CN117375131A - Battery temperature control method, device, terminal and storage medium - Google Patents
Battery temperature control method, device, terminal and storage medium Download PDFInfo
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- CN117375131A CN117375131A CN202210774930.7A CN202210774930A CN117375131A CN 117375131 A CN117375131 A CN 117375131A CN 202210774930 A CN202210774930 A CN 202210774930A CN 117375131 A CN117375131 A CN 117375131A
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Classifications
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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
- H02J7/007188—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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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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
- H01M10/443—Methods for charging or discharging in response to temperature
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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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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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
- H02J7/00309—Overheat or overtemperature protection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The embodiment of the disclosure discloses a battery temperature control method, a device, an electronic device and a storage medium, wherein the battery temperature control method comprises the following steps: acquiring temperature data of a battery; determining a current working scene of the battery, and determining an upper limit value corresponding to the temperature data in the current working scene; and when the temperature data exceeds the upper limit value, adjusting the working parameter associated with the temperature data based on the upper limit value. Therefore, the temperature detection with pertinence can be more flexibly carried out for the batteries in different working scenes based on different corresponding upper limit values in the different working scenes of the batteries, so that the temperature change risk of the batteries in different scenes is accurately determined and reduced based on the different upper limit values, and the safety of the batteries is improved.
Description
Technical Field
The present disclosure relates to the field of electronics, but not limited to the field of electronics, and in particular, to a battery temperature control method, device, terminal, and storage medium.
Background
In the related art, for a battery and an independent battery module in an electronic device, safety protection of the battery and the independent battery module is often controlled by a fixed temperature value, for example, when the battery temperature reaches a certain fixed temperature threshold, a power supply is turned off or the device in which the battery is located is controlled to be turned off. However, in practical application, the scheme often has larger errors, so that accurate temperature monitoring and control cannot be realized on batteries under different working conditions, complicated and various temperature change conditions of the batteries in an actual working scene cannot be comprehensively detected, and potential hazards still exist on the safety of the batteries.
Disclosure of Invention
The embodiment of the disclosure discloses a battery temperature control method, a device, a terminal and a storage medium.
According to a first aspect in an embodiment of the present disclosure, there is provided a battery temperature control method including:
acquiring temperature data of a battery;
determining a current working scene of the battery, and determining an upper limit value corresponding to the temperature data in the current working scene;
and when the temperature data exceeds the upper limit value, adjusting the working parameter associated with the temperature data based on the upper limit value.
In one embodiment, the determining the current operating scenario of the battery includes:
and determining the current working scene of the battery based on the working state type of the battery and the working parameters of the battery.
In one embodiment, the determining the current operation scene of the battery based on the operation state type of the battery and the operation parameter of the battery includes:
determining a type of operating state of the battery based on a charging current value of the battery; the working state types comprise: a charged state, a discharged state, or a stationary state;
and determining the current working scene of the battery based on the working state type and the working parameters of the battery.
In one embodiment, the determining the current operation scene of the battery based on the operation state type and the operation parameter of the battery includes:
when the working state type is a charging state, determining a charging voltage value of the battery;
and determining the current working scene of the battery based on the charging voltage value.
In one embodiment, the acquiring temperature data of the battery includes:
and acquiring temperature data of the battery within a preset time period.
In one embodiment, the acquiring temperature data of the battery for a preset time period includes:
acquiring the temperature rise of the battery within a preset time period;
and determining the temperature rising rate based on the temperature rising amount and the preset duration.
In one embodiment, when the temperature data exceeds the upper limit value, adjusting the operating parameter associated with the temperature data based on the upper limit value includes:
when the temperature rising rate exceeds the upper limit value, acquiring a parameter adjusting strategy corresponding to the upper limit value;
an operating parameter associated with the rate of temperature rise is adjusted based on the parameter adjustment strategy.
In one embodiment, the adjusting the operating parameter associated with the rate of temperature rise based on the parameter adjustment strategy includes:
And reducing the saturated charging voltage and/or charging power of the battery based on the parameter adjustment amount indicated by the parameter adjustment strategy.
In one embodiment, the upper limit value includes: a first upper limit value and a second upper limit value; the first upper limit value is smaller than the second upper limit value;
the reducing the saturated charging voltage and/or charging power of the battery based on the parameter adjustment amount indicated by the parameter adjustment strategy comprises the following steps:
when the temperature rising rate exceeds the first upper limit value and does not exceed the second upper limit value, reducing the saturated charging voltage and/or charging power of the battery according to a first parameter adjustment amount indicated by a parameter adjustment strategy corresponding to the first upper limit value;
and when the temperature rising rate exceeds the second upper limit value, reducing the saturated charging voltage and/or charging power of the battery according to the first parameter adjustment quantity indicated by the parameter adjustment strategy corresponding to the second upper limit value.
In one embodiment, the first parameter adjustment is less than the second parameter adjustment.
According to a second aspect of embodiments of the present disclosure, there is provided a temperature control apparatus, the apparatus comprising:
an acquisition unit configured to acquire temperature data of a battery;
The determining unit is used for determining the current working scene of the battery and determining the upper limit value corresponding to the temperature data in the current working scene;
and the adjusting unit is used for adjusting the working parameters related to the temperature data based on the upper limit value when the temperature data exceeds the upper limit value.
In an embodiment, the determining unit is specifically configured to:
and determining the current working scene of the battery based on the working state type of the battery and the working parameters of the battery.
In an embodiment, the determining unit is specifically configured to:
determining a type of operating state of the battery based on a charging current value of the battery; the working state types comprise: a charged state, a discharged state, or a stationary state;
and determining the current working scene of the battery based on the working state type and the working parameters of the battery.
In an embodiment, the determining unit is specifically configured to:
when the working state type is a charging state, determining a charging voltage value of the battery;
and determining the current working scene of the battery based on the charging voltage value.
In one embodiment, the acquiring unit is specifically configured to:
And acquiring temperature data of the battery within a preset time period.
In one embodiment, the acquiring unit is specifically configured to:
acquiring the temperature rise of the battery within a preset time period;
and determining the temperature rising rate based on the temperature rising amount and the preset duration.
In one embodiment, the adjusting unit is specifically configured to:
when the temperature rising rate exceeds the upper limit value, acquiring a parameter adjusting strategy corresponding to the upper limit value;
an operating parameter associated with the rate of temperature rise is adjusted based on the parameter adjustment strategy.
In one embodiment, the adjusting unit is specifically configured to:
and reducing the saturated charging voltage and/or charging power of the battery based on the parameter adjustment amount indicated by the parameter adjustment strategy.
In one embodiment, the upper limit value includes: a first upper limit value and a second upper limit value; the first upper limit value is smaller than the second upper limit value;
the adjusting unit is specifically used for:
when the temperature rising rate exceeds the first upper limit value and does not exceed the second upper limit value, reducing the saturated charging voltage and/or charging power of the battery according to a first parameter adjustment amount indicated by a parameter adjustment strategy corresponding to the first upper limit value;
And when the temperature rising rate exceeds the second upper limit value, reducing the saturated charging voltage and/or charging power of the battery according to a second parameter adjustment amount indicated by a parameter adjustment strategy corresponding to the second upper limit value.
In one embodiment, the first parameter adjustment is less than the second parameter adjustment.
According to a third aspect of embodiments of the present disclosure, there is provided a terminal comprising:
a processor;
a memory for storing the processor-executable instructions;
wherein the processor is configured to: for executing the executable instructions, implementing the methods described in any of the embodiments of the present disclosure.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer storage medium storing a computer executable program which, when executed by a processor, implements the method of any embodiment of the present disclosure.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
in an embodiment of the present disclosure, temperature data of a battery is acquired; determining a current working scene of the battery, and determining an upper limit value corresponding to the temperature data in the current working scene; and when the temperature data exceeds the upper limit value, adjusting the working parameter associated with the temperature data based on the upper limit value. Therefore, the corresponding upper limit value is determined based on the current working scene of the battery, so that the upper limit value for judging whether the battery has temperature safety risk is more matched with the actual working condition of the battery, and the flexibility and accuracy of battery temperature monitoring under different working scenes can be improved. On the basis, based on different upper limit values under different working conditions, the working parameters are adjusted, the temperature of the battery can be controlled more flexibly and accurately, and the safety risk of the battery is comprehensively reduced.
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 invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a flow chart illustrating a battery temperature control method according to an exemplary embodiment;
fig. 2 is a schematic diagram illustrating a related art battery temperature protection method according to an exemplary embodiment;
FIG. 3 is a flow chart illustrating a method of battery temperature control according to an exemplary embodiment;
FIG. 4 is a flow chart illustrating a method of battery temperature control according to an exemplary embodiment;
fig. 5 is a flow chart illustrating a battery temperature control method according to an exemplary embodiment;
fig. 6 is a flow chart illustrating a battery temperature control method according to an exemplary embodiment;
fig. 7 is a schematic structural view of a battery temperature control device according to an exemplary embodiment;
fig. 8 is a block diagram of a terminal according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of the invention as detailed in the accompanying claims.
For ease of understanding by those skilled in the art, the embodiments of the present disclosure enumerate a plurality of implementations to clearly illustrate the technical solutions of the embodiments of the present disclosure. Of course, those skilled in the art will appreciate that the various embodiments provided in the embodiments of the disclosure may be implemented separately, may be implemented in combination with the methods of other embodiments of the disclosure, and may be implemented separately or in combination with some methods of other related technologies; the embodiments of the present disclosure are not so limited.
As shown in fig. 1, the method for controlling the temperature of a battery according to the present embodiment may include:
S110: acquiring temperature data of a battery;
s120: determining a current working scene of the battery, and determining an upper limit value corresponding to the temperature data in the current working scene;
s130: and when the temperature data exceeds the upper limit value, adjusting the working parameter associated with the temperature data based on the upper limit value.
In the embodiment of the disclosure, the battery may be a battery with power supply and charging functions, for example, a battery in a terminal device such as a mobile phone, a tablet computer or a smart watch, or an independent battery module. The battery temperature control method in the embodiment of the present disclosure may be applied to a processor in a terminal device in which a battery is located, or may also be applied to a processor in an independent battery module, etc., which is not limited in this embodiment.
In the related art, as shown in fig. 2, products such as communication products and the like adopt modes such as power failure or stop working when the temperature of a battery reaches a fixed temperature threshold value by setting the fixed temperature threshold value. For example, when the battery temperature reaches 45 ℃, charging is stopped, and when the battery temperature reaches 60 ℃, the system is shut down or the power supply is cut off.
In the embodiment of the disclosure, the temperature data may be a current temperature value of the battery, or an average value of the temperature of the battery within a preset period of time, or may be a parameter indicating a temperature change condition of the battery, for example, at least one of a temperature change amplitude, a temperature change rate, a temperature change trend, and the like. The temperature change trend may be a temperature increase trend or a temperature decrease trend, or may be an increase rate of the temperature change rate of the plurality of sub-periods within the preset duration.
For example, when the preset duration is 10s, the plurality of sub-time periods may be time periods of one time period every 2s, and the rate of increase of the temperature change rate may be the rate of increase of 5 temperature change rates corresponding to 5 sub-time periods included in the preset duration within the preset duration.
By way of example, the temperature data may be temperature data within a preset time period, such as a temperature change amount or a temperature change rate within 5 minutes, or the like.
In one embodiment, the temperature data of the battery may be temperature data of a predetermined position on the battery, or may be ambient temperature data within a predetermined range of the battery. For example, the ambient temperature data within a predetermined range of the battery may be ambient temperature data within a range having a predetermined length, for example, 10cm, with the center radius of the battery.
For example, the temperature data at a predetermined position on the battery may be temperature data at a position on the surface or inside of the battery or at an electrode. For example, temperature data at a predetermined position on the battery may be acquired by a temperature sensor or a temperature-sensing camera or the like. It will be appreciated that the temperature data at the predetermined location on the battery may be temperature data at the predetermined location on the battery for a predetermined period of time.
In one embodiment, the determining the upper limit value corresponding to the temperature data of the battery in the current working scene may be determining the current working scene according to the working state type and the working parameter, and determining the upper limit value corresponding to the temperature data in the current working scene. The determining the current operating scenario according to the operating state type and the operating parameter may include determining the current operating scenario according to the operating state type and at least one of a charging voltage value and a power consumption voltage value. For example, when the operating state type is a charging state, the current operating scenario may be determined according to the charging voltage value.
For example, when the charging Voltage value is lower than the first Voltage threshold, the current operating scenario is a Low Voltage (LV) charging scenario; when the charging Voltage value is higher than or equal to the first Voltage threshold and lower than the second Voltage threshold, the current working scene is a Medium Voltage (MV) charging scene; when the charging Voltage value is higher than or equal to the second Voltage threshold, the current operation scenario is a High Voltage (HV) charging scenario, and so on.
In one embodiment, the temperature data exceeds the upper limit value, and a flag (flag) signal corresponding to the upper limit value may be triggered. For example, each upper limit value corresponds to a flag signal, and when the temperature data reaches the upper limit value, the corresponding flag signal can be triggered and detected.
In an embodiment, the upper limit values of the temperature data corresponding to different working scenarios are different, for example, when the temperature data is a temperature rising rate, the order of the upper limit values of the temperature data corresponding to the multiple working scenarios from high to low may be sequentially: high-voltage charging scene, medium-voltage charging scene, low-voltage charging scene, working scene corresponding to discharging state, working scene corresponding to standing state.
For example, when the temperature data is a temperature rising rate, the upper limit value of the corresponding temperature rising rate may be 5 ℃/10s in the working scenario where the battery is in a stationary state. In a working scenario where the battery is in a discharged state, the corresponding upper limit of the temperature rise rate may be 8 ℃/10s. The upper limit of the corresponding temperature rising rate can be 10 ℃/10s when the battery is in a low-voltage charging scene, and the upper limit of the corresponding temperature rising rate can be 15 ℃/10s when the battery is in a high-voltage charging scene.
In one embodiment, the operating parameters associated with the temperature data may include operating parameters that are highly correlated to the battery temperature, e.g., operating parameters that are positively correlated to the battery temperature, etc., may include at least one of a charging voltage, a charging rate, and a charging power, etc.
In one embodiment, adjusting the operating parameter may include increasing or decreasing the operating parameter. Adjusting the operating parameter associated with the temperature data based on the upper limit value may include adjusting the operating parameter associated with the temperature data based on a parameter adjustment amount or a parameter adjustment rate corresponding to the upper limit value.
For example, the upper limit value may be positively correlated with the parameter adjustment amount or the parameter adjustment rate. The parameter adjustment rate may be an average adjustment rate of the parameter in the target period, or a rate at which the operating parameter is reduced to the target parameter value in the target period, or the like. For example, the higher the upper limit value, the higher the corresponding parameter adjustment amount and/or parameter adjustment rate may be.
Therefore, the upper limit value corresponding to the current working scene of the battery is determined based on different working scenes of the battery, so that the upper limit value for judging whether the battery has temperature safety risks is more matched with the actual working condition of the battery, and the flexibility and the accuracy of monitoring the battery temperature in different working scenes can be improved. On the basis, based on different upper limit values under different working conditions, the working parameters are adjusted, the temperature of the battery can be controlled more flexibly and accurately, and the safety risk of the battery is comprehensively reduced.
It should be noted that, as those skilled in the art may understand, the methods provided in the embodiments of the present disclosure may be performed alone or together with some methods in the embodiments of the present disclosure or some methods in the related art.
In some embodiments, as shown in fig. 3, the step S120 may include:
s121: and determining the current working scene of the battery based on the working state type of the battery and the working parameters of the battery, and determining the upper limit value corresponding to the temperature data in the current working scene.
In one embodiment, the operating state type of the battery may include a charged state, a discharged state, or a stationary state. The charging state may be that the charging current of the battery is greater than the power consumption current in the charging process, or the charging current is higher than the power consumption current by a preset value, that is, the battery is in a state of storing electric quantity.
The discharging state may be that the charging current of the battery is smaller than the power consumption current or the power consumption current is higher than the preset charging current value in the charging process, or the battery is in the power consumption state in the non-charging process, that is, the battery is in the power consumption state.
The standing state may be that the charging current of the battery is equal to the power consumption current in the charging process, or the difference value between the charging current and the power consumption current is smaller than a preset value, for example (-10, 10) mA, etc., that is, the battery is in a state of balanced charge and discharge of electric quantity.
In one embodiment, the operation State type may be determined according to a current charging and/or power consumption condition of the battery, for example, the operation State type may be determined according to at least one of a charging current value, a power consumption current value, a charging power, a power consumption power, and a State of Charge (SOC) change condition of the battery.
In one embodiment, the operating parameter may be a current charge and/or discharge parameter of the battery, and may include, for example, at least one of a current charge voltage value, a consumption voltage value, a charge power, a consumption power, an SOC, and a State of Health (SOH), etc. of the battery.
In one embodiment, determining the current operating scenario based on the operating state type and the operating parameter may include determining the current operating scenario based on the operating state type and at least one of a charging voltage value and a power consumption voltage value. For example, when the operating state type is a charging state, the current operating scenario may be determined according to the charging voltage value.
For example, when the charging Voltage value is lower than the first Voltage threshold, the current operating scenario is a Low Voltage (LV) charging scenario; when the charging Voltage value is higher than or equal to the first Voltage threshold and lower than the second Voltage threshold, the current working scene is a Medium Voltage (MV) charging scene; when the charging Voltage value is higher than or equal to the second Voltage threshold, the current operation scenario is a High Voltage (HV) charging scenario, and so on.
Therefore, based on the working state type and the working parameters, the working scene of the battery can be judged more accurately, so that the upper limit value which is more matched with the current working condition of the battery can be obtained according to the corresponding relation between the actual working condition of the battery and the upper limit value, and the temperature monitoring is more sensitive and accurate.
It should be noted that, as those skilled in the art may understand, the methods provided in the embodiments of the present disclosure may be performed alone or together with some methods in the embodiments of the present disclosure or some methods in the related art.
In some embodiments, as shown in fig. 4, the step S121 may include:
s1211: determining a type of operating state of the battery based on a charging current value of the battery; the working state types comprise: a charged state, a discharged state, or a stationary state;
s1212: and determining the current working scene of the battery based on the working state type and the working parameters of the battery, and determining the upper limit value corresponding to the temperature data in the current working scene.
In the disclosed embodiments, the charging current value of the battery may be an instantaneous current value for charging the battery, such as an instantaneous current value detected at the charging end of the battery. The determination of the operating state type of the battery based on the charging current value of the battery may be based on the charging current value of the battery and a preset current threshold, or may be based on the charging current value of the battery and charging current value ranges corresponding to a plurality of operating state types.
In one embodiment, determining the operating state type of the battery based on the charging current value of the battery and a preset current threshold value may include: when the charging current value is larger than the first current threshold value, the working state type of the battery can be determined to be a charging state; when the charging current value is smaller than or equal to the first current threshold value and larger than the second current threshold value, the working state type of the battery can be determined to be a standing state; when the charging current value is less than or equal to the second current threshold value, the working state type of the battery can be determined to be a discharging state.
Illustratively, the first current threshold is greater than the second current threshold, e.g., the first current threshold may be 1A, the second current threshold may be 100mA, etc.
In one embodiment, determining the operating state type of the battery based on the charging current value of the battery and the charging current value ranges corresponding to the plurality of operating state types may include: and determining the corresponding working state type based on the charging current value range in which the charging current value falls. For example, the charging current value range corresponding to the discharging state is (0, 100 mA), the charging current value range corresponding to the standing state is (100 mA, 1A), the charging current value range corresponding to the state of charge is (1A, +++) at this time, if the charge current value of the battery is 1.5A, the operating state type of the battery is determined to be a charged state.
Therefore, the working state type of the battery can be identified more accurately and rapidly based on the charging current value, and the corresponding upper limit value of the temperature data can be determined accurately.
In one embodiment, the determining the upper limit value corresponding to the temperature data in the current working scenario may include:
and determining at least one upper limit value corresponding to the current working scene according to the association relation between the plurality of working scenes and the upper limit values corresponding to the temperature data.
In an embodiment of the present disclosure, determining, based on the operation state type and the operation parameter of the battery, a current operation scenario of the battery may include: determining the type of the working state of the battery; and determining the current working scene of the battery based on the working parameters under the working state type. For example, the operation state type of the battery is determined, and the operation state type of the battery may be determined based on the charge current value of the battery.
In one embodiment, the upper limit value corresponding to the temperature data in different working scenarios may be different, for example, the upper limit value corresponding to the temperature data in the low-voltage charging scenario may be higher than the upper limit value corresponding to the temperature data in the high-voltage charging scenario, etc. The upper limit value corresponding to the temperature data in one working scene can be one or two or more. For example, when the temperature data in each working scene corresponds to the first upper limit value and the second upper limit value, the first upper limit value is lower than the second upper limit value, and then the first upper limit value may represent a standard value of the temperature data in the working scene reaching the standard, and the second upper limit value may represent a standard value of the temperature data in the working scene seriously exceeding the standard, and so on.
In one embodiment, the operating parameter may be a current charge and/or discharge parameter of the battery, and may include, for example, at least one of a current charge voltage value, a consumption voltage value, a charge power, a consumption power, an SOC, an SOH, and the like of the battery.
In some embodiments, the determining the current operating scenario of the battery based on the operating state type and the operating parameter of the battery includes:
when the working state type is a charging state, determining a charging voltage value of the battery;
and determining the current working scene of the battery based on the charging voltage value.
In one embodiment, determining the current operating scenario of the battery based on the operating parameters under the operating state type may include: and determining the current working scene of the battery based on at least one of the charging voltage value, the charging power, the power consumption voltage value and the power consumption power under the working state type. For example, when the operating state type is a charging state, a charging voltage value of the battery may be determined, and a current operating scenario may be determined according to the charging voltage value in the charging state.
For example, when the charging Voltage value is lower than the first Voltage threshold, the current operating scenario is a Low Voltage (LV) charging scenario; when the charging Voltage value is higher than or equal to the first Voltage threshold and lower than the second Voltage threshold, the current working scene is a Medium Voltage (MV) charging scene; when the charging Voltage value is higher than or equal to the second Voltage threshold, the current operation scenario is a High Voltage (HV) charging scenario, and so on.
Here, the first voltage threshold is smaller than the second voltage threshold. For example, the first voltage threshold may be 3V, the second voltage threshold may be 4.2V, etc.
In one embodiment, when the operation state type is a discharge state or a rest state, the operation scenario may also be determined according to a charge voltage value in the discharge state or the rest state.
It should be noted that, as those skilled in the art may understand, the methods provided in the embodiments of the present disclosure may be performed alone or together with some methods in the embodiments of the present disclosure or some methods in the related art.
In some embodiments, as shown in fig. 5, the S110 may include:
s111: and acquiring temperature data of the battery within a preset time period.
In the embodiment of the present disclosure, the preset duration may be a preset duration before the current time, where the preset duration may be a fixed value, for example, 5s, 10s, or 1min, or the preset duration may also be determined according to a temperature value of the current battery, or the preset duration may also be determined according to a historical temperature change condition of the battery.
In one embodiment, the preset duration is determined according to the temperature value of the current battery, and may be positive correlation or negative correlation between the preset duration and the temperature value of the current battery. For example, the higher the current battery temperature value, the higher the risk that the battery may exist, so the longer the preset time period is, the more favorable for determining the overall temperature change condition of the battery, or the shorter the preset time period is, the more favorable for rapidly monitoring the risk of rapid temperature rise of the battery in a short time.
In one embodiment, the preset duration is determined according to a temperature value of the current battery, and may be that the preset duration is positively related to the battery temperature when the current battery temperature is in the first range, and the preset duration is negatively related to the battery temperature when the current battery temperature is in the second range. For example, the first range may be smaller than the second range, thereby more flexibly risking a tendency to monitor overall temperature changes or rapid temperature increases based on different preset durations in different temperature ranges.
In one embodiment, the preset time period is determined according to the historical temperature change condition of the battery, and may include: and determining the preset time length according to the average value of the historical preset time length adopted in the historical temperature change condition of the battery. For example, the preset time period may be an average value of the historical preset time period or determined according to the average value and the current battery temperature.
In one embodiment, the preset time period is determined according to the average value of the historical preset time period and the current battery temperature, and the correction amount of the average value of the historical preset time period can be determined based on the current battery temperature, and the preset time period is based on the historical preset time period and the correction amount.
For example, the higher the current battery temperature, the higher the correction amount may be, and the preset time period may be the sum of the average value and the correction amount added.
It should be noted that, as those skilled in the art may understand, the methods provided in the embodiments of the present disclosure may be performed alone or together with some methods in the embodiments of the present disclosure or some methods in the related art.
In some embodiments, the S111 may include:
acquiring the temperature rise of the battery within a preset time period;
and determining the temperature rising rate based on the temperature rising amount and the preset duration.
In the embodiment of the disclosure, the temperature rising rate may represent the rising speed of the battery temperature within the preset time period, and the higher the temperature rising rate, the higher the safety risk of the battery. The temperature rise rate may be a temperature rise per unit time obtained by dividing the temperature rise by a preset time period, and may be, for example, x ℃/10s.
In one embodiment, the obtaining the temperature rise of the battery within the preset time period may be obtaining the temperature rise of the battery above the preset temperature within the preset time period. For example, the corresponding temperature rise of the battery temperature after exceeding the preset temperature in the preset time period is obtained. For example, if the preset temperature is 40 ℃, the temperature rise after the battery temperature reaches 40 ℃ in the preset time period is obtained. For example, when the battery temperature at the present time is 50 ℃, the temperature rise amount is 10 ℃. Therefore, the temperature which needs to be initially started to be early-warned and monitored is accurately monitored based on the preset temperature, so that detection and calculation for the temperature value which does not reach a higher value can be reduced, and the accuracy of early-warning of the higher temperature is improved.
In one embodiment, determining the temperature rise rate based on the temperature rise amount and the preset time period may include: and determining the temperature rising rate based on the temperature rising amount and the time interval from the first time when the battery temperature reaches the preset temperature to the current time in the preset time. For example, when the preset time period is 1min, the time interval from the first time point when the battery temperature reaches the preset temperature to the current time point in the preset time period is 20s, and the temperature rising rate is determined to be the temperature rising amount/20 s.
Therefore, the risk existing in the battery temperature rising condition can be accurately reflected based on the temperature rising rate, and the related risk is detected more timely under the condition that the temperature does not reach a higher threshold value but the temperature rising rate is higher, so that the sensitivity to the temperature rising risk is further improved.
It should be noted that, as those skilled in the art may understand, the methods provided in the embodiments of the present disclosure may be performed alone or together with some methods in the embodiments of the present disclosure or some methods in the related art.
In some embodiments, said adjusting the operating parameter associated with said temperature data based on said upper limit value when said temperature data exceeds said upper limit value comprises:
When the temperature rising rate exceeds the upper limit value, acquiring a parameter adjusting strategy corresponding to the upper limit value;
an operating parameter associated with the rate of temperature rise is adjusted based on the parameter adjustment strategy.
In the embodiment of the present disclosure, the parameter adjustment policy may be a parameter adjustment manner set for different working scenarios, that is, the parameter adjustment policy corresponds to the working scenario and the upper limit value one by one. Wherein the parameter adjustment strategy may comprise a parameter adjustment amount and/or a parameter adjustment rate, etc., such as at least one of a parameter decrease amount, a parameter decrease rate, a parameter lift amount, a parameter lift rate, etc.
In one embodiment, the adjusting the operating parameter associated with the rate of temperature rise based on the parameter adjustment strategy includes: and reducing the saturated charging voltage and/or charging power of the battery based on the parameter adjustment amount indicated by the parameter adjustment strategy.
Here, the saturated charging voltage may be a charging voltage when the battery is charged to a saturation rate, and decreasing the saturated charging voltage and the charging power may decrease heat generated during the battery charging process, thereby decreasing the battery temperature.
In one embodiment, the parameter adjustment amount and/or the parameter adjustment rate may be associated with an upper limit value, e.g., the parameter adjustment amount and/or the parameter adjustment rate may be positively correlated with the upper limit value. For example, the higher the upper limit value corresponding to the current working scenario, the higher the risk that the battery exists when the temperature rising rate exceeds the upper limit value, the higher the parameter adjustment amount and/or the parameter adjustment rate corresponding to the temperature rising rate may be, so that the reduction of the battery temperature may be achieved more substantially or more rapidly.
It should be noted that, as those skilled in the art may understand, the methods provided in the embodiments of the present disclosure may be performed alone or together with some methods in the embodiments of the present disclosure or some methods in the related art.
In some embodiments, the upper limit value includes: a first upper limit value and a second upper limit value; the first upper limit value is smaller than the second upper limit value;
the reducing the saturated charging voltage and/or charging power of the battery based on the parameter adjustment amount indicated by the parameter adjustment strategy comprises the following steps:
when the temperature rising rate exceeds the first upper limit value and does not exceed the second upper limit value, reducing the saturated charging voltage and/or charging power of the battery according to a first parameter adjustment amount indicated by a parameter adjustment strategy corresponding to the first upper limit value;
and when the temperature rising rate exceeds the second upper limit value, reducing the saturated charging voltage and/or charging power of the battery according to a second parameter adjustment amount indicated by a parameter adjustment strategy corresponding to the second upper limit value.
In the embodiment of the disclosure, one working scenario may correspond to one or more upper limit values, and when one working scenario corresponds to one upper limit value, the upper limit values corresponding to different working scenarios may be different, for example, the upper limit value corresponding to the LV charging scenario may be higher than the upper limit value corresponding to the HV charging scenario.
When one working scene corresponds to a plurality of upper limit values, the upper limit values of the same level between different working scenes may be different, for example, the first upper limit values corresponding to the LV charging scene and the HV charging scene may be different, and exemplary, the first upper limit value corresponding to the LV charging scene may be higher than the first upper limit value corresponding to the HV charging scene, so that the monitoring of the temperature change of the high-voltage charging scene may be more sensitive, and timely response control is facilitated.
In one embodiment, the current working scenario may correspond to a first upper limit value and a second upper limit value, and the first upper limit value may be less than the second upper limit value.
For example, when the current operation scenario is an LV charge scenario, the first upper limit value corresponding to the temperature rising rate may be 10 ℃/10s, and the second upper limit value may be 15 ℃/10s. When the current working scene is an HV charging scene, the first upper limit value corresponding to the temperature rising rate may be 8 ℃/10s, and the second upper limit value may be 12 ℃/10s.
In one embodiment, when the temperature rise rate reaches a first upper limit, e.g., exceeds the first upper limit and does not exceed the second upper limit, the temperature rise rate may be considered to reach a "up to standard" level, at which time the saturated charging voltage and/or charging power may be reduced based on a smaller first parameter adjustment amount, etc.
When the temperature rise rate exceeds the second upper limit value, the temperature rise rate may be considered to reach a "serious exceeding" level, at which time the saturated charging voltage and/or the charging power may be reduced based on the larger second parameter adjustment amount.
In one embodiment, reducing the saturated charging voltage and/or the charging power of the battery according to the first parameter adjustment amount indicated by the parameter adjustment policy corresponding to the first upper limit value may include: and reducing the saturated charging voltage and/or the charging power of the battery according to the first parameter adjustment quantity and the first parameter adjustment rate indicated by the parameter adjustment strategy corresponding to the first upper limit value.
In one embodiment, reducing the saturated charging voltage and/or the charging power of the battery according to the second parameter adjustment amount indicated by the parameter adjustment policy corresponding to the second upper limit value may include: and reducing the saturated charging voltage and/or the charging power of the battery according to the second parameter adjustment quantity and the second parameter adjustment rate indicated by the parameter adjustment strategy corresponding to the second upper limit value.
Wherein the first parameter adjustment rate may be lower than the second parameter adjustment rate. For example, the first parameter adjustment rate indicates that the magnitude of the saturated charging voltage and/or charging power decrease is less than the second parameter adjustment rate within the same period of time, or the first parameter adjustment rate indicates that the period of time required to decrease the saturated charging voltage and/or charging power by the same magnitude is greater than the second parameter adjustment rate.
Illustratively, the first parameter adjustment rate may indicate a 10% reduction in saturated charging voltage and/or charging power within 10 seconds, and the second parameter adjustment rate may indicate a 20% reduction in saturated charging voltage and/or charging power within 10 seconds.
Illustratively, the first parameter adjustment rate indicates a reduction in saturated charging voltage and/or charging power of 10% within 10 s. The second parameter adjustment rate may indicate that the saturated charging voltage and/or the charging power is reduced by 10% or 20% within 5s, etc.
In some embodiments, the first parameter adjustment is less than the second parameter adjustment, e.g., the first parameter adjustment indicates a reduction of 10% of the saturated charging voltage and/or charging power, the second parameter adjustment may indicate a reduction of 20% of the saturated charging voltage and/or charging power, etc.
It should be noted that, as those skilled in the art may understand, the methods provided in the embodiments of the present disclosure may be performed alone or together with some methods in the embodiments of the present disclosure or some methods in the related art.
For a better understanding of the embodiments of the present disclosure, the following further describes the technical solution of the present disclosure by means of an exemplary embodiment:
As shown in fig. 6, the present embodiment provides a method for detecting the rate of temperature rise and controlling the safety of temperature rise based on a battery temperature model, and a method for detecting and controlling the safety of temperature rise in a working area. In the charging application scenario, it may include a working state of charging, discharging, or standing.
First, the temperature increase rate threshold may be an upper limit value of the temperature increase rate. The charge temperature rise rate threshold may be determined based on voltage, battery usage capacity, current, SOH, or the like. The method is characterized in that the application model is characterized in that an LV charging scene and an HV charging scene respectively comprise 2 different temperature rising speed thresholds, wherein the charging voltage range corresponding to LV is 3V-4.1V, and the charging voltage range corresponding to HV is 4.1V-4.48V. The LV charging scene and the HV charging scene respectively correspond to a group of two set values of a first Rate threshold (Rate 1) and a second Rate threshold (Rate 2), wherein the Rate1 corresponding to the LV charging scene is 10 ℃/10s, and the Rate2 is 15 ℃/10s. Rate1 corresponding to HV charging scenario is 8deg.C/10 s, rate2 is 12deg.C/10 s.
Based on the flag detection of the temperature rise rate threshold, battery protection is further performed. For example, the Rate1 corresponding to LV with the primary temperature rising Rate exceeding, battery maintenance is started to reduce charging voltage and/or charging current, and battery charging safety is further ensured. The present embodiment includes but is not limited to battery discharge or rest state, temperature rise rate threshold corresponding to different voltages, different temperature rise interval determination threshold, and different flag detection times determination, which can be used to perform battery temperature rise monitoring and maintenance.
In this way, battery protection may be performed earlier before the battery exceeds a single battery temperature protection threshold, further ensuring battery safety and durability.
As shown in fig. 7, in this embodiment, there is provided a temperature control apparatus including:
an acquisition unit 10 for acquiring temperature data of the battery;
a determining unit 20, configured to determine a current operation scenario of the battery, and determine an upper limit value corresponding to the temperature data in the current operation scenario;
and an adjusting unit 30 for adjusting an operation parameter associated with the temperature data based on the upper limit value when the temperature data exceeds the upper limit value.
In one embodiment, the determining unit 20 is specifically configured to:
and determining the current working scene of the battery based on the working state type of the battery and the working parameters of the battery.
In one embodiment, the determining unit 20 is specifically configured to:
determining a type of operating state of the battery based on a charging current value of the battery; the working state types comprise: a charged state, a discharged state, or a stationary state;
and determining the current working scene of the battery based on the working state type and the working parameters of the battery.
In one embodiment, the determining unit 20 is specifically configured to:
when the working state type is a charging state, determining a charging voltage value of the battery;
and determining the current working scene of the battery based on the charging voltage value.
In one embodiment, the obtaining unit 10 is specifically configured to:
and acquiring temperature data of the battery within a preset time period.
In one embodiment, the obtaining unit 10 is specifically configured to:
acquiring the temperature rise of the battery within a preset time period;
and determining the temperature rising rate based on the temperature rising amount and the preset duration.
In one embodiment, the adjusting unit 30 is specifically configured to:
when the temperature rising rate exceeds the upper limit value, acquiring a parameter adjusting strategy corresponding to the upper limit value;
an operating parameter associated with the rate of temperature rise is adjusted based on the parameter adjustment strategy.
In one embodiment, the adjusting unit 30 is specifically configured to:
and reducing the saturated charging voltage and/or charging power of the battery based on the parameter adjustment amount indicated by the parameter adjustment strategy.
In one embodiment, the upper limit value includes: a first upper limit value and a second upper limit value; the first upper limit value is smaller than the second upper limit value;
The adjusting unit 30 is specifically configured to:
when the temperature rising rate exceeds the first upper limit value and does not exceed the second upper limit value, reducing the saturated charging voltage and/or charging power of the battery according to a first parameter adjustment amount indicated by a parameter adjustment strategy corresponding to the first upper limit value;
and when the temperature rising rate exceeds the second upper limit value, reducing the saturated charging voltage and/or charging power of the battery according to a second parameter adjustment amount indicated by a parameter adjustment strategy corresponding to the second upper limit value.
In one embodiment, the first parameter adjustment is less than the second parameter adjustment.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
The embodiment of the disclosure also provides a terminal, which comprises:
an antenna;
a memory;
and the processor is respectively connected with the antenna and the memory, and is used for controlling the antenna to transmit and receive wireless signals by executing an executable program stored in the memory and executing the steps of the battery temperature control method provided by any embodiment.
The terminal provided in this embodiment may be the aforementioned terminal or base station. The terminal may be various personal or vehicle-mounted terminals. The base station may be various types of base stations, such as a 4G base station or a 5G base station, etc.
The antenna may be various types of antennas, such as a 3G antenna, a 4G antenna, or a 5G antenna; the antenna may further include: wiFi antennas or wireless charging antennas, etc.
The memory may include various types of storage media, which are non-transitory computer storage media capable of continuing to memorize information stored thereon after a power down of the communication device.
The processor may be coupled to the antenna and the memory via a bus or the like for reading an executable program stored on the memory, for example, at least one of the methods shown in any of the embodiments of the present disclosure.
The embodiments of the present disclosure also provide a non-transitory computer-readable storage medium storing an executable program, where the executable program when executed by a processor implements the steps of the battery temperature control method provided in any of the foregoing embodiments, for example, at least one of the methods shown in any of the embodiments of the present disclosure.
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.
Fig. 8 is a block diagram illustrating a method for a terminal 600 according to an example embodiment. For example, the terminal 600 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, or the like.
Referring to fig. 8, the terminal 600 may include one or more of the following components: a processing component 602, a memory 604, a power component 606, a multimedia component 608, an audio component 610, an input/output (I/O) interface 612, a sensor component 614, and a communication component 616.
The processing component 602 generally controls overall operation of the terminal 600, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 602 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 602 can include one or more modules that facilitate interaction between the processing component 602 and other components. For example, the processing component 602 may include a multimedia module to facilitate interaction between the multimedia component 608 and the processing component 602.
The memory 604 is configured to store various types of data to support operations at the device 600. Examples of such data include instructions for any application or method operating on terminal 600, contact data, phonebook data, messages, pictures, videos, and the like. The memory 604 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
The power supply assembly 606 provides power to the various components of the terminal 600. The power supply components 606 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the terminal 600.
The multimedia component 608 includes a screen between the terminal 600 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 608 includes a front camera and/or a rear camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 600 is in an operational mode, such as a shooting 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 610 is configured to output and/or input audio signals. For example, the audio component 610 includes a Microphone (MIC) configured to receive external audio signals when the terminal 600 is in an operation 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 604 or transmitted via the communication component 616. In some embodiments, audio component 610 further includes a speaker for outputting audio signals.
The I/O interface 612 provides an interface between the processing component 602 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 614 includes one or more sensors for providing status assessment of various aspects of the terminal 600. For example, the sensor assembly 614 may detect the on/off state of the device 600, the relative positioning of the components, such as the display and keypad of the terminal 600, the sensor assembly 614 may also detect a change in position of the terminal 600 or a component of the terminal 600, the presence or absence of user contact with the terminal 600, the orientation or acceleration/deceleration of the terminal 600, and a change in temperature of the terminal 600. The sensor assembly 614 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 614 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 614 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 616 is configured to facilitate communication between the terminal 600 and other devices, either wired or wireless. The terminal 600 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 616 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 616 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 terminal 600 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 604, including instructions executable by processor 820 of terminal 600 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.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
In some cases, any two technical features can be combined into a new method technical scheme under the condition of no conflict.
In some cases, any two technical features mentioned above can be combined into a new device technical scheme without collision.
It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (13)
1. A battery temperature control method, characterized in that the method comprises:
acquiring temperature data of a battery;
Determining a current working scene of the battery, and determining an upper limit value corresponding to the temperature data in the current working scene;
and when the temperature data exceeds the upper limit value, adjusting the working parameter associated with the temperature data based on the upper limit value.
2. The method of claim 1, wherein the determining the current operating scenario of the battery comprises:
and determining the current working scene of the battery based on the working state type of the battery and the working parameters of the battery.
3. The method of claim 2, wherein the determining the current operating scenario of the battery based on the operating state type of the battery and the operating parameters of the battery comprises:
determining a type of operating state of the battery based on a charging current value of the battery; the working state types comprise: a charged state, a discharged state, or a stationary state;
and determining the current working scene of the battery based on the working state type and the working parameters of the battery.
4. The method of claim 3, wherein the determining the current operating scenario of the battery based on the operating state type and the operating parameters of the battery comprises:
When the working state type is a charging state, determining a charging voltage value of the battery;
and determining the current working scene of the battery based on the charging voltage value.
5. The method of claim 1, wherein the acquiring temperature data of the battery comprises:
and acquiring temperature data of the battery within a preset time period.
6. The method of claim 5, wherein the obtaining temperature data of the battery for a predetermined period of time comprises:
acquiring the temperature rise of the battery within a preset time period;
and determining the temperature rising rate based on the temperature rising amount and the preset duration.
7. The method of claim 6, wherein said adjusting the operating parameter associated with the temperature data based on the upper limit value when the temperature data exceeds the upper limit value comprises:
when the temperature rising rate exceeds the upper limit value, acquiring a parameter adjusting strategy corresponding to the upper limit value;
an operating parameter associated with the rate of temperature rise is adjusted based on the parameter adjustment strategy.
8. The method of claim 7, wherein the adjusting the operating parameter associated with the rate of temperature rise based on the parameter adjustment strategy comprises:
And reducing the saturated charging voltage and/or charging power of the battery based on the parameter adjustment amount indicated by the parameter adjustment strategy.
9. The method of claim 8, wherein the upper limit comprises: a first upper limit value and a second upper limit value; the first upper limit value is smaller than the second upper limit value;
the reducing the saturated charging voltage and/or charging power of the battery based on the parameter adjustment amount indicated by the parameter adjustment strategy comprises the following steps:
when the temperature rising rate exceeds the first upper limit value and does not exceed the second upper limit value, reducing the saturated charging voltage and/or charging power of the battery according to a first parameter adjustment amount indicated by a parameter adjustment strategy corresponding to the first upper limit value;
and when the temperature rising rate exceeds the second upper limit value, reducing the saturated charging voltage and/or charging power of the battery according to a second parameter adjustment amount indicated by a parameter adjustment strategy corresponding to the second upper limit value.
10. The method of claim 9, wherein the first parameter adjustment is less than the second parameter adjustment.
11. A battery temperature control device, the device comprising:
An acquisition unit configured to acquire temperature data of a battery;
the determining unit is used for determining the current working scene of the battery and determining the upper limit value corresponding to the temperature data in the current working scene;
and the adjusting unit is used for adjusting the working parameters related to the temperature data based on the upper limit value when the temperature data exceeds the upper limit value.
12. A terminal, the terminal comprising: a processor and a memory for storing a computer service capable of running on the processor, wherein the processor is configured to implement the method of any one of claims 1 to 10 when the computer service is run.
13. A storage medium having computer-executable instructions embodied therein, the computer-executable instructions being executable by a processor to implement the method of any one of claims 1 to 10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210774930.7A CN117375131A (en) | 2022-07-01 | 2022-07-01 | Battery temperature control method, device, terminal and storage medium |
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| CN202210774930.7A CN117375131A (en) | 2022-07-01 | 2022-07-01 | Battery temperature control method, device, terminal and storage medium |
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| CN117375131A true CN117375131A (en) | 2024-01-09 |
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| CN202210774930.7A Pending CN117375131A (en) | 2022-07-01 | 2022-07-01 | Battery temperature control method, device, terminal and storage medium |
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