WO2023093209A1 - 电池温度控制方法、装置、存储介质及计算机设备 - Google Patents

电池温度控制方法、装置、存储介质及计算机设备 Download PDF

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Publication number
WO2023093209A1
WO2023093209A1 PCT/CN2022/117575 CN2022117575W WO2023093209A1 WO 2023093209 A1 WO2023093209 A1 WO 2023093209A1 CN 2022117575 W CN2022117575 W CN 2022117575W WO 2023093209 A1 WO2023093209 A1 WO 2023093209A1
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WIPO (PCT)
Prior art keywords
temperature value
management system
thermal management
preset
battery
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PCT/CN2022/117575
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English (en)
French (fr)
Inventor
倪瑞林
曲宏鹏
武橦
黄贤辉
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三一重型装备有限公司
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Publication of WO2023093209A1 publication Critical patent/WO2023093209A1/zh

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/63Control systems
    • H01M10/633Control systems characterised by algorithms, flow charts, software details or the like
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Definitions

  • the present application relates to the technical field of batteries, in particular to a battery temperature control method, device, storage medium and computer equipment.
  • the battery pack is the power source of the electric wide-body vehicle.
  • the temperature should not be too high during operation, otherwise it will affect the service life of the battery. In severe cases, thermal runaway will cause the battery Failure will affect driving safety. Therefore, in order to ensure driving safety, it is necessary to adjust the working mode of the battery thermal management system to control the battery temperature.
  • the working mode of the thermal management system is usually adjusted according to the temperature of the battery pack, so as to control the battery temperature.
  • the adjustment of the working mode of the thermal management system is not only based on the temperature of the battery pack, but also the current working mode of the thermal management system.
  • This method of adjusting the working mode of the thermal management system only based on monitoring the temperature of the battery pack, when the temperature of the battery is slightly higher At this time, the air-conditioning system in the thermal management system will be directly turned on for cooling. However, if the air-conditioning is not turned on at this time, the battery can also be cooled only based on the current self-circulation mode of the thermal management system.
  • the self-circulation mode when the battery temperature is slightly higher, the self-circulation mode is adjusted to the cooling mode, which will cause Increased energy consumption of the thermal management system.
  • the present application provides a battery temperature control method, device, storage medium and computer equipment, mainly aiming at improving the accuracy of battery temperature control and reducing the energy consumption of a thermal management system for controlling the battery temperature.
  • a battery temperature control method including:
  • the thermal management system determines the thermal management system based on the temperature values corresponding to the respective batteries The target temperature value of the coolant in the medium;
  • the temperature of the battery is controlled.
  • a battery temperature control device including:
  • An acquisition unit configured to acquire the temperature value corresponding to each battery in the battery pack, and acquire the actual temperature value of the coolant in the thermal management system that controls the temperature of the battery;
  • a judging unit configured to judge whether the actual temperature value of the cooling liquid is greater than or equal to a first preset actual temperature value and less than or equal to a second preset actual temperature value;
  • the first determining unit is configured to: if the actual temperature value is greater than or equal to the first preset actual temperature value and less than or equal to the second preset actual temperature value, based on the temperature values corresponding to the respective batteries , determining the target temperature value of the coolant in the thermal management system;
  • a second determining unit configured to determine the next working mode of the thermal management system according to the actual temperature value, the target temperature value and the current working mode of the thermal management system;
  • a control unit configured to control the temperature of the battery based on the next working mode.
  • a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the following steps are implemented:
  • the thermal management system determines the thermal management system based on the temperature values corresponding to the respective batteries The target temperature value of the coolant in the medium;
  • the temperature of the battery is controlled.
  • a computer device including a memory, a processor, and a computer program stored on the memory and operable on the processor, and the processor implements the following steps when executing the program:
  • the thermal management system determines the thermal management system based on the temperature values corresponding to the respective batteries The target temperature value of the coolant in the medium;
  • the temperature of the battery is controlled.
  • the present application compared with the current method of adjusting the working mode of the thermal management system according to the temperature of the battery pack to control the battery temperature, the present application adopts Obtain the temperature value corresponding to each battery in the battery pack, and obtain the actual temperature value of the coolant in the thermal management system that controls the temperature of the battery; and determine whether the actual temperature value of the coolant is greater than or equal to the first preset The actual temperature value is less than or equal to the second preset actual temperature value; then if the actual temperature value is greater than or equal to the first preset actual temperature value and less than or equal to the second preset actual temperature value, Then, based on the temperature values corresponding to the respective batteries, determine the target temperature value of the coolant in the thermal management system; at the same time, according to the actual temperature, the target temperature value and the current working mode of the thermal management system , to determine the next step working mode of the thermal management system; finally based on the next step working mode, control the temperature of the
  • FIG. 1 shows a flowchart of a battery temperature control method provided by an embodiment of the present application
  • Fig. 2 shows a flow chart of another battery temperature control method provided by the embodiment of the present application
  • Fig. 3 shows a schematic structural diagram of a battery temperature control device provided by an embodiment of the present application
  • Fig. 4 shows a schematic structural diagram of another battery temperature control device provided by an embodiment of the present application.
  • FIG. 5 shows a schematic diagram of a physical structure of a computer device provided by an embodiment of the present application.
  • adjusting the working mode of the thermal management system according to the temperature of the battery pack to realize the control of the battery temperature leads to low accuracy of battery temperature control.
  • the current working mode of the thermal management system is the self-circulation mode
  • the self-circulation mode will be adjusted to the cooling mode, which will increase the energy consumption of the thermal management system.
  • an embodiment of the present application provides a battery temperature control method, as shown in FIG. 1 , the method includes the following steps.
  • the heat management system includes a refrigeration system and a circulation system
  • the refrigeration system includes a compressor
  • the compressor is used to heat the cooling liquid in the heat management system
  • the function of the circulation system is to promote The cooling liquid circulates around the battery pack
  • the battery pack is composed of a plurality of batteries.
  • the embodiment of the present application uses the actual cooling liquid in the thermal management system temperature, target temperature, and the current working mode of the thermal management system, determine the next working mode of the thermal management system, and finally control the battery temperature based on the next working mode, which can avoid when the battery temperature is slightly
  • the problem of adjusting the self-circulation mode to the cooling mode is high, which improves the accuracy of battery temperature control and can also reduce the energy consumption of the thermal management system that controls the battery temperature.
  • the embodiment of the present application is mainly applied to the scene of controlling the battery temperature, and the execution subject of the embodiment of the present application is a device or device capable of controlling the battery temperature, which may be specifically set on the client side or the server side.
  • the method is to install a temperature sensor on each battery in the battery pack, and the temperature value read by the temperature sensor The values are all displayed on the user terminal. After the electric vehicle with the battery pack installed is started or during the process of charging the battery pack, the temperature corresponding to each battery in the battery pack can be measured by the temperature sensor, and each temperature value obtained by the measurement Feedback to the user terminal can obtain the temperature value corresponding to each battery in the battery pack.
  • a temperature sensor will be installed on the inner wall of the circulation pipeline in the circulation system, and the temperature of the coolant in the circulation pipeline measured by the temperature sensor will be Sending the temperature to the user terminal can obtain the actual temperature of the coolant in the thermal management system that controls the temperature of the battery, and judge whether the actual temperature value meets the requirements. If it meets the requirements, then based on each battery determine the target temperature of the coolant in the thermal management system based on the corresponding temperature value and the actual temperature of the coolant, and at the same time, according to the actual temperature, the target temperature value and the current working temperature of the thermal management system mode, determine the next working mode of the thermal management system, and finally control the battery temperature based on the next working mode.
  • the thermal management system in order to ensure driving safety, it is necessary to detect whether the thermal management system that controls the battery temperature is faulty. Based on this, after obtaining the actual temperature value corresponding to the coolant in the thermal management system, it is necessary to determine whether the Whether the actual temperature value is greater than or equal to the first preset actual temperature value, and at the same time judge whether the actual temperature value is less than or equal to the second preset actual temperature value, if the actual temperature value is greater than or equal to the first preset actual temperature value temperature value, and less than or equal to the second preset actual temperature value, it means that the thermal management system is operating normally, that is, the temperature of the cooling liquid cannot be too high, and at the same time it cannot be too low, and the temperature of the cooling liquid is too high or too low will indicate that the thermal management system is faulty.
  • the target temperature value of the coolant in the thermal management system is determined based on the temperature values corresponding to the respective batteries. And based on the actual temperature value, the target temperature value and the current working mode of the thermal management system, determine the next working mode of the thermal management system, and based on the next working mode, perform a temperature check on the battery temperature Control can prevent the thermal management system from failing to control the battery temperature, which will cause the battery temperature to be too high and affect driving safety.
  • the thermal management system determines the thermal management system based on the temperature values corresponding to the respective batteries The target temperature value of the coolant in the middle.
  • the actual temperature value is greater than or equal to the first preset actual temperature value and less than or equal to the second preset actual temperature value, it means that the thermal management system is operating normally.
  • a target temperature value is set for the coolant in the thermal management system, and based on the actual temperature of the coolant, the target temperature value and the current working mode of the thermal management system, Determine the next step working mode of the thermal management system, and finally control the battery temperature based on the next step working mode, which can avoid the problem of adjusting the self-circulation mode to the cooling mode when the battery temperature is slightly higher, and improves the The accuracy of battery temperature control can also reduce the energy consumption of the thermal management system that controls the battery temperature.
  • a next step working mode of the thermal management system is determined according to the actual temperature value, the target temperature value and the current working mode of the thermal management system.
  • the current working mode of the thermal management system is standby mode or cooling mode or self-circulation mode.
  • the compressor in the thermal management system is turned off, and the circulation pump is also turned off.
  • the cooling mode The compressor in the heat management system is on, but the circulation pump is off.
  • the self-circulation mode the circulation pump in the heat management system is on, but the compressor is off.
  • the current working mode of the thermal management system can be obtained.
  • compare the actual temperature with the target temperature value, and determine the current working mode of the thermal management system according to the comparison result Describe the working mode of the thermal management system in the next step, and finally control the temperature of the battery based on the working mode in the next step, avoiding adjusting the working mode of the thermal management system only according to the battery temperature, and improving the efficiency of battery temperature control accuracy while reducing energy consumption in the thermal management system that controls the battery temperature.
  • the temperature of the battery is controlled.
  • the working mode of the thermal management system is adjusted to the next-step working mode, and finally based on the next-step working mode, the During the driving process or the charging process, the battery is cooled to avoid excessive battery temperature affecting driving safety or affecting the service life of the battery.
  • the current working mode determines the next working mode of the thermal management system, and finally controls the battery temperature based on the next working mode, which can avoid the problem of adjusting the self-circulation mode to the cooling mode when the battery temperature is slightly higher
  • the problem is to improve the accuracy of battery temperature control, and at the same time reduce the energy consumption of the thermal management system that controls the battery temperature.
  • this application compared with the current method of adjusting the working mode of the thermal management system according to the temperature of the battery pack to control the battery temperature, this application obtains the temperature corresponding to each battery in the battery pack. temperature value, and obtain the actual temperature of the coolant in the thermal management system that controls the temperature of the battery; and determine the target temperature value of the coolant in the thermal management system based on the temperature values corresponding to the batteries; At the same time, according to the actual temperature, the target temperature value and the current working mode of the thermal management system, determine the next working mode of the thermal management system; performing control, thereby determining the next-step working mode of the thermal management system based on the actual temperature and target temperature of the cooling liquid in the thermal management system, and the current working mode of the thermal management system, and finally based on the next-step working mode, Controlling the battery temperature can avoid the problem of adjusting the self-circulation mode to the cooling mode when the battery temperature is slightly high, improves the accuracy of battery temperature control, and can also reduce the performance of
  • the embodiment of the present application provides another method for controlling the battery temperature, as shown in FIG. 2 , the The method includes the following steps.
  • the BMS when the vehicle is started, that is, when the battery pack enters the working state, or when the battery pack is ready to be charged, the BMS communicates with the TMS to wake up the TMS, wherein the BMS represents the battery management system, and TMS represents the thermal management system. system, after the battery pack is powered on at high voltage, the thermal management system that controls the temperature of the battery pack is charged and enters the standby mode.
  • the actual temperature value of the coolant in the battery determine whether the thermal management system is faulty, and if there is no fault, then determine the maximum temperature among the various temperature values based on the temperature values corresponding to the respective batteries value and the minimum temperature value, and based on the maximum temperature value and the minimum temperature value, determine the first temperature value of the coolant, and finally determine based on the actual temperature value, the first temperature value and the current working mode of the thermal management system
  • the next working mode of the thermal management system is finally to control the temperature of the battery based on the next working mode.
  • the specific judgment method is to judge the temperature of the cooling liquid Whether the actual temperature value is greater than or equal to the first preset actual temperature value and less than or equal to the second preset actual temperature value, if the actual temperature value is less than the first preset actual temperature value, or greater than the second preset actual temperature value A preset actual temperature value indicates that the thermal management system is faulty.
  • the method includes: if the actual temperature value is less than the first preset actual temperature value, or greater than the second preset actual temperature value , it is determined that there is a fault in the thermal management system, wherein the second preset actual temperature value is greater than the first preset actual temperature value; based on the fault information corresponding to the fault, the working of the thermal management system The mode is adjusted to the standby mode, and the fault information is sent to the user terminal, so that the user can check and repair the thermal management system based on the fault information.
  • the thermal management system based on the actual temperature of the coolant in the thermal management system, if the actual temperature value is less than the first preset actual temperature value, or greater than the second preset actual temperature value, then the thermal management system The temperature of the battery cannot be controlled, that is, the thermal management system fails, and based on the fault information corresponding to the fault, the working mode of the thermal management system is kept in standby mode, and the fault information is fed back to the user terminal, the user terminal overhauls the thermal management system based on the fault information, and then continues to monitor the actual temperature corresponding to the coolant after the overhaul is completed.
  • the actual temperature value is greater than or equal to the first preset actual temperature value and less than or equal to the second preset actual temperature value, then based on the temperature values corresponding to each battery, determine the Maximum temperature value and minimum temperature value.
  • the thermal management system controls the temperature of the battery, because the battery pack contains multiple batteries, and the temperature corresponding to each battery may be different, so it is necessary to determine the maximum temperature value and the minimum temperature value of each temperature value, through the temperature sensor, The temperature values corresponding to each battery can be measured, and the maximum temperature value and the minimum temperature value can be determined in each temperature value.
  • the method further includes: judging whether the maximum temperature value is less than the second preset temperature value, and whether the minimum temperature value is less than a third preset temperature value, wherein the second preset temperature value The temperature value is greater than the third preset temperature value; if the maximum temperature value is smaller than the second preset temperature value, and the minimum temperature value is smaller than the third preset temperature value, then determine the thermal management The next working mode of the system is standby mode.
  • comparing the maximum temperature value with a second preset temperature value, and comparing the minimum temperature value with a third preset temperature value if the maximum temperature value is less than the second preset temperature value value, and the minimum temperature value is less than the third preset temperature value, it means that the temperature of the battery pack is within a reasonable range at this time, and there is no need to cool down the battery, so it is determined that the thermal management system
  • the next working mode is the standby mode, that is, the compressor in the thermal management system is turned off, and the circulation pump is also turned off.
  • the maximum temperature value is greater than a first preset temperature value, and the minimum temperature value is greater than a second preset temperature value, then determine that the target temperature value of the coolant in the thermal management system is the first temperature value, wherein, The first preset temperature value is greater than the second preset temperature value.
  • the target temperature value of the coolant in the management system is set as the first temperature value, and according to the actual temperature, the first temperature value and the current working mode of the thermal management system, determine the next step of the work of the thermal management system mode, and finally adjust the battery temperature based on the working mode in the next step.
  • a next-step working mode of the thermal management system is determined according to the actual temperature, the first temperature value, and the current working mode of the thermal management system.
  • step 205 specifically includes: if the actual temperature is greater than or equal to the first temperature value, then determine the thermal management system The next working mode is cooling mode; if the actual temperature is less than or equal to the fourth preset temperature value, then determine that the next working mode of the thermal management system is self-circulation mode; if the actual temperature is greater than the fourth If the preset temperature value is less than the first temperature value, the next working mode of the thermal management system is determined based on the current working mode.
  • the coolant needs to be cooled, so it is determined that the next working mode of the thermal management system is the cooling mode, that is, turn on
  • the compressor refrigerates the coolant, and at the same time turns on the circulation pump, and uses the circulation pump to circulate the coolant around the battery pack to achieve the purpose of cooling the battery.
  • the rotation speed of the compressor needs to be adjusted. Based on this, the method includes: subtracting the actual temperature from the first temperature value to obtain the temperature difference corresponding to the coolant in the thermal management system; if the If the temperature difference is greater than the preset temperature difference, adjust the rotation speed of the compressor in the refrigeration mode to the first rotation speed; if the temperature difference is less than or equal to the preset temperature difference, then adjust The rotation speed of the middle compressor is adjusted to a second rotation speed, wherein the first rotation speed is greater than the second rotation speed.
  • the actual temperature is subtracted from the first temperature value to obtain the temperature difference corresponding to the coolant in the thermal management system, if the temperature difference is greater than the preset temperature difference , it means that the temperature of the cooling liquid is high, that is, the temperature of the battery is high.
  • the speed of the compressor needs to be increased, that is, the speed of the compressor is adjusted to the first speed to realize Rapidly cool down the battery.
  • the compressor can cool down the battery at a relatively low speed. In order to reduce the energy consumption of the compressor, it is necessary to Adjusting the rotation speed of the compressor in the refrigeration mode to the second rotation speed.
  • the temperature of the battery pack is good and is in a safe state.
  • the circulation pump is turned on at this time.
  • the next working mode of the thermal management system is the self-circulation mode, that is, the circulation pump is on, but the compressor is off.
  • the method includes: if the current working mode is standby mode or self-circulation mode, then determining that the next working mode of the thermal management system is self-circulation mode; If the current working mode is the cooling mode, it is determined that the next working mode of the thermal management system is the cooling mode.
  • the current working mode of the thermal management system determines the current working mode of the thermal management system, if the current working mode is standby mode or Self-circulation mode, based on the self-circulation mode, it is also possible to cool the battery, and then determine that the next working mode of the thermal management system is the self-circulation mode. If the current working mode is the cooling mode, in order to avoid constant If switching the working mode causes energy consumption, it is determined that the next working mode of the thermal management system is still the cooling mode.
  • the temperature of the battery is controlled.
  • the temperature of the battery is controlled based on the self-circulation mode. If the one-step working mode is a cooling mode, the temperature of the battery is controlled based on the cooling mode.
  • this application compared with the current method of adjusting the working mode of the thermal management system according to the temperature of the battery pack to control the battery temperature, this application obtains the corresponding battery temperature of each battery in the battery pack. temperature value, and obtain the actual temperature of the coolant in the thermal management system that controls the battery temperature; and determine the target temperature value of the coolant in the thermal management system based on the temperature values corresponding to the batteries; and At the same time, according to the actual temperature, the target temperature value and the current working mode of the thermal management system, determine the next working mode of the thermal management system; The temperature is controlled, so the next step working mode of the thermal management system is determined based on the actual temperature of the coolant in the thermal management system, the target temperature and the current working mode of the thermal management system, and finally based on the next step working mode , controlling the battery temperature can avoid the problem of adjusting the self-circulation mode to the cooling mode when the battery temperature is slightly high, improves the accuracy of battery temperature control, and can also reduce the thermal management system that
  • the embodiment of the present application provides a battery temperature control device. As shown in FIG. A determination unit 34 and a control unit 35 .
  • the acquiring unit 31 can be used to acquire the temperature value corresponding to each battery in the battery pack, and acquire the actual temperature value of the coolant in the thermal management system that controls the temperature of the battery.
  • the judging unit 32 may be used to judge whether the actual temperature value of the cooling liquid is greater than or equal to a first preset actual temperature value and less than or equal to a second preset actual temperature value.
  • the first determining unit 33 may be configured to: if the actual temperature value is greater than or equal to the first preset actual temperature value and less than or equal to the second preset actual temperature value, based on the Corresponding to the temperature value, determine the target temperature value of the coolant in the thermal management system.
  • the second determining unit 34 can be configured to determine the next working mode of the thermal management system according to the actual temperature value, the target temperature value and the current working mode of the thermal management system.
  • the control unit 35 can be used to control the temperature of the battery based on the next working mode.
  • the target temperature value of the coolant in the thermal management system in order to determine the target temperature value of the coolant in the thermal management system, as shown in FIG.
  • the maximum temperature value and the minimum temperature value in the temperature values if the maximum temperature value is greater than the first preset temperature value, and the minimum temperature value is greater than the second preset temperature value, then it is determined that the coolant in the thermal management system
  • the target temperature value is a first temperature value, wherein the first preset temperature value is greater than the second preset temperature value.
  • the first determination unit 33 can also be used to determine whether the maximum temperature value is less than the second preset temperature value, and the minimum Whether the temperature value is less than a third preset temperature value, wherein the second preset temperature value is greater than the third preset temperature value; if the maximum temperature value is less than the second preset temperature value, and the minimum If the temperature value is less than the third preset temperature value, it is determined that the next working mode of the thermal management system is the standby mode.
  • the second determination unit 34 may be specifically configured to determine the thermal The next working mode of the management system is cooling mode; if the actual temperature is less than or equal to the fourth preset temperature value, then determine that the next working mode of the thermal management system is self-circulation mode; if the actual temperature is greater than the set If the fourth preset temperature value is lower than the first temperature value, the next working mode of the thermal management system is determined based on the current working mode.
  • the second determining unit 34 can also be used to determine if the current working mode is standby mode or self-circulation mode, it is determined that the next working mode of the thermal management system is the self-circulation mode; if the current working mode is the cooling mode, it is determined that the next working mode of the thermal management system is the cooling mode.
  • the second determination unit 34 in order to adjust the rotation speed of the compressor in the refrigeration mode, includes a subtraction module 341 and an adjustment module 342 .
  • the subtraction module 341 may be configured to subtract the actual temperature from the first temperature value to obtain a temperature difference corresponding to the coolant in the thermal management system.
  • the adjustment module 342 may be configured to adjust the rotation speed of the compressor in the cooling mode to a first rotation speed if the temperature difference is greater than a preset temperature difference.
  • the adjustment module 342 may also be configured to adjust the rotation speed of the compressor in the cooling mode to a second rotation speed if the temperature difference is less than or equal to the preset temperature difference, wherein the first The rotation speed is greater than the second rotation speed.
  • the device in order to detect whether the thermal management system fails, the device further includes: an adjustment unit 36 .
  • the second determination unit 34 may also be configured to determine that the thermal management system is faulty if it is greater than the fifth preset temperature value or less than the sixth preset temperature value, wherein the fifth preset temperature value is Set the temperature value to be greater than the sixth preset temperature value.
  • the adjusting unit 36 can be configured to adjust the working mode of the thermal management system to the standby mode based on the fault information corresponding to the fault, and send the fault information to the user terminal, so that the user can The thermal management system is serviced.
  • the embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the following steps are implemented: obtaining each A temperature value corresponding to the battery, and obtaining an actual temperature of the coolant in the thermal management system controlling the temperature of the battery; based on the temperature values corresponding to each battery, determining a target temperature value of the coolant in the thermal management system; According to the actual temperature, the target temperature value and the current working mode of the thermal management system, determine the next working mode of the thermal management system; based on the next working mode, control the temperature of the battery.
  • the embodiment of the present application also provides a physical structure diagram of a computer device, as shown in FIG. 5 , the computer device includes: a processor 41, Memory 42, and a computer program stored on the memory 42 and operable on the processor, wherein the memory 42 and the processor 41 are all set on the bus 43 and the processor 41 implements the following steps when executing the program: obtain the battery pack The temperature value corresponding to each battery in the battery, and obtain the actual temperature of the coolant in the thermal management system that controls the temperature of the battery; based on the temperature value corresponding to each battery, determine the target temperature of the coolant in the thermal management system value; according to the actual temperature, the target temperature value and the current working mode of the thermal management system, determine the next working mode of the thermal management system; control.
  • the application obtains the temperature value corresponding to each battery in the battery pack, and obtains the actual temperature of the coolant in the thermal management system that controls the temperature of the battery; and based on the temperature corresponding to each battery value, determine the target temperature value of the coolant in the thermal management system; at the same time, determine the lower temperature of the thermal management system according to the actual temperature, the target temperature value and the current working mode of the thermal management system One-step working mode; finally, based on the next-step working mode, the temperature of the battery is controlled, thereby determining the The next-step working mode of the thermal management system is finally based on the next-step working mode to control the battery temperature, which can avoid the problem of adjusting the self-circulation mode to the cooling mode when the battery temperature is slightly high, and improves the battery temperature control. It also reduces the energy consumption of the thermal management system that controls the battery temperature.
  • each module or each step of the above-mentioned application can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network composed of multiple computing devices Alternatively, they may be implemented in program code executable by a computing device so that they may be stored in a storage device to be executed by a computing device, and in some cases in an order different from that shown here
  • the steps shown or described are carried out, or they are separately fabricated into individual integrated circuit modules, or multiple modules or steps among them are fabricated into a single integrated circuit module for implementation.
  • the present application is not limited to any specific combination of hardware and software.

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Abstract

本申请公开了一种电池温度控制方法、装置、存储介质及计算机设备,涉及电池技术领域,主要在于能够提高电池温度控制的精度,降低对电池温度进行控制的热管理***的能耗。其中方法包括:获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度;基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值;根据所述实际温度、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式;基于所述下一步工作模式,对所述电池温度进行控制。本申请适用于对电池温度进行控制。

Description

电池温度控制方法、装置、存储介质及计算机设备
相关申请的交叉引用
本申请要求于2021年11月29日提交的申请号为202111431854.1,名称为“电池温度控制方法、装置、存储介质及计算机设备”的中国专利申请的优先权,其通过引用方式全部并入本文。
技术领域
本申请涉及电池技术领域,尤其是涉及一种电池温度控制方法、装置、存储介质及计算机设备。
背景技术
纯电宽体车是一种重要的矿山运输设备,电池包作为电动宽体车的动力来源,在工作时温度不宜过高,否则将会影响电池的使用寿命,严重时发生热失控,使电池失效,影响行车安全,因此,为了保障行车安全,需要调整电池热管理***的工作模式来对电池温度进行控制。
目前,通常根据电池包温度来调整热管理***的工作模式,从而实现对电池温度进行控制。然而,热管理***工作模式的调整不仅依据电池包的温度,还依据热管理***当前的工作模式,这种仅根据监测电池包温度来调整热管理***工作模式的方式,当电池的温度稍高时,会直接开启热管理***中的空调***进行制冷,但是此时不开启空调,仅依据热管理***当前的自循环模式,也能够对电池进行降温处理,因此仅根据电池包的温度,无法有效地调整热管理***的工作模式,从而导致电池温度控制的精度较低,同时若热管理***当前的工作模式为自循环模式,当电池温度稍高就将自循环模式调整为制冷模式,会增加热管理***的能耗。
发明内容
本申请提供了一种电池温度控制方法、装置、存储介质及计算机设备,主要在于能够提高电池温度控制的精度,降低对电池温度进行控制的热管理***的能耗。
根据本申请的第一个方面,提供一种电池温度控制方法,包括:
获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度值;
判断所述冷却液的实际温度值是否大于或等于第一预设实际温度值,且小于或等于第二预设实际温度值;
若所述实际温度值大于或等于所述第一预设实际温度值,且小于或等于所述第二预设实际温度值,则基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值;
根据所述实际温度值、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式;
基于所述下一步工作模式,对所述电池温度进行控制。
根据本申请的第二个方面,提供一种电池温度控制装置,包括:
获取单元,用于获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度值;
判断单元,用于判断所述冷却液的实际温度值是否大于或等于第一预设实际温度值,且小于或等于第二预设实际温度值;
第一确定单元,用于若所述实际温度值大于或等于所述第一预设实际温度值,且小于或等于所述第二预设实际温度值,则基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值;
第二确定单元,用于根据所述实际温度值、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式;
控制单元,用于基于所述下一步工作模式,对所述电池温度进行控制。
根据本申请的第三个方面,提供一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现以下步骤:
获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度值;
判断所述冷却液的实际温度值是否大于或等于第一预设实际温度值,且小于或等于第二预设实际温度值;
若所述实际温度值大于或等于所述第一预设实际温度值,且小于或等于所述第二预设实际温度值,则基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值;
根据所述实际温度值、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式;
基于所述下一步工作模式,对所述电池温度进行控制。
根据本申请的第四个方面,提供一种计算机设备,包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,所述处理器执行所述程序时实现以下步骤:
获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度值;
判断所述冷却液的实际温度值是否大于或等于第一预设实际温度值,且小于或等于第二预设实际温度值;
若所述实际温度值大于或等于所述第一预设实际温度值,且小于或等于所述第二预设实际温度值,则基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值;
根据所述实际温度值、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式;
基于所述下一步工作模式,对所述电池温度进行控制。
根据本申请提供的一种电池温度控制方法、装置、存储介质及计算机设备,与目前根据电池包温度来调整热管理***的工作模式,从而实现对电池温度进行控制的方式相比,本申请通过获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度值;并判断所述冷却液的实际温度值是否大于或等于第一预设实际温度值,且小于或等于第二预设实际温度值;之后若所述实际温度值大于或等于所述第一预设实际温度值,且小于或等于所述第二预设实际温度值,则基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值;与此同时,根据所述实际温度、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式;最终基于所述下一步工作模式,对所述电池温度进行控制,由此通过热管理***中冷却液的实际温度、目标温度和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式,最终基于所述下一步工作模式,对所述电池温度进行控制,能够避免当电池温度稍高就将自循环模式调整为制冷模 式的问题,提高了电池温度控制的精度,同时也能够降低对电池温度进行控制的热管理***的能耗。
附图说明
此处所说明的附图用来提供对本申请的进一步理解,构成本申请的一部分,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的不当限定。在附图中:
图1示出了本申请实施例提供的一种电池温度控制方法流程图;
图2示出了本申请实施例提供的另一种电池温度控制方法流程图;
图3示出了本申请实施例提供的一种电池温度控制装置的结构示意图;
图4示出了本申请实施例提供的另一种电池温度控制装置的结构示意图;
图5示出了本申请实施例提供的一种计算机设备的实体结构示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本申请。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
目前,根据电池包温度来调整热管理***的工作模式,从而实现对电池温度进行控制的方式,对导致电池温度控制的精度较低,同时若热管理***当前的工作模式为自循环模式,当电池温度稍高就将自循环模式调整为制冷模式,会增加热管理***的能耗。
为了解决上述问题,本申请实施例提供了一种电池温度控制方法,如图1所示,所述方法包括下述步骤。
获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度值。
其中,所述热管理***中包括制冷***和循环***,所述制冷***中包括压缩机,所述压缩机用来对热管理***中的冷却液进行加热处理,所述循环***的作用是促使所述冷却液在所述电池包周围循环流动,所述电池包由多个电池组成。
对于本申请实施例,为了克服现有技术中电池温度控制的精度较低,对电池温度进行控制的热管理***的能耗较大的问题,本申请实施例通过 热管理***中冷却液的实际温度、目标温度和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式,最终基于所述下一步工作模式,对所述电池温度进行控制,能够避免当电池温度稍高就将自循环模式调整为制冷模式的问题,提高了电池温度控制的精度,同时也能够降低对电池温度进行控制的热管理***的能耗。本申请实施例主要应用于对电池温度进行控制的场景,本申请实施例的执行主体为能够对电池温度进行控制的装置或者设备,具体可以设置在客户端或者服务器一侧。
具体地,为了对电池温度进行控制,首先需要获取电池包中各个电池对应的温度值,基于此,所述方法为,在电池包的各个电池上面都安装温度传感器,所述温度传感器读取的数值均显示在用户终端,安装电池包的电动车辆启动后或者为电池包进行充电的过程中,通过所述温度传感器能够测量电池包中各个电池对应的温度,将所述测量得到的各个温度值反馈至用户终端,可以获取电池包中各个电池对应的温度值,同理,在循环***中的循环管路内壁也会安装温度传感器,通过温度传感器测量的循环管路中冷却液的温度,并将所述温度发送至用户终端,可以获取对所述电池温度进行控制的热管理***中冷却液的实际温度,并判断所述实际温度值是否符合要求,若符合要求,则基于所述各个电池对应的温度值和所述冷却液的实际温度,确定所述热管理***中冷却液的目标温度,与此同时,根据所述实际温度、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式,最终基于所述下一步工作模式,对所述电池温度进行控制。
判断所述冷却液的实际温度值是否大于或等于第一预设实际温度值,且小于或等于第二预设实际温度值。
对于本申请实施例,为了保障行车安全,需要检测对电池温度进行控制的所述热管理***是否出现故障,基于此,在获取热管理***中冷却液对应的实际温度值后,需要判断所述实际温度值是否大于或等于第一预设实际温度值,同时判断所述实际温度值是否小于或等于第二预设实际温度值,若所述实际温度值大于或等于所述第一预设实际温度值,且小于或等于所述第二预设实际温度值,则说明所述热管理***正常运行,即所述冷却液的温度不能过高,同时也不能过低,冷却液的温度过高或过低都会说 明所述热管理***出现故障,在所述热管理***正常运行的情况下,则基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值,并基于所述实际温度值、所述目标温度值和所述热管理***当前的工作模式,确定所述热管理***下一步工作模式,并基于所述下一步工作模式,对所述电池温度进行控制,能够避免热管理***出现故障而不能对电池温度进行控制,从而导致电池温度过高,影响行车安全。
若所述实际温度值大于或等于所述第一预设实际温度值,且小于或等于所述第二预设实际温度值,则基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值。
对于本申请实施例,若所述实际温度值大于或等于所述第一预设实际温度值,且小于或等于所述第二预设实际温度值,则说明热管理***正常运行,此时需要根据所述温度值的大小,为所述热管理***中的冷却液设置一个目标温度值,并基于所述冷却液的实际温度、所述目标温度值和所述热管理***当前的工作模式,确定所述热管理***下一步的工作模式,最终基于所述下一步工作模式,对所述电池温度进行控制,能够避免当电池温度稍高就将自循环模式调整为制冷模式的问题,提高了电池温度控制的精度,同时也能够降低对电池温度进行控制的热管理***的能耗。
根据所述实际温度值、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式。
其中,所述热管理***当前的工作模式是待机模式或制冷模式或自循环模式,所述待机模式是热管理***中的压缩机处于关闭状态,且循环泵也处于关闭状态,所述制冷模式热管理***中的所述压缩机处于开启状态,但是所述循环泵处于关闭状态,所述自循环模式是热管理***中的所述循环泵处于开启状态,但是所述压缩机处于关闭状态。
具体地,在确定所述冷却液对应的实际温度和目标温度后,为了确定所述热管理***下一步的工作模式,还需要确定所述热管理***当前的工作模式,在电池管理***的显示屏幕中,即可获取所述热管理***当前的工作模式,此时,比较所述实际温度和所述目标温度值的大小,并根据比较结果和所述热管理***当前的工作模式,确定所述热管理***下一步的工作模式,最终基于所述下一步的工作模式,对所述电池的温度进行控制, 避免了仅根据电池温度来调整热管理***的工作模式,提高了电池温度控制的精度,同时也能够降低对电池温度进行控制的热管理***的能耗。
基于所述下一步工作模式,对所述电池温度进行控制。
对于本申请实施例,在确定所述热管理***的下一步工作模式后,将所述热管理***的工作模式调整为所述下一步工作模式,最终基于所述下一步工作模式,对所述行车过程中或者充电过程中的电池进行降温处理,避免电池温度过高影响行车安全,或者影响电池的使用寿命,同时通过热管理***中冷却液的实际温度、目标温度和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式,最终基于所述下一步工作模式,对所述电池温度进行控制,能够避免当电池温度稍高就将自循环模式调整为制冷模式的问题,提高了电池温度控制的精度,同时也能够降低对电池温度进行控制的热管理***的能耗。
根据本申请提供的一种电池温度控制方法,与目前根据电池包温度来调整热管理***的工作模式,从而实现对电池温度进行控制的方式相比,本申请通过获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度;并基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值;与此同时,根据所述实际温度、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式;最终基于所述下一步工作模式,对所述电池温度进行控制,由此通过热管理***中冷却液的实际温度、目标温度和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式,最终基于所述下一步工作模式,对所述电池温度进行控制,能够避免当电池温度稍高就将自循环模式调整为制冷模式的问题,提高了电池温度控制的精度,同时也能够降低对电池温度进行控制的热管理***的能耗。
进一步的,为了更好的说明上述对电池温度进行控制的过程,作为对上述实施例的细化和扩展,本申请实施例提供了另一种电池温度控制方法,如图2所示,所述方法包括下述步骤。
获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度值。
对于本申请实施例,车辆启动时,即电池包进入工作状态时,或者准 备为电池包进行充电时,BMS与TMS进行通讯,唤醒TMS,其中,所述BMS表示电池管理***,TMS表示热管理***,电池包高压上电后,对电池包进行温度控制的热管理***充电并进入待机模式,此时,利用温度传感器监测电池包中各个电池对应的温度值,并同时监测所述热管理***中冷却液的实际温度值,并基于所述实际温度值,判断热管理***是否出现故障,若未出现故障,则基于所述各个电池对应的温度值,确定所述各个温度值中的最大温度值和最小温度值,并基于所述最大温度值和所述最小温度值,确定冷却液的第一温度值,最终基于实际温度值值、第一温度值和热管理***当前的工作模式,确定热管理***下一步的工作模式,最终基于所述下一步工作模式,对所述电池温度进行控制。
判断所述冷却液的实际温度值是否大于或等于第一预设实际温度值,且小于或等于第二预设实际温度值。
对于本申请实施例,在获取热管理***中冷却液对应的实际温度值后,需要基于所述实际温度值,判断所述热管理***是否正常运行,具体判断方法为,判断所述冷却液的实际温度值是否大于或等于第一预设实际温度值,且小于或等于第二预设实际温度值,若所述实际温度值小于所述第一预设实际温度值,或大于所述第二预设实际温度值,则说明热管理***出现故障,基于此,所述方法包括:若所述实际温度值小于所述第一预设实际温度值,或大于所述第二预设实际温度值,则确定所述热管理***出现故障,其中,所述第二预设实际温度值大于所述第一预设实际温度值;基于所述故障对应的故障信息,将所述热管理***的工作模式调整为待机模式,并将所述故障信息发送至用户终端,以便用户基于所述故障信息对所述热管理***进行检修。
具体地,基于热管理***中冷却液的实际温度,若所述实际温度值小于所述第一预设实际温度值,或大于所述第二预设实际温度值,则说明所述热管理***不能实现对电池温度进行控制,即所述热管理***出现故障,并基于所述故障对应的故障信息,将所述热管理***的工作模式保持为待机模式,并将所述故障信息反馈至用户终端,用户终端基于所述故障信息对所述热管理***进行检修,检修完成后,再继续监测所述冷却液对应的实际温度,与此同时,若所述实际温度值大于或等于所述第一预设实际温 度值,且小于或等于所述第二预设实际温度值,则说明所述热管理***正常运行,此时再利用热管理***对所述电池温度进行控制。
若所述实际温度值大于或等于所述第一预设实际温度值,且小于或等于所述第二预设实际温度值,则基于所述各个电池对应的温度值,确定各个温度值中的最大温度值和最小温度值。
对于本申请实施例,若所述实际温度值大于或等于所述第一预设实际温度值,且小于或等于所述第二预设实际温度值,说明热管理***工作正常,则继续利用所述热管理***对所述电池温度进行控制,因为电池包中包含多个电池,各个电池对应的温度可能会不同,因此需要确定各个温度值中的最大温度值和最小温度值,通过温度传感器,可以测得各个电池对应的温度值,并在各个温度值中确定最大温度值和最小温度值,在确定最大温度值和最小温度值后,为了有效地对电池温度进行控制,并且减少热管理***工作的能耗,所述方法还包括:判断所述最大温度值是否小于所述第二预设温度值,且所述最小温度值是否小于第三预设温度值,其中所述第二预设温度值大于所述第三预设温度值;若所述最大温度值小于所述第二预设温度值,且所述最小温度值小于所述第三预设温度值,则确定所述热管理***的下一步工作模式为待机模式。
具体地,将所述最大温度值与第二预设温度值进行比较,同时将所述最小温度值与第三预设温度值进行比较,若所述最大温度值小于所述第二预设温度值,且所述最小温度值小于所述第三预设温度值,则说明此时电池包的温度在合理范围内,不需要再对所述电池进行降温处理,所以确定所述热管理***的下一步工作模式为待机模式,即所述热管理***中的压缩机处于关闭状态,且循环泵也处于关闭状态。
若所述最大温度值大于第一预设温度值,且所述最小温度值大于第二预设温度值,则确定所述热管理***中冷却液的目标温度值为第一温度值,其中,所述第一预设温度值大于所述第二预设温度值。
对于本申请实施例,在确定各个温度值中的最大温度值和最小温度值后,为了确定热管理***中冷却液对应目标温度值,需要判断所述最大温度值是否大于第一预设温度值,同时判断所述最小温度值是否大于第二预设温度值,若所述最大温度值大于第一预设温度值,且所述最小温度值大 于第二预设温度值,则将所述热管理***中冷却液的目标温度值设置为第一温度值,并根据所述实际温度、所述第一温度值和所述热管理***当前的工作模式,确定所述热管理***下一步的工作模式,最终基于所述下一步的工作模式,对所述电池温度进行调整。
根据所述实际温度、所述第一温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式。
对于本申请实施例,在确定冷却液对应的实际温度和第一温度值,以及所述热管理***当前的工作模式后,需要基于所述实际温度和所述第一温度值,以及所述热管理***当前的工作模式,确定所述热管理***下一步的工作模式,基于此,步骤205具体包括:若所述实际温度大于或等于所述第一温度值,则确定所述热管理***的下一步工作模式为制冷模式;若所述实际温度小于或等于第四预设温度值,则确定所述热管理***的下一步工作模式为自循环模式;若所述实际温度大于所述第四预设温度值,且小于所述第一温度值,则基于所述当前工作模式,确定所述热管理***的下一步工作模式。
具体地,判断所述实际温度是否大于或等于所述第一温度值,若所述实际温度大于或等于所述第一温度值,则确定对电池包进行降温后流出电池包的冷暖液的温度较高,即电池包的温度较高,则需要对电池快速进行降温处理,此时需要对所述冷却液进行降温处理,所以确定所述热管理***的下一步工作模式为制冷模式,即开启压缩机对冷却液进行制冷,并同时开启循环泵,利用循环泵在电池包周围循环所述冷却液,以达到对所述电池进行降温的目的,在制冷模式过程中,为了有效对电池进行降温处理,需要调整压缩机的转速,基于此,所述方法包括:将所述实际温度与所述第一温度值相减,得到所述热管理***中冷却液对应的温度差值;若所述温度差值大于预设温度差值,则将所述制冷模式中压缩机的转速调整为第一转速;若所述温度差值小于或等于所述预设温度差值,则将所述制冷模式中压缩机的转速调整为第二转速,其中,所述第一转速大于所述第二转速。
具体地,在制冷模式下,将所述实际温度与所述第一温度值相减,得到所述热管理***中冷却液对应的温度差值,若所述温度差值大于预设温 度差值,则说明冷却液的温度较高,即电池的温度较高,此时需要快速对电池进行降温处理,所以需要增大压缩机的转速,即将所述压缩机的转速调整为第一转速,实现对电池进行快速降温,若所述温度差值小于或等于所述预设温度差值,则此时压缩机较小的转速即可实现对电池的降温处理,为了减少压缩机的能量消耗,需要将所述制冷模式中压缩机的转速调整为第二转速。
进一步地,若所述实际温度小于或等于第四预设温度值,则确定所述电池包的温度良好,处于安全状态,为了节约热管理***的能耗,此时仅开启循环泵,即可达到对电池温度进行控制的目的,所以确定所述热管理***的下一步工作模式为自循环模式,即循环泵处于开启状态,但是压缩机处于关闭状态。
进一步地,若所述实际温度大于所述第四预设温度值,且小于所述第一温度值,此时,为了节约热管理***的能耗,需要基于热管理***当前的工作模式,确定热管理***下一步的工作模式,基于此,所述方法包括:若所述当前工作模式为待机模式或自循环模式,则确定所述热管理***的下一步工作模式为自循环模式;若所述当前工作模式为制冷模式,则确定所述热管理***的下一步工作模式为制冷模式。
具体地,若所述实际温度大于所述第四预设温度值,且小于所述第一温度值,则确定所述热管理***当前的工作模式,若所述当前的工作模式为待机模式或自循环模式,则基于自循环模式,也能够实现对电池进行降温处理,则确定所述热管理***的下一步工作模式为自循环模式,若所述当前的工作模式为制冷模式,为了避免不断切换工作模式导致能量的耗费,则确定所述热管理***的下一步工作模式仍为制冷模式。
基于所述下一步工作模式,对所述电池温度进行控制。
对于本申请实施例,在确定热管理***下一步的工作模式后,若所述下一步工作模式为自循环模式,则基于所述自循环模式,对所述电池温度进行控制,若所述下一步工作模式为制冷模式,则基于所述制冷模式,对所述电池温度进行控制。
根据本申请提供的另一种电池温度控制方法,与目前根据电池包温度来调整热管理***的工作模式,从而实现对电池温度进行控制的方式相比, 本申请通过获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度;并基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值;与此同时,根据所述实际温度、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式;最终基于所述下一步工作模式,对所述电池温度进行控制,由此通过热管理***中冷却液的实际温度、目标温度和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式,最终基于所述下一步工作模式,对所述电池温度进行控制,能够避免当电池温度稍高就将自循环模式调整为制冷模式的问题,提高了电池温度控制的精度,同时也能够降低对电池温度进行控制的热管理***的能耗。
进一步地,作为图1的具体实现,本申请实施例提供了一种电池温度控制装置,如图3所示,所述装置包括:获取单元31、判断单元32、第一确定单元33、第二确定单元34和控制单元35。
所述获取单元31,可以用于获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度值。
所述判断单元32,可以用于判断所述冷却液的实际温度值是否大于或等于第一预设实际温度值,且小于或等于第二预设实际温度值。
所述第一确定单元33,可以用于若所述实际温度值大于或等于所述第一预设实际温度值,且小于或等于所述第二预设实际温度值,则基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值。
所述第二确定单元34,可以用于根据所述实际温度值、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式。
所述控制单元35,可以用于基于所述下一步工作模式,对所述电池温度进行控制。
在具体应用场景中,为了确定所述热管理***中冷却液的目标温度值,如图4所示,所述第一确定单元33具体可以用于基于所述各个电池对应的温度值,确定各个温度值中的最大温度值和最小温度值;若所述最大温度值大于第一预设温度值,且所述最小温度值大于第二预设温度值,则确定所述热管理***中冷却液的目标温度值为第一温度值,其中,所述第一 预设温度值大于所述第二预设温度值。
在具体应用场景中,为了确定所述热管理***的工作模式,所述第一确定单元33具体还可以用于判断所述最大温度值是否小于所述第二预设温度值,且所述最小温度值是否小于第三预设温度值,其中所述第二预设温度值大于所述第三预设温度值;若所述最大温度值小于所述第二预设温度值,且所述最小温度值小于所述第三预设温度值,则确定所述热管理***的下一步工作模式为待机模式。
在具体应用场景中,为了确定所述热管理***的下一步工作模式,所述第二确定单元34具体可以用于若所述实际温度大于或等于所述第一温度值,则确定所述热管理***的下一步工作模式为制冷模式;若所述实际温度小于或等于第四预设温度值,则确定所述热管理***的下一步工作模式为自循环模式;若所述实际温度大于所述第四预设温度值,且小于所述第一温度值,则基于所述当前工作模式,确定所述热管理***的下一步工作模式。
在具体应用场景中,为了基于所述当前工作模式,确定所述热管理***的下一步工作模式,所述第二确定单元34具体还可以用于若所述当前工作模式为待机模式或自循环模式,则确定所述热管理***的下一步工作模式为自循环模式;若所述当前工作模式为制冷模式,则确定所述热管理***的下一步工作模式为制冷模式。
在具体应用场景中,为了对所述制冷模式中的压缩机的转速进行调解,所述第二确定单元34,包括相减模块341和调整模块342。
所述相减模块341,可以用于将所述实际温度与所述第一温度值相减,得到所述热管理***中冷却液对应的温度差值。
所述调整模块342,可以用于若所述温度差值大于预设温度差值,则将所述制冷模式中压缩机的转速调整为第一转速。
所述调整模块342,还可以用于若所述温度差值小于或等于所述预设温度差值,则将所述制冷模式中压缩机的转速调整为第二转速,其中,所述第一转速大于所述第二转速。
在具体应用场景中,为了检测所述热管理***是否出现故障,所述装置还包括:调整单元36。
所述第二确定单元34,还可以用于若大于所述第五预设温度值或小于所述第六预设温度值,则确定所述热管理***出现故障,其中,所述第五预设温度值大于所述第六预设温度值。
所述调整单元36,可以用于基于所述故障对应的故障信息,将所述热管理***的工作模式调整为待机模式,并将所述故障信息发送至用户终端,以便用户基于所述故障信息对所述热管理***进行检修。
需要说明的是,本申请实施例提供的一种电池温度控制装置所涉及各功能模块的其他相应描述,可以参考图1所示方法的对应描述,在此不再赘述。
基于上述如图1所示方法,相应的,本申请实施例还提供了一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现以下步骤:获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度;基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值;根据所述实际温度、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式;基于所述下一步工作模式,对所述电池温度进行控制。
基于上述如图1所示方法和如图3所示装置的实施例,本申请实施例还提供了一种计算机设备的实体结构图,如图5所示,该计算机设备包括:处理器41、存储器42、及存储在存储器42上并可在处理器上运行的计算机程序,其中存储器42和处理器41均设置在总线43上所述处理器41执行所述程序时实现以下步骤:获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度;基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值;根据所述实际温度、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式;基于所述下一步工作模式,对所述电池温度进行控制。
通过本申请的技术方案,本申请通过获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度;并基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值;与此同时,根据所述实际温度、所述目标温度值和所述热管 理***的当前工作模式,确定所述热管理***的下一步工作模式;最终基于所述下一步工作模式,对所述电池温度进行控制,由此通过热管理***中冷却液的实际温度、目标温度和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式,最终基于所述下一步工作模式,对所述电池温度进行控制,能够避免当电池温度稍高就将自循环模式调整为制冷模式的问题,提高了电池温度控制的精度,同时也能够降低对电池温度进行控制的热管理***的能耗。
显然,本领域的技术人员应该明白,上述的本申请的各模块或各步骤可以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,可选地,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成各个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本申请不限制于任何特定的硬件和软件结合。
以上所述仅为本申请的优选实施例而已,并不用于限制本申请,对于本领域的技术人员来说,本申请可以有各种更改和变化。凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包括在本申请的保护范围之内。

Claims (11)

  1. 一种电池温度控制方法,包括:
    获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度值;
    判断所述冷却液的实际温度值是否大于或等于第一预设实际温度值,且小于或等于第二预设实际温度值;
    若所述实际温度值大于或等于所述第一预设实际温度值,且小于或等于所述第二预设实际温度值,则基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值;
    根据所述实际温度值、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式;
    基于所述下一步工作模式,对所述电池温度进行控制。
  2. 根据权利要求1所述的方法,其中,所述基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值,包括:
    基于所述各个电池对应的温度值,确定各个温度值中的最大温度值和最小温度值;
    若所述最大温度值大于第一预设温度值,且所述最小温度值大于第二预设温度值,则确定所述热管理***中冷却液的目标温度值为第一温度值,其中,所述第一预设温度值大于所述第二预设温度值。
  3. 根据权利要求2所述方法,其中,在所述基于所述各个电池对应的温度值,确定各个温度值中的最大温度值和最小温度值之后,所述方法还包括:
    判断所述最大温度值是否小于所述第二预设温度值,且所述最小温度值是否小于第三预设温度值,其中所述第二预设温度值大于所述第三预设温度值;
    若所述最大温度值小于所述第二预设温度值,且所述最小温度值小于所述第三预设温度值,则确定所述热管理***的下一步工作模式为待机模式。
  4. 根据权利要求2所述的方法,其中,所述热管理***的工作模式包括制冷模式和自循环模式,所述根据所述实际温度值、所述目标温度 值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式,包括:
    若所述实际温度值大于或等于所述第一温度值,则确定所述热管理***的下一步工作模式为制冷模式;
    若所述实际温度值小于或等于第四预设温度值,则确定所述热管理***的下一步工作模式为自循环模式;
    若所述实际温度值大于所述第四预设温度值,且小于所述第一温度值,则基于所述当前工作模式,确定所述热管理***的下一步工作模式。
  5. 根据权利要求4所述的方法,其中,所述基于所述当前工作模式,确定所述热管理***的下一步工作模式,包括:
    若所述当前工作模式为待机模式或自循环模式,则确定所述热管理***的下一步工作模式为自循环模式;
    若所述当前工作模式为制冷模式,则确定所述热管理***的下一步工作模式为制冷模式。
  6. 根据权利要求4所述的方法,其中,在所述若所述实际温度值大于或等于所述第一温度值,则确定所述热管理***的下一步工作模式为制冷模式之后,所述方法还包括:
    将所述实际温度值与所述第一温度值相减,得到所述热管理***中冷却液对应的温度差值;
    若所述温度差值大于预设温度差值,则将所述制冷模式中压缩机的转速调整为第一转速;
    若所述温度差值小于或等于所述预设温度差值,则将所述制冷模式中压缩机的转速调整为第二转速,其中,所述第一转速大于所述第二转速。
  7. 根据权利要求1所述的方法,其中,在所述判断所述冷却液的实际温度值是否大于或等于第一预设实际温度值,且小于或等于第二预设实际温度值之后,所述方法还包括:
    若所述实际温度值小于所述第一预设实际温度值,或大于所述第二预设实际温度值,则确定所述热管理***出现故障,其中,所述第二预 设实际温度值大于所述第一预设实际温度值;
    基于所述故障对应的故障信息,将所述热管理***的工作模式调整为待机模式,并将所述故障信息发送至用户终端,以便用户基于所述故障信息对所述热管理***进行检修。
  8. 一种电池温度控制装置,包括:
    获取单元,用于获取电池包中各个电池对应的温度值,以及获取对所述电池温度进行控制的热管理***中冷却液的实际温度值;
    判断单元,用于判断所述冷却液的实际温度值是否大于或等于第一预设实际温度值,且小于或等于第二预设实际温度值;
    第一确定单元,用于若所述实际温度值大于或等于所述第一预设实际温度值,且小于或等于所述第二预设实际温度值,则基于所述各个电池对应的温度值,确定所述热管理***中冷却液的目标温度值;
    第二确定单元,用于根据所述实际温度值、所述目标温度值和所述热管理***的当前工作模式,确定所述热管理***的下一步工作模式;
    控制单元,用于基于所述下一步工作模式,对所述电池温度进行控制。
  9. 一种纯电宽体车,包括:如权利要求8所述的电池温度控制装置。
  10. 一种计算机可读存储介质,其上存储有计算机程序,其中,所述计算机程序被处理器执行时实现权利要求1至7中任一项所述的方法的步骤。
  11. 一种计算机设备,包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,其特征在于,所述计算机程序被处理器执行时实现权利要求1至7中任一项所述的方法的步骤。
PCT/CN2022/117575 2021-11-29 2022-09-07 电池温度控制方法、装置、存储介质及计算机设备 WO2023093209A1 (zh)

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