CN111833534B

CN111833534B - Battery charging method, battery charging device, electronic equipment and storage medium

Info

Publication number: CN111833534B
Application number: CN201910713171.1A
Authority: CN
Inventors: 张�杰
Original assignee: Beijing Qisheng Technology Co Ltd
Current assignee: Beijing Qisheng Technology Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2023-05-23
Anticipated expiration: 2039-08-02
Also published as: CN111833534A

Abstract

The application provides a battery charging method, a battery charging device, an electronic device and a storage medium, wherein the battery charging method comprises the following steps: when a charging instruction is received, the type and the current aging degree grade of the battery are obtained; based on the type and the current aging degree level, acquiring a charging strategy corresponding to the battery, wherein the charging strategy is used for indicating the charging pile to charge the battery according to the current corresponding to different charging time periods; and after the charging strategy corresponding to the battery is obtained, charging the battery based on the charging strategy. The safety of battery charging has been improved and battery life has been prolonged to this application.

Description

Battery charging method, battery charging device, electronic equipment and storage medium

Technical Field

The present invention relates to the field of electronic technologies, and in particular, to a charging method, a charging device, an electronic device, and a storage medium.

Background

With the attention of the current society to new energy and environmental protection industry, the sharing bicycle is taken as a public travel mode, is popular with the public more and more, solves the problem of difficult travel in the last kilometer, meets the travelling demands of most people, but the common sharing bicycle needs users to ride by foot, and is obviously inconvenient for long journey, so the sharing bicycle is generated.

The shared electric car is to rely on the battery on the electric car to provide helping hand, and in the use of electric car, the charge safety and the ageing speed of battery relate to the life of this shared bicycle, therefore how can improve charge safety and the life of electric car battery, it is very important in shared bicycle field.

Disclosure of Invention

In view of the foregoing, an object of the present application is to provide a battery charging method, a charging device, an electronic apparatus, and a storage medium, which improve the safety of battery charging and extend the service life of the battery.

In a first aspect, an embodiment of the present application provides a method for charging a battery, applied to a charging pile, where the battery is used to provide assistance to an electric car, including:

when a charging instruction is received, the type and the current aging degree grade of the battery are obtained;

based on the type and the current aging degree level, acquiring a charging strategy corresponding to the battery, wherein the charging strategy is used for indicating the charging pile to charge the battery according to the current corresponding to different charging time periods;

and after the charging strategy corresponding to the battery is obtained, charging the battery based on the charging strategy.

In some embodiments, the obtaining, based on the type and the current aging degree level, a charging policy corresponding to the battery includes:

and generating a charging strategy request based on the type and the current aging degree level, and sending the charging strategy request to a background server, so that the background server determines and sends a charging strategy corresponding to the battery to the charging pile based on the type and the current aging degree level in the charging strategy request.

In some embodiments, the charging method further comprises:

when the battery is charged based on the charging strategy, judging whether difference information exists between charging parameter information of the battery and charging parameter information corresponding to the charging strategy;

and if the alarm exists, alarming.

In some embodiments, the charge indication is received as follows:

and receiving the charging instruction generated by triggering the charging button by the user, or receiving a charging instruction which is sent by the user through the mobile terminal and is used for indicating charging.

In some embodiments, the obtaining the type and the current aging level of the battery includes:

Reading type information of the battery, and acquiring first charging parameter information and first charging and discharging time length of the type battery when the type battery is used for the first time;

acquiring second charging parameter information of the battery in the last charging process, a second charging and discharging duration corresponding to the last use, the current charging and discharging cycle times and the current total use duration;

and determining the current aging degree grade of the battery based on the first charging parameter information, the first charging and discharging time length, the second charging and discharging time length, the current charging and discharging cycle times and the current total use time length.

In some embodiments, the generating the current aging degree level of the battery based on the first charge parameter information, the first charge and discharge duration, the second charge parameter information, the second charge and discharge duration, the current charge and discharge cycle number, and the current total duration of use includes:

determining current charging parameter variation difference information corresponding to the battery based on the first charging parameter information and the second charging parameter information;

determining current charge-discharge variation difference information corresponding to the battery based on the first charge-discharge duration and the second charge-discharge duration;

And determining the current aging degree grade of the battery based on the current charging parameter variation difference information, the current charging and discharging cycle times, the current total use duration and the corresponding weight.

In some embodiments, the determining the current aging degree level of the battery based on the current charging parameter variation difference information, the current charging and discharging cycle number, the current total usage duration, and the respective corresponding weights includes:

determining a first score corresponding to the current charging parameter variation difference information based on the current charging parameter variation difference information and a pre-stored charging parameter score corresponding to the charging parameter variation difference; the method comprises the steps of,

determining a second score corresponding to the current charge-discharge variation difference information based on the current charge-discharge variation difference information and a charge-discharge variation difference value corresponding to a pre-stored charge-discharge variation difference; the method comprises the steps of,

determining a third score corresponding to the current charge-discharge cycle times based on the current charge-discharge cycle times and pre-stored charge-discharge cycle times scores corresponding to the charge-discharge cycle times; the method comprises the steps of,

Determining a fourth score corresponding to the current total duration based on the current total duration and a pre-stored total duration score corresponding to the total duration;

weighting and summing are carried out on the basis of the first score, the second score, the third score, the fourth score and weights corresponding to the scores, so that the current aging degree score corresponding to the battery is obtained;

and determining a current aging degree grade corresponding to the current aging degree score based on the current aging degree score corresponding to the battery.

In some embodiments, the charging method further comprises:

when a charging instruction is received, acquiring current environmental parameter information;

the obtaining the charging strategy corresponding to the battery based on the type and the current aging degree level comprises the following steps:

and acquiring a charging strategy corresponding to the battery based on the type, the current aging degree grade and the current environmental parameter information.

In some embodiments, the current environmental parameter information is obtained as follows:

the geographic position information of the battery is obtained through a positioning component;

acquiring a temperature value and a humidity value of a geographic position where the battery is located through a temperature and humidity acquisition component;

And taking the geographical position information, the temperature value, the humidity value and the current time information as the current environment parameter information.

In some embodiments, the charging method further comprises:

when the battery is charged based on the charging strategy, acquiring the current voltage value of each electric core in the battery in real time;

and judging whether the current voltage value of at least one battery cell reaches a set voltage threshold, if so, stopping charging the battery.

In a second aspect, an embodiment of the present application provides a method for charging a battery, which is applied to a background server, and includes:

when a charging strategy request sent by a charging pile is received, extracting the type of a battery and the current aging degree level of the battery in the charging strategy request;

determining a charging strategy corresponding to the charging strategy request based on the type of the battery and the current aging degree level of the battery, wherein the charging strategy is used for indicating the charging pile to charge the battery according to the current corresponding to different charging time periods;

and sending the charging strategy to the charging pile so that the charging pile charges the battery according to the charging strategy.

In a third aspect, embodiments of the present application provide a charging device for a battery, residing in a charging pile, the battery being configured to provide assistance to an electric vehicle, including:

the first acquisition module is used for acquiring the type and the current aging degree grade of the battery when receiving the charging instruction;

the second acquisition module is used for acquiring a charging strategy corresponding to the battery based on the type and the current aging degree grade, wherein the charging strategy is used for indicating the charging pile to charge the battery according to the current corresponding to different charging time periods;

and the charging module is used for charging the battery based on the charging strategy after the charging strategy corresponding to the battery is acquired.

In a fourth aspect, an embodiment of the present application provides a charging device for a battery, residing in a background server, including:

the extraction module is used for extracting the type of the battery and the current aging degree level of the battery in the charging strategy request when the charging strategy request sent by the charging pile is received;

the determining module is used for determining a charging strategy corresponding to the charging strategy request based on the type of the battery and the current aging degree level of the battery, and the charging strategy is used for indicating the charging pile to charge the battery according to the current corresponding to different charging time periods;

And the sending module is used for sending the charging strategy to the charging pile so that the charging pile charges the battery according to the charging strategy.

In a fifth aspect, embodiments of the present application provide an electronic device, including: a processor, a storage medium, and a bus, the storage medium storing machine-readable instructions executable by the processor, the processor in communication with the storage medium via the bus when the electronic device is running, the processor executing the machine-readable instructions to perform the steps of the charging method according to either of the first and second aspects.

In a sixth aspect, embodiments of the present application provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the charging method according to any one of the first and second aspects.

According to the battery charging method, when the charging instruction is received, the type of the battery and the current aging degree grade of the battery are obtained, then the charging strategy corresponding to the battery is obtained according to the type of the battery and the current aging degree grade of the battery, and after the charging strategy is obtained, the battery is charged according to the charging strategy, the charging strategy prescribes the current magnitudes corresponding to different charging time periods when the battery is charged, and the charging process is more consistent with the type of the battery and the current aging degree grade, so that the charging safety of the battery can be improved and the service life of the battery can be prolonged when the battery is charged by the charging strategy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a flowchart of a method for charging a battery according to an embodiment of the present application;

FIG. 2 is a flowchart of a method for obtaining a type and a current aging level of a battery according to an embodiment of the present application;

fig. 3 is a flowchart illustrating another method for charging a battery according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a battery charging device according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of another battery charging device according to an embodiment of the present disclosure;

fig. 6 shows a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 7 shows a schematic structural diagram of another electronic device according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it should be understood that the accompanying drawings in the present application are only for the purpose of illustration and description, and are not intended to limit the protection scope of the present application. In addition, it should be understood that the schematic drawings are not drawn to scale. A flowchart, as used in this application, illustrates operations implemented according to some embodiments of the present application. It should be understood that the operations of the flow diagrams may be implemented out of order and that steps without logical context may be performed in reverse order or concurrently. Moreover, one or more other operations may be added to the flow diagrams and one or more operations may be removed from the flow diagrams as directed by those skilled in the art.

In addition, the described embodiments are only some, but not all, of the embodiments of the present application. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.

In order to enable those skilled in the art to use the present application, in connection with a specific application scenario "charge method of a battery of a shared electric car", the following embodiments are given. It will be apparent to those having ordinary skill in the art that the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present application. Although the present application is described primarily in terms of a method of charging a battery of a shared electric vehicle, it should be understood that this is but one exemplary embodiment.

It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the presence of the features stated hereinafter, but not to exclude the addition of other features.

At present, with the use of electric vehicles including electric vehicles and power-assisted vehicles, charging piles are widely used, when the residual electric quantity of batteries in the electric vehicles is insufficient, users or staff can charge the electric vehicles through the charging piles, the types of the electric vehicles are various at the time, the service time is different, the corresponding types of the batteries can be various, and the aging degree of each electric vehicle is different, if the charged batteries are charged according to the same charging mode, the charging accidents can occur and the aging degree of the batteries can not be fully suitable, and therefore, the charging method, the charging device, the electronic equipment and the storage medium of the batteries are provided in the embodiment in the application.

Referring to fig. 1, a flowchart of a method for charging a battery according to an embodiment of the present application is shown, where the method may be performed by a charging pile or may be performed by a server of the charging pile, and a case where the method is performed by the charging pile is described first, and a specific performing process includes steps S101 to S103 as follows:

s101, when a charging instruction is received, the type and the current aging degree level of the battery are obtained.

Here, when a user or a worker of the electric car stops the electric car beside the charging pile for charging, the user or the worker can connect the battery of the electric car with the charging line of the charging pile, after connection, the charging instruction can be triggered by a button on the charging pile for indicating to start charging, and the charging instruction can also be generated by triggering a charging key in a charging Application (APP) on the mobile terminal, and then the mobile terminal generates the charging instruction for indicating charging and sends the charging instruction to the charging pile.

In this way, the charging pile can receive a charging instruction generated by triggering the charging button by the user, or receive a charging instruction sent by the user through the mobile terminal and used for indicating charging.

When receiving the charge instruction, the type and the current aging degree grade of the battery can be obtained, wherein the type can be determined by a manufacturer and a production batch, and the current aging degree grade of the battery can be determined by charging parameter information (battery temperature value), charge and discharge time length, charge and discharge cycle times and use time length of the battery in the charging process.

The optimal charging modes corresponding to the batteries with different types may not be the same, and the optimal charging modes corresponding to the batteries with different current aging degrees may not be the same. According to the embodiment of the application, the battery can be charged according to the optimal charging mode determined by the type of the battery and the current aging degree level, so that the charging speed can be increased, the abnormal influence on the aging degree of the battery can be reduced, and the charging safety is improved.

S102, based on the type and the current aging degree level, acquiring a charging strategy corresponding to the battery, wherein the charging strategy is used for indicating the charging pile to charge the battery according to the current corresponding to different charging time periods.

After the type and the current aging degree level of the battery are obtained, a charging strategy corresponding to the battery can be obtained according to the type and the current aging degree level, wherein the charging strategy corresponding to the battery is the optimal charging mode corresponding to the battery.

The charging policy corresponding to the battery may be queried in the charging policies corresponding to the batteries of different aging degree levels stored in the charging pile in advance, or may be obtained from a background server, and in this embodiment of the present application, the obtaining from the background server will be taken as an example, to describe in detail:

Specifically, based on the type and the current aging degree level, acquiring a charging strategy corresponding to the battery includes:

The charging policy request is used for requesting a charging policy corresponding to the battery, namely an optimal charging mode, to the background server, and when the background server receives the charging policy request, the background server determines the charging policy corresponding to the battery, namely the optimal charging mode corresponding to the battery according to the type of the battery and the current aging degree level contained in the charging policy request.

The charging strategy is used for indicating the charging pile to charge the battery according to the current values corresponding to different charging time periods, for example, if the charging process of the battery is divided into three charging time periods, the charging strategy is used for indicating to charge according to the current of A1 in the first charging time period, charge according to the current of A2 in the second charging time period and charge according to the current of A3 in the third charging time period.

Specifically, the charging strategies corresponding to the various types of batteries with different aging degree levels can be determined according to a large amount of charging data in advance and then stored, and the specific determining process is as follows:

(1) A sample library is built in advance, wherein the sample library comprises a plurality of types of batteries with different aging degrees, a plurality of charging strategies of each battery and charging results corresponding to each charging strategy;

(2) And determining the charging strategies corresponding to the batteries with different aging degree grades according to the batteries with different aging degrees of various types, the various charging strategies of each battery and the charging results corresponding to each charging strategy.

Specifically, the batteries in the sample library are a plurality of different types of battery packs, each type of battery pack further comprises a plurality of charging units, each charging unit in the same type of battery pack corresponds to the battery with different aging degree grades, and the aging degree grades of the batteries of the same charging unit are the same; each type of battery in the sample library corresponds to a set of charging strategies, each set of charging strategies including a plurality of charging strategies, each charging strategy specifying a charging current for a corresponding battery over a different charging period.

Each charging strategy comprises a plurality of preset charging time periods, the charging currents corresponding to the charging time periods are different, and the charging currents corresponding to the same charging time periods of different charging strategies are also different.

Specifically, before determining a plurality of charging time periods of the charging strategy, a total charging duration of the battery of the same type may be determined, where the total charging duration may be a predetermined average total charging duration of the battery of the same type, then the total charging duration is divided into a plurality of charging time periods, then according to a charging principle, a current magnitude of each charging time period is adjusted, and the current magnitude of each charging time period is adjusted multiple times, so as to obtain a plurality of charging strategies of the battery of the same type.

The sample library further comprises different charging results generated when the batteries with different aging degree grades in different types are charged according to each charging strategy, namely charging parameter information (such as a temperature value corresponding to the battery in each charging time period), a charging speed value (a speed value can be measured by the time length of charging completion) and the change degree of the aging degree grade of the battery after the charging is finished (the determining process of the aging degree grade of the battery will be described later), so that the optimal charging mode, namely the corresponding charging strategy, of each battery can be measured through the charging parameter information, the charging speed value and the change degree of the aging degree grade of each battery in the charging process.

And selecting a charging strategy with low battery temperature value, high charging speed and low change degree of the aging degree level of each battery in the sample library as a charging strategy corresponding to the battery in the charging process, and storing the charging strategy.

Specifically, the temperature value, the charging speed and the weight of the change degree of the aging degree level of the battery before and after charging can be set in advance, when a certain battery is charged according to different charging strategies, the temperature value, the charging speed and the change degree of the aging degree level of the battery corresponding to each charging strategy are obtained, then the three types of values are subjected to normalization and then weighted summation, namely the matching degree of each charging strategy and the battery is obtained, the charging strategy with the highest matching degree is taken as the charging strategy corresponding to the battery, and when normalization processing is carried out, the influence of unit and positive correlation or negative correlation is considered at the same time, and then weighted summation is carried out, so that the matching degree of each charging strategy and the battery is obtained; or the temperature value, the charging speed and the change degree of the aging degree grade of the battery are respectively assigned with score intervals in advance, then the score intervals are weighted and summed to obtain the matching degree of each charging strategy and the battery, and the charging strategy with the highest matching degree is used as the charging strategy corresponding to the battery.

After determining the charging strategies corresponding to each type of battery with different aging degree grades, storing according to the corresponding relation, finding the corresponding charging strategy of the battery according to the type of the battery contained in the charging strategy request and the current aging degree grade when receiving the charging strategy request sent by the charging pile, and then sending the charging strategy to the charging pile.

And S103, after the charging strategy corresponding to the battery is obtained, charging the battery based on the charging strategy.

After the charging pile obtains the optimal charging mode corresponding to the battery, the charging pile starts to charge according to the optimal charging mode, for example, the total average charging duration corresponding to the battery is 8 hours, if the optimal charging mode is that the charging pile charges according to the charging current of the A1 size in the first 1 hour, the charging pile charges according to the charging current of the A2 size in the 2 nd to 5 th hours, the charging pile charges according to the charging current of the A3 size in the 6 th to 7 th hours, and the charging pile charges the battery according to the charging current of the A4 size in the 8 th hour, and the charging pile charges the battery according to the charging currents of the A1, A2, A3 and A4 in sequence in the four charging time periods.

The following describes how the charging post obtains the type and the current aging level of the battery, as shown in fig. 2, specifically including the following steps S201 to S203:

S201, reading type information of a battery, and acquiring first charging parameter information and first charging and discharging duration of the battery of the type when the battery is used for the first time.

The type information of the battery can be the type information of the battery determined according to the identification code after the battery is connected with the charging wire of the charging pile and the charging pile reads the identification code, or can be the type information of the battery determined by the two-dimensional code reader installed on the charging pile, the two-dimensional code of the battery type is arranged on the electric car, and the charging pile reads the type information of the battery determined by the two-dimensional code on the electric car through the two-dimensional code reader.

The first charging parameter information mainly refers to a temperature value corresponding to each charging stage when the battery of the type is charged for the first time according to an optimal charging mode, and the first charging and discharging duration refers to a sum of a duration required by the battery of the type when the battery of the type is charged for the first time and a duration which can be used after the battery of the type is charged for the first time.

S202, second charging parameter information of the battery in the last charging process, a second charging and discharging duration corresponding to the last use, the current charging and discharging cycle times and the current total use duration are obtained.

Here, the second charging parameter information of the battery in the last charging process, that is, the battery temperature value corresponding to each charging time period of the battery in the last charging process, may be recorded and saved by the charging pile when the battery is charged last time; the second charging duration of the second charging duration corresponding to the last use can be recorded and stored when the charging pile charges the battery last time, the second discharging duration of the second charging duration can be recorded and stored in the use process of the electric car, the current charging and discharging cycle number can be the total current charging and discharging cycle number of the battery recorded by the electric car, and the current total use duration can be calculated according to the delivery time and the current time of the battery recorded in the type information of the battery.

S203, determining the current aging degree grade of the battery based on the first charging parameter information, the first charging and discharging time length, the second charging and discharging time length, the current charging and discharging cycle times and the current total using time length.

Since the degree of aging of the battery is relative to the new battery, the degree of aging of the battery is related to the first charge parameter information, the first charge-discharge time period, the second charge parameter information, the second charge-discharge time period, the current charge-discharge cycle number, and the current total time period used herein.

Specifically, in step S203, the current aging degree level of the battery is generated based on the first charging parameter information, the first charging and discharging duration, the second charging parameter information, the second charging and discharging duration, the current number of charging and discharging cycles, and the current total duration, including:

(1) And determining current charging parameter variation difference information corresponding to the battery based on the first charging parameter information and the second charging parameter information.

The difference between the second charging parameter information and the first charging parameter information corresponding to each charging period may be obtained, so as to obtain current charging parameter variation difference information corresponding to the battery in each charging period.

(2) And determining current charge-discharge variation difference information corresponding to the battery based on the first charge-discharge duration and the second charge-discharge duration.

The difference between the first charge-discharge time length and the second charge-discharge time length can be obtained, so as to obtain the corresponding current charge-discharge time length difference value of the battery.

(3) And determining the current aging degree grade of the battery based on the current charging parameter variation difference information, the current charging and discharging cycle times, the current total use duration and the corresponding weight.

The weights may be preconfigured, for example, the weights are large for the indexes with large influence on the aging degree, the weights are small for the indexes with small influence on the aging degree, and the weights corresponding to all the indexes are uniform.

Specifically, determining the current aging degree level of the battery based on the current charging parameter variation difference information, the current charging and discharging cycle number, the current total duration of use and the respective corresponding weights includes:

(1) Determining a first score corresponding to the current charging parameter variation difference information based on the current charging parameter variation difference information and a charging parameter score corresponding to the pre-stored charging parameter variation difference;

(2) Determining a second value corresponding to the current charge-discharge variation difference information based on the current charge-discharge variation difference information and a pre-stored charge-discharge variation difference value corresponding to the charge-discharge variation difference;

(3) Determining a third score corresponding to the current charge-discharge cycle times based on the current charge-discharge cycle times and the pre-stored charge-discharge cycle times scores corresponding to the charge-discharge cycle times;

(4) Determining a fourth score corresponding to the current total duration based on the current total duration and a pre-stored total duration score corresponding to the total duration;

(5) Based on the first score, the second score, the third score, the fourth score and the weights corresponding to the scores, carrying out weighted summation to obtain the current aging degree score corresponding to the battery;

(6) And determining the current aging degree grade corresponding to the current aging degree score based on the current aging degree score corresponding to the battery.

After obtaining the battery temperature differences corresponding to each charging time period, averaging the battery temperature differences to obtain an average battery temperature difference, and obtaining a first score corresponding to the average battery temperature difference of the battery according to a mapping relation between the average battery temperature difference and the score, wherein the mapping relation is pre-stored; according to the current charge-discharge time length difference value of the battery, a mapping relation between the pre-stored charge-discharge time length difference value and the score is obtained, a second score corresponding to the current charge-discharge time length difference value of the battery is obtained, and the determination methods of the third score and the fourth score are similar and are not repeated herein.

And then, carrying out weighted summation on the first score to the fourth score according to preset weight to obtain the current aging degree score corresponding to the battery, so that the current aging degree grade corresponding to the current aging degree score can be determined according to the grade to which the current aging degree score belongs.

When the charging pile receives the charging instruction, besides the current aging degree grade of the battery is obtained in the above manner, the staff can directly test the current aging degree grade of the battery, then the current aging degree grade of the battery is sent to the charging pile through the mobile terminal, and the testing method of the staff can be tested by using the existing testing tool, which is not repeated here.

Considering that the optimal charging mode of the battery is related to the current environment in addition to the type of the battery and the current aging degree level of the battery, in another embodiment, the charging method of the battery further includes:

and when receiving the charging instruction, acquiring current environment parameter information.

Specifically, the charging stake may obtain current environmental parameter information in the following manner:

(1) The method comprises the steps of obtaining geographic position information of a battery through a positioning component;

(2) Acquiring a temperature value and a humidity value of a geographic position where the battery is positioned through a temperature and humidity acquisition component;

(3) And taking the geographical position information, the temperature value, the humidity value and the current time information as the current environment parameter information.

The positioning component can be a component for positioning based on a positioning technology such as a global positioning system (Global Positioning System, GPS), a global navigation satellite system (Global Navigation Satellite System, GLONASS), a COMPASS navigation system (COMPASS), a Galileo positioning system and the like, and the determined geographic position information of the battery is mainly used for determining the region of the battery (charging pile).

The temperature and humidity acquisition component can comprise a temperature sensor and a humidity sensor, wherein the current time information is mainly used for determining the current season, and then the obtained current environment parameter information comprises the region of the charging pile, the current season, the current temperature value and the current humidity value.

In step S102, based on the type and the current aging degree level, a charging policy corresponding to the battery is obtained, including:

Similarly, the charging policy corresponding to the battery may be obtained by searching for the charging policy corresponding to the battery of different types and multiple aging degree levels under the information of various environmental parameters stored in the charging pile in advance, or may be obtained from a background server.

Similarly, under various environmental parameter information, the charging strategies corresponding to the batteries with different types and multiple aging degree levels can be stored after being determined according to a large amount of charging data in advance, that is, on the basis of determining the charging strategies based on the types and the aging degree levels, the influence of the environment is added, for example, the batteries in the sample library and the charging strategies can be respectively set in different environments to be charged, so that different charging results are obtained, and then the charging strategies corresponding to the batteries with different types and different aging degree levels under each environment are judged according to the charging results, and the specific process is not repeated here.

In order to prevent unexpected situations, in an embodiment, the method for charging a battery in the embodiment of the present application further includes:

(1) When the battery is charged based on the charging strategy, judging whether difference information exists between charging parameter information of the battery and charging parameter information corresponding to the charging strategy;

(2) And if the alarm exists, alarming.

If the charging parameter information is a battery temperature value, the obtained charging strategy corresponding to the battery, that is, the battery temperature values corresponding to the four charging time periods in the optimal charging mode are respectively T1, T2, T3 and T4, and if in the process of actually charging the battery based on the charging strategy, whether the battery temperature value corresponding to the first charging time period is T1, whether the battery temperature value corresponding to the second charging time period is T2, whether the battery temperature value corresponding to the third charging time period is T3 and whether the battery temperature value corresponding to the fourth charging time period is T4 are sequentially determined, if the battery temperature value of which charging time period is different from the battery temperature value of the charging time period corresponding to the charging strategy, for example, the battery temperature value of the first charging time period is greater than T1, an alarm can be given.

In order to further improve the safety of charging, after determining that difference information exists, judging whether the difference information exceeds a set difference threshold, if yes, stopping charging the battery after alarming, for example, if the difference between the battery temperature value and T1 in the first charging period is greater than the set difference threshold, stopping charging after alarming.

At present, a plurality of battery cells are generally arranged in a battery of an electric car, and in the charging process of each battery cell, the corresponding voltages of the battery cells may not be identical, so as to ensure the safety of the battery in the charging process, the charging method provided by the embodiment of the application further comprises the following steps:

(1) When the battery is charged based on a charging strategy, acquiring the current voltage value of each electric core in the battery in real time;

(2) And judging whether the current voltage value of at least one battery cell reaches a set voltage threshold, if so, stopping charging the battery.

In the charging process, the current voltage value of each electric core in the battery is obtained in real time, for example, the battery comprises 4 electric cores, and when the current voltage value of the 2 nd electric core is detected to reach the corresponding set voltage threshold value when the electric core is fully charged in the charging process, the battery is stopped from being charged even though the current voltage values of other electric cores do not reach the set voltage threshold value, so that the 2 nd electric core is prevented from being burnt.

The embodiment of the application also provides a battery charging method, which is applied to a background server, as shown in fig. 3, and comprises the following steps S301 to S303:

s301, when a charging strategy request sent by a charging pile is received, extracting the type of a battery and the current aging degree level of the battery in the charging strategy request;

s302, determining a charging strategy corresponding to a charging strategy request based on the type of the battery and the current aging degree level of the battery, wherein the charging strategy is used for indicating a charging pile to charge the battery according to the current corresponding to different charging time periods;

and S303, sending the charging strategy to the charging pile so that the charging pile charges the battery according to the charging strategy.

If the charging pile obtains the charging policy corresponding to the battery through the background server, the operation performed by the background server, that is, when the background server receives the charging policy request sent by the charging pile, firstly extracts the type of the battery and the current aging degree of the battery in the charging policy request, then, based on the type and the current aging degree, the charging policy corresponding to the battery in the charging policy request can be queried in the pre-stored charging policies corresponding to the batteries with different types and different aging degrees, and then, the charging policy corresponding to the batteries with different types and different aging degrees is sent to the charging pile.

In addition, in one embodiment, the charging method further includes:

(1) When a charging strategy request sent by a charging pile is received, extracting the type of a battery in the charging strategy request, the current aging degree grade of the battery and the current environmental parameter information of the charging pile;

(2) Determining a charging strategy corresponding to a charging strategy request based on the type of the battery, the current aging degree level of the battery and the current environmental parameter information of the charging pile, wherein the charging strategy is used for indicating the charging pile to charge the battery according to the current corresponding to different charging time periods;

(3) And sending the charging strategy to the charging pile so that the charging pile charges the battery according to the charging strategy.

The background server needs to store charging strategies corresponding to the batteries with different aging degree grades under various environmental parameter information in advance, and when a charging strategy request is received, the charging strategy corresponding to the battery is determined according to the current environmental parameter information, the type of the battery and the current aging degree grade of the battery.

Based on the same inventive concept, the embodiment of the present application further provides a battery charging device corresponding to the battery charging method, and since the principle of solving the problem by the device in the embodiment of the present application is similar to that of the charging method in the embodiment of the present application, the implementation of the device may refer to the implementation of the method, and the repetition is omitted.

Referring to fig. 4, a schematic diagram of a charging device 400 of a battery, where the charging device resides in a charging pile, and the battery is used to provide assistance to a trolley, the charging device includes: a first acquisition module 401, a second acquisition module 402, and a charging module 403.

The first obtaining module 401 is configured to obtain, when receiving a charging instruction, a type of a battery and a current aging degree level;

a second obtaining module 402, configured to obtain a charging policy corresponding to a battery based on a type and a current aging level, where the charging policy is used to instruct a charging pile to charge the battery according to current magnitudes corresponding to different charging time periods;

and the charging module 403 is configured to charge the battery based on the charging policy after obtaining the charging policy corresponding to the battery.

In one embodiment, the second obtaining module 402 is specifically configured to:

and generating a charging strategy request based on the type and the current aging degree level, and sending the charging strategy request to a background server, so that the background server determines and sends a charging strategy corresponding to the battery to the charging pile based on the type in the charging strategy request and the current aging degree level.

In one embodiment, the charging module 403 is further configured to:

and if the alarm exists, alarming.

In one embodiment, the first acquisition module 401 receives the charging indication as follows:

and receiving a charging instruction generated by triggering a charging button by a user, or receiving a charging instruction which is sent by the user through the mobile terminal and is used for indicating charging.

In one embodiment, the first obtaining module 401 is specifically configured to:

reading type information of a battery, and acquiring first charging parameter information and first charging and discharging duration of the type battery when the type battery is used for the first time;

and generating the current aging degree grade of the battery based on the first charging parameter information, the first charging and discharging duration, the second charging and discharging duration, the current charging and discharging cycle times and the current total use duration.

determining a first score corresponding to the current charging parameter variation difference information based on the current charging parameter variation difference information and a charging parameter score corresponding to the pre-stored charging parameter variation difference; the method comprises the steps of,

determining a second value corresponding to the current charge-discharge variation difference information based on the current charge-discharge variation difference information and a pre-stored charge-discharge variation difference value corresponding to the charge-discharge variation difference; the method comprises the steps of,

determining a third score corresponding to the current charge-discharge cycle times based on the current charge-discharge cycle times and the pre-stored charge-discharge cycle times scores corresponding to the charge-discharge cycle times; the method comprises the steps of,

based on the first score, the second score, the third score, the fourth score and the weights corresponding to the scores, carrying out weighted summation to obtain the current aging degree score corresponding to the battery;

and determining the current aging degree grade corresponding to the current aging degree score based on the current aging degree score corresponding to the battery.

In one embodiment, the first obtaining module 401 is further configured to:

the second obtaining module 402 is further configured to obtain a charging policy corresponding to the battery based on the type, the current aging level, and the current environmental parameter information.

In one embodiment, the first obtaining module 401 obtains the current environmental parameter information in the following manner:

the method comprises the steps of obtaining geographic position information of a battery through a positioning component;

acquiring a temperature value and a humidity value of a geographic position where the battery is positioned through a temperature and humidity acquisition component;

In one embodiment, the charging module 403 is further configured to:

when the battery is charged based on a charging strategy, acquiring the current voltage value of each electric core in the battery in real time;

Referring to fig. 5, a schematic diagram of a charging device 500 for a battery according to an embodiment of the present application is shown, where the charging device resides in a background server, and includes an extracting module 501, a determining module 502, and a sending module 503:

the extracting module 501 is configured to extract a type of a battery and a current aging degree level of the battery in a charging policy request when receiving the charging policy request sent by the charging pile;

the determining module 502 is configured to determine a charging policy corresponding to a charging policy request based on a type of a battery and a current aging level of the battery, where the charging policy is used to instruct a charging pile to charge the battery according to current magnitudes corresponding to different charging time periods;

and the sending module 503 is configured to send the charging policy to the charging post, so that the charging post charges the battery according to the charging policy.

According to the battery charging device, the charging strategy corresponding to the battery can be obtained according to the type of the battery and the current aging degree level of the battery, and after the charging strategy is obtained, the battery is charged according to the charging strategy, the charging strategy prescribes the current corresponding to different charging time periods when the battery is charged, and the charging process is more consistent with the type of the battery and the current aging degree, so that the charging safety of the battery can be improved and the service life of the battery can be prolonged when the battery is charged by the charging strategy.

The process flow of each module in the apparatus and the interaction flow between the modules may be described with reference to the related descriptions in the above method embodiments, which are not described in detail herein.

The embodiment of the application also provides an electronic device, which may be a charging pile or a background server, and when the electronic device is a charging pile, as shown in fig. 6, the structural schematic diagram of the electronic device 600 provided in the embodiment of the application includes: a processor 601, a storage medium 602, and a bus 603. The storage medium 602 stores machine-readable instructions executable by the processor 601 (e.g., execution instructions corresponding to the first acquisition module 401, the second acquisition module 402, the charging module 403, etc. in the apparatus of fig. 4), when the electronic device 600 is running, the processor 601 communicates with the storage medium 602 through the bus 603, and when the machine-readable instructions are executed by the processor 601, the following process is performed:

In a possible implementation manner, the instructions executed by the processor 601 specifically include:

In a possible implementation manner, the instructions executed by the processor 601 further include:

and if the alarm exists, alarming.

When the electronic device is a background server, as shown in fig. 7, a schematic structural diagram of the electronic device 700 provided in the embodiment of the present application includes: a processor 701, a storage medium 702, and a bus 703. The storage medium 702 stores machine-readable instructions executable by the processor 701 (e.g., execution instructions corresponding to the extracting module 501, the determining module 502, and the sending module 503 in the apparatus of fig. 5), when the electronic device 700 is running, the processor 701 communicates with the storage medium 702 through the bus 703, and when the machine-readable instructions are executed by the processor 701, the following process is performed:

determining a charging strategy corresponding to a charging strategy request based on the type of the battery and the current aging degree level of the battery, wherein the charging strategy is used for indicating a charging pile to charge the battery according to the current corresponding to different charging time periods;

The embodiments of the present application also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the charging method described above.

Specifically, the storage medium can be a general-purpose storage medium, such as a mobile magnetic disk, a hard disk, or the like, and when the computer program on the storage medium is executed, the above-described charging method can be performed, so as to improve the safety of battery charging and prolong the service life of the battery.

It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described system and apparatus may refer to corresponding procedures in the method embodiments, which are not described in detail in this application. In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, and the division of the modules is merely a logical function division, and there may be additional divisions when actually implemented, and for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, indirect coupling or communication connection of devices or modules, electrical, mechanical, or other form.

The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer readable storage medium executable by a processor. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes or substitutions are covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of charging a battery for providing assistance to an electric car, applied to a charging pile, comprising:

after a charging strategy corresponding to the battery is obtained, charging the battery based on the charging strategy;

the obtaining the type and the current aging degree grade of the battery comprises the following steps:

2. The charging method according to claim 1, wherein the obtaining a charging policy corresponding to the battery based on the type and the current aging degree level includes:

3. The charging method according to claim 1, characterized in that the charging method further comprises:

And if the alarm exists, alarming.

4. The charging method according to claim 1, characterized in that the charging indication is received in the following manner:

5. The charging method according to claim 1, wherein the determining the current aging degree level of the battery based on the first charging parameter information, the first charging and discharging duration, the second charging parameter information, the second charging and discharging duration, the current number of charging and discharging cycles, and the current total duration of use includes:

6. The charging method according to claim 5, wherein the determining the current aging degree level of the battery based on the current charging parameter variation difference information, the current charging and discharging variation difference information, the current number of charging and discharging cycles, the current total duration of use, and the respective corresponding weights includes:

7. The charging method according to claim 1, characterized in that the charging method further comprises:

8. The charging method according to claim 7, wherein the current environmental parameter information is acquired in the following manner:

9. The charging method according to claim 1, characterized in that the charging method further comprises:

10. A battery charging method applied to a background server, comprising:

sending the charging strategy to the charging pile so that the charging pile charges the battery according to the charging strategy;

the current aging degree grade is determined based on first charging parameter information and first charging and discharging duration of the battery in initial use, second charging parameter information in the last charging process of the battery, corresponding second charging and discharging duration in last use, current charging and discharging cycle times and current total use duration.

11. A charging device for a battery residing in a charging stake, the battery being for providing assistance to an electric vehicle, comprising:

the charging module is used for charging the battery based on the charging strategy after the charging strategy corresponding to the battery is obtained;

the first obtaining module is specifically configured to read type information of the battery, and obtain first charging parameter information and first charging and discharging duration of the type of battery when the type of battery is used for the first time; acquiring second charging parameter information of the battery in the last charging process, a second charging and discharging duration corresponding to the last use, the current charging and discharging cycle times and the current total use duration; and determining the current aging degree grade of the battery based on the first charging parameter information, the first charging and discharging time length, the second charging and discharging time length, the current charging and discharging cycle times and the current total use time length.

12. A battery charging apparatus residing in a background server, comprising:

the sending module is used for sending the charging strategy to the charging pile so that the charging pile charges the battery according to the charging strategy;

13. An electronic device, comprising: a processor, a storage medium and a bus, the storage medium storing machine-readable instructions executable by the processor, the processor and the storage medium communicating over the bus when the electronic device is running, the processor executing the machine-readable instructions to perform the steps of the charging method according to any one of claims 1 to 10.

14. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, performs the steps of the charging method according to any one of claims 1 to 10.