that the health degree evaluation result represents that the health degree value of the battery to be charged is smaller than a second numerical value, determining that the target management mode of the battery to be charged is a health early warning mode.
7. The battery management method according to claim 3, wherein after establishing the battery parameter model matching the corresponding battery model according to the battery parameter information of the battery sample in the corresponding battery sample library, the method further comprises:
and updating the battery parameter model according to the battery parameter information of the battery to be charged.
8. A battery management apparatus, the apparatus comprising:
the data acquisition module is used for acquiring battery parameter information of a battery to be charged connected to the charging equipment;
the evaluation module is used for obtaining the health degree evaluation result of the battery to be charged according to the battery parameter information;
the health management module is used for determining a target management mode of the battery to be charged according to the health degree evaluation result; the target management mode is one of a rated power charge-discharge mode, a derated charge-discharge mode and a health early warning mode;
and the data transmission module is used for sending the mode information reflecting the target management mode to the charging equipment for corresponding battery management.
9. A server, comprising a battery management apparatus according to claim 8, or,
the server comprising a memory for storing a program or instructions which, when executed by the processor, implement the steps of the method according to any one of claims 1-7, and a processor.
10. A battery management apparatus, comprising:
a server, the server being a server of claim 9,
the charging equipment comprises a communication module and a charging management module, the charging management module is connected with a data transmission interface which is arranged on the battery compartment and used for being connected with a battery to be charged so as to receive battery parameter information of the battery to be charged, and the communication module is used for transmitting the battery parameter information of the battery to be charged to a server;
the charging cabin body is internally provided with an accommodating space corresponding to a battery to be charged and a data transmission interface for connecting the battery to be charged.
11. The battery management apparatus of claim 10, wherein the charging apparatus is further configured to:
and detecting whether the data transmission interface is connected with a battery to be charged or not, and acquiring the battery parameter information of the battery to be charged under the condition that the data transmission interface is connected with the battery to be charged.
12. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by a processor, implement the steps of the method according to any one of claims 1-7.
CN202110731399.0A 2021-06-29 2021-06-29 Battery management method, device, equipment and server Pending CN113595174A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116080472A (en) * 2023-02-24 2023-05-09 深圳市爱丰达盛科技有限公司 Electric bicycle battery comprehensive monitoring method based on fire safety

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116080472A (en) * 2023-02-24 2023-05-09 深圳市爱丰达盛科技有限公司 Electric bicycle battery comprehensive monitoring method based on fire safety
CN116080472B (en) * 2023-02-24 2023-08-04 深圳市爱丰达盛科技有限公司 Electric bicycle battery comprehensive monitoring method based on fire safety

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