CN112331961A - Temperature control method, device and equipment of battery cell and storage medium - Google Patents
Temperature control method, device and equipment of battery cell and storage medium Download PDFInfo
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- CN112331961A CN112331961A CN202011192231.9A CN202011192231A CN112331961A CN 112331961 A CN112331961 A CN 112331961A CN 202011192231 A CN202011192231 A CN 202011192231A CN 112331961 A CN112331961 A CN 112331961A
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
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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
- H01M10/4285—Testing apparatus
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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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
Abstract
The invention discloses a method, a device and equipment for controlling the temperature of a battery cell and a storage medium. The method comprises the following steps: detecting the current temperature and current working condition information of the battery core; determining the current optimal working temperature range according to the current working condition information of the battery cell; determining the current lowest power consumption of a temperature control system of the battery cell according to the current temperature of the battery cell and the current optimal working temperature range; and controlling a temperature control system of the battery cell to heat or cool the battery cell with the current lowest power consumption, and controlling the actual temperature of the battery cell within the current optimal working temperature range. According to the technical scheme provided by the embodiment of the invention, the decay rate of the service life of the battery cell temperature control system is reduced.
Description
Technical Field
The embodiment of the invention relates to the technical field of battery cells, in particular to a method, a device, equipment and a storage medium for controlling the temperature of a battery cell.
Background
When the battery cell is in the optimal working temperature range, the loss of the service life of the battery cell is small.
Therefore, when the current temperature of the battery cell is not within the optimum operating temperature range, it is necessary to control the actual temperature of the battery cell within the current optimum operating temperature range.
In the prior art, when cooling and heating the electric core, most of the electric core is directly processed by the maximum power of the temperature control system, if the temperature control system runs by the maximum power for a long time, the power consumption of the temperature control system is large, and the attenuation of the service life of the electric core temperature control system is aggravated.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method, an apparatus, a device, and a storage medium for controlling a temperature of a battery cell, so as to reduce a decay rate of a lifetime of a battery cell temperature control system.
The embodiment of the invention provides a method for controlling the temperature of a battery cell, which comprises the following steps:
detecting the current temperature and current working condition information of the battery core;
determining the current optimal working temperature range according to the current working condition information of the battery cell;
determining the current lowest power consumption of a temperature control system of the battery cell according to the current temperature of the battery cell and the current optimal working temperature range;
and controlling a temperature control system of the battery cell to heat or cool the battery cell with the current lowest power consumption, and controlling the actual temperature of the battery cell within the current optimal working temperature range.
An embodiment of the present invention further provides a device for controlling a temperature of a battery cell, including:
the detection module is used for detecting the current temperature and the current working condition information of the battery cell;
the optimal working temperature range determining module is used for determining the current optimal working temperature range according to the current working condition information of the battery cell;
the current lowest power consumption determining module is used for determining the current lowest power consumption of the temperature control system of the battery cell according to the current temperature of the battery cell and the current optimal working temperature range;
and the control module is used for controlling the temperature control system of the battery cell to heat or cool the battery cell with the current lowest power consumption, and controlling the actual temperature of the battery cell within the current optimal working temperature range. An embodiment of the present invention further provides an electronic device for controlling a temperature of a battery cell, including:
one or more processors;
storage means for storing one or more programs;
when the one or more programs are executed by the one or more processors,
and enabling the one or more processors to implement the temperature control method of the battery cell according to any of the above technical solutions.
An embodiment of the present invention further provides a storage medium, where a computer program is stored on the storage medium, where the storage medium stores one or more programs, and the one or more programs are executable by one or more processors to implement the method for controlling a temperature of an electrical core according to any of the foregoing technical solutions.
The technical scheme that this embodiment provided, control temperature control system heats or cools off with current minimum consumption to electric core, with the actual temperature control of electric core within current best operating temperature scope, wherein temperature control system heats or cools off with current minimum consumption to electric core, and heat or cool off with the electric core with the highest consumption, on the basis that has reduced electric core temperature control system's consumption, avoid temperature control system to use maximum power operation for a long time, temperature control system's consumption is great, aggravate the decay in electric core temperature control system's life-span, and then reduced the decay rate in electric core temperature control system life-span. Compared with the prior art, the temperature of the battery cell is controlled only after the current temperature of the battery cell exceeds the optimal working temperature range, and the operation of the temperature control system of the battery cell is controlled according to the maximum power consumption corresponding to the maximum power. In this embodiment, the current minimum power consumption of the temperature control system of the battery cell is determined according to the current temperature of the battery cell and the current optimal operating temperature range, and particularly, the current temperature of the battery cell is within the optimal operating temperature range.
Drawings
Fig. 1 is a method for controlling a temperature of a battery cell according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of step 130 in FIG. 1;
FIG. 3 is a schematic flow chart of step 1302 in FIG. 2;
fig. 4 is a block diagram of a structure of a temperature control apparatus for a battery cell according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a temperature control electronic device of a battery cell according to an embodiment of the present application.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As described in the foregoing background, in the conventional method for controlling the temperature of a battery cell, when the battery cell is cooled and heated, most of the battery cells are directly processed by using the maximum power of the temperature control system, which may aggravate the degradation of the lifetime of the temperature control system of the battery cell.
In view of the above technical problems, an embodiment of the present invention provides the following technical solutions:
fig. 1 is a schematic flow chart of a method for controlling a temperature of a battery cell according to an embodiment of the present invention. Fig. 2 is a schematic flow chart of step 130 in fig. 1. Referring to fig. 1, the method comprises the steps of:
and 110, detecting the current temperature and the current working condition information of the battery core.
Optionally, the current working condition information includes at least one of a charge-discharge rate of the battery cell, an internal resistance of the battery cell, and a state of charge. Specifically, the current temperature and the current working condition information of the battery core can be detected through the battery management system.
And step 120, determining the current optimal working temperature range according to the current working condition information of the battery core.
The battery cell corresponds to different optimal working temperature ranges under different working condition information. For example, when the battery cell is charged and discharged at a large charge and discharge rate, the value corresponding to the optimal operating temperature range is larger than the value corresponding to the optimal operating temperature range when the battery cell is charged and discharged at a small charge and discharge rate. Therefore, the current optimal working temperature range needs to be determined according to the current working condition information of the battery core. Specifically, through a large amount of experimental data, the working condition information of the battery cell at different temperatures is acquired, the corresponding temperatures of the battery cell in different charging and discharging multiplying powers, the internal resistance of the battery cell and the state of charge are sorted and recorded, the temperatures are recorded as different optimal working temperature ranges corresponding to the battery cell under different working condition information, and a mapping relation between the battery cell and the optimal working temperature ranges under different working condition information is made, so that the mapping relation table corresponding to the working condition information and the optimal temperature ranges of the battery cell can be inquired, and the current optimal working temperature range is determined together with the current working condition information of the battery cell. When the battery core works within the current optimal working temperature range determined by the current working condition information, the performance of the battery is relatively stable, and the service life is relatively slow to decay.
And step 130, determining the current lowest power consumption of the temperature control system of the battery cell according to the current temperature of the battery cell and the current optimal working temperature range.
Optionally, referring to fig. 2, the step 130 of determining the current minimum power consumption of the temperature control system of the battery cell according to the current temperature of the battery cell and the current optimal operating temperature range includes:
In the present embodiment, the optimum operating temperature range is, for example, greater than or equal to 0 ℃ and less than or equal to 40 ℃. And when the current temperature of the battery cell is less than 0 ℃ or more than 40 ℃, determining the first power consumption as the current lowest power consumption of the temperature control system of the battery cell. For example, the first power consumption may select a maximum power consumption of the temperature control system of the battery cell to achieve that the actual temperature of the battery cell is within the optimal operating temperature range in a shortest time. The maximum power consumption of the temperature control system of the battery cell is the corresponding power consumption when the temperature control system of the battery cell operates at the maximum power. It should be noted that the current minimum power consumption of the temperature control system of the battery cell is a power consumption value that enables the actual temperature of the battery cell to be within the optimal operating temperature range in the shortest time.
It should be noted that, in this embodiment, step 1301 and step 1302 are not in sequence.
When the current temperature of the battery cell is greater than or equal to 0 ℃ and less than or equal to 40 ℃, along with the prolonging of the service time of the battery cell, the temperature of the battery cell can be higher and higher due to the heat generated by the battery cell, if the temperature control system of the battery cell is not controlled to cool the battery cell, after a preset time period, the temperature of the battery cell can be higher and higher by more than 40 ℃, namely, the optimal working temperature range is exceeded, and along with the prolonging of the service time of the battery cell, the reduction speed of the service life of the battery cell is increased. Therefore, when the current temperature of the battery cell is greater than or equal to 0 ℃ and less than or equal to 40 ℃, the temperature control system of the battery cell needs to be controlled to cool the battery cell, wherein the second power consumption less than or equal to the first power consumption can be selected as the current lowest power consumption of the temperature control system of the battery cell to cool the battery cell, on one hand, the actual temperature of the battery cell cannot be greater than the maximum temperature boundary value along with the extension of the service time of the battery cell, on the other hand, the temperature control system of the battery cell is controlled to cool the battery cell with lower power consumption, and the service life attenuation speed of the temperature control system of the battery. It should be noted that, when the current temperature of the battery cell is greater than or equal to 0 ℃ and less than or equal to 40 ℃, the temperature control system of the battery cell does not need to be started immediately to operate. The method includes the steps that within preset working time of a temperature control system of the battery cell, it is guaranteed that the current temperature of the battery cell does not exceed a range which is larger than or equal to 0 ℃ and smaller than or equal to 40 ℃, therefore, the second power consumption is a changed value, when the temperature control system of the battery cell is not started to operate, the value of the second power consumption is 0, and when the temperature control system of the battery cell is started to operate, the value of the second power consumption is smaller than or equal to the value of the first power consumption.
It should be noted that, when the current temperature of the battery cell is within the optimal operating temperature range, the second power is determined as the current lowest power consumption of the temperature control system of the battery cell according to the difference between the maximum temperature boundary value and the current temperature, the second power is not a determined value, and when the difference between the maximum temperature boundary value and the current temperature is larger, the value of the second power consumption is smaller.
Specifically, the temperature of the battery cell may be increased by increasing the temperature of the heating unit and the temperature of the battery cell may be decreased by decreasing the temperature of the cooling unit according to the temperature control system of the battery cell. The temperature control system of the battery cell controls the heating unit or the cooling unit to control the temperature of the battery cell to be different in time of reaching the preset temperature under different power consumptions, so that along with the prolonging of the service time of the battery cell, the temperature of the battery cell is controlled within the optimal working temperature range through the temperature control system of the battery cell within the time when the actual temperature of the battery cell reaches the maximum temperature boundary value.
Specifically, in the process that the difference between the maximum temperature boundary value and the current temperature is changed from 0 ℃ to the difference between the maximum temperature boundary value and the minimum temperature boundary value, the use of the battery cell causes the time for the temperature of the battery cell to rise from the current temperature to the maximum temperature boundary value to be longer and longer, so that the temperature control system of the battery cell can be controlled to cool the battery cell with smaller power consumption, so as to avoid the actual temperature of the battery cell from rising to the maximum temperature boundary value. Accordingly, the difference between the second power and the first power consumption is larger and larger. It should be noted that the power consumption of the temperature control system of the battery cell corresponds to the working power, and the larger the working power is, the larger the power consumption is, the smaller the working power is, and the smaller the power consumption is.
Compared with the prior art, the temperature of the battery cell is controlled only after the current temperature of the battery cell exceeds the optimal working temperature range, and the operation of the temperature control system of the battery cell is controlled according to the maximum power consumption corresponding to the maximum power. In this embodiment, a current minimum power consumption of the temperature control system of the battery cell is determined according to a current temperature of the battery cell and a current optimal operating temperature range, and particularly, the current temperature of the battery cell is within the optimal operating temperature range, and a second power is determined as the current minimum power consumption of the temperature control system of the battery cell according to a difference between a maximum temperature boundary value and the current temperature, where the second power consumption is less than or equal to the first power consumption, so that on one hand, it is ensured that an actual temperature of the battery cell is not greater than the maximum temperature boundary value along with an extension of a service time of the battery cell, and on the other hand, the temperature control system of the battery cell is controlled to cool the battery cell with a lower power consumption.
And step 140, controlling a temperature control system of the battery cell to heat or cool the battery cell with the current lowest power consumption, and controlling the actual temperature of the battery cell within the current optimal working temperature range.
Specifically, the current temperature of the battery cell is smaller than the minimum temperature boundary value of the optimal working temperature range, the temperature control system of the battery cell is controlled to heat the battery cell with the current lowest power consumption, and the actual temperature of the battery cell is controlled within the current optimal working temperature range. And controlling a temperature control system of the battery cell to cool the battery cell at the current lowest power consumption, and controlling the actual temperature of the battery cell within the current optimal working temperature range. The current temperature of the battery cell is within the optimal working temperature range, and the temperature control system of the battery cell is controlled to cool the battery cell with the current lowest power consumption, so that the actual temperature of the battery cell is prevented from rising to a maximum temperature boundary value, and even exceeds the maximum temperature boundary value.
The technical scheme that this embodiment provided, control temperature control system heats or cools off with current minimum consumption to electric core, with the actual temperature control of electric core within current best operating temperature scope, wherein temperature control system heats or cools off with current minimum consumption to electric core, and heat or cool off with the electric core with the highest consumption, on the basis that has reduced electric core temperature control system's consumption, avoid temperature control system to use maximum power operation for a long time, temperature control system's consumption is great, aggravate the decay in electric core temperature control system's life-span, and then reduced the decay rate in electric core temperature control system life-span. Compared with the prior art, the temperature of the battery cell is controlled only after the current temperature of the battery cell exceeds the optimal working temperature range, and the operation of the temperature control system of the battery cell is controlled according to the maximum power consumption corresponding to the maximum power. In this embodiment, the current minimum power consumption of the temperature control system of the battery cell is determined according to the current temperature of the battery cell and the current optimal operating temperature range, and particularly, the current temperature of the battery cell is within the optimal operating temperature range, and the current minimum power consumption operation is determined according to a difference between the maximum temperature boundary value and the current temperature.
Optionally, on the basis of the foregoing technical solution, the step 140 of controlling the temperature control system to heat or cool the battery cell with the current lowest power consumption further includes:
and monitoring the actual temperature of the battery cell, and controlling the temperature control system to heat or cool the battery cell with second power consumption when the actual temperature of the battery cell changes from a minimum temperature boundary value smaller than the optimal working temperature range or a maximum temperature boundary value larger than the optimal working temperature range to the current optimal working temperature range.
Specifically, when the battery cell is used, the temperature of the battery cell is increased by heat generated by the battery cell, the actual temperature of the battery cell can be changed by heating or cooling the battery cell by the temperature control system, and the actual temperature of the battery cell is in a dynamic change process. Therefore, in the above technical solution process, the actual temperature of the battery cell needs to be monitored, and when the actual temperature of the battery cell changes from the minimum temperature boundary value smaller than the optimal operating temperature range or the maximum temperature boundary value larger than the optimal operating temperature range to the current optimal operating temperature range, the temperature control system may be controlled to heat or cool the battery cell with the second power consumption, so as to prevent the temperature control system of the battery cell from always running with the first power consumption (maximum power consumption) larger than or equal to the second power consumption, so as to reduce the power consumption of the temperature control system of the battery cell, and achieve the effect of reducing the decay rate of the lifetime of the temperature control system of the battery cell.
FIG. 3 is a flowchart illustrating step 1302 of FIG. 2. Optionally, on the basis of the foregoing technical solution, referring to fig. 3, in step 1302, determining that the current temperature of the battery cell is within the optimal operating temperature range, and determining that the second power is the current lowest power consumption of the temperature control system of the battery cell according to a difference between the maximum temperature boundary value and the current temperature includes:
Specifically, the time for increasing the temperature of the battery cell from the current temperature to the maximum temperature boundary value by the heat generated in the battery cell itself is the longest temperature control time.
Step 13022, determining that the second power consumption is the current lowest power consumption of the temperature control system according to the longest temperature control time and the mapping relationship between the temperature control time and the power consumption of the temperature control system.
Specifically, the second power consumption corresponding to the longest temperature control time is selected according to the mapping relation between the temperature control time and the power consumption of the temperature control system, and the second power consumption is determined to be the current lowest power consumption of the temperature control system, so that the temperature control system is controlled to cool the battery cell with the second power consumption within the longest temperature control time, and the actual temperature of the battery cell is not greater than the maximum temperature boundary value.
Optionally, on the basis of the foregoing technical solution, determining, in step 130, the current minimum power consumption of the temperature control system of the battery cell according to the current temperature of the battery cell and the current optimal operating temperature range includes:
determining the current lowest power consumption of a current equalizing unit and a heating unit in the temperature control system according to the current temperature of the battery core and the current optimal working temperature range; or determining the current lowest power consumption of the current equalizing unit and the cooling unit in the temperature control system according to the current temperature of the battery core and the current optimal working temperature range.
Specifically, the temperature control system of the battery core comprises a cooling unit, wherein the cooling unit comprises cooling liquid to cool the battery core, and the cooling unit can control the temperature of the cooling liquid. The flow equalizing unit can control the flow speed of the cooling liquid in the cooling unit, and under the control of the flow equalizing unit, the faster the flow speed of the cooling liquid in the cooling unit is, the faster the heating speed of the battery core is. Specifically, the temperature control system of the battery cell comprises a heating unit, wherein the heating unit comprises a heating liquid which can heat the battery cell, and the heating unit can control the temperature of the heating liquid. The flow equalizing unit can control the flow speed of the heating liquid in the heating unit, and under the control of the flow equalizing unit, the faster the flow speed of the heating liquid in the heating unit is, the faster the heating speed of the battery core is. According to the technical scheme of the embodiment, the current lowest power consumption of a current equalizing unit and a heating unit in a temperature control system is determined according to the current temperature and the current optimal working temperature range of a battery cell, or the current lowest power consumption of the current equalizing unit and a cooling unit in the temperature control system is determined, the actual temperature of the battery cell is controlled within the current optimal working temperature range, wherein the temperature control system heats or cools the battery cell with the current lowest power consumption and does not heat or cool the battery cell with the highest power consumption, and the decay rate of the service life of the battery cell temperature control system is reduced on the basis of reducing the power consumption of the battery cell temperature control system.
The embodiment of the invention also provides a temperature control device of the battery cell. Fig. 4 is a block diagram of a structure of a temperature control device of a battery cell according to an embodiment of the present invention. The apparatus may be implemented in software and/or hardware, and may be configured in an electronic device with a network communication function. Referring to fig. 4, a temperature control apparatus for a battery cell provided in an embodiment of the present application includes:
the detection module 100 is configured to detect current temperature and current working condition information of the battery cell;
an optimal working temperature range determining module 200, configured to determine a current optimal working temperature range according to the current working condition information of the battery cell;
a current minimum power consumption determining module 300, configured to determine a current minimum power consumption of a temperature control system of the battery cell according to the current temperature of the battery cell and a current optimal operating temperature range;
the control module 400 is configured to control a temperature control system of the battery cell to heat or cool the battery cell with the current lowest power consumption, and control the actual temperature of the battery cell within the current optimal operating temperature range.
Optionally, the current minimum power consumption determining module 300 is specifically configured to determine that the first power consumption is the current minimum power consumption of the temperature control system of the battery cell, where the first power consumption is the maximum power consumption of the temperature control system of the battery cell, where the current temperature of the battery cell is smaller than a minimum temperature boundary value of the optimal operating temperature range, or the current temperature of the battery cell is greater than a maximum temperature boundary value of the optimal operating temperature range;
and determining a second power as the current lowest power consumption of the temperature control system of the battery cell according to the difference between the maximum temperature boundary value and the current temperature, wherein the second power consumption is less than or equal to the first power consumption.
Optionally, the larger the difference between the maximum temperature boundary value and the current temperature is, the smaller the value of the second power consumption is.
Optionally, the control module 400 is further configured to monitor an actual temperature of the battery cell, and when the actual temperature of the battery cell changes from a minimum temperature boundary value smaller than the optimal operating temperature range or a maximum temperature boundary value larger than the optimal operating temperature range to be within the current optimal operating temperature range, control the temperature control system to heat or cool the battery cell with a second power consumption.
Optionally, the current minimum power consumption determining module 300 is specifically configured to determine the longest temperature control time according to a difference between the current temperature of the battery cell and the maximum temperature boundary value;
and determining the second power consumption as the current lowest power consumption of the temperature control system according to the longest temperature control time and the mapping relation between the temperature control time and the power consumption of the temperature control system.
Optionally, the current minimum power consumption determining module 300 is further configured to determine current minimum power consumption of a current equalizing unit and a heating unit in the temperature control system according to the current temperature of the battery cell and the current optimal operating temperature range;
or determining the current lowest power consumption of a current equalizing unit and a cooling unit in the temperature control system according to the current temperature of the battery core and the current optimal working temperature range.
Optionally, the current working condition information includes at least one of a charge-discharge rate of the battery cell, an internal resistance of the battery cell, and a state of charge.
The temperature control device for a battery cell provided in the embodiment of the present application may execute the method for controlling the temperature of the battery cell provided in any embodiment of the present application, and has a function and an advantageous effect corresponding to the method for controlling the temperature of the battery cell.
Fig. 5 is a schematic structural diagram of a temperature control electronic device of a battery cell according to an embodiment of the present application. As illustrated in fig. 5, an electronic device provided in an embodiment of the present application includes: one or more processors 510 and storage 520; the processor 510 in the electronic device may be one or more, and fig. 5 illustrates one processor 510 as an example; storage 520 is used to store one or more programs; the one or more programs are executed by the one or more processors 510, so that the one or more processors 510 implement the method for controlling the temperature of the battery cell according to any one of the embodiments of the present application.
The electronic device may further include: an input device 530 and an output device 540.
The processor 510, the storage device 520, the input device 530 and the output device 540 in the electronic apparatus may be connected by a bus or other means, and fig. 5 illustrates an example of connection by a bus.
The storage device 520 in the electronic apparatus is used as a computer-readable storage medium to store one or more programs, which may be software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the method for controlling the temperature of the battery cell provided in the embodiment of the present application. The processor 510 executes various functional applications and data processing of the electronic device by running the software programs, instructions and modules stored in the storage device 520, that is, the method for controlling the temperature of the battery cell in the above method embodiment is implemented.
The storage device 520 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the electronic device, and the like. Further, the storage 520 may include high speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the storage 520 may further include memory located remotely from the processor 510, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 530 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the electronic apparatus. The output device 540 may include a display device such as a display screen.
And, when the one or more programs included in the electronic device are executed by the one or more processors 510, the programs perform the following operations:
detecting the current temperature and current working condition information of the battery core;
determining the current optimal working temperature range according to the current working condition information of the battery cell;
determining the current lowest power consumption of a temperature control system of the battery cell according to the current temperature of the battery cell and the current optimal working temperature range;
and controlling a temperature control system of the battery cell to heat or cool the battery cell with the current lowest power consumption, and controlling the actual temperature of the battery cell within the current optimal working temperature range.
Of course, it can be understood by those skilled in the art that when the one or more programs included in the electronic device are executed by the one or more processors 510, the programs may also perform related operations in the method for controlling the temperature of the battery cell provided in any embodiment of the present application.
An embodiment of the present application provides a computer-readable storage medium having stored thereon a computer program for executing a method of temperature control of a battery cell, the method comprising:
detecting the current temperature and current working condition information of the battery core;
determining the current optimal working temperature range according to the current working condition information of the battery cell;
determining the current lowest power consumption of a temperature control system of the battery cell according to the current temperature of the battery cell and the current optimal working temperature range;
and controlling a temperature control system of the battery cell to heat or cool the battery cell with the current lowest power consumption, and controlling the actual temperature of the battery cell within the current optimal working temperature range.
Optionally, the program may be further configured to, when executed by the processor, execute the method for controlling the temperature of the battery cell provided in any embodiment of the present application.
The computer storage media of the embodiments of the present application may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having 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), a flash Memory, an optical fiber, a portable CD-ROM, an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. A computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take a variety of forms, including, but not limited to: an electromagnetic signal, an optical signal, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, Radio Frequency (RF), etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method for controlling the temperature of a battery cell is characterized by comprising the following steps:
detecting the current temperature and current working condition information of the battery core;
determining the current optimal working temperature range according to the current working condition information of the battery cell;
determining the current lowest power consumption of a temperature control system of the battery cell according to the current temperature of the battery cell and the current optimal working temperature range;
and controlling a temperature control system of the battery cell to heat or cool the battery cell with the current lowest power consumption, and controlling the actual temperature of the battery cell within the current optimal working temperature range.
2. The method of controlling temperature of a battery cell of claim 1,
determining the current lowest power consumption of the temperature control system of the battery cell according to the current temperature of the battery cell and the current optimal working temperature range comprises:
determining that first power consumption is the current lowest power consumption of a temperature control system of the battery cell, wherein the first power consumption is the maximum power consumption of the temperature control system of the battery cell, and the current temperature of the battery cell is smaller than the minimum temperature boundary value of the optimal working temperature range or the current temperature of the battery cell is larger than the maximum temperature boundary value of the optimal working temperature range;
and determining a second power as the current lowest power consumption of the temperature control system of the battery cell according to the difference between the maximum temperature boundary value and the current temperature, wherein the second power consumption is less than or equal to the first power consumption.
3. The method of claim 2, wherein the larger the difference between the maximum temperature boundary value and the current temperature, the smaller the value of the second power consumption.
4. The method of claim 2, wherein the step of controlling the temperature control system to heat or cool the battery cell at the current lowest power consumption further comprises:
and monitoring the actual temperature of the battery cell, and controlling the temperature control system to heat or cool the battery cell with second power consumption when the actual temperature of the battery cell changes from a minimum temperature boundary value smaller than the optimal working temperature range or a maximum temperature boundary value larger than the optimal working temperature range to the current optimal working temperature range.
5. The method of claim 2, wherein the current temperature of the cell is within the optimal operating temperature range, and wherein determining the second power as the current minimum power consumption of the temperature control system of the cell according to the difference between the maximum temperature boundary value and the current temperature comprises:
determining the longest temperature control time according to the difference value between the current temperature of the battery cell and the maximum temperature boundary value;
and determining the second power consumption as the current lowest power consumption of the temperature control system according to the longest temperature control time and the mapping relation between the temperature control time and the power consumption of the temperature control system.
6. The method of claim 1, wherein determining the current minimum power consumption of the temperature control system of the cell according to the current temperature of the cell and the current optimal operating temperature range comprises:
determining the current lowest power consumption of a current equalizing unit and a heating unit in the temperature control system according to the current temperature of the battery core and the current optimal working temperature range;
or determining the current lowest power consumption of a current equalizing unit and a cooling unit in the temperature control system according to the current temperature of the battery core and the current optimal working temperature range.
7. The method of claim 1, wherein the current operating condition information includes at least one of a charge-discharge rate, an internal resistance, and a state of charge of the battery cell.
8. A temperature control device of a battery cell, comprising:
the detection module is used for detecting the current temperature and the current working condition information of the battery cell;
the optimal working temperature range determining module is used for determining the current optimal working temperature range according to the current working condition information of the battery cell;
the current lowest power consumption determining module is used for determining the current lowest power consumption of the temperature control system of the battery cell according to the current temperature of the battery cell and the current optimal working temperature range;
and the control module is used for controlling the temperature control system of the battery cell to heat or cool the battery cell with the current lowest power consumption, and controlling the actual temperature of the battery cell within the current optimal working temperature range.
9. An electronic device for controlling the temperature of a cell, comprising:
one or more processors;
storage means for storing one or more programs;
when the one or more programs are executed by the one or more processors, cause the one or more processors to implement the method for controlling the temperature of a cell of any of claims 1-7.
10. A storage medium having a computer program stored thereon, wherein the storage medium stores one or more programs executable by one or more processors to implement the method of temperature control of a battery cell of any of claims 1-7.
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