CN111833534A

CN111833534A - Battery charging method, charging device, electronic equipment and storage medium

Info

Publication number: CN111833534A
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: 2020-10-27
Anticipated expiration: 2039-08-02
Also published as: CN111833534B

Abstract

The application provides a battery charging method, a charging device, an electronic device and a storage medium, wherein the charging method comprises the following steps: when a charging instruction is received, acquiring the type and the current aging degree grade of the battery; 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 current sizes corresponding to different charging time periods; and after the charging strategy corresponding to the battery is obtained, the battery is charged based on the charging strategy. The application improves the safety of battery charging and prolongs the service life of the battery.

Description

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

Technical Field

The present disclosure 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 concern of the current society on new energy and environmental protection career, the shared bicycle is more and more popular with the public as a public trip mode, the problem that the trip in the last kilometer is difficult is solved, the driving requirements of most people are met, but the common shared bicycle needs a user to ride on the bicycle by foot, and obviously, the shared bicycle is not convenient for a long distance, so that the shared trolley bus is suitable for transportation.

In the shared electric vehicle, the assistance is provided by the battery on the electric vehicle, and in the using process of the electric vehicle, the charging safety and the aging speed of the battery are related to the service life of the battery of the shared single vehicle, so how to improve the charging safety and the service life of the battery of the electric vehicle is very important in the field of the shared single vehicle.

Disclosure of Invention

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

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

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

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 current sizes corresponding to different charging time periods;

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

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

and generating a charging strategy request based on the type and the current aging degree grade, 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 grade 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 the charging parameter information of the battery and the charging parameter information corresponding to the charging strategy;

and if so, alarming.

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

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

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

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

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

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 parameter information, the second charging and discharging time length, the current charging and discharging cycle times and the current total using time length.

In some embodiments, the generating the current aging level of the battery based on the first charging parameter information, the first charging and discharging time period, the second charging parameter information, the second charging and discharging time period, the current number of charging and discharging cycles, and the current total usage time period 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 charging and discharging variation difference information corresponding to the battery based on the first charging and discharging duration and the second charging and discharging 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 using time length and respective corresponding weights.

In some embodiments, the determining the current aging degree grade of the battery based on the current charging parameter variation difference information, the current charging and discharging cycle number, the current total using time length and 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; and the number of the first and second groups,

determining a second score corresponding to the current charge-discharge change difference information based on the current charge-discharge change difference information and a pre-stored charge-discharge change difference value corresponding to the charge-discharge change difference; and the number of the first and second groups,

determining a third score corresponding to the current charge-discharge cycle number based on the current charge-discharge cycle number and a pre-stored charge-discharge cycle number score corresponding to the charge-discharge cycle number; and the number of the first and second groups,

determining a fourth score corresponding to the current total using time length based on the current total using time length and a pre-stored total using time length score corresponding to the total using time length;

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

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 of the charging strategy corresponding to the battery based on the type and the current aging degree grade includes:

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

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

acquiring geographical position information of the battery through a positioning component;

acquiring a temperature value and a humidity value of a geographical 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 environmental parameter information.

In some embodiments, the charging method further comprises:

when the battery is charged based on the charging strategy, the current voltage value of each battery cell in the battery is acquired in real time;

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

In a second aspect, an embodiment of the present application provides a battery charging method, 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 grade 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 grade of the battery, wherein the charging strategy is used for indicating the charging pile to charge the battery according to the current magnitude 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, an embodiment of the present application provides a charging device for a battery, which resides 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 a charging instruction is received;

the second obtaining module is used for obtaining a charging strategy corresponding to the battery based on the type and the current aging degree grade, and the charging strategy is used for indicating the charging pile to charge the battery according to the current magnitude 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 obtained.

In a fourth aspect, an embodiment of the present application provides a charging apparatus for a battery, which resides in a backend server, including:

the charging device comprises an extraction module, a charging module and a control module, wherein the extraction module is used for extracting the type of a battery and the current aging degree grade of the battery in a charging strategy request when the charging strategy request sent by a 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 grade of the battery, wherein the charging strategy is used for indicating the charging pile to charge the battery according to the current magnitude 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, an embodiment of the present application provides an electronic device, including: a processor, a storage medium and a bus, wherein the storage medium stores machine-readable instructions executable by the processor, when the electronic device runs, the processor and the storage medium communicate through the bus, and the processor executes the machine-readable instructions to perform the steps of the charging method according to any one of the first aspect and the second aspect.

In a sixth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to perform the steps of the charging method according to any one of the first and second aspects.

According to the battery charging method provided by the embodiment of the application, when a charging instruction is received, the type of the battery and the current aging degree grade of the battery are firstly 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 specifies the current sizes corresponding to different charging time periods when the battery is charged, and the charging process is more consistent with the type and the current aging degree grade of the battery, so that when the battery is charged according to the charging strategy, the charging safety of the battery can be improved, and the service life of the battery can be prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a flowchart illustrating a method for charging a battery according to an embodiment of the present disclosure;

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

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

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

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

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

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

Detailed Description

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, 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 should be understood that the drawings in the present application are for illustrative and descriptive purposes only and are not used to limit the scope of protection of the present application. Additionally, it should be understood that the schematic drawings are not necessarily drawn to scale. The flowcharts used in this application illustrate operations implemented according to some embodiments of the present application. It should be understood that the operations of the flow diagrams may be performed out of order, and steps without logical context may be performed in reverse order or simultaneously. One skilled in the art, under the guidance of this application, may add one or more other operations to, or remove one or more operations from, the flowchart.

In addition, the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

In order to enable those skilled in the art to use the present disclosure, the following embodiments are given in conjunction with a specific application scenario "method of charging a battery of a shared electric train". It will be apparent to those skilled 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 application. Although the present application is described primarily in the context of a method of charging a battery of a shared electric vehicle, it should be understood that this is merely one exemplary embodiment.

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

At present, as electric vehicles, including electric vehicles and power-assisted vehicles, are widely used, charging piles are also used, when the remaining capacity of batteries in the electric vehicles is insufficient, users or workers can charge the electric vehicles through the charging piles, the types of the electric vehicles are various and the use time is different, the types of the corresponding batteries are also possibly various, the aging degree of each electric vehicle is different, if the batteries for receiving charging are charged according to the same charging mode, the charging method is not completely applicable, thus charging accidents can occur and the aging degree of the batteries is not normally influenced in the charging process.

Referring to fig. 1, a schematic flow chart of a method for charging a battery according to an embodiment of the present disclosure is shown, where the method may be executed by a charging pile or a server of the charging pile, and first, a case that the method is executed by the charging pile is described, where the specific execution process includes the following steps S101 to S103:

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

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

Therefore, the charging pile can receive a charging instruction generated by triggering the charging button by a user, or receive a charging instruction which is sent by the user through the mobile terminal and used for instructing charging.

When receiving a charging instruction, the type and the current aging degree grade of the battery can be obtained, wherein the type can be determined by manufacturers and production batches, and the current aging degree grade of the battery can be determined by charging parameter information (battery temperature value), charging and discharging duration, charging and discharging cycle times and use duration of the battery in the charging process.

Different types of batteries may have different optimal charging modes, and batteries with different aging degrees may have different optimal charging modes. The battery can be charged in the best charging mode determined according to the type and the current aging degree grade of the battery, so that the charging speed can be increased, abnormal influence on the aging degree of the battery can be reduced, and the charging safety is improved.

And S102, 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 magnitude corresponding to different charging time periods.

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

Here, the obtaining of the charging policy corresponding to the battery may be inquiring in the charging policies corresponding to various types of batteries with different aging degree levels, which are stored in the charging pile in advance, or may be obtained from a background server, and the embodiment of the present application will be described in detail by taking the obtaining from the background server as an example:

specifically, the obtaining of the charging strategy corresponding to the battery based on the type and the current aging degree level includes:

and generating a charging strategy request based on the type and the current aging degree grade, and sending the charging strategy request to the 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 grade in the charging strategy request.

The charging policy request is used to request the background server for a charging policy corresponding to the battery, that is, an optimal charging manner, and when receiving the charging policy request, the background server determines the charging policy corresponding to the battery, that is, the optimal charging manner corresponding to the battery, according to the type of the battery and the current aging degree level included in the charging policy request.

The charging strategy is used for instructing the charging post to charge the battery according to the current magnitude 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 instructing 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 in advance according to a large amount of charging data and then stored, and the specific determination process is as follows:

(1) a sample library is constructed 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 a charging result corresponding to each charging strategy;

(2) and determining the charging strategies corresponding to the batteries with different aging degrees of each type according to the batteries with different aging degrees, the charging strategies of each battery and the charging results corresponding to each charging strategy.

Specifically, the batteries in the sample library are battery packs of different types, each battery pack of the type further comprises a plurality of charging units, each charging unit in the battery pack of the same type respectively corresponds to batteries 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 pack in the sample library corresponds to a group of charging strategies, each group of charging strategies comprises a plurality of charging strategies, and each charging strategy specifies the charging current of the corresponding battery in different charging time periods.

Here, each charging strategy includes a plurality of preset charging time periods, the magnitude of the charging current corresponding to each charging time period is different, and the charging currents corresponding to the same charging time periods of different charging strategies are different.

Specifically, before determining a plurality of charging time periods of the charging strategy, the total charging time period of the batteries of the same type may be determined, where the total charging time period may be a predetermined average total charging time period of the batteries of the same type, then the total charging time period is divided into a plurality of charging time periods, then according to the charging principle, the current magnitude of each charging time period is adjusted, and the current magnitude of each charging time period is adjusted for a plurality of times, so that a plurality of charging strategies of the battery packs of the same type are obtained.

The sample library further includes different charging results generated when the different types of batteries with different aging degree grades are charged according to the charging strategies, that is, charging parameter information (for example, temperature values corresponding to the batteries in the charging periods), charging speed values (speed values can be measured by the time length of charging completion) in the charging process of each battery, and the change degree of the aging degree grade of the battery after charging is completed (wherein the determination process of the aging degree grade of the battery will be described later), so that the optimal charging mode, that is, the corresponding charging strategy, of each battery can be measured by the charging parameter information, the charging speed values and the change degree of the aging degree grade of each battery in the charging process.

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

Specifically, a temperature value and a charging speed of a battery in a charging process and a weight of a change degree of an aging degree grade of the battery before and after charging can be preset, when a certain battery is charged according to different charging strategies, a temperature value and a charging speed of the battery corresponding to each charging strategy and a change degree of the aging degree grade of the battery are obtained, then the three values are normalized and weighted and summed, so that a matching degree of each charging strategy and the battery is obtained, the charging strategy with the highest matching degree is used as the charging strategy corresponding to the battery, when normalization processing is carried out, influence of unit sum positive correlation or negative correlation is simultaneously considered, then weighted and summed, so that a matching degree of each charging strategy and the battery is obtained; or distributing scores to the temperature value of the battery, the charging speed and the score intervals to which the change degrees of the aging degree grades of the battery belong in advance, then carrying out weighted summation on the scores to obtain the matching degree of each charging strategy and the battery, and taking the charging strategy with the highest matching degree as the charging strategy corresponding to the battery.

After the charging strategies corresponding to the batteries of each type and different aging degree grades are determined, the charging strategies are stored according to the corresponding relations, when a charging strategy request sent by the charging pile is received, the charging strategies corresponding to the batteries can be found according to the types of the batteries contained in the charging strategy request and the current aging degree grades, and then the charging strategies are sent to the charging pile.

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

After the charging pile acquires the optimal charging mode corresponding to the battery, the charging pile starts to charge according to the optimal charging mode, for example, the average total charging time corresponding to the battery is 8 hours, if the optimal charging mode is that the charging is performed according to the charging current with the size of A1 in the first 1 hour, the charging is performed according to the charging current with the size of A2 in the second 2-5 hours, the charging is performed according to the charging current with the size of A3 in the first 6-7 hours, and the charging is performed according to the charging current with the size of A4 in the third 8 hour, the charging pile sequentially charges the battery according to the charging currents with the sizes of A1, A2, A3 and A4 in the four charging time periods.

How to acquire the type and the current aging degree grade of the battery by the charging pile is specifically described below, and as shown in fig. 2, the method specifically includes the following steps S201 to S203:

s201, reading type information of the battery, and acquiring first charging parameter information and first charging and discharging duration of the battery in the type when the battery is used for the first time.

The type information of the battery can be that after the battery is connected with a charging wire of a charging pile, the battery sends an identification code of the battery to the charging pile, after the identification code is read by the charging pile, the type information of the battery determined according to the identification code is obtained, or a two-dimensional code reader is installed on the charging pile, a 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 according to the optimal charging mode for the first time, and the first charging and discharging time length refers to the sum of the time length required when the battery of the type is charged fully for the first time and the time length which can be used after the battery is charged fully for the first time.

S202, second charging parameter information of the battery in the last charging process, a second charging and discharging time length corresponding to the last use, the current charging and discharging cycle number and the current total use time length 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 stored by the charging pile when the charging pile charges the battery last time; the second charging duration of the second charging and discharging duration corresponding to the last use may be recorded and stored by the charging pile when the battery is charged last time, the second discharging duration of the second charging and discharging duration may be recorded and stored by the electric car in the use process, the current charging and discharging cycle number may be the total charging and discharging cycle number from the battery recorded by the electric car to the present, and the total current use duration may be calculated according to the factory 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 parameter information, the second charging and discharging time length, the current charging and discharging cycle number and the current total using time length.

Since the degree of aging of the battery is relative to that of a new battery, the degree of aging of the battery is related to the first charge parameter information, the first charge and discharge time period, the second charge parameter information, the second charge and discharge time period, the current number of charge and discharge cycles, and the current total use time period herein.

Specifically, in step S203, generating a 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 parameter information, the second charging and discharging time length, the current charging and discharging cycle number, and the current total using time length includes:

(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.

Here, the second charging parameter information and the first charging parameter information corresponding to each charging time period may be subtracted to obtain current charging parameter variation difference information corresponding to the battery in each charging time period, and if the charging time periods include four charging time periods, the battery temperature difference value in each charging time period in the four charging time periods may be obtained here.

(2) And determining current charging and discharging change difference information corresponding to the battery based on the first charging and discharging time length and the second charging and discharging time length.

Here, the difference between the first charge-discharge time period and the second charge-discharge time period may be obtained to obtain a current charge-discharge time period difference corresponding to 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 using duration and the respective corresponding weights.

The weight here may be configured in advance, for example, an index having a large influence on the degree of aging may have a large corresponding weight, an index having a small influence on the degree of aging may have a small corresponding weight, and the weights corresponding to all the indexes may be the same.

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

(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 pre-stored charging parameter score corresponding to the charging parameter variation difference;

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

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

(4) determining a fourth score corresponding to the current total using time length based on the current total using time length and a pre-stored total using time length score corresponding to the total using time length;

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

(6) 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.

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

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

When charging pile receives a charging instruction, besides obtaining the current aging degree grade of the battery according to the above mode, a worker can directly test the current aging degree grade of the battery, and then sends the current aging degree grade of the battery to charging pile through mobile terminal.

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

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

Specifically, the charging pile can acquire the current environmental parameter information in the following manner:

(1) acquiring geographical position information of the battery through a positioning component;

(2) acquiring a temperature value and a humidity value of a geographical position where the battery is located 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 may be a component that performs Positioning based on Positioning technologies such as a Global Positioning System (GPS), a Global Navigation Satellite System (GLONASS), a COMPASS Navigation System (COMPASS), and a galileo Positioning System, and the determined geographical 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, current time information is mainly used for determining the current season, and then the obtained current environmental parameter information comprises the region of the charging pile, the current season, the current temperature value and the current humidity value.

In step S102, obtaining a charging strategy corresponding to the battery based on the type and the current aging degree level includes:

Similarly, the charging policy corresponding to the battery may be queried in the charging policies corresponding to the batteries with different types and different aging degree levels under various types of environmental parameter information pre-stored in the charging pile, or may be obtained from a background server.

Similarly, under various types of environment parameter information, the charging strategies corresponding to the batteries with different types and various aging degree grades may be determined in advance according to a large amount of charging data and then stored, that is, on the basis of determining the charging strategy based on the type and the aging degree grade, and in addition, the influence of the environment is added, for example, the batteries and the charging strategies in the sample library may be respectively set in different environments for charging, so as to obtain different charging results, and then the charging strategies corresponding to the batteries with various types and different aging degree grades in each environment are determined according to the charging results, and the specific process is not described herein again.

In order to prevent an unexpected situation, when a battery is charged based on a charging strategy, although the charging strategy is an optimal charging manner corresponding to the battery, in an embodiment, the charging method of the 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 the charging parameter information of the battery and the charging parameter information corresponding to the charging strategy;

(2) and if so, alarming.

If the charging parameter information is a battery temperature value, the acquired charging strategies 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, if the battery temperature value corresponding to the first charging time period is T1, the battery temperature value corresponding to the second charging time period is T2, the battery temperature value corresponding to the third charging time period is T3 and the battery temperature value corresponding to the fourth charging time period is T4 are sequentially determined in the process of actually charging the battery based on the charging strategy, if which charging time period has a battery temperature value different from 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 may be issued.

In order to further improve the charging safety, after the difference information is determined to exist, whether the difference information exceeds a set difference threshold value is judged, if yes, charging of the battery is stopped after an alarm is given, and for example, the difference value between the battery temperature value in the first charging time period and T1 is larger than the set difference threshold value, charging is cut off after the alarm is given.

At present, a battery of an electric car generally has a plurality of battery cells, and during a charging process, corresponding voltages of each battery cell may not be completely the same, and in order to ensure safety of the battery during the charging process, the charging method provided in the embodiment of the present application further includes:

(1) when the battery is charged based on a charging strategy, the current voltage value of each battery cell in the battery is acquired in real time;

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

Here, in the charging process, the current voltage value of each electric core in the battery is obtained in real time, for example, the battery includes 4 electric cores, and it is detected in the charging process that the current voltage value of the 2 nd electric core has reached the corresponding set voltage threshold value when the electric core is fully charged, at this time, although the current voltage values of other electric cores have not reached the set voltage threshold value, the battery is stopped to be charged, so that it is ensured that the 2 nd electric core is not burnt.

The embodiment of the present application further provides a battery charging method, which is applied to a background server, and as shown in fig. 3, the method includes 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 grade of the battery in the charging strategy request;

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

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

Here, if the charging pile obtains the charging policy corresponding to the battery through the backend server, the backend server performs an operation, that is, when the backend server receives the charging policy request sent by the charging pile, the type of the battery in the charging policy request and the current aging degree of the battery are extracted first, 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 of different types and different aging degrees, and then the charging policies are 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, the current aging degree grade of the battery and the current environment parameter information of the charging pile in the charging strategy request;

(2) determining a charging strategy corresponding to the charging strategy request based on the type of the battery, the current aging degree grade of the battery and the current environment 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 magnitude corresponding to different charging time periods;

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

The background server needs to pre-store charging strategies corresponding to the batteries with various environmental parameter information, different types and different aging degree grades, and when receiving a charging strategy request, determines the charging strategy corresponding to the battery 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 apparatus corresponding to the battery charging method, and as the principle of the apparatus in the embodiment of the present application for solving the problem is similar to the charging method described above in the embodiment of the present application, the implementation of the apparatus may refer to the implementation of the method, and repeated details are not repeated.

Referring to fig. 4, there is shown a schematic diagram of a charging device 400 for a battery according to an embodiment of the present application, the charging device residing in a charging post, the battery being used for providing assistance to an electric vehicle, the charging device including: a first acquisition module 401, a second acquisition module 402, and a charging module 403.

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

a second obtaining module 402, configured to obtain a charging policy corresponding to a battery based on the type and the current aging degree 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;

the charging module 403 is configured to obtain a charging policy corresponding to the battery, and then charge the battery based on the charging policy.

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

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

and if so, alarming.

In one embodiment, the first obtaining module 401 receives the charge 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 used for instructing charging.

In an 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 during initial use;

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

and generating 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 parameter information, the second charging and discharging time length, the current charging and discharging cycle times and the current total using time length.

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

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 using duration and the respective corresponding weights.

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

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 an 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 degree level, and the current environmental parameter information.

In one embodiment, the first obtaining module 401 obtains the current environment parameter information according to the following manner:

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

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

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

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

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

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

a sending module 503, configured to send the charging policy to the charging pile, so that the charging pile charges the battery according to the charging policy.

The charging device for the battery, provided by the embodiment of the application, can acquire the charging strategy corresponding to the battery according to the type of the battery and the current aging degree grade of the battery, and after the charging strategy is acquired, the battery is charged according to the charging strategy, the charging strategy specifies the current sizes corresponding to different charging time periods when the battery is charged, and the charging process better conforms to the type and the current aging degree of the battery, so that when the battery is charged according to the charging strategy, the charging safety of the battery can be improved, and the service life of the battery can be prolonged.

The description of the processing flow of each module in the device and the interaction flow between the modules may refer to the related description in the above method embodiments, and will not be described in detail here.

The embodiment of the present application further provides an electronic device, where the electronic device may be a charging pile or a backend server, and when the electronic device is a charging pile, as shown in fig. 6, a schematic structural diagram of the electronic device 600 provided by the embodiment of the present 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 (for example, execution instructions corresponding to the first obtaining module 401, the second obtaining module 402, and the charging module 403 in the apparatus in fig. 4, and the like), when the electronic device 600 runs, the processor 601 communicates with the storage medium 602 through the bus 603, and the machine-readable instructions, when executed by the processor 601, perform the following processes:

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 a charging pile to charge the battery according to the current magnitude corresponding to different charging time periods;

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 so, alarming.

When the electronic device is a background server, as shown in fig. 7, a schematic structural diagram of an 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 (for example, execution instructions corresponding to the extracting module 501, the determining module 502, and the sending module 503 in the apparatus in fig. 5, and the like), when the electronic device 700 is operated, 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 processes are performed:

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

An embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program performs the steps of the charging method.

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

It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to corresponding processes in the method embodiments, and are not described in detail in this application. In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and there may be other divisions in actual implementation, and for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or modules through some communication interfaces, and may be in an electrical, mechanical or other form.

The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into 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 or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the 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 charging method of a battery is applied to a charging pile, the battery is used for providing assistance for an electric vehicle, and the charging method is characterized by comprising 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 comprises:

3. The charging method according to claim 1, further comprising:

and if so, alarming.

4. The charging method of claim 1, wherein the charging indication is received as follows:

5. The charging method according to claim 1, wherein the obtaining of the type and the current aging level of the battery comprises:

6. The charging method of claim 5, wherein determining the current age level of the battery based on the first charging parameter information, the first charging and discharging time period, the second charging parameter information, the second charging and discharging time period, the current number of charging and discharging cycles, and the current total usage time period comprises:

7. The charging method according to claim 6, 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 cycle number, the current total usage time length and the respective corresponding weights comprises:

8. The charging method according to claim 1, further comprising:

9. The charging method according to claim 8, wherein the current environmental parameter information is acquired as follows:

10. The charging method according to claim 1, further comprising:

11. A battery charging method is applied to a background server, and is characterized by comprising the following steps:

12. A charging device for a battery residing in a charging post, the battery for providing assistance to an electric vehicle, comprising:

13. A battery charger residing in a backend server, comprising:

14. 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 via the bus when the electronic device is operating, the processor executing the machine-readable instructions to perform the steps of the charging method according to any one of claims 1 to 11.

15. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, is adapted to carry out the steps of the charging method according to any one of claims 1 to 11.