CN116759669A - Battery control method, electronic equipment and readable storage medium - Google Patents

Battery control method, electronic equipment and readable storage medium Download PDF

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Publication number
CN116759669A
CN116759669A CN202310804055.7A CN202310804055A CN116759669A CN 116759669 A CN116759669 A CN 116759669A CN 202310804055 A CN202310804055 A CN 202310804055A CN 116759669 A CN116759669 A CN 116759669A
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China
Prior art keywords
battery
capacity
state
temperature
preset
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CN202310804055.7A
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Chinese (zh)
Inventor
赵双成
王智虎
程孝仁
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Lenovo Beijing Ltd
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Lenovo Beijing Ltd
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Priority to CN202310804055.7A priority Critical patent/CN116759669A/en
Publication of CN116759669A publication Critical patent/CN116759669A/en
Pending legal-status Critical Current

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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
    • 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
    • H01M10/4285—Testing apparatus
    • 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
    • H01M10/443—Methods for charging or discharging in response to temperature
    • 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
    • H01M10/448—End of discharge regulating measures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • 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
    • H01M2010/4292—Aspects relating to capacity ratio of electrodes/electrolyte or anode/cathode

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

Abstract

The application discloses a battery control method, electronic equipment and a readable storage medium, wherein the method comprises the following steps: acquiring the use state, the battery temperature and the capacity state of a battery; if the use state, the battery temperature and the capacity state of the battery are determined to meet the preset conditions, parameters in the use state of the battery are adjusted based on the battery temperature so as to increase the use capacity of the battery. Therefore, when the battery is in a specific working condition, the use capacity of the battery can be increased by adjusting the parameters of the battery in the use state, so that the standby time of the battery in the specific working condition, such as a low-temperature low-capacity interval, is increased, and the user experience is improved.

Description

Battery control method, electronic equipment and readable storage medium
Technical Field
The present application relates to the field of battery technologies, and in particular, to a battery control method, an electronic device, and a readable storage medium.
Background
When the battery operates at a lower temperature, the internal resistance increases, and thus the discharge capacity of the battery cell may deteriorate. Particularly, when the capacity of the battery is low, the discharge cut-off voltage can be triggered rapidly, and the battery can be powered down to 0% rapidly, so that the battery is powered down, and the user experience is affected.
Disclosure of Invention
In view of the above, embodiments of the present application provide a battery control method, an electronic device and a readable storage medium, which are used for solving at least the above-mentioned technical problems in the prior art.
According to a first aspect of the present application, an embodiment of the present application provides a method for controlling a battery, including:
acquiring the use state, the battery temperature and the capacity state of a battery;
if the use state, the battery temperature and the capacity state of the battery are determined to meet the preset conditions, parameters in the use state of the battery are adjusted based on the battery temperature so as to increase the use capacity of the battery.
Optionally, if it is determined that the usage state of the battery, the battery temperature and the capacity state meet the preset conditions, adjusting parameters in the usage state of the battery based on the battery temperature to increase the usage capacity of the battery, including:
if the use state of the battery is a first state, the temperature of the battery is less than or equal to a first preset temperature, and the capacity state is that the capacity is in a first preset capacity interval, and based on the battery temperature, the parameters of the first state of the battery are adjusted so as to obtain additionally increased first charge capacity when the battery is fully charged, and the use capacity of the battery is increased;
and/or
If the use state of the battery is the second state, the battery temperature is less than or equal to the second preset temperature, and the capacity state is that the capacity is in the second preset capacity interval, based on the battery temperature, the parameters of the second state of the battery are adjusted to reduce the reserved capacity reserved when the battery is in the third state, obtain the second release capacity, and increase the use capacity of the battery.
Optionally, after obtaining the additional increased first charge capacity when the battery is fully charged and increasing the usage capacity of the battery, the method of battery control further includes:
and if the capacity state of the battery is that the capacity is in the second preset capacity interval, using the first charging capacity.
Optionally, if the capacity status of the battery is that the capacity is within the second preset capacity interval, the battery usage capacity is updated based on the first charging capacity and the second discharging capacity.
Optionally, the second release capacity includes a third sub release capacity and/or a fourth sub release capacity, the third sub release capacity being a capacity of the battery releasable in a third state, the fourth sub release capacity being a capacity of the battery releasable in a fourth state.
Optionally, determining the second release capacity includes:
determining a third sub-release capacity of the battery at the battery temperature based on the battery temperature and a correspondence between the battery temperature and a reserved capacity of the battery in a third state;
determining a fourth sub-release capacity of the battery at the battery temperature based on the battery temperature and a correspondence between the battery temperature and a reserved capacity of the battery in a fourth state;
the second released capacity is determined based on a third sub-released capacity of the battery at the battery temperature and/or a fourth sub-released capacity of the battery at the battery temperature.
Optionally, the increased first charge capacity of the battery is determined based on the battery temperature and a correspondence of the battery temperature to the additionally increased charge capacity of the battery for full charge.
Optionally, after the reserved capacity reserved when the battery is in the third state is reduced, the second release capacity is obtained, and the use capacity of the battery is increased, the method for controlling the battery further includes:
and under the condition that the temperature of the battery is higher than a third preset temperature, increasing the reserved capacity reserved when the battery is in the third state so as to recover the reserved capacity when the battery is in the third state.
According to a second aspect of the present application, an embodiment of the present application provides an electronic device, including:
at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to cause the at least one processor to perform a method of battery control as in the first aspect or any implementation of the first aspect.
According to a third aspect of the present application, embodiments of the present application provide a computer-readable storage medium storing computer instructions for causing a computer to perform a method of battery control as in the first aspect or any embodiment of the first aspect.
The application discloses a battery control method, electronic equipment and a readable storage medium, which are characterized in that the use state, the battery temperature and the capacity state of a battery are obtained; if the use state, the battery temperature and the capacity state of the battery are determined to meet the preset conditions, adjusting parameters in the use state of the battery based on the battery temperature so as to increase the use capacity of the battery; therefore, when the battery is in a specific working condition, the use capacity of the battery can be increased by adjusting the parameters of the battery in the use state, so that the standby time of the battery in the specific working condition, such as a low-temperature low-capacity interval, is increased, and the user experience is improved.
The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.
Drawings
FIG. 1 is a flow chart of a method of battery control according to an embodiment of the application;
FIG. 2 is a schematic diagram of the battery usage capacity in an embodiment of the application;
fig. 3 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
The battery can be used at a lower temperature, particularly at a lower capacity, can rapidly trigger a discharge cut-off voltage, can rapidly power down to 0%, and is then shut down. The inventor discovers through studying the battery core characteristics that at lower temperature, the charging current of the battery needs to be limited, namely the charging speed of the battery is limited, but the full charge cut-off current can be reduced, so that the battery can be charged with more capacity at lower temperature during full charge; and at a lower temperature, the leakage current of the battery core can be reduced, so that the reserved capacity of the battery after shutdown can be dynamically adjusted according to the leakage current at the lower temperature, and the reserved capacity of the low voltage can be safely and reliably released. Thereby improving the service capacity of the battery at low temperature, especially at low temperature and low capacity.
Accordingly, an embodiment of the present application provides a method for controlling a battery, as shown in fig. 1, including:
s101, a battery usage state, a battery temperature, and a capacity state are acquired.
In the present embodiment, the use state of the battery includes, but is not limited to, a charge state, a discharge state, a standby state, a shutdown state, and the like.
In this embodiment, the battery temperature may be a battery surface temperature, a battery internal temperature.
In some embodiments, the battery temperature may be a cell temperature. The temperature of the battery can be determined by monitoring the temperature of the battery cell in real time through a temperature sensor.
In this embodiment, the capacity state of the battery is used to characterize a capacity interval in which the current capacity of the battery is located, for example, the capacity state of the battery is that the capacity is in a low capacity interval.
S102, if the use state of the battery, the battery temperature and the capacity state are determined to meet the preset conditions, parameters in the use state of the battery are adjusted based on the battery temperature so as to increase the use capacity of the battery.
In some embodiments, if the usage state of the battery is determined to be a charging state, the battery temperature is less than or equal to a first preset temperature, and the capacity state is determined to be a capacity within a first preset capacity interval, then the usage state of the battery, the battery temperature, and the capacity state are determined to satisfy preset conditions.
In some embodiments, if the usage state of the battery is determined to be a discharging state or a standby state, the battery temperature is less than or equal to a second preset temperature, and the capacity state is determined to be that the capacity is within a second preset capacity interval, then the usage state of the battery, the battery temperature, and the capacity state are determined to satisfy preset conditions.
In this embodiment, if it is determined that the usage state of the battery, the battery temperature and the capacity state satisfy the preset conditions, it is indicated that the battery is under the specific working condition, and parameters in the usage state of the battery, for example, the battery is in the charging state, can be adjusted based on the battery temperature, so that the full charge cut-off current of the battery can be reduced based on the battery temperature, and therefore, when the battery is fully charged, a more point capacity can be charged, and the usage capacity of the battery can be increased. For another example, when the battery is in a discharging state, the discharging cut-off voltage of the battery can be reduced based on the temperature of the battery, so that a part of reserved capacity in the under-voltage protection stage of the battery can be released, and the service capacity of the battery is increased.
The application discloses a battery control method, electronic equipment and a readable storage medium, which are characterized in that the use state, the battery temperature and the capacity state of a battery are obtained; if the use state, the battery temperature and the capacity state of the battery are determined to meet the preset conditions, adjusting parameters in the use state of the battery based on the battery temperature so as to increase the use capacity of the battery; therefore, when the battery is in a specific working condition, the use capacity of the battery can be increased by adjusting the parameters of the battery in the use state, so that the standby time of the battery in the specific working condition, such as a low-temperature low-capacity interval, is increased, and the user experience is improved.
In an optional embodiment, step S102, if it is determined that the usage state of the battery, the battery temperature and the capacity state meet the preset conditions, adjusts the parameters in the usage state of the battery based on the battery temperature to increase the usage capacity of the battery, includes:
s1021, if the battery usage state is the first state, the battery temperature is less than or equal to the first preset temperature, and the capacity state is that the capacity is in the first preset capacity zone, and based on the battery temperature, the parameters of the first state of the battery are adjusted, so that the additionally increased first charge capacity is obtained when the battery is fully charged, and the battery usage capacity is increased.
And/or the number of the groups of groups,
and S1022, if the use state of the battery is the second state, the battery temperature is less than or equal to the second preset temperature, and the capacity state is that the capacity is in the second preset capacity interval, adjusting the parameters of the second state of the battery based on the battery temperature so as to reduce the reserved capacity reserved when the battery is in the third state, obtain the second release capacity and increase the use capacity of the battery.
For S1021, in the present embodiment, the first state is a charged state.
In this embodiment, when the battery is in a charged state, parameters of the battery in a use state are adjusted based on the battery temperature, so that the full charge cutoff current of the battery is reduced based on the battery temperature. When the full charge cutoff current of the battery is reduced, the battery can be recharged with an additional first charge capacity f (T) in addition to the normal 100% capacity (normal capacity) at full charge, as shown in fig. 2.
In this embodiment, since the full charge cutoff current set by the battery is generally determined according to the highest temperature that the battery tolerates, the full charge cutoff current of the battery is reduced when the battery is charged and the usage capacity of the battery is increased when the battery is charged under normal conditions. Of course, the full charge cutoff current of the battery may be reduced only when the battery temperature is set to be lower than the target temperature, so that the use capacity of the battery may be increased when the battery is charged under a specific condition. Thus, the first preset temperature may be the highest temperature tolerated by the battery, e.g., 50 degrees; the target temperature at a preset lower temperature, for example, 10 degrees, may also be used.
In the present embodiment, the full charge cutoff current ic=ic 0-I (T) at the present battery temperature; ic0 is the full charge cut-off current set by the current battery; i (T) is a reducible off-current and increases as T decreases; so that Ic decreases as T decreases.
In this embodiment, the first preset capacity region is a capacity region when the battery is near full, for example, 95% -99%. This is because the first stage is constant current charging and the second stage is constant voltage charging when the battery is charged. By setting the full charge cutoff current of the battery to be reduced when the battery capacity is in the capacity section near the full charge, the battery can be immediately charged according to the reduced full charge cutoff current, and thus, much useless labor is avoided, for example, when the full charge cutoff current is reduced when the battery is charged to 50%, the user pulls out the power supply and does not charge the battery any more, and even if the full charge cutoff current of the battery is reduced, the battery is charged according to the constant current when the battery is charged to 50%, and the first charge capacity cannot be additionally obtained by reducing the full charge cutoff current of the battery.
In one implementation, the correspondence between the battery temperature and the reducible cutoff current may be determined through multiple tests, and the correspondence between the reducible cutoff current and the battery fully charged additional increased charge capacity may be determined, so as to calculate the correspondence between the battery temperature and the battery fully charged additional increased charge capacity. So that the increased first charge capacity of the battery can be determined based on the battery temperature and the correspondence of the battery temperature to the additionally increased charge capacity of the battery for full charge. That is, the battery temperature is brought into the correspondence between the battery temperature and the additional charge capacity of the battery fully charged, and the additional first charge capacity f (T) is calculated at the battery temperature.
In the implementation manner, the corresponding relation between the battery temperature and the additionally-increased charging capacity of the battery full charge is calculated, so that the calculation result is simple and quick when the additionally-increased first charging capacity of the battery full charge is calculated at the current battery temperature.
For step S1022, in the present embodiment, the second state is a discharge state or a standby state. The third state is an under-voltage recoverable protection state, the battery discharges, when the voltage reaches the voltage of the under-voltage recoverable protection state, the battery enters the third state, the power supply to the outside is stopped, and the inside of the battery can work.
In this embodiment, the second preset temperature is a lower temperature mainly for improving the endurance time of the battery at a low temperature. The second preset temperature is much smaller than the first preset temperature if the first preset temperature is the highest temperature that the battery tolerates, and may be the same as or different from the first preset temperature if the first preset temperature is the target temperature at a lower temperature, for example, the first preset temperature is set to 10 degrees and the second preset temperature is set to 5 degrees; as another example, the first preset temperature is set to 10 degrees and the second preset temperature is also set to 10 degrees.
In this embodiment, the second preset capacity region is a lower capacity region, for example, a 0% to 10% capacity region, mainly for improving the endurance of the battery at low capacity.
In this embodiment, when the battery is in a discharge state or a standby state, the parameters in the battery use state are adjusted based on the battery temperature, and the discharge cut-off voltage of the battery may be reduced based on the battery temperature. The discharge cut-off voltage of the battery is reduced, the reserved capacity of the battery in the under-voltage recoverable protection state can be reduced, the second release capacity is obtained, so that the battery temperature is smaller than or equal to the second preset temperature when the battery is in the second state, the capacity state is that the capacity is in the second preset capacity interval, and the use capacity of the battery can be increased.
In some embodiments, the second release capacity may be a third sub-release capacity, the third sub-release capacity being a capacity of the battery that is releasable in a third state.
In the present embodiment, it is possible to reduce only the reserved capacity of the battery from 0% capacity to under-voltage restorable protection (UVP), without changing the reserved capacity of the battery in the deep discharge permanent protection (CuD PF) state. So that the second release capacity is the capacity of the battery that is releasable in the third state.
In some embodiments, the second release capacity may be a fourth sub-release capacity, the fourth sub-release capacity being a capacity of the battery that is releasable in a fourth state.
In the present embodiment, the fourth state is a deep discharge unrecoverable protection state. When the voltage of the battery continues to decrease to the voltage reaching the deep discharge unrecoverable protection state, the battery enters a fourth state from the third state, wherein the voltage of the under-voltage recoverable protection state when the battery enters the third state is higher than the voltage of the deep discharge unrecoverable protection state when the battery enters the fourth state.
In this implementation, the reserved capacity of the battery from 0% capacity to under-voltage restorable protection (UVP) may not be changed, but only the reserved capacity of the battery in the deep discharge permanent protection (CuD PF) state may be reduced. So that the second released capacity is the capacity of the battery that is releasable in the fourth state.
In some embodiments, the second release capacity may be a third sub-release capacity and a fourth sub-release capacity. The third sub-discharge capacity is a capacity of the battery that is releasable in the third state, and the fourth sub-discharge capacity is a capacity of the battery that is releasable in the fourth state.
In this embodiment, the reserved capacity of the battery from 0% capacity to under-voltage recoverable protection (UVP) may be reduced to obtain a third sub-released capacity g (T), where g (T) is the capacity released in the under-voltage recoverable protection state; and the reserved capacity of the battery in the deep discharge permanent protection (CuD PF) state is reduced to obtain a fourth sub-release capacity h (T), wherein h (T) is the capacity released in the deep discharge unrecoverable protection state, as shown in fig. 2. So that the second released capacity is the sum of the third state releasable capacity and the fourth state releasable capacity of the battery. Thus, when the battery is in the second state in use, the battery temperature is less than or equal to the second preset temperature, and the capacity state is that the capacity is in the second preset capacity interval, the battery use capacity can be increased by g (T) and h (T).
In the present embodiment, if the battery obtains an additionally increased first charge capacity f (T) during the charge phase and the battery obtains second discharge capacities g (T) and h (T) during the discharge phase, the actual usage capacity (new update capacity) of the battery is f (T) +normal capacity (0% to 100%) +g (T) +h (T), as shown in fig. 2.
In this embodiment, in the battery charging stage, when the battery temperature is less than or equal to the first preset temperature and the capacity state is that the capacity is located in the first preset capacity interval, the full charge cutoff current of the battery is adjusted based on the battery temperature, so that the additionally increased first charge capacity can be obtained when the battery is fully charged, and the service capacity of the battery is increased; and/or, in the battery discharging stage or the standby state, when the battery temperature is less than or equal to the second preset temperature and the capacity state is that the capacity is located in the second preset capacity interval, the discharging cut-off voltage of the battery is adjusted based on the battery temperature, so that the reserved capacity reserved when the battery is in the under-voltage recoverable protection state can be reduced, the second release capacity is obtained, and the use capacity of the battery is increased. Therefore, the first charge capacity can be additionally obtained in the battery charging stage, and/or the second release capacity can be additionally obtained in the battery discharging/standby state, so that the use capacity of the battery under the specific working condition can be greatly improved, and the use time of the battery under the specific working condition can be prolonged.
In an alternative embodiment, in step S1021, to obtain an additional increased first charge capacity when the battery is fully charged, the method of controlling the battery further includes, after increasing the usage capacity of the battery:
and if the capacity state of the battery is that the capacity is in the second preset capacity interval, using the first charging capacity.
In this embodiment, the first charge capacity may be set only for use when the capacity of the battery is located in the second preset capacity zone in the discharge state or the standby state of the battery. Therefore, the capacity in each sub-capacity interval under the second preset capacity interval becomes more, the service time of the battery in each word capacity interval under the second preset capacity interval can be prolonged, and the user experience is improved.
In specific implementation, the first charging capacity may be determined first, and then the first charging capacity is evenly distributed to the use capacity of each sub-section of the battery capacity in the second preset capacity section, and the use capacity of each sub-section of the battery capacity in the second preset capacity section is updated, so that the first charging capacity is used when the capacity state of the battery is that the capacity is in the second preset capacity section.
In an alternative embodiment, if the capacity status of the battery is that the capacity is within the second preset capacity interval, the battery usage capacity is updated based on the first charge capacity and the second release capacity.
In this embodiment, the additional increased first charge capacity is obtained when the battery is fully charged during the charging process. And a first charge capacity is set for use when the capacity of the battery is located in a second preset capacity interval in a discharge state or a standby state of the battery.
In this embodiment, if the usage state of the battery is the second state, the battery temperature is less than or equal to the second preset temperature, and the capacity state is that the capacity is located in the second preset capacity interval, the reserved capacity reserved when the battery is in the third state is reduced, and the second release capacity is obtained.
In this embodiment, if the capacity state of the battery is that the capacity is located in the second preset capacity interval, the usage capacity of the battery, in which the capacity is located in the second preset capacity interval, is the sum of the original capacity, the first charging capacity, and the second releasing capacity in the second preset capacity interval.
In practice, the second release capacity may be determined first. A first charge capacity of the battery that is additionally increased upon charging is then determined. And then the first charging capacity and the second releasing capacity are averagely distributed to the use capacity of each sub-section with the battery capacity in the second preset capacity section so as to update the use capacity of each sub-section with the battery capacity in the second preset capacity section and realize the update of the use capacity with the battery capacity in the second preset capacity section.
In one implementation, determining the second release capacity includes:
determining a third sub-release capacity of the battery at the battery temperature based on the battery temperature and a correspondence between the battery temperature and a reserved capacity of the battery in a third state; determining a fourth sub-release capacity of the battery at the battery temperature based on the battery temperature and a correspondence between the battery temperature and a reserved capacity of the battery in a fourth state; the second released capacity is determined based on a third sub-released capacity of the battery at the battery temperature and/or a fourth sub-released capacity of the battery at the battery temperature.
In this implementation manner, it may be determined that the correspondence between the battery temperature and the reserved capacity in the third state of the battery is wu=wu0-g (T), where Wu is the reserved capacity in the third state of the battery, wu0 is the original reserved capacity in the third state of the battery, and g (T) is the third sub-release capacity. As T decreases, g (T) increases. g (T) may be dependent on the magnitude of the decrease in battery leakage current with decreasing temperature.
The corresponding relation between the battery temperature and the reserved capacity of the fourth state of the battery can be determined to be wp=wp 0-h (T), wherein Wp is the reserved capacity of the fourth state of the battery, wp0 is the original reserved capacity of the fourth state of the battery, and h (T) is the fourth sub-release capacity. As T decreases, h (T) increases. h (T) may be dependent on the magnitude of the decrease in battery leakage current with decreasing temperature.
In the implementation manner, the corresponding relation between the battery temperature and the reserved capacity of the battery in the third state is determined by determining the corresponding relation between the battery temperature and the reserved capacity of the battery in the fourth state, so that the third sub-release capacity and the fourth sub-release capacity can be rapidly calculated, and the second release capacity can be rapidly calculated.
In this embodiment, the first charge capacity and the second release capacity are used for the battery with a temperature less than or equal to the second preset temperature, and the capacity state is that the capacity is used in a second preset capacity interval, for example, the battery with a temperature less than or equal to 5 degrees, and the battery with a capacity of 0% -10% is used in a low capacity interval of less than 10%, and the capacities of [ f (T) +g (T) +h (T) ]/10 are increased every 1% subinterval, so that the endurance time experience of the low-capacity battery at a lower ambient temperature can be optimized.
In an alternative embodiment, in step S1022, to reduce the reserved capacity reserved when the battery is in the third state, and obtain the second release capacity, after increasing the usage capacity of the battery, the method for controlling the battery further includes:
and under the condition that the temperature of the battery is higher than a third preset temperature, increasing the reserved capacity reserved when the battery is in the third state so as to recover the reserved capacity when the battery is in the third state.
In this embodiment, the third preset temperature is normal temperature. When the temperature of the battery is higher than the first preset temperature, the temperature of the battery is increased, the leakage current of the battery is increased, the increased second release capacity is required to be released in time, the reserved capacity of the battery in the third state at normal temperature is recovered, and the battery is prevented from being damaged due to excessive discharge at normal temperature.
According to an embodiment of the present application, the present application also provides an electronic device and a readable storage medium.
FIG. 3 shows a schematic block diagram of an example electronic device 800 that may be used to implement an embodiment of the application. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the applications described and/or claimed herein.
As shown in fig. 3, the device 800 includes a computing unit 801 that can perform various appropriate actions and processes according to a computer program stored in a Read Only Memory (ROM) 802 or a computer program loaded from a storage unit 808 into a Random Access Memory (RAM) 803. In the RAM 803, various programs and data required for the operation of the device 800 can also be stored. The computing unit 801, the ROM 802, and the RAM 803 are connected to each other by a bus 804. An input/output (I/O) interface 805 is also connected to the bus 804.
Various components in device 800 are connected to I/O interface 805, including: an input unit 806 such as a keyboard, mouse, etc.; an output unit 807 such as various types of displays, speakers, and the like; a storage unit 808, such as a magnetic disk, optical disk, etc.; and a communication unit 809, such as a network card, modem, wireless communication transceiver, or the like. The communication unit 809 allows the device 800 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.
The computing unit 801 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of computing unit 801 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various computing units running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 801 performs the various methods and processes described above, such as a battery-controlled method. For example, in some embodiments, the method of battery control may be implemented as a computer software program tangibly embodied on a machine-readable medium, such as the storage unit 808. In some embodiments, part or all of the computer program may be loaded and/or installed onto device 800 via ROM 802 and/or communication unit 809. When the computer program is loaded into RAM 803 and executed by computing unit 801, one or more steps of the battery control method described above may be performed. Alternatively, in other embodiments, the computing unit 801 may be configured to perform the battery control method in any other suitable manner (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems-on-a-chip (SOCs), complex Programmable Logic Devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
Program code for carrying out methods of the present application may be written in any combination of one or more programming languages. These program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus such that the program code, when executed by the processor or controller, causes the functions/operations specified in the flowchart and/or block diagram to be implemented. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present application, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), and the internet.
The computer system may include a client and a server. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server may be a cloud server, a server of a distributed system, or a server incorporating a blockchain.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present application may be performed in parallel, sequentially, or in a different order, provided that the desired results of the disclosed embodiments are achieved, and are not limited herein.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A method of battery control, comprising:
acquiring the use state, the battery temperature and the capacity state of a battery;
and if the use state, the battery temperature and the capacity state of the battery are determined to meet the preset conditions, adjusting parameters in the use state of the battery based on the battery temperature so as to increase the use capacity of the battery.
2. The battery control method according to claim 1, wherein if it is determined that the usage state of the battery, the battery temperature, and the capacity state satisfy preset conditions, adjusting parameters in the battery usage state based on the battery temperature to increase the usage capacity of the battery, comprises:
if the using state of the battery is a first state, the temperature of the battery is smaller than or equal to a first preset temperature, and the capacity state is that the capacity is in a first preset capacity interval, and based on the battery temperature, the parameters of the first state of the battery are adjusted so as to obtain additionally increased first charging capacity when the battery is fully charged, and the using capacity of the battery is increased;
and/or
If the use state of the battery is the second state, the battery temperature is less than or equal to a second preset temperature, the capacity state is that the capacity is in a second preset capacity interval, and based on the battery temperature, parameters of the second state of the battery are adjusted so as to reduce reserved capacity reserved when the battery is in the third state, obtain a second release capacity and increase the use capacity of the battery.
3. The method of battery control according to claim 2, further comprising, after increasing the usage capacity of the battery, after obtaining an additionally increased first charge capacity to fully charge the battery:
and if the capacity state of the battery is that the capacity is in the second preset capacity interval, using the first charging capacity.
4. The method for battery control according to claim 2,
and if the capacity state of the battery is that the capacity is in a second preset capacity interval, updating the battery use capacity based on the first charging capacity and the second releasing capacity.
5. The method of battery control according to claim 2, the second released capacity comprising a third sub-released capacity and/or a fourth sub-released capacity, the third sub-released capacity being a third state releasable capacity of the battery, the fourth sub-released capacity being a fourth state releasable capacity of the battery.
6. The battery control method of claim 2, determining the second release capacity comprising:
determining a third sub-release capacity of the battery at the battery temperature based on the battery temperature and a corresponding relation between the battery temperature and a reserved capacity of the battery in a third state;
determining a fourth sub-release capacity of the battery at the battery temperature based on the battery temperature and a corresponding relation between the battery temperature and a reserved capacity of the battery in a fourth state;
the second released capacity is determined based on a third sub-released capacity of the battery at the battery temperature and/or a fourth sub-released capacity of the battery at the battery temperature.
7. The method for battery control according to claim 2,
and determining the increased first charge capacity of the battery based on the battery temperature and the corresponding relation between the battery temperature and the additionally increased charge capacity of the battery in full charge.
8. The method of battery control according to claim 2, further comprising, after increasing the used capacity of the battery, after reserving a capacity reserved to decrease the battery to a third state and obtaining a second release capacity:
and under the condition that the temperature of the battery is higher than a third preset temperature, increasing the reserved capacity reserved when the battery is in the third state so as to recover the reserved capacity when the battery is in the third state.
9. An electronic device, comprising:
at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to cause the at least one processor to perform the battery control method of any one of claims 1-8.
10. A computer readable storage medium storing computer instructions for causing a computer to perform the battery control method according to any one of claims 1-8.
CN202310804055.7A 2023-06-30 2023-06-30 Battery control method, electronic equipment and readable storage medium Pending CN116759669A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310804055.7A CN116759669A (en) 2023-06-30 2023-06-30 Battery control method, electronic equipment and readable storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310804055.7A CN116759669A (en) 2023-06-30 2023-06-30 Battery control method, electronic equipment and readable storage medium

Publications (1)

Publication Number Publication Date
CN116759669A true CN116759669A (en) 2023-09-15

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Country Status (1)

Country Link
CN (1) CN116759669A (en)

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