CN117293935A - Charge and discharge control method and device and storage medium - Google Patents
Charge and discharge control method and device and storage medium Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 78
- 238000011217 control strategy Methods 0.000 claims abstract description 99
- 230000008569 process Effects 0.000 claims abstract description 45
- 238000007599 discharging Methods 0.000 claims abstract description 37
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
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- 230000006399 behavior Effects 0.000 claims description 119
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- 230000003111 delayed effect Effects 0.000 abstract description 5
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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- 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 disclosure relates to a charge and discharge control method, a device and a storage medium, wherein the method comprises the following steps: monitoring charge and discharge information of the equipment in the charge and discharge process in response to the equipment meeting charge and discharge conditions; based on the charge and discharge information, counting the time length of the target charge and discharge behavior, wherein the charge and discharge behavior represents that the charge and discharge information meets the preset condition; and determining a charge-discharge control strategy based on the time length of the target charge-discharge behavior, and charging and discharging the equipment based on the charge-discharge control strategy. According to the method and the device, according to the charge and discharge information of the charge and discharge process of the device and the user behavior, the time length of the target charge and discharge behavior is counted, the charge and discharge control strategy is further determined, the charge and discharge control is carried out on the device, and the aging of the battery can be effectively delayed.
Description
Technical Field
The disclosure relates to the technical field of battery charging, and in particular relates to a charge and discharge control method, a device and a storage medium.
Background
In the related art, the Charge and discharge modes of the battery in different Charge and discharge temperature stages are mostly set according to the battery specification, and the disadvantage is that the determination of the Charge and discharge policy of the battery is a fixed value, which cannot meet the dynamic adjustment of the user under different use behaviors, and because of the influence of the Charge and discharge threshold and the Charge and discharge precision of a Charge IC (battery charging chip) such as a Power Management circuit (PMIC), an undetectable overcharge or overdischarge situation occurs, and an irreversible battery aging trend is caused.
Disclosure of Invention
In order to overcome the problems in the related art, the present disclosure provides a charge and discharge control method, apparatus, and storage medium.
According to a first aspect of an embodiment of the present disclosure, there is provided a charge and discharge control method, including: monitoring charge and discharge information of the equipment in the charge and discharge process in response to the equipment meeting charge and discharge conditions; based on the charge and discharge information, counting the time length of the target charge and discharge behavior, wherein the charge and discharge behavior represents that the charge and discharge information meets the preset condition; and determining a charge-discharge control strategy based on the time length of the target charge-discharge behavior, and charging and discharging the equipment based on the charge-discharge control strategy.
In one embodiment, the counting, based on the charge and discharge information, a duration of time for which the target charge and discharge behavior occurs includes:
determining the occurrence of target charge-discharge behaviors based on the charge-discharge information, and counting the duration of the occurrence of the target charge-discharge behaviors when the target charge-discharge behaviors occur each time; counting the total duration of the target charge-discharge behavior in different counting periods;
the determining a charge-discharge control strategy based on the time length of the target charge-discharge behavior comprises the following steps:
and determining a charge-discharge control strategy based on the total duration of the target charge-discharge behavior in the statistical period.
In one embodiment, the charge-discharge control strategy includes a plurality of charge-discharge control strategies with different levels, where a correspondence is provided between a duration and a level of the charge-discharge control strategy;
the determining a charge-discharge control strategy based on the total duration of the target charge-discharge behavior in the statistical period includes:
and determining a target charge-discharge control strategy level matching the total duration based on the corresponding relation between the duration and the charge-discharge control strategy level, and obtaining a target charge-discharge control strategy corresponding to the target charge-discharge control strategy level.
In one embodiment, the data information of the charge and discharge process includes at least one of the following involved in the charge and discharge process:
voltage data, current data, power data, charge-discharge duration and charge-discharge times.
In one embodiment, the target charge-discharge behavior includes an overcharge behavior, and the charge-discharge control strategy includes reducing a voltage during the charging process;
the target charging behavior comprises an overdischarge behavior, and the charging and discharging control strategy comprises current reduction in a discharging process.
According to a second aspect of the embodiments of the present disclosure, there is provided a charge and discharge control device including:
the monitoring unit is used for responding to the condition that the equipment meets the charge and discharge conditions and monitoring charge and discharge information of the charge and discharge process of the equipment;
the statistics unit is used for counting the time length of the occurrence of the target charge-discharge behavior based on the charge-discharge information, wherein the occurrence of the target charge-discharge behavior represents that the charge-discharge information meets the preset condition;
and the power management unit is used for determining a charge-discharge control strategy based on the time length of the target charge-discharge behavior and carrying out charge-discharge on the equipment based on the charge-discharge control strategy.
In one embodiment, the power management unit counts the duration of the target charging and discharging behavior based on the charging and discharging information in the following manner:
determining the occurrence of target charge-discharge behaviors based on the charge-discharge information, and counting the duration of the occurrence of the target charge-discharge behaviors when the target charge-discharge behaviors occur each time; counting the total duration of the target charge-discharge behavior in different counting periods;
the power management unit determines a charge-discharge control strategy based on the duration of the target charge-discharge behavior in the following manner:
and determining a charge-discharge control strategy based on the total duration of the target charge-discharge behavior in the statistical period.
In one embodiment, the charge-discharge control strategy includes a plurality of charge-discharge control strategies with different levels, where a correspondence is provided between a duration and a level of the charge-discharge control strategy;
the power management unit determines a charge-discharge control strategy based on the total duration of the target charge-discharge behavior occurring in the statistical period in the following manner:
and determining a target charge-discharge control strategy level matching the total duration based on the corresponding relation between the duration and the charge-discharge control strategy level, and obtaining a target charge-discharge control strategy corresponding to the target charge-discharge control strategy level.
In one embodiment, the charge and discharge information includes at least one of the following involved in the charge and discharge process:
voltage data, current data, power data, charge-discharge duration and charge-discharge times.
In one embodiment, the target charge-discharge behavior includes an overcharge behavior, and the charge-discharge control strategy includes reducing a voltage during the charging process;
the target charging behavior comprises an overdischarge behavior, and the charging and discharging control strategy comprises current reduction in a discharging process.
According to a third aspect of the embodiments of the present disclosure, there is provided a charge and discharge control apparatus including:
a memory for storing instructions; and
and the processor is used for calling the instructions stored in the memory to execute the charge and discharge control method.
According to a fourth aspect of embodiments of the present disclosure, there is provided a storage medium having instructions stored therein, which when executed by a processor, perform the charge-discharge control method as described above.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: according to the charge and discharge information and user behaviors in the charge and discharge process of the equipment, the time length of the target charge and discharge behaviors is counted, the charge and discharge control strategy is further determined according to the time length of the target charge and discharge behaviors, the charge and discharge control is carried out on the equipment, and the aging of the battery is effectively delayed.
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 charge and discharge control method according to an exemplary embodiment.
Fig. 2 is a flowchart illustrating a charge and discharge control method according to an exemplary embodiment.
Fig. 3 is a block diagram illustrating a charge and discharge control apparatus according to an exemplary embodiment.
Fig. 4 is a block diagram illustrating a charge and discharge control apparatus according to an exemplary embodiment.
Fig. 5 is a schematic structural view showing an apparatus for charge and discharge control according to an exemplary embodiment.
Detailed Description
Features and exemplary embodiments of various aspects of the present application are described in detail below to make the objects, technical solutions and advantages of the present application more apparent, and to further describe the present application in conjunction with the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative of the application and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application.
The present disclosure relates generally to the field of battery management, and more particularly to charge and discharge control applied to mobile devices such as mobile phones.
Wherein the term description of charge and discharge referred to in this disclosure may be understood to include a charge process or a discharge process.
In the related art, the determination of the battery charging and discharging policy is performed based on a fixed value determined by charging and discharging information, and the fixed value mode cannot satisfy dynamic adjustment under different use behaviors of users, and the overcharge condition may occur due to the influence of the charging and discharging threshold value and the charging and discharging precision of battery charging chips such as PMIC, and battery aging may be caused
In order to solve the technical problems, according to the charge and discharge information of the charge and discharge process of the equipment, the method and the device for controlling the charge and discharge strategy of the battery, disclosed by the invention, count the time length of the target charge and discharge behavior which needs to be controlled by the charge and discharge strategy, further determine the charge and discharge control strategy based on the time length of the target charge and discharge behavior, and control the charge and discharge of the equipment, so that the battery aging can be effectively delayed.
Fig. 1 is a flowchart illustrating a charge and discharge control method according to an exemplary embodiment, as shown in fig. 1, including the following steps.
In step S11, charge and discharge information of the charge and discharge process of the device is monitored in response to the device satisfying the charge and discharge condition.
Wherein the charge-discharge conditions include a charge condition or a discharge condition. The charge and discharge information includes charge information and discharge information.
The charge and discharge information may be at least one of voltage data, current data, power data, charge and discharge duration and charge and discharge times.
When the device meets charging conditions, such as a charger or wireless charging, and a charging function is started, charging information, such as charging voltage, charging current and the like, in the charging process of the device is monitored and tracked in real time.
When the equipment meets the discharge condition, such as the terminal is operated and consumes electricity, the discharge information in the discharge process of the equipment, especially the information of overvoltage and overcurrent conditions, such as discharge current and the like, is monitored and tracked in real time.
In step S12, based on the charge and discharge information, the duration of the occurrence of the target charge and discharge behavior is counted, where the occurrence of the target charge and discharge behavior characterizes that the charge and discharge information satisfies a preset condition.
According to the monitoring of the data information in the charging and discharging process, the charging and discharging information meeting the preset condition can be determined, and when the charging and discharging information of the battery meets the preset condition, the state of the battery is called as the occurrence target charging and discharging behavior. For example, when the charge-discharge information is voltage information, the target charge-discharge behavior may be overvoltage behavior. When the charge and discharge is new current information, the target charge and discharge behavior may be an overepidemic behavior.
The method and the device can monitor and count the duration of the target charging behavior of the battery.
In step S13, a charge-discharge control strategy is determined based on the duration of time for which the target charge-discharge behavior occurs, and the device is charged and discharged based on the charge-discharge control strategy.
In the embodiment of the disclosure, according to the charge and discharge information of the charge and discharge process of the device, the time length of the target charge and discharge behavior which needs to be controlled by the charge and discharge strategy is counted, the charge and discharge control strategy is further determined based on the time length of the target charge and discharge behavior, the charge and discharge control is performed on the device, and the aging of the battery can be effectively delayed.
In an example, when the over-voltage and over-current behavior in the charging and discharging process is monitored and tracked in real time, timing is started when the set over-voltage or over-current setting condition is met, and meanwhile, when the duration of the target charging and discharging behavior recorded by the timer meets or reaches the preset charging and discharging time threshold, a corresponding charging and discharging control strategy is started, and charging and discharging are carried out on the equipment according to the charging and discharging control strategy.
Embodiments of the present disclosure will be described below with respect to an implementation procedure based on a time period during which a target charge-discharge behavior occurs.
Fig. 2 is a flowchart illustrating a charge and discharge control method according to an exemplary embodiment, as shown in fig. 2, including the following steps.
In step S21, the occurrence of the target charge-discharge behavior is determined based on the charge-discharge information, and the duration for which the target charge-discharge behavior is continued is counted each time the target charge-discharge behavior is generated.
In step S22, the total duration of the target charge-discharge behavior is counted in different counting periods.
In step S23, a charge-discharge control strategy is determined based on the total duration of the target charge-discharge behavior occurring in the statistical period.
In the embodiment of the disclosure, when the equipment meets the charge and discharge conditions, monitoring of charge and discharge information is started. For example, when the charging condition is met when the device is plugged into a charger or wireless charging is started, monitoring of charging information can be started, and overvoltage and overpopularity in the charging process can be monitored and tracked in real time. When the preset overvoltage or overcurrent setting condition is met, the duration of the target charging and discharging behavior is counted, and the total duration of the target charging and discharging behavior is counted in different counting periods (such as a period set by one day, one week, one month and the like). And if the total time length of the target charge-discharge behavior in the counting period meets the set condition, starting a corresponding charge-discharge control strategy. For example: when the duration of a target charge-discharge behavior (overcharge condition) occurring in one statistical period (1 hour) reaches a preset condition for 10 minutes, a corresponding charge-discharge control strategy is started: the voltage to charge the device was stepped down by 10mV.
In one embodiment, the charge-discharge control strategy includes a plurality of different levels of charge-discharge control strategy. The time length and the charge-discharge control strategy level have a corresponding relation. Based on the total duration of the target charge-discharge behavior occurring within the statistical period, determining a charge-discharge control strategy includes: and determining a target charge-discharge control strategy level matching the total duration based on the corresponding relation between the duration and the charge-discharge control strategy level, and obtaining a target charge-discharge control strategy corresponding to the target charge-discharge control strategy level.
In some embodiments, the number of times of overcharge and overdischarge in a preset time period is recorded, for example, the time period of each hour is denoted as T1, for example, the sum of the time of each day/week/month may be denoted as T2, T3, and T4 … ….
When the number of overcharging is greater than a set threshold (for example, t1=1h), the conditions for aging the overcharged primary battery are satisfied, and a strategy of stepping down by 10mV is performed. Similarly, when the second stage overcharge medium stage aging condition is satisfied, a strategy of reducing the voltage by 15mV is performed, and when the third stage overcharge medium stage aging condition is satisfied, a strategy of reducing the voltage by 20mV is performed.
And similarly, when the over-discharge condition is met, performing the down-flow treatment. And when the over-amplification times are larger than a set threshold value, corresponding over-discharge cell aging conditions are met, and a current-reducing strategy is carried out. For example, when the overdischarge number reaches the primary battery aging threshold value in a timing period of one hour, a 10mA down-flow is performed according to the primary battery overdischarge aging (charge-discharge control) strategy, and similarly, when the second-gear overcurrent mid-stage aging condition is satisfied, a 15mA down-flow strategy is performed, and when the third-gear overdischarge final-stage aging condition is satisfied, a 20mA down-flow strategy is performed.
Similarly, a power threshold may be set to trigger a corresponding control strategy.
In addition, the sum of the cycle times reaches a preset threshold, and a corresponding control strategy can be started to control the charge and discharge of the equipment.
In some embodiments, the data information of the charge and discharge process includes voltage data, current data, power data, charge and discharge duration, charge and discharge times, and the like, which are involved in the charge and discharge process.
Based on the charge-discharge control strategy, the overcharge behavior or overdischarge behavior in the charge-discharge process can be timely monitored, and the corresponding charge-discharge strategy can be timely detected and adopted, so that the service life of the battery cell is prolonged, and the charge safety is ensured. Meanwhile, under the condition of prolonging the service life of the battery core, the battery can store more electric quantity as much as possible.
Based on the same conception, the embodiment of the disclosure also provides a charge and discharge control device.
Fig. 3 is a block diagram illustrating a charge and discharge control apparatus according to an exemplary embodiment. Referring to fig. 3, the charge and discharge control device 100 includes a monitoring unit 101, a counting unit 102, and a power management unit 103.
The monitoring unit 101 is configured to monitor charge and discharge information of a charge and discharge process of the device in response to the device satisfying the charge and discharge condition. That is, when the device satisfies the charge and discharge conditions, in order to obtain the target charge and discharge behavior, charge and discharge information of the charge and discharge process of the device is monitored.
The statistics unit 102 is configured to count a duration of occurrence of a target charge-discharge behavior based on the charge-discharge information, where the occurrence of the target charge-discharge behavior characterizes the charge-discharge information as meeting a preset condition.
According to the embodiment of the disclosure, whether the condition for starting the charge-discharge control strategy is met is determined by the time length of the target charge-discharge behavior.
The power management unit 103 is configured to determine a charge-discharge control policy based on a time period during which the target charge-discharge behavior occurs, and charge and discharge the device based on the charge-discharge control policy.
When the duration of the target charging and discharging behavior meets the triggering condition of the corresponding charging and discharging control strategy, the corresponding charging and discharging control strategy is started to charge and discharge the equipment.
In one embodiment, the power management unit 103 determines that the target charge-discharge behavior occurs based on the charge-discharge information, and counts the duration for which the target charge-discharge behavior occurs each time the target charge-discharge behavior occurs. And counting the total duration of the target charge-discharge behavior in different counting periods.
The power management unit 103 determines the charge-discharge control strategy based on the time length for which the target charge-discharge behavior occurs in the following manner:
and determining a charge-discharge control strategy based on the total duration of the target charge-discharge behavior occurring in the statistical period.
In this embodiment, according to the duration of each occurrence of the target charging and discharging behavior and the duration of each occurrence of the target charging and discharging behavior in a certain statistical period, the duration is used as a trigger condition for starting the charging and discharging control strategy.
In an embodiment, the charge-discharge control strategy includes a plurality of charge-discharge control strategies with different levels, where a correspondence is provided between a duration and a level of the charge-discharge control strategy. Based on the total duration of the target charge-discharge behavior occurring within the statistical period, determining a charge-discharge control strategy includes: and determining a target charge-discharge control strategy level matching the total duration based on the corresponding relation between the duration and the charge-discharge control strategy level, and obtaining a target charge-discharge control strategy corresponding to the target charge-discharge control strategy level.
In this embodiment, by setting the charge and discharge control policies of different levels, the corresponding duration of each occurrence of the target charge and discharge behavior in the statistical period, for example, the longer the duration of each occurrence of the target charge and discharge behavior in a certain statistical period, the higher the corresponding level of the target charge and discharge control policy to be started, and by corresponding to the charge and discharge control policies of different levels, the long-time occurrence of the target charge and discharge behavior is effectively avoided in time, and the battery is prevented from aging.
In some embodiments, the monitoring unit monitors at least one of the following in relation to charge and discharge information of the device during the charge and discharge in response to the device satisfying the charge and discharge condition: voltage data, current data, power data, charge-discharge duration and charge-discharge times.
In practical application, the use condition of the device, namely the discharge condition, and other conditions related to charge and discharge can also be considered.
In some embodiments, the device may be charged and discharged based on the following charge and discharge control strategy: the target charge-discharge behavior comprises an overcharge behavior, the charge-discharge control strategy comprises a step-down of a voltage in a charge process, and/or the target charge behavior comprises an overdischarge behavior, and the charge-discharge control strategy comprises a step-down of a current in a discharge process.
The charge/discharge control may be performed based on the charge/discharge power.
According to the embodiment of the disclosure, according to the charge and discharge information and the user behavior of the charge and discharge process of the equipment, the time length of the target charge and discharge behavior is counted, the charge and discharge control strategy is further determined, the charge and discharge control is carried out on the equipment, and the aging of the battery can be effectively delayed.
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.
It can be understood that, in order to achieve the above-mentioned functions, the charge and discharge control device provided in the embodiments of the present disclosure includes a hardware structure and/or a software module that perform each function. The disclosed embodiments may be implemented in hardware or a combination of hardware and computer software, in combination with the various example elements and algorithm steps disclosed in the embodiments of the disclosure. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation is not to be considered as beyond the scope of the embodiments of the present disclosure.
The charge and discharge processes according to the above embodiments are described below with reference to practical applications.
In the embodiments of the present disclosure, a charging scenario is mainly described below as an example.
The charging control method provided by the embodiment of the disclosure can be applied to the device shown in fig. 4. Referring to fig. 4, the apparatus 1 may be a battery device apparatus such as a mobile phone or a notebook computer. The apparatus 1 comprises: device sensors 3, storage 4, processing system 13, system application layer 5, and battery management unit 14, etc. In the embodiment of the present disclosure, an analog-to-digital unit processor (e.g. gauge) in the battery management unit 14 monitors charging information such as battery voltage, current, etc. in real time for capacity estimation, etc. The adc processor in the battery management unit 14 can report to the processing system 13 in time, so as to store the voltage and current data in the storage device 4.
By applying the embodiment of the present disclosure, the device 1 can collect the overcharge current and voltage data information during the user charging process through the battery management unit 14. The battery management unit 14 may be provided outside or inside the battery 15. The processing system 13 of the battery management unit 14 performs data analysis and evaluates the battery aging trend caused in the use process of the mobile phone of the user, and further feeds back and adjusts the internal charging mode of the mobile phone, so as to further avoid serious battery aging.
Wherein, when the device 1 satisfies a charging condition, i.e. a charger is plugged in (e.g. connected by a data line) or wireless charging is turned on, the charging control function provided by the present disclosure is turned on, and the battery management unit 14 monitors and tracks over-voltage and over-current behavior during charging in real time, and when the set over-voltage or over-current setting condition (greater than a set threshold) is satisfied, a timer in the processing system 13 starts to count until the set threshold is exited and recorded as T1. And when the set condition is met again, the sum of the daily time, the weekly time and the monthly time is recorded as the overvoltage time length, the overcurrent time length, and when the overvoltage time length, the overcurrent time length and the set threshold (for example, 1 hour) are met, the primary battery aging condition is met, and a strategy of reducing the voltage delta_V1 (10 mV) is carried out. Similarly, when the second stage aging condition is satisfied, a strategy of reducing the voltage Delta_V2 (20 mV) is performed. And when the third grade final stage aging condition is met, performing a strategy of reducing the voltage delta_V3 (30 mV).
Similarly, the judgment of the overdischarge condition is similar to the statistics of the time length aiming at the battery discharging scene. Except that when the over-put condition is satisfied, a down-flow delta_i1 (e.g., 1000 mA) is performed. Therefore, even if overcharge and overdischarge behaviors occur in the charge and discharge process, corresponding charge and discharge strategies can be timely detected and adopted, so that the service life of the battery cell is prolonged, and the charge safety is guaranteed.
Based on the same conception, the embodiment of the disclosure also provides a charge and discharge control device.
Fig. 5 is a block diagram illustrating an apparatus 200 for charge and discharge control according to an exemplary embodiment. For example, apparatus 200 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. The device can collect the overcharge current and voltage data information in the charging process of the user through the device sensor, further carries out data analysis and evaluation through the processor, determines the battery aging trend caused in the using process of the mobile phone of the user, adopts a corresponding charging and discharging control strategy, further feeds back and adjusts the internal charging mode of the mobile phone, and further avoids serious battery aging.
Referring to fig. 5, the apparatus 200 may include one or more of the following components: a processing component 202, a memory 204, a power component 206, a multimedia component 208, an audio component 210, an input/output (I/O) interface 212, a sensor component 214, and a communication component 216.
The processing component 202 generally controls overall operation of the apparatus 200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 202 may include one or more processors 220 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 202 can include one or more modules that facilitate interactions between the processing component 202 and other components. For example, the processing component 202 may include a multimedia module to facilitate interaction between the multimedia component 208 and the processing component 202.
The memory 204 is configured to store various types of data to support operations at the apparatus 200. Examples of such data include instructions for any application or method operating on the device 200, contact data, phonebook data, messages, pictures, videos, and the like. The memory 204 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 component 206 provides power to the various components of the device 200. The power components 206 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 200.
The multimedia component 208 includes a screen between the device 200 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 208 includes a front-facing camera and/or a rear-facing camera. The front camera and/or the rear camera may receive external multimedia data when the apparatus 200 is in an operation 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 210 is configured to output and/or input audio signals. For example, the audio component 210 includes a Microphone (MIC) configured to receive external audio signals when the device 200 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 204 or transmitted via the communication component 216. In some embodiments, audio component 210 further includes a speaker for outputting audio signals.
The I/O interface 212 provides an interface between the processing assembly 202 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 214 includes one or more sensors for providing status assessment of various aspects of the apparatus 200. For example, the sensor assembly 214 may detect the on/off state of the device 200, the relative positioning of the components, such as the display and keypad of the device 200, the sensor assembly 214 may also detect a change in position of the device 200 or a component of the device 200, the presence or absence of user contact with the device 200, the orientation or acceleration/deceleration of the device 200, and a change in temperature of the device 200. The sensor assembly 214 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 214 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 214 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 216 is configured to facilitate communication between the apparatus 200 and other devices in a wired or wireless manner. The device 200 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 216 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 216 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 200 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 executing the methods described above.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 204, including instructions executable by processor 220 of apparatus 200 to perform the above-described method. 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.
It is understood that the term "plurality" in this disclosure means two or more, and other adjectives are similar thereto. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It is further understood that the terms "first," "second," and the like are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the expressions "first", "second", etc. may be used entirely interchangeably. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.
It will be further understood that "connected" includes both direct connection where no other member is present and indirect connection where other element is present, unless specifically stated otherwise.
It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element. 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.
It will be further understood that although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. 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 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 scope of the appended claims.
Claims (12)
1. A charge-discharge control method, characterized by comprising:
monitoring charge and discharge information of the equipment in the charge and discharge process in response to the equipment meeting charge and discharge conditions;
based on the charge and discharge information, counting the time length of the target charge and discharge behavior, wherein the charge and discharge behavior represents that the charge and discharge information meets the preset condition;
and determining a charge-discharge control strategy based on the time length of the target charge-discharge behavior, and charging and discharging the equipment based on the charge-discharge control strategy.
2. The charge-discharge control method according to claim 1, wherein the counting the time period for which the target charge-discharge behavior occurs based on the charge-discharge information includes:
determining the occurrence of target charge-discharge behaviors based on the charge-discharge information, and counting the duration of the occurrence of the target charge-discharge behaviors when the target charge-discharge behaviors occur each time;
counting the total duration of the target charge-discharge behavior in different counting periods;
the determining a charge-discharge control strategy based on the time length of the target charge-discharge behavior comprises the following steps:
and determining a charge-discharge control strategy based on the total duration of the target charge-discharge behavior in the statistical period.
3. The charge-discharge control method according to claim 2, wherein the charge-discharge control strategy includes a plurality of charge-discharge control strategies of different levels, wherein a correspondence relationship exists between a time length and a charge-discharge control strategy level;
the determining a charge-discharge control strategy based on the total duration of the target charge-discharge behavior in the statistical period includes:
and determining a target charge-discharge control strategy level matching the total duration based on the corresponding relation between the duration and the charge-discharge control strategy level, and obtaining a target charge-discharge control strategy corresponding to the target charge-discharge control strategy level.
4. A method according to any one of claims 1 to 3, wherein the charge-discharge information comprises at least one of the following involved in the charge-discharge process:
voltage data, current data, power data, charge-discharge duration and charge-discharge times.
5. The charge-discharge control method according to claim 4, wherein the target charge-discharge behavior includes an overcharge behavior, and the charge-discharge control strategy includes stepping down a voltage during charging;
the target charging behavior comprises an overdischarge behavior, and the charging and discharging control strategy comprises current reduction in a discharging process.
6. A charge/discharge control device, comprising:
the monitoring unit is used for responding to the condition that the equipment meets the charge and discharge conditions and monitoring charge and discharge information of the charge and discharge process of the equipment;
the statistics unit is used for counting the time length of the occurrence of the target charge-discharge behavior based on the charge-discharge information, wherein the occurrence of the target charge-discharge behavior represents that the charge-discharge information meets the preset condition;
and the power management unit is used for determining a charge-discharge control strategy based on the time length of the target charge-discharge behavior and carrying out charge-discharge on the equipment based on the charge-discharge control strategy.
7. The charge and discharge control device according to claim 6, wherein the statistical unit counts a time period for occurrence of the target charge and discharge behavior based on the charge and discharge information by:
determining the occurrence of target charge-discharge behaviors based on the charge-discharge information, and counting the duration of the occurrence of the target charge-discharge behaviors when the target charge-discharge behaviors occur each time;
counting the total duration of the target charge-discharge behavior in different counting periods;
the power management unit determines a charge-discharge control strategy based on the duration of the target charge-discharge behavior in the following manner:
and determining a charge-discharge control strategy based on the total duration of the target charge-discharge behavior in the statistical period.
8. The charge-discharge control device according to claim 7, wherein the charge-discharge control strategy includes a plurality of charge-discharge control strategies of different levels, wherein a correspondence relationship exists between a time length and a charge-discharge control strategy level;
the power management unit determines a charge-discharge control strategy based on the total duration of the target charge-discharge behavior occurring in the statistical period in the following manner:
and determining a target charge-discharge control strategy level matching the total duration based on the corresponding relation between the duration and the charge-discharge control strategy level, and obtaining a target charge-discharge control strategy corresponding to the target charge-discharge control strategy level.
9. The charge-discharge control device according to claim 6, wherein the charge-discharge information includes at least one of the following involved in the charge-discharge process:
voltage data, current data, power data, charge-discharge duration and charge-discharge times.
10. The charge-discharge control device according to claim 6, wherein the target charge-discharge behavior includes an overcharge behavior, and the charge-discharge control strategy includes stepping down a voltage during charging;
the target charging behavior comprises an overdischarge behavior, and the charging and discharging control strategy comprises current reduction in a discharging process.
11. A charge/discharge control device, comprising:
a memory for storing instructions; and
a processor for invoking instructions stored in said memory to perform a charge and discharge control method according to any one of claims 1-5.
12. A storage medium having instructions stored therein that, when executed by a processor, cause the processor to perform the charge and discharge control method of any one of claims 1-5.
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