Control methods, devices, computer equipment, and storage media for integrated refrigeration systems

Abstract

This application relates to a control method, apparatus, computer equipment, and storage medium for an integrated refrigeration system. The method includes: acquiring the current operating mode of the integrated refrigeration system; determining the target refrigerant superheat of the integrated refrigeration system based on the current operating mode; and adjusting the opening of the electronic expansion valve in the integrated refrigeration system based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system. This method ensures that the opening of the electronic expansion valve fully considers the target refrigerant superheat under the current operating mode, avoiding unreasonable adjustments to the electronic expansion valve opening due to mismatched operating modes, thereby improving the accuracy of the electronic expansion valve opening adjustment and ensuring the stable operation of the integrated refrigeration system.

Description

Technical Field

[0001] This application relates to the field of control engineering technology, and in particular to a control method, apparatus, computer equipment, and storage medium for an integrated refrigeration system. Background Technology

[0002] With the technological development of new energy vehicles, integrated refrigeration systems are often used to cool both the vehicle's cab and battery simultaneously, thereby reducing the overall energy consumption of new energy vehicles.

[0003] Currently, in the control methods of integrated refrigeration systems for new energy vehicles, refrigeration schemes are often formulated based on the refrigeration needs of the vehicle's cab or the battery, without taking into account the refrigeration needs of both. This can easily lead to a mismatch between the superheat of the refrigerant in the system and the overall refrigeration needs of the vehicle's cab and battery. Consequently, it becomes impossible to accurately adjust the opening of the electronic expansion valve, resulting in the system being unable to provide adequate cooling to the vehicle's cab and battery, as well as increased system energy loss. Summary of the Invention

[0004] Therefore, it is necessary to provide a control method, device, computer equipment, and storage medium for an integrated refrigeration system to accurately adjust the opening degree of the electronic expansion valve in the integrated refrigeration system, in order to address the aforementioned technical problems.

[0005] In a first aspect, this application provides a control method for an integrated refrigeration system, comprising:

[0006] Obtain the current operating mode of the integrated refrigeration system; the current operating mode is either a dual refrigeration mode that simultaneously refrigerates the vehicle cab and vehicle battery of the target vehicle, or a single refrigeration mode that only refrigerates the vehicle battery of the target vehicle.

[0007] Determine the target refrigerant superheat of the integrated refrigeration system based on its current operating mode.

[0008] Adjust the opening of the electronic expansion valve in the integrated refrigeration system based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system.

[0009] In one embodiment, determining the target refrigerant superheat of the integrated refrigeration system according to its operating mode includes: if the operating mode of the integrated refrigeration system is a single refrigeration mode, then a preset refrigerant superheat is used as the target refrigerant superheat; if the operating mode of the integrated refrigeration system is a dual refrigeration mode, then the target refrigerant superheat of the integrated refrigeration system is determined based on the operating data of the integrated refrigeration system.

[0010] In one embodiment, determining the target refrigerant superheat of the integrated refrigeration system based on the operating data of the integrated refrigeration system includes: determining the target inlet water temperature of the cooling water used to cool the vehicle battery based on the operating data of the integrated refrigeration system; and determining the target refrigerant superheat of the integrated refrigeration system based on the target inlet water temperature and the actual inlet water temperature of the cooling water corresponding to the vehicle battery.

[0011] In one embodiment, determining the target inlet temperature of the cooling water for cooling the vehicle battery based on the operating data of the integrated cooling system includes: obtaining the base inlet temperature of the vehicle battery; determining the target corrected temperature of the vehicle battery based on the operating data of the integrated cooling system; and determining the target inlet temperature of the vehicle battery based on the base inlet temperature and the target corrected temperature.

[0012] In one embodiment, the operating data of the integrated refrigeration system includes evaporator operating data, compressor operating data, and maximum battery cell temperature. Based on the operating data of the integrated refrigeration system, determining the target correction temperature for the vehicle battery includes: determining a base correction temperature for the vehicle battery based on the evaporator operating data; determining a first temperature correction coefficient based on the compressor operating data; and determining a second temperature correction coefficient based on the maximum battery cell temperature; using the product of the first and second temperature correction coefficients as the target temperature correction coefficient; and using the product of the base correction temperature and the target correction coefficient as the target correction temperature.

[0013] In one embodiment, determining the target water inlet temperature of the vehicle battery based on the baseline water inlet temperature and the target correction temperature includes: using the sum of the baseline water inlet temperature and the target correction temperature as the reference water inlet temperature of the vehicle battery; and using the smaller of the reference water inlet temperature and the maximum temperature of the battery cell as the target water inlet temperature of the vehicle battery.

[0014] In one embodiment, determining the target refrigerant superheat of the integrated refrigeration system based on the target inlet water temperature and the actual inlet water temperature corresponding to the vehicle battery includes: gradually adjusting the temperature of the cooling water corresponding to the vehicle battery according to the target inlet water temperature so that the actual inlet water temperature of the cooling water corresponding to the vehicle battery reaches the target inlet water temperature; and obtaining the outlet pressure and outlet temperature of the battery heat exchanger when the actual inlet water temperature reaches the target inlet water temperature; wherein the battery heat exchanger is used to exchange heat between the refrigerant of the integrated refrigeration system and the cooling water corresponding to the vehicle battery; and determining the target refrigerant superheat of the integrated refrigeration system based on the outlet pressure and outlet temperature.

[0015] Secondly, this application also provides a control device for an integrated refrigeration system, comprising:

[0016] The acquisition module is used to acquire the current operating mode of the integrated refrigeration system; the current operating mode is either a dual refrigeration mode that simultaneously refrigerates the vehicle cab and vehicle battery of the target vehicle, or a single refrigeration mode that only refrigerates the vehicle battery of the target vehicle.

[0017] The determination module is used to determine the target refrigerant superheat of the integrated refrigeration system based on the current operating mode of the integrated refrigeration system.

[0018] The adjustment module is used to adjust the opening of the electronic expansion valve in the integrated refrigeration system based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system.

[0019] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0020] Obtain the current operating mode of the integrated refrigeration system; the current operating mode is either a dual refrigeration mode that simultaneously refrigerates the vehicle cab and vehicle battery of the target vehicle, or a single refrigeration mode that only refrigerates the vehicle battery of the target vehicle.

[0021] Determine the target refrigerant superheat of the integrated refrigeration system based on its current operating mode.

[0022] Adjust the opening of the electronic expansion valve in the integrated refrigeration system based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system.

[0023] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the following steps:

[0024] Obtain the current operating mode of the integrated refrigeration system; the current operating mode is either a dual refrigeration mode that simultaneously refrigerates the vehicle cab and vehicle battery of the target vehicle, or a single refrigeration mode that only refrigerates the vehicle battery of the target vehicle.

[0025] Determine the target refrigerant superheat of the integrated refrigeration system based on its current operating mode.

[0026] Adjust the opening of the electronic expansion valve in the integrated refrigeration system based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system.

[0027] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:

[0028] Obtain the current operating mode of the integrated refrigeration system; the current operating mode is either a dual refrigeration mode that simultaneously refrigerates the vehicle cab and vehicle battery of the target vehicle, or a single refrigeration mode that only refrigerates the vehicle battery of the target vehicle.

[0029] Determine the target refrigerant superheat of the integrated refrigeration system based on its current operating mode.

[0030] Adjust the opening of the electronic expansion valve in the integrated refrigeration system based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system.

[0031] The control method, device, computer equipment, and storage medium of the aforementioned integrated refrigeration system determine the target refrigerant superheat of the integrated refrigeration system based on its current operating mode, ensuring that the determined target refrigerant superheat matches the current operating mode. Based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system, the opening of the electronic expansion valve in the integrated refrigeration system is adjusted. This ensures that the opening of the electronic expansion valve fully considers the target refrigerant superheat under the current operating mode, avoiding unreasonable adjustments to the electronic expansion valve opening due to mismatched operating modes. This improves the accuracy of the electronic expansion valve opening adjustment and ultimately ensures the stable operation of the integrated refrigeration system. Attached Figure Description

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments of the present application or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a schematic diagram of the integrated refrigeration system in one embodiment;

[0034] Figure 2 This is a flowchart illustrating the control method of an integrated refrigeration system in one embodiment;

[0035] Figure 3 This is a flowchart illustrating the steps for determining the target refrigerant superheat in one embodiment;

[0036] Figure 4 This is a flowchart illustrating the steps for determining the target inlet water temperature in one embodiment;

[0037] Figure 5 This is a flowchart illustrating the steps for determining the target refrigerant superheat in another embodiment;

[0038] Figure 6This is a flowchart illustrating the steps for adjusting the opening of the electronic expansion valve in one embodiment.

[0039] Figure 7 This is a flowchart illustrating the control method of the integrated refrigeration system in another embodiment;

[0040] Figure 8 This is a structural block diagram of the control device for an integrated refrigeration system in one embodiment;

[0041] Figure 9 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment. Detailed Implementation

[0042] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0043] The control method for the integrated refrigeration system provided in this application embodiment can be applied to, for example... Figure 1 The integrated refrigeration system shown includes a first refrigeration system 100 for cooling the vehicle's passenger compartment and a second refrigeration system 200 for cooling the vehicle's battery. Further, the first refrigeration system 100 has corresponding piping for transporting refrigerant, and the second refrigeration system 200 has corresponding piping for transporting cooling water. The refrigerant can be understood as a heat exchanger; it lowers the temperature of the cooling water by exchanging heat with it, thereby cooling the vehicle's battery.

[0044] The aforementioned first refrigeration system 100 includes a compressor 101. The discharge port of the compressor 101 is connected to the input end of the condenser 102. A first refrigerant circuit 103 and a second refrigerant circuit 104 are connected in parallel to the output end of the condenser 102. The first refrigerant circuit 103 is equipped with a solenoid valve 105 and an evaporator 106 connected to the solenoid valve. The output end of the evaporator 106 is connected to the suction end of the compressor 101 via a three-way valve 107. The second refrigerant circuit 104 is equipped with an electronic expansion valve 108. The electronic expansion valve 108 is connected to the refrigerant input end of a battery heat exchanger 109, and the refrigerant output end of the battery heat exchanger 109 is connected to the suction end of the compressor 101 via the three-way valve 107. A first temperature and pressure sensor 110 is provided at the refrigerant output end of the battery heat exchanger 109.

[0045] Among them, the electromagnetic switch valve 105 is used to control whether the refrigerant flows through the evaporator 106; the evaporator 106 is used to exchange heat between the refrigerant and the air in the vehicle cab to achieve the purpose of cooling the vehicle cab; the electronic expansion valve 108 is used to control the refrigerant flow rate and refrigerant velocity in the second refrigerant circuit 104; the battery heat exchanger 109 is used to exchange heat between the refrigerant and the cooling water; and the first temperature and pressure sensor 110 is used to obtain the outlet temperature and outlet pressure corresponding to the refrigerant output end of the battery heat exchanger.

[0046] The aforementioned second cooling system 200 includes a vehicle battery 201 and a water pump 202. A first temperature sensor 203 is provided at the coolant inlet of the vehicle battery 201. The inlet of the water pump 202 is connected to the coolant outlet of the vehicle battery 201, and the outlet of the water pump 202 is connected to the coolant inlet of the battery heat exchanger 108. The coolant outlet of the battery heat exchanger 108 is connected to the coolant inlet of the vehicle battery 201. The first temperature sensor 203 is used to obtain the actual inlet water temperature of the vehicle battery 201.

[0047] The integrated refrigeration system operates in four modes: dual refrigeration mode, vehicle battery-only refrigeration mode, vehicle cab-only refrigeration mode, and no refrigeration mode. Since the electronic expansion valve 107 is closed in both vehicle cab-only refrigeration mode and no refrigeration mode, and there is no need to control its opening, these two modes will not be described. In vehicle battery-only refrigeration mode, the solenoid valve 104 is closed, and the electronic expansion valve 107 is open. In the first integrated refrigeration system, the refrigerant flows sequentially through the compressor 101, condenser 102, electronic expansion valve 107, battery heat exchanger 108, three-way valve 106, and compressor 101. In the second integrated refrigeration system, the cooling water flows sequentially through the vehicle battery 201, water pump 202, battery heat exchanger 108, and vehicle battery 201. Furthermore, the refrigerant and cooling water exchange heat in the battery heat exchanger 108 to lower the cooling water temperature. After cooling down, the coolant flows back to the vehicle battery 201 to cool it; while the refrigerant, after absorbing heat and heating up, flows back to the compressor 101. In dual-cooling mode, both the electromagnetic switch valve 104 and the electronic expansion valve 107 are open, and the refrigerant flows from the output of the condenser 102 into the first refrigerant circuit 103 and the second refrigerant circuit 104, respectively. The refrigerant flowing through the first refrigerant circuit exchanges heat with the air in the vehicle's passenger compartment through the evaporator 105 before flowing back to the compressor 101; the refrigerant flowing through the second refrigerant circuit exchanges heat with the coolant through the battery heat exchanger 108 before flowing back to the compressor 101.

[0048] In one embodiment, such as Figure 2 As shown, a control method for an integrated refrigeration system is provided, and this method is applied to... Figure 1The integrated refrigeration system in the example is described below. In this embodiment, the method includes the following steps:

[0049] S210: Obtain the current operating mode of the integrated refrigeration system.

[0050] Optionally, the current operating mode can be a dual cooling mode that simultaneously cools the vehicle cab and the vehicle battery of the target vehicle, or a single cooling mode that only cools the vehicle battery of the target vehicle.

[0051] S220 determines the target refrigerant superheat of the integrated refrigeration system based on the current operating mode of the integrated refrigeration system.

[0052] In this context, the target refrigerant superheat of an integrated refrigeration system can be understood as the desired superheat of the refrigerant output from the refrigerant outlet of the battery heat exchanger. It should be further noted that excessively high refrigerant superheat may lead to reduced refrigeration efficiency in the integrated refrigeration system, while excessively low superheat may cause damage to the compressor due to liquid refrigerant. Therefore, determining a suitable target refrigerant superheat is crucial for the stable operation of an integrated refrigeration system.

[0053] Optionally, if the current operating mode of the integrated refrigeration system is dual refrigeration mode, the target refrigerant superheat can be determined when the integrated refrigeration system is operating in dual refrigeration mode; if the current operating mode of the integrated refrigeration system is single refrigeration mode, the target refrigerant superheat can be determined when the integrated refrigeration system is operating in single refrigeration mode, so that a suitable target refrigerant superheat can be determined under different operating modes of the integrated refrigeration system.

[0054] S230 adjusts the opening of the electronic expansion valve in the integrated refrigeration system based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system.

[0055] In this context, the actual refrigerant superheat of the integrated refrigeration system can be understood as the actual superheat of the refrigerant output from the refrigerant output terminal of the battery heat exchanger.

[0056] Optionally, the actual refrigerant superheat can be calculated based on the outlet temperature and outlet pressure at the refrigerant output terminal of the battery heat exchanger. The outlet temperature can be understood as the temperature of the refrigerant output from the refrigerant output terminal of the battery heat exchanger; the outlet pressure can be understood as the pressure of the refrigerant output from the refrigerant output terminal of the battery heat exchanger.

[0057] (1)

[0058] For example, the calculation rule for actual superheat is shown in formula (1), where Indicates the actual refrigerant superheat, Indicates refrigerant output temperature, Indicates refrigerant output pressure, For the first calculation coefficient, For the second calculation coefficient, This is the third calculation coefficient. It should be noted that the first, second, and third calculation coefficients can all be set or adjusted by technical personnel according to their needs or experience, or determined through a large number of experiments. This application does not impose any restrictions on them.

[0059] Optionally, the opening of the electronic expansion valve of the integrated refrigeration system can be adjusted based on the difference between the target refrigerant superheat and the actual refrigerant superheat.

[0060] In this embodiment, the target refrigerant superheat of the integrated refrigeration system is determined according to the current operating mode of the integrated refrigeration system, so that the determined target refrigerant superheat matches the current operating mode of the integrated refrigeration system. Based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system, the opening of the electronic expansion valve in the integrated refrigeration system is adjusted so that the opening of the electronic expansion valve can fully take into account the target refrigerant superheat under the current operating mode. This avoids the situation where the electronic expansion valve opening is not adjusted properly due to the mismatch of the operating mode, thereby improving the accuracy of the electronic expansion valve opening adjustment and ensuring the stable operation of the integrated refrigeration system.

[0061] Based on the technical solutions of the above embodiments, this application also provides an optional embodiment in which the steps for determining the target refrigerant superheat are refined.

[0062] See Figure 3 The steps for determining the target refrigerant superheat, as shown, include:

[0063] S310, if the integrated refrigeration system operates in single refrigeration mode, then the preset refrigerant superheat is used as the target refrigerant superheat.

[0064] The preset refrigerant superheat can be set or adjusted by technicians according to their needs or experience, or determined through a large number of experiments. This application does not impose any restrictions on this.

[0065] S320, if the integrated refrigeration system operates in dual refrigeration mode, then the target refrigerant superheat of the integrated refrigeration system is determined based on the operating data of the integrated refrigeration system.

[0066] Optionally, the operating data of the integrated refrigeration system can be understood as data used to evaluate the operating status of each component of the integrated refrigeration system in dual-refrigeration mode. For example, the operating data of the integrated refrigeration system may include at least one of the following: evaporator operating data, compressor operating data, and maximum battery cell temperature. Here, evaporator operating data can be understood as data used to evaluate the operating status of the evaporator; compressor operating data can be understood as data used to evaluate the operating status of the compressor; and the maximum battery cell temperature can be understood as the temperature corresponding to the hottest battery cell in the vehicle battery. It is understood that the vehicle battery can be composed of multiple battery cells.

[0067] In one optional embodiment, the target inlet temperature of the cooling water for cooling the vehicle battery can be determined based on the operating data of the integrated refrigeration system; and the target refrigerant superheat of the integrated refrigeration system can be determined based on the target inlet temperature and the actual inlet temperature of the cooling water corresponding to the vehicle battery.

[0068] The target inlet water temperature can be understood as the temperature that the coolant used to cool the vehicle battery needs to reach. It's important to note that both excessively high and low coolant temperatures can negatively impact vehicle battery performance. Therefore, determining a suitable target inlet water temperature is crucial for ensuring vehicle battery performance.

[0069] In this embodiment, a target refrigerant superheat is determined under different current operating modes of the integrated refrigeration system, so that the determined target refrigerant superheat can match the current operating mode of the integrated refrigeration system. Specifically, if the current operating mode of the integrated refrigeration system is a dual-refrigeration mode, the target refrigerant superheat is determined based on the operating data of the integrated refrigeration system, so that the target refrigerant superheat can reflect the actual superheat requirement of the integrated refrigeration system, thereby improving the accuracy and reliability of the determined target refrigerant superheat.

[0070] Based on the technical solutions of the above embodiments, this application also provides an optional embodiment in which the steps for determining the target inlet water temperature are refined.

[0071] See Figure 4 The steps for determining the target influent temperature, as shown, include:

[0072] S410, obtains the basic water ingress temperature of the vehicle battery.

[0073] The base water inlet temperature can be understood as the baseline value corresponding to the target water inlet temperature of the vehicle battery, that is, the base temperature used to determine the target water inlet temperature.

[0074] Optionally, the average temperature of each battery cell in the vehicle battery can be obtained; the base water inlet temperature is determined based on the mapping relationship between the average battery cell temperature and the base water inlet temperature. It should be noted that the mapping relationship between the average battery cell temperature and the base water inlet temperature can be set or adjusted by a technician based on needs or experience, or determined through extensive testing; this application does not impose any limitations on this. For example, if the average temperature of each battery cell is 10°C, and the corresponding base water inlet temperature is 30°C, then the base water inlet temperature of the vehicle battery is determined to be 30°C.

[0075] S420 determines the target corrected temperature of the vehicle battery based on the operating data of the integrated cooling system.

[0076] The target correction temperature can be understood as the correction temperature that corrects the base correction temperature.

[0077] In one optional embodiment, a base correction temperature for the vehicle battery can be determined based on evaporator operating data; a first temperature correction coefficient can be determined based on compressor operating data; and a second temperature correction coefficient can be determined based on the maximum temperature of a single battery cell; the product of the first temperature correction coefficient and the second temperature correction coefficient can be used as a target temperature correction coefficient; and the product of the base correction temperature and the target correction coefficient can be used as the target correction temperature.

[0078] The base correction temperature can be understood as the baseline value corresponding to the target correction temperature, i.e., the basic temperature used to determine the target correction temperature. The first temperature coefficient can be understood as the temperature coefficient corresponding to the compressor operating data. The second temperature coefficient can be understood as the temperature coefficient corresponding to the maximum temperature of the battery cell. The target temperature correction coefficient can be understood as the temperature correction coefficient corresponding to the base correction temperature.

[0079] Optionally, the evaporator operating data may include the actual evaporator temperature, etc. Furthermore, the first temperature coefficient can be determined based on the mapping relationship between the actual evaporator temperature and the first temperature coefficient. It should be noted that the mapping relationship between the actual evaporator temperature and the first temperature coefficient can be set or adjusted by technicians according to their needs or experience, or determined through extensive testing; this application does not impose any limitations on this.

[0080] Optionally, the compressor's operating data may include at least one of the following: compressor requested speed, compressor feedback speed, and compressor feedback power. Further, a first temperature coefficient may be determined based on the compressor requested speed; a second temperature coefficient may be determined based on the compressor feedback speed; and a third temperature coefficient may be determined based on the compressor feedback power. The smallest of the first, second, and third temperature coefficients may be used as the second temperature coefficient.

[0081] S430 determines the target inlet temperature of the vehicle battery based on the base inlet temperature and the target correction temperature.

[0082] In one alternative embodiment, the sum of the baseline inlet water temperature and the target corrected temperature can be used as the reference inlet water temperature of the vehicle battery; and the smaller of the reference inlet water temperature and the maximum temperature of the battery cell can be used as the target inlet water temperature of the vehicle battery.

[0083] In this embodiment, the basic inlet water temperature of the vehicle battery is obtained; the target correction temperature of the vehicle battery is determined based on the operating data of the integrated cooling system; and the target inlet water temperature of the vehicle battery is determined based on the basic inlet water temperature and the target correction temperature, so that the target inlet water temperature can match the actual cooling needs of the vehicle battery, thereby improving the accuracy and reliability of the determined target inlet water temperature.

[0084] Based on the technical solutions of the above embodiments, this application also provides an optional embodiment in which the steps for determining the target refrigerant superheat are refined.

[0085] See Figure 5 The steps for determining the target refrigerant superheat, as shown, include:

[0086] S510 gradually adjusts the temperature of the coolant corresponding to the vehicle battery based on the target inlet water temperature, so that the actual inlet water temperature of the coolant corresponding to the vehicle battery reaches the target inlet water temperature.

[0087] Optionally, the actual inlet water temperature can be controlled using a PID (Proportional-Integral-Derivative) algorithm based on the actual inlet water temperature and the target inlet water temperature. For example, a total adjustment cycle may include at least one preset adjustment cycle, within which a corresponding target inlet water temperature is determined. In the current preset adjustment cycle, the relationship between the actual and target inlet water temperatures, as well as the inlet water temperature difference between them, can be determined. If the actual inlet water temperature is greater than the target inlet water temperature, and the inlet water temperature difference is greater than a preset temperature difference threshold, then the actual inlet water temperature is reduced by a preset adjustment temperature in the current preset adjustment cycle. If the actual inlet water temperature is less than the target inlet water temperature, and the inlet water temperature difference is greater than a preset temperature difference threshold, then the actual inlet water temperature is reduced by a preset adjustment temperature in the current preset adjustment cycle. It is understandable that by executing the above method in each preset adjustment cycle, the temperature difference between the actual inlet water temperature and the target inlet water temperature will gradually decrease, thereby making the temperature difference less than the preset temperature difference threshold, which means that the actual inlet water temperature reaches the target inlet water temperature.

[0088] The total adjustment cycle can be understood as the adjustment cycle required for the actual inlet water temperature to reach the target inlet water temperature. The preset adjustment cycle can be understood as the cycle for adjusting the actual inlet water temperature. The preset temperature difference threshold can be understood as the upper limit of the inlet water temperature difference. The preset adjustment temperature can be understood as the adjustment value of the actual inlet water temperature. It should be noted that the preset adjustment cycle, preset temperature difference threshold, and preset adjustment temperature can all be set or adjusted by technical personnel according to their needs or experience, or determined through extensive testing; this application does not impose any limitations on these aspects.

[0089] S520, when the actual inlet water temperature reaches the target inlet water temperature, obtains the outlet pressure and outlet temperature of the battery heat exchanger; wherein, the battery heat exchanger is used to exchange heat between the refrigerant of the integrated refrigeration system and the cooling water corresponding to the vehicle battery.

[0090] Optionally, the outlet pressure of the battery heat exchanger can be obtained by installing a pressure sensor at the refrigerant output end of the battery heat exchanger; the outlet temperature of the battery heat exchanger can be obtained by installing a temperature sensor at the refrigerant output end of the battery heat exchanger.

[0091] S530 determines the target refrigerant superheat of the integrated refrigeration system based on the outlet pressure and outlet temperature.

[0092] Optionally, for a total adjustment cycle, the initial refrigerant superheat of the integrated refrigeration system can be determined based on the outlet pressure and outlet temperature. The target refrigerant superheat for that total adjustment cycle is determined by limiting the adjustment of the initial refrigerant superheat. Here, the initial refrigerant superheat can be understood as the preliminarily determined refrigerant superheat.

[0093] Optionally, the initial refrigerant superheat can be limited and adjusted based on a preset upper and lower superheat threshold to determine the target refrigerant superheat. For example, if the initial refrigerant superheat is greater than the preset upper superheat threshold, the preset upper superheat threshold is used as the target refrigerant superheat; if the initial refrigerant superheat is less than the preset lower superheat threshold, the preset lower superheat threshold is used as the target refrigerant superheat. It should be noted that both the preset upper and lower superheat thresholds can be set or adjusted by technicians according to their needs or experience, or determined through extensive testing; this application does not impose any limitations on this.

[0094] In this embodiment, the temperature of the cooling water corresponding to the vehicle battery is gradually adjusted according to the target inlet water temperature, enabling the actual inlet water temperature of the cooling water corresponding to the vehicle battery to reach the target inlet water temperature. Once the actual inlet water temperature reaches the target inlet water temperature, the outlet pressure and outlet temperature of the battery heat exchanger are obtained, and the target refrigerant superheat of the integrated refrigeration system is determined based on the outlet pressure and outlet temperature. This technical solution ensures that, at the determined target refrigerant superheat, both the cooling requirements of the integrated refrigeration system are met, and the stable operation of the integrated refrigeration system is guaranteed.

[0095] Based on the technical solutions of the above embodiments, this application also provides an optional embodiment in which the adjustment steps of the opening degree of the electronic expansion valve are refined.

[0096] See Figure 6 The steps for adjusting the opening of the electronic expansion valve shown include:

[0097] S610 determines the target opening degree of the electronic expansion valve based on the actual refrigerant superheat and the target refrigerant superheat.

[0098] The target opening degree of the electronic expansion valve can be understood as the opening degree that the electronic expansion valve needs to achieve in the next adjustment.

[0099] In one optional embodiment, the current opening degree of the electronic expansion valve can be obtained; if the actual refrigerant superheat is greater than the target refrigerant superheat, and the superheat difference between the actual refrigerant superheat and the target refrigerant superheat is greater than a preset superheat difference threshold, then the sum of the current opening degree and the preset opening degree increment is used as the basic opening degree of the electronic expansion valve; if the actual refrigerant superheat is less than the target refrigerant superheat, and the superheat difference between the actual refrigerant superheat and the target refrigerant superheat is greater than the preset superheat difference threshold, then the sum of the current opening degree and the preset opening degree decrement is used as the basic opening degree of the electronic expansion valve.

[0100] The preset superheat difference threshold can be understood as the upper limit of the difference between the actual refrigerant superheat and the target refrigerant superheat. It should be noted that the preset superheat difference threshold, preset opening increment, and preset opening decrement can all be set or adjusted by technicians according to their needs or experience, or determined through extensive testing; this application does not impose any limitations on this. The basic opening of the electronic expansion valve can be understood as the base value of the target opening, that is, the basic opening used to determine the target opening.

[0101] Furthermore, the preset opening correction amount of the electronic expansion valve can be determined based on the compressor feedback speed; the sum of the base opening and the preset opening correction amount is used as the corrected opening of the electronic expansion valve. The preset opening correction amount can be understood as the correction amount used to adjust the base opening. The corrected opening of the electronic expansion valve can be understood as the opening obtained after adjusting the base opening.

[0102] Optionally, the preset opening correction amount of the electronic expansion valve can be determined based on the mapping relationship between the compressor feedback speed and the preset opening correction amount. It should be noted that the mapping relationship between the compressor feedback speed and the preset opening correction amount can be set or adjusted by technicians according to their needs or experience, or determined through a large number of experiments; this application does not impose any limitations on this.

[0103] Furthermore, the target opening of the electronic expansion valve can be determined by limiting the correction opening. For example, if the correction opening is greater than a preset upper opening threshold, the preset upper opening threshold is used as the target opening of the electronic expansion valve; if the correction opening is less than a preset lower opening threshold, the preset lower opening threshold is used as the target opening of the electronic expansion valve. It should be noted that both the preset upper and lower opening thresholds can be set or adjusted by technicians according to their needs or experience, or determined through extensive testing; this application does not impose any limitations on this.

[0104] S620 adjusts the opening of the electronic expansion valve in the integrated refrigeration system according to the target opening of the electronic expansion valve.

[0105] Optionally, at least one preset adjustment cycle can be used as the opening adjustment cycle. In each opening adjustment cycle, the opening of the electronic expansion valve can be adjusted at least once according to the target opening of the electronic expansion valve, so as to avoid frequent adjustment of the opening of the electronic expansion valve from affecting the stable operation of the integrated refrigeration system.

[0106] In this embodiment, the target opening degree of the electronic expansion valve is determined based on the actual refrigerant superheat and the target refrigerant superheat. The opening degree of the electronic expansion valve in the integrated refrigeration system is then adjusted according to the target opening degree of the electronic expansion valve, thereby improving the accuracy of the adjustment of the electronic expansion valve opening degree. This ensures that the refrigerant superheat in the integrated refrigeration system can reach the target refrigerant superheat, thus meeting the cooling needs of the vehicle cab and vehicle battery, and ensuring the stable operation of the integrated refrigeration system.

[0107] Based on the technical solutions of the above embodiments, this application also provides an optional embodiment in which the control method of the integrated refrigeration system is described in detail.

[0108] See Figure 7 The control method of the integrated refrigeration system shown includes:

[0109] S701: Obtain the current operating mode of the integrated refrigeration system.

[0110] S702, if the integrated refrigeration system operates in single refrigeration mode, the preset refrigerant superheat is used as the target refrigerant superheat; if the integrated refrigeration system operates in dual refrigeration mode, the target refrigerant superheat of the integrated refrigeration system is determined based on the operating data of the integrated refrigeration system.

[0111] S703, obtains the basic water ingress temperature of the vehicle battery.

[0112] S704 determines the base correction temperature of the vehicle battery based on evaporator operating data.

[0113] S705 determines a first temperature correction factor based on compressor operating data; and determines a second temperature correction factor based on the maximum temperature of a single battery cell.

[0114] S706, the product of the first temperature correction factor and the second temperature correction factor is used as the target temperature correction factor.

[0115] S707 uses the product of the base correction temperature and the target correction factor as the target correction temperature.

[0116] S708 uses the sum of the base inlet water temperature and the target correction temperature as the reference inlet water temperature for the vehicle battery.

[0117] S709 uses the smaller of the reference inlet water temperature and the maximum temperature of the battery cell as the target inlet water temperature for the vehicle battery.

[0118] S710 gradually adjusts the temperature of the coolant corresponding to the vehicle battery based on the target inlet water temperature, so that the actual inlet water temperature of the coolant corresponding to the vehicle battery reaches the target inlet water temperature.

[0119] S711 obtains the outlet pressure and outlet temperature of the battery heat exchanger when the actual inlet water temperature reaches the target inlet water temperature.

[0120] S712 determines the target refrigerant superheat of the integrated refrigeration system based on the outlet pressure and outlet temperature.

[0121] S713 adjusts the opening of the electronic expansion valve in the integrated refrigeration system based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system.

[0122] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0123] Based on the same inventive concept, this application also provides a control device for an integrated refrigeration system for implementing the control method of the integrated refrigeration system described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more embodiments of the control device for an integrated refrigeration system provided below can be found in the limitations of the control method for the integrated refrigeration system described above, and will not be repeated here.

[0124] In one exemplary embodiment, such as Figure 8 As shown, a control device for an integrated refrigeration system is provided, comprising: an acquisition module 810, a determination module 820, and an adjustment module 830, wherein:

[0125] The acquisition module 810 is used to acquire the current operating mode of the integrated refrigeration system; the current operating mode is either a dual refrigeration mode that simultaneously refrigerates the vehicle cab and the vehicle battery of the target vehicle, or a single refrigeration mode that only refrigerates the vehicle battery of the target vehicle.

[0126] The determination module 820 is used to determine the target refrigerant superheat of the integrated refrigeration system based on the current operating mode of the integrated refrigeration system.

[0127] The adjustment module 830 is used to adjust the opening of the electronic expansion valve in the integrated refrigeration system according to the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system.

[0128] In one embodiment, the determining module 820 includes: a first determining unit, configured to use a preset refrigerant superheat as the target refrigerant superheat if the operating mode of the integrated refrigeration system is a single refrigeration mode; and a second determining unit, configured to determine the target refrigerant superheat of the integrated refrigeration system based on the operating data of the integrated refrigeration system if the operating mode of the integrated refrigeration system is a dual refrigeration mode.

[0129] In one embodiment, the second determining unit includes: a first determining subunit, configured to determine the target inlet water temperature of the cooling water for cooling the vehicle battery based on the operating data of the integrated refrigeration system; and a second determining subunit, configured to determine the target refrigerant superheat of the integrated refrigeration system based on the target inlet water temperature and the actual inlet water temperature of the cooling water corresponding to the vehicle battery.

[0130] In one embodiment, the first determining subunit is further configured to acquire the base water inlet temperature of the vehicle battery; determine the target corrected temperature of the vehicle battery based on the operating data of the integrated cooling system; and determine the target water inlet temperature of the vehicle battery based on the base water inlet temperature and the target corrected temperature.

[0131] In one embodiment, the first determining subunit is further configured to determine the base correction temperature of the vehicle battery based on evaporator operating data; determine the first temperature correction coefficient based on compressor operating data; and determine the second temperature correction coefficient based on the maximum temperature of the battery cell; use the product of the first temperature correction coefficient and the second temperature correction coefficient as the target temperature correction coefficient; and use the product of the base correction temperature and the target correction coefficient as the target correction temperature.

[0132] In one embodiment, the first determining subunit is further configured to use the sum of the base inlet water temperature and the target corrected temperature as the reference inlet water temperature of the vehicle battery; and to use the smaller of the reference inlet water temperature and the maximum temperature of the battery cell as the target inlet water temperature of the vehicle battery.

[0133] In one embodiment, the second determining subunit is further configured to gradually adjust the temperature of the cooling water corresponding to the vehicle battery according to the target inlet water temperature, so that the actual inlet water temperature of the cooling water corresponding to the vehicle battery reaches the target inlet water temperature; when the actual inlet water temperature reaches the target inlet water temperature, the unit acquires the outlet pressure and outlet temperature of the battery heat exchanger; wherein the battery heat exchanger is used to perform heat exchange between the refrigerant of the integrated refrigeration system and the cooling water corresponding to the vehicle battery; and the unit determines the target refrigerant superheat of the integrated refrigeration system according to the outlet pressure and outlet temperature.

[0134] Each module in the control device of the aforementioned integrated refrigeration system can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0135] In one exemplary embodiment, a computer device is provided, the internal structure of which can be as shown in the figure. Figure 9As shown, the computer device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, Near Field Communication (NFC), or other technologies. When the computer program is executed by the processor, it implements a control method for an integrated cooling system. The display unit is used to form a visually visible image and can be a display screen, projection device, or virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0136] Those skilled in the art will understand that Figure 9 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0137] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0138] Obtain the current operating mode of the integrated refrigeration system; the current operating mode is either a dual refrigeration mode that simultaneously refrigerates the vehicle cab and vehicle battery of the target vehicle, or a single refrigeration mode that only refrigerates the vehicle battery of the target vehicle.

[0139] Determine the target refrigerant superheat of the integrated refrigeration system based on its current operating mode.

[0140] Adjust the opening of the electronic expansion valve in the integrated refrigeration system based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system.

[0141] In one embodiment, when the processor executes the computer program, it further implements the following steps: if the operating mode of the integrated refrigeration system is single refrigeration mode, then the preset refrigerant superheat is used as the target refrigerant superheat; if the operating mode of the integrated refrigeration system is dual refrigeration mode, then the target refrigerant superheat of the integrated refrigeration system is determined based on the operating data of the integrated refrigeration system.

[0142] In one embodiment, when the processor executes the computer program, it also performs the following steps: determining the target inlet temperature of the cooling water for cooling the vehicle battery based on the operating data of the integrated refrigeration system; and determining the target refrigerant superheat of the integrated refrigeration system based on the target inlet temperature and the actual inlet temperature of the cooling water corresponding to the vehicle battery.

[0143] In one embodiment, the processor, when executing the computer program, also performs the following steps: obtaining the baseline inlet water temperature of the vehicle battery; determining the target corrected temperature of the vehicle battery based on the operating data of the integrated cooling system; and determining the target inlet water temperature of the vehicle battery based on the baseline inlet water temperature and the target corrected temperature.

[0144] In one embodiment, when the processor executes the computer program, it further performs the following steps: determining a base correction temperature for the vehicle battery based on evaporator operating data; determining a first temperature correction factor based on compressor operating data; and determining a second temperature correction factor based on the maximum temperature of a single battery cell; using the product of the first temperature correction factor and the second temperature correction factor as a target temperature correction factor; and using the product of the base correction temperature and the target correction factor as the target correction temperature.

[0145] In one embodiment, the processor, when executing the computer program, further implements the following steps: using the sum of the base inlet water temperature and the target corrected temperature as the reference inlet water temperature of the vehicle battery; and using the smaller of the reference inlet water temperature and the maximum temperature of the battery cell as the target inlet water temperature of the vehicle battery.

[0146] In one embodiment, when the processor executes the computer program, it further performs the following steps: gradually adjusting the temperature of the cooling water corresponding to the vehicle battery according to the target inlet water temperature, so that the actual inlet water temperature of the cooling water corresponding to the vehicle battery reaches the target inlet water temperature; when the actual inlet water temperature reaches the target inlet water temperature, acquiring the outlet pressure and outlet temperature of the battery heat exchanger; wherein the battery heat exchanger is used to exchange heat between the refrigerant of the integrated refrigeration system and the cooling water corresponding to the vehicle battery; and determining the target refrigerant superheat of the integrated refrigeration system according to the outlet pressure and outlet temperature.

[0147] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0148] Obtain the current operating mode of the integrated refrigeration system; the current operating mode is either a dual refrigeration mode that simultaneously refrigerates the vehicle cab and vehicle battery of the target vehicle, or a single refrigeration mode that only refrigerates the vehicle battery of the target vehicle.

[0149] Determine the target refrigerant superheat of the integrated refrigeration system based on its current operating mode.

[0150] Adjust the opening of the electronic expansion valve in the integrated refrigeration system based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system.

[0151] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: if the operating mode of the integrated refrigeration system is single refrigeration mode, then the preset refrigerant superheat is used as the target refrigerant superheat; if the operating mode of the integrated refrigeration system is dual refrigeration mode, then the target refrigerant superheat of the integrated refrigeration system is determined based on the operating data of the integrated refrigeration system.

[0152] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: determining the target inlet temperature of the cooling water for cooling the vehicle battery based on the operating data of the integrated refrigeration system; and determining the target refrigerant superheat of the integrated refrigeration system based on the target inlet temperature and the actual inlet temperature of the cooling water corresponding to the vehicle battery.

[0153] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: obtaining the baseline inlet water temperature of the vehicle battery; determining the target corrected temperature of the vehicle battery based on the operating data of the integrated cooling system; and determining the target inlet water temperature of the vehicle battery based on the baseline inlet water temperature and the target corrected temperature.

[0154] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: determining a base correction temperature for the vehicle battery based on evaporator operating data; determining a first temperature correction factor based on compressor operating data; and determining a second temperature correction factor based on the maximum temperature of the battery cells; using the product of the first temperature correction factor and the second temperature correction factor as a target temperature correction factor; and using the product of the base correction temperature and the target correction factor as the target correction temperature.

[0155] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: using the sum of the base inlet water temperature and the target corrected temperature as the reference inlet water temperature of the vehicle battery; and using the smaller of the reference inlet water temperature and the maximum temperature of the battery cell as the target inlet water temperature of the vehicle battery.

[0156] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: gradually adjusting the temperature of the cooling water corresponding to the vehicle battery according to the target inlet water temperature, so that the actual inlet water temperature of the cooling water corresponding to the vehicle battery reaches the target inlet water temperature; when the actual inlet water temperature reaches the target inlet water temperature, acquiring the outlet pressure and outlet temperature of the battery heat exchanger; wherein the battery heat exchanger is used to exchange heat between the refrigerant of the integrated refrigeration system and the cooling water corresponding to the vehicle battery; and determining the target refrigerant superheat of the integrated refrigeration system according to the outlet pressure and outlet temperature.

[0157] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps:

[0158] Obtain the current operating mode of the integrated refrigeration system; the current operating mode is either a dual refrigeration mode that simultaneously refrigerates the vehicle cab and vehicle battery of the target vehicle, or a single refrigeration mode that only refrigerates the vehicle battery of the target vehicle.

[0159] Determine the target refrigerant superheat of the integrated refrigeration system based on its current operating mode.

[0160] Adjust the opening of the electronic expansion valve in the integrated refrigeration system based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system.

[0161] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: if the operating mode of the integrated refrigeration system is single refrigeration mode, then the preset refrigerant superheat is used as the target refrigerant superheat; if the operating mode of the integrated refrigeration system is dual refrigeration mode, then the target refrigerant superheat of the integrated refrigeration system is determined based on the operating data of the integrated refrigeration system.

[0162] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: determining the target inlet temperature of the cooling water for cooling the vehicle battery based on the operating data of the integrated refrigeration system; and determining the target refrigerant superheat of the integrated refrigeration system based on the target inlet temperature and the actual inlet temperature of the cooling water corresponding to the vehicle battery.

[0163] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: obtaining the baseline inlet water temperature of the vehicle battery; determining the target corrected temperature of the vehicle battery based on the operating data of the integrated cooling system; and determining the target inlet water temperature of the vehicle battery based on the baseline inlet water temperature and the target corrected temperature.

[0164] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: determining a base correction temperature for the vehicle battery based on evaporator operating data; determining a first temperature correction factor based on compressor operating data; and determining a second temperature correction factor based on the maximum temperature of the battery cells; using the product of the first temperature correction factor and the second temperature correction factor as a target temperature correction factor; and using the product of the base correction temperature and the target correction factor as the target correction temperature.

[0165] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: using the sum of the base inlet water temperature and the target corrected temperature as the reference inlet water temperature of the vehicle battery; and using the smaller of the reference inlet water temperature and the maximum temperature of the battery cell as the target inlet water temperature of the vehicle battery.

[0166] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: gradually adjusting the temperature of the cooling water corresponding to the vehicle battery according to the target inlet water temperature, so that the actual inlet water temperature of the cooling water corresponding to the vehicle battery reaches the target inlet water temperature; when the actual inlet water temperature reaches the target inlet water temperature, acquiring the outlet pressure and outlet temperature of the battery heat exchanger; wherein the battery heat exchanger is used to exchange heat between the refrigerant of the integrated refrigeration system and the cooling water corresponding to the vehicle battery; and determining the target refrigerant superheat of the integrated refrigeration system according to the outlet pressure and outlet temperature.

[0167] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0168] Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. In particular, any reference to memory, database, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the various embodiments provided herein may be, but are not limited to, general-purpose processors, central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), quantum computing-based data processing logic devices, artificial intelligence (AI) processors, and the like.

[0169] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0170] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A control method for an integrated refrigeration system, characterized in that, The method includes: Obtain the current operating mode of the integrated refrigeration system; the current operating mode is a dual refrigeration mode that simultaneously refrigerates the vehicle's cab and vehicle battery. If the current operating mode of the integrated refrigeration system is dual-cooling mode, then based on the operating data of the integrated refrigeration system, the target inlet water temperature for cooling the vehicle battery is determined; based on the target inlet water temperature, the temperature of the cooling water corresponding to the vehicle battery is gradually adjusted so that the actual inlet water temperature of the cooling water corresponding to the vehicle battery reaches the target inlet water temperature; when the actual inlet water temperature reaches the target inlet water temperature, the outlet pressure and outlet temperature of the battery heat exchanger are obtained; wherein, the battery heat exchanger is used for heat exchange between the refrigerant of the integrated refrigeration system and the cooling water corresponding to the vehicle battery; based on the outlet pressure and the outlet temperature, the target refrigerant superheat of the integrated refrigeration system is determined. The opening degree of the electronic expansion valve in the integrated refrigeration system is adjusted according to the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system.

2. The method according to claim 1, characterized in that, The step of determining the target inlet temperature of the cooling water for cooling the vehicle battery based on the operating data of the integrated refrigeration system includes: Obtain the baseline water ingress temperature of the vehicle battery; Based on the operating data of the integrated refrigeration system, the target corrected temperature of the vehicle battery is determined; The target water inlet temperature of the vehicle battery is determined based on the base water inlet temperature and the target correction temperature.

3. The method according to claim 2, characterized in that, The operating data of the integrated refrigeration system includes evaporator operating data, compressor operating data, and maximum temperature of individual battery cells; determining the target correction temperature of the vehicle battery based on the operating data of the integrated refrigeration system includes: Based on the evaporator operating data, determine the base correction temperature of the vehicle battery; Based on the compressor operating data, a first temperature correction coefficient is determined; and based on the maximum temperature of the battery cell, a second temperature correction coefficient is determined. The product of the first temperature correction factor and the second temperature correction factor is used as the target temperature correction factor. The target correction temperature is the product of the base correction temperature and the target correction factor.

4. The method according to claim 3, characterized in that, Determining the target water inlet temperature of the vehicle battery based on the baseline water inlet temperature and the target correction temperature includes: The sum of the base inlet water temperature and the target correction temperature is used as the reference inlet water temperature of the vehicle battery. The smaller of the reference inlet water temperature and the maximum temperature of the battery cell shall be used as the target inlet water temperature of the vehicle battery.

5. The method according to claim 1, characterized in that, The step of adjusting the opening of the electronic expansion valve in the integrated refrigeration system based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system includes: The target opening degree of the electronic expansion valve in the integrated refrigeration system is determined based on the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system. Adjust the opening degree of the electronic expansion valve in the integrated refrigeration system according to the target opening degree.

6. A control device for an integrated refrigeration system, characterized in that, The device includes: The acquisition module is used to acquire the current operating mode of the integrated refrigeration system; the current operating mode is a dual refrigeration mode that simultaneously refrigerates the vehicle's cab and vehicle battery. The module is configured to: if the current operating mode of the integrated refrigeration system is dual-refrigeration mode, determine the target inlet temperature of the cooling water for cooling the vehicle battery based on the operating data of the integrated refrigeration system; gradually adjust the temperature of the cooling water corresponding to the vehicle battery according to the target inlet temperature so that the actual inlet temperature of the cooling water corresponding to the vehicle battery reaches the target inlet temperature; and, when the actual inlet temperature reaches the target inlet temperature, acquire the outlet pressure and outlet temperature of the battery heat exchanger; wherein the battery heat exchanger is used for heat exchange between the refrigerant of the integrated refrigeration system and the cooling water corresponding to the vehicle battery; and determine the target refrigerant superheat of the integrated refrigeration system based on the outlet pressure and the outlet temperature. The adjustment module is used to adjust the opening of the electronic expansion valve in the integrated refrigeration system according to the target refrigerant superheat and the actual refrigerant superheat of the integrated refrigeration system.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.

9. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.

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