A vehicle thermal management method and apparatus

Abstract

The application provides a vehicle thermal management method and device. The method comprises the following steps: identifying a working mode of a vehicle air conditioning system; determining a mode dead zone and a valve control scheme based on the working mode; adjusting the valve control scheme based on the mode dead zone to obtain a thermal management control scheme; and controlling the vehicle air conditioning system to work based on the thermal management control scheme. It can be seen that the method and device can store excess refrigerant in the dead zone, thereby achieving the effects of reducing costs and balancing refrigerant charging amounts in different modes, and further solving the charging amount compatibility problem of the air conditioning system in different modes, so that the refrigeration and heating performance of the system is optimized.

Description

Technical Field

[0001] This application relates to the field of vehicle thermal management technology, and more specifically, to a vehicle thermal management method and apparatus. Background Technology

[0002] Currently, all automotive air conditioning systems are equipped with liquid separators and receiver-registers to balance the refrigerant charge in different modes and store excess refrigerant. In practice, it has been found that these receiver-registers add extra cost and introduce additional flow resistance, leading to a decrease in the system's cooling and heating performance. Furthermore, the refrigerant charge amounts for different modes in existing air conditioning systems may not overlap, making it difficult to select the appropriate charge amount. Additionally, the refrigerant needs to pass through different components in different modes; components where refrigerant doesn't flow can become dead zones where large amounts of refrigerant accumulate, resulting in insufficient refrigerant for that mode, thus causing performance degradation or even malfunction. Summary of the Invention

[0003] The purpose of this application is to provide a vehicle thermal management method and device that can utilize dead zones to store excess refrigerant, thereby reducing costs, balancing the refrigerant charge amount in different modes, and solving the compatibility problem of charge amount in different modes of the air conditioning system, thus optimizing the cooling and heating performance of the system.

[0004] The first aspect of this application provides a vehicle thermal management method, comprising:

[0005] Identify the operating mode of the vehicle's air conditioning system;

[0006] Based on the aforementioned operating mode, determine the mode dead zone and valve control scheme;

[0007] The valve control scheme is adjusted based on the aforementioned dead zone to obtain a thermal management control scheme.

[0008] The vehicle's air conditioning system is controlled to operate based on the aforementioned thermal management control scheme.

[0009] In the above implementation process, this method can first identify the operating mode of the vehicle's air conditioning system; then, based on the operating mode, determine the mode dead zone and valve control scheme; next, adjust the valve control scheme based on the mode dead zone to obtain a thermal management control scheme; finally, control the vehicle's air conditioning system to operate based on the thermal management control scheme. It is evident that this method can utilize the dead zone to store excess refrigerant, thereby reducing costs, balancing the refrigerant charge amount in different modes, and thus solving the compatibility problem of refrigerant charge amount in different modes of the air conditioning system, thereby optimizing the system's cooling and heating performance.

[0010] Furthermore, the operating modes of the vehicle air conditioning system include passenger compartment cooling mode, battery cooling mode, passenger compartment heating mode, passenger compartment series dehumidification mode, passenger compartment parallel dehumidification mode, and dual-cooling mode; wherein, the dual-cooling mode is a mode in which both the passenger compartment cooling mode and the battery cooling mode are activated.

[0011] Furthermore, the vehicle air conditioning system includes an in-vehicle condenser, an external condenser, an in-vehicle evaporator, a cooling temperature controller, a first valve, a second valve, a third valve, a fourth valve, and a fifth valve;

[0012] The first valve controls whether the in-vehicle condenser works, the second and third valves control whether the out-of-vehicle condenser works, the fourth valve controls whether the in-vehicle evaporator works, and the fifth valve controls whether the cooling temperature controller works.

[0013] Furthermore, when the operating mode is the passenger compartment cooling mode, the valve control scheme is that the first valve is opened and the fourth valve is opened, and the in-vehicle condenser and the cooling temperature controller are determined to be the mode dead zone;

[0014] When the operating mode is battery cooling mode, the valve control scheme is to open the first valve and the fifth valve, and to determine that the in-vehicle condenser and the in-vehicle evaporator are the dead zones of the mode;

[0015] When the operating mode is the passenger compartment heating mode, the valve control scheme is to open the third valve and the fifth valve, and to determine that the external condenser and the internal evaporator are the mode dead zones;

[0016] When the operating mode is the passenger compartment series dehumidification mode, the valve control scheme is to open the third valve and the fourth valve, and to determine that the external condenser and the cooling temperature controller are the mode dead zones;

[0017] When the operating mode is the passenger compartment parallel dehumidification mode, the valve control scheme is that the third valve opens, the fourth valve opens, and the fifth valve opens, and the external condenser is determined to be the dead zone of the mode;

[0018] When the operating mode is the dual-cooling mode, the valve control scheme is to open the first valve, open the second valve, open the fourth valve, and open the fifth valve, and to determine that the in-vehicle condenser is the dead zone of the mode.

[0019] Furthermore, the step of adjusting the valve control scheme based on the mode dead zone to obtain the thermal management control scheme includes:

[0020] Identify the dead zone valve corresponding to the dead zone of the aforementioned mode;

[0021] Determine the valve opening degree corresponding to the dead zone valve;

[0022] The valve control scheme is adjusted based on the dead zone valve and the valve opening to obtain a thermal management control scheme.

[0023] Furthermore, when the dead zone valve is the first valve, the second valve, or the third valve, the valve opening is fully open;

[0024] When the dead zone valve is the fourth valve or the fifth valve, the valve opening degree is a preset opening degree threshold.

[0025] A second aspect of this application provides a vehicle thermal management device, the vehicle thermal management device comprising:

[0026] The identification unit is used to identify the operating mode of the vehicle's air conditioning system.

[0027] The determining unit is used to determine the mode dead zone and valve control scheme based on the operating mode;

[0028] An adjustment unit is used to adjust the valve control scheme based on the mode dead zone to obtain a thermal management control scheme;

[0029] The control unit is used to control the vehicle air conditioning system to operate based on the thermal management control scheme.

[0030] In the above implementation process, the device can identify the operating mode of the vehicle's air conditioning system through the identification unit; determine the mode dead zone and valve control scheme based on the operating mode through the determination unit; adjust the valve control scheme based on the mode dead zone through the adjustment unit to obtain the thermal management control scheme; and then control the vehicle's air conditioning system to operate based on the thermal management control scheme through the control unit. It is evident that this device can utilize the dead zone to store excess refrigerant, thereby reducing costs, balancing the refrigerant charge amount in different modes, and thus solving the compatibility problem of charge amount in different modes of the air conditioning system, thereby optimizing the system's cooling and heating performance.

[0031] Furthermore, the operating modes of the vehicle air conditioning system include passenger compartment cooling mode, battery cooling mode, passenger compartment heating mode, passenger compartment series dehumidification mode, passenger compartment parallel dehumidification mode, and dual-cooling mode; wherein, the dual-cooling mode is a mode in which both the passenger compartment cooling mode and the battery cooling mode are activated.

[0032] Furthermore, the vehicle air conditioning system includes an in-vehicle condenser, an external condenser, an in-vehicle evaporator, a cooling temperature controller, a first valve, a second valve, a third valve, a fourth valve, and a fifth valve;

[0033] The first valve controls whether the in-vehicle condenser works, the second and third valves control whether the out-of-vehicle condenser works, the fourth valve controls whether the in-vehicle evaporator works, and the fifth valve controls whether the cooling temperature controller works.

[0034] Furthermore, when the operating mode is the passenger compartment cooling mode, the valve control scheme is that the first valve is opened and the fourth valve is opened, and the in-vehicle condenser and the cooling temperature controller are determined to be the mode dead zone;

[0035] When the operating mode is battery cooling mode, the valve control scheme is to open the first valve and the fifth valve, and to determine that the in-vehicle condenser and the in-vehicle evaporator are the dead zones of the mode;

[0036] When the operating mode is the passenger compartment heating mode, the valve control scheme is to open the third valve and the fifth valve, and to determine that the external condenser and the internal evaporator are the mode dead zones;

[0037] When the operating mode is the passenger compartment series dehumidification mode, the valve control scheme is to open the third valve and the fourth valve, and to determine that the external condenser and the cooling temperature controller are the mode dead zones;

[0038] When the operating mode is the passenger compartment parallel dehumidification mode, the valve control scheme is that the third valve opens, the fourth valve opens, and the fifth valve opens, and the external condenser is determined to be the dead zone of the mode;

[0039] When the operating mode is the dual-cooling mode, the valve control scheme is to open the first valve, open the second valve, open the fourth valve, and open the fifth valve, and to determine that the in-vehicle condenser is the dead zone of the mode.

[0040] Furthermore, the adjustment unit includes:

[0041] A subunit is defined to determine the dead zone valve corresponding to the dead zone of the mode.

[0042] The determining subunit is also used to determine the valve opening degree corresponding to the dead zone valve;

[0043] The adjustment subunit is used to adjust the valve control scheme based on the dead zone valve and the valve opening to obtain a thermal management control scheme.

[0044] Furthermore, when the dead zone valve is the first valve, the second valve, or the third valve, the valve opening is fully open;

[0045] When the dead zone valve is the fourth valve or the fifth valve, the valve opening degree is a preset opening degree threshold.

[0046] A third aspect of this application provides an electronic device including a memory and a processor, the memory storing a computer program and the processor running the computer program to cause the electronic device to perform the vehicle thermal management method described in any one of the first aspects of this application.

[0047] The fourth aspect of this application provides a computer-readable storage medium storing computer program instructions, which, when read and executed by a processor, perform the vehicle thermal management method described in any one of the first aspects of this application.

[0048] The beneficial effects of this application are: the method and apparatus can utilize the dead zone to store excess refrigerant, thereby reducing costs and balancing the refrigerant charge amount in different modes, thus solving the compatibility problem of charge amount in different modes of the air conditioning system and optimizing the cooling and heating performance of the system. Attached Figure Description

[0049] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 A schematic flowchart of a vehicle thermal management method provided in an embodiment of this application;

[0051] Figure 2 A schematic flowchart of another vehicle thermal management method provided in an embodiment of this application;

[0052] Figure 3 This is a schematic diagram of the structure of a vehicle thermal management device provided in an embodiment of this application;

[0053] Figure 4 This is a schematic diagram of another vehicle thermal management device provided in an embodiment of this application;

[0054] Figure 5This is a schematic diagram of the structure of a vehicle air conditioning system provided in an embodiment of this application. Detailed Implementation

[0055] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0056] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0057] Example 1

[0058] Please refer to Figure 1 , Figure 1 This embodiment provides a schematic flowchart of a vehicle thermal management method. The vehicle thermal management method includes:

[0059] S101. Identify the operating mode of the vehicle's air conditioning system.

[0060] S102. Based on the working mode, determine the mode dead zone and valve control scheme.

[0061] S103. Adjust the valve control scheme based on the mode dead zone to obtain the thermal management control scheme.

[0062] S104. Control the vehicle's air conditioning system to operate based on the thermal management control scheme.

[0063] In this embodiment, the method transforms the inherent defect of dead zones in different modes of an air conditioning system into an advantage by utilizing these dead zones to eliminate the need for liquid storage devices such as gas-liquid separators or liquid receivers in automotive air conditioning systems. This approach utilizes the dead zones where no refrigerant flows in different modes to store excess refrigerant, thereby reducing costs, balancing refrigerant charge amounts across different modes, resolving the compatibility issue of refrigerant charge amounts in different modes of the air conditioning system, and transforming the problem of refrigerant accumulation in dead zones into an optimization strategy. Furthermore, eliminating the liquid receiver reduces system flow resistance, thus optimizing the system's cooling and heating performance.

[0064] In this embodiment, the subject executing the method can be a computing device such as a computer or server, and no limitation is made in this embodiment.

[0065] In this embodiment, the subject executing the method can also be a smart device such as a smartphone or tablet, and no limitation is made in this embodiment.

[0066] As can be seen, implementing the vehicle thermal management method described in this embodiment can utilize the dead zone to store excess refrigerant, thereby reducing costs, balancing the refrigerant charge amount in different modes, and solving the compatibility problem of charge amount in different modes of the air conditioning system, thus optimizing the cooling and heating performance of the system.

[0067] Example 2

[0068] Please refer to Figure 2 , Figure 2 This embodiment provides a schematic flowchart of another vehicle thermal management method. The vehicle thermal management method includes:

[0069] S201. Identify the operating mode of the vehicle's air conditioning system.

[0070] In this embodiment, the vehicle air conditioning system includes an in-vehicle condenser, an external condenser, an in-vehicle evaporator, a cooling temperature controller (a chiller that exchanges heat with water, i.e., a machine used for cooling and controlling temperature), a first valve, a second valve, a third valve, a fourth valve, and a fifth valve.

[0071] In this embodiment, the fourth and fifth valves are electronic expansion valves, and the first, second, and third valves are electronic expansion valves or solenoid valves.

[0072] In this embodiment, the first valve is used to control whether the in-vehicle condenser works, the second and third valves are used to control whether the out-of-vehicle condenser works, the fourth valve is used to control whether the in-vehicle evaporator works, and the fifth valve is used to control whether the cooling temperature controller works.

[0073] In this embodiment, the operating modes of the vehicle air conditioning system include passenger compartment cooling mode, battery cooling mode, passenger compartment heating mode, passenger compartment series dehumidification mode, passenger compartment parallel dehumidification mode, and dual-cooling mode; wherein, the dual-cooling mode is a mode in which both passenger compartment cooling mode and battery cooling mode are turned on.

[0074] S202. Based on the working mode, determine the mode dead zone and valve control scheme.

[0075] S203. Determine the dead zone valve corresponding to the mode dead zone.

[0076] S204. Determine the valve opening degree corresponding to the dead zone valve.

[0077] In this embodiment, when the dead zone valve is the first valve, the second valve, or the third valve, the valve opening is fully open.

[0078] In this embodiment, when the dead zone valve is the fourth or fifth valve, the valve opening degree is a preset opening degree threshold.

[0079] S205. Adjust the valve control scheme based on the dead zone valve and valve opening to obtain the thermal management control scheme.

[0080] S206. Control the vehicle's air conditioning system based on the thermal management control scheme.

[0081] In this embodiment, when the operating mode is the passenger compartment cooling mode, the valve control scheme is to open the first valve and the fourth valve, and to determine that the vehicle condenser and the cooling temperature controller are the mode dead zones.

[0082] In this embodiment, when the working mode is battery cooling mode, the valve control scheme is to open the first valve and the fifth valve, and to determine the vehicle condenser and vehicle evaporator as mode dead zones.

[0083] In this embodiment, when the operating mode is the passenger compartment heating mode, the valve control scheme is to open the third valve and the fifth valve, and to determine that the external condenser and the internal evaporator are the mode dead zones.

[0084] In this embodiment, when the working mode is the passenger compartment series dehumidification mode, the valve control scheme is to open the third valve and the fourth valve, and to determine that the external condenser and the cooling temperature controller are the mode dead zone.

[0085] In this embodiment, when the working mode is the passenger compartment parallel dehumidification mode, the valve control scheme is to open the third valve, open the fourth valve, and open the fifth valve, and the external condenser is determined to be the mode dead zone.

[0086] In this embodiment, when the working mode is the dual-cooling mode, the valve control scheme is to open the first valve, open the second valve, open the fourth valve, and open the fifth valve, and the vehicle condenser is determined to be the mode dead zone.

[0087] Please refer to Figure 5 , Figure 5 A schematic diagram of the vehicle air conditioning system in a vehicle thermal management device is shown.

[0088] For example, in the passenger compartment cooling cycle mode, the refrigerant circuit of this method is: compressor → first valve → external condenser → fourth valve → internal evaporator → compressor. In this mode, the refrigerant does not flow through the internal condenser and cooling thermostat, which are dead zones. The second valve can be opened; compared to the first valve branch, the flow resistance of the second valve branch is relatively large, so the refrigerant flow velocity in the second valve branch is very small, and the refrigerant will accumulate in the internal condenser. This method can store excess refrigerant in the internal condenser. Alternatively, the fifth valve of the electronic expansion valve can be opened to a smaller degree; similarly, the relatively large flow resistance of the fourth and fifth valve branches can be used to store excess refrigerant in the cooling thermostat.

[0089] When the operating mode is battery cooling cycle, the refrigerant circuit of this method is: compressor → first valve → external condenser → fifth valve → cooling thermostat → compressor. In this mode, the refrigerant does not flow through the internal condenser and evaporator, which are dead zones. Alternatively, the second valve can be opened to store excess refrigerant in the internal condenser; or the fourth valve of the electronic expansion valve can be opened to a smaller degree to store excess refrigerant in the internal evaporator.

[0090] When the operating mode is the passenger compartment heating cycle, the refrigerant circuit of this method is: compressor → in-vehicle condenser → third valve → fifth valve → cooling thermostat → compressor. In this mode, the refrigerant does not flow through the external condenser and the in-vehicle evaporator, which are dead zones. When the ambient temperature is high, the second valve can be opened to store excess refrigerant in the external condenser; when the ambient temperature is low, the fourth valve of the electronic expansion valve is opened to a smaller degree to store excess refrigerant in the in-vehicle evaporator.

[0091] When the operating mode is the passenger compartment series dehumidification cycle, the refrigerant circuit of this method is: compressor → in-vehicle condenser → third valve → fourth valve → in-vehicle evaporator → compressor. In this mode, the refrigerant does not flow through the external condenser and cooling thermostat, which are dead zones. Alternatively, the second valve can be opened to store excess refrigerant in the external condenser; or the fifth valve of the electronic expansion valve can be opened to a smaller degree to store excess refrigerant in the cooling thermostat.

[0092] When the operating mode is the passenger compartment parallel dehumidification cycle, the refrigerant circuit of this method is: compressor → in-vehicle condenser → third valve → fourth and fifth valves → in-vehicle evaporator and cooling thermostat → compressor. In this mode, the refrigerant does not flow through the external condenser, which is a dead zone. Alternatively, the second valve can be opened to store excess refrigerant in the external condenser.

[0093] When the operating mode is a dual-cycle cycle of passenger compartment cooling and battery cooling, the refrigerant circuit of this method is: compressor → first valve → external condenser → fourth and fifth valves → internal evaporator and cooling thermostat → compressor. In this mode, the refrigerant does not flow through the internal condenser, which is a dead zone. Alternatively, the second valve can be opened to store excess refrigerant in the internal condenser.

[0094] Implementing this method eliminates the need for the liquid receiver, a feature typically found in automotive air conditioning systems, thus reducing costs. Furthermore, eliminating the liquid receiver lowers system flow resistance and improves cooling and heating performance. Dead zones in different modes can be used as refrigerant storage areas, eliminating refrigerant accumulation and transforming a previous inherent weakness into a strategic advantage. Additionally, the maximum refrigerant charge for each mode can be selected, and for modes with lower refrigerant requirements, excess refrigerant can be stored in the dead zones. Therefore, this solution addresses the compatibility issue of refrigerant charge amounts across different modes.

[0095] In this embodiment, the subject executing the method can be a computing device such as a computer or server, and no limitation is made in this embodiment.

[0096] In this embodiment, the subject executing the method can also be a smart device such as a smartphone or tablet, and no limitation is made in this embodiment.

[0097] As can be seen, implementing the vehicle thermal management method described in this embodiment can utilize the dead zone to store excess refrigerant, thereby reducing costs, balancing the refrigerant charge amount in different modes, and solving the compatibility problem of charge amount in different modes of the air conditioning system, thus optimizing the cooling and heating performance of the system.

[0098] Example 3

[0099] Please refer to Figure 3 , Figure 3 This is a schematic diagram of a vehicle thermal management device provided in this embodiment. Figure 3 As shown, the vehicle thermal management device includes:

[0100] The identification unit 310 is used to identify the operating mode of the vehicle's air conditioning system.

[0101] The determination unit 320 is used to determine the mode dead zone and valve control scheme based on the working mode;

[0102] The adjustment unit 330 is used to adjust the valve control scheme based on the mode dead zone to obtain a thermal management control scheme;

[0103] Control unit 340 is used to control the vehicle air conditioning system based on a thermal management control scheme.

[0104] In this embodiment, the explanation of the vehicle thermal management device can be referred to the description in Embodiment 1 or Embodiment 2, and will not be repeated here.

[0105] As can be seen, by implementing the vehicle thermal management device described in this embodiment, excess refrigerant can be stored in the dead zone, thereby reducing costs and balancing the refrigerant charge amount in different modes, thus solving the compatibility problem of charge amount in different modes of the air conditioning system and optimizing the cooling and heating performance of the system.

[0106] Example 4

[0107] Please refer to Figure 4 , Figure 4 This is a schematic diagram of a vehicle thermal management device provided in this embodiment. Figure 4 As shown, the vehicle thermal management device includes:

[0108] The identification unit 310 is used to identify the operating mode of the vehicle's air conditioning system.

[0109] The determination unit 320 is used to determine the mode dead zone and valve control scheme based on the working mode;

[0110] The adjustment unit 330 is used to adjust the valve control scheme based on the mode dead zone to obtain a thermal management control scheme;

[0111] Control unit 340 is used to control the vehicle air conditioning system based on a thermal management control scheme.

[0112] In this embodiment, the operating modes of the vehicle air conditioning system include passenger compartment cooling mode, battery cooling mode, passenger compartment heating mode, passenger compartment series dehumidification mode, passenger compartment parallel dehumidification mode, and dual-cooling mode; wherein, the dual-cooling mode is a mode in which both passenger compartment cooling mode and battery cooling mode are turned on.

[0113] In this embodiment, the vehicle air conditioning system includes an in-vehicle condenser, an external condenser, an in-vehicle evaporator, a cooling temperature controller, a first valve, a second valve, a third valve, a fourth valve, and a fifth valve.

[0114] The first valve controls whether the in-vehicle condenser works, the second and third valves control whether the out-of-vehicle condenser works, the fourth valve controls whether the in-vehicle evaporator works, and the fifth valve controls whether the cooling thermostat works.

[0115] In this embodiment, when the working mode is the passenger compartment cooling mode, the valve control scheme is to open the first valve and open the fourth valve, and to determine that the vehicle condenser and the cooling temperature controller are the mode dead zone.

[0116] When the operating mode is battery cooling mode, the valve control scheme is to open the first valve and the fifth valve, and to determine the vehicle condenser and vehicle evaporator as mode dead zones.

[0117] When the operating mode is the passenger compartment heating mode, the valve control scheme is to open the third valve and the fifth valve, and to determine the external condenser and the internal evaporator as the mode dead zone.

[0118] When the operating mode is the passenger compartment series dehumidification mode, the valve control scheme is to open the third valve and the fourth valve, and to determine the external condenser and cooling temperature controller as the mode dead zone.

[0119] When the operating mode is the passenger compartment parallel dehumidification mode, the valve control scheme is to open the third valve, open the fourth valve, and open the fifth valve, and to determine that the external condenser is the mode dead zone.

[0120] When the operating mode is the dual-cooling mode, the valve control scheme is to open the first valve, open the second valve, open the fourth valve, and open the fifth valve, and the vehicle condenser is determined to be the mode dead zone.

[0121] As an optional implementation, the adjustment unit 330 includes:

[0122] Determine subunit 331, used to determine the dead zone valve corresponding to the mode dead zone;

[0123] Subunit 331 is also used to determine the valve opening degree corresponding to the dead zone valve;

[0124] Adjustment subunit 332 is used to adjust the valve control scheme based on the dead zone valve and valve opening to obtain the thermal management control scheme.

[0125] In this embodiment, when the dead zone valve is the first valve, the second valve, or the third valve, the valve opening is fully open;

[0126] When the dead zone valve is the fourth or fifth valve, the valve opening degree is the preset opening degree threshold.

[0127] In this embodiment, the explanation of the vehicle thermal management device can be referred to the description in Embodiment 1 or Embodiment 2, and will not be repeated here.

[0128] As can be seen, by implementing the vehicle thermal management device described in this embodiment, excess refrigerant can be stored in the dead zone, thereby reducing costs and balancing the refrigerant charge amount in different modes, thus solving the compatibility problem of charge amount in different modes of the air conditioning system and optimizing the cooling and heating performance of the system.

[0129] This application provides an electronic device, including a memory and a processor. The memory stores a computer program, and the processor runs the computer program to enable the electronic device to perform the vehicle thermal management method in embodiment 1 or embodiment 2 of this application.

[0130] This application provides a computer-readable storage medium storing computer program instructions, which are read and executed by a processor to perform the vehicle thermal management method in embodiment 1 or embodiment 2 of this application.

[0131] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0132] In addition, the functional modules in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0133] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0134] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0135] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0136] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A vehicle thermal management method, characterized in that, The method includes: Identify the operating modes of the vehicle air conditioning system; the operating modes of the vehicle air conditioning system include passenger compartment cooling mode, battery cooling mode, passenger compartment heating mode, passenger compartment series dehumidification mode, passenger compartment parallel dehumidification mode, and dual-cooling mode; wherein, the dual-cooling mode is a mode in which both the passenger compartment cooling mode and the battery cooling mode are turned on. Based on the aforementioned operating mode, determine the mode dead zone and valve control scheme; The valve control scheme is adjusted based on the aforementioned dead zone to obtain a thermal management control scheme. The vehicle air conditioning system is controlled to operate based on the aforementioned thermal management control scheme. The vehicle air conditioning system includes an in-vehicle condenser, an external condenser, an in-vehicle evaporator, a cooling temperature controller, a first valve, a second valve, a third valve, a fourth valve, and a fifth valve. Specifically, the first valve controls whether the in-vehicle condenser operates; the second and third valves control whether the external condenser operates; the fourth valve controls whether the in-vehicle evaporator operates; and the fifth valve controls whether the cooling temperature controller operates. When the operating mode is the passenger compartment cooling mode, the valve control scheme is to open the first valve and the fourth valve, and to determine that the in-vehicle condenser and the cooling temperature controller are the mode dead zones. When the operating mode is battery cooling mode, the valve control scheme is to open the first valve and the fifth valve, and to determine that the in-vehicle condenser and the in-vehicle evaporator are the dead zones of the mode; When the operating mode is the passenger compartment heating mode, the valve control scheme is to open the third valve and the fifth valve, and to determine that the external condenser and the internal evaporator are the mode dead zones; When the operating mode is the passenger compartment series dehumidification mode, the valve control scheme is to open the third valve and the fourth valve, and to determine that the external condenser and the cooling temperature controller are the mode dead zones; When the operating mode is the passenger compartment parallel dehumidification mode, the valve control scheme is that the third valve opens, the fourth valve opens, and the fifth valve opens, and the external condenser is determined to be the dead zone of the mode; When the operating mode is the dual-cooling mode, the valve control scheme is to open the first valve, open the second valve, open the fourth valve, and open the fifth valve, and to determine that the in-vehicle condenser is the dead zone of the mode.

2. The vehicle thermal management method according to claim 1, characterized in that, The step of adjusting the valve control scheme based on the mode dead zone to obtain the thermal management control scheme includes: Identify the dead zone valve corresponding to the dead zone of the aforementioned mode; Determine the valve opening degree corresponding to the dead zone valve; The valve control scheme is adjusted based on the dead zone valve and the valve opening to obtain a thermal management control scheme.

3. The vehicle thermal management method according to claim 2, characterized in that, When the dead zone valve is the first valve, the second valve, or the third valve, the valve opening is fully open; When the dead zone valve is the fourth valve or the fifth valve, the valve opening degree is a preset opening degree threshold.

4. A vehicle thermal management device, characterized in that, The vehicle thermal management device includes: The identification unit is used to identify the operating mode of the vehicle air conditioning system; the operating modes of the vehicle air conditioning system include passenger compartment cooling mode, battery cooling mode, passenger compartment heating mode, passenger compartment series dehumidification mode, passenger compartment parallel dehumidification mode, and dual-cooling mode; wherein, the dual-cooling mode is a mode in which both the passenger compartment cooling mode and the battery cooling mode are turned on. The determining unit is used to determine the mode dead zone and valve control scheme based on the operating mode; An adjustment unit is used to adjust the valve control scheme based on the mode dead zone to obtain a thermal management control scheme; The control unit is used to control the vehicle air conditioning system to operate based on the thermal management control scheme; the vehicle air conditioning system includes an in-vehicle condenser, an out-of-vehicle condenser, an in-vehicle evaporator, a cooling temperature controller, a first valve, a second valve, a third valve, a fourth valve, and a fifth valve; wherein, the first valve is used to control whether the in-vehicle condenser operates, the second and third valves are used to control whether the out-of-vehicle condenser operates, the fourth valve is used to control whether the in-vehicle evaporator operates, and the fifth valve is used to control whether the cooling temperature controller operates; When the operating mode is the passenger compartment cooling mode, the valve control scheme is to open the first valve and the fourth valve, and to determine that the in-vehicle condenser and the cooling temperature controller are the mode dead zones. When the operating mode is battery cooling mode, the valve control scheme is to open the first valve and the fifth valve, and to determine that the in-vehicle condenser and the in-vehicle evaporator are the dead zones of the mode; When the operating mode is the passenger compartment heating mode, the valve control scheme is to open the third valve and the fifth valve, and to determine that the external condenser and the internal evaporator are the mode dead zones; When the operating mode is the passenger compartment series dehumidification mode, the valve control scheme is to open the third valve and the fourth valve, and to determine that the external condenser and the cooling temperature controller are the mode dead zones; When the operating mode is the passenger compartment parallel dehumidification mode, the valve control scheme is that the third valve opens, the fourth valve opens, and the fifth valve opens, and the external condenser is determined to be the dead zone of the mode; When the operating mode is the dual-cooling mode, the valve control scheme is to open the first valve, open the second valve, open the fourth valve, and open the fifth valve, and to determine that the in-vehicle condenser is the dead zone of the mode.

5. The vehicle thermal management device according to claim 4, characterized in that, The adjustment unit includes: A subunit is defined to determine the dead zone valve corresponding to the dead zone of the mode. The determining subunit is also used to determine the valve opening degree corresponding to the dead zone valve; The adjustment subunit is used to adjust the valve control scheme based on the dead zone valve and the valve opening to obtain a thermal management control scheme.

6. An electronic device, characterized in that, The electronic device includes a memory and a processor, the memory being used to store a computer program, and the processor running the computer program to cause the electronic device to perform the vehicle thermal management method according to any one of claims 1 to 3.

7. A readable storage medium, characterized in that, The readable storage medium stores computer program instructions, which, when read and executed by a processor, perform the vehicle thermal management method according to any one of claims 1 to 3.

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