CN117335507A - Battery charging control method, device and storage medium - Google Patents

Battery charging control method, device and storage medium Download PDF

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Publication number
CN117335507A
CN117335507A CN202210731267.2A CN202210731267A CN117335507A CN 117335507 A CN117335507 A CN 117335507A CN 202210731267 A CN202210731267 A CN 202210731267A CN 117335507 A CN117335507 A CN 117335507A
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China
Prior art keywords
battery
determining
voltage
value
overdischarge
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CN202210731267.2A
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Chinese (zh)
Inventor
张金虎
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to CN202210731267.2A priority Critical patent/CN117335507A/en
Publication of CN117335507A publication Critical patent/CN117335507A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging or discharging current or voltage
    • H02J7/00712Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302Overcharge protection
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048Detection of remaining charge capacity or state of charge [SOC]

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present disclosure relates to a battery charge control method, apparatus, and storage medium. The method comprises the following steps: responding to a battery charging request, and acquiring battery voltage; determining the accumulated number of overdischarge times of the battery in response to determining that overdischarge of the battery occurs according to the battery voltage; responding to the situation that the battery voltage is smaller than the over-discharge protection voltage and larger than the forbidden voltage, and the accumulated number of over-discharge of the battery is smaller than or equal to a preset accumulated number threshold value of over-discharge, and determining a target value of the upper limit voltage of the battery according to the battery capacity, wherein the target value is smaller than a preset initial value of the upper limit voltage of the battery; and controlling the battery to charge according to the target value. The degree of battery damage caused by the current overdischarge can be determined based on the battery capacity, and further, a target value of the upper limit voltage of charge can be determined to control the charge of the battery according to the reduced upper limit voltage of charge. Therefore, the problem that the device cannot be started after overdischarge is avoided as much as possible under the condition of ensuring the use safety of the battery, and the use experience of a user is improved.

Description

Battery charging control method, device and storage medium
Technical Field
The present disclosure relates to the field of batteries, and in particular, to a battery charging control method, apparatus, and storage medium.
Background
With the development of electronic technology, batteries are widely used in various electronic devices. During the use of the device, the battery in the device is inevitably overdischarged due to the occasional idle or use of the device. The overdischarge of the battery easily causes the problems of battery bulging and the like, influences the use safety of the battery, and shortens the service life of the battery.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a battery charge control method, apparatus, and storage medium.
According to a first aspect of embodiments of the present disclosure, there is provided a battery charge control method, the method including:
responding to a battery charging request, and acquiring battery voltage;
determining the accumulated number of overdischarge times of the battery in response to the determination that overdischarge of the battery occurs according to the battery voltage;
determining a target value of an upper charging limit voltage of the battery according to the battery capacity, wherein the target value is smaller than a preset initial value of the upper charging limit voltage;
and controlling the battery to charge according to the target value.
Optionally, the determining the target value of the upper limit voltage of the battery according to the battery capacity includes:
determining the ratio of the battery capacity after the battery is overdischarged and the battery capacity before the battery is overdischarged;
and determining the target value according to the ratio.
Optionally, the determining the target value according to the ratio includes:
and in response to determining that the ratio is greater than or equal to a preset ratio threshold, determining a first value as the target value.
Optionally, the method further comprises:
determining a number of consecutive times to control the battery to charge according to the first value;
in response to determining that the number of consecutive times reaches a preset number of times threshold, the charging upper limit voltage is adjusted from the first value to the preset initial value.
Optionally, the determining the target value according to the ratio includes:
in response to determining that the ratio is less than a preset ratio threshold, a second value is determined as the target value, wherein the second value is less than the first value.
Optionally, the method further comprises:
and generating prompt information for prompting replacement of the battery in response to determining that the ratio is smaller than a preset ratio threshold.
Optionally, the method further comprises:
and responding to the battery voltage being larger than the over-discharge protection voltage, and controlling the battery to charge this time according to the current value of the charging upper limit voltage.
According to a second aspect of embodiments of the present disclosure, there is provided a battery charge control device including:
the acquisition module is used for responding to the battery charging request and acquiring the battery voltage;
the first determining module is used for determining the accumulated times of overdischarge of the battery in response to the fact that overdischarge of the battery is determined according to the battery voltage;
a second determining module, configured to determine, according to a battery capacity, a target value of an upper charging limit voltage of the battery in response to the battery voltage being less than an overdischarge protection voltage and greater than a forbidden voltage, and the cumulative number of overdischarge of the battery being less than or equal to a preset cumulative number of overdischarge threshold, where the target value is less than a preset initial value of the upper charging limit voltage;
and the control module is used for controlling the battery to charge according to the target value.
Optionally, the second determining module includes:
the first determining submodule is used for determining the ratio of the battery capacity of the battery after the current overdischarge of the battery to the battery capacity of the battery before the current overdischarge of the battery;
and the second determination submodule is used for determining the target value according to the ratio.
Optionally, the second determining sub-module includes:
and a third determining sub-module for determining the first value as the target value in response to determining that the ratio is greater than or equal to a preset ratio threshold.
Optionally, the apparatus further comprises:
a third determining module for determining a number of consecutive times of controlling the battery to be charged according to the first value;
and an adjustment module for adjusting the charging upper limit voltage from the first value to the preset initial value in response to determining that the continuous number reaches a preset number threshold.
Optionally, the second determining sub-module includes:
and a fourth determination sub-module for determining a second value as the target value in response to determining that the ratio is less than a preset ratio threshold.
Optionally, the apparatus further comprises:
and the prompting module is used for generating prompting information for prompting the replacement of the battery in response to the fact that the ratio is smaller than a preset ratio threshold.
Optionally, the control module is further configured to control the battery to perform the current charging according to the current value of the charging upper limit voltage in response to the battery voltage being greater than the over-discharge protection voltage.
According to a third aspect of the embodiments of the present disclosure, there is provided a battery charge control device including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the battery charge control method provided by the first aspect of the present disclosure.
According to a fourth aspect of embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the battery charge control method provided by the first aspect of the present disclosure.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
through the technical scheme, the battery voltage and the accumulated times of overdischarge of the battery can be used for determining whether the battery can be charged again under the condition of ensuring the use safety of the battery under the condition of overdischarge of the battery. According to the battery capacity, the damage degree of the over-discharge to the battery can be determined, the target value of the upper limit voltage of the battery is further determined, the upper limit voltage of the battery is reduced, and the battery is subjected to charging control according to the reduced upper limit voltage of the battery. Therefore, the problem that the device cannot be started to be applied after overdischarge can be avoided as much as possible under the condition that the use safety of the battery is ensured, and the use experience of a user is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flowchart illustrating a battery charge control method according to an exemplary embodiment.
Fig. 2 is a flowchart illustrating a battery charge control method according to an exemplary embodiment.
Fig. 3 is a block diagram illustrating a battery charge control device according to an exemplary embodiment.
Fig. 4 is a block diagram illustrating a battery charge control device according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
It should be noted that, all actions for acquiring signals, information or data in the present application are performed under the condition of conforming to the corresponding data protection rule policy of the country of the location and obtaining the authorization given by the owner of the corresponding device.
At present, the voltage of the battery is usually increased to ensure the use safety of the battery, and once the voltage of the battery is lower than the voltage of the battery, the battery is forbidden to charge, but the scheme cannot fully utilize the effective capacity of the battery, and bad user experience can be brought to a user. Or, directly rewashing after the battery is over-discharged, and normally using the battery to improve the use experience of a user, but the scheme can not effectively repair the battery and easily cause the problems of battery bulging and the like, so that the service life of the battery is shortened.
In order to solve the above-described problems, the present disclosure provides a battery charge control method.
Fig. 1 is a flowchart illustrating a battery charge control method according to an exemplary embodiment. The method can be applied to a control unit of the electronic device where the battery is located or a battery management system. As shown in fig. 1, the method may include S101 to S104.
S101, responding to a battery charging request, and acquiring a battery voltage.
Taking a device where a battery is located as an example of a mobile phone, if it is detected that a charging interface of the mobile phone is connected with a charger, a battery charging request can be generated; or in the process of discharging the battery, if the battery power is lower than a preset power threshold, a battery charging request can be generated. In this way, the target value of the charge upper limit voltage of the battery can be determined before the battery is charged. Wherein, can obtain the battery voltage through the voltage sensor that sets up in advance.
S102, in response to the fact that the battery is over-discharged according to the battery voltage, the accumulated number of times of over-discharge of the battery is determined.
By way of example, it may be determined whether overdischarge of the battery occurs by comparing the battery voltage with a preset overdischarge protection voltage; if the battery voltage is less than the over-discharge protection voltage, it can be determined that the battery is over-discharged. And the cumulative number of times of overdischarge of the battery may be determined in the case where it is determined that overdischarge of the battery has occurred. Under the condition that the battery is overdischarged, a severe reaction similar to short circuit occurs in the battery to generate a large amount of heat, so that electrolyte is decomposed and gasified, the generation of gas can lead to the fact that a battery pole piece is not compact, the battery is raised, side reactions can be increased, and the battery capacity is reduced. Even if the battery is repaired, damage due to overdischarge cannot be completely reversed. The accumulated number of overdischarge of the battery can be used for representing the accumulated degree of damage of the battery caused by overdischarge of the battery, and the more the accumulated number of overdischarge is, the greater the accumulated degree of damage is.
S103, in response to the battery voltage being smaller than the over-discharge protection voltage and larger than the forbidden voltage, and the accumulated number of over-discharge of the battery being smaller than or equal to a preset accumulated number of over-discharge threshold, determining a target value of the charge upper limit voltage of the battery according to the battery capacity.
Wherein the target value is smaller than a preset initial value of the charging upper limit voltage.
For example, the over-discharge protection voltage is used to determine whether the battery is over-discharged, the impact-preventing voltage is used to determine whether the battery can be charged again, and if the battery voltage is smaller than the over-discharge protection voltage and larger than the impact-preventing voltage, the battery can be determined to be over-discharged and has the capability of being charged again. The overdischarge accumulation number threshold may be set in advance, for example, may be set to 30 times. As described above, the cumulative number of overdischarge of the battery can be used to represent the cumulative degree of damage of the battery caused by multiple overdischarge, and if the cumulative number of overdischarge of the battery is greater than the threshold value of the cumulative number of overdischarge of the battery, it can be determined that the cumulative damage of the battery caused by multiple overdischarge is serious. Under this state, the battery can not be controlled to be charged and discharged shallow for many times, so that the damage of the battery can be effectively repaired, but the damage degree of the battery can be further increased due to continuous operation of the battery, and the use safety of the battery is affected. Therefore, it is possible to determine whether the battery can be charged again while ensuring the use safety of the battery in the case of overdischarge of the battery based on the battery voltage and the accumulated number of overdischarge of the battery. In order to ensure the use safety of the battery, the battery can be forbidden to be charged when the battery voltage is less than or equal to the forbidden impulse voltage or the accumulated number of over-discharge of the battery reaches the threshold value of accumulated number of over-discharge.
The battery capacity is one of important performance indexes for measuring the battery performance, the actual battery capacity can be gradually attenuated in the use process of the battery, and the actual battery capacity can be updated once after the battery is charged or discharged every time through a pre-installed actual battery capacity detection system. The damage degree of the over-discharge to the battery can be determined according to the battery capacity, so as to determine the target value of the upper limit voltage of the battery, and the use safety of the battery is ensured by reducing the upper limit voltage of the battery.
And S104, controlling the battery to charge according to the target value.
Therefore, the upper limit voltage control battery for charging is reduced, the use safety of the battery can be ensured, the problem that the device cannot be started for application after overdischarge can be avoided as much as possible, and the use experience of a user is improved. And then the battery can be repeatedly charged and discharged for a plurality of times, and the gas generated by overdischarge is absorbed, so that the battery is repaired to a certain extent, and the effective capacity of the battery is exerted to the greatest extent.
Through the technical scheme, the battery voltage and the accumulated times of overdischarge of the battery can be used for determining whether the battery can be charged again under the condition of ensuring the use safety of the battery under the condition of overdischarge of the battery. According to the battery capacity, the damage degree of the over-discharge to the battery can be determined, the target value of the upper limit voltage of the battery is further determined, the upper limit voltage of the battery is reduced, and the battery is subjected to charging control according to the reduced upper limit voltage of the battery. Therefore, the problem that the device cannot be started to be applied after overdischarge can be avoided as much as possible under the condition that the use safety of the battery is ensured, and the use experience of a user is improved.
Alternatively, in S103, determining the target value of the charge upper limit voltage of the battery according to the battery capacity may include:
determining the ratio of the battery capacity after the battery is overdischarged to the battery capacity before the battery is overdischarged;
from the ratio, a target value is determined.
Illustratively, the ratio may be determined by the following formula:
wherein W is the ratio, c 1 C, the battery capacity after the over-discharge of the battery occurs this time 0 The battery capacity before the over-discharge of the battery occurs. The obtained ratio can reflect the damage degree of the over-discharge to the battery, and the larger the ratio is, the smaller the damage degree of the over-discharge to the battery is. The corresponding target value may be determined according to the degree of damage of the battery.
Optionally, determining the target value according to the ratio may include:
in response to determining that the ratio is greater than or equal to a preset ratio threshold, the first value is determined to be the target value.
Illustratively, the scale threshold may be preset, for example, may be set to 80%. If the ratio is 90%, the damage degree of the battery caused by the over-discharge can be determined to be light. The first value may be preset to a value smaller than a preset initial value, so as to reduce the upper limit voltage of the charging by a small margin, and ensure the use safety of the battery.
Then, the battery is controlled to be charged according to the first value of the charging upper limit voltage.
Correspondingly, the battery charging control method provided by the present disclosure may further include:
determining a number of consecutive times to control the battery to charge according to the first value;
in response to determining that the number of consecutive times reaches a preset number of times threshold, the upper charging limit voltage is adjusted from a first value to a preset initial value.
For example, as described above, if the first value is determined as the target value, it may be determined that the damage to the battery caused by the current overdischarge is small. The battery is repeatedly charged and discharged for many times, so that the gas generated by overdischarge can be absorbed to repair the battery to a certain extent, the effective capacity of the battery can be exerted to the greatest extent, and the service life of the battery is prolonged. Therefore, the degree of self-repair of the battery can be determined by comparing the continuous number of times the battery is controlled to be charged with the number of times threshold, and the greater the continuous number of times, the higher the degree of self-repair. Wherein the number of times threshold may be preset, for example, may be set to 10 times. If the continuous number of times of charging the battery reaches 10, it can be determined that the battery has absorbed all or most of the gas generated by overdischarge through continuous charging and discharging when the target value, i.e., the upper limit voltage of charging, is the first value, and the battery at this time can safely operate when the upper limit voltage of charging is the preset initial value, so that the upper limit voltage of charging is adjusted from the first value to the preset initial value, the service time of the battery after each charging is increased, and the user experience is improved.
In the discharging process after the battery is controlled to be charged according to the first value, if the battery voltage is smaller than the over-discharge protection voltage, the target value can be redetermined according to the battery charging control method provided by the disclosure, and if the target value is the first value, the continuous times of controlling the battery to be charged according to the first value can be redeposited, so that the self-repairing degree of the battery is improved.
Optionally, determining the target value according to the ratio may include:
in response to determining that the ratio is less than the preset ratio threshold, the second value is determined as the target value.
For example, as described above, if the ratio is 60%, it can be determined that the damage to the battery caused by the overdischarge is heavy. The second value can be preset to be smaller than the first value, so that the upper limit voltage of charging is reduced to a larger extent, the use safety of the battery is ensured, and the application of some low-power consumption scenes of the equipment is met. According to the damage degree of the battery, different upper limit charging voltages are set, so that the service time of the battery after each charging can be increased as much as possible under the condition of ensuring the use safety of the battery, and the use experience of a user is improved.
Correspondingly, the battery charging control method provided by the present disclosure may further include:
and generating prompt information for prompting replacement of the battery in response to the fact that the determined ratio is smaller than a preset ratio threshold.
For example, as described above, if the ratio is determined to be smaller than the preset ratio threshold, it may be determined that the damage to the battery caused by the overdischarge is heavy. At this time, although the battery can be repaired to some extent by repeating the charge and discharge of the battery, the repairing effect is not good, so that the user can be prompted to replace the battery as soon as possible by generating the prompting information for prompting the replacement of the battery. Taking the device where the battery is located as a mobile phone as an example, under the condition that the ratio is smaller than the preset ratio threshold, a prompt message such as 'please replace the battery' can be displayed on a display screen of the mobile phone. Alternatively, the above information can be voice broadcast through a speaker set in the mobile phone, so as to prompt the user.
Optionally, the battery charging control method provided by the present disclosure may further include:
and responding to the battery voltage being greater than the over-discharge protection voltage, and controlling the battery to charge according to the current value of the charging upper limit voltage.
For example, if the battery voltage is greater than the over-discharge protection voltage, it may be determined that no over-discharge has occurred during the last discharge of the battery, without adjusting the current upper charge limit voltage. If the battery voltage is greater than the over-discharge protection voltage and the current value of the charging upper limit voltage is the initial preset value, the battery can be controlled to be charged according to the initial preset value. If the battery voltage is greater than the over-discharge protection voltage and the current value of the upper limit voltage of charging is the first value, the battery can be controlled to charge this time according to the first value, and the number of times of charging is increased by one time according to the original continuous number of times of controlling the battery to charge according to the first value. If the battery voltage is greater than the over-discharge protection voltage and the current value of the upper limit voltage is the second value, the battery can be controlled to charge according to the second value.
Fig. 2 is a flowchart illustrating a battery charge control method according to an exemplary embodiment. The implementation process of the battery charge control method provided by the present disclosure can be more clearly understood through fig. 2. As shown in fig. 2, the method may include S201 to S213.
S201, in response to a battery charging request, a battery voltage is acquired.
And S202, if the battery voltage is smaller than the over-discharge protection voltage, determining that the battery is over-discharged.
S203, determining the accumulated number of overdischarge of the battery.
S204, determining whether the battery voltage is greater than the forbidden voltage and whether the accumulated number of over-discharge of the battery is less than or equal to a preset accumulated number of over-discharge threshold. If not, that is, the battery voltage is less than or equal to the forbidden voltage, or the accumulated number of overdischarge times of the battery is greater than the accumulated number of overdischarge times threshold, S205 is executed; if yes, that is, the battery voltage is greater than the forbidden voltage and the cumulative number of overdischarge of the battery is less than or equal to the cumulative number of overdischarge threshold, S206 is executed.
S205, the battery charge is prohibited.
S206, determining the ratio of the battery capacity after the battery is over-discharged and the battery capacity before the battery is over-discharged.
S207, in response to determining that the ratio is greater than or equal to a preset ratio threshold, determining the first value as a target value, and controlling the battery to charge this time according to the first value.
S208, determining the continuous times of charging the battery according to the first value.
S209, in response to determining that the continuous times reach a preset time threshold, the charging upper limit voltage is adjusted from a first value to a preset initial value.
And S210, in response to the fact that the determined ratio is smaller than the preset ratio threshold, determining a second value as a target value, and controlling the battery to charge this time according to the second value.
S211, generating prompt information for prompting replacement of the battery.
And S212, if the battery voltage is not less than the over-discharge protection voltage, determining that the battery is not over-discharged.
And S213, controlling the battery to charge according to the current value of the upper limit voltage.
The first value and the second value are smaller than the preset initial value, and the second value is smaller than the first value.
In this way, it is possible to determine whether the battery can be charged again while ensuring the use safety of the battery in the case of overdischarge of the battery by the battery voltage and the accumulated number of overdischarge of the battery. According to the battery capacity, the damage degree of the over-discharge to the battery can be determined. If the damage degree of the overdischarge to the battery is light, the first value can be determined as a target value so as to ensure the use safety of the battery; the repeated charge and discharge of the battery are controlled, so that the gas generated by overdischarge can be absorbed, the battery is repaired to a certain extent, the effective capacity of the battery can be brought into full play to the greatest extent, and the service life of the battery is prolonged. If the damage degree of the overdischarge to the battery is heavy, the second value can be determined as a target value to ensure the charging safety of the battery and meet the application of some low-power consumption scenes of the equipment.
Based on the same inventive concept, the present disclosure also provides a battery charging control device. Fig. 3 is a block diagram illustrating a battery charge control device according to an exemplary embodiment. Referring to fig. 3, the battery charge control device 300 may include:
an obtaining module 301, configured to obtain a battery voltage in response to a battery charging request;
a first determining module 302, configured to determine a cumulative number of overdischarge times of the battery in response to determining that overdischarge of the battery occurs according to the battery voltage;
a second determining module 303, configured to determine, according to a battery capacity, a target value of an upper charging limit voltage of the battery in response to the battery voltage being less than an overdischarge protection voltage and greater than a forbidden voltage, and the cumulative number of overdischarge times of the battery being less than or equal to a preset cumulative number of overdischarge times threshold, where the target value is less than a preset initial value of the upper charging limit voltage;
and the control module 304 is configured to control the battery to perform current charging according to the target value.
Through the technical scheme, the battery voltage and the accumulated times of overdischarge of the battery can be used for determining whether the battery can be charged again under the condition of ensuring the use safety of the battery under the condition of overdischarge of the battery. According to the battery capacity, the damage degree of the over-discharge to the battery can be determined, the target value of the upper limit voltage of the battery is further determined, the upper limit voltage of the battery is reduced, and the battery is subjected to charging control according to the reduced upper limit voltage of the battery. Therefore, the problem that the device cannot be started to be applied after overdischarge can be avoided as much as possible under the condition that the use safety of the battery is ensured, and the use experience of a user is improved.
Optionally, the second determining module 303 includes:
the first determining submodule is used for determining the ratio of the battery capacity of the battery after the current overdischarge of the battery to the battery capacity of the battery before the current overdischarge of the battery;
and the second determination submodule is used for determining the target value according to the ratio.
Optionally, the second determining sub-module includes:
and a third determining sub-module for determining the first value as the target value in response to determining that the ratio is greater than or equal to a preset ratio threshold.
Optionally, the apparatus 300 further includes:
a third determining module for determining a number of consecutive times of controlling the battery to be charged according to the first value;
and an adjustment module for adjusting the charging upper limit voltage from the first value to the preset initial value in response to determining that the continuous number reaches a preset number threshold.
Optionally, the second determining sub-module includes:
and a fourth determination sub-module for determining a second value as the target value in response to determining that the ratio is less than a preset ratio threshold.
Optionally, the apparatus 300 further includes:
and the prompting module is used for generating prompting information for prompting the replacement of the battery in response to the fact that the ratio is smaller than a preset ratio threshold.
Optionally, the control module 304 is further configured to control the battery to perform the current charging according to the current value of the charging upper limit voltage in response to the battery voltage being greater than the over-discharge protection voltage.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
The present disclosure also provides a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the battery charge control method provided by the present disclosure.
Fig. 4 is a block diagram illustrating a battery charge control device 800 according to an exemplary embodiment. For example, apparatus 800 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, or the like.
Referring to fig. 4, apparatus 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output interface 812, a sensor component 814, and a communication component 816.
The processing component 802 generally controls overall operation of the apparatus 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the battery charge control method described above. Further, the processing component 802 can include one or more modules that facilitate interactions between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on the device 800, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
The power supply component 806 provides power to the various components of the device 800. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 800.
The multimedia component 808 includes a screen between the device 800 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the apparatus 800 is in an operational mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the device 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 further includes a speaker for outputting audio signals.
Input/output interface 812 provides an interface between processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 814 includes one or more sensors for providing status assessment of various aspects of the apparatus 800. For example, the sensor assembly 814 may detect an on/off state of the device 800, a relative positioning of the components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, an orientation or acceleration/deceleration of the device 800, and a change in temperature of the device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communication between the apparatus 800 and other devices, either in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for performing the above-described battery charge control methods.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 804 including instructions executable by processor 820 of apparatus 800 to perform the battery charge control method described above. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
The apparatus may be a stand-alone electronic device or may be part of a stand-alone electronic device, for example, in one embodiment, the apparatus may be an integrated circuit (Integrated Circuit, IC) or a chip, where the integrated circuit may be an IC or may be a collection of ICs; the chip may include, but is not limited to, the following: GPU (Graphics Processing Unit, graphics processor), CPU (Central Processing Unit ), FPGA (Field Programmable Gate Array, programmable logic array), DSP (Digital Signal Processor ), ASIC (Application Specific Integrated Circuit, application specific integrated circuit), SOC (System on Chip, SOC, system on Chip or System on Chip), etc. The integrated circuit or chip may be configured to execute executable instructions (or code) to implement the battery charge control method described above. The executable instructions may be stored on the integrated circuit or chip or may be retrieved from another device or apparatus, such as the integrated circuit or chip including a processor, memory, and interface for communicating with other devices. The executable instructions may be stored in the memory, which when executed by the processor implement the battery charge control method described above; alternatively, the integrated circuit or chip may receive the executable instructions through the interface and transmit the executable instructions to the processor for execution to implement the battery charge control method described above.
In another exemplary embodiment, a computer program product is also provided, comprising a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-described battery charge control method when executed by the programmable apparatus.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A battery charge control method, the method comprising:
responding to a battery charging request, and acquiring battery voltage;
determining the accumulated number of overdischarge times of the battery in response to the determination that overdischarge of the battery occurs according to the battery voltage;
determining a target value of an upper charging limit voltage of the battery according to the battery capacity, wherein the target value is smaller than a preset initial value of the upper charging limit voltage;
and controlling the battery to charge according to the target value.
2. The method according to claim 1, wherein the determining the target value of the upper limit voltage of charge of the battery according to the battery capacity includes:
determining the ratio of the battery capacity after the battery is overdischarged and the battery capacity before the battery is overdischarged;
and determining the target value according to the ratio.
3. The method of claim 2, wherein said determining said target value based on said ratio comprises:
and in response to determining that the ratio is greater than or equal to a preset ratio threshold, determining a first value as the target value.
4. A method according to claim 3, characterized in that the method further comprises:
determining a number of consecutive times to control the battery to charge according to the first value;
in response to determining that the number of consecutive times reaches a preset number of times threshold, the charging upper limit voltage is adjusted from the first value to the preset initial value.
5. A method according to claim 3, wherein said determining said target value from said ratio comprises:
in response to determining that the ratio is less than a preset ratio threshold, a second value is determined as the target value, wherein the second value is less than the first value.
6. A method according to claim 3, characterized in that the method further comprises:
and generating prompt information for prompting replacement of the battery in response to determining that the ratio is smaller than a preset ratio threshold.
7. The method according to any one of claims 1-6, further comprising:
and responding to the battery voltage being larger than the over-discharge protection voltage, and controlling the battery to charge this time according to the current value of the charging upper limit voltage.
8. A battery charge control device, characterized by comprising:
the acquisition module is used for responding to the battery charging request and acquiring the battery voltage;
the first determining module is used for determining the accumulated times of overdischarge of the battery in response to the fact that overdischarge of the battery is determined according to the battery voltage;
a second determining module, configured to determine, according to a battery capacity, a target value of an upper charging limit voltage of the battery in response to the battery voltage being less than an overdischarge protection voltage and greater than a forbidden voltage, and the cumulative number of overdischarge of the battery being less than or equal to a preset cumulative number of overdischarge threshold, where the target value is less than a preset initial value of the upper charging limit voltage;
and the control module is used for controlling the battery to charge according to the target value.
9. A battery charge control device, characterized by comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the method of any of claims 1-7.
10. A computer readable storage medium having stored thereon computer program instructions, which when executed by a processor, implement the steps of the method of any of claims 1-7.
CN202210731267.2A 2022-06-24 2022-06-24 Battery charging control method, device and storage medium Pending CN117335507A (en)

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