Intelligent control structure, method and equipment for passenger car thermal management and storage medium

Abstract

The invention belongs to the field of passenger car temperature control, and particularly relates to an intelligent control structure, method and equipment for passenger car heat management and a storage medium. The intelligent control structure is characterized in that a compressor is connected with a four-way valve, the four-way valve is connected with an air conditioner evaporator, a defrosting evaporator and an air conditioner condenser, and the air conditioner evaporator and the defrosting evaporator are connected with a three-way valve; the three-way valve is connected with the first throttling expansion valve, the air conditioner condenser and the second throttling expansion valve are connected with the first throttling expansion valve, the second throttling expansion valve is connected with the plate heat exchanger, the battery and the water pump are connected with the plate heat exchanger, and the air conditioner evaporator is used for adjusting the area temperature of a passenger area. The defrosting evaporator is used for adjusting the area temperature of the driving area, and the plate heat exchanger and the water pump are used for adjusting the area temperature of the battery area. The system has the effects that one compressor serves as a heat source, the area temperatures of different areas in the passenger car are automatically adjusted, and the comfort of the passenger car is improved.

Description

Technical Field

[0001] This invention belongs to the field of bus temperature control, specifically relating to a smart control structure, method, device and storage medium for bus thermal management. Background Technology

[0002] Bus thermal management refers to the effective design and control methods used during bus operation and use to monitor and regulate the internal and external temperatures of the bus to ensure passenger and driver comfort, efficient system operation, and vehicle safety. The intelligent bus thermal management control system consists of a battery thermal management system, cabin air conditioning, in-vehicle heating system, and defroster.

[0003] In related technologies, bus thermal management mainly involves the driver controlling the operating mode of the cabin air conditioning through the air conditioning panel. The in-vehicle heating system and defroster are equipped with different operating panels for the driver to control, so as to achieve control of the temperature of the whole vehicle.

[0004] Regarding the aforementioned technologies, it is impossible to achieve precise temperature control in different areas of the bus through manual driver control, thus failing to meet the comfort requirements of the bus. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a smart control structure, method, device and storage medium for thermal management of buses, which can realize the thermal management of the whole vehicle by using a single compressor, and at the same time, realize independent thermal management of different areas by adopting the temperature of different areas.

[0006] A smart control structure for thermal management of a passenger bus, comprising:

[0007] Compressor, four-way valve, air conditioner evaporator, defrost evaporator, three-way valve, first throttling expansion valve, second throttling expansion valve, plate heat exchanger, and air conditioner condenser;

[0008] The compressor is connected to the four-way valve, the four-way valve is connected to the air conditioner evaporator, the defrost evaporator and the air conditioner condenser respectively, the air conditioner evaporator and the defrost evaporator are connected to the three-way valve respectively, the three-way valve is connected to the first throttling expansion valve, the air conditioner condenser and the second throttling expansion valve are connected to the first throttling expansion valve respectively, the second throttling expansion valve is connected to the plate heat exchanger, and the battery and the water pump are connected to the plate heat exchanger respectively.

[0009] The air conditioning evaporator is used to regulate the temperature of the passenger area, the defrosting evaporator is used to regulate the temperature of the driver area, and the plate heat exchanger and water pump are used to regulate the temperature of the battery area.

[0010] Optional, also includes:

[0011] PTC auxiliary heating, wherein the PTC auxiliary heating is connected to the plate heat exchanger.

[0012] A smart control structure for thermal management of a passenger bus includes:

[0013] Collect the temperature of different areas inside the bus, including the driver's area, passenger area, and battery area;

[0014] Based on the area temperature of the driving area, the area temperature of the passenger area, and the area temperature of the battery area, select the operating mode of the driving area, the operating mode of the passenger area, and the operating mode of the battery area.

[0015] Based on the operating modes of the driver's area, passenger area, and battery area, the temperature and flow direction of the working fluid flowing from the compressor to different bus areas are determined.

[0016] Optionally, selecting the operating mode of the driving area, the operating mode of the passenger area, and the operating mode of the battery area based on the area temperature of the driving area, the area temperature of the passenger area, and the area temperature of the battery area includes:

[0017] When the temperature of the battery area is greater than the preset battery temperature, the working mode of the battery area is confirmed to be cooling mode.

[0018] When the temperature in the passenger area is greater than the maximum value of the preset passenger area temperature threshold, the operating mode of the passenger area is confirmed to be cooling mode.

[0019] When the temperature of the passenger area is less than or equal to the minimum value of the preset passenger area temperature threshold, the operating mode of the passenger area is confirmed to be the heating mode.

[0020] Optional,

[0021] When the temperature of the driving area is greater than the maximum value of the preset driving area temperature threshold, the driving area is confirmed to be in cooling mode.

[0022] When the temperature of the driving area is less than or equal to the minimum value of the preset driving area temperature threshold, the driving area is confirmed to be in heating mode.

[0023] When the temperature of the driving area is within the preset driving area temperature threshold, the driving area is confirmed to be in ventilation mode.

[0024] Optionally, determining the temperature and flow direction of the working fluid flowing from the compressor to different bus areas based on the operating modes of the driving area, the passenger area, and the battery area includes:

[0025] When the operating mode of the driver's area is heating mode, the operating mode of the passenger area is heating mode, and the operating mode of the battery area is cooling mode, the high-temperature and high-pressure working fluid of the compressor flows through the four-way valve to the air conditioning evaporator and the defrost evaporator, and then interacts with the cold air in the passenger area and the driver's area respectively. After flowing into the three-way valve, it flows into the first throttling expansion valve. Part of it flows through the second throttling expansion valve into the plate heat exchanger to cool the battery area, and part of it flows into the air conditioning condenser and then into the compressor.

[0026] Optionally, determining the temperature and flow direction of the working fluid flowing from the compressor into the pipelines of different areas of the bus based on the operating modes of the driving area, the passenger area, and the battery area further includes:

[0027] When the operating mode of the driver's area is cooling mode, the operating mode of the passenger area is ventilation mode, and the operating mode of the battery area is cooling mode, the high-temperature and high-pressure working fluid of the compressor flows through the four-way valve and the air conditioning condenser in sequence. Then, part of the working fluid flows into the plate heat exchanger, and the other part flows into the throttling expansion valve and then into the air conditioning evaporator and the defrosting evaporator, respectively.

[0028] Optionally, the preset driving area temperature threshold is 19 to 25 degrees Celsius.

[0029] A terminal device includes a memory and a processor. The memory stores a computer program that can run on the processor. When the processor loads and executes the computer program, it employs a passenger vehicle thermal management intelligent control method.

[0030] A computer-readable storage medium storing a computer program, wherein when the computer program is loaded and executed by a processor, a method for intelligent control of thermal management of a passenger vehicle is employed.

[0031] The beneficial effects of this invention are:

[0032] The compressor is connected to a four-way valve, which is connected to the air conditioning evaporator, the defrost evaporator, and the air conditioning condenser. The air conditioning evaporator and the defrost evaporator are connected to a three-way valve, which is connected to a throttling expansion valve. The throttling expansion valve is connected to the air conditioning condenser and the plate heat exchanger. The plate heat exchanger is connected to the battery and the water pump. Using the compressor as a heat source, according to the temperature of different areas of the bus, the high-temperature working fluid is directly sent to different equipment for heating or cooled and then sent to the heating equipment for refrigeration by controlling the different flow directions of the heat source. This achieves temperature control of different areas of the bus and improves the automation and comfort of the bus. Attached Figure Description

[0033] Figure 1This is a diagram showing the working fluid flow direction for heating in the driver's area and passenger area, as well as battery cooling, in a smart control structure for thermal management of a bus according to the present invention.

[0034] Figure 2 This is a diagram showing the working fluid flow direction for cooling the driver's area and battery area in a smart control structure for thermal management of a passenger vehicle according to the present invention.

[0035] Figure 3 This is a diagram showing the working fluid flow direction for cooling the passenger area and battery area in a smart control structure for thermal management of a bus according to the present invention.

[0036] Figure 4 This is a diagram showing the flow of the working fluid for cooling the driver's area, passenger area, and battery area in a smart control structure for thermal management of a bus according to the present invention.

[0037] Explanation of reference numerals in the attached diagram: 1. Compressor; 2. Four-way valve; 3. Air conditioner evaporator; 4. Defrosting evaporator; 5. Three-way valve; 6. First throttling expansion valve; 7. Plate heat exchanger; 8. Air conditioner condenser; 9. Water pump; 10. PTC auxiliary heater; 11. Second throttling expansion valve. Detailed Implementation

[0038] A smart control structure for thermal management of passenger vehicles, such as Figure 1 As shown, it includes:

[0039] 1. Compressor; 2. Four-way valve; 3. Air conditioner evaporator; 4. Defrosting evaporator; 5. Three-way valve; 6. First throttling expansion valve; 11. Second throttling expansion valve; 7. Plate heat exchanger; and 8. Air conditioner condenser.

[0040] Compressor 1 is connected to four-way valve 2. Four-way valve 2 is connected to air conditioner evaporator 3, defrost evaporator 4 and air conditioner condenser 8 respectively. Air conditioner evaporator 3 and defrost evaporator 4 are connected to three-way valve 5 respectively. Three-way valve 5 is connected to first throttling expansion valve 6. Air conditioner condenser 8 and second throttling expansion valve 11 are connected to first throttling expansion valve 6 respectively. Second throttling expansion valve 11 is connected to plate heat exchanger 7. Battery and water pump 9 are connected to plate heat exchanger 7 respectively.

[0041] The air conditioning evaporator 3 is used to regulate the temperature of the passenger area, the defrosting evaporator 4 is used to regulate the temperature of the driver area, and the plate heat exchanger 7 and water pump 9 are used to regulate the temperature of the battery area.

[0042] It also includes a PTC auxiliary heater 10, which is connected to the plate heat exchanger 7.

[0043] Specifically, PCT auxiliary heating is only activated when the battery area requires heating.

[0044] Specifically, the high-temperature, high-pressure working fluid compressed by compressor 1 flows to four-way valve 2. Depending on the needs of different areas of the bus, it flows from four-way valve 2 to different equipment. Taking heating in the driver's and passenger areas and cooling in the battery area as an example, the high-temperature, high-pressure working fluid generated by compressor 1 flows into four-way valve 2, and then into the air conditioning evaporator 3 and defrost evaporator 4 to heat the driver's and passenger areas. It then flows into three-way valve 5. After passing through three-way valve 5, the high-temperature working fluid passes through the first throttling expansion valve 6 to cool it, resulting in cooled working fluid. A portion of the working fluid then passes through the second throttling expansion valve 11, flows through the plate heat exchanger 7, and returns to compressor 1 to cool the circulating water circuit in the battery area. Another portion of the working fluid flows through the air conditioning condenser 8 and then back to compressor 1 via four-way valve 2. The working fluid is a substance that transfers heat or performs work.

[0045] The battery area is also equipped with a water pump 9, which cools the heat generated in the battery area by water before it flows into the plate heat exchanger 7 for further cooling.

[0046] A method for intelligent control of thermal management in passenger vehicles includes:

[0047] S1. Collect the temperature of different areas inside the bus, including the driver's area, passenger area and battery area.

[0048] S2. Select the operating mode of the driving area, the operating mode of the passenger area, and the operating mode of the battery area based on the temperature of the driving area, the temperature of the passenger area, and the temperature of the battery area.

[0049] When the temperature of the battery area is higher than the preset battery temperature, the battery area is confirmed to be in cooling mode.

[0050] When the temperature of the battery area exceeds the maximum value of the preset battery area temperature threshold, the battery area is confirmed to be in cooling mode.

[0051] When the temperature of the battery area is less than or equal to the minimum value of the battery area temperature threshold, the battery area is confirmed to be in heating mode.

[0052] When the temperature of the battery area is within the battery area temperature threshold, the battery area is confirmed to be in ventilation mode.

[0053] Specifically, the preset battery temperature is the highest allowable battery temperature. In this embodiment, the maximum value of the battery area temperature threshold is set to 30 degrees. When the temperature is higher than 30 degrees, the battery may overheat. Therefore, it is necessary to cool the battery to reduce its temperature. The battery area is in cooling mode. In this embodiment, the minimum value of the battery area temperature threshold is set to 25 degrees. When the temperature is lower than 25 degrees, heating is activated.

[0054] When the temperature in the passenger area exceeds the maximum value of the preset passenger area temperature threshold, the operating mode of the passenger area is confirmed to be cooling mode.

[0055] When the temperature in the passenger area is less than or equal to the minimum value of the preset passenger area temperature threshold, the operating mode of the passenger area is confirmed to be heating mode.

[0056] When the temperature in the passenger area is within the passenger area temperature threshold, the operating mode of the passenger area is confirmed to be ventilation mode.

[0057] Specifically, the preset passenger area temperature threshold sets the comfortable temperature range for the passenger area. Within the preset passenger area temperature threshold, no cooling or heating is required, and ventilation mode is sufficient. If the temperature exceeds the maximum value of the passenger area temperature threshold, cooling is required, and if the temperature is below the minimum value of the passenger area temperature threshold, heating is required.

[0058] In this embodiment, the temperature threshold for the passenger area is set to 19 to 25 degrees Celsius. When the temperature is above 25 degrees Celsius, it is in cooling mode, and when it is below 19 degrees Celsius, it is in heating mode.

[0059] When the temperature in the driving area exceeds the maximum value of the preset driving area temperature threshold, the driving area is confirmed to be in cooling mode.

[0060] When the temperature in the driving area is less than or equal to the minimum value of the preset driving area temperature threshold, the driving area is confirmed to be in heating mode.

[0061] When the temperature in the driving area is within the preset driving area temperature threshold, the driving area is confirmed to be in ventilation mode.

[0062] Specifically, the operating mode determination method for the driving area and the passenger area is the same. In this embodiment, the preset temperature threshold for the driving area is set to 19 to 25 degrees Celsius.

[0063] S3. Determine the temperature and flow direction of the working fluid flowing from the compressor to different bus areas based on the working modes of the driver's area, passenger area, and battery area.

[0064] Based on the operating modes of the driver's area, passenger area, and battery area, the temperature and flow direction of the working fluid flowing from the compressor to different areas of the bus are determined, including:

[0065] When the operating mode of the driver's area is heating mode, the operating mode of the passenger area is heating mode, and the operating mode of the battery area is cooling mode, the high-temperature and high-pressure working fluid in the compressor flows through the four-way valve to the air conditioning evaporator and the defrost evaporator to exchange heat with the cold air in the passenger area and the driver's area respectively, and flows into the three-way valve. After passing through the three-way valve, the working fluid flows into the first throttling expansion valve to reduce the temperature and pressure of the working fluid.

[0066] When the battery area is in cooling mode, the second throttling expansion valve opens. Part of the working fluid flowing out from the first throttling expansion valve flows into the plate heat exchanger after passing through the second throttling expansion valve. After heat interaction with the battery circulating water circuit, it returns to the compressor. The other part of the working fluid passes through the air conditioner condenser and returns to the compressor.

[0067] When the battery area is in ventilation mode, the second throttling expansion valve is closed, and the working fluid returns to the compressor through the air conditioning condenser.

[0068] When the battery area is in heating mode, if the battery has a heating requirement, the PTC auxiliary heating will be activated to heat the battery circulation water circuit.

[0069] The circulating water circuit consists of a loop between the battery, water pump, and plate heat exchanger.

[0070] like Figure 1 As shown, when the driver's area is in heating mode, the passenger area is in heating mode, and the battery area is in cooling mode, the high-temperature, high-pressure working fluid in the compressor flows through the four-way valve to the air conditioning evaporator and the defrost evaporator, respectively, where it interacts with the cold air in the passenger and driver's areas to exchange heat. It then flows into the three-way valve, where it flows into the first throttling expansion valve to further reduce its pressure and temperature. Part of the fluid flows into the plate heat exchanger to cool the battery area, and the other part flows into the air conditioning condenser and then into the compressor. Figure 1 Medium blue indicates a low-temperature, low-pressure working fluid, red indicates a high-temperature, high-pressure working fluid, and black indicates that the working fluid does not pass through. In this case, the PTC auxiliary heater is not working. If the battery requires heating, the second throttling expansion valve is closed, and the PTC auxiliary heater is turned on to heat the liquid in the battery's circulating water circuit.

[0071] like Figure 2 As shown, when the driving area and battery area are in cooling mode and the passenger area is in ventilation mode, the compressor's working fluid flows sequentially through the four-way valve and the air conditioning condenser. A portion of the working fluid flows into the second expansion valve, where it flows into the plate heat exchanger at low temperature and low pressure to cool the battery. Another portion of the working fluid is cooled and depressurized by the first expansion valve, and then the three-way valve closes the pipe leading to the air conditioning evaporator, allowing the low-temperature working fluid to flow only into the defrost evaporator chamber to lower the air temperature in the driver's area.

[0072] like Figure 3As shown, when the driving area is in ventilation mode and the passenger area and battery area are in cooling mode, the high-temperature working fluid of the compressor flows through the four-way valve and the air conditioning condenser in sequence. Part of the working fluid flows into the second throttling expansion valve and flows into the plate heat exchanger to cool the battery in a low-temperature and low-pressure state. After the working fluid is cooled and depressurized by the first throttling expansion valve, the three-way valve closes the pipe into the defrost evaporator, so that the low-temperature working fluid only flows into the air conditioning evaporator to reduce the air temperature in the passenger area.

[0073] like Figure 4 As shown, when the passenger area, driver area, and battery area are all in cooling mode, the high-temperature working fluid of the compressor flows into the air conditioning condenser after passing through the four-way valve. Then, part of it passes through the second throttling expansion valve, and the working fluid flows into the plate heat exchanger to cool the battery in a low-temperature and low-pressure state. Another part of the working fluid flows through the first throttling expansion valve in sequence, and the working fluid flows into the defrost evaporator pipe and the air conditioning evaporator pipe respectively through the three-way valve in a low-temperature and low-pressure state to reduce the air temperature in the driver area and passenger area.

[0074] This application also discloses a terminal device, including a memory and a processor. The memory stores a computer program that can run on the processor. When the processor loads and executes the computer program, it employs a bus thermal management intelligent control method.

[0075] The terminal device can be a computer device such as a desktop computer, a laptop computer, or a cloud server. The terminal device includes, but is not limited to, a processor and a memory. For example, the terminal device may also include input / output devices, network access devices, and buses.

[0076] The processor can be a central processing unit (CPU). Of course, depending on the actual use, it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor, etc., and this application does not limit it in this regard.

[0077] The memory can be an internal storage unit of the terminal device, such as a hard disk or RAM of the terminal device, or an external storage device of the terminal device, such as a plug-in hard disk, smart memory card (SMC), secure digital card (SD), or flash memory card (FC) equipped on the terminal device. Furthermore, the memory can be a combination of internal storage units and external storage devices of the terminal device. The memory is used to store computer programs and other programs and data required by the terminal device. The memory can also be used to temporarily store data that has been output or will be output. This application does not limit this.

[0078] In this terminal device, a bus thermal management intelligent control method from the above embodiments is stored in the terminal device's memory and loaded and executed on the terminal device's processor for convenient use.

[0079] This application also discloses a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it employs a bus thermal management intelligent control method as described in the above embodiments.

[0080] The computer program can be stored in a computer-readable medium. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or certain middleware. The computer-readable medium includes any entity or device capable of carrying computer program code, recording media, USB flash drive, portable hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the computer-readable medium includes, but is not limited to, the above-mentioned components.

[0081] The above-described intelligent control method for thermal management of a passenger vehicle is stored in the computer-readable storage medium and loaded and executed on the processor to facilitate the storage and application of the method.

[0082] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0083] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A smart control structure for thermal management of a passenger bus, characterized in that, include: Compressor (1), four-way valve (2), air conditioner evaporator (3), defrost evaporator (4), three-way valve (5), first throttling expansion valve (6), second throttling expansion valve (11), plate heat exchanger (7) and air conditioner condenser (8); The compressor (1) is connected to the four-way valve (2), the four-way valve (2) is connected to the air conditioner evaporator (3), the defrost evaporator (4) and the air conditioner condenser (8) respectively, the air conditioner evaporator (3) and the defrost evaporator (4) are connected to the three-way valve (5) respectively, the three-way valve (5) is connected to the first throttling expansion valve (6), the air conditioner condenser (8) and the second throttling expansion valve (11) are connected to the first throttling expansion valve (6) respectively, the second throttling expansion valve (11) is connected to the plate heat exchanger (7), and the battery and water pump (9) are connected to the plate heat exchanger (7) respectively. The air conditioning evaporator (3) is used to regulate the temperature of the passenger area, the defrosting evaporator (4) is used to regulate the temperature of the driver area, and the plate heat exchanger (7) and water pump (9) are used to regulate the temperature of the battery area.

2. The intelligent control structure for passenger vehicle thermal management as described in claim 1, characterized in that it also... include: PTC auxiliary heating (10) is connected to a plate heat exchanger.

3. A method for intelligent control of bus thermal management applied to the intelligent control structure for bus thermal management as described in claim 1 or 2, characterized in that, include: Collect the temperature of different areas inside the bus, including the driver's area, passenger area, and battery area; Based on the area temperature of the driving area, the area temperature of the passenger area, and the area temperature of the battery area, select the operating mode of the driving area, the operating mode of the passenger area, and the operating mode of the battery area. Based on the operating modes of the driver's area, passenger area, and battery area, the temperature and flow direction of the working fluid flowing from the compressor to different bus areas are determined.

4. The intelligent control method for passenger vehicle thermal management as described in claim 3, characterized in that, The step of selecting the operating mode of the driving area, the operating mode of the passenger area, and the operating mode of the battery area based on the area temperature of the driving area, the area temperature of the passenger area, and the area temperature of the battery area includes: When the temperature of the battery area is greater than the maximum value of the preset battery area temperature threshold, the working mode of the battery area is confirmed to be cooling mode. When the temperature of the battery area is less than or equal to the minimum value of the battery area temperature threshold, the working mode of the battery area is confirmed to be the heating mode. When the temperature of the battery area is within the battery area temperature threshold, the battery area is confirmed to be in ventilation mode. When the temperature in the passenger area is greater than the maximum value of the preset passenger area temperature threshold, the operating mode of the passenger area is confirmed to be cooling mode. When the temperature of the passenger area is less than or equal to the minimum value of the preset passenger area temperature threshold, the operating mode of the passenger area is confirmed to be the heating mode. When the temperature in the passenger area is within the passenger area temperature threshold range, the operating mode of the passenger area is confirmed to be ventilation mode.

5. The intelligent control method for passenger vehicle thermal management as described in claim 4, characterized in that, When the temperature of the driving area is greater than the maximum value of the preset driving area temperature threshold, the driving area is confirmed to be in cooling mode. When the temperature of the driving area is less than or equal to the minimum value of the preset driving area temperature threshold, the driving area is confirmed to be in heating mode. When the temperature of the driving area is within the preset driving area temperature threshold, the driving area is confirmed to be in ventilation mode.

6. The intelligent control method for passenger vehicle thermal management as described in claim 4 or 5, characterized in that, The determination of the temperature and flow direction of the working fluid flowing from the compressor to different bus areas based on the operating modes of the driving area, the passenger area, and the battery area includes: When the operating mode of the driver's area is heating mode, the operating mode of the passenger area is heating mode, and the operating mode of the battery area is cooling mode, the high-temperature and high-pressure working fluid flowing out of the compressor flows through the four-way valve to the air conditioning evaporator and the defrosting evaporator, and then flows into the three-way valve. After passing through the three-way valve, the working fluid flows into the second throttling expansion valve to reduce the temperature and pressure of the working fluid. When the battery area is in cooling mode, the first throttling expansion valve opens, and part of the working fluid flowing out from the second throttling expansion valve flows into the plate heat exchanger after passing through the second throttling expansion valve, interacts with the battery circulating water circuit, and then returns to the compressor. The other part of the working fluid passes through the air conditioner condenser and then returns to the compressor. When the battery area is in ventilation mode, the second throttling expansion valve is closed, and the working fluid returns to the compressor through the air conditioning condenser. When the battery area is in heating mode, if the battery has a heating requirement, the PTC auxiliary heating will be activated to heat the battery circulation water circuit. The circulating water route consists of a loop between the battery, the water pump, and the plate heat exchanger.

7. The intelligent control method for passenger vehicle thermal management as described in claim 6, characterized in that, The method of determining the flow direction of the high-temperature, high-pressure working fluid flowing from the compressor to different bus areas based on the operating modes of the driving area, the passenger area, and the battery area also includes: When the operating mode of the driver's area is cooling mode, the operating mode of the passenger area is ventilation mode, and the operating mode of the battery area is cooling mode, the working fluid of the compressor flows through the four-way valve and the air conditioning condenser in sequence to reduce its temperature and pressure. Then, a part of the working fluid flows into the second throttling expansion valve to reduce its temperature and pressure. The low-temperature and low-pressure working fluid flows into the plate heat exchanger and the battery circulating water circuit for heat interaction. Another part flows into the first throttling expansion valve to reduce its temperature and pressure. The cooling working fluid then flows into the defrost evaporator.

8. The intelligent control method for passenger vehicle thermal management as described in claim 5, characterized in that, The preset temperature threshold for the driving area is 19 to 25 degrees Celsius.

9. A terminal device, comprising a memory and a processor, characterized in that, The memory stores a computer program that can run on a processor, and when the processor loads and executes the computer program, it employs the method described in any one of claims 3 to 8.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is loaded and executed by the processor, it employs the method described in any one of claims 3 to 8.

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