Vehicle thermal management system, control method, electronic device and vehicle

Abstract

The invention discloses a vehicle thermal management system, a control method, an electronic device and a vehicle, relates to the technical field of vehicle control, and aims to solve the problem of low thermal management efficiency of the vehicle in the prior art. The embodiment of the invention provides a vehicle heat management system. The vehicle heat management system comprises a compressor, a condenser, an air conditioner branch and at least one refrigerator branch. An outlet of the compressor communicates with an inlet of the condenser. The air conditioner branch comprises an air conditioner evaporator and a first expansion valve, an inlet of the first expansion valve communicates with an outlet of the condenser, an outlet of the first expansion valve communicates with an inlet of the air conditioner evaporator, and an outlet of the air conditioner evaporator communicates with an inlet of the compressor. The refrigerator branch comprises a refrigerator evaporator and a second expansion valve, an inlet of the second expansion valve is communicated with an outlet of the condenser, an outlet of the second expansion valve is communicated with an inlet of the refrigerator evaporator, and an outlet of the refrigerator evaporator is communicated with an inlet of the compressor. The vehicle thermal management system can be used for refrigeration.

Description

Technical Field

[0001] The present invention relates to the field of vehicle control technology, and in particular to a vehicle thermal management system, a control method, an electronic device and a vehicle. Background Art

[0002] The vehicle thermal management system is one of the important components of the vehicle. It can perform thermal management on the air-conditioning temperature in the cabin, the operating temperature of the battery system, and equipment such as the onboard refrigerator in the vehicle, thereby improving the riding experience of the driver and passengers.

[0003] In the related art, the onboard refrigerator of some vehicles is driven by an independent compressor, and the thermal management of the air conditioner and the battery system is not comprehensively considered, so the thermal management efficiency of the vehicle is not high. Summary of the invention

[0004] The present application provides a vehicle thermal management system, a control method, an electronic device and a vehicle, which are used to solve the problem of low thermal management efficiency of vehicles in the prior art.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, an embodiment of the present application provides a vehicle thermal management system, including: a compressor and a condenser, an air conditioning branch, and at least one refrigerator branch. The outlet of the compressor is connected to the inlet of the condenser. The air conditioning branch includes an air conditioning evaporator and a first expansion valve, the inlet of the first expansion valve is connected to the outlet of the condenser, the outlet of the first expansion valve is connected to the inlet of the air conditioning evaporator, and the outlet of the air conditioning evaporator is connected to the inlet of the compressor. The refrigerator branch includes a refrigerator evaporator and a second expansion valve, the inlet of the second expansion valve is connected to the outlet of the condenser, the outlet of the second expansion valve is connected to the inlet of the refrigerator evaporator, and the outlet of the refrigerator evaporator is connected to the inlet of the compressor.

[0007] The air conditioning branch and refrigerator branch in the vehicle thermal management system of the present application are connected in parallel and share a compressor and condenser. In this way, the allocation and management of the air conditioning and refrigerator refrigeration needs by the vehicle thermal management system can improve the efficiency of energy utilization, and the compressor can use energy more efficiently, thereby reducing the overall energy consumption of the vehicle. In addition, when the vehicle thermal management system has different refrigeration needs, the refrigeration mode of the air conditioner and refrigerator can be adjusted by adjusting the opening of the first expansion valve and the second expansion valve, thereby improving the orderly control of the vehicle thermal management system, thereby ensuring that heat is reasonably distributed and utilized, and improving the thermal management efficiency of the system.

[0008] In some embodiments, the vehicle thermal management system further includes at least one battery branch circuit, wherein the battery branch circuit includes a battery cold plate and a third expansion valve, wherein an inlet of the third expansion valve is connected to an outlet of the condenser, an outlet of the third expansion valve is connected to an inlet of the battery cold plate, and an outlet of the battery cold plate is connected to an inlet of the compressor.

[0009] In some embodiments, there are multiple battery branches.

[0010] In some embodiments, the battery branch further includes a fourth expansion valve, an inlet of the fourth expansion valve is connected to an outlet of the battery cold plate, and an outlet of the fourth expansion valve is connected to an outlet of the inlet of the compressor.

[0011] In some embodiments, there are multiple refrigerator branches, the inlets of the second expansion valves of the multiple refrigerator branches are connected to the outlet of the condenser, the outlets of the second expansion valves of the multiple refrigerator branches are connected to the inlet of the refrigerator evaporator, and the outlets of the refrigerator evaporators of the multiple refrigerator branches are connected to the inlet of the compressor.

[0012] In some embodiments, the vehicle thermal management system further comprises a coaxial tube. The coaxial tube comprises a central channel and an outer tube channel surrounding the central channel. The inlet of the central channel is connected to the outlet of the condenser, and the outlet of the central channel is connected to the inlet of the air conditioner evaporator and the refrigerator evaporator. The inlet of the outer tube channel is connected to the outlet of the air conditioner evaporator and the refrigerator evaporator, and the outlet of the outer tube channel is connected to the inlet of the compressor.

[0013] In some embodiments, the vehicle thermal management system further includes a coaxial tube. The coaxial tube includes a central channel and an outer tube channel surrounding the central channel. The inlet of the central channel is connected to the outlet of the condenser, and the outlet of the central channel is connected to the inlet of the air conditioner evaporator, the refrigerator evaporator, and the battery cold plate. The inlet of the outer tube channel is connected to the outlet of the air conditioner evaporator, the refrigerator evaporator, and the battery cold plate, and the outlet of the outer tube channel is connected to the inlet of the compressor.

[0014] In some embodiments, the vehicle thermal management system further comprises a liquid storage tank, an inlet of which is in communication with an outlet of the condenser, and an outlet of which is in communication with an inlet of the central channel.

[0015] In some embodiments, the vehicle thermal management system further includes a gas-liquid separator, the inlet of the gas-liquid separator is connected to the outlet of the outer tube channel, and the outlet of the gas-liquid separator is connected to the inlet of the compressor.

[0016] In some embodiments, the vehicle thermal management system further includes a controller, the controller being electrically connected to the first expansion valve and the second expansion valve. The controller is used to: obtain thermal management requirements of thermal management objects, the thermal management objects including a vehicle cabin and at least one refrigerator. Based on the thermal management requirements of the thermal management objects and the thermal management priorities of the thermal management objects, a thermal management operation is performed, the thermal management operation being used to adjust the operating pressure of the air conditioner evaporator and / or the refrigerator evaporator.

[0017] In some embodiments, the thermal management operation includes adjusting the opening of the first expansion valve and / or the second expansion valve to adjust the operating pressure of the air conditioner evaporator and / or the refrigerator evaporator.

[0018] In some embodiments, the vehicle thermal management system further includes a controller, the controller being electrically connected to the first expansion valve, the second expansion valve, and the third expansion valve, the controller being configured to:

[0019] Acquiring thermal management requirements of thermal management objects, where the thermal management objects include a vehicle cabin, at least one refrigerator, and at least one battery;

[0020] Based on the thermal management requirements of the thermal management object and the thermal management priority of the thermal management object, a thermal management operation is performed, and the thermal management operation is also used to adjust the operating pressure of the battery cold plate.

[0021] In some embodiments, the thermal management operation includes adjusting an opening of the third expansion valve to adjust an operating pressure of the battery cold plate.

[0022] In some embodiments, the controller performs thermal management operations based on the thermal management requirements of the thermal management object and the thermal management priority of the thermal management object, including: when the thermal management requirements of the battery meet the preset conditions, controlling the second expansion valve to close, and controlling the opening of the first expansion valve based on the thermal management requirements of the vehicle cabin, and adjusting the opening of the third expansion valve in the battery branch corresponding to the battery with cooling requirements based on the cooling gear of the battery. The preset conditions include: the thermal management requirements of the battery indicate that the battery has cooling requirements and the cooling gear of the battery is greater than the preset gear. Alternatively, the preset conditions include: the thermal management requirements of the battery indicate that the battery has cooling requirements and the number of battery cold plates with cooling requirements is greater than a preset number threshold.

[0023] Alternatively, when the thermal management requirements of the battery do not meet the preset conditions, the opening of the first expansion valve is controlled based on the thermal management requirements of the vehicle cabin, the opening of the second expansion valve is controlled based on the thermal management requirements of the refrigerator, and the opening of the third expansion valve in the battery branch corresponding to the battery with cooling requirements is adjusted based on the cooling gear of the battery.

[0024] Alternatively, when the thermal management requirement of the battery indicates that the battery has no cooling requirement, the opening of the first expansion valve is controlled based on the thermal management requirement of the vehicle cabin, the opening of the second expansion valve is controlled based on the thermal management requirement of the refrigerator, and the third expansion valve is controlled to be closed.

[0025] In some embodiments, the vehicle thermal management system further includes an ambient temperature sensor for detecting the ambient temperature outside the vehicle. The controller controls the opening of the first expansion valve based on the thermal management requirements of the vehicle cabin, including: controlling the opening of the first expansion valve based on the thermal management requirements of the vehicle cabin and the ambient temperature outside the vehicle.

[0026] In some embodiments, the controller controls the opening of the first expansion valve based on the thermal management demand of the vehicle cabin and the ambient temperature outside the vehicle, including: when the thermal management demand of the vehicle cabin indicates that the vehicle cabin has a cooling demand, and the ambient temperature outside the vehicle is greater than a preset temperature value, the opening of the first expansion valve is controlled based on the target cooling temperature of the cooling demand. Alternatively, when the thermal management demand of the vehicle cabin indicates that the vehicle cabin has a cooling demand, and the ambient temperature outside the vehicle is less than or equal to the preset temperature value, the first expansion valve is controlled to be closed. When the thermal management demand of the vehicle cabin indicates that the vehicle cabin does not have a cooling demand, the first expansion valve is controlled to be closed.

[0027] In some embodiments, the controller controls the opening of the second expansion valve based on the thermal management demand of the refrigerator, including controlling the opening of the second expansion valve based on the target refrigeration temperature of the refrigeration demand when the thermal management demand of the refrigerator indicates that the refrigerator has a refrigeration demand. Alternatively, when the thermal management demand of the refrigerator indicates that the refrigerator does not have a refrigeration demand, the second expansion valve is controlled to be closed.

[0028] In a second aspect, an embodiment of the present application provides a vehicle thermal management system, including: a compressor, a condenser, at least one battery branch, and at least one refrigerator branch. The outlet of the compressor is connected to the inlet of the condenser. The battery branch includes a battery cold plate and a third expansion valve, the inlet of the third expansion valve is connected to the outlet of the condenser, the inlet of the battery cold plate is connected to the outlet of the third expansion valve, and the outlet of the battery cold plate is connected to the inlet of the compressor. The refrigerator branch includes a refrigerator evaporator and a second expansion valve, the inlet of the second expansion valve is connected to the outlet of the condenser, the outlet of the second expansion valve is connected to the inlet of the refrigerator evaporator, and the outlet of the refrigerator evaporator is connected to the inlet of the compressor.

[0029] In some embodiments, the vehicle thermal management system includes a controller, the controller is electrically connected to the second expansion valve and the third expansion valve. The controller is used to: obtain the thermal management requirements of the thermal management object, the thermal management object includes at least one battery and at least one refrigerator. Based on the thermal management requirements of the thermal management object and the thermal management priority of the thermal management object, a thermal management operation is performed, and the thermal management operation is used to adjust the operating pressure of the battery cold plate and / or the refrigerator evaporator.

[0030] In some embodiments, the thermal management operation includes adjusting the opening of the second expansion valve and / or the third expansion valve to adjust the operating pressure of the battery cold plate and / or the refrigerator evaporator.

[0031] In some embodiments, the controller performs a thermal management operation based on the thermal management demand of the thermal management object and the thermal management priority of the thermal management object, including: when the thermal management demand of the battery meets the preset condition, adjusting the opening of the third expansion valve in the battery branch corresponding to the battery with cooling demand based on the cooling gear of the battery, and closing the second expansion valve. The preset condition includes: the thermal management demand of the battery indicates that the battery has a cooling demand and the cooling gear of the battery is greater than the preset gear. Alternatively, the preset condition includes: the thermal management demand of the battery indicates that the battery has a cooling demand and the number of battery cold plates with cooling demand is greater than a preset number threshold.

[0032] Alternatively, when the thermal management requirements of the battery do not meet the preset conditions, the opening of the second expansion valve is controlled based on the thermal management requirements of the refrigerator, and the opening of the third expansion valve in the battery branch corresponding to the battery with cooling requirements is adjusted based on the cooling gear of the battery.

[0033] In some embodiments, the vehicle thermal management system further includes: an ambient temperature sensor, the ambient temperature sensor is used to detect the ambient temperature outside the vehicle. The controller controls the opening of the second expansion valve based on the thermal management requirements of the refrigerator, including: controlling the opening of the second expansion valve and the third expansion valve based on the thermal management requirements of the refrigerator and the ambient temperature outside the vehicle.

[0034] In a third aspect, an embodiment of the present application provides a control method for controlling the above-mentioned vehicle thermal management system, including:

[0035] A thermal management requirement of a thermal management object is obtained, where the thermal management object includes a vehicle cabin and at least one refrigerator.

[0036] Based on the thermal management requirements of the thermal management objects and the thermal management priorities of the thermal management objects, a thermal management operation is performed, where the thermal management operation is used to adjust the operating pressure of the air conditioner evaporator and / or the refrigerator evaporator.

[0037] In some embodiments, the thermal management operation includes adjusting the opening of the first expansion valve and / or the second expansion valve to adjust the operating pressure of the air conditioner evaporator and / or the refrigerator evaporator.

[0038] In some embodiments, the vehicle thermal management system further includes at least one battery branch, the battery branch includes a battery cold plate and a third expansion valve, the inlet of the third expansion valve is connected to the outlet of the condenser, the outlet of the third expansion valve is connected to the inlet of the battery cold plate, and the outlet of the battery cold plate is connected to the inlet of the compressor. The thermal management object also includes at least one battery. The thermal management operation is also used to adjust the operating pressure of the battery cold plate.

[0039] In some embodiments, the thermal management operation includes adjusting an opening of the third expansion valve to adjust an operating pressure of the battery cold plate.

[0040] In some embodiments, based on the thermal management requirements of the thermal management object and the thermal management priority of the thermal management object, a thermal management operation is performed, including: when the thermal management requirements of the battery meet the preset conditions, the second expansion valve is controlled to be closed, and the opening of the first expansion valve is controlled based on the thermal management requirements of the vehicle cabin, and the opening of the third expansion valve in the battery branch corresponding to the battery with cooling requirements is adjusted based on the cooling gear of the battery. Wherein, the preset conditions include: the thermal management requirements of the battery indicate that the battery has cooling requirements and the cooling gear of the battery is greater than the preset gear. Alternatively, the preset conditions include: the thermal management requirements of the battery indicate that the battery has cooling requirements and the number of battery cold plates with cooling requirements is greater than a preset number threshold.

[0041] Alternatively, when the thermal management requirements of the battery do not meet the preset conditions, the opening of the first expansion valve is controlled based on the thermal management requirements of the vehicle cabin, the opening of the second expansion valve is controlled based on the thermal management requirements of the refrigerator, and the opening of the third expansion valve in the battery branch corresponding to the battery with cooling requirements is adjusted based on the cooling gear of the battery.

[0042] Alternatively, when the thermal management requirement of the battery indicates that the battery has no cooling requirement, the opening of the first expansion valve is controlled based on the thermal management requirement of the vehicle cabin, the opening of the second expansion valve is controlled based on the thermal management requirement of the refrigerator, and the third expansion valve is controlled to be closed.

[0043] In some embodiments, the control method further includes: obtaining an ambient temperature outside the vehicle. Controlling the opening of the first expansion valve based on the thermal management requirements of the vehicle cabin includes: controlling the opening of the first expansion valve based on the thermal management requirements of the vehicle cabin and the ambient temperature outside the vehicle.

[0044] In some embodiments, controlling the opening of the first expansion valve based on the thermal management demand of the vehicle cabin and the ambient temperature outside the vehicle includes: when the thermal management demand of the vehicle cabin indicates that the vehicle cabin has a cooling demand and the ambient temperature outside the vehicle is greater than a preset temperature value, controlling the opening of the first expansion valve based on the target cooling temperature of the cooling demand. Alternatively, when the thermal management demand of the vehicle cabin indicates that the vehicle cabin has a cooling demand and the ambient temperature outside the vehicle is less than or equal to the preset temperature value, controlling the first expansion valve to close. When the thermal management demand of the vehicle cabin indicates that the vehicle cabin does not have a cooling demand, controlling the first expansion valve to close.

[0045] In some embodiments, controlling the opening of the second expansion valve based on the thermal management demand of the refrigerator includes: when the thermal management demand of the refrigerator indicates that the refrigerator has a refrigeration demand, controlling the opening of the second expansion valve based on a target refrigeration temperature of the refrigeration demand. Alternatively, when the thermal management demand of the refrigerator indicates that the refrigerator does not have a refrigeration demand, controlling the expansion valve to close.

[0046] In a fourth aspect, an embodiment of the present application provides a control method for controlling the above-mentioned vehicle thermal management system, comprising: obtaining thermal management requirements of thermal management objects, the thermal management objects comprising at least one battery and at least one refrigerator. Based on the thermal management requirements of the thermal management objects and the thermal management priorities of the thermal management objects, a thermal management operation is performed, and the thermal management operation is used to adjust the operating pressure of the battery cold plate and / or the refrigerator evaporator.

[0047] In some embodiments, the thermal management operation includes adjusting the opening of the second expansion valve and / or the third expansion valve to adjust the operating pressure of the battery cold plate and / or the refrigerator evaporator.

[0048] In some embodiments, based on the thermal management requirement of the thermal management object and the thermal management priority of the thermal management object, performing a thermal management operation includes:

[0049] When the thermal management demand of the battery meets the preset conditions, the opening of the third expansion valve in the battery branch corresponding to the battery with cooling demand is adjusted based on the cooling gear of the battery, and the second expansion valve is closed. The preset conditions include: the thermal management demand of the battery indicates that the battery has cooling demand and the refrigeration gear of the battery is greater than the preset gear. Alternatively, the preset conditions include: the thermal management demand of the battery indicates that the battery has cooling demand and the number of battery cold plates with cooling demand is greater than a preset number threshold. Alternatively, when the thermal management demand of the battery does not meet the preset conditions, the opening of the second expansion valve is controlled based on the thermal management demand of the refrigerator, and the opening of the third expansion valve in the battery branch corresponding to the battery with cooling demand is adjusted based on the cooling gear of the battery.

[0050] In some embodiments, the control method further includes: obtaining the ambient temperature outside the vehicle. Controlling the opening of the second expansion valve based on the thermal management requirements of the refrigerator includes: controlling the openings of the second expansion valve and the third expansion valve based on the thermal management requirements of the refrigerator and the ambient temperature outside the vehicle.

[0051] In a fifth aspect, an embodiment of the present application provides an electronic device, including a processor and a memory, wherein the processor is connected to the memory, and the memory stores computer instructions. When the computer instructions are executed on the electronic device, the electronic device executes the method as described above.

[0052] In a sixth aspect, an embodiment of the present application provides a vehicle, including the above-mentioned vehicle thermal management system and / or including the above-mentioned electronic device. The technical effects brought about by any implementation method in the above-mentioned second to sixth aspects can refer to the technical effects brought about by the corresponding implementation method in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a flow chart of the control logic of a vehicle refrigerator in the prior art;

[0054] Figure 2 A schematic diagram of the structure of a vehicle thermal management system provided in an embodiment of the present application;

[0055] Figure 3 A schematic diagram of the flow of refrigerant for air conditioning refrigeration in a vehicle thermal management system provided in an embodiment of the present application;

[0056] Figure 4 A schematic diagram of the flow of refrigerant for refrigerator refrigeration in a vehicle thermal management system provided in an embodiment of the present application;

[0057] Figure 5 A schematic diagram of the flow of refrigerant for battery cooling in a vehicle thermal management system provided in an embodiment of the present application;

[0058] Figure 6 For this application Figure 2 Schematic diagram of the structure of the coaxial tube;

[0059] Figure 7 A schematic flow chart of a control method for refrigerating a vehicle cabin and a refrigerator provided by a vehicle thermal management system according to an embodiment of the present application;

[0060] Figure 8 A vehicle thermal management system provided in an embodiment of the present application is a control logic flow diagram of a vehicle cabin and a refrigerator;

[0061] Fig. 9 The vehicle thermal management system provided in the embodiment of the present application is a control logic flow diagram of the vehicle cabin, refrigerator and air conditioning refrigeration;

[0062] Fig.10 A schematic flow chart of a control method for battery and refrigerator refrigeration in a vehicle thermal management system provided in an embodiment of the present application;

[0063] Fig.11 The vehicle thermal management system provided in the embodiment of the present application is a control logic flow diagram of a battery and a refrigerator.

[0064] Reference numerals:

[0065] 100. Vehicle thermal management system; 10. Compressor; 20. Condenser; 30. Air conditioning branch; 31. Air conditioning evaporator; 32. First expansion valve; 40. Refrigerator branch; 41. Refrigerator evaporator; 42. Second expansion valve; 50. Battery branch; 51. Battery cold plate; 52. Third expansion valve; 53. Fourth expansion valve; 60. Coaxial tube; 61. Center channel; 62. Outer tube channel; 70. Liquid storage tank; 80. Gas-liquid separator; 90. Heating branch; 91. In-vehicle condenser; 92. Fifth expansion valve; 93. Plate heat exchanger; 94. Four-way valve; 95. Motor radiator; 96. Powertrain; 97. Water pump. DETAILED DESCRIPTION

[0066] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0067] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0068] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0069] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, when describing pipelines or channels, the "connected" and "connected" used in this application have the meaning of conduction. The specific meaning needs to be understood in conjunction with the context.

[0070] In the embodiments of the present application, the words "exemplarily" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplarily" or "for example" is intended to present related concepts in a specific way.

[0071] The vehicle thermal management system is one of the important components of the vehicle. It can perform thermal management on the air-conditioning temperature in the cabin, the operating temperature of the battery system, and equipment such as the onboard refrigerator in the vehicle, thereby improving the riding experience of the driver and passengers.

[0072] A car refrigerator is a refrigerator that can be carried in a vehicle. It is mainly used to keep food and drinks fresh and cool in the vehicle. It can provide refrigeration and heat preservation functions, is portable and convenient, and can help preserve food during long-distance travel, camping or outdoor activities.

[0073] In the related art, see Figure 1 , Figure 1 The present invention is a flow chart of the control logic of a vehicle refrigerator in the prior art. The prior art provides a control method for a vehicle refrigerator. When the system detects a new load in the refrigerator, the refrigerator automatically responds to the extreme cooling mode to quickly cool the new load to prevent the new load from causing the temperature of other items in the refrigerator to rise. At the same time, the number of responses is limited. If the extreme cooling response exceeds the limit multiple times, it will no longer be executed.

[0074] However, this control method also only considers the cooling needs of a single vehicle refrigerator, and does not consider the thermal management needs of air conditioners and batteries, resulting in a high overall energy consumption of the vehicle. At the same time, the energy distribution method and the scenarios considered for the entire vehicle are not comprehensive enough, and the thermal management efficiency of the vehicle is not high.

[0075] Based on this, the present application provides a vehicle, including a vehicle thermal management system 100. It should be noted that the vehicle thermal management system 100 can be used for cooling the vehicle or heating the vehicle. The present application takes the vehicle thermal management system 100 for cooling the vehicle as an example for explanation.

[0076] For details, see Figure 2 , Figure 2 The vehicle thermal management system 100 is a schematic diagram of the structure of the vehicle thermal management system provided in the embodiment of the present application. The vehicle thermal management system 100 includes: a compressor 10 and a condenser 20, an air conditioning branch 30 and at least one refrigerator branch 40. The outlet of the compressor 10 is connected to the inlet of the condenser 20.

[0077] The air conditioning branch 30 includes an air conditioning evaporator 31 and a first expansion valve 32 , the inlet of the first expansion valve 32 is connected to the outlet of the condenser 20 , the outlet of the first expansion valve 32 is connected to the inlet of the air conditioning evaporator 31 , and the outlet of the air conditioning evaporator 31 is connected to the inlet of the compressor 10 .

[0078] The refrigerator branch 40 includes a refrigerator evaporator 41 and a second expansion valve 42 , the inlet of the second expansion valve 42 is connected to the outlet of the condenser 20 , the outlet of the second expansion valve 42 is connected to the inlet of the refrigerator evaporator 41 , and the outlet of the refrigerator evaporator 41 is connected to the inlet of the compressor 10 .

[0079] It can be understood that during the refrigeration cycle, the outlet of the compressor 10 is connected to the inlet of the condenser 20. After the compressor 10 starts working, the refrigerant is compressed into a high-temperature and high-pressure gas. The high-temperature and high-pressure gas releases heat through the condenser 20 and becomes a high-pressure supercooled liquid refrigerant.

[0080] See also Figure 3 , Figure 3 The vehicle thermal management system provided in the embodiment of the present application is a refrigerant flow diagram for air conditioning refrigeration. During air conditioning refrigeration, the high-pressure supercooled liquid refrigerant passes through the first expansion valve 32, and is throttled and reduced in pressure to become a low-pressure supercooled liquid refrigerant. The low-pressure supercooled liquid refrigerant absorbs heat and evaporates in the air-conditioning evaporator 31, and returns to the compressor 10 to enter the next cycle.

[0081] See also Figure 4 , Figure 4 The vehicle thermal management system provided in the embodiment of the present application is a refrigerant flow diagram for refrigerator refrigeration. When the refrigerator is refrigerating, the high-pressure supercooled liquid refrigerant passes through the second expansion valve 42, and is throttled and reduced in pressure to become a low-pressure supercooled liquid refrigerant. The low-pressure supercooled liquid refrigerant absorbs heat and evaporates in the refrigerator evaporator 41, and returns to the compressor 10 to enter the next cycle.

[0082] In this way, the air conditioning branch 30 and the refrigerator branch 40 in the vehicle thermal management system 100 are connected in parallel, and share a compressor 10 and a condenser 20. In this way, the vehicle thermal management system 100 can improve the energy utilization efficiency by allocating and managing the cooling needs of the air conditioner and the refrigerator, and the compressor 10 can use energy more efficiently, thereby reducing the overall energy consumption of the vehicle.

[0083] In addition, when the vehicle thermal management system 100 has different cooling requirements, the cooling modes of the air conditioner and the refrigerator can be adjusted by adjusting the opening of the first expansion valve 32 and the second expansion valve 42, thereby improving the orderly control of the vehicle thermal management system 100, thereby ensuring that heat is reasonably distributed and utilized, and improving the thermal management efficiency of the system.

[0084] In some embodiments, the vehicle thermal management system 100 further includes at least one battery branch 50. The battery branch 50 includes a battery cold plate 51 and a third expansion valve 52, wherein the inlet of the third expansion valve 52 is connected to the outlet of the condenser 20, the outlet of the third expansion valve 52 is connected to the inlet of the battery cold plate 51, and the outlet of the battery cold plate 51 is connected to the inlet of the compressor 10.

[0085] Understandably, see Figure 5 , Figure 5 The vehicle thermal management system provided in the embodiment of the present application is a schematic diagram of the refrigerant flow for battery cooling. During the refrigeration cycle, the outlet of the compressor 10 is connected to the inlet of the condenser 20. After the compressor 10 starts working, the refrigerant is compressed into a high-temperature and high-pressure gas. The high-temperature and high-pressure gas releases heat through the condenser 20 and becomes a high-pressure supercooled liquid refrigerant. After the high-pressure supercooled liquid refrigerant passes through the third expansion valve 52, it is throttled and reduced in pressure to become a low-pressure supercooled liquid refrigerant. The low-pressure supercooled liquid refrigerant absorbs heat and evaporates in the battery cold plate 51, and returns to the compressor 10 again to enter the next cycle.

[0086] In this way, the air conditioning branch 30, refrigerator branch 40 and battery branch 50 in the vehicle thermal management system 100 are connected in parallel, and share a compressor 10 and condenser 20. In this way, the heat of the air conditioning, refrigerator and battery system can be distributed and managed through the vehicle thermal management system 100, which can improve energy utilization efficiency, and the compressor 10 can use energy more efficiently, thereby reducing the overall energy consumption of the vehicle.

[0087] It should be noted that the number of battery branches 50 can be one or more, which is not limited in the present application and is set according to actual conditions.

[0088] For example, the present application is described by taking two battery branches 50 as an example. In this way, two battery branches 50 are provided with two battery cold plates 51, and different cooling modes can be selected according to the operating conditions of the battery, thereby improving the cooling efficiency of the battery and improving the safety of the battery.

[0089] In some embodiments, the battery branch 50 further includes a fourth expansion valve 53 , an inlet of the fourth expansion valve 53 is connected to an outlet of the battery cold plate 51 , and an outlet of the fourth expansion valve 53 is connected to an outlet of an inlet of the compressor 10 .

[0090] In this way, the inlet of the battery cold plate 51 is provided with a third expansion valve 52, and the outlet of the battery cold plate 51 is provided with a fourth expansion valve 53. The refrigerant flow rate at the inlet side of the battery cold plate 51 can be adjusted by the third expansion valve 52. The two third expansion valves 52 can adjust the refrigerant flow rate to be inconsistent according to the different needs of the two battery cold plates 51 to meet the cooling needs of the batteries. The two fourth expansion valves 53 can adjust the evaporation pressure of the refrigerant flowing out of the two battery cold plates 51 to be consistent, so that the evaporation pressure of the refrigerant at the junction of the branches in the pipeline is consistent, which can make the operation of the vehicle thermal management system 100 more stable.

[0091] It is understandable that if two fourth expansion valves 53 are not provided, in order to ensure the stable operation of the vehicle thermal management system 100, the outlet pressures of the two battery branches 50 need to be consistent, that is, the refrigerant flow rates flowing through the two battery cold plates 51 need to be equal. After two fourth expansion valves 53 are provided, the refrigerant flow rates flowing through the two battery cold plates 51 can be adjusted to be unequal according to actual conditions.

[0092] In some embodiments, there are multiple refrigerator branches 40, the inlets of the second expansion valves 42 of the multiple refrigerator branches 40 are all connected to the outlet of the condenser 20, the outlets of the second expansion valves 42 of the multiple refrigerator branches 40 are all connected to the inlet of the refrigerator evaporator 41, and the outlets of the refrigerator evaporators 41 of the multiple refrigerator branches 40 are all connected to the inlet of the compressor 10.

[0093] In this way, the multiple refrigerator branches 40 can adjust the refrigerator evaporator 41 through the second expansion valve 42 respectively. In this way, if a refrigerator is set in the car, the temperature inside the refrigerator can be divided into zones, and the temperatures of different zones can be set separately, which is conducive to improving the user experience. If multiple refrigerators are set in the car, the temperatures of multiple refrigerators can be controlled separately. It should be noted that the number of refrigerator branches 40 is limited, and can be set according to the actual needs.

[0094] For example, the present application is described with two refrigerator branches 40. In this way, two refrigerators can be arranged in the vehicle, and the two refrigerators are arranged in the front and rear rows respectively, and the temperatures of the two refrigerators can be regulated respectively through the two refrigerator branches 40.

[0095] In some embodiments, see again Figure 2 The vehicle thermal management system 100 further includes a heating branch 90. The heating branch 90 includes an in-vehicle condenser 91, a fifth expansion valve 92, and a plate heat exchanger 93. The inlet of the in-vehicle condenser 91 is connected to the compressor 10, the outlet of the in-vehicle condenser 91 is connected to the inlet of the fifth expansion valve 92, the outlet of the fifth expansion valve 92 is connected to the plate heat exchanger 93, and the outlet of the plate heat exchanger 93 is connected to the inlet of the compressor 10.

[0096] During the heating cycle, the outlet of the compressor 10 is connected to the inlet of the in-vehicle condenser 91. After the compressor 10 starts working, it compresses the refrigerant into high-temperature and high-pressure gas. The high-temperature and high-pressure gas releases heat through the in-vehicle condenser 91 and becomes a high-pressure subcooled liquid refrigerant. After the high-pressure subcooled liquid refrigerant passes through the fifth expansion valve 92, it is throttled and reduced in pressure to become a low-pressure subcooled liquid refrigerant. The low-pressure subcooled liquid refrigerant absorbs heat and evaporates in the plate heat exchanger 93, and returns to the compressor 10 again to enter the next cycle.

[0097] In addition, another circulation loop in the plate heat exchanger 93 includes a four-way valve 94, a motor radiator 95, a power assembly 96, and a water pump 97. That is, the refrigerant in the circulation loop absorbs heat in the motor radiator 95 and dissipates heat in the plate heat exchanger 93.

[0098] In some embodiments, the vehicle thermal management system 100 further includes a coaxial tube 60. The coaxial tube 60 includes a central channel 61 and an outer tube channel 62 surrounding the central channel. The inlet of the central channel 61 is connected to the outlet of the condenser 20, and the outlet of the central channel 61 is connected to the inlet of the air conditioner evaporator 31 and the refrigerator evaporator 41. The inlet of the outer tube channel 62 is connected to the outlet of the air conditioner evaporator 31 and the refrigerator evaporator 41, and the outlet of the outer tube channel 62 is connected to the inlet of the compressor 10.

[0099] In this way, by providing the coaxial tube 60 , the pipeline layout of the vehicle thermal management system 100 can be made simpler and more compact, thus saving space inside the vehicle.

[0100] In some embodiments, see Figure 2 Combined with Figure 6 , Figure 6 For this application Figure 2Schematic diagram of the structure of the coaxial tube in the vehicle thermal management system 100, the vehicle thermal management system 100 also includes a coaxial tube 60. The coaxial tube 60 includes a central channel 61 and an outer tube channel 62 surrounding the central channel. The inlet of the central channel 61 is connected to the outlet of the condenser 20, and the outlet of the central channel 61 is connected to the inlet of the air-conditioning evaporator 31, the refrigerator evaporator 41 and the battery cold plate 51. The inlet of the outer tube channel 62 is connected to the outlet of the air-conditioning evaporator 31, the refrigerator evaporator 41 and the battery cold plate 51, and the outlet of the outer tube channel 62 is connected to the inlet of the compressor 10.

[0101] Thus, by providing the coaxial tube 60, the pipeline layout of the vehicle thermal management system 100 can be made simpler and more compact, saving space in the vehicle. In addition, through the design of the central channel 61 and the outer tube channel 62, the refrigerant can exchange heat with the central channel 61 through the outer tube channel 62 before returning to the compressor 10, thereby reducing the refrigerant temperature at the inlet of the compressor 10, thereby improving the working efficiency of the compressor 10.

[0102] In some embodiments, the vehicle thermal management system 100 further includes a liquid storage tank 70 . The inlet of the liquid storage tank 70 is communicated with the outlet of the condenser 20 , and the outlet of the liquid storage tank 70 is communicated with the inlet of the central channel 61 .

[0103] Since the vehicle thermal management system 100 includes an air conditioning branch 30, a refrigerator branch 40, and a battery branch 50, the demand for refrigerant is different in different cooling modes. By providing a liquid storage tank 70, the excess refrigerant in the vehicle thermal management system 100 can be stored to adapt to different cooling modes.

[0104] In some embodiments, the vehicle thermal management system 100 further includes a gas-liquid separator 80 , the inlet of the gas-liquid separator 80 is communicated with the outlet of the outer tube channel 62 , and the outlet of the gas-liquid separator 80 is communicated with the inlet of the compressor 10 .

[0105] In this way, the refrigerant passes through the gas-liquid separator 80 before entering the inlet of the compressor 10. The gas-liquid separator 80 can effectively separate the mixed gaseous and liquid refrigerants, ensuring that the refrigerant entering the compressor 10 is in a gaseous state, avoiding damage to the compressor 10 and extending the service life of the compressor 10.

[0106] In some embodiments, the vehicle thermal management system 100 further includes: a controller, the controller being electrically connected to the first expansion valve 32 and the second expansion valve 42. The controller is used to: obtain the thermal management requirements of the thermal management objects, the thermal management objects including the vehicle cabin and at least one refrigerator. Based on the thermal management requirements of the thermal management objects and the thermal management priorities of the thermal management objects, a thermal management operation is performed, and the thermal management operation is used to adjust the opening of the operating pressure of the air conditioner evaporator 31 and / or the refrigerator evaporator 41.

[0107] It is understandable that the vehicle cabin can be thermally managed by adjusting the air conditioning branch 30 .

[0108] In this way, the controller can obtain the thermal management requirements of the vehicle cabin and refrigerator, and perform thermal management operations based on these requirements and set priorities. This intelligent control system can ensure that heat is reasonably distributed and utilized, improving the thermal management efficiency of the system.

[0109] In addition, by adjusting the operating pressure of the air-conditioning evaporator 31 and / or the refrigerator evaporator 41 according to the thermal management requirements and priorities of the thermal management objects, the vehicle thermal management system 100 can more accurately control the operation of the equipment, thereby achieving energy efficiency optimization, reducing energy consumption, and improving the overall performance of the vehicle thermal management system 100.

[0110] It should be noted that the present application does not limit the number of refrigerators. For example, the number of refrigerators can be one or two.

[0111] It is understandable that the controller may obtain the thermal management requirements of the thermal management object by receiving air conditioning switch signals and refrigerator switch signals from the main control board, or by receiving battery cooling signals from the battery management system.

[0112] In some embodiments, the thermal management operation includes adjusting the opening degree of the first expansion valve 32 to adjust the operating pressure of the air-conditioning evaporator 31 .

[0113] In this way, the air conditioning evaporator 31 can be closed or opened by adjusting the opening degree of the first expansion valve 32 , and the operating pressure of the air conditioning evaporator 31 can also be adjusted to adjust the temperature in the vehicle cabin.

[0114] In some other embodiments, the thermal management operation includes adjusting the opening degree of the second expansion valve 42 to adjust the operating pressure of the refrigerator evaporator 41 .

[0115] In this way, the refrigerator evaporator 41 can be closed or opened by adjusting the opening degree of the second expansion valve 42, and the operating pressure of the refrigerator evaporator 41 can also be adjusted to adjust the temperature in the refrigerator.

[0116] In some embodiments, the controller performs thermal management operations based on the thermal management requirements of the thermal management object and the thermal management priority of the thermal management object, including: when the thermal management requirements of the battery meet preset conditions, controlling the second expansion valve 42 to close, and controlling the opening of the first expansion valve 32 based on the thermal management requirements of the vehicle cabin, and adjusting the opening of the third expansion valve 52 in the battery branch 50 corresponding to the battery with cooling requirements based on the cooling gear of the battery.

[0117] The preset conditions include: the thermal management requirement of the battery indicates that the battery has a cooling requirement and the battery cooling gear is greater than a preset gear. Alternatively, the preset conditions include: the thermal management requirement of the battery indicates that the battery has a cooling requirement and the number of battery cold plates 51 with cooling requirements is greater than a preset number threshold.

[0118] It should be noted that the battery includes a battery management system, which can monitor the battery temperature through a temperature sensor provided in the battery and determine the cooling level of the battery according to the battery temperature. At the same time, the battery management system can also monitor the number of battery cold plates 51 that have cooling requirements.

[0119] Exemplarily, the present application is described by taking the case where the number of cooling levels of the battery is set to 3 and the number of the battery cold plates 51 is two.

[0120] The thermal management priority of the thermal management object can be set to that the thermal management priority of the battery cooling gear is three gears or the number of battery cold plates 51 used is two is greater than the thermal management priority of the vehicle cabin, and the thermal management priority of the battery cooling gear is three gears or the number of battery cold plates 51 used is two is greater than the thermal management priority of the refrigerator.

[0121] In this way, when the thermal management demand of the battery meets the third gear of the battery cooling gear or the battery cold plate 51 is double-plate cooling, the second expansion valve 42 is controlled to be closed, and the opening of the first expansion valve 32 is controlled based on the thermal management demand of the vehicle cabin, and the opening of the third expansion valve 52 in the battery branch 50 corresponding to the battery with cooling demand is adjusted based on the cooling gear of the battery. In other words, when the cooling demand of the battery is high, the vehicle thermal management system 100 gives priority to meeting the cooling demand of the battery and the cooling demand of the vehicle cabin, and the refrigerator can be closed first.

[0122] In some other embodiments, when the thermal management requirements of the battery do not meet the preset conditions, the opening of the first expansion valve 32 is controlled based on the thermal management requirements of the vehicle cabin, the opening of the second expansion valve 42 is controlled based on the thermal management requirements of the refrigerator, and the opening of the third expansion valve 52 in the battery branch 50 corresponding to the battery with cooling requirements is adjusted based on the cooling gear of the battery.

[0123] In this way, when the thermal management demand of the battery does not meet the condition that the battery cooling gear is in the third gear or the battery cold plate 51 is double-plate cooling, the opening of the first expansion valve 32 is controlled based on the thermal management demand of the vehicle cabin, the opening of the second expansion valve 42 is controlled based on the thermal management demand of the refrigerator, and the opening of the third expansion valve 52 in the battery branch 50 corresponding to the battery with cooling demand is adjusted based on the battery cooling gear. In other words, when the battery cooling demand is low, the vehicle thermal management system 100 can meet the battery cooling demand, the refrigerator cooling demand and the vehicle cabin cooling demand according to actual conditions.

[0124] For example, when the vehicle has cooling requirements for the vehicle cabin and the refrigerator, and also has cooling requirements for the battery, the vehicle thermal management system 100 may first close the second expansion valve 42 and the third expansion valve 52, and after the temperature of the vehicle cabin reaches the preset temperature, open the second expansion valve 42 and the third expansion valve 52, and switch to a cooling mode in which the battery, refrigerator, and vehicle cabin are cooled simultaneously. For another example, when the vehicle has cooling requirements for the vehicle cabin and the battery, and also has cooling requirements for the refrigerator, the vehicle thermal management system 100 may switch to a cooling mode in which the battery, refrigerator, and vehicle cabin are cooled simultaneously. For another example, when the vehicle has cooling requirements for the refrigerator and the battery, and also has cooling requirements for the vehicle cabin, the vehicle thermal management system 100 may first close the third expansion valve 52, and after the temperature of the vehicle cabin reaches the preset temperature, open the third expansion valve 52, and switch to a cooling mode in which the battery, refrigerator, and vehicle cabin are cooled simultaneously.

[0125] In some other embodiments, when the thermal management requirement of the battery indicates that the battery has no cooling requirement, the opening of the first expansion valve 32 is controlled based on the thermal management requirement of the vehicle cabin, the opening of the second expansion valve 42 is controlled based on the thermal management requirement of the refrigerator, and the third expansion valve 52 is controlled to be closed.

[0126] In this way, when there is no need for battery cooling, the opening of the first expansion valve 32 is controlled based on the thermal management requirements of the vehicle cabin, the opening of the second expansion valve 42 is controlled based on the thermal management requirements of the refrigerator, and the third expansion valve 52 is controlled to be closed. In other words, when there is no need for battery cooling, the vehicle thermal management system 100 can meet the refrigeration requirements of the refrigerator and the cooling requirements of the vehicle cabin according to actual conditions.

[0127] In some embodiments, the vehicle thermal management system 100 further includes an ambient temperature sensor for detecting the ambient temperature outside the vehicle. The controller controls the opening of the first expansion valve 32 based on the thermal management requirements of the vehicle cabin, including: controlling the opening of the first expansion valve 32 based on the thermal management requirements of the vehicle cabin and the ambient temperature outside the vehicle.

[0128] In this way, if the ambient temperature outside the vehicle is low, the first expansion valve 32 can be closed, and by opening the external circulation, the cold air outside the vehicle can be circulated into the vehicle to reduce the temperature inside the vehicle. This can save energy and improve the utilization rate of heat.

[0129] In some embodiments, the controller controls the opening of the first expansion valve 32 based on the thermal management requirements of the vehicle cabin and the ambient temperature outside the vehicle, including: when the thermal management requirements of the vehicle cabin indicate that the vehicle cabin has a cooling requirement, and the ambient temperature outside the vehicle is greater than a preset temperature value, controlling the opening of the first expansion valve 32 based on the target cooling temperature of the cooling requirement.

[0130] In some other embodiments, when the thermal management demand of the vehicle cabin indicates that the vehicle cabin has a cooling demand and the ambient temperature outside the vehicle is less than or equal to a preset temperature value, the first expansion valve 32 is controlled to be closed. When the thermal management demand of the vehicle cabin indicates that the vehicle cabin does not have a cooling demand, the first expansion valve 32 is controlled to be closed.

[0131] In this way, the opening of the first expansion valve 32 can be controlled based on the thermal management requirements of the vehicle cabin and the ambient temperature outside the vehicle, thereby improving the utilization rate of the heat of the vehicle thermal management system 100.

[0132] It should be noted that the preset temperature value may be 2° C., 5° C., 7° C., 9° C., etc. This application does not impose any limitation on this, and it is set according to the actual situation.

[0133] For example, the present application takes the preset temperature value of 5°C as an example for explanation.

[0134] When the vehicle has a cooling demand for the vehicle cabin, if the ambient temperature outside the vehicle is greater than 5°C, the first expansion valve 32 is controlled to open, and the opening degree of the first expansion valve 32 is controlled according to the target cooling temperature of the cooling demand for the vehicle cabin. When the vehicle has a cooling demand for the vehicle cabin, if the ambient temperature outside the vehicle is less than or equal to 5°C, the first expansion valve 32 is controlled to close. When the vehicle does not have a cooling demand for the vehicle cabin, the first expansion valve 32 is controlled to close.

[0135] In some embodiments, the controller controls the opening degree of the second expansion valve 42 based on the thermal management demand of the refrigerator, including controlling the opening degree of the second expansion valve 42 based on the target refrigeration temperature of the refrigeration demand when the thermal management demand of the refrigerator indicates that the refrigerator has a refrigeration demand. Alternatively, when the thermal management demand of the refrigerator indicates that the refrigerator does not have a refrigeration demand, the second expansion valve 42 is controlled to be closed.

[0136] In this way, when the refrigerator has a refrigeration demand, the opening of the second expansion valve 42 is controlled to achieve the target refrigeration temperature, which can effectively reduce energy consumption and improve the energy efficiency of the system. By controlling the refrigeration operation according to actual demand, over-refrigeration or refrigeration stop can be avoided, thereby improving energy efficiency.

[0137] The embodiment of the present application also provides a vehicle thermal management system 100, including: a compressor 10, a condenser 20, at least one battery branch 50 and at least one refrigerator branch 40. The outlet of the compressor 10 is connected to the inlet of the condenser 20. The battery branch 50 includes a battery cold plate 51 and a third expansion valve 52, the inlet of the third expansion valve 52 is connected to the outlet of the condenser 20, the inlet of the battery cold plate 51 is connected to the outlet of the third expansion valve 52, and the outlet of the battery cold plate 51 is connected to the inlet of the compressor 10. The refrigerator branch 40 includes a refrigerator evaporator 41 and a second expansion valve 42, the inlet of the second expansion valve 42 is connected to the outlet of the condenser 20, the outlet of the second expansion valve 42 is connected to the inlet of the refrigerator evaporator 41, and the outlet of the refrigerator evaporator 41 is connected to the inlet of the compressor 10.

[0138] In this way, the battery branch 50 and the refrigerator branch 40 in the vehicle thermal management system 100 are connected in parallel, and share a compressor 10 and a condenser 20. In this way, the vehicle thermal management system 100 can manage the distribution of the battery and refrigerator cooling requirements, improve the energy utilization efficiency, and the compressor 10 can use energy more efficiently, thereby reducing the overall energy consumption of the vehicle.

[0139] In addition, when the vehicle thermal management system 100 has different cooling requirements, the cooling mode of the battery and the refrigerator can be adjusted by adjusting the opening of the second expansion valve 42 and the third expansion valve 52, thereby improving the orderly control of the vehicle thermal management system 100, thereby ensuring that heat is reasonably distributed and utilized, and improving the thermal management efficiency of the system.

[0140] In some embodiments, the vehicle thermal management system 100 includes a controller, which is electrically connected to the second expansion valve 42 and the third expansion valve 52. The controller is used to: obtain the thermal management requirements of the thermal management objects, which include at least one battery and at least one refrigerator. Based on the thermal management requirements of the thermal management objects and the thermal management priorities of the thermal management objects, a thermal management operation is performed, and the thermal management operation is used to adjust the operating pressure of the battery cold plate 51 and / or the refrigerator evaporator 41.

[0141] In this way, the controller can obtain the thermal management requirements of the battery and refrigerator, and perform thermal management operations based on these requirements and set priorities. This intelligent control system can ensure that heat is reasonably distributed and utilized, improving the thermal management efficiency of the system.

[0142] It should be noted that the present application does not limit the number of refrigerators and batteries. For example, the number of batteries can be one or two. The number of refrigerators can be one or two.

[0143] In some embodiments, the thermal management operation includes adjusting the opening degree of the second expansion valve 42 to adjust the operating pressure of the refrigerator evaporator 41 .

[0144] In this way, the refrigerator evaporator 41 can be closed or opened by adjusting the opening degree of the second expansion valve 42, and the operating pressure of the refrigerator evaporator 41 can also be adjusted to adjust the temperature in the refrigerator.

[0145] In some other embodiments, the thermal management operation includes adjusting the opening of the third expansion valve 52 to adjust the operating pressure of the battery cold plate 51 .

[0146] In this way, the battery cold plate 51 can be closed or opened by adjusting the opening degree of the third expansion valve 52 , and the operating pressure of the battery cold plate 51 can also be adjusted to adjust the temperature of the battery.

[0147] In some embodiments, the controller performs a thermal management operation based on the thermal management requirements of the thermal management object and the thermal management priority of the thermal management object, including: when the thermal management requirements of the battery meet the preset conditions, adjusting the opening of the third expansion valve 52 in the battery branch 50 corresponding to the battery with cooling requirements based on the cooling gear of the battery, and closing the second expansion valve 42. The preset conditions include: the thermal management requirements of the battery indicate that the battery has cooling requirements and the cooling gear of the battery is greater than the preset gear. Alternatively, the preset conditions include: the thermal management requirements of the battery indicate that the battery has cooling requirements and the number of battery cold plates 51 with cooling requirements is greater than a preset number threshold.

[0148] In this way, the heat in the thermal management system is reasonably distributed according to the thermal management priority of the thermal management object, which is beneficial to improving the thermal management efficiency of the system.

[0149] In some other embodiments, when the thermal management requirements of the battery do not meet preset conditions, the opening of the second expansion valve 42 is controlled based on the thermal management requirements of the refrigerator, and the opening of the third expansion valve 52 in the battery branch 50 corresponding to the battery with cooling requirements is adjusted based on the cooling gear of the battery.

[0150] In this way, when the thermal management demand of the battery is met and the battery cooling gear is in the third gear or the battery cold plate 51 is double-plate cooling, the opening of the third expansion valve 52 in the battery branch 50 corresponding to the battery with cooling demand is adjusted based on the battery cooling gear. In other words, when the battery cooling demand is high, the vehicle thermal management system 100 gives priority to meeting the battery cooling demand.

[0151] When the thermal management demand of the battery does not meet the condition that the battery cooling gear is in the third gear or the battery cold plate 51 is double-plate cooling, the opening of the second expansion valve 42 is controlled based on the thermal management demand of the refrigerator, and the opening of the third expansion valve 52 in the battery branch 50 corresponding to the battery with cooling demand is adjusted based on the cooling gear of the battery. In other words, when the cooling demand of the battery is low, the vehicle thermal management system 100 can meet the cooling demand of the battery and the refrigeration demand of the refrigerator according to actual conditions.

[0152] In some embodiments, the vehicle thermal management system 100 further includes: an ambient temperature sensor, which is used to detect the ambient temperature outside the vehicle. The controller controls the opening of the second expansion valve 42 based on the thermal management requirements of the refrigerator, including: controlling the opening of the second expansion valve 42 and the third expansion valve 52 based on the thermal management requirements of the refrigerator and the ambient temperature outside the vehicle.

[0153] In this way, by controlling the opening of the second expansion valve 42 and the third expansion valve 52 in association with the heat management requirements of the refrigerator and the ambient temperature outside the vehicle, the heat distribution of the vehicle thermal management system 100 can be made more reasonable, which can save energy and improve the utilization rate of heat.

[0154] See also Figure 7 , Figure 7 The vehicle thermal management system provided in the embodiment of the present application is a flow chart of a control method for refrigeration of a vehicle cabin and a refrigerator. The embodiment of the present application provides a control method for controlling the above-mentioned vehicle thermal management system 100, including:

[0155] S101. Acquire thermal management requirements of thermal management objects, where the thermal management objects include a vehicle cabin and at least one refrigerator.

[0156] S102: Execute a thermal management operation based on a thermal management requirement of the thermal management object and a thermal management priority of the thermal management object, where the thermal management operation is used to adjust an operating pressure of an air conditioner evaporator and / or a refrigerator evaporator.

[0157] In this way, the controller can obtain the thermal management requirements of the vehicle cabin and refrigerator, and perform thermal management operations based on these requirements and set priorities. This intelligent control system can ensure that heat is reasonably distributed and utilized, improving the thermal management efficiency of the system.

[0158] In addition, by adjusting the operating pressure of the air conditioner evaporator and / or refrigerator evaporator according to the thermal management requirements and priorities of the thermal management objects, the system can more accurately control the cooling requirements of each device, thereby optimizing energy efficiency, reducing energy consumption, and improving the overall performance of the system.

[0159] In some embodiments, the thermal management operation includes adjusting an opening of the first expansion valve to adjust an operating pressure of the air conditioner evaporator.

[0160] In this way, the air conditioning evaporator 31 can be closed or opened by adjusting the opening degree of the first expansion valve 32 , and the operating pressure of the air conditioning evaporator 31 can also be adjusted to adjust the temperature in the vehicle cabin.

[0161] In some other embodiments, the thermal management operation includes adjusting the opening of the second expansion valve to adjust the operating pressure of the refrigerator evaporator.

[0162] In this way, the refrigerator evaporator 41 can be closed or opened by adjusting the opening degree of the second expansion valve 42, and the operating pressure of the refrigerator evaporator 41 can also be adjusted to adjust the temperature in the refrigerator.

[0163] In some embodiments, the vehicle thermal management system further comprises: an ambient temperature sensor for detecting the ambient temperature outside the vehicle. The thermal management operation is used to adjust the opening of the first expansion valve and the second expansion valve, including: controlling the opening of the second expansion valve and the third expansion valve based on the ambient temperature outside the vehicle.

[0164] In this way, if the ambient temperature outside the vehicle is low, the first expansion valve 32 can be closed, and by opening the external circulation, the cold air outside the vehicle can be circulated into the vehicle to reduce the temperature inside the vehicle. This can save energy and improve the utilization rate of heat.

[0165] It should be noted that the preset temperature value may be 2° C., 5° C., 7° C., 9° C., etc. This application does not impose any limitation on this, and it is set according to the actual situation.

[0166] For example, the present application takes the preset temperature value of 5°C as an example for explanation.

[0167] See also Figure 8 , Figure 8 The vehicle thermal management system provided for the embodiment of the present application is a control logic flow diagram of the vehicle cabin and the refrigerator. After the vehicle is started, the controller obtains the thermal management requirements of the vehicle thermal management system. When the vehicle has a cooling demand for the vehicle cabin and a cooling demand for the refrigerator, or when the vehicle has a cooling demand for the refrigerator and a cooling demand for the vehicle cabin, it is determined whether the ambient temperature is greater than the preset temperature. If so, the first expansion valve is opened and the second expansion valve is opened. If not, the first expansion valve is closed and the second expansion valve is opened. In other words, if the ambient temperature outside the vehicle is greater than 5°C, the first expansion valve is opened and the second expansion valve is opened. If the ambient temperature outside the vehicle is less than or equal to 5°C, the first expansion valve is closed and the second expansion valve is opened.

[0168] In some embodiments, the vehicle thermal management system 100 further includes at least one battery branch 50, the battery branch 50 includes a battery cold plate 51 and a third expansion valve 52, the inlet of the third expansion valve 52 is connected to the outlet of the condenser 20, the third expansion valve 52 is connected to the outlet of the inlet of the battery cold plate 51, and the outlet of the battery cold plate 51 is connected to the inlet of the compressor 10. The thermal management object also includes at least one battery. The thermal management operation is also used to adjust the operating pressure of the battery cold plate.

[0169] The present application also provides a control method for a vehicle thermal management system, comprising:

[0170] Thermal management operations are also used to adjust the operating pressure of the battery cold plate.

[0171] In this way, the controller can obtain the thermal management requirements of thermal management objects such as the vehicle cabin, refrigerator and battery, and perform thermal management operations based on these requirements and set priorities, further ensuring the rational distribution and utilization of heat and improving the thermal management efficiency of the system.

[0172] In some embodiments, the thermal management operation includes adjusting an opening of the third expansion valve to adjust an operating pressure of the battery cold plate.

[0173] In this way, by adjusting the opening degree of the third expansion valve, the opening and closing of the battery cold plate can be adjusted, and the operating pressure of the battery cold plate can also be adjusted to adjust the temperature inside the battery.

[0174] In some embodiments, the controller performs a thermal management operation based on a thermal management requirement of a thermal management object and a thermal management priority of the thermal management object, including:

[0175] When the thermal management requirement of the battery meets the preset conditions, the first expansion valve and the second expansion valve are controlled to be closed, and the opening degree of the third expansion valve in the battery branch corresponding to the battery with cooling requirement is adjusted based on the cooling gear of the battery.

[0176] The preset conditions include: the thermal management requirement of the battery indicates that the battery has a cooling requirement and the cooling gear of the battery is greater than the preset gear. Alternatively, the preset conditions include: the thermal management requirement of the battery indicates that the battery has a cooling requirement and the number of battery cold plates with cooling requirements is greater than a preset number threshold.

[0177] It should be noted that the battery includes a battery management system, which can monitor the battery temperature through a temperature sensor provided in the battery and determine the cooling level of the battery according to the battery temperature. At the same time, the battery management system can also monitor the number of battery cold plates 51 that have cooling requirements.

[0178] Exemplarily, the present application is described by taking the case where the number of cooling levels of the battery is set to 3 and the number of the battery cold plates 51 is two.

[0179] The thermal management priority of the thermal management object can be set to that the thermal management priority of the battery cooling gear is three gears or the number of battery cold plates 51 used is two is greater than the thermal management priority of the vehicle cabin, and the thermal management priority of the battery cooling gear is three gears or the number of battery cold plates 51 used is two is greater than the thermal management priority of the refrigerator.

[0180] In this way, when the thermal management demand of the battery meets the third gear of the battery cooling gear or the battery cold plate 51 is double-plate cooling, the second expansion valve 42 is controlled to be closed, and the opening of the first expansion valve 32 is controlled based on the thermal management demand of the vehicle cabin, and the opening of the third expansion valve 52 in the battery branch 50 corresponding to the battery with cooling demand is adjusted based on the cooling gear of the battery. In other words, when the cooling demand of the battery is high, the vehicle thermal management system 100 gives priority to meeting the cooling demand of the battery and the cooling demand of the vehicle cabin, and the refrigerator can be closed first.

[0181] In some other embodiments, the controller performs a thermal management operation based on a thermal management requirement of the thermal management object and a thermal management priority of the thermal management object, including:

[0182] When the thermal management requirements of the battery do not meet the preset conditions, the opening of the first expansion valve is controlled based on the thermal management requirements of the vehicle cabin, the opening of the second expansion valve is controlled based on the thermal management requirements of the refrigerator, and the opening of the third expansion valve in the battery branch corresponding to the battery with cooling requirements is adjusted based on the cooling gear of the battery.

[0183] In this way, when the thermal management demand of the battery does not meet the condition that the battery cooling gear is in the third gear or the battery cold plate 51 is double-plate cooling, the opening of the first expansion valve 32 is controlled based on the thermal management demand of the vehicle cabin, the opening of the second expansion valve 42 is controlled based on the thermal management demand of the refrigerator, and the opening of the third expansion valve 52 in the battery branch 50 corresponding to the battery with cooling demand is adjusted based on the battery cooling gear. In other words, when the battery cooling demand is low, the vehicle thermal management system 100 can meet the battery cooling demand, the refrigerator cooling demand and the vehicle cabin cooling demand according to actual conditions.

[0184] For example, when the vehicle has cooling requirements for the vehicle cabin and the refrigerator, and also has cooling requirements for the battery, the vehicle thermal management system 100 may first close the second expansion valve 42 and the third expansion valve 52, and after the temperature of the vehicle cabin reaches the preset temperature, open the second expansion valve 42 and the third expansion valve 52, and switch to a cooling mode in which the battery, refrigerator, and vehicle cabin are cooled simultaneously. For another example, when the vehicle has cooling requirements for the vehicle cabin and the battery, and also has cooling requirements for the refrigerator, the vehicle thermal management system 100 may switch to a cooling mode in which the battery, refrigerator, and vehicle cabin are cooled simultaneously. For another example, when the vehicle has cooling requirements for the refrigerator and the battery, and also has cooling requirements for the vehicle cabin, the vehicle thermal management system 100 may first close the third expansion valve 52, and after the temperature of the vehicle cabin reaches the preset temperature, open the third expansion valve 52, and switch to a cooling mode in which the battery, refrigerator, and vehicle cabin are cooled simultaneously.

[0185] In some other embodiments, the controller performs a thermal management operation based on a thermal management requirement of the thermal management object and a thermal management priority of the thermal management object, including:

[0186] When the thermal management requirement of the battery indicates that the battery has no cooling requirement, the opening of the first expansion valve is controlled based on the thermal management requirement of the vehicle cabin, the opening of the second expansion valve is controlled based on the thermal management requirement of the refrigerator, and the third expansion valve is controlled to be closed.

[0187] In this way, when there is no need for battery cooling, the opening of the first expansion valve 32 is controlled based on the thermal management requirements of the vehicle cabin, the opening of the second expansion valve 42 is controlled based on the thermal management requirements of the refrigerator, and the third expansion valve 52 is controlled to be closed. In other words, when there is no need for battery cooling, the vehicle thermal management system 100 can meet the refrigeration requirements of the refrigerator and the cooling requirements of the vehicle cabin according to actual conditions.

[0188] In some embodiments, the control method further includes: obtaining an ambient temperature outside the vehicle. Controlling the opening of the first expansion valve based on the thermal management requirements of the vehicle cabin includes: controlling the opening of the first expansion valve based on the thermal management requirements of the vehicle cabin and the ambient temperature outside the vehicle.

[0189] In this way, if the ambient temperature outside the vehicle is low, the first expansion valve 32 can be closed, and by opening the external circulation, the cold air outside the vehicle can be circulated into the vehicle to reduce the temperature inside the vehicle. This can save energy and improve the utilization rate of heat.

[0190] In some embodiments, the controller controls the opening of the first expansion valve based on the thermal management requirements of the vehicle cabin and the ambient temperature outside the vehicle, including: when the thermal management requirements of the vehicle cabin indicate that the vehicle cabin has a cooling requirement and the ambient temperature outside the vehicle is greater than a preset temperature value, controlling the opening of the first expansion valve based on a target cooling temperature of the cooling requirement.

[0191] In some other embodiments, the controller controls the first expansion valve to close when the thermal management demand of the vehicle cabin indicates that the vehicle cabin has a cooling demand and the ambient temperature outside the vehicle is less than or equal to a preset temperature value. When the thermal management demand of the vehicle cabin indicates that the vehicle cabin does not have a cooling demand, the controller controls the first expansion valve to close.

[0192] In this way, the opening of the first expansion valve 32 can be controlled based on the thermal management requirements of the vehicle cabin and the ambient temperature outside the vehicle, thereby improving the utilization rate of the heat of the vehicle thermal management system 100.

[0193] It should be noted that the preset temperature value may be 2° C., 5° C., 7° C., 9° C., etc. This application does not impose any limitation on this, and it is set according to the actual situation.

[0194] For example, the present application takes the preset temperature value of 5°C as an example for explanation.

[0195] When the vehicle has a cooling demand for the vehicle cabin, if the ambient temperature outside the vehicle is greater than 5°C, the first expansion valve 32 is controlled to open, and the opening degree of the first expansion valve 32 is controlled according to the target cooling temperature of the cooling demand for the vehicle cabin. When the vehicle has a cooling demand for the vehicle cabin, if the ambient temperature outside the vehicle is less than or equal to 5°C, the first expansion valve 32 is controlled to close. When the vehicle does not have a cooling demand for the vehicle cabin, the first expansion valve 32 is controlled to close.

[0196] In some embodiments, the controller controls the opening of the second expansion valve based on the thermal management demand of the refrigerator, including: when the thermal management demand of the refrigerator indicates that the refrigerator has a refrigeration demand, controlling the opening of the second expansion valve based on a target refrigeration temperature of the refrigeration demand.

[0197] In some other embodiments, the controller controls the expansion valve to close when the thermal management demand of the refrigerator indicates that the refrigerator has no refrigeration demand.

[0198] See also Fig. 9 , Fig. 9The vehicle thermal management system provided for the embodiment of the present application is a control logic flow diagram of the vehicle cabin, refrigerator and air-conditioning refrigeration. After the vehicle is started, the controller obtains the thermal management requirements of the vehicle thermal management system. When the vehicle has cooling requirements for the vehicle cabin and battery, and has cooling requirements for the refrigerator, or the vehicle has cooling requirements for the refrigerator and battery, and has cooling requirements for the vehicle cabin, or when the vehicle has cooling requirements for the vehicle cabin and refrigerator, and has cooling requirements for the battery, it is determined whether the ambient temperature is greater than the preset temperature. If so, it is determined whether the preset conditions are met. If the preset conditions are met, the first expansion valve is opened, the second expansion valve is closed and the third expansion valve is opened. If the preset conditions are not met, the first expansion valve is opened, the second expansion valve is opened, and the third expansion valve is opened; if not, the first expansion valve is closed, the second expansion valve is opened, and the third expansion valve is opened.

[0199] That is to say, if the ambient temperature outside the vehicle is less than or equal to 5°C, then close the first expansion valve, and open the second expansion valve and the third expansion valve. If the ambient temperature outside the vehicle is greater than 5°C, then determine whether the battery cooling gear is the third gear or the battery cold plate is double-plate cooling. If so, open the first expansion valve, close the second expansion valve and open the third expansion valve. If not, open the first expansion valve, open the second expansion valve, and open the third expansion valve.

[0200] See also Fig.10 , Fig.10 The vehicle thermal management system provided in the embodiment of the present application is a flow chart of a control method for battery and refrigerator refrigeration. The embodiment of the present application provides a control method for a vehicle thermal management system, including:

[0201] S201. Obtain thermal management requirements of a thermal management object, where the thermal management object includes at least one battery and at least one refrigerator.

[0202] S202: Execute a thermal management operation based on a thermal management requirement of a thermal management object and a thermal management priority of the thermal management object, where the thermal management operation is used for an operating pressure of a battery cold plate and / or a refrigerator evaporator.

[0203] In this way, the controller can obtain the thermal management requirements of the vehicle cabin and refrigerator, and perform thermal management operations based on these requirements and set priorities. This intelligent control system can ensure that heat is reasonably distributed and utilized, improving the thermal management efficiency of the system.

[0204] In some embodiments, the thermal management operation includes adjusting the opening of the second expansion valve to adjust the operating pressure of the refrigerator evaporator.

[0205] In this way, the refrigerator evaporator 41 can be closed or opened by adjusting the opening degree of the second expansion valve 42, and the operating pressure of the refrigerator evaporator 41 can also be adjusted to adjust the temperature in the refrigerator.

[0206] In some other embodiments, the thermal management operation includes adjusting the opening of the third expansion valve to adjust the operating pressure of the battery cold plate.

[0207] In this way, the battery cold plate 51 can be closed or opened by adjusting the opening degree of the third expansion valve 52 , and the operating pressure of the battery cold plate 51 can also be adjusted to adjust the temperature of the battery.

[0208] In some embodiments, a thermal management requirement of a thermal management object is obtained, and the thermal management object includes at least one battery and at least one refrigerator. Based on the thermal management requirement of the thermal management object and the thermal management priority of the thermal management object, a thermal management operation is performed, and the thermal management operation is used to adjust the opening of the second expansion valve and the third expansion valve.

[0209] In this way, the controller can obtain the thermal management requirements of thermal management objects such as refrigerators and batteries, and perform thermal management operations based on these requirements and set priorities to ensure the rational distribution and utilization of heat and improve the thermal management efficiency of the system.

[0210] In some embodiments, the controller performs a thermal management operation based on a thermal management requirement of a thermal management object and a thermal management priority of the thermal management object, including:

[0211] When the thermal management requirement of the battery meets a preset condition, the opening degree of the third expansion valve in the battery branch corresponding to the battery with cooling requirement is adjusted based on the cooling gear of the battery.

[0212] The preset conditions include: the thermal management requirement of the battery indicates that the battery has a cooling requirement and the cooling level of the battery is greater than a preset level.

[0213] In some other embodiments, the preset condition includes: the thermal management requirement of the battery indicates that the battery has a cooling requirement and the number of battery cold plates having a cooling requirement is greater than a preset number threshold.

[0214] In this way, when the thermal management demand of the battery meets the third gear of the battery cooling gear or the battery cold plate 51 is double-plate cooling, the opening of the third expansion valve 52 in the battery branch 50 corresponding to the battery with cooling demand is adjusted based on the battery cooling gear. In other words, when the battery cooling demand is high, the vehicle thermal management system 100 gives priority to meeting the battery cooling demand and the vehicle cabin cooling demand, and the refrigerator can be turned off first.

[0215] In some other embodiments, when the thermal management requirements of the battery do not meet preset conditions, the opening of the second expansion valve is controlled based on the thermal management requirements of the refrigerator, and the opening of the third expansion valve in the battery branch corresponding to the battery with cooling requirements is adjusted based on the cooling gear of the battery.

[0216] In this way, when the thermal management demand of the battery does not meet the condition that the battery cooling gear is in the third gear or the battery cold plate 51 is double-plate cooling, the opening of the second expansion valve 42 is controlled based on the thermal management demand of the refrigerator, and the opening of the third expansion valve 52 in the battery branch 50 corresponding to the battery with cooling demand is adjusted based on the cooling gear of the battery. In other words, when the cooling demand of the battery is not high, the vehicle thermal management system 100 can meet the cooling demand of the battery and the refrigeration demand of the refrigerator according to actual conditions.

[0217] In some embodiments, the control method further includes: detecting the ambient temperature outside the vehicle. Controlling the opening of the second expansion valve based on the thermal management requirements of the refrigerator includes: controlling the openings of the second expansion valve and the third expansion valve based on the thermal management requirements of the refrigerator and the ambient temperature outside the vehicle.

[0218] In this way, the opening of the first expansion valve 32 can be controlled based on the thermal management requirements of the vehicle cabin and the ambient temperature outside the vehicle, thereby improving the utilization rate of the heat of the vehicle thermal management system 100.

[0219] See also Fig.11 , Fig.11 The vehicle thermal management system provided in the embodiment of the present application is a control logic flow diagram of a battery and a refrigerator. After the vehicle is started, the controller obtains the thermal management requirements of the vehicle thermal management system. When the vehicle has a battery cooling requirement and a refrigerator cooling requirement, or when the vehicle has a refrigerator cooling requirement and a battery cooling requirement, it is determined whether the ambient temperature is greater than a preset temperature. If so, it is determined whether the preset conditions are met. If the preset conditions are met, the second expansion valve is closed and the third expansion valve is opened. If the preset conditions are not met, the second expansion valve is opened and the third expansion valve is opened; if not, the second expansion valve is opened and the third expansion valve is opened.

[0220] That is to say, if the ambient temperature outside the vehicle is greater than 5°C, then it is determined whether the battery cooling gear is the third gear or the battery cold plate is double-plate cooling. If it is satisfied, the second expansion valve is closed and the third expansion valve is opened. If it is not satisfied, the second expansion valve is opened and the third expansion valve is opened. If the ambient temperature outside the vehicle is less than or equal to 5°C, the second expansion valve is opened and the third expansion valve is opened.

[0221] An embodiment of the present application provides an electronic device, including a processor and a memory, wherein the processor is connected to the memory, and the memory stores computer instructions. When the computer instructions are executed on the electronic device, the electronic device executes the above method.

[0222] In this way, by storing the device control method in the form of computer instructions in the memory, automatic control can be achieved when the device is running, reducing human intervention and improving the stability and efficiency of the system operation.

[0223] Optionally, the memory may be a non-temporary computer-readable storage medium, for example, the non-temporary computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0224] The present application also provides a vehicle, comprising the above-mentioned electronic device.

[0225] In some embodiments, the present application also provides a computer program product, which includes a computer program. When the computer program is executed by a device, the device executes any of the methods described above.

[0226] In this way, the computer program in the computer program product can be customized according to the specific needs and operating conditions of the device, realizing a personalized control method and improving the adaptability and flexibility of the device control.

[0227] In addition, computer program products can be executed on different devices or systems to achieve cross-platform applicability, provide a unified control method for different types of devices, and improve system integration and interoperability.

[0228] Although the present application has been described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely exemplary illustrations of the present application as defined by the appended claims, and are deemed to have covered any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0229] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A vehicle thermal management system, characterized in that: include: A compressor (10) and a condenser (20), wherein the outlet of the compressor (10) is in communication with the inlet of the condenser (20); an air conditioning branch (30), the air conditioning branch (30) comprising an air conditioning evaporator (31) and a first expansion valve (32), the inlet of the first expansion valve (32) being in communication with the outlet of the condenser (20), the outlet of the first expansion valve (32) being in communication with the inlet of the air conditioning evaporator (31), and the outlet of the air conditioning evaporator (31) being in communication with the inlet of the compressor (10); At least one refrigerator branch (40), the refrigerator branch (40) comprising a refrigerator evaporator (41) and a second expansion valve (42), the inlet of the second expansion valve (42) being connected to the outlet of the condenser (20), the outlet of the second expansion valve (42) being connected to the inlet of the refrigerator evaporator (41), and the outlet of the refrigerator evaporator (41) being connected to the inlet of the compressor (10).

2. The vehicle thermal management system according to claim 1, characterized in that: Also includes: At least one battery branch (50), the battery branch (50) comprising a battery cold plate (51) and a third expansion valve (52), the inlet of the third expansion valve (52) being connected to the outlet of the condenser (20), the outlet of the third expansion valve (52) being connected to the inlet of the battery cold plate (51), and the outlet of the battery cold plate (51) being connected to the inlet of the compressor (10).

3. The vehicle thermal management system according to claim 2, characterized in that: The number of the battery branches (50) is multiple.

4. The vehicle thermal management system according to claim 2, characterized in that: The battery branch (50) further comprises a fourth expansion valve (53), the inlet of the fourth expansion valve (53) being connected to the outlet of the battery cold plate (51), and the outlet of the fourth expansion valve (53) being connected to the outlet of the inlet of the compressor (10).

5. The vehicle thermal management system according to claim 1, characterized in that: There are a plurality of refrigerator branches (40), the inlets of the second expansion valves (42) of the plurality of refrigerator branches (40) are all connected to the outlet of the condenser (20), the outlets of the second expansion valves (42) of the plurality of refrigerator branches (40) are all connected to the inlet of the refrigerator evaporator (41), and the outlets of the refrigerator evaporators (41) of the plurality of refrigerator branches (40) are all connected to the inlet of the compressor (10).

6. The vehicle thermal management system according to claim 1, characterized in that: Also includes: A coaxial tube (60), the coaxial tube (60) comprising a central channel (61) and an outer tube channel (62) surrounding the central channel (61); the inlet of the central channel (61) is connected to the outlet of the condenser (20), and the outlet of the central channel (61) is connected to the inlets of the air-conditioning evaporator (31) and the refrigerator evaporator (41); the inlet of the outer tube channel (62) is connected to the outlet of the air-conditioning evaporator (31) and the refrigerator evaporator (41), and the outlet of the outer tube channel (62) is connected to the inlet of the compressor (10).

7. The vehicle thermal management system according to claim 2, characterized in that: Also includes: A coaxial tube (60), the coaxial tube (60) comprising a central channel (61) and an outer tube channel (62) surrounding the central channel (61); the inlet of the central channel (61) is communicated with the outlet of the condenser (20), and the outlet of the central channel (61) is communicated with the inlets of the air-conditioning evaporator (31), the refrigerator evaporator (41) and the battery cold plate (51); the inlet of the outer tube channel (62) is communicated with the outlets of the air-conditioning evaporator (31), the refrigerator evaporator (41) and the battery cold plate (51), and the outlet of the outer tube channel (62) is communicated with the inlet of the compressor (10).

8. The vehicle thermal management system according to claim 6 or 7, characterized in that: Also includes: A liquid storage tank (70), wherein the inlet of the liquid storage tank (70) is communicated with the outlet of the condenser (20), and the outlet of the liquid storage tank (70) is communicated with the inlet of the central channel (61).

9. The vehicle thermal management system according to claim 8, characterized in that: Also includes: A gas-liquid separator (80), wherein the inlet of the gas-liquid separator (80) is communicated with the outlet of the outer tube channel (62), and the outlet of the gas-liquid separator (80) is communicated with the inlet of the compressor (10).

10. The vehicle thermal management system according to claim 1, characterized in that: Also includes: A controller, the controller being electrically connected to the first expansion valve (32) and the second expansion valve (42), the controller being used for: Acquiring thermal management requirements of thermal management objects, wherein the thermal management objects include a vehicle cabin and at least one refrigerator; Based on the thermal management requirements of the thermal management object and the thermal management priority of the thermal management object, a thermal management operation is performed, wherein the thermal management operation is used to adjust the operating pressure of the air conditioner evaporator (31) and / or the refrigerator evaporator (41).

11. The vehicle thermal management system according to claim 10, characterized in that: The thermal management operation includes adjusting the opening of the first expansion valve (32) and / or the second expansion valve (42) to adjust the operating pressure of the air conditioner evaporator (31) and / or the refrigerator evaporator (41).

12. The vehicle thermal management system according to claim 10, characterized in that: Also includes: A controller, the controller being electrically connected to the first expansion valve (32), the second expansion valve (42) and the third expansion valve (52), the controller being used for: Acquiring thermal management requirements of thermal management objects, the thermal management objects comprising a vehicle cabin, at least one refrigerator, and at least one battery; Based on the thermal management requirements of the thermal management object and the thermal management priority of the thermal management object, a thermal management operation is performed, and the thermal management operation is also used to adjust the operating pressure of the battery cold plate (51).

13. The vehicle thermal management system according to claim 12, characterized in that: The thermal management operation includes adjusting the opening of the third expansion valve (52) to adjust the operating pressure of the battery cold plate (51).

14. The vehicle thermal management system according to claim 13, characterized in that: The controller performs a thermal management operation based on a thermal management requirement of the thermal management object and a thermal management priority of the thermal management object, including: When the thermal management requirement of the battery meets a preset condition, the second expansion valve (42) is controlled to be closed, and the opening of the first expansion valve (32) is controlled based on the thermal management requirement of the vehicle cabin, and the opening of the third expansion valve (52) in the battery branch (50) corresponding to the battery with cooling requirement is adjusted based on the cooling gear of the battery; wherein the preset condition includes: the thermal management requirement of the battery indicates that the battery has cooling requirement and the cooling gear of the battery is greater than the preset gear; or, the preset condition includes: the thermal management requirement of the battery indicates that the battery has cooling requirement and the number of batteries with cooling requirement is greater than a preset number threshold; or, When the thermal management requirement of the battery does not meet a preset condition, the opening of the first expansion valve (32) is controlled based on the thermal management requirement of the vehicle cabin, the opening of the second expansion valve (42) is controlled based on the thermal management requirement of the refrigerator, and the opening of the third expansion valve (52) in the battery branch (50) corresponding to the battery with cooling requirement is adjusted based on the cooling gear of the battery; or, When the thermal management requirement of the battery indicates that the battery has no cooling requirement, the opening of the first expansion valve (32) is controlled based on the thermal management requirement of the vehicle cabin, the opening of the second expansion valve (42) is controlled based on the thermal management requirement of the refrigerator, and the third expansion valve (52) is controlled to be closed.

15. The vehicle thermal management system according to claim 14, characterized in that: Also includes: An ambient temperature sensor, wherein the ambient temperature sensor is used to detect the ambient temperature outside the vehicle; The controller controls the opening of the first expansion valve (32) based on the thermal management requirements of the vehicle cabin, including: The opening degree of the first expansion valve (32) is controlled based on the thermal management requirements of the vehicle cabin and the ambient temperature outside the vehicle.

16. The vehicle thermal management system according to claim 15, characterized in that: The controller controls the opening of the first expansion valve (32) based on the thermal management requirements of the vehicle cabin and the ambient temperature outside the vehicle, including: When the thermal management demand of the vehicle cabin indicates that the vehicle cabin has a cooling demand, and the ambient temperature outside the vehicle is greater than a preset temperature value, the opening degree of the first expansion valve (32) is controlled based on a target cooling temperature of the cooling demand; or When the thermal management demand of the vehicle cabin indicates that the vehicle cabin has a cooling demand, and the ambient temperature outside the vehicle is less than or equal to a preset temperature value, controlling the first expansion valve (32) to close; When the thermal management demand of the vehicle cabin indicates that the vehicle cabin has no cooling demand, the first expansion valve (32) is controlled to be closed.

17. The vehicle thermal management system according to claim 14, characterized in that: The controller controls the opening degree of the second expansion valve (42) based on the thermal management requirements of the refrigerator, including: When the thermal management demand of the refrigerator indicates that the refrigerator has a refrigeration demand, the opening degree of the second expansion valve (42) is controlled based on a target refrigeration temperature of the refrigeration demand; or When the thermal management demand of the refrigerator indicates that the refrigerator has no refrigeration demand, the second expansion valve (42) is controlled to be closed.

18. A vehicle thermal management system, characterized in that: include: A compressor (10) and a condenser (20), wherein the outlet of the compressor (10) is in communication with the inlet of the condenser (20); at least one battery branch (50), the battery branch (50) comprising a battery cold plate (51) and a third expansion valve (52), the inlet of the third expansion valve (52) being connected to the outlet of the condenser (20), the outlet of the third expansion valve (52) being connected to the inlet of the battery cold plate (51), and the outlet of the battery cold plate (51) being connected to the inlet of the compressor (10); At least one refrigerator branch (40), the refrigerator branch (40) comprising a refrigerator evaporator (41) and a second expansion valve (42), the inlet of the second expansion valve (42) being connected to the outlet of the condenser (20), the outlet of the second expansion valve (42) being connected to the inlet of the refrigerator evaporator (41), and the outlet of the refrigerator evaporator (41) being connected to the inlet of the compressor (10).

19. The vehicle thermal management system according to claim 18, characterized in that: Also includes: A controller, the controller being electrically connected to the second expansion valve (42) and the third expansion valve (52), the controller being used for: Acquire thermal management requirements of thermal management objects, where the thermal management objects include at least one battery and at least one refrigerator; Based on the thermal management requirements of the thermal management object and the thermal management priority of the thermal management object, a thermal management operation is performed, wherein the thermal management operation is used to adjust the operating pressure of the battery cold plate (51) and / or the refrigerator evaporator (41).

20. The vehicle thermal management system according to claim 19, characterized in that: The thermal management operation includes adjusting the opening of the second expansion valve (42) and / or the third expansion valve (52) to adjust the operating pressure of the battery cold plate (51) and / or the refrigerator evaporator (41).

21. The vehicle thermal management system according to claim 20, characterized in that: The performing a thermal management operation based on the thermal management requirement of the thermal management object and the thermal management priority of the thermal management object includes: When the thermal management demand of the battery meets a preset condition, the opening of the third expansion valve (52) in the battery branch (50) corresponding to the battery with cooling demand is adjusted based on the cooling gear of the battery, and the second expansion valve (42) is closed; wherein the preset condition includes: the thermal management demand of the battery indicates that the battery has cooling demand and the cooling gear of the battery is greater than the preset gear; or the preset condition includes: the thermal management demand of the battery indicates that the battery has cooling demand and the number of batteries with cooling demand is greater than a preset number threshold; or, When the thermal management requirement of the battery does not meet a preset condition, the opening of the second expansion valve (42) is controlled based on the thermal management requirement of the refrigerator, and the opening of the third expansion valve (52) in the battery branch (50) corresponding to the battery with cooling requirement is adjusted based on the cooling gear of the battery.

22. The vehicle thermal management system according to claim 21, characterized in that: Also includes: An ambient temperature sensor, wherein the ambient temperature sensor is used to detect the ambient temperature outside the vehicle; The controlling the opening degree of the second expansion valve (42) based on the thermal management requirement of the refrigerator comprises: The openings of the second expansion valve (42) and the third expansion valve (52) are controlled based on the thermal management requirements of the refrigerator and the ambient temperature outside the vehicle.

23. A control method for controlling the vehicle thermal management system according to any one of claims 1 to 17, characterized in that: include: Acquiring thermal management requirements of thermal management objects, wherein the thermal management objects include a vehicle cabin and at least one refrigerator; Based on the thermal management requirement of the thermal management object and the thermal management priority of the thermal management object, a thermal management operation is performed, wherein the thermal management operation is used to adjust the operating pressure of the air conditioner evaporator and / or the refrigerator evaporator.

24. The method according to claim 23, characterized in that The thermal management operation includes adjusting the opening of the first expansion valve and / or the second expansion valve to adjust the operating pressure of the air conditioner evaporator and / or the refrigerator evaporator.

25. The control method according to claim 24, characterized in that: The vehicle thermal management system further includes at least one battery branch, the battery branch including a battery cold plate and a third expansion valve, the inlet of the third expansion valve is communicated with the outlet of the condenser, the third expansion valve is communicated with the outlet of the inlet of the battery cold plate, and the outlet of the battery cold plate is communicated with the inlet of the compressor; The thermal management object further includes at least one battery; and the thermal management operation is further used to adjust the operating pressure of the battery cold plate.

26. The method according to claim 25, characterized in that The thermal management operation includes adjusting an opening of a third expansion valve to adjust an operating pressure of the battery cold plate.

27. The control method according to claim 26, characterized in that: Based on the thermal management requirement of the thermal management object and the thermal management priority of the thermal management object, a thermal management operation is performed, including: When the thermal management demand of the battery meets a preset condition, the first expansion valve and the second expansion valve are controlled to be closed, and the opening degree of the third expansion valve in the battery branch corresponding to the battery with cooling demand is adjusted based on the cooling gear of the battery; wherein the preset condition includes: the thermal management demand of the battery indicates that the battery has cooling demand and the cooling gear of the battery is greater than the preset gear; or, the preset condition includes: the thermal management demand of the battery indicates that the battery has cooling demand and the number of batteries with cooling demand is greater than a preset number threshold; or, When the thermal management requirement of the battery does not meet the preset condition, the opening of the first expansion valve is controlled based on the thermal management requirement of the vehicle cabin, the opening of the second expansion valve is controlled based on the thermal management requirement of the refrigerator, and the opening of the third expansion valve in the battery branch corresponding to the battery with cooling requirement is adjusted based on the cooling gear of the battery; or, When the thermal management requirement of the battery indicates that the battery has no cooling requirement, the opening of the first expansion valve is controlled based on the thermal management requirement of the vehicle cabin, the opening of the second expansion valve is controlled based on the thermal management requirement of the refrigerator, and the third expansion valve is controlled to be closed.

28. The control method according to claim 27, characterized in that: The control method further comprises: Get the ambient temperature outside the vehicle; Controlling the opening of the first expansion valve based on the thermal management requirement of the vehicle cabin includes: The opening of the first expansion valve is controlled based on the thermal management requirements of the vehicle cabin and the ambient temperature outside the vehicle.

29. The control method according to claim 28, characterized in that: Controlling the opening of the first expansion valve based on the thermal management requirements of the vehicle cabin and the ambient temperature outside the vehicle includes: When the thermal management demand of the vehicle cabin indicates that the vehicle cabin has a cooling demand, and the ambient temperature outside the vehicle is greater than a preset temperature value, controlling the opening of the first expansion valve based on a target cooling temperature of the cooling demand; or When the thermal management demand of the vehicle cabin indicates that the vehicle cabin has a cooling demand, and the ambient temperature outside the vehicle is less than or equal to a preset temperature value, controlling the first expansion valve to close; When the thermal management demand of the vehicle cabin indicates that the vehicle cabin has no cooling demand, the first expansion valve is controlled to be closed.

30. The control method according to claim 27, characterized in that: Controlling the opening of the second expansion valve based on the thermal management requirement of the refrigerator includes: When the thermal management demand of the refrigerator indicates that the refrigerator has a refrigeration demand, controlling the opening degree of the second expansion valve based on a target refrigeration temperature of the refrigeration demand; or When the thermal management demand of the refrigerator indicates that the refrigerator has no refrigeration demand, the second expansion valve is controlled to be closed.

31. A control method for controlling the vehicle thermal management system according to any one of claims 18 to 22, characterized in that: include: Acquire thermal management requirements of thermal management objects, where the thermal management objects include at least one battery and at least one refrigerator; Based on the thermal management requirement of the thermal management object and the thermal management priority of the thermal management object, a thermal management operation is performed, wherein the thermal management operation is used to adjust the operating pressure of the battery cold plate and / or the refrigerator evaporator.

32. The control method according to claim 31, characterized in that: The thermal management operation includes adjusting the opening of the second expansion valve and / or the third expansion valve to adjust the operating pressure of the battery cold plate and / or the refrigerator evaporator.

33. The control method according to claim 32, characterized in that: Based on the thermal management requirement of the thermal management object and the thermal management priority of the thermal management object, a thermal management operation is performed, including: When the thermal management demand of the battery meets a preset condition, the opening of the third expansion valve in the battery branch corresponding to the battery with cooling demand is adjusted based on the cooling gear of the battery, and the second expansion valve is closed; wherein the preset condition includes: the thermal management demand of the battery indicates that the battery has cooling demand and the cooling gear of the battery is greater than the preset gear; or, the preset condition includes: the thermal management demand of the battery indicates that the battery has cooling demand and the number of batteries with cooling demand is greater than a preset number threshold; or, When the thermal management requirement of the battery does not meet the preset conditions, the opening of the second expansion valve is controlled based on the thermal management requirement of the refrigerator, and the opening of the third expansion valve in the battery branch corresponding to the battery with cooling requirement is adjusted based on the cooling gear of the battery.

34. The control method according to claim 33, characterized in that: Also includes: Get the ambient temperature outside the vehicle; Controlling the opening of the second expansion valve based on the thermal management requirement of the refrigerator includes: The openings of the second expansion valve and the third expansion valve are controlled based on the thermal management requirements of the refrigerator and the ambient temperature outside the vehicle.

35. An electronic device, characterized in that: The electronic device comprises a processor and a memory, wherein the processor is connected to the memory, and the memory stores computer instructions. When the computer instructions are executed on the electronic device, the electronic device executes the method according to any one of claims 23 to 34.

36. A vehicle, characterized in that: A vehicle thermal management system (100) comprising any one of claims 1-22 and / or an electronic device as claimed in claim 35.

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