CN116613402A - Battery charging control method, system, device, equipment and storage medium - Google Patents

Battery charging control method, system, device, equipment and storage medium Download PDF

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Publication number
CN116613402A
CN116613402A CN202310871182.9A CN202310871182A CN116613402A CN 116613402 A CN116613402 A CN 116613402A CN 202310871182 A CN202310871182 A CN 202310871182A CN 116613402 A CN116613402 A CN 116613402A
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CN
China
Prior art keywords
temperature
battery
heat exchange
cooler
regulator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310871182.9A
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Chinese (zh)
Inventor
吴凯
李翔
李兴星
黄小腾
王鹏
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
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Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to CN202310871182.9A priority Critical patent/CN116613402A/en
Publication of CN116613402A publication Critical patent/CN116613402A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/443—Methods for charging or discharging in response to temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • 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
    • H01M10/446—Initial charging measures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application provides a battery charging control method, a system, a device, equipment and a storage medium, wherein the method comprises the following steps: acquiring a first temperature of the battery in a charging process; controlling an operating state of a temperature regulator of the battery according to the first temperature; the temperature regulator is used for regulating the object temperature of a heat exchange object, and the heat exchange object is used for carrying out heat exchange with the battery.

Description

Battery charging control method, system, device, equipment and storage medium
Technical Field
The present application relates to the field of battery technologies, and in particular, to a battery charging control method, system, device, equipment, and storage medium.
Background
With the growing shortage of world energy and environmental protection, batteries are becoming more popular as power energy sources. In particular, the industry of electric vehicles is rapidly developing, and as a power supply device for electric vehicles, safety and use cost problems of batteries are attracting attention.
In order to improve the charging performance of the battery during charging, it is generally necessary to maintain the battery at a set temperature interval. If the battery is charged in a low temperature environment, the charging performance of the battery is poor at the initial stage of the battery charging. The battery generates heat during the charging process, thereby increasing the temperature of the battery charging environment. However, when the temperature of the charging environment is high, the charging performance of the battery will also be affected.
The statements made above merely serve to provide background information related to the present disclosure and may not necessarily constitute prior art.
Disclosure of Invention
The embodiment of the application provides at least a battery charging control method, a system, a device, equipment and a storage medium, which can relieve the problem of reduced battery charging performance caused by higher charging environment problem in the battery charging process.
In a first aspect, an embodiment of the present application provides a battery charging control method, including:
acquiring a first temperature of the battery in a charging process;
controlling an operating state of a temperature regulator of the battery according to the first temperature; the temperature regulator is used for regulating the object temperature of a heat exchange object, and the heat exchange object is used for carrying out heat exchange with the battery.
In the embodiment of the application, a first temperature of a battery is obtained in a charging process; and further controls the operating state of the temperature regulator of the battery according to the first temperature. The temperature of the battery can be adjusted by controlling the running state of the temperature regulator, so that the heat exchange object exchanges heat with the battery at the object temperature, and the temperature of the battery can be adjusted by performing heat exchange operation on the heat exchange object and the battery, and the temperature of the battery can be controlled to be stabilized in a reasonable temperature interval, so that the charging performance of the battery is improved.
In some embodiments, the controlling the operating state of the temperature regulator of the battery according to the first temperature includes:
determining, based on the first temperature, whether a first opening condition is satisfied by a cooler of the thermostat;
controlling the cooler to be started under the condition that the cooler is determined to meet the first starting condition; wherein the cooler is configured to reduce an object temperature of the heat exchange object to reduce a first temperature of the battery.
The opening time of the cooler can be set more flexibly by controlling the opening mode of the cooler through the first temperature, so that the temperature of the battery can be regulated more flexibly. The temperature of the battery is gradually increased in the charging process, and the increased temperature can improve the charging and discharging capacity and the capacity retention rate of the battery. At this time, the cooler may be controlled to be turned on when the first temperature of the battery is close to the temperature threshold. By this processing method, the battery after the completion of charging can be brought into a high temperature region, and the charge/discharge capacity and capacity retention rate of the battery can be improved.
In some embodiments, the determining whether the thermostat cooler meets a first opening condition based on the first temperature includes:
Determining that the cooler meets the first opening condition under the condition that the first temperature is determined to be in a target temperature range; the target temperature range is determined based on a first temperature threshold value and a second temperature threshold value of the battery, the first temperature threshold value is used for indicating the upper temperature limit value of the battery in the charging process, the second temperature threshold value is used for indicating the upper temperature limit value of the battery in the using process, and the first temperature threshold value is lower than the second temperature threshold value.
In the above embodiment, when the first temperature is within the target temperature range, the method of controlling the opening of the cooler may improve the threshold condition of the refrigeration mode of the temperature regulator, so that the battery cell of the battery after the charging is in the high temperature region and approaches to the high temperature threshold, so as to improve the charging and discharging capability and the capacity retention rate of the battery cell.
In some embodiments, the method further comprises:
acquiring the temperature of the battery at each acquisition time of the first period to obtain a plurality of second temperatures; the first time period is a time period after the cooler is started;
determining whether the current temperature of the battery is higher than a second temperature threshold value in a case where it is determined that the temperature of the battery does not decrease after the cooler is turned on based on the plurality of second temperatures; wherein the second temperature threshold is used for indicating the upper temperature limit value of the battery in the use process;
And ending the charging operation of the battery in the case that the current temperature is higher than the second temperature threshold.
Through the processing mode, whether the temperature of the battery exceeds the second temperature threshold value or not can be monitored in real time under the condition that the temperature of the battery is controlled to be in a high temperature region, and the charging is controlled to be finished under the condition that the temperature of the battery exceeds the second temperature threshold value, so that the safety of the charging process is improved on the basis of improving the capacity retention rate of the battery core.
In some embodiments, the controlling the operating state of the temperature regulator of the battery according to the first temperature includes:
determining whether a heater of the thermostat meets a second opening condition if it is determined that the cooler does not meet the first opening condition;
and controlling the heater of the temperature regulator to be turned on in the case that the second turning-on condition is determined to be satisfied.
By turning on the heater, the object temperature of the heat exchange object can be increased to prevent the temperature of the battery from decreasing, thereby increasing the temperature of the battery and controlling the temperature of the battery to be located in a high temperature region.
In some embodiments, the determining whether the heater of the thermostat meets a second on condition includes:
Acquiring the temperature of the battery in a second period of time to obtain a plurality of third temperatures;
in the case where it is determined that the temperature of the battery falls based on the plurality of third temperatures, it is determined that the heater satisfies the second on condition.
Through the mode of controlling the heater to open under the condition that the temperature of the battery is determined to be reduced at a plurality of third temperatures, the heat exchange object can be heated, the electric energy of the charger is stored in the battery in a heat energy mode, and the temperature of the battery after the heat preservation working condition can be improved.
In some embodiments, the obtaining the temperature of the battery during the second period of time to obtain a plurality of third temperatures includes:
controlling the heat exchange object and the battery to perform a heat exchange operation in a case where it is determined that the cooler does not satisfy the first opening condition;
and determining the second period of time and determining each acquisition time of the second period of time to acquire the plurality of third temperatures in the process of performing heat exchange operation on the heat exchange object and the battery.
By controlling the heat exchange object and the battery to perform heat exchange operation, the temperature of the battery can be increased under the condition that a heater is not required to be started, so that the temperature of the battery is closer to a temperature threshold value, and the charging and discharging capacity and capacity retention rate of the battery core are improved.
In some embodiments, the controlling the operating state of the temperature regulator of the battery according to the first temperature includes:
determining the working state of a heater in the temperature regulator under the condition that the first temperature is higher than a second temperature threshold value; wherein the second temperature threshold is used for indicating an upper temperature limit value in the use process of the battery;
and controlling the heater to be turned off and ending the charging operation of the battery in the case that the heater is determined to be in the on state based on the operating state.
By the processing mode, under the condition that the first temperature exceeds the second temperature threshold value, the safety of the charging process can be improved on the basis of improving the capacity retention rate of the battery cell by controlling the end of charging.
In a second aspect, the present application provides a battery charge control device comprising:
an acquisition unit configured to acquire a first temperature of the battery during charging;
a control unit for controlling an operation state of a temperature regulator of the battery according to the first temperature; the temperature regulator is used for regulating the object temperature of a heat exchange object, and the heat exchange object is used for carrying out heat exchange with the battery.
In a third aspect, the present application provides a battery charge control system comprising: the device comprises a battery, a temperature collector, a temperature regulator and a controller;
the temperature collector is used for collecting a first temperature of a battery in the battery;
the controller is used for responding to a charging instruction of the battery and sending a control instruction to a temperature regulator of the battery according to the first temperature; the temperature regulator is used for regulating the object temperature of a heat exchange object, wherein the heat exchange object is used for carrying out heat exchange with the battery;
the temperature regulator is used for adjusting the running state of the temperature regulator based on the control instruction.
In a fourth aspect, the present application provides a powered device, including the battery charging control system described in the third aspect.
In a fifth aspect, the present application provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the method according to any one of the first and second aspects.
In a sixth aspect, the present application provides a computer readable storage medium having stored thereon a computer program for execution by a processor to implement the method of any one of the first and second aspects.
In a seventh aspect, the present application provides a computer program product comprising a computer program for execution by a processor to implement the method of any one of the first and second aspects.
The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are necessary for the embodiments to be used are briefly described below, the drawings being incorporated in and forming a part of the description, these drawings showing embodiments according to the present application and together with the description serve to illustrate the technical solutions of the present application. It is to be understood that the following drawings illustrate only certain embodiments of the application and are therefore not to be considered limiting of its scope, for the person of ordinary skill in the art may admit to other equally relevant drawings without inventive effort.
Fig. 1 is a flow diagram of a battery charge control method according to one or more embodiments.
Fig. 2 is another flow diagram of a battery charge control method provided in accordance with one or more embodiments.
Fig. 3 is a schematic diagram of a battery charge control system provided in accordance with one or more embodiments.
Fig. 4 is a schematic structural diagram of a battery charge control device provided according to one or more embodiments.
Fig. 5 is a block diagram of an electronic device in accordance with one or more embodiments.
FIG. 6 is a schematic diagram of a computer-readable storage medium in accordance with one or more embodiments.
Detailed Description
Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.
In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
In the description of the embodiments of the present application, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).
With the growing shortage of world energy and environmental protection, batteries are becoming more popular as power energy sources. For example, the demand of electric equipment such as electric vehicles, electronic products, household appliances, and the like for batteries is also gradually increasing. In particular, the industry of electric vehicles is rapidly developing, and as a power supply device for electric vehicles, safety and use cost problems of batteries are attracting attention.
When the battery is charged, a specified charging environment can be set for the battery, so that the charging safety is ensured. For example, for an electric vehicle, a charging pile may be provided in a specified parking area to charge the electric vehicle with the charging pile. At this time, the temperature of the charging environment of the electric equipment is associated with the setting environment of the charging pile. When the temperature of the setting environment of the charging pile is lower, the temperature of the charging environment of the electric equipment is also lower.
In this case, if the battery is charged in a low temperature environment, the overall average temperature of the battery pack during operation is low at the initial stage of battery charging. The data show that the battery temperature is lower than a reasonable operation temperature interval of the battery under the condition of not most, and the battery cycle life is facilitated, but parameters such as charge and discharge performance exertion, capacity retention rate and the like of the battery are affected, so that the charging performance of the battery is affected. As the battery charging time is extended, the battery generates heat, thereby increasing the temperature of the battery charging environment. However, when the temperature of the charging environment is high, the charging performance of the battery will also be affected. Therefore, in order to improve the charging performance of the battery during charging, it is generally necessary to maintain the battery at a set temperature interval.
Based on the above-mentioned research, the present application provides a battery charging control method, which can obtain a first temperature of a battery during a charging process; and further controls the operating state of the temperature regulator of the battery according to the first temperature. The temperature of the battery can be adjusted by controlling the running state of the temperature regulator, so that the heat exchange object exchanges heat with the battery at the object temperature, and the temperature of the battery can be adjusted by performing heat exchange operation on the heat exchange object and the battery, and the temperature of the battery can be controlled to be stabilized in a reasonable temperature interval, so that the charging performance of the battery is improved.
The battery charging control method provided by the embodiment of the application can be applied to control the battery charging process of any electric equipment, including but not limited to electric equipment such as electric vehicles (e.g. electric automobiles and electric bicycles), electric products (e.g. charging fans and charged dust collectors) and the like.
The battery in the embodiment of the application can be a lithium ion battery, a lithium metal battery and the like, such as a lithium cobaltate battery, a lithium manganate battery, a nickel cobalt lithium aluminate battery, a lithium iron phosphate battery, a lithium titanate battery, a lithium sulfur battery and the like. Alternatively, the battery in embodiments of the present application includes, but is not limited to, batteries of other material systems, such as lead acid batteries, nickel-metal hydride batteries, or sodium ion batteries, among others.
The execution subject may be an apparatus for performing battery charge control in the embodiments of the present application. The apparatus includes a controller and a temperature regulator; the controller can acquire the first temperature of the battery acquired by the temperature acquisition device in the battery charging process, and control the running state of the temperature regulator according to the first temperature; the temperature regulator can adjust the object temperature of the heat exchange object under the control of the controller, thereby realizing heat exchange between the heat exchange object and the battery. The device may be a device integrated in a powered device for controlling charging of a battery; the device may also be a device for controlling battery charging provided independently of the consumer, for example, the device may be a device provided in the charger for controlling battery charging.
For convenience of description, the specific processes of the embodiments of the present application will be described in detail below by taking an example in which the apparatus includes a controller and a temperature regulator.
Referring to fig. 1, an embodiment of the present application provides a battery charging control method, which specifically includes the following steps:
step 101: acquiring a first temperature of the battery in a charging process;
Step 102: controlling an operating state of a temperature regulator of the battery according to the first temperature; the temperature regulator is used for regulating the object temperature of the heat exchange object, and the heat exchange object is used for carrying out heat exchange with the battery.
In the embodiment of the application, the charging operation of the battery can be detected, and after the charging operation is detected, the temperature of the battery in the charging process is obtained, so that the first temperature is obtained.
Wherein the temperature of the battery may be acquired by the temperature acquisition unit at intervals, so as to obtain the first temperature, for example, the temperature of the battery may be acquired at intervals of 0.5 second, 1 second, 2 seconds.
Here, the temperature collector may be a collector integrated in the electrical consumer. For example, a temperature collector may be disposed inside the battery, through which temperature collection may be performed for each cell of the battery, thereby obtaining a plurality of cell temperatures; thereafter, a first temperature may be determined based on the plurality of cell temperatures. For example, the first temperature may be determined based on an average temperature of a plurality of cell temperatures, or the first temperature may be determined based on a maximum cell temperature, or the first temperature may be determined based on a minimum cell temperature.
After the first temperature is collected, the temperature collector may send the first temperature to the controller through a communication connection with the controller. If the controller is likewise a device integrated within the consumer, the temperature sensor may send the first temperature directly to the controller. If the controller is a device set independently of the electric device, the temperature collector may send the first temperature to the master controller of the electric device to send the first temperature to the controller through the master controller of the electric device; alternatively, the temperature collector may establish a wireless connection with the controller, and send the first temperature to the controller via the wireless connection.
Here, the temperature collector may also be a collector provided independently of the electrical consumer. For example, a temperature collector may be disposed around the charger to collect the temperature of the battery during charging, thereby obtaining the first temperature. The electric equipment is assumed to be a dust collector, and at the moment, a temperature collector can be arranged around a charging pile of the dust collector. After the dust collector is inserted into the charging pile, the battery of the dust collector can be attached to the temperature collector, and at the moment, the temperature around the battery can be collected through the temperature collector, so that the first temperature is obtained.
After the first temperature is collected, the temperature collector may send the first temperature to the controller through a communication connection with the controller. If the controller is a device integrated inside the powered device, the temperature collector may send the first temperature to an active of the charger to send the first temperature to the controller through the active of the charger; alternatively, the temperature collector may establish a wireless connection with the controller, and send the first temperature to the controller via the wireless connection. If the controller is the master of the charger, the temperature collector may send the first temperature directly to the controller.
The controller can control the operation state of the temperature regulator of the battery after acquiring the first temperature; wherein the operating state is used to indicate whether the thermostat is on or not, and a temperature regulation mode of the thermostat at the time of the on, for example, a mode of increasing the object temperature of the heat exchange object or a mode of decreasing the object temperature of the heat exchange object.
Here, the heat exchange object may be an object capable of conducting heat, wherein the heat exchange object may be a liquid or a solid. For example, the heat exchange object may be water, or may be a metal-based object.
In the embodiment of the present application, the heat exchange object may be an object that is previously set in the electric device and is capable of conducting heat, for example, for an electric vehicle, the cooling liquid in the electric vehicle may be used as the heat exchange object. For example, an expansion tank is typically provided in an electric vehicle, which can be used to store coolant in the electric vehicle. A water pump may also be provided in the electric vehicle, by means of which the coolant in the expansion tank can be pumped into the interior of the thermostat. At this time, the temperature regulator can raise the temperature of the cooling liquid; alternatively, the temperature regulator may reduce the temperature of the cooling liquid. Wherein the temperature regulator may be provided around the battery, at which time the heat exchange object and the battery may be subjected to a heat exchange operation, thereby regulating the temperature of the battery through the heat exchange operation.
In addition, the heat exchange object can be an object which is not in the electric equipment and can conduct heat independently arranged outside the electric equipment. For example, a water bag, a water tank, a metal sheet, a metal block, etc.
In the embodiment of the application, a first temperature of a battery is obtained in a charging process; and further controls the operating state of the temperature regulator of the battery according to the first temperature. The temperature of the battery can be adjusted by controlling the running state of the temperature regulator, so that the heat exchange object exchanges heat with the battery at the object temperature, and the temperature of the battery can be adjusted by performing heat exchange operation on the heat exchange object and the battery, and the temperature of the battery can be controlled to be stabilized in a reasonable temperature interval, so that the charging performance of the battery is improved.
In some embodiments of the application, controlling an operating state of a temperature regulator of a battery according to a first temperature includes:
determining whether a cooler in the thermostat meets a first open condition based on the first temperature;
controlling the cooler to be started under the condition that the cooler is determined to meet the first starting condition; wherein the cooler is used for reducing the object temperature of the heat exchange object to reduce the first temperature of the battery.
In the embodiment of the application, the temperature regulator comprises a cooler and a heater, wherein the temperature of the heat exchange object can be reduced when the cooler is opened, and the temperature of the heat exchange object can be increased when the heater is opened. Wherein the first opening condition is an opening condition of a cooler in the temperature regulator, and after the cooler is opened, the object temperature of the heat exchange object can be reduced to reduce the first temperature of the battery.
Here, the first temperature and the temperature threshold value may be compared to determine whether the cooler in the thermostat satisfies the first opening condition based on the comparison result. And if the first opening condition is determined to be met according to the comparison result of the first temperature and the temperature threshold value, controlling the cooler to be opened.
For example, if the heat exchange object is a coolant, the temperature of the coolant in the cooler may be reduced after the cooler is turned on. Since the temperature of the coolant and the temperature of the battery are not in an equilibrium state and heat exchange is started, the temperature of the battery is lowered.
The opening time of the cooler can be set more flexibly by controlling the opening mode of the cooler through the first temperature, so that the temperature of the battery can be regulated more flexibly. The temperature of the battery is gradually increased in the charging process, and the increased temperature can improve the charging and discharging capacity and the capacity retention rate of the battery. At this time, the cooler may be controlled to be turned on when the first temperature of the battery is close to the temperature threshold. By this processing method, the battery after the completion of charging can be brought into a high temperature region, and the charge/discharge capacity and capacity retention rate of the battery can be improved.
In some embodiments of the application, determining whether the cooler in the thermostat meets a first open condition based on the first temperature includes:
determining that the cooler meets a first opening condition under the condition that the first temperature is determined to be in a target temperature range; the target temperature range is determined based on a first temperature threshold value and a second temperature threshold value of the battery, wherein the first temperature threshold value is used for indicating the upper temperature limit value of the battery in the charging process, the second temperature threshold value is used for indicating the upper temperature limit value of the battery in the using process, and the first temperature threshold value is lower than the second temperature threshold value.
In the embodiment of the present application, the temperature threshold values described in the above embodiment may include a first temperature threshold value and a second temperature threshold value; the target temperature range is a temperature range which is larger than the first temperature threshold value and smaller than or equal to the second temperature threshold value. The upper limit of the temperature of the battery during the charging process can be understood as the highest cell temperature allowed during the charging process of the battery. The first temperature threshold is associated with the type of battery and the type of powered device, for example, the first temperature threshold may be a temperature value between 35 degrees and 40 degrees. The second temperature threshold may be a threshold value in a factory parameter of the battery for indicating an upper temperature limit value of the battery during use, for example, the second temperature threshold may be a temperature value between 45 degrees and 50 degrees.
Here, the first temperature and the first temperature threshold may be compared. And if the first temperature is smaller than or equal to the second temperature threshold, determining that the first temperature is in the target temperature range. At this time, it may be determined that the cooler in the thermostat satisfies the first on condition.
In the above embodiment, when the first temperature is within the target temperature range, the method of controlling the opening of the cooler may improve the threshold condition of the refrigeration mode of the temperature regulator, so that the battery cell of the battery after the charging is in the high temperature region and approaches to the high temperature threshold, so as to improve the charging and discharging capability and the capacity retention rate of the battery cell.
On the basis of the technical scheme described in the embodiment, the method further comprises the following steps:
acquiring the temperature of the battery at each acquisition time of the first period to obtain a plurality of second temperatures; the first time period is a time period after the cooler is started;
determining whether the current temperature of the battery is higher than a second temperature threshold value in a case where it is determined that the temperature of the battery does not decrease after the cooler is turned on based on the plurality of second temperatures; the second temperature threshold is used for indicating the upper temperature limit value of the battery in the use process of the battery;
and ending the charging operation of the battery in the case that the current temperature is higher than the second temperature threshold.
As is apparent from the above description, in the case where it is determined that the first temperature is within the target temperature range, it is determined that the cooler satisfies the first on condition, at which time the cooler may be controlled to be turned on. After the cooler is turned on, the object temperature of the heat exchange object is lowered to lower the temperature of the battery. Next, temperature change information of the battery after the cooler is turned on may be monitored; the temperature change information may be a decrease in the temperature of the battery or an increase in the temperature of the battery.
In specific implementation, the temperature of the battery can be collected at each collection time of the first period after the cooler is started, so that a plurality of second temperatures are obtained. The first period of time may be within 5 seconds, within 10 seconds, within 15 seconds, within 1 minute, within 2 minutes, etc. after the chiller is turned on. The acquisition time may be to acquire the battery temperature every one second, or to acquire the battery temperature every 5 seconds, or to acquire the battery temperature every 20 seconds.
After the plurality of second temperatures are acquired, temperature change information of the battery may be determined based on the plurality of second temperatures. Here, the temperature change information may be determined by comparing the temperature difference between the second temperatures acquired at the adjacent acquisition times. For example, if the second temperature acquired at time t=n is smaller than the second temperature acquired at time t=n-1, the temperature change information of the battery is determined as a temperature decrease. For another example, if the second temperature acquired at time t=n is greater than the second temperature acquired at time t=n-1, the temperature change information of the battery is determined to be a temperature increase.
Here, if it is determined that the change directions of the temperature differences between the second temperatures acquired at the adjacent acquisition times are not the same, the acquisition of the temperatures of the battery at the respective acquisition times of the target period may be continued, resulting in a plurality of target temperatures. If it is determined that the change directions of the temperature differences between the target temperatures acquired at the adjacent acquisition times are the same, temperature change information of the battery may be determined based on the plurality of target temperatures; wherein the target period is a period of time after the first period of time.
For example, the respective acquisition times for the first period are n-2, n-1, and n; if the second temperature acquired at the time n-2 is smaller than the second temperature acquired at the time n-1 and the temperature acquired at the time n-1 is larger than the second temperature acquired at the time n, it may be determined that the change directions of the temperature differences between the second temperatures acquired at the adjacent acquisition times are different. At this time, the temperature of the battery may be continuously collected at the respective collection times n+1, n+2, and n+3 of the target period, to obtain the target temperature. If it is determined that the target temperature acquired at the time n+1 is greater than the target temperature acquired at the time n+2 and that the target temperature acquired at the time n+2 is greater than the target temperature acquired at the time n+3, it may be determined that the change directions of the temperature differences between the target temperatures acquired at the adjacent acquisition times are the same, and at this time, it may be determined that the temperature change information of the battery is a temperature drop.
In the case where it is determined that the temperature of the battery does not decrease after the cooler is turned on based on the temperature variation information of the battery, the current temperature of the battery and the second temperature threshold value may be compared. Wherein if the current temperature of the battery is compared to be higher than the second temperature threshold, the thermostat may be set in a closed state and the charging operation of the battery is ended.
Through the processing mode, whether the temperature of the battery exceeds the second temperature threshold value or not can be monitored in real time under the condition that the temperature of the battery is controlled to be in a high temperature region, and the charging is controlled to be finished under the condition that the temperature of the battery exceeds the second temperature threshold value, so that the safety of the charging process is improved on the basis of improving the capacity retention rate of the battery core.
In some embodiments of the present application, the step of controlling the operation state of the temperature regulator of the battery according to the first temperature further includes the steps of:
in the case that the cooler is determined not to meet the first opening condition, determining whether a heater of the thermostat meets the second opening condition;
and controlling the heater of the temperature regulator to be turned on in the case that it is determined that the second on condition is satisfied.
In the embodiment of the application, after comparing the first temperature with the temperature threshold, if it is determined that the first temperature is not within the target temperature range according to the comparison result and it is determined that the first temperature is less than the first temperature threshold, it may be determined that the cooler does not satisfy the first opening condition. At this time, it may be determined that the temperature of the battery is not in the high temperature region.
Here, it may be determined whether the temperature of the battery continuously decreases. Wherein if it is determined that the temperature of the battery continues to decrease, it is determined that the second on condition of the heater is satisfied and the heater is controlled to be turned on. By turning on the heater, the object temperature of the heat exchange object can be increased to prevent the temperature of the battery from decreasing, thereby increasing the temperature of the battery and controlling the temperature of the battery to be located in a high temperature region.
In some embodiments of the present application, determining whether the heater of the thermostat meets a second on condition includes the steps of:
acquiring the temperature of the battery in a second period of time to obtain a plurality of third temperatures;
in the case where it is determined that the temperature of the battery falls based on the plurality of third temperatures, it is determined that the heater satisfies the second on condition.
Here, the second period is a period after detecting that the cooler does not satisfy the first on condition. For example, it is determined at time t=m that the cooler does not satisfy the first opening condition, then the period of m+1 to m+a may be determined as the second period; wherein a is a number greater than 1.
In the embodiment of the application, the temperature of the battery can be acquired at each acquisition time of the second period, so that a plurality of third temperatures are obtained. Wherein the second period of time may be within 5 seconds, within 10 seconds, within 15 seconds, within 1 minute, within 2 minutes, or the like after detecting that the cooler does not satisfy the first on condition. The acquisition time may be to acquire the battery temperature every one second, or to acquire the battery temperature every 5 seconds, or to acquire the battery temperature every 20 seconds.
After the plurality of third temperatures are acquired, temperature change information of the battery may be determined based on the plurality of third temperatures. Here, the temperature change information may be determined by comparing the temperature difference between the third temperatures acquired at the adjacent acquisition times. For example, if the third temperature acquired at time t=m is greater than the third temperature acquired at time t=m+1, the temperature change information of the battery is determined as a temperature decrease. For another example, if the third temperature acquired at time t=m is smaller than the second temperature acquired at time t=m+1, the temperature change information of the battery is determined to be a temperature increase.
In the case where it is determined that the temperature of the battery is decreased based on the temperature variation information of the battery, it may be determined that the heater satisfies the second on condition, at which time the heater may be controlled to be turned on.
Through the mode of controlling the heater to open under the condition that the temperature of the battery is determined to be reduced at a plurality of third temperatures, the heat exchange object can be heated, the electric energy of the charger is stored in the battery in a heat energy mode, and the temperature of the battery after the heat preservation working condition can be improved.
In some embodiments of the present application, the temperature of the battery is obtained during the second period of time to obtain a plurality of third temperatures, comprising the steps of:
controlling the heat exchange object and the battery to perform a heat exchange operation in case it is determined that the cooler does not satisfy the first opening condition;
and determining a second period of time during which the heat exchange object and the battery perform heat exchange operation, and acquiring a plurality of third temperatures at each acquisition time of the second period of time.
Here, if it is determined that the temperature threshold value at which the cooler is turned on is not reached based on the first temperature, in order to make the temperature of the battery closer to the temperature threshold value, the heat exchange object and the battery may be first subjected to a heat exchange operation. Since the object temperature of the heat exchange object and the temperature of the battery are different at the same time, there is a high possibility that the object temperature of the heat exchange object is greater than the temperature of the battery. In this case, if the heat exchange object and the battery are subjected to the heat exchange operation, the temperature of the battery may be raised or the temperature of the battery may be prevented from being lowered, thereby making the temperature of the battery closer to the temperature threshold.
Based on this, the heat exchange object and the battery can be controlled to perform the heat exchange operation first without turning on both the cooler and the heater. For example, if the heat exchange object is a coolant, the water pump may be controlled to be turned on to pump the coolant to the inner cavity of the thermostat via the water pump, and at this time, neither the cooler nor the heater is turned on. After that, the cooling liquid and the battery can perform a heat exchange operation.
Here, the second period may be determined during a heat exchange operation of the heat exchange object and the battery, and the plurality of third temperatures may be acquired at respective acquisition times of the second period. Wherein the second period may be within 5 seconds, within 10 seconds, within 15 seconds, within 1 minute, within 2 minutes, or the like after detecting that the cooler does not satisfy the first on condition, and controlling the heat exchange object and the battery to perform the heat exchange operation.
By controlling the heat exchange object and the battery to perform heat exchange operation, the temperature of the battery can be increased under the condition that a heater is not required to be started, so that the temperature of the battery is closer to a temperature threshold value, and the charging and discharging capacity and capacity retention rate of the battery core are improved.
In some embodiments of the present application, controlling an operation state of a temperature regulator of a battery according to the first temperature includes the steps of:
Determining the working state of a heater in the temperature regulator under the condition that the first temperature is higher than the second temperature threshold; the second temperature threshold is used for indicating the upper temperature limit value in the use process of the battery;
in the case where it is determined that the heater is in the on state based on the operation state, the heater is controlled to be turned off, and the charging operation of the battery is ended.
Here, the second temperature threshold may be a threshold value in a factory parameter of the battery for indicating an upper temperature limit value of the battery during use, for example, the second temperature threshold value may be a temperature value between 45 degrees and 50 degrees. Here, if it is determined that the first temperature of the battery is higher than the second temperature threshold, it is necessary to determine whether the heater of the thermostat is in an on state. Wherein if it is determined that the battery is in the on state, the heater is controlled to be turned off, and the charging operation of the battery is ended.
By the processing mode, under the condition that the first temperature exceeds the second temperature threshold value, the safety of the charging process can be improved on the basis of improving the capacity retention rate of the battery cell by controlling the end of charging.
The control process of the battery charging control method is described below by taking an electric vehicle as an example of a specific example, in which the first temperature threshold is 40 degrees, the second temperature threshold is 50 degrees, the heat exchange object is cooling liquid, and the temperature regulator includes a cooler Chiller and a Heater. Referring to the flow chart shown in fig. 2, this specific example specifically includes the following steps.
S201: detecting whether a battery of an electric vehicle is in a charging mode; wherein, if yes, executing S203, otherwise executing S202;
s202: exiting the battery control mode; at this time, the cooler Chiller, the Heater, and the water pump are in the off state.
S203: acquiring the temperature of a battery core of a battery to obtain a first temperature;
s204: judging whether the first temperature is less than or equal to a first temperature threshold value; wherein, if yes, step S205 is executed; otherwise, step S209 is executed;
s205: controlling the water pump to be started;
s206: acquiring the temperature of the battery in a second period of time to obtain a plurality of third temperatures;
s207: determining whether the temperature change information of the battery is a temperature decrease based on the plurality of third temperatures; wherein, if yes, step S208 is executed; otherwise, returning to continue to execute S201;
s208: controlling the heater to be started;
s209: judging whether the first temperature is smaller than a second temperature threshold value; wherein, if yes, S210 is executed, otherwise S202 is executed;
s210: controlling the water pump to be started and controlling the cooler to be started;
s211: acquiring the temperature of the battery at each acquisition time of the first period to obtain a plurality of second temperatures; the first time period is a time period after the cooler is started;
S212: determining whether the temperature change information of the battery is temperature non-decrease based on the plurality of second temperatures; wherein, if yes, it returns to S209, otherwise it returns to execution S201.
As can be seen from the above description, in the embodiment of the present application, whether the electric vehicle is in the charging mode is first determined, and if yes, whether the first temperature of the battery is less than or equal to the first temperature threshold XX is determined; wherein the first temperature threshold XX determines whether the chillers need to be turned on.
When the first temperature is lower than the first temperature threshold value XX, the water Pump pump=1 is started, the cooler Chiller=0 is not required to be started, and at the moment, the cooling liquid is not required to be cooled by the Chiller. After a period of time when the water pump is started, the regulation function of the water pump on the temperature of the battery after the water pump is started is judged. If the temperature of the battery is increased, the water pump is maintained to be started, and if the temperature of the battery is reduced, the current cooling liquid temperature is too low, and the Heater is required to be started to heat the cooling liquid.
When the first temperature is higher than the first temperature threshold XX (for example, 40 degrees) and lower than the second temperature threshold YY, the water Pump and the cooler are set to be turned on, namely, pump=1 and Chiller=1, and the Chiller needs to be turned on to cool the cooling liquid.
When the first temperature of the battery is higher than YY or is heated to YY, detecting whether the Heater is in an on state, and under the condition that the Heater is determined to be on, closing the Heater, simultaneously opening the Chiller to control the temperature of the cooling liquid, so that the battery slowly heats up or even does not heat up any more, controlling the temperature of the battery in a high-temperature area between XX and YY, and simultaneously enabling the temperature of the cooling liquid to be higher, thereby realizing that electric energy is stored in the battery core and the cooling liquid in a heat energy mode. The capacity retention rate of the battery can be improved in a low-temperature environment, and the cruising ability of the electric vehicle in the low-temperature environment is improved. In addition, if the vehicle is placed after charging, the initial temperatures of the battery and the cooling liquid are higher, and under the condition of the same heat exchange coefficient given by the same structure, the terminal temperature of the battery is higher than that of the battery of the conventional charging strategy after the vehicle is placed for the same time, so that the driving property of the vehicle is facilitated.
As shown in fig. 3, an embodiment of the present application provides a schematic diagram of a battery charging control system, which specifically includes: a battery 31, a temperature collector 32, a temperature regulator 33, and a controller 34.
The temperature collector is used for collecting the first temperature of the battery in the battery;
a controller for transmitting a control command to a temperature regulator of the battery according to the first temperature in response to a charging command to the battery; the temperature regulator is used for regulating the object temperature of a heat exchange object, wherein the heat exchange object is used for carrying out heat exchange with the battery;
And the temperature regulator is used for adjusting the running state of the temperature regulator based on the control instruction.
In the embodiment of the present application, the controller may control the operation state of the temperature regulator of the battery through the embodiment corresponding to the battery charging control method, which will not be described in detail herein.
In the embodiment of the application, the first temperature of the battery can be obtained in the charging process; and further controls the operating state of the temperature regulator of the battery according to the first temperature. The temperature of the battery can be adjusted by controlling the running state of the temperature regulator, so that the heat exchange object exchanges heat with the battery at the object temperature, and the temperature of the battery can be adjusted by performing heat exchange operation on the heat exchange object and the battery, and the temperature of the battery can be controlled to be stabilized in a reasonable temperature interval, so that the charging performance of the battery is improved.
As shown in fig. 4, some embodiments of the present application provide a battery charging control device for performing the battery charging control method provided in any of the above embodiments, the device including:
an acquisition unit 41 for acquiring a first temperature of the battery during charging;
a control unit 42 for controlling an operation state of a temperature regulator of the battery according to the first temperature; the temperature regulator is used for regulating the object temperature of a heat exchange object, and the heat exchange object is used for carrying out heat exchange with the battery.
A control unit 42 for: determining, based on the first temperature, whether a first opening condition is satisfied by a cooler of the thermostat; controlling the cooler to be started under the condition that the cooler is determined to meet the first starting condition; wherein the cooler is configured to reduce an object temperature of the heat exchange object to reduce a first temperature of the battery.
A control unit 42 for: determining that the cooler meets the first opening condition under the condition that the first temperature is determined to be in a target temperature range; the target temperature range is determined based on a first temperature threshold value and a second temperature threshold value of the battery, the first temperature threshold value is used for indicating the upper temperature limit value of the battery in the charging process, the second temperature threshold value is used for indicating the upper temperature limit value of the battery in the using process, and the first temperature threshold value is lower than the second temperature threshold value.
A control unit 42 for: acquiring the temperature of the battery at each acquisition time of the first period to obtain a plurality of second temperatures; the first time period is a time period after the cooler is started; determining whether the current temperature of the battery is higher than a second temperature threshold value in a case where it is determined that the temperature of the battery does not decrease after the cooler is turned on based on the plurality of second temperatures; wherein the second temperature threshold is used for indicating the upper temperature limit value of the battery in the use process; and ending the charging operation of the battery in the case that the current temperature is higher than the second temperature threshold.
A control unit 42 for: determining whether a heater of the thermostat meets a second opening condition if it is determined that the cooler does not meet the first opening condition; and controlling the heater of the temperature regulator to be turned on in the case that the second turning-on condition is determined to be satisfied.
A control unit 42 for: acquiring the temperature of the battery in a second period of time to obtain a plurality of third temperatures; in the case where it is determined that the temperature of the battery falls based on the plurality of third temperatures, it is determined that the heater satisfies the second on condition.
A control unit 42 for: controlling the heat exchange object and the battery to perform a heat exchange operation in a case where it is determined that the cooler does not satisfy the first opening condition; and determining the second period of time during the process of performing heat exchange operation on the heat exchange object and the battery, and acquiring the plurality of third temperatures at each acquisition time of the second period of time.
A control unit 42 for: determining the working state of a heater in the temperature regulator under the condition that the first temperature is higher than a second temperature threshold value; wherein the second temperature threshold is used for indicating an upper temperature limit value in the use process of the battery; and controlling the heater to be turned off and ending the charging operation of the battery in the case that the heater is determined to be in the on state based on the operating state.
The foregoing description of various embodiments is intended to highlight differences between the various embodiments, which may be the same or similar to each other by reference, and is not repeated herein for the sake of brevity.
Another embodiment of the present application provides an electronic device, which may be a device for performing product analysis on an industrial production line such as a host computer, and the electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the program to implement the product analysis method of any one of the above embodiments.
As shown in fig. 5, the electronic device 50 may include: processor 500, memory 501, bus 502 and communication interface 503, processor 500, communication interface 503 and memory 501 being connected by bus 502; the memory 501 stores a computer program executable on the processor 500, which when executed by the processor 500 performs the method provided by any of the previous embodiments of the application.
The memory 501 may include a high-speed random access memory (RAM: random Access Memory), and may also include a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory. The communication connection between the system network element and at least one other network element is implemented via at least one communication interface 503 (which may be wired or wireless), the internet, a wide area network, a local network, a metropolitan area network, etc. may be used.
Bus 502 may be an ISA bus, a PCI bus, an EISA bus, or the like. The buses may be divided into address buses, data buses, control buses, etc. The memory 501 is configured to store a program, and the processor 500 executes the program after receiving an execution instruction, and the method disclosed in any of the foregoing embodiments of the present application may be applied to the processor 500 or implemented by the processor 500.
The processor 500 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuitry in hardware or instructions in software in the processor 500. The processor 500 may be a general-purpose processor, and may include a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), and the like; but may also be a Digital Signal Processor (DSP), application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in the memory 501, and the processor 500 reads the information in the memory 501, and in combination with its hardware, performs the steps of the method described above.
The electronic device provided by the embodiment of the application and the method provided by the embodiment of the application have the same beneficial effects as the method adopted, operated or realized by the electronic device and the method provided by the embodiment of the application due to the same inventive concept.
Another embodiment of the present application provides a computer-readable storage medium having stored thereon a computer program that is executed by a processor to implement the control method of any of the above embodiments.
Referring to fig. 6, a computer readable storage medium is shown as an optical disc 20 having a computer program (i.e., a program product) stored thereon, which, when executed by a processor, performs the method provided by any of the embodiments described above.
It should be noted that examples of the computer readable storage medium may also include, but are not limited to, a phase change memory (PRAM), a Static Random Access Memory (SRAM), a Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), a Read Only Memory (ROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a flash memory, or other optical or magnetic storage medium, which will not be described in detail herein.
Another embodiment of the present application provides a computer program product including a computer program that is executed by a processor to implement the control method of any of the above embodiments.
The computer readable storage medium and the computer program product provided by the above embodiments of the present application are both the same as the methods provided by the embodiments of the present application, and have the same advantages as the methods adopted, operated or implemented by the application program stored therein.
It should be noted that:
the term "module" is not intended to be limited to a particular physical form. Depending on the particular application, modules may be implemented as hardware, firmware, software, and/or combinations thereof. Furthermore, different modules may share common components or even be implemented by the same components. There may or may not be clear boundaries between different modules.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose devices may also be used with the examples herein. The required structure for the construction of such devices is apparent from the description above. In addition, the present application is not directed to any particular programming language. It will be appreciated that the teachings of the present application described herein may be implemented in a variety of programming languages, and the above description of specific languages is provided for disclosure of enablement and best mode of the present application.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the flowcharts of the figures may include a plurality of sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily being sequential, but may be performed in turn or alternately with other steps or at least a portion of the other steps or stages.
The foregoing examples merely illustrate embodiments of the application and are described in more detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.

Claims (14)

1. A battery charge control method, characterized by comprising:
acquiring a first temperature of the battery in a charging process;
controlling an operating state of a temperature regulator of the battery according to the first temperature; the temperature regulator is used for regulating the object temperature of a heat exchange object, wherein the heat exchange object is used for carrying out heat exchange with the battery;
wherein controlling an operating state of a temperature regulator of the battery according to the first temperature includes:
adjusting the object temperature of the heat exchange object according to the first temperature and the target temperature range; the target temperature range is larger than a first temperature threshold and smaller than or equal to a second temperature threshold, the first temperature threshold is used for indicating the upper temperature limit value of the battery in the charging process, and the second temperature threshold is used for indicating the upper temperature limit value of the battery in the using process.
2. The method of claim 1, wherein controlling the operating state of the temperature regulator of the battery according to the first temperature comprises:
determining, based on the first temperature, whether a first opening condition is satisfied by a cooler of the thermostat;
Controlling the cooler to be started under the condition that the cooler is determined to meet the first starting condition; wherein the cooler is configured to reduce an object temperature of the heat exchange object to reduce a first temperature of the battery.
3. The method of claim 2, wherein the determining whether the thermostat cooler meets a first on condition based on the first temperature comprises:
and determining that the cooler meets the first opening condition under the condition that the first temperature is determined to be in a target temperature range.
4. A method according to claim 2 or 3, characterized in that the method further comprises:
acquiring the temperature of the battery at each acquisition time of the first period to obtain a plurality of second temperatures; the first time period is a time period after the cooler is started;
determining whether the current temperature of the battery is higher than a second temperature threshold value in a case where it is determined that the temperature of the battery does not decrease after the cooler is turned on based on the plurality of second temperatures; wherein the second temperature threshold is used for indicating the upper temperature limit value of the battery in the use process;
And ending the charging operation of the battery in the case that the current temperature is higher than the second temperature threshold.
5. The method of claim 2, wherein controlling the operating state of the temperature regulator of the battery according to the first temperature comprises:
determining whether a heater of the thermostat meets a second opening condition if it is determined that the cooler does not meet the first opening condition;
and controlling the heater of the temperature regulator to be turned on in the case that the second turning-on condition is determined to be satisfied.
6. The method of claim 5, wherein the determining whether the heater of the thermostat meets a second on condition comprises:
acquiring the temperature of the battery in a second period of time to obtain a plurality of third temperatures; the second period is a period after detecting that the cooler does not satisfy the first opening condition;
in the case where it is determined that the temperature of the battery falls based on the plurality of third temperatures, it is determined that the heater satisfies the second on condition.
7. The method of claim 6, wherein the obtaining the temperature of the battery during the second period of time to obtain a plurality of third temperatures comprises:
Controlling the heat exchange object and the battery to perform a heat exchange operation in a case where it is determined that the cooler does not satisfy the first opening condition and the temperature of the heat exchange object is greater than the temperature of the battery;
and determining the second period of time during the process of performing heat exchange operation on the heat exchange object and the battery, and acquiring the plurality of third temperatures at each acquisition time of the second period of time.
8. The method of claim 1, wherein controlling the operating state of the temperature regulator of the battery according to the first temperature comprises:
determining the working state of a heater in the temperature regulator under the condition that the first temperature is higher than a second temperature threshold value; wherein the second temperature threshold is used for indicating an upper temperature limit value in the use process of the battery;
and controlling the heater to be turned off and ending the charging operation of the battery in the case that the heater is determined to be in the on state based on the operating state.
9. A battery charge control device, characterized by comprising:
an acquisition unit configured to acquire a first temperature of the battery during charging;
A control unit for controlling an operation state of a temperature regulator of the battery according to the first temperature; the temperature regulator is used for regulating the object temperature of a heat exchange object, wherein the heat exchange object is used for carrying out heat exchange with the battery;
the control unit is used for adjusting the object temperature of the heat exchange object according to the first temperature and the target temperature range; the target temperature range is larger than a first temperature threshold and smaller than or equal to a second temperature threshold, the first temperature threshold is used for indicating the upper temperature limit value of the battery in the charging process, and the second temperature threshold is used for indicating the upper temperature limit value of the battery in the using process.
10. A battery charge control system, comprising: the device comprises a battery, a temperature collector, a temperature regulator and a controller;
the temperature collector is used for collecting a first temperature of a battery in the battery;
the controller is used for responding to a charging instruction of the battery and sending a control instruction to a temperature regulator of the battery according to the first temperature; the temperature regulator is used for regulating the object temperature of a heat exchange object, wherein the heat exchange object is used for carrying out heat exchange with the battery;
The temperature regulator is used for adjusting the running state of the temperature regulator based on the control instruction;
wherein the controller is used for adjusting the object temperature of the heat exchange object according to the first temperature and the target temperature range; the target temperature range is larger than a first temperature threshold and smaller than or equal to a second temperature threshold, the first temperature threshold is used for indicating the upper temperature limit value of the battery in the charging process, and the second temperature threshold is used for indicating the upper temperature limit value of the battery in the using process.
11. A powered device comprising the battery charge control system of claim 10.
12. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the method of any one of claims 1 to 8.
13. A computer readable storage medium having stored thereon a computer program, wherein the computer program is executed by a processor to implement the method of any of claims 1 to 8.
14. A computer program product comprising a computer program, characterized in that the computer program is executed by a processor to implement the method of any one of claims 1 to 8.
CN202310871182.9A 2023-07-17 2023-07-17 Battery charging control method, system, device, equipment and storage medium Pending CN116613402A (en)

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