Method and apparatus for controlling a vehicle refrigeration system and medium, refrigeration system and vehicle

Abstract

This invention discloses a method for controlling an on-board cooling system, as well as electronic equipment, a storage medium, an on-board cooling system, and a vehicle. The on-board cooling system includes an on-board refrigerator, which comprises a direct heat exchanger and a cold storage heat exchanger connected in parallel. The method includes: the on-board refrigerator has a cooling demand; based on the vehicle's real-time status information and the stored cold capacity of the cold storage heat exchanger, controlling the operating modes of the direct heat exchanger and the cold storage heat exchanger, wherein when the real-time status information meets preset energy-saving trigger conditions and the stored cold capacity of the cold storage heat exchanger exceeds a cooling capacity threshold, the activation priority of the cold storage heat exchanger is higher than that of the direct heat exchanger. This method of the invention can reduce energy consumption and improve the vehicle's range while meeting the needs of the on-board cooling equipment.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a method for controlling an on-board refrigeration system, as well as electronic devices and computer-readable storage media, on-board refrigeration systems, and vehicles. Background Technology

[0002] In related technologies, in-vehicle refrigeration equipment, such as in-vehicle refrigerators and air conditioners, consumes the vehicle's electrical energy. In-vehicle refrigerators typically achieve cooling or heating through compressors and direct heat exchangers. Some in-vehicle refrigerators incorporate cold storage heat exchangers, controlling the operation of both the cold storage and direct heat exchangers based on the refrigerator's cooling needs. However, the operating environment of a vehicle is complex. Controlling the compressor and heat exchanger solely based on the refrigerator's cooling requirements can easily increase overall vehicle energy consumption and affect the vehicle's range. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, the first objective of the present invention is to provide a method for controlling an in-vehicle refrigeration system, which can reduce the energy consumption of the in-vehicle refrigerator on the whole vehicle while ensuring the normal operation of the in-vehicle refrigerator, thereby improving the vehicle's driving range.

[0004] The second objective of this invention is to provide an electronic device.

[0005] A third objective of this invention is to provide a computer-readable storage medium.

[0006] The fourth objective of this invention is to provide an in-vehicle refrigeration system.

[0007] The fifth objective of this invention is to provide a vehicle.

[0008] To achieve the above objectives, a first aspect of the present invention provides a method for controlling an on-board refrigeration system. The on-board refrigeration device includes an on-board refrigerator, which includes a direct heat exchanger and a cold storage heat exchanger connected in parallel. The method includes: the on-board refrigerator having a refrigeration demand; and controlling the operating modes of the direct heat exchanger and the cold storage heat exchanger based on the real-time status information of the vehicle and the stored cold capacity of the cold storage heat exchanger. Specifically, when the real-time status information meets a preset energy-saving trigger condition and the stored cold capacity of the cold storage heat exchanger exceeds a cold capacity threshold, the use priority of the cold storage heat exchanger is higher than that of the direct heat exchanger.

[0009] According to the method for controlling vehicle-mounted refrigeration equipment according to embodiments of the present invention, the operating modes of the direct heat exchanger and the cold storage heat exchanger are controlled based on the real-time status information of the vehicle and the stored cold capacity of the cold storage heat exchanger. The operation of the vehicle-mounted refrigerator is controlled by comprehensively considering the overall vehicle operating status, resulting in a more optimized control strategy. Furthermore, when the real-time status information meets the preset energy-saving trigger conditions and the stored cold capacity of the cold storage heat exchanger exceeds the cold capacity threshold, the use priority of the cold storage heat exchanger is higher than that of the direct heat exchanger. This can reduce the energy consumption of the vehicle-mounted refrigerator and improve the overall vehicle range performance while meeting the refrigeration needs of the vehicle-mounted refrigerator.

[0010] In some embodiments, the real-time status information includes the vehicle battery level; the preset energy-saving trigger condition includes the vehicle battery level being lower than a preset power threshold.

[0011] In some embodiments, the real-time status information includes ambient temperature; the preset energy-saving trigger condition includes an ambient temperature lower than a preset temperature threshold.

[0012] In some embodiments, the vehicle refrigeration system further includes a vehicle air conditioner, which shares a compressor with the vehicle refrigerator; the real-time status information includes the usage demand signal of the vehicle air conditioner and the target temperature of the air conditioner; the preset energy-saving trigger condition includes receiving the usage demand signal and the temperature difference between the target temperature of the air conditioner and the current ambient temperature being greater than a temperature difference threshold.

[0013] In some embodiments, the real-time status information includes a vehicle battery temperature regulation demand signal; the preset energy-saving trigger condition includes detecting the vehicle battery temperature regulation demand signal.

[0014] In some embodiments, the operating modes of the direct heat exchanger and the cold storage heat exchanger are controlled based on the real-time status information of the vehicle and the stored cold capacity of the cold storage heat exchanger. This further includes: when the vehicle battery charge is greater than or equal to the preset charge threshold and the stored cold capacity has not reached its full value, the direct heat exchanger is in a refrigerant flow state for heat exchange, and the cold storage heat exchanger is in a refrigerant flow state or a non-refrigerant flow state for cold capacity storage, wherein the full value of the cold capacity is greater than the cold capacity threshold.

[0015] In some embodiments, the operating modes of the direct heat exchanger and the cold storage heat exchanger are controlled based on the real-time status information of the vehicle and the stored cold capacity of the cold storage heat exchanger. This further includes: when the vehicle battery charge is greater than or equal to the preset charge threshold and the stored cold capacity reaches its full value, the direct heat exchanger is in a refrigerant flow state for heat exchange, and the cold storage heat exchanger is in a non-refrigerant flow state, wherein the full value of the cold capacity is greater than the cold capacity threshold.

[0016] In some embodiments, the operating modes of the direct heat exchanger and the cold storage heat exchanger are controlled based on the real-time status information of the vehicle and the stored cold capacity of the cold storage heat exchanger. This further includes: when the vehicle battery charge is less than the preset charge threshold and the stored cold capacity is less than the cold capacity threshold, the direct heat exchanger is in a refrigerant flow state to perform heat exchange, and the cold storage heat exchanger is in a non-refrigerant flow state.

[0017] In some embodiments, the cold storage heat exchanger includes a cold storage module and a heat exchanger module. The cold storage module is configured to absorb and store cold energy from the heat exchanger module when the heat exchanger module is in a refrigerant flow state, and to release the cold energy when the heat exchanger module is in a non-refrigerant flow state.

[0018] To achieve the above objectives, a second aspect of the present invention provides an electronic device comprising: at least one processor; a memory communicatively connected to the at least one processor; the memory storing a computer program executable by the at least one processor, wherein the at least one processor executes the computer program to implement the method for controlling an in-vehicle cooling system.

[0019] According to the electronic device of the present invention, by executing the method of controlling the vehicle cooling system of the above embodiment through a processor, energy consumption can be reduced and the vehicle range can be extended while meeting the needs of the vehicle cooling equipment.

[0020] To achieve the above objectives, a third aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, characterized in that the computer program, when executed, implements the method for controlling the vehicle-mounted refrigeration system.

[0021] To achieve the above objectives, a fourth aspect of the present invention provides an on-board refrigeration system, characterized in that it includes an on-board refrigerator, the on-board refrigerator comprising a direct heat exchanger and a cold storage heat exchanger connected in parallel, the direct heat exchanger and the cold storage heat exchanger operating based on the method for controlling the on-board refrigeration system.

[0022] According to the vehicle-mounted refrigeration system of the present invention, the direct heat exchanger and the cold storage heat exchanger of the vehicle-mounted refrigerator operate using the method of controlling the vehicle-mounted refrigeration system of the above embodiment, which can reduce energy consumption and improve the vehicle's range while meeting the refrigeration needs of the vehicle-mounted refrigerator.

[0023] In some embodiments, the vehicle-mounted refrigeration system further includes a compressor connected to the vehicle-mounted refrigerator, used to compress refrigerant and discharge it to the vehicle-mounted refrigerator.

[0024] In some embodiments, the vehicle refrigeration system further includes a vehicle air conditioner connected to the compressor.

[0025] In some embodiments, the vehicle refrigeration system further includes a first control valve, which is connected to the compressor, the vehicle refrigerator, and the vehicle air conditioner, and is used to control the flow direction of the refrigerant discharged by the compressor.

[0026] In some embodiments, the vehicle refrigerator further includes a second control valve, which is connected to the first control valve, the direct heat exchanger, and the cold storage heat exchanger, for controlling the flow direction of the refrigerant inside the vehicle refrigerator.

[0027] In some embodiments, the vehicle refrigerator further includes: a first throttle switch, which is connected to the second control valve and the direct heat exchanger, for controlling the flow state of the refrigerant in the direct heat exchanger; and a second throttle switch, which is connected to the second control valve and the cold storage heat exchanger, for controlling the flow state of the refrigerant in the cold storage heat exchanger.

[0028] In some embodiments, the vehicle-mounted refrigeration system further includes a controller connected to the first control valve, the second control valve, the first throttle switch, and the second throttle switch, for controlling the on / off states of the first control valve, the second control valve, the first throttle switch, and the second throttle switch according to the real-time status information of the vehicle.

[0029] To achieve the above objectives, a fifth aspect of the present invention provides a vehicle that includes the aforementioned electronic equipment, or the vehicle includes the aforementioned on-board refrigeration system.

[0030] According to the vehicle of the present invention, by adopting the electronic equipment or vehicle cooling system of the above embodiments, energy consumption can be reduced and the vehicle range can be extended while meeting the requirements of vehicle cooling equipment.

[0031] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0032] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a vehicle-mounted refrigerator according to an embodiment of the present invention; Figure 2 This is a flowchart of a method for controlling an on-board refrigeration system according to an embodiment of the present invention; Figure 3 This is a block diagram of an in-vehicle refrigeration system according to an embodiment of the present invention; Figure 4 This is a flowchart of a method for controlling a vehicle-mounted refrigerator according to an embodiment of the present invention; Figure 5 This is a block diagram of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0033] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0034] In an embodiment of the present invention, the vehicle-mounted refrigeration system and its control method include a vehicle-mounted refrigerator, which includes a direct heat exchanger and a cold storage heat exchanger connected in parallel. For ease of understanding, the structure of the refrigeration system will be described below first.

[0035] In some embodiments, the present invention provides an in-vehicle refrigeration system, which may include a device for regulating temperature in a vehicle, such as an in-vehicle refrigerator. The in-vehicle refrigerator may be a single-layer flip-top refrigerator, a single-layer drawer refrigerator, or a double-layer refrigerator, without any specific limitation.

[0036] Figure 1 This is a schematic diagram of a vehicle-mounted refrigerator according to an embodiment of the present invention, as shown below. Figure 1 As shown, the vehicle-mounted refrigerator 10 of this embodiment includes at least a direct heat exchanger 203 and a cold storage heat exchanger 4, which are connected in parallel to achieve decoupling. In the cooling operation of the vehicle-mounted refrigerator 10, either the direct heat exchanger or the cold storage heat exchanger can be used alone, or both can be used simultaneously.

[0037] In some embodiments, the cold storage heat exchanger 4 may employ a phase change cold storage material. This material can store cold energy when refrigerant is introduced or store energy through heat exchange with the direct heat exchanger 203. When the compressor stops working, i.e., when no refrigerant is supplied, the cold storage heat exchanger 4 is in a state of releasing cold energy to maintain a stable internal temperature of the refrigerator. The phase change cold storage material operates as a component of the cold storage heat exchanger. Specifically, after the compressor stops, the refrigerator's cooling capacity decreases. At this time, the cold energy release channel of the cold storage heat exchanger is opened, and the latent heat of the phase change material is released to replenish the refrigerator's cooling capacity.

[0038] In some embodiments, the direct heat exchanger 203 can use a tubular evaporator and condenser to directly exchange heat with the refrigerator liner. Specifically, a direct cooling circulation path can be formed by a compressor, a direct heat exchanger (evaporator, condenser), and a throttling device to regulate the internal temperature of the refrigerator.

[0039] Specifically, in some embodiments, such as Figure 1 As shown, the refrigerator top cover 101 is connected to the refrigerator fixture 104, which allows it to connect to other interior and exterior parts of the vehicle. The refrigerator top cover 101 and the refrigerator fixture 104 are located on the upper part of the refrigerator outer shell 105. The vehicle refrigerator can be equipped with a control panel, which can be located on the side of the refrigerator outer shell 105. The refrigerator bottom plate 103, the refrigerator outer shell 105, and the refrigerator top cover 101 can all be made of non-metallic materials with low thermal conductivity.

[0040] The refrigerator liner is located inside the refrigerator shell. A direct heat exchanger 203 can be attached to the refrigerator liner 102 for heat exchange. The direct heat exchanger 203 is encased in a refrigerator aerogel insulation layer 3, thereby reducing heat loss and preventing condensation on the outer surface of the refrigerator shell 105. The refrigerator aerogel insulation layer is made of aerogel, and the refrigerator liner 102 is a thermally conductive material to enhance the heat exchange capacity of the external heat exchanger to the refrigerator interior.

[0041] In some embodiments, the cold storage heat exchanger 4 can be a serpentine coaxial tube structure and placed inside the refrigerator liner 102. The cold storage heat exchanger 4 includes a coaxial tube, a cold storage refrigerant, and fins. In the coaxial tube, the inner pipe is a refrigerant flow channel, and the space between the outer pipe and the inner pipe is filled with cold storage refrigerant. The refrigerant flow channel, the refrigerant inlet 401, and the refrigerant outlet 402 of the cold storage heat exchanger 4 can be an integral part.

[0042] In this embodiment, the direct heat exchanger 203 and the cold storage heat exchanger 4 operate in parallel. The refrigerant inlet 401 of the cold storage heat exchanger and the inlet 201 of the external direct heat exchanger are controlled by two independent throttling valves, so that the two heat exchangers can reach different working states and operate independently.

[0043] In this embodiment, the cold storage heat exchanger 4 can contact the lower floor 103 of the refrigerator, and cool the lower floor 103 of the refrigerator by contacting it to conduct heat, thereby increasing the heat exchange area and improving the cooling rate.

[0044] The above is an example of a vehicle-mounted refrigerator according to an embodiment of the present invention. Of course, vehicle-mounted refrigerators can also adopt other architectures including direct heat exchangers and cold storage heat exchangers. In related technologies, for some vehicle-mounted refrigerators that include direct heat exchangers and cold storage heat exchangers, the direct heat exchangers and cold storage heat exchangers are mostly controlled based on the needs of the vehicle-mounted refrigerator itself. Considering the complex operating environment of the whole vehicle and the problem of the vehicle's range, the present invention proposes a method for controlling vehicle-mounted refrigeration equipment.

[0045] The following is for reference. Figures 2-4 A method for controlling an on-board refrigeration device according to an embodiment of the present invention is described.

[0046] Figure 2This is a flowchart of a method for controlling an on-board refrigeration device according to an embodiment of the present invention. The on-board refrigeration device includes an on-board refrigerator, which includes a direct heat exchanger and a cold storage heat exchanger connected in parallel. For example, this method can be used with the on-board refrigerator of the above embodiment. Figure 2 As shown, the method for controlling the vehicle-mounted refrigeration equipment according to an embodiment of the present invention includes the following steps S1 and S2.

[0047] S1, the car refrigerator has a cooling requirement.

[0048] Specifically, the temperature difference between the internal temperature of the vehicle refrigerator and the target temperature can be used to determine whether the vehicle refrigerator needs to cool, so as to maintain the internal temperature of the refrigerator near the target temperature. If the refrigerator needs to run for cooling, it is determined that the vehicle refrigerator has a cooling requirement.

[0049] S2 controls the operating modes of the direct heat exchanger and the cold storage heat exchanger based on the vehicle's real-time status information and the stored cold capacity of the cold storage heat exchanger. When the real-time status information meets the preset energy-saving trigger conditions and the stored cold capacity of the cold storage heat exchanger exceeds the cold capacity threshold, the use priority of the cold storage heat exchanger is higher than that of the direct heat exchanger.

[0050] The cooling capacity threshold can be zero or greater than zero.

[0051] Specifically, considering the overall vehicle operation, based on real-time vehicle status information such as, but not limited to, battery level, ambient temperature, passenger air conditioning needs, and battery cooling needs, the operating mode of the refrigeration equipment is optimized using this real-time status information to achieve energy savings and extend equipment lifespan.

[0052] In the embodiments, the direct heat exchanger and the cold storage heat exchanger can work independently or simultaneously. Based on information such as the vehicle's power consumption or whether other vehicle components have power consumption needs, and combined with the cold storage capacity of the cold storage heat exchanger, the working state of the direct heat exchanger and the cold storage heat exchanger is optimized. While ensuring that the cooling needs of the on-board refrigerator are met, the overall vehicle energy consumption is reduced and the driving range is improved.

[0053] The preset energy-saving trigger conditions may include conditions such as low vehicle power or other vehicle power consumption needs, such as vehicle air conditioning cooling needs, battery temperature regulation needs, or ambient temperature below a threshold, or other situations that require consideration of vehicle energy consumption.

[0054] When the real-time status information meets the preset energy-saving trigger conditions and the stored cold capacity of the cold storage heat exchanger exceeds the cold capacity threshold, the vehicle refrigerator will prioritize using the energy released by the cold storage heat exchanger to meet the cooling needs of the vehicle refrigerator and maintain the temperature inside the vehicle.

[0055] In the embodiments, the method for controlling the vehicle-mounted refrigeration equipment of the present invention can be implemented with intelligent control logic through software programming and integrated using existing hardware platforms, making it simple and easy to implement.

[0056] According to the method for controlling vehicle-mounted refrigeration equipment according to embodiments of the present invention, the operating modes of the direct heat exchanger and the cold storage heat exchanger are controlled based on the real-time status information of the vehicle and the stored cold capacity of the cold storage heat exchanger. The operation of the vehicle-mounted refrigerator is controlled by comprehensively considering the overall vehicle operating status, resulting in a more optimized control strategy. Furthermore, when the real-time status information meets the preset energy-saving trigger conditions and the stored cold capacity of the cold storage heat exchanger exceeds the cold capacity threshold, the use priority of the cold storage heat exchanger is higher than that of the direct heat exchanger. This can reduce the energy consumption of the vehicle-mounted refrigerator and improve the overall vehicle range performance while meeting the refrigeration needs of the vehicle-mounted refrigerator.

[0057] The following describes several scenarios of the method of this embodiment of the invention in conjunction with the real-time status information of vehicle operation and the stored cold capacity of the cold storage heat exchanger.

[0058] In some embodiments, real-time status information includes vehicle battery power, and preset energy-saving trigger conditions include vehicle battery power falling below a preset power threshold.

[0059] Specifically, the vehicle's battery level data is acquired in real time. When the vehicle's battery level is lower than a preset threshold, such as 50%, and the cold storage heat exchanger has stored cold energy, and the onboard refrigerator has a cooling demand, the cold storage heat exchanger is activated first to reduce the running time of the direct heat exchanger and reduce the impact of energy consumption on the vehicle's battery level.

[0060] In some embodiments, the real-time status information includes the ambient temperature, and the preset energy-saving trigger condition includes the ambient temperature being lower than a preset temperature threshold.

[0061] Specifically, ambient temperature information is collected. If the ambient temperature is low, for example, below a preset temperature threshold, such as ≤15℃, and the cold storage heat exchanger stores cold energy, the cold storage heat exchanger will be activated first if the vehicle refrigerator has a cooling demand, thereby reducing the running time of the direct heat exchanger and reducing the impact of energy consumption on the vehicle's power.

[0062] In some embodiments, the vehicle cooling system further includes a vehicle air conditioner, which shares a compressor with the vehicle refrigerator. For example... Figure 3 The diagram shown is a schematic of the architecture of an in-vehicle refrigeration system according to an embodiment of the present invention. The compressor controls the flow path of the refrigerant through a switching valve, such as a three-way valve, so as to enable the in-vehicle refrigerator and the in-vehicle air conditioner to share the compressor.

[0063] In this embodiment, the real-time status information may include a usage demand signal for the vehicle's air conditioning and the target air conditioning temperature. The preset energy-saving trigger condition includes receiving the vehicle's air conditioning usage demand signal and the temperature difference between the target air conditioning temperature and the current ambient temperature being greater than a temperature difference threshold, indicating that the passenger has high requirements for the vehicle's air conditioning temperature.

[0064] Specifically, upon receiving a passenger's air conditioning demand signal, when the passenger has a high requirement for the in-vehicle air conditioning temperature, and the coarse heat exchanger stores cold energy, the refrigerant flow is controlled to the air conditioning evaporator and the refrigerant is prevented from flowing to the refrigerator's direct evaporator. The refrigerator cools down by first activating the cold storage heat exchanger, reducing the operating time of the direct heat exchanger, thereby reducing the impact of energy consumption on the vehicle's power consumption.

[0065] Furthermore, in the embodiment, when the vehicle air conditioner has a demand, the refrigerant flow path between the compressor and the vehicle air conditioner is connected. At this time, the vehicle refrigerator has a cooling demand and the cold storage heat exchanger has a cooling capacity. The cold storage heat exchanger can be activated first to reduce the usage time of the direct heat exchanger and reduce the energy consumption of the vehicle refrigerator.

[0066] In some embodiments, the real-time status information of the vehicle may also include a vehicle battery temperature regulation demand signal. The preset energy-saving triggering condition includes detecting a vehicle battery temperature regulation demand signal, that is, the battery needs to be regulated by electrical energy or a battery temperature regulation system, which requires the generation of vehicle energy consumption. At this time, a cold storage heat exchanger can be used to cool the vehicle refrigerator and reduce the energy consumption of the vehicle refrigerator.

[0067] Specifically, the system monitors the battery cooling requirements. If the vehicle battery needs to be cooled to ensure its normal operating performance, the refrigerator will first activate the phase change cold storage module to reduce the running time of the direct cooling module, thereby reducing the impact of energy consumption on the vehicle's battery level.

[0068] The above describes a scenario where the vehicle's real-time status information meets the preset energy-saving trigger conditions and the stored cold capacity of the cold storage heat exchanger exceeds the cold capacity threshold. The vehicle's real-time status information and the stored cold capacity of the cold storage heat exchanger may also be less than the cold capacity threshold, as explained below.

[0069] In some embodiments, the operation modes of the direct heat exchanger and the cold storage heat exchanger are controlled based on the real-time status information of the vehicle and the stored cold capacity of the cold storage heat exchanger. The control also includes: when the vehicle battery charge is greater than or equal to a preset charge threshold and the stored cold capacity has not reached its full value, the direct heat exchanger is in a refrigerant flow state to perform heat exchange, and the cold storage heat exchanger is in a refrigerant flow state or a non-refrigerant flow state to store cold capacity, wherein the full value of cold capacity is greater than the cold capacity threshold.

[0070] Specifically, when the compressor's high-power operation conditions are met, such as the vehicle battery charge being greater than or equal to a preset charge threshold, such as 50%, and the cold storage heat exchanger also has energy storage capacity, it can accelerate cooling and simultaneously circulate excess cooling energy through the condenser to the cold storage heat exchanger. For example... Figure 3 As shown, the refrigerant distribution is as follows: when the compressor is running, the refrigerant channel to the direct heat exchanger is opened, and the refrigerant channel to the cold storage heat exchanger is also opened; or, only the refrigerant channel to the direct heat exchanger is opened, and the cold storage material in the cold storage heat exchanger absorbs the excess cold energy of the refrigerator through heat conduction.

[0071] In some embodiments, the operating modes of the direct heat exchanger and the cold storage heat exchanger are controlled based on the vehicle's real-time status information and the stored cold capacity of the cold storage heat exchanger. This further includes: when the vehicle battery charge is greater than or equal to a preset charge threshold and the stored cold capacity reaches its maximum value, the direct heat exchanger is in a refrigerant flow state for heat exchange, and the cold storage heat exchanger is in a non-refrigerant flow state, wherein the maximum cold capacity is greater than the cold capacity threshold. The maximum cold capacity can be the upper limit of energy storage for the cold storage heat exchanger. Preferably, the cold capacity is a value close to but less than the upper limit of energy storage for the cold storage heat exchanger, and can be stored to its maximum value through heat conduction by the cold storage heat exchanger.

[0072] In some embodiments, the operating modes of the direct heat exchanger and the cold storage heat exchanger are controlled based on the real-time status information of the vehicle and the stored cold capacity of the cold storage heat exchanger. The control also includes: when the vehicle battery charge is less than a preset charge threshold and the stored cold capacity is less than a cold capacity threshold, the direct heat exchanger is in a refrigerant flow state to perform heat exchange, and the cold storage heat exchanger is in a non-refrigerant flow state.

[0073] Specifically, when the vehicle battery charge is less than a preset charge threshold, such as 50%, it is considered that the vehicle's real-time status information does not meet the conditions for the refrigerator to operate at full power. If the cold storage heat exchanger does not store enough cold energy, the refrigerant can be directed to the refrigerator. The refrigerant flow rate is controlled, the direct heat exchanger receives the refrigerant, while the cold storage heat exchanger does not receive the refrigerant. At this time, the direct heat exchanger cools the refrigerator, and the phase change cold storage material in the cold storage heat exchanger can recover the excess cold energy of the refrigerator through heat conduction.

[0074] Figure 4 This is a flowchart of a method for controlling a vehicle-mounted refrigerator according to an embodiment of the present invention, in conjunction with... Figure 3 And such as Figure 4 As shown, it includes: S11, users have a need to use a car refrigerator.

[0075] S12 obtains real-time vehicle status information, including but not limited to battery level, ambient temperature, air conditioning cooling requirements, and battery temperature regulation requirements.

[0076] S13. Does the real-time status information meet the conditions for full-power use of the vehicle refrigerator? If yes, proceed to step S14; otherwise, proceed to step S17.

[0077] S14. Check if the cold storage capacity of the vehicle refrigerator's heat exchanger has reached its full value. If yes, proceed to step S16; otherwise, proceed to step S15.

[0078] S15 controls the flow of refrigerant to the vehicle refrigerator. The direct heat exchanger and the cold storage heat exchanger simultaneously receive refrigerant, enabling the vehicle refrigerator to cool down and the cold storage heat exchanger to store cold energy.

[0079] S16. Control the refrigerant flow to the vehicle refrigerator, and the direct heat exchanger receives the refrigerant, so that the vehicle refrigerator can cool down, and the cold storage heat exchanger does not receive the refrigerant.

[0080] S17. Determine whether the cold storage heat exchanger has a certain amount of cold energy. If yes, proceed to step S18; otherwise, proceed to step S19.

[0081] S18 prioritizes using the cold storage heat exchanger to cool the vehicle refrigerator.

[0082] S19 controls the flow of refrigerant to the vehicle refrigerator, controls the refrigerant flow rate, and the direct heat exchanger receives refrigerant to make the refrigerator cool. The cold storage heat exchanger does not receive refrigerant and absorbs the excess cold energy of the refrigerator through heat conduction.

[0083] In some embodiments, the cold storage heat exchanger includes a cold storage module and a heat exchanger module. The cold storage module is configured to absorb and store cold energy from the heat exchanger module when the heat exchanger module is in a refrigerant flow state, and to release cold energy when the heat exchanger module is in a non-refrigerant flow state.

[0084] For example, the cold storage module can be a module using phase change cold storage materials, which release or absorb cold energy through a phase change. The heat exchanger module can be a plate heat exchanger or a tubular heat exchanger. The heat exchanger module can be connected to the compressor and can circulate refrigerant. The cold storage module can absorb and store cold energy when the heat exchanger module is connected to refrigerant. When the heat exchanger module is not connected to refrigerant, the cold storage module is in a refrigerant release state, thus supplementing the refrigerator's cooling capacity.

[0085] The method for controlling on-board refrigeration equipment according to the present invention collects information such as vehicle battery power, ambient temperature, passenger air conditioning demand, and battery cooling demand in real time. Based on the collected data, it determines whether the direct heat exchanger needs to be activated for cooling, and decides the timing of charging and discharging the cold storage heat exchanger, dynamically adjusting the power output of the refrigeration equipment to ensure that energy consumption is reduced as much as possible while meeting user needs.

[0086] Based on the method for controlling vehicle-mounted refrigeration equipment in the above embodiments, a second aspect of the present invention provides an electronic device.

[0087] Figure 5 A block diagram of an electronic device according to an embodiment of the present invention, such as Figure 5 As shown, the electronic device 100 includes at least one processor 110 and a memory 120.

[0088] The memory 120 is communicatively connected to at least one processor 110. The memory 120 stores a computer program that can be executed by at least one processor 110. When the at least one processor 110 executes the computer program, it implements the method for controlling the vehicle cooling system of the above embodiment.

[0089] In this embodiment, the electronic device 100 can be a controller for an in-vehicle refrigeration system. The controller can be an independent control unit, an in-vehicle terminal, a domain controller or central controller of the vehicle, or other devices, without specific limitations.

[0090] According to the present invention, the electronic device 100 executes the method for controlling the vehicle cooling system of the above embodiment through the processor 110, which can reduce energy consumption and extend the vehicle's range while meeting the needs of the vehicle cooling equipment.

[0091] A third aspect of the present invention also provides a computer-readable storage medium having a computer program stored thereon, characterized in that the computer program, when executed, implements the method for controlling the vehicle-mounted cooling system.

[0092] A fourth aspect of the present invention also proposes an on-board refrigeration system.

[0093] Vehicle-mounted refrigeration systems include refrigerators. For example... Figure 1 As shown, the vehicle refrigerator 10 includes a direct heat exchanger 203 and a cold storage heat exchanger 4 connected to the refrigerator. The direct heat exchanger 203 and the cold storage heat exchanger 4 operate based on the method for controlling the vehicle refrigeration system in the above embodiment.

[0094] Among them, the cold storage heat exchanger 4 can be a phase change material with high latent heat and low melting point. The cold storage heat exchanger can be installed inside or outside the refrigerator, and there are no specific restrictions.

[0095] In some embodiments, the cold storage heat exchanger includes a cold storage module and a heat exchanger module. The cold storage module is configured to absorb and store cold energy from the heat exchanger module when the heat exchanger module is in a refrigerant flow state, and to release cold energy when the heat exchanger module is in a non-refrigerant flow state.

[0096] For example, the cold storage module can be a module using phase change cold storage materials, which release or absorb cold energy through a phase change. The heat exchanger module can be a plate heat exchanger or a tubular heat exchanger. The heat exchanger module can be connected to the compressor and can circulate refrigerant. The cold storage module can absorb and store cold energy when the heat exchanger module is connected to refrigerant. When the heat exchanger module is not connected to refrigerant, the cold storage module is in a refrigerant release state, thus supplementing the refrigerator's cooling capacity.

[0097] For direct cooling with a direct heat exchanger, refrigerant is discharged through a compressor and heat exchange occurs in the refrigeration circuit formed by the direct heat exchanger (evaporator), condenser, and throttling device, thereby achieving temperature regulation inside the refrigerator.

[0098] In this embodiment, the vehicle refrigerator 10 can be a single-layer flip-top refrigerator, a single-layer drawer refrigerator, or a double-layer refrigerator; no specific limitations are imposed here.

[0099] According to the vehicle-mounted refrigeration system of the present invention, the direct heat exchanger 203 and the cold storage heat exchanger 4 of the vehicle-mounted refrigerator operate using the method of controlling the vehicle-mounted refrigeration system of the above embodiment, which can reduce energy consumption and improve the vehicle's range while meeting the refrigeration needs of the vehicle-mounted refrigerator.

[0100] like Figure 3 As shown, the vehicle-mounted refrigeration system 1000 also includes a compressor 20, which is connected to the vehicle-mounted refrigerator 10 and is used to compress the refrigerant and discharge it to the vehicle-mounted refrigerator 10 to realize the refrigerant circulation in the vehicle-mounted refrigerator 10.

[0101] like Figure 3 As shown, the vehicle refrigeration system 1000 also includes a vehicle air conditioner 30, which is connected to the compressor 20 to transfer the refrigerant compressed by the compressor to the vehicle air conditioner 30 to achieve cooling.

[0102] like Figure 3 As shown, the vehicle refrigeration system 1000 also includes a first control valve 40, which is connected to the compressor 20, the vehicle refrigerator 10 and the vehicle air conditioner 30, and is used to control the flow direction of the refrigerant discharged by the compressor. Figure 3 Take the three-way valve as an example.

[0103] like Figure 3 As shown in the figure, the electronic expansion valve between the first control valve 40 and the vehicle air conditioner 30 is also shown. In some embodiments, the refrigerator compressor and the air conditioner compressor can be controlled by software, which can replace the function of the electronic expansion valve. Therefore, this system can also be applied to independent compressor type vehicle refrigerators.

[0104] like Figure 3As shown, the vehicle refrigerator 10 also includes a second control valve 41, which is connected to the first control valve 40, the direct heat exchanger 203 and the cold storage heat exchanger 4, and is used to control the flow direction of the refrigerant inside the vehicle refrigerator. Figure 3 The second control valve 41 is a three-way valve as an example. The direct heat exchanger 203 and the cold storage heat exchanger 4 can be connected to the refrigerant separately or simultaneously; no specific restrictions are imposed here, and the control strategy for the specific scenario of the method in the above embodiment can be referred to.

[0105] like Figure 3 As shown, the vehicle refrigerator 10 also includes a first throttle switch 42 and a second throttle switch 43. The first throttle switch 43 is connected to the second control valve 41 and the direct heat exchanger 203, and is used to control the refrigerant flow state of the direct heat exchanger 203, such as opening or closing the refrigerant flow path of the direct heat exchanger 203.

[0106] The second throttle switch 43 is connected to the second control valve 41 and the cold storage heat exchanger 4, and is used to control the flow state of the refrigerant in the cold storage heat exchanger 4, for example, to open or close the refrigerant flow path of the cold storage heat exchanger 4.

[0107] In this embodiment, the vehicle-mounted refrigeration system 1000 further includes a controller, which is connected to the first control valve 40, the second control valve 1, the first throttle switch 42, and the second throttle switch 43, and is used to control the on / off states of the first control valve 40, the second control valve 1, the first throttle switch 42, and the second throttle switch 43 according to the real-time status information of the vehicle.

[0108] Specifically, the controller can receive real-time vehicle status information and determine whether the refrigerator's full-power operating conditions are met based on this information. This information is then used to determine the refrigerant distribution strategy, control the on / off states of the first control valve 40, the second control valve 1, the first throttle switch 42, and the second throttle switch 43, and adjust the cold storage heat exchanger accordingly for cold energy storage / release. This ensures the onboard refrigeration equipment meets usage requirements while reducing energy consumption and improving the vehicle's overall range. A fifth aspect of the present invention also proposes a vehicle.

[0109] The vehicle in this embodiment of the invention includes the electronic equipment of the above embodiment, or the vehicle includes the vehicle-mounted refrigeration system of the above embodiment.

[0110] According to the vehicle of the present invention, by adopting the electronic equipment or vehicle cooling system of the above embodiments, energy consumption can be reduced and the vehicle range can be extended while meeting the requirements of vehicle cooling equipment.

[0111] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0112] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for controlling an on-board refrigeration system, characterized in that, The vehicle-mounted refrigeration system includes a vehicle-mounted refrigerator, the vehicle-mounted refrigerator includes a direct heat exchanger and a cold storage heat exchanger connected in parallel, and the method includes: The vehicle-mounted refrigerator has a cooling requirement; Based on the vehicle's real-time status information and the stored cold capacity of the cold storage heat exchanger, the operating modes of the direct heat exchanger and the cold storage heat exchanger are controlled. When the real-time status information meets the preset energy-saving trigger condition and the stored cold capacity of the cold storage heat exchanger exceeds the cold capacity threshold, the use priority of the cold storage heat exchanger is higher than that of the direct heat exchanger.

2. The method according to claim 1, characterized in that, The real-time status information includes the vehicle battery level; The preset energy-saving trigger condition includes the vehicle battery level being lower than a preset power threshold.

3. The method according to claim 1, characterized in that, The real-time status information includes ambient temperature; The preset energy-saving triggering conditions include an ambient temperature lower than a preset temperature threshold.

4. The method according to claim 1, characterized in that, The vehicle-mounted refrigeration system also includes a vehicle-mounted air conditioner, which shares a compressor with the vehicle-mounted refrigerator. The real-time status information includes the vehicle air conditioning usage demand signal and the target air conditioning temperature; The preset energy-saving triggering conditions include receiving the usage demand signal and the temperature difference between the target temperature of the air conditioner and the current ambient temperature being greater than a temperature difference threshold.

5. The method according to claim 1, characterized in that, The real-time status information includes vehicle battery temperature regulation demand signals; The preset energy-saving trigger condition includes detecting the vehicle battery temperature adjustment demand signal.

6. The method according to claim 2, characterized in that, Based on the vehicle's real-time status information and the stored cold capacity of the cold storage heat exchanger, the operating modes of the direct heat exchanger and the cold storage heat exchanger are controlled, further including: When the vehicle battery charge is greater than or equal to the preset charge threshold and the stored cold capacity has not reached its full value, the direct heat exchanger is in a refrigerant flow state for heat exchange, and the cold storage heat exchanger is in a refrigerant flow state or a non-refrigerant flow state for cold capacity storage, wherein the full value of the cold capacity is greater than the cold capacity threshold.

7. The method according to claim 2, characterized in that, Based on the vehicle's real-time status information and the stored cold capacity of the cold storage heat exchanger, the operating modes of the direct heat exchanger and the cold storage heat exchanger are controlled, further including: When the vehicle battery charge is greater than or equal to the preset charge threshold and the stored cold capacity reaches its full value, the direct heat exchanger is in a refrigerant flow state for heat exchange, and the cold storage heat exchanger is in a non-refrigerant flow state, wherein the full value of the cold capacity is greater than the cold capacity threshold.

8. The method according to claim 2, characterized in that, Based on the vehicle's real-time status information and the stored cold capacity of the cold storage heat exchanger, the operating modes of the direct heat exchanger and the cold storage heat exchanger are controlled, further including: When the vehicle battery charge is less than the preset charge threshold and the stored cold energy is less than the cold energy threshold, the direct heat exchanger is in a refrigerant flow state for heat exchange, and the cold storage heat exchanger is in a non-refrigerant flow state.

9. The method according to any one of claims 1-8, characterized in that, The cold storage heat exchanger includes a cold storage module and a heat exchanger module. The cold storage module is configured to absorb and store cold energy from the heat exchanger module when the heat exchanger module is in a refrigerant flow state, and to release the cold energy when the heat exchanger module is in a non-refrigerant flow state.

10. An electronic device, characterized in that, include: At least one processor; A memory that is communicatively connected to the at least one processor; The memory stores a computer program that can be executed by the at least one processor, and when the at least one processor executes the computer program, it implements the method for controlling the vehicle cooling system as described in any one of claims 1-9.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed, it implements the method for controlling the vehicle-mounted refrigeration system as described in any one of claims 1-9.

12. A vehicle-mounted refrigeration system, characterized in that, The system includes a vehicle-mounted refrigerator, which comprises a direct heat exchanger and a cold storage heat exchanger connected in parallel, wherein the direct heat exchanger and the cold storage heat exchanger operate based on the method for controlling the vehicle-mounted refrigeration system according to any one of claims 1-9.

13. The vehicle-mounted refrigeration system according to claim 12, characterized in that, The vehicle-mounted refrigeration system further includes a compressor, which is connected to the vehicle-mounted refrigerator and is used to compress the refrigerant and discharge it to the vehicle-mounted refrigerator.

14. The vehicle-mounted refrigeration system according to claim 13, characterized in that, The vehicle-mounted refrigeration system also includes a vehicle-mounted air conditioner, which is connected to the compressor.

15. The vehicle-mounted refrigeration system according to claim 14, characterized in that, The vehicle-mounted refrigeration system further includes a first control valve, which is connected to the compressor, the vehicle-mounted refrigerator, and the vehicle-mounted air conditioner, and is used to control the flow direction of the refrigerant discharged by the compressor.

16. The vehicle-mounted refrigeration system according to claim 15, characterized in that, The vehicle-mounted refrigerator also includes: The second control valve, which is connected to the first control valve, the direct heat exchanger, and the cold storage heat exchanger, is used to control the flow direction of the refrigerant inside the vehicle refrigerator.

17. The vehicle-mounted refrigeration system according to claim 16, characterized in that, The vehicle-mounted refrigerator also includes: A first throttle switch is connected to the second control valve and the direct heat exchanger to control the flow state of the refrigerant in the direct heat exchanger. The second throttle switch is connected to the second control valve and the cold storage heat exchanger, and is used to control the flow state of the refrigerant in the cold storage heat exchanger.

18. The vehicle-mounted refrigeration system according to claim 17, characterized in that, The vehicle-mounted refrigeration system also includes: The controller is connected to the first control valve, the second control valve, the first throttle switch, and the second throttle switch, and is used to control the on / off states of the first control valve, the second control valve, the first throttle switch, and the second throttle switch according to the real-time status information of the vehicle.

19. A vehicle, characterized in that, The vehicle includes the electronic device of claim 9, or the vehicle includes the on-board refrigeration system of any one of claims 12-18.

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