Thermal management system, control method, vehicle, and storage medium

Abstract

The present invention relates to the field of vehicle technology, and more particularly to a thermal management system, control method, vehicle, and storage medium. The thermal management system includes an evaporation system, comprising an insulated liquid storage tank, an evaporation pipe, and a heat exchange manifold. The insulated liquid storage tank stores a phase change medium, and a power battery is located in the insulated liquid storage tank. One end of the evaporation pipe is connected to the insulated liquid storage tank, and both ends of the heat exchange manifold are connected to the evaporation pipe. The heat exchange manifold is disposed on one side of the engine. A condensation system includes a condensation pipe, a condensation liquid storage tank, and a condensation circulation assembly, which are connected in sequence. The condensation pipe is connected to the other end of the evaporation pipe, and the condensation circulation assembly is connected to the insulated liquid storage tank. The heat insulation system includes a liquid storage subsystem and a heating subsystem. The present invention solves the problem that batteries are difficult to preheat or cool down during operation due to overcooling or overheating.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a heat management system, a control method, a vehicle, and a storage medium. Background Art

[0002] The most significant difference between hybrid vehicles and traditional electric vehicles is their inclusion of batteries as a partial power reserve, significantly reducing fuel consumption. As a result, hybrid vehicles are rapidly replacing traditional single-fuel vehicles in the market. With the increasing popularity of hybrid vehicles, an increasing number of models are appearing on the market. As consumer choices become more diverse and liberalized, improving vehicle fuel economy and performance has become a key focus.

[0003] The driving experience of a hybrid vehicle is closely tied to the power switching and coordination between the engine and battery pack. The distribution of these two at different speeds also categorizes hybrid vehicles into three types: mild hybrids, which shut down the engine at low speeds and activate it during acceleration; moderate hybrids, which use the electric motor at low speeds and the engine during cruising; and full hybrids, which utilize both the engine and the electric motor to propel the vehicle forward during acceleration. Therefore, with frequent switching between these two power sources, heat recovery and cooling of the power battery becomes a major challenge.

[0004] When used in cold climates, hybrid vehicles must be started at low temperatures. The low speed during startup causes the battery to consume a significant amount of its own stored energy to reach the desired operating temperature, significantly reducing vehicle efficiency and the user's travel experience in cold weather. In hot climates, the battery's internal temperature builds up over time, and the high temperatures affect the cooling performance of both the battery and the engine.

[0005] Therefore, a thermal management system, a control method, a vehicle, and a storage medium are needed to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a thermal management system, control method, vehicle and storage medium that can reduce energy consumption while solving the problem that the battery is difficult to preheat or cool down due to overcooling or overheating during operation.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] Thermal management system, including:

[0009] An evaporation system comprising an insulated liquid storage tank, an evaporation pipe, and a heat exchange manifold. The insulated liquid storage tank stores a phase change medium, the power battery is located in the insulated liquid storage tank, one end of the evaporation pipe is connected to the insulated liquid storage tank, and both ends of the heat exchange manifold are connected to the evaporation pipe. The heat exchange manifold is disposed on one side of the engine.

[0010] A condensation system comprising a condenser pipe, a condensation liquid storage tank and a condensation circulation assembly connected in sequence, wherein the condenser pipe is connected to the other end of the evaporation pipe, and the condensation circulation assembly is connected to the thermal insulation liquid storage tank;

[0011] The insulation system includes a liquid storage subsystem and a heating subsystem. The liquid storage subsystem is connected to the insulation liquid storage tank, and the phase change medium in the insulation liquid storage tank can be discharged into the liquid storage subsystem; the heating subsystem includes a cooling water circulation component and a heat exchanger that are interconnected. The cooling water circulation component is used to cool the engine, and the heat exchanger is located on one side of the condensation liquid storage tank.

[0012] Furthermore, the liquid storage subsystem includes a low-temperature storage tank, which is connected to the thermal insulation liquid storage tank through a connecting pipeline, and a first circulation pump and a first switching valve are provided on the connecting pipeline.

[0013] Furthermore, the cooling water circulation assembly includes a circulation pipeline, which is connected to the engine and the heat exchanger. A second circulation pump and a second switch valve are provided on the circulation pipeline, and the second switch valve is located at the outlet of the engine cooling water.

[0014] Furthermore, the condensation circulation component includes a condensation circulation pipeline, one end of the condensation circulation pipeline is connected to the condensation liquid storage tank, and the other end of the condensation pipe circulation pipeline is connected to the insulation liquid storage tank. A third circulation pump and a third switch valve are provided on the condensation circulation pipeline, and the third switch valve is located between the condensation liquid storage tank and the third circulation pump.

[0015] Furthermore, a fourth switch valve and a fifth switch valve are provided on the evaporation pipe, the fourth switch valve is located at the inlet of the evaporation pipe, and the fifth switch valve is located at the outlet of the evaporation pipe.

[0016] Furthermore, a temperature sensor is provided on the thermal insulation liquid storage tank, and the temperature sensor is used to detect the temperature of the phase change medium in the thermal insulation liquid storage tank.

[0017] Furthermore, the condenser is spiral-shaped.

[0018] A control method for controlling the thermal management system as described above comprises the following steps:

[0019] S1. Collect the temperature of the power battery;

[0020] S2. Determine whether the power battery temperature is within a set operating temperature range. If not, compare the temperature of the phase change medium in the thermal insulation storage tank with a set temperature value. If the temperature of the phase change medium is higher than the set temperature value, execute steps S3 and S4. If the temperature of the phase change medium is lower than the set temperature value, execute step S5.

[0021] S3, the phase change medium in the liquid storage subsystem enters the thermal insulation liquid storage tank, and the phase change medium in the thermal insulation liquid storage tank is cooled;

[0022] S4. Determine whether there is still low-temperature phase-change medium in the liquid storage subsystem. If not, connect the evaporation system to the condensation system to implement a cycle of the evaporation system and the condensation system until the temperature of the phase-change medium stored in the thermal insulation liquid storage tank reaches a set temperature value.

[0023] S5. Discharge part of the phase change medium in the thermal insulation liquid storage tank into the liquid storage subsystem, and connect it to the heat exchanger through the cooling water circulation component, so that the cooling water in the engine heats the phase change medium in the condensation liquid storage tank through the heat exchanger, and the heated phase change medium enters the thermal insulation liquid storage tank through the condensation circulation component until the temperature of the phase change medium stored in the thermal insulation liquid storage tank reaches the set temperature value.

[0024] A vehicle, comprising:

[0025] one or more processors;

[0026] a storage device for storing one or more programs;

[0027] When the one or more programs are executed by the one or more processors, the one or more processors implement the control method described above.

[0028] A storage medium stores a computer program thereon, which implements the control method described above when the program is executed by a processor.

[0029] Beneficial effects of the present invention:

[0030] The present invention provides a thermal management system comprising an evaporation system, a condensation system, and a heat preservation system. When the power battery temperature is high, the phase change medium in the heat preservation tank changes from liquid to gas, absorbing heat. The vaporized phase change medium then enters the evaporation duct and heat exchange manifold, exchanging heat with air in the engine intake area, dissipating some of the heat. This heat is then cooled by the condensation system. The cycle formed by the evaporation and condensation systems cools the power battery, rapidly reducing the power battery temperature. When the power battery temperature is low, some of the low-temperature phase change medium in the heat preservation tank is first discharged into the liquid storage subsystem. Then, heat generated by the engine stored in the heating subsystem is used to heat the phase change medium in the condensation tank via a heat exchanger. The heated phase change medium is then discharged into the heat preservation tank via a condensation circulation component to raise the power battery temperature, thereby ensuring a smooth cold start of the power battery. This arrangement reduces energy consumption while addressing the problem of batteries being difficult to preheat or cool down during operation due to overcold or overheated conditions.

[0031] The present invention provides a control method for controlling the thermal management system as described above, which can reduce energy consumption and solve the problem that the battery is difficult to preheat or cool down due to overcooling or overheating during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of a heat management system in Embodiment 1 of the present invention;

[0033] Figure 2 It is a schematic diagram of a vehicle in embodiment 3 of the present invention. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only show portions relevant to the present invention, not all of them.

[0035] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed or detachable connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention.

[0036] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] Example 1

[0038] When used in cold climates, hybrid vehicles must be started at low temperatures. The low speed during startup causes the battery to consume a significant amount of its own stored energy to reach the desired operating temperature, significantly reducing vehicle efficiency and the user's travel experience in cold weather. In hot climates, the battery's internal temperature builds up over time, and the high temperatures affect the cooling performance of both the battery and the engine.

[0039] In order to reduce energy consumption and solve the problem that the battery is difficult to preheat or cool down due to overcooling or overheating during operation, such as Figure 1 As shown, the present invention provides a heat management system. The heat management system includes an evaporation system 1, a condensation system 2 and a heat preservation system.

[0040] The evaporation system 1 includes an insulated liquid storage tank 11, an evaporation pipe 12, and a heat exchange manifold 13. The insulated liquid storage tank 11 stores a phase change medium, and the power battery 5 is located in the insulated liquid storage tank 11. One end of the evaporation pipe 12 is connected to the insulated liquid storage tank 11, and both ends of the heat exchange manifold 13 are connected to the evaporation pipe 12. The heat exchange manifold 13 is located on one side of the engine. The condensation system 2 includes a condenser pipe 21, a condensation liquid storage tank 22, and a condensation circulation assembly 23, which are connected in sequence. The condenser pipe 21 is connected to the other end of the evaporation pipe 12, and the condensation circulation assembly 23 is connected to the insulated liquid storage tank 11. The insulation system includes a liquid storage subsystem 4 and a heating subsystem 3. The liquid storage subsystem 4 is connected to the insulation liquid storage tank 11, and the phase change medium in the insulation liquid storage tank 11 can be discharged into the liquid storage subsystem 4; the heating subsystem 3 includes a cooling water circulation component and a heat exchanger 33 that are interconnected. The cooling water circulation component is used to cool the engine, and the heat exchanger 33 is located on one side of the condensation liquid storage tank 22.

[0041] When the temperature of the power battery 5 is high, the phase change medium in the thermal insulation liquid storage tank 11 changes from liquid to gas, absorbing heat. The vaporized phase change medium then enters the evaporation pipe 12 and the heat exchange manifold 13, exchanges heat with the air in the engine intake area, and dissipates some of the heat. The condensation system 2 cools the power battery 5. The circulation formed by the evaporation system 1 and the condensation system 2 cools the power battery 5, which can quickly reduce the temperature of the power battery 5. The phase change medium in the liquid storage subsystem 4 can also be discharged into the thermal insulation liquid storage tank 11 for direct cooling. When the temperature of the power battery 5 is low, some of the low-temperature phase change medium in the thermal insulation liquid storage tank 11 is first discharged into the liquid storage subsystem 4. Then, the heat generated by the engine stored in the heating subsystem 3 is used to heat the phase change medium in the condensation liquid storage tank 22 through the heat exchanger 33. The heated phase change medium is then discharged into the thermal insulation liquid storage tank 11 through the condensation circulation component 23 to raise the temperature of the power battery 5, thereby ensuring a smooth cold start of the power battery 5. The above arrangement can reduce energy consumption and solve the problem that the battery is difficult to preheat or cool down due to overcooling or overheating during operation.

[0042] Furthermore, the liquid storage subsystem 4 includes a low-temperature storage tank 41, which is connected to the insulated liquid storage tank 11 via a connecting pipeline. The connecting pipeline is provided with a first circulation pump 42 and a first switching valve 43. When it is necessary to enable the phase change medium to flow between the low-temperature storage tank 41 and the insulated liquid storage tank 11, the first switching valve 43 is opened, and the flow of the phase change medium can be achieved using the first circulation pump 42. When the phase change medium in the insulated liquid storage tank 11 is heated, the first switching valve 43 is opened, allowing a portion of the low-temperature phase change medium in the insulated liquid storage tank 11 to enter the low-temperature storage tank 41 for isolated storage. This allows the phase change medium to be heated more effectively during subsequent heat transfer with the phase change medium after being heated by the engine coolant, thereby enhancing the overall preheating efficiency.

[0043] Furthermore, the cooling water circulation assembly includes a circulation line 31, which is connected to both the engine and the heat exchanger 33. A second circulation pump 32 and a second on-off valve 34 are provided on the circulation line 31. The second on-off valve 34 is located at the outlet of the engine cooling water. During engine operation, a large amount of heat is generated. The second circulation pump 32 can be used to circulate the cooling water, thereby cooling the engine while raising the temperature of the cooling water. When the engine is not operating, the second on-off valve 34 is closed, allowing the cooling water to enter a heat-insulating state. When the condensate storage tank 22 needs to be heated, the second on-off valve 34 is opened, allowing cooling water at a certain temperature to enter the heat exchanger 33. The heat exchanger 33 exchanges heat with the condensate storage tank 22, thereby raising the temperature of the phase change medium in the condensate storage tank 22. Through the above arrangement, the heat generated by the engine operation can be fully utilized, thereby reducing the energy consumption of the power battery 5 when heating.

[0044] Furthermore, the condensing circulation assembly 23 includes a condensing circulation line 231, one end of which is in communication with the condensing liquid storage tank 22, and the other end of the condensing tube circulation line 31 is in communication with the thermal insulation liquid storage tank 11. A third circulation pump 232 and a third on-off valve 233 are provided on the condensing circulation line 231, with the third on-off valve 233 being located between the condensing liquid storage tank 22 and the third circulation pump 232. The third on-off valve 233 can be used to control the on-off of the condensing tube circulation line 31, and the third circulation pump 232 can be used to circulate the phase change medium between the condensing liquid storage tank 22 and the thermal insulation liquid storage tank 11.

[0045] Furthermore, the evaporation pipe 12 is provided with a fourth on-off valve 121 and a fifth on-off valve 122. The fourth on-off valve 121 is located at the inlet of the evaporation pipe 12, and the fifth on-off valve 122 is located at the outlet of the evaporation pipe 12. When the fourth on-off valve 121 is opened, the phase-change medium can enter the evaporation pipe 12 and the heat exchange manifold 13. When the fifth on-off valve 122 is simultaneously opened, the phase-change medium can enter the condensation system 2. The provision of the fourth on-off valve 121 and the fifth on-off valve 122 facilitates pipeline control.

[0046] Furthermore, the thermal insulation tank 11 is provided with a temperature sensor 111 for detecting the temperature of the phase change medium in the thermal insulation tank 11. The temperature sensor 111 enables real-time detection of the temperature of the phase change medium in the thermal insulation tank 11, thereby controlling the thermal management system according to actual needs to achieve heating or cooling of the power battery 5.

[0047] Furthermore, the condenser tube 21 is spiral-shaped. By designing the condenser tube 21 to be spiral-shaped, the heat exchange area with the outside air can be increased, and the condenser tube 21 is made of a material with good thermal conductivity, thereby accelerating the heat dissipation of the phase change medium.

[0048] Furthermore, the heat exchange manifold 13 is wavy in shape, which can increase the heat exchange area within a limited space, thereby accelerating the heat dissipation of the phase change medium. The heat exchange manifold 13 can be made of a material with good thermal conductivity and sealing performance.

[0049] Furthermore, the thermal insulation liquid storage tank 11 is made of thermal insulation material.

[0050] The phase change medium used in this embodiment is a substance that changes its material form while maintaining constant temperature and can provide latent heat. Existing phase change media are mostly composed of foam ketones and fatty hydrocarbon wax oils, which are roughly divided into inorganic materials and organic materials. Thermal management systems based on phase change media for cooling often have more precise and stable temperature control performance.

[0051] In this embodiment, water is selected as the engine coolant, and a phase-change medium is used to evaporate and condense at a certain temperature, thereby removing heat generated by the power battery 5 during operation. Simultaneously, a heat exchange model is established between the power battery 5 and the engine, utilizing the waste heat generated by the power battery 5 to preheat the fresh air drawn into the engine. Under the engine's thermal load, the waste heat from the engine coolant is utilized to insulate the condensate storage tank 22 and transfer heat to the power battery 5, thereby rapidly raising the temperature of the power battery 5 during startup. This solution allows the vehicle to use pre-stored waste heat to supplement the heat required by the power battery 5 to achieve optimal operating conditions during a cold start, fully utilizing the heat while significantly reducing the power battery's own energy consumption. An engine preheated using the waste heat from the power battery 5 consumes slightly less fuel than an engine preheated during self-start. Using engine heat to conduct heat to the power battery 5 during a cold start significantly reduces the energy consumed by the power battery 5 itself for heating. The phase-change medium cooling system also improves cooling efficiency compared to conventional air and water cooling systems. In the process of heat exchange, battery energy consumption and fuel consumption are reduced, and heat utilization rate is improved.

[0052] Example 2

[0053] This embodiment provides a control method for controlling the above heat management system, including the following steps:

[0054] S1, collecting the temperature of the power battery 5;

[0055] S2. Determine whether the temperature of the power battery 5 is within the set operating temperature range. If not, compare the temperature of the phase change medium in the thermal insulation storage tank 11 with the set temperature value. If the temperature of the phase change medium is higher than the set temperature value, execute steps S3 and S4. If the temperature of the phase change medium is lower than the set temperature value, execute step S5.

[0056] S3: The phase change medium in the liquid storage subsystem 4 enters the thermal insulation liquid storage tank 11, and the temperature of the phase change medium in the thermal insulation liquid storage tank 11 is reduced. The temperature of the phase change medium in the thermal insulation liquid storage tank 11 is detected in real time. If the set temperature value is reached, the first switch valve 43 is closed. If the set temperature value is not reached, the next step is performed.

[0057] S4. Determine whether there is still low-temperature phase-change medium in the liquid storage subsystem 4. If not, open the third on-off valve 233, the fourth on-off valve 121, and the fifth on-off valve 122 to connect the evaporation system 1 with the condensation system 2, thereby achieving a circulation between the evaporation system 1 and the condensation system 2 until the temperature of the phase-change medium stored in the thermal insulation liquid storage tank 11 reaches the set temperature value.

[0058] S5. Discharge part of the phase change medium of the thermal insulation liquid storage tank 11 into the liquid storage subsystem 4, then close the first switch valve 43, open the second switch valve 34 and connect it with the heat exchanger 33 through the cooling water circulation component, so that the cooling water in the engine heats the phase change medium in the condensation storage tank 22 through the heat exchanger 33, close the fourth switch valve 121, open the third switch valve 233, and allow the heated phase change medium to enter the thermal insulation liquid storage tank 11 through the condensation circulation component 23 until the temperature of the phase change medium stored in the thermal insulation liquid storage tank 11 reaches the set temperature value.

[0059] Furthermore, during a cold start of the power battery 5, step S5 is also used to heat the phase change medium in the condensate storage tank 22 using the waste heat in the engine coolant. The heated phase change medium then flows through the condensation circulation assembly 23 and enters the thermal insulation storage tank 11 until the temperature of the phase change medium stored in the thermal insulation storage tank 11 reaches the set temperature. This method allows the phase change medium to heat the power battery 5, allowing it to operate at a suitable temperature and reducing energy consumption.

[0060] Example 3

[0061] Figure 2 Schematic diagram of the structure of the vehicle in this embodiment. Figure 2 A block diagram of an exemplary vehicle 312 is shown for implementing embodiments of the present invention. Figure 2 The vehicle 312 shown is only an example and should not limit the functionality and scope of use of the embodiments of the present invention.

[0062] like Figure 2 As shown, vehicle 312 is represented as a universal terminal. Components of vehicle 312 may include, but are not limited to, a vehicle body (not shown), one or more processors 316, a storage device 328, and a bus 318 connecting various system components (including storage device 328 and processor 316).

[0063] Bus 318 represents one or more of several types of bus structures, including a storage device bus or storage device controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus architectures. Examples of these architectures include, but are not limited to, the Industry Subversive Alliance (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnect (PCI) bus.

[0064] The vehicle 312 includes a variety of computer system readable media. These media can be any available media that can be accessed by the vehicle 312, including volatile and non-volatile media, removable and non-removable media.

[0065] The storage device 328 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 330 and / or cache memory 332. The vehicle 312 may further include other removable / non-removable, volatile / non-volatile computer system storage media. For example only, the storage system 334 may be used to read and write non-removable, non-volatile magnetic media ( Figure 2 Not shown, often called a "hard drive"). Although Figure 2 Not shown, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk"), and an optical disk drive for reading and writing to a removable non-volatile optical disk, such as a Compact Disc Read-Only Memory (CD-ROM), a Digital Video Disc-Read Only Memory (DVD-ROM), or other optical media, may be provided. In these cases, each drive may be connected to bus 318 via one or more data media interfaces. Storage device 328 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of various embodiments of the present invention.

[0066] A program / utility 340 having a set (at least one) of program modules 342 may be stored, for example, in storage device 328. Such program modules 342 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may include an implementation of a network environment. Program modules 342 generally implement the functions and / or methods of the embodiments described herein.

[0067] The vehicle 312 may also communicate with one or more external devices 314 (e.g., a keyboard, a pointing terminal, a display 324, etc.), one or more terminals that enable a user to interact with the vehicle 312, and / or any terminal that enables the vehicle 312 to communicate with one or more other computing terminals (e.g., a network card, a modem, etc.). Such communication may be performed through an input / output (I / O) interface 322. Furthermore, the vehicle 312 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through a network adapter 320. Figure 2 As shown, network adapter 320 communicates with other modules of vehicle 312 via bus 318. It should be understood that, although not shown, other hardware and / or software modules may be used in conjunction with vehicle 312, including but not limited to microcode, terminal drivers, redundant processors, external disk drive arrays, Redundant Arrays of Independent Disks (RAID) systems, tape drives, and data backup storage systems.

[0068] The processor 316 executes various functional applications and data processing by running the programs stored in the storage device 328, for example, implementing a control method provided in the second embodiment of the present invention, including the following steps:

[0069] S1, collecting the temperature of the power battery 5;

[0070] S2. Determine whether the temperature of the power battery 5 is within the set operating temperature range. If not, compare the temperature of the phase change medium in the thermal insulation storage tank 11 with the set temperature value. If the temperature of the phase change medium is higher than the set temperature value, execute steps S3 and S4. If the temperature of the phase change medium is lower than the set temperature value, execute step S5.

[0071] S3: The phase change medium in the liquid storage subsystem 4 enters the thermal insulation liquid storage tank 11, and the temperature of the phase change medium in the thermal insulation liquid storage tank 11 is reduced. The temperature of the phase change medium in the thermal insulation liquid storage tank 11 is detected in real time. If the set temperature value is reached, the first switch valve 43 is closed. If the set temperature value is not reached, the next step is performed.

[0072] S4. Determine whether there is still low-temperature phase-change medium in the liquid storage subsystem 4. If not, open the third on-off valve 233, the fourth on-off valve 121, and the fifth on-off valve 122 to connect the evaporation system 1 with the condensation system 2, thereby achieving a circulation between the evaporation system 1 and the condensation system 2 until the temperature of the phase-change medium stored in the thermal insulation liquid storage tank 11 reaches the set temperature value.

[0073] S5. Discharge part of the phase change medium of the thermal insulation liquid storage tank 11 into the liquid storage subsystem 4, then close the first switch valve 43, open the second switch valve 34 and connect it with the heat exchanger 33 through the cooling water circulation component, so that the cooling water in the engine heats the phase change medium in the condensation storage tank 22 through the heat exchanger 33, close the fourth switch valve 121, open the third switch valve 233, and allow the heated phase change medium to enter the thermal insulation liquid storage tank 11 through the condensation circulation component 23 until the temperature of the phase change medium stored in the thermal insulation liquid storage tank 11 reaches the set temperature value.

[0074] Example 4

[0075] This embodiment provides a storage medium, specifically a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, a control method as provided in the second embodiment of the present invention is implemented. This control method includes the following steps:

[0076] S1, collecting the temperature of the power battery 5;

[0077] S2. Determine whether the temperature of the power battery 5 is within the set operating temperature range. If not, compare the temperature of the phase change medium in the thermal insulation storage tank 11 with the set temperature value. If the temperature of the phase change medium is higher than the set temperature value, execute steps S3 and S4. If the temperature of the phase change medium is lower than the set temperature value, execute step S5.

[0078] S3: The phase change medium in the liquid storage subsystem 4 enters the thermal insulation liquid storage tank 11, and the temperature of the phase change medium in the thermal insulation liquid storage tank 11 is reduced. The temperature of the phase change medium in the thermal insulation liquid storage tank 11 is detected in real time. If the set temperature value is reached, the first switch valve 43 is closed. If the set temperature value is not reached, the next step is performed.

[0079] S4. Determine whether there is still low-temperature phase-change medium in the liquid storage subsystem 4. If not, open the third on-off valve 233, the fourth on-off valve 121, and the fifth on-off valve 122 to connect the evaporation system 1 with the condensation system 2, thereby achieving a circulation between the evaporation system 1 and the condensation system 2 until the temperature of the phase-change medium stored in the thermal insulation liquid storage tank 11 reaches the set temperature value.

[0080] S5. Discharge part of the phase change medium of the thermal insulation liquid storage tank 11 into the liquid storage subsystem 4, then close the first switch valve 43, open the second switch valve 34 and connect it with the heat exchanger 33 through the cooling water circulation component, so that the cooling water in the engine heats the phase change medium in the condensation storage tank 22 through the heat exchanger 33, close the fourth switch valve 121, open the third switch valve 233, and allow the heated phase change medium to enter the thermal insulation liquid storage tank 11 through the condensation circulation component 23 until the temperature of the phase change medium stored in the thermal insulation liquid storage tank 11 reaches the set temperature value.

[0081] The computer storage medium of the embodiment of the present invention may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or component, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device.

[0082] A computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, which carries computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0083] Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0084] Computer program code for performing the operations of the present invention may be written in one or more programming languages, or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or terminal. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0085] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A heat management system, characterized in that include: An evaporation system (1) comprises a heat-insulating liquid storage tank (11), an evaporation pipe (12), and a heat exchange manifold (13); the heat-insulating liquid storage tank (11) stores a phase change medium; a power battery (5) is located in the heat-insulating liquid storage tank (11); one end of the evaporation pipe (12) is in communication with the heat-insulating liquid storage tank (11); both ends of the heat exchange manifold (13) are in communication with the evaporation pipe (12); and the heat exchange manifold (13) is arranged on one side of the engine; A condensation system (2) comprises a condensation pipe (21), a condensation liquid storage tank (22) and a condensation circulation assembly (23) which are connected in sequence, wherein the condensation pipe (21) is connected to the other end of the evaporation pipe (12), and the condensation circulation assembly (23) is connected to the heat-insulating liquid storage tank (11); The heat preservation system comprises a liquid storage subsystem (4) and a heating subsystem (3), wherein the liquid storage subsystem (4) is in communication with the heat preservation liquid storage tank (11), and the phase change medium in the heat preservation liquid storage tank (11) can be discharged into the liquid storage subsystem (4); the heating subsystem (3) comprises a cooling water circulation component and a heat exchanger (33) which are in communication with each other, wherein the cooling water circulation component is used to cool the engine, and the heat exchanger (33) is located on one side of the condensation liquid storage tank (22).

2. The heat management system according to claim 1, characterized in that The liquid storage subsystem (4) comprises a low-temperature storage tank (41), the low-temperature storage tank (41) being connected to the heat-insulating liquid storage tank (11) via a connecting pipeline, and a first circulation pump (42) and a first switch valve (43) being provided on the connecting pipeline.

3. The heat management system according to claim 1, wherein: The cooling water circulation assembly comprises a circulation pipeline (31), the circulation pipeline (31) is in communication with the engine and the heat exchanger (33), a second circulation pump (32) and a second switch valve (34) are provided on the circulation pipeline (31), and the second switch valve (34) is located at the outlet of the engine cooling water.

4. The heat management system according to claim 1, wherein: The condensation circulation assembly (23) includes a condensation circulation pipeline (231), one end of the condensation circulation pipeline (231) is connected to the condensation liquid storage tank (22), and the other end of the condensation circulation pipeline (231) is connected to the thermal insulation liquid storage tank (11). A third circulation pump (232) and a third switch valve (233) are provided on the condensation circulation pipeline (231), and the third switch valve (233) is located between the condensation liquid storage tank (22) and the third circulation pump (232).

5. The heat management system according to claim 1, wherein: The evaporation pipe (12) is provided with a fourth on-off valve (121) and a fifth on-off valve (122), wherein the fourth on-off valve (121) is located at the inlet of the evaporation pipe (12), and the fifth on-off valve (122) is located at the outlet of the evaporation pipe (12).

6. The heat management system according to claim 1, wherein: The thermal insulation liquid storage tank (11) is provided with a temperature sensor (111), and the temperature sensor (111) is used to detect the temperature of the phase change medium in the thermal insulation liquid storage tank (11).

7. The heat management system according to claim 1, wherein: The condenser tube (21) is spiral-shaped.

8. A control method, characterized in that The method for controlling the heat management system according to any one of claims 1 to 7 comprises the following steps: S1, collecting the temperature of the power battery (5); S2, judging whether the temperature of the power battery (5) is within the set operating temperature range, if not, comparing the temperature of the phase change medium in the heat-insulating liquid storage tank (11) with the set temperature value, if the temperature of the phase change medium is higher than the set temperature value, executing steps S3 and S4, if the temperature of the phase change medium is lower than the set temperature value, executing step S5; S3, the phase change medium in the liquid storage subsystem (4) enters the thermal insulation liquid storage tank (11), and the phase change medium in the thermal insulation liquid storage tank (11) is cooled; S4, determining whether there is still low-temperature phase change medium in the liquid storage subsystem (4); if not, connecting the evaporation system (1) with the condensation system (2) to realize the circulation of the evaporation system (1) and the condensation system (2) until the temperature of the phase change medium stored in the heat-insulating liquid storage tank (11) reaches the set temperature value; S5. Discharge part of the phase change medium in the thermal insulation liquid storage tank (11) into the liquid storage subsystem (4), and connect the cooling water circulation component with the heat exchanger (33), so that the cooling water in the engine heats the phase change medium in the condensation liquid storage tank (22) through the heat exchanger (33), and the heated phase change medium enters the thermal insulation liquid storage tank (11) through the condensation circulation component (23) until the temperature of the phase change medium stored in the thermal insulation liquid storage tank (11) reaches the set temperature value.

9. A vehicle, characterized in that The vehicle comprises: one or more processors; a storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the control method according to claim 8.

10. A storage medium having a computer program stored thereon, characterized in that When the program is executed by a processor, the control method according to claim 8 is implemented.

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