Vehicle and thermal management system thereof

Abstract

The invention provides a vehicle and a thermal management system thereof. The thermal management system comprises a refrigerant loop, an integrated valve, a power battery loop, an electric drive loop, a Chiller loop, a radiator loop, a warm air loop and a cold air loop. A refrigerant is sealed in a closed component assembly formed by the refrigerant loop, and the refrigerant circulating in the refrigerant loop exchanges heat with cooling liquid in the warm air loop or the cold air loop through the multiple layers of isolation laminations. And an AC controller in the vehicle responds to the condition that the calibration value of the vehicle meets the preset condition, and controls the corresponding water inlet / outlet in the multiple water inlet / outlets included in the pile-up valve to be selectively communicated, so that the corresponding air conditioner requirement of the vehicle is met. According to the thermal management system, the design requirement of extremely simplifying a refrigerant loop can be met, the application of mainstream refrigerants, new refrigerants and the new refrigerants can be compatible, the future environmental protection requirement is met, and meanwhile the use safety of the new refrigerants is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of design and manufacture of thermal management systems for vehicles, and in particular, to a vehicle and a thermal management system thereof. Background Art

[0002] The GWP of vehicle air-conditioning refrigerant R134a is 1430. It can be seen that R134a will inevitably be replaced by new refrigerants in the future. Therefore, the development of air-conditioning and cooling coupling systems that use new vehicle air-conditioning refrigerants has become a topic that must be studied for new energy vehicles.

[0003] The existing air conditioning refrigerant on the market is R134a, which is a greenhouse gas with a GWP value of 1430. Its widespread use has aggravated the increasingly serious global warming phenomenon. In order to reverse this phenomenon, the application of new vehicle air conditioning refrigerants has become an inevitable development trend in this field. The existing air conditioning thermal management system is not compatible with the new vehicle air conditioning refrigerant. Replacing the new vehicle air conditioning refrigerant requires the redevelopment of a set of air conditioning thermal management system, which is very costly. Summary of the invention

[0004] In view of this, the purpose of the embodiments of the present application is to provide a vehicle and a thermal management system thereof, which can not only meet the design requirements of a very simplified refrigerant circuit, but also be compatible with mainstream refrigerants and new refrigerants. The application of new refrigerants can meet future environmental protection needs, and at the same time the safety of using new refrigerants is effectively improved.

[0005] In a first aspect, an embodiment of the present application provides a thermal management system for a vehicle, the thermal management system comprising: a refrigerant circuit, an integrated valve, a power battery circuit, an electric drive circuit, a chiller circuit, a radiator circuit, a warm air circuit, and a cold air circuit; wherein the refrigerant is sealed in a closed component assembly formed by the refrigerant circuit, and the refrigerant circulating in the refrigerant circuit exchanges heat with a coolant in the warm air circuit or the cold air circuit respectively through a multi-layer isolation laminate;

[0006] The AC controller in the vehicle responds to the calibration value of the vehicle satisfying the preset conditions, and controls the refrigerant circuit, power battery circuit, electric drive circuit, chiller circuit, radiator circuit, warm air circuit and cold air circuit to be selectively connected through corresponding water inlets and outlets among the multiple water inlets and outlets included in the integrated valve to achieve the corresponding air-conditioning requirements of the vehicle.

[0007] Optionally, the refrigerant circuit is arranged in an engine compartment of a vehicle.

[0008] Optionally, the refrigerant circuit integrates a battery chiller, an electric compressor, a liquid-cooled condenser, a liquid receiver and an electronic expansion valve which are sequentially connected through pipelines;

[0009] The refrigerant flowing through the battery chiller exchanges heat with the coolant in the cold air circuit through the first isolation laminate;

[0010] The refrigerant flowing through the liquid-cooled condenser exchanges heat with the coolant in the warm air circuit through the second isolation stack.

[0011] Optionally, the power battery circuit includes a power battery and a water pump; the power battery circuit is connected through the battery water inlet and outlet of the integrated valve;

[0012] The cold air circuit is provided with a cold air core; the cold air circuit is connected through the cold air inlet and outlet of the integrated valve;

[0013] The warm air circuit comprises a warm air core, a water heater and a water pump; the warm air circuit is connected through the warm air inlet and outlet of the integrated valve;

[0014] The electric drive circuit is also provided with a rear electric drive, a front electric drive and an integrated controller; the electric drive circuit is connected through the electric drive water inlet and outlet of the integrated valve;

[0015] The chiller circuit is also provided with a water pump; the chiller circuit is connected through the chiller water inlet and outlet of the integrated valve and the chiller water inlet and outlet of the battery chiller;

[0016] The radiator circuit also includes a radiator; the radiator circuit is connected through the radiator water inlet and outlet of the integrated valve.

[0017] Optionally, the power battery circuit is also provided with a three-way valve circuit; the power battery circuit determines the temperature control mode of the power battery circuit based on the conduction mode of the three-way valve circuit; the temperature control mode includes coolant heat exchange or battery self-circulation; the three-way valve circuit includes: a three-way proportional regulating water valve, a long-pass three-way valve and a one-way valve.

[0018] Optionally, the thermal management system further includes at least one temperature sensor, which is respectively arranged in one or more of the power battery circuit, the Chiller circuit, the electric drive circuit and the warm air circuit.

[0019] Optionally, the refrigerant circuit further includes at least one temperature and pressure sensor disposed in a pipeline of the refrigerant circuit.

[0020] In a second aspect, an embodiment of the present application provides a control method for a thermal management system of a vehicle, wherein the thermal management system includes: a refrigerant circuit, an integrated valve, a power battery circuit, an electric drive circuit, a chiller circuit, a radiator circuit, a warm air circuit, and a cold air circuit; wherein the refrigerant is sealed in a closed component assembly formed by the refrigerant circuit, and the refrigerant circulating in the refrigerant circuit exchanges heat with the coolant in the warm air circuit or the cold air circuit respectively through the multi-layer isolation laminate inside the chiller and the liquid-cooled condenser;

[0021] The control method is applied to an AC controller in a vehicle, comprising:

[0022] In response to the calibration value of the vehicle satisfying a preset condition, the refrigerant circuit, power battery circuit, electric drive circuit, chiller circuit, radiator circuit, warm air circuit and cold air circuit are controlled to be selectively connected through corresponding water inlets and outlets among the multiple water inlets and outlets included in the integrated valve to achieve the corresponding air-conditioning requirements of the vehicle.

[0023] In a third aspect, an embodiment of the present application provides a vehicle, including a vehicle body and the above-mentioned thermal management system, wherein the thermal management system is arranged on the vehicle body.

[0024] Optionally, the refrigerant circuit, integrated valve, power battery circuit, chiller circuit, radiator circuit and electric drive circuit included in the thermal management system are arranged in the vehicle's cabin; the warm air circuit and cold air circuit are arranged in the vehicle's passenger compartment.

[0025] A vehicle and a thermal management system thereof provided in an embodiment of the present application can not only meet the design requirements of a very simplified refrigerant circuit, but also be compatible with mainstream refrigerants and new refrigerants. The application of new refrigerants can meet future environmental protection needs, and at the same time, the safety of using new refrigerants is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A structural diagram of a thermal management system for a vehicle provided in an embodiment of the present application is shown;

[0028] Figure 2 One of the schematic diagrams of a thermal management system for a vehicle provided in an embodiment of the present application is shown;

[0029] Figure 3 A second schematic diagram of a thermal management system for a vehicle provided in an embodiment of the present application is shown;

[0030] Figure 4 A third schematic diagram of a thermal management system for a vehicle provided in an embodiment of the present application is shown;

[0031] Figure 5 A fourth schematic diagram of a thermal management system for a vehicle provided in an embodiment of the present application is shown;

[0032] Figure 6 A fifth schematic diagram of a thermal management system for a vehicle provided in an embodiment of the present application is shown;

[0033] Figure 7 A sixth schematic diagram of a thermal management system for a vehicle provided in an embodiment of the present application is shown;

[0034] Figure 8 A seventh schematic diagram of a thermal management system for a vehicle provided in an embodiment of the present application is shown;

[0035] Fig. 9 An eighth schematic diagram of a thermal management system for a vehicle provided in an embodiment of the present application is shown;

[0036] Fig.10 A ninth schematic diagram showing a thermal management system for a vehicle provided in an embodiment of the present application;

[0037] Fig.11 A flow chart of a method for controlling a thermal management system of a vehicle provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0038] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, each other embodiment obtained by those skilled in the art without making creative work belongs to the scope of protection of the present application.

[0039] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0040] The system or device readable storage medium described below in the embodiments of the present application can be applied to any scenario for implementing thermal management of a vehicle. The embodiments of the present application are not limited to specific application scenarios, and any solution using the vehicle and its thermal management system provided by the embodiments of the present application are within the protection scope of the present application.

[0041] It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the existence of the features declared thereafter, but does not exclude the addition of other features.

[0042] On September 15, 2021, my country became the 122nd Party to the Kigali Amendment, which means that non-CO2 greenhouse gases such as hydrofluorocarbons will be more strictly controlled. Unfortunately, the GWP of vehicle air-conditioning refrigerant R134a is 1430. It can be seen that R134a will inevitably be replaced by new refrigerants in the future. Therefore, the development of air-conditioning and cooling coupling systems that use new vehicle air-conditioning refrigerants has become a topic that must be studied for new energy vehicles.

[0043] The existing air conditioning refrigerant on the market is R134a, which is a greenhouse gas with a GWP value of 1430. Its widespread use has aggravated the increasingly serious global warming phenomenon. In order to reverse this phenomenon, the application of new vehicle air conditioning refrigerants has become an inevitable development trend in this field. The existing air conditioning thermal management system is not compatible with the new vehicle air conditioning refrigerant. Replacing the new vehicle air conditioning refrigerant requires the redevelopment of a set of air conditioning thermal management system, which is very costly.

[0044] In response to the above problems, an embodiment of the present application provides a vehicle thermal management system that can not only meet the design requirements of a minimalist refrigerant circuit, but is also compatible with mainstream refrigerants and new refrigerants. The application of new refrigerants can meet future environmental protection needs, and at the same time, the safety of using new refrigerants is effectively improved.

[0045] Figure 1 It is a structural diagram of a vehicle thermal management system provided in an embodiment of the present application.

[0046] like Figure 1As shown in , the thermal management system of the vehicle includes: a refrigerant circuit 100, an integrated valve 200, a power battery circuit 300, an electric drive circuit 400, a chiller circuit 700, a radiator circuit 800, a warm air circuit 500 and a cold air circuit 600.

[0047] Here, the refrigerant is sealed in a closed component assembly formed by the refrigerant circuit 100, and the refrigerant circulating in the refrigerant circuit exchanges heat with the coolant in the warm air circuit 500 or the cold air circuit 600 through the multi-layer isolation laminate. Here, as an example, the multi-layer isolation laminate can be a multi-layer aluminum laminate or an aluminum laminate of other materials, and the present application does not make any limitation here.

[0048] The AC controller in the vehicle can control the refrigerant circuit 100, the power battery circuit 300, the electric drive circuit 400, the Chiller circuit 700, the radiator circuit 800, the warm air circuit 500 and the cold air circuit 600 to be selectively connected through corresponding water inlets and outlets among the multiple water inlets and outlets included in the integrated valve 200 in response to the vehicle's calibration value satisfying a preset condition, so as to achieve the corresponding air-conditioning requirements of the vehicle.

[0049] In one embodiment of the present application, the refrigerant circuit 100 can be arranged in the engine compartment of the vehicle, where the engine compartment of the vehicle is the engine compartment of the vehicle. Since the refrigerant is sealed in the refrigerant circuit 100 and circulates only in the circuit, it does not need to circulate through the pipes arranged in the passenger compartment as in the prior art to complete the heat interaction with the coolant. Therefore, it not only meets the design requirements of the extremely simplified refrigerant circuit 100, but is also compatible with the mainstream refrigerant R134a and new refrigerants, such as refrigerant R290, etc. This is because the refrigerant cannot flow through the passenger compartment, thereby overcoming the defect of the flammability of the new refrigerant, so that the safety of the passengers is effectively improved.

[0050] Figure 2 FIG. 1 shows one schematic diagram of a vehicle thermal management system provided by an embodiment of the present application. Figure 2 As shown, in a specific implementation, as an example, the refrigerant circuit 100 may be integrated with a battery Chiller 101, an electric compressor 102, a liquid-cooled condenser 103, a liquid reservoir 104 and an electronic expansion valve 105 which are sequentially connected through pipelines; wherein the refrigerant flowing through the battery Chiller 101 exchanges heat with the coolant in the cold air circuit 600 through the first isolation laminate; and the refrigerant flowing through the liquid-cooled condenser 103 exchanges heat with the coolant in the warm air circuit 500 through the second isolation laminate.

[0051] In addition, as an example, the power battery circuit 300 may be provided with a power battery 301 and a (battery) water pump 302; the power battery circuit 300 may be connected through the battery water inlet and outlet of the integrated valve 200. Under the above structure, the power battery circuit 300 may perform heat exchange with the coolant in the warm air circuit 500 or the cold air circuit 600 when it needs to keep warm or cool down. In addition, in order to meet the personalized temperature control mode, the power battery circuit 300 may additionally include a three-way valve circuit, and the power battery circuit 300 may determine the temperature control mode of the power battery circuit 300 based on the conduction mode of the three-way valve circuit; the temperature control mode includes coolant heat exchange or battery self-circulation; the three-way valve circuit includes: a three-way proportional regulating water valve 303, a long-pass three-way valve 304 and a one-way valve 305.

[0052] The cold air circuit 600 includes a cold air core 601; the cold air circuit 600 is connected through the cold air inlet and outlet of the integrated valve 200. The warm air circuit 500 includes a warm air core 501, a water heater PTC 502 and a (warm air) water pump 503; the warm air circuit 500 is connected through the warm air inlet and outlet of the integrated valve 200. The electric drive circuit 400 is provided to include a rear electric drive 401, a front electric drive 402 and an integrated controller 403; the electric drive circuit 400 is connected through the electric drive water inlet and outlet of the integrated valve 200; the Chiller circuit 700 is provided to include a (Chiller) water pump 602, and the Chiller circuit 700 is connected through the Chiller water inlet and outlet of the integrated valve 200; the radiator circuit 800 is provided to include a radiator 404. As an example, the radiator can be a motor radiator, and the radiator circuit 800 is connected through the radiator water inlet and outlet of the integrated valve 200.

[0053] In addition, in order to obtain the working condition of each coolant circuit in the thermal management system, the thermal management system may also additionally include at least one temperature sensor T, wherein the temperature sensor T may be respectively arranged in one or more of the power battery circuit 300, the electric drive circuit 400, the warm air circuit 500, the chiller circuit 700, the radiator circuit 800 and the cold air circuit 600. For example, Figure 2 As shown, the temperature sensor 51 is arranged in the warm air circuit 500 ; the temperature sensor 61 is arranged in the chiller circuit 700 ; and the temperature sensor 31 is arranged in the power battery circuit 300 .

[0054] Similarly, in order to obtain the working conditions of the refrigerant circuit 100, the refrigerant circuit 100 may also additionally include at least one temperature and pressure sensor disposed in the pipeline of the refrigerant circuit 100. For example, Figure 2 As shown, the temperature and pressure sensor 111 and the temperature and pressure sensor 121 are arranged in the pipeline of the refrigerant circuit 100 .

[0055] In the following exemplary embodiments, the integrated valve 200 including 12 water inlets and outlets will be taken as an example, and examples under specific connection relationships will be combined to illustrate the working principle of the thermal management system of the vehicle.

[0056] Refer again Figure 2 The radiator water outlet 1 of the integrated valve 200 is connected to the first end of the motor radiator 404, the second end of the motor radiator 404 is connected to the radiator water inlet 2 of the integrated valve 200, and the electric drive water inlet 5 of the integrated valve 200 is connected to the first end of the temperature sensor 41 in the electric drive circuit 400; the second end of the temperature sensor 41 in the electric drive circuit 400 is connected to the first end of the front electric drive 402, the first end of the front electric drive 402 is also connected to the first end of the rear electric drive 401, the second end of the rear electric drive 401 and the second end of the front electric drive 402 are also connected to the first end of the integrated controller 403, and the second end of the integrated controller 403 is connected to the electric drive water outlet 6 of the integrated valve 200.

[0057] The warm air water inlet 3 of the integrated valve 200 is connected to the first end of the warm air core 501, the second end of the warm air core 501 is connected to the first end of the heater 502, the second end of the heater 502 is connected to the first end of the liquid-cooled condenser 103; the second end of the liquid-cooled condenser 103 is connected to the first end of the temperature sensor 51 in the warm air circuit 500; the second end of the temperature sensor 51 in the warm air circuit 500 is connected to the first end of the (warm air) water pump 503; the second end of the warm air water pump 503 is connected to the warm air water outlet 4 of the integrated valve 200.

[0058] The cold air outlet 7 of the integrated valve 200 is connected to a first end of the cold air core 601 , and the second end of the cold air core 601 is connected to a warm air inlet 8 of the integrated valve 200 .

[0059] The chiller outlet 9 of the integrated valve 200 is connected to the first end of the (Chiller) water pump 602, the second end of the (Chiller) water pump 602 is connected to the first end of the battery chiller 101, the second end of the battery chiller 101 is connected to the first end of the temperature sensor 61 in the chiller circuit 700, the second end of the temperature sensor 61 in the chiller circuit 700 is connected to the chiller inlet 10 of the integrated valve 200; the battery outlet 11 of the integrated valve 200 is connected to the first end of the temperature sensor 31 in the power battery circuit 300, the power battery circuit 300 The second end of the temperature sensor 31 in 00 is connected to the first end of the three-way proportional regulating water valve 303, the second end of the three-way proportional regulating water valve 303 is respectively connected to the first end of the (battery) water pump 302 and the first end of the long-pass three-way valve 304, the third end of the three-way proportional regulating water valve 303 is connected to the first end of the one-way valve 305, the second end of the battery water pump 302 is connected to the first end of the power battery 301, the second end of the power battery 301 is connected to the second end of the long-pass three-way valve 304, the third end of the long-pass three-way valve 304 is connected to the second end of the one-way valve 305; the second end of the one-way valve 305 is connected to the battery water inlet 12 of the integrated valve 200.

[0060] In addition, the expansion tank TANK is connected to the thermal management system, for example, Figure 2 In the embodiment, the first end of the expansion water tank TANK can be connected to the second end of the (warm air) water pump 503; the second end of the expansion water tank TANK is connected to the first end of the (Chiller) water pump 602; the third end of the expansion water tank TANK is connected to the second end of the warm air core 501; the fourth end of the expansion water tank TANK is connected to the first end of the front electric drive 402.

[0061] Under the above connection relationship, the AC controller in the vehicle ( Figure 2 The refrigerant circuit 100, the power battery circuit 300, the electric drive circuit 400, the chiller circuit 700, the radiator circuit 800, the warm air circuit 500 and the cold air circuit 600 can be selectively connected through corresponding water inlets and outlets of the multiple water inlets and outlets included in the integrated valve 200 in response to the calibration value of the vehicle meeting the preset conditions, so as to achieve the corresponding air conditioning requirements of the vehicle. The working principle of the thermal management system under different working conditions when the water inlets and outlets included in the integrated valve 200 are in different connection states will be described below.

[0062] Figure 3 FIG2 shows a second schematic diagram of a vehicle thermal management system provided by an embodiment of the present application. Figure 3As shown, in this embodiment, the warm air water inlet 3 is connected to the radiator water outlet 1; the radiator water inlet 2 is connected to the electric drive water outlet 6; the electric drive water inlet 5 is connected to the warm air water outlet 4; at this time, under this connection relationship, the warm air circuit 500 can be connected in series with the electric drive circuit 400 and the radiator circuit 800 respectively; the (warm air) water pump 503 serves as the power source of the above series circuits; the chiller water outlet 9 is connected to the battery water inlet 12; the chiller water inlet 10 is connected to the battery water outlet 11 At this time, the power battery circuit 300 is connected in series with the Chiller circuit 700, and the power battery circuit 300 switches the conduction and short-circuit modes according to the states of the three-way proportional regulating water valve 303 and a long-pass three-way valve 304 included in the three-way valve circuit. The (battery) water pump 302 and the (Chiller) water pump 602 serve as the power sources of the above-mentioned series circuits; the cold air outlet 7 and the cold air inlet 8 are connected; at this time, the cold air circuit 600 has no power source and does not work, and the refrigerant circuit 100 works as needed.

[0063] The above-mentioned connectivity relationship in this example can realize the following working conditions based on the real-time data or control instructions collected by the AC controller based on various sensors set in the thermal management system: Working condition 1: The electric drive needs to dissipate heat, the battery has no demand, and the passenger compartment has no cooling or heating demand. The working condition (warm air) water pump 503 works, and the electric drive circuit 400 dissipates heat independently; the (battery) water pump 302 and the (Chiller) water pump 602 do not work, and the refrigerant circuit 100 does not work; Working condition 2: The electric drive needs to dissipate heat, the battery requires primary cooling, and the passenger compartment has no cooling or heating demand. The working condition (warm air) water pump 503 works, the electric drive circuit 400 dissipates heat independently; the (battery) water pump 302 works, the (Chiller) water pump 602 does not work, the A and C ports of the three-way proportional regulating water valve 303 are connected, the power battery 301 circulates independently and equalizes the temperature by itself; the refrigerant circuit 100 does not work; Working condition 3: The electric drive needs to dissipate heat, the battery requires secondary cooling, and the passenger compartment has no cooling or heating demand. The working condition (warm air) water pump 503 is working, and the electric drive circuit 400 dissipates heat independently; the (battery) water pump 302 and the (Chiller) water pump 602 are working, the A and B ports of the three-way proportional regulating water valve 303 are connected, and the power battery 301 circulates independently and equalizes the temperature by itself; the refrigerant circuit 100 is not working; working condition 4: there is no demand for electric drive, the battery requires a first or second level of cooling effect, and there is no demand for cooling or heating in the passenger compartment. The working condition (warm air) water pump 503 is not working, the (battery) water pump 302 and the (Chiller) water pump 602 determine the working state according to the state of the three-way proportional regulating water valve 303, the power battery 301 circulates independently and equalizes the temperature by itself; the refrigerant circuit 100 is not working; working condition 5: the electric drive needs to dissipate heat, the battery requires a third level or above of cooling, and there is no demand for cooling or heating in the passenger compartment. The working condition (warm air) water pump 503 works, and the electric drive circuit 400 dissipates heat independently; the (battery) water pump 302 and the (Chiller) water pump 602 work, the A and B ports of the three-way proportional regulating water valve 303 are connected, and the refrigerant in the battery Chiller 101 absorbs the heat of the cooling water circulating in the power battery circuit 300; the refrigerant circuit 100 works; working condition 6: there is no demand for electric drive, the battery requires a cooling effect of level 3 or above, and there is no demand for cooling or heating in the passenger compartment. The working condition (warm air) water pump 503 does not work; the (battery) water pump 302 and the (Chiller) water pump 602 work, the A and B ports of the three-way proportional regulating water valve 303 are connected, and the refrigerant in the battery Chiller 101 recovers the heat of the power battery circuit 300; the refrigerant circuit 100 works.

[0064] Figure 4 FIG3 shows a third schematic diagram of a vehicle thermal management system provided by an embodiment of the present application. Figure 4As shown, in this embodiment, the warm air water inlet 3 is connected to the radiator water outlet 1; the radiator water inlet 2 is connected to the electric drive water outlet 6; the electric drive water inlet 5 is connected to the warm air water outlet 4; at this time, under this connection relationship, the warm air circuit 500 can be connected in series with the electric drive circuit 400 and the radiator circuit 800 respectively; at this time, the power source is the (warm air) water pump 503; the cold air water inlet 8 is connected to the chiller water outlet 9; the chiller water inlet 10 is connected to the battery water outlet 11; the battery water inlet 12 is connected to the cold air water outlet 7 connection; at this time, under this connection relationship, the power battery circuit 300 is connected in series with the Chiller circuit 700 and the cold air circuit 600 respectively, when the A and B ports of the three-way proportional regulating water valve 303 are connected, the power sources are the (battery) water pump 302 and the (Chiller) water pump 602; when the A and C ports of the three-way proportional regulating water valve 303 are connected, the (Chiller) water pump 602 is the power source, the power battery circuit 300 is short-circuited and self-circulated, the (battery) water pump 602 is the power source, and the refrigerant circuit 100 works.

[0065] The above connectivity relationship in this example can realize the following working conditions through the AC controller based on the real-time data or control instructions collected by various sensors set in the thermal management system: Working condition 7: The electric drive needs to dissipate heat, the battery needs to be cooled at the first level, and the passenger compartment needs to be cooled. In the working condition, the Chiller circuit 700 is connected in series with the cold air circuit 600, the (Chiller) water pump 602 works, and the refrigerant circuit 100 works; the A and C ports of the three-way proportional regulating water valve 303 are connected, the power battery circuit 300 is temperature-averaged by itself, and the (battery) water pump 302 works; the (warm air) water pump 503 works, and the electric drive circuit 400 dissipates heat independently; Working condition 8: There is no demand for electric drive, no demand for battery, and there is a demand for cooling the passenger compartment. In the working condition, the Chiller circuit 700 is connected in series with the cold air circuit 600, the (Chiller) water pump 602 works, and the refrigerant circuit 100 works; the A and C ports of the three-way proportional regulating water valve 303 are connected, the (battery) water pump 302 does not work; the (warm air) water pump 503 does not work, and the electric drive circuit 400 does not work; working condition 9: the electric drive needs to dissipate heat, the battery requires level 3 or above cooling, and the passenger compartment needs cooling. In the working condition, the Chiller circuit 700 is connected in series with the cold air circuit 500 and the power battery circuit 300. When the A and B ports of the three-way proportional regulating water valve 303 are connected, the (Chiller) water pump 602 and the battery water pump 302 work, and the refrigerant circuit 100 works; the (warm air) water pump 503 works, and the electric drive circuit 400 dissipates heat independently; working condition 10: there is no demand for electric drive, the battery requires level 3 or above cooling, and the passenger compartment needs cooling. In the working condition, the Chiller circuit 700 is connected in series with the cold air circuit 600 and the power battery circuit 300. When the A and B ports of the three-way proportional regulating water valve 303 are connected, the (Chiller) water pump 602 and the (battery) water pump 302 work, and the refrigerant circuit 100 works; the (warm air) water pump 503 does not work, and the electric drive circuit 400 does not work.

[0066] Figure 5 FIG4 shows a fourth schematic diagram of a vehicle thermal management system provided by an embodiment of the present application. Figure 5 As shown, in this embodiment, the chiller water inlet 10 is connected to the radiator water outlet 1; the radiator water inlet 2 is connected to the chiller water outlet 9; at this time, the chiller circuit 700 is connected in series with the radiator circuit 800, and the power source is the (Chiller) water pump 602; the battery water inlet 12 is connected to the electric drive water outlet 6; the electric drive water inlet 5 is connected to the battery water outlet 11, and at this time, the power battery circuit 300 is connected in series with the electric drive circuit 400, and the A and B ports of the three-way proportional regulating water valve 303 are connected, and the power source is the (battery) water pump 302; the cold air outlet 7 is connected to the cold air inlet 8; at this time, the cold air circuit 500 is short-circuited; the warm air inlet 3 is connected to the warm air outlet 4, and at this time, the refrigerant circuit 100 works on demand.

[0067] The above connectivity relationship in this example can realize the following working conditions based on the real-time data or control instructions collected by the AC controller based on various sensors set in the thermal management system: Working condition 11: The residual heat of the electric drive is used to keep the battery warm, and there is no cooling or heating demand in the passenger compartment. In the working condition, the power battery circuit 300 recovers the residual heat of the electric drive circuit 400, the A and B ports of the three-way proportional regulating water valve 303 are connected, and the (battery) water pump 302 works; if there is no heating request in the passenger compartment, the (Chiller) water pump 602 does not work, the (warm air) water pump 503 does not work, and the refrigerant circuit 100 does not work; Working condition 12: The residual heat of the electric drive is used to keep the battery warm, and there is a heating demand in the passenger compartment. In the operating condition, waste heat is recovered, the power battery circuit 300 recovers waste heat from the electric drive circuit 400, the A and B ports of the three-way proportional regulating water valve 303 are connected, and the (battery) water pump 302 is working; the passenger compartment requests heating, the warm air circuit 500 is self-circulating, the liquid-cooled condenser 103 uses the heat in the air absorbed by the battery Chiller 101 to release heat to the warm air circuit 500, and at the same time the air source heat pump PTC502 heats, and the (warm air) water pump 503 works to provide power for the warm air circuit 500. At this time, the Chiller circuit 700 is connected in series with the radiator circuit 800, the (Chiller) water pump 602 works, and the refrigerant circuit 100 works (at this time it is the air source heat pump mode); the cold air circuit 600 is short-circuited and does not circulate.

[0068] Figure 6 FIG5 shows a fifth schematic diagram of a vehicle thermal management system provided by an embodiment of the present application. Figure 6 As shown, in this embodiment, the chiller outlet 9 is connected to the radiator inlet 2; the radiator outlet 1 is connected to the battery inlet 12; the battery outlet 11 is connected to the electric drive inlet 5; the electric drive outlet 6 is connected to the chiller inlet 10; the A and B ports of the three-way proportional regulating water valve 303 are connected; at this time, the chiller circuit 700, the power battery circuit 300, the electric drive circuit 400 and the motor radiator 404 are connected in series, and the power source is the (Chiller) water pump 602 and the (battery) water pump 302; the cold air outlet 7 is connected to the cold air inlet 8; at this time, the cold air circuit 400 is short-circuited and has no power source; the warm air inlet 3 is connected to the warm air outlet 4, and at this time, the warm air circuit 500 is short-circuited and self-circulated, and the (warm air) water pump 503 is the power source. The refrigerant circuit 100 works on demand.

[0069] The above connectivity relationship in this example can realize the following working conditions based on the real-time data or control instructions collected by the AC controller based on various sensors set in the thermal management system: Working condition 13: Heating demand for the passenger compartment. In the working condition, the refrigerant in the Chiller circuit 700 absorbs heat from the power battery circuit 300, the electric drive circuit 400 and the air, and releases heat to the warm air circuit 500 through the liquid-cooled condenser 103. At the same time, the water heater PTC502 works to heat. At this time, the three water pumps (i.e., (warm air) water pump 503, (battery) water pump 302 and (Chiller) water pump 602) are all working, the A and B ports of the three-way proportional regulating water valve 303 are connected, and the refrigerant circuit 100 is working (at this time, the refrigerant circuit 100 is in a parallel state of the air source heat pump and the water source heat pump); Working condition 14: The electric drive needs to dissipate heat, and the battery requires a first-level cooling. There is no demand for heating or cooling in the passenger compartment, and the (warm air) water pump 503 does not work under the operating condition. The power battery circuit 300 and the electric drive circuit 400 dissipate heat through the radiator circuit 800, the A and B ports of the three-way proportional regulating water valve 303 are connected, the (battery) water pump 302 works, the (Chiller) water pump 602 works, and the refrigerant circuit 100 does not work; under this operating condition, if the electric drive equipment (for example, the integrated controller, the rear electric drive, the front electric drive, etc.) is not started and the electric drive circuit 400 does not need to dissipate heat, the battery circuit 600 dissipates heat through the radiator circuit 800 alone, and the electric drive circuit 400 and the Chiller circuit 700 can be regarded as connecting pipelines.

[0070] Figure 7 FIG6 shows a sixth schematic diagram of a vehicle thermal management system provided by an embodiment of the present application. Figure 7 As shown, in this embodiment, the chiller water outlet 9 is connected to the battery water inlet 12; the battery water outlet 11 is connected to the electric drive water inlet 5; the electric drive water outlet 6 is connected to the chiller water inlet 10; the A and B ports of the three-way proportional regulating water valve 303 are connected; at this time, the chiller circuit 700 is connected in series with the power battery circuit 300 and the electric drive circuit 400, and the power sources are (Chiller) water pump 602 and (battery) water pump 302, and the other coolant circuits are independent of each other; the radiator water outlet 1 is connected to the radiator water inlet 2; the warm air inlet 3 is connected to the warm air outlet 4; the cold air outlet 7 is connected to the cold air inlet.

[0071] The above connectivity relationship in this example can realize the following operating conditions through the AC controller based on real-time data or control instructions collected by various sensors set in the thermal management system: Operating condition 15: The electric drive needs to dissipate heat, the battery requires a first or second level cooling effect, and the passenger compartment requires heating. In the operating condition, the Chiller circuit 700 absorbs the heat of the coolant in the power battery circuit 300 and the electric drive circuit 400, and releases heat to the warm air circuit 500 through the liquid-cooled condenser 103. At the same time, the water heater 502 releases heat to the warm air circuit 500. At this time, the three water pumps (i.e., (warm air) water pump 503, (battery) water pump 302 and (Chiller) water pump 602) are all working, the A and B ports of the three-way proportional regulating water valve 303 are connected, the cold air circuit 600 and the radiator circuit 800 are short-circuited respectively, and the refrigerant circuit 100 is working (at this time the refrigerant circuit 100 is in a water source heat pump state).

[0072] Figure 8 FIG7 shows a seventh schematic diagram of a vehicle thermal management system provided by an embodiment of the present application. Figure 8 As shown, in this embodiment, the chiller water outlet 9 is connected to the radiator water inlet 2; the radiator water outlet 1 is connected to the electric drive water inlet 5; the electric drive water outlet 6 is connected to the chiller water inlet 10; at this time, in this circuit, the chiller circuit 700 is connected in series with the electric drive circuit 400 and the motor radiator 404 respectively, and the power source is the (Chiller) water pump 602; the warm air water inlet 3 is connected to the battery water inlet 12; the battery water outlet 11 is connected to the warm air water outlet 4; the A port of the three-way proportional regulating water valve 303 is connected to the B and C ports as needed, respectively, at this time, the warm air circuit 500 is connected in series with the power battery circuit 300, and the power source is the (warm air) water pump 503 and the (battery) water pump 602; the cold air outlet 7 is connected to the cold air inlet 8; the cold air circuit 600 is short-circuited; the refrigerant circuit 100 works as needed.

[0073] The above connectivity relationship in this example can realize the following working conditions through the AC controller based on the real-time data or control instructions collected by various sensors set in the thermal management system: Working condition 16: The electric drive needs to dissipate heat, the battery needs to be heated or kept warm, and the passenger compartment has no cooling or heating requirements. The liquid-cooled condenser 103 in the working condition uses the air heat absorbed by the battery Chiller 101, and can choose to absorb the heat of the coolant in the electric drive circuit 400 at the same time according to needs. At this time, the water heater PTC502 is started and the liquid-cooled condenser 103 heats or keeps the power battery circuit 300 warm at the same time. The power battery circuit 300 is connected in series with the warm air circuit 500, and the A and B ports of the three-way proportional regulating water valve 303 are connected. The (warm air) water pump 503 and the (battery) water pump 602 works, the electric drive equipment in the electric drive circuit 400 works normally to generate heat, the (Chiller) water pump 602 works, and the heat of the outside air and the waste heat generated by the electric drive equipment in the electric drive circuit 400 are exchanged to the battery Chiller 101, and the refrigerant circuit 100 works (at this time, the refrigerant circuit 100 is in the air source heat pump, and it can independently choose whether to start the water source heat pump at the same time); Working condition 17: The electric drive needs to dissipate heat, the battery has no demand, and the passenger compartment needs to be heated. In the working condition, the liquid-cooled condenser 103 uses the air heat absorbed by the battery Chiller 101, and can choose to absorb the heat of the water circuit in the electric drive circuit 400 at the same time according to the demand. At this time, the water heater 502 is started and the liquid-cooled condenser 103 is simultaneously heated to the warm air circuit 5 00 heating, (warm air) water pump 503 works, the power battery circuit is short-circuited, the A and C ports of the three-way proportional regulating water valve 303 are connected, the (battery) water pump 302 does not work, the electric drive equipment in the electric drive circuit 400 works normally to generate heat, the (Chiller) water pump 602 works, and exchanges the heat of the outside air and the waste heat generated by the electric drive equipment in the electric drive circuit 400 to the battery Chiller 101, and the refrigerant circuit 100 works (at this time, the refrigerant circuit 100 is in the air source heat pump, and it can independently choose whether to start the water source heat pump at the same time); Working condition 18: The electric drive needs to dissipate heat, the battery needs to be heated or kept warm, and the passenger compartment needs to be heated. The working condition 103 uses the air heat absorbed by the battery Chiller 101, based on According to the demand, the heat of the electric drive circuit 400 can be absorbed at the same time. At this time, the water heater 502 is started and the liquid-cooled condenser 103 can heat the warm air circuit 500 and the power battery circuit 300 at the same time. The (warm air) water pump 503 and the (battery) water pump 302 are working. Depending on the battery insulation requirements, the three-way proportional regulating water valve 303 is selected to connect the A and C ports to short-circuit the power battery circuit 300, or the A and B ports of the three-way proportional regulating water valve 303 are connected to provide insulation for the power battery 301. The (Chiller) water pump 602 works to exchange the heat of the outside air to the battery Chiller 101, and the refrigerant circuit 100 works (at this time the refrigerant circuit 100 is in the air source heat pump, and you can choose whether to start the water source heat pump at the same time).

[0074] Fig. 9 FIG8 shows a schematic diagram of a vehicle thermal management system provided by an embodiment of the present application. Fig. 9 As shown, in this embodiment, the chiller water outlet 9 is connected to the electric drive water inlet 5; the electric drive water outlet 6 is connected to the chiller water inlet 10; at this time, the chiller circuit 700 is connected in series with the electric drive circuit 400, and the power source is the (Chiller) water pump 602; the warm air water inlet 3 is connected to the battery water inlet 12; the battery water outlet 11 is connected to the warm air water outlet 4; A and B of the three-way proportional regulating water valve 303 are connected as needed; at this time, the warm air circuit 500 is connected in series with the power battery circuit 300, and the power sources are the (warm air) water pump 602 and the (battery) water pump 302; the radiator water outlet 1 is connected to the radiator water inlet 2, and at this time, the radiator circuit 800 is short-circuited; the cold air outlet 7 is connected to the cold air inlet 8, and the cold air circuit 600 is short-circuited; at this time, the refrigerant circuit 100 is working.

[0075] The above connectivity relationship in this example can realize the following working conditions through the real-time data or control instructions collected by the AC controller based on various sensors set in the thermal management system: Working condition 19: The electric drive needs to dissipate heat, the battery needs to be heated or kept warm, and the passenger compartment has no cooling or heating requirements. The liquid-cooled condenser 103 in the working condition uses the heat in the electric drive circuit 400 absorbed by the battery Chiller 101 to heat or keep the battery circuit 400 warm. The power battery circuit 300 is connected in series with the warm air circuit 500, and the A and B ports of the three-way proportional regulating water valve 303 are connected. The (warm air) water pump 500 and the (battery) water pump 302 are working, and the (Chiller) water pump 602 is working to exchange the waste heat generated by the electric drive equipment in the electric drive circuit 400 to the battery Chiller 101, and the refrigerant circuit 100 is working (at this time the refrigerant circuit Working condition 20: the electric drive needs to dissipate heat, the battery needs to be heated or kept warm, and the passenger compartment needs to be heated. In the working condition, the liquid-cooled condenser 103 uses the heat of the electric drive circuit 400 absorbed by the battery Chiller 101. At this time, the heater PTC 502 is started and heats the warm air circuit 500 and the power battery circuit 300 at the same time as the liquid-cooled condenser 103. The (warm air) water pump 602 and the (battery) water pump 302 work, and the A and B ports of the three-way proportional regulating water valve 303 are connected. The electric drive equipment in the electric drive circuit 400 works normally to generate heat. The (Chiller) water pump 602 works to exchange the waste heat generated by the electric drive equipment in the electric drive circuit 400 to the battery Chiller 101, and the refrigerant circuit 100 works (at this time, the refrigerant circuit 100 is in the water source heat pump state).

[0076] Fig.10FIG9 shows a ninth schematic diagram of a thermal management system for a vehicle provided in an embodiment of the present application. Fig.10 As shown, in this embodiment, the electric drive water inlet 5 and the warm air outlet 4 are connected; the warm air water inlet 3 and the electric drive water outlet 6 are connected; at this time, the warm air circuit 500 is connected in series with the electric drive circuit 400, and the power source is the (warm air) water pump 503; the battery water inlet 12 and the chiller water outlet 9 are connected; the chiller water inlet 10 and the battery water outlet 11 are connected; at this time, the cold air circuit 600 and the radiator circuit 800 are short-circuited, and the battery chiller 101 is connected in series with the power battery circuit 300, but the (battery) water pump 302 and the (Chiller) water pump 602 do not work.

[0077] The above connectivity relationship in this example can realize the following operating conditions through the AC controller based on real-time data or control instructions collected by various sensors set in the thermal management system: Operating condition 22: The electric drive needs to dissipate heat, the battery has no demand, and the passenger compartment needs to be heated. In this operating condition, the electric drive circuit 400 is connected in series with the warm air circuit 500 to recover the waste heat of the electric drive equipment in the electric drive circuit 400 for heat preservation of the warm air circuit 500, the water heater PTC502 works as needed, the (warm air) water pump 503 works, and other circuits and the refrigerant circuit 100 do not work.

[0078] Based on the same application concept, the embodiments of the present application also provide a control method for a thermal management system of a vehicle corresponding to a thermal management system provided in the above embodiments. Since the principles of solving the problems by the control method in the embodiments of the present application are the same as those of the thermal management system of the vehicle in the above embodiments of the present application, the implementation of the control method can refer to the implementation of the thermal management system, and the repeated parts will not be repeated.

[0079] Fig.11 A flow chart of a method for controlling a thermal management system of a vehicle provided by an embodiment of the present application is shown. Fig.11 As shown, the control method is applied to an AC controller in a vehicle, comprising:

[0080] In step S101, it is determined whether the calibration value of the vehicle meets a predetermined condition;

[0081] In step S102, in response to the calibration value of the vehicle satisfying the preset conditions, the refrigerant circuit, power battery circuit, electric drive circuit, Chiller circuit, radiator circuit, warm air circuit and cold air circuit are controlled to be selectively connected through corresponding water inlets and outlets among the multiple water inlets and outlets included in the integrated valve to achieve the corresponding air-conditioning requirements of the vehicle.

[0082] Specifically, the calibration value of the vehicle can be obtained based on the real-time data or control instructions collected by the AC controller based on various sensors set in the thermal management system to determine whether the calibration value of the current vehicle meets the preset conditions. When the calibration value of the vehicle meets the preset conditions, the refrigerant circuit 100, the power battery circuit 300, the electric drive circuit 400, the Chiller circuit 700, the radiator circuit 800, the warm air circuit 500 and the cold air circuit 600 can be controlled to selectively connect through the corresponding water inlets and outlets of the multiple water inlets and outlets included in the integrated valve 200 to achieve the corresponding air conditioning requirements of the vehicle. Here, the specific implementation method can refer to the connection relationship suitable for the above working conditions mentioned above, which will not be repeated here.

[0083] Optionally, the refrigerant circuit 100 is disposed in a cabin of a vehicle.

[0084] Optionally, the refrigerant circuit 100 integrates a battery Chiller 101, an electric compressor 102, a liquid-cooled condenser 103, a liquid storage tank 104 and an electronic expansion valve 105 which are sequentially connected through pipelines;

[0085] The refrigerant flowing through the battery Chiller 101 exchanges heat with the coolant in the cold air circuit 600 through the first isolation laminate;

[0086] The refrigerant flowing through the liquid-cooled condenser 103 exchanges heat with the coolant in the warm air circuit 500 through the second isolation stack.

[0087] Optionally, the power battery circuit 300 includes a power battery 301 and a (battery) water pump 302; the power battery circuit 300 is connected through the battery water inlet and outlet of the integrated valve 200;

[0088] The cold air circuit 600 includes a cold air core 601; the cold air circuit 600 is connected through the cold air inlet and outlet of the integrated valve 200;

[0089] The warm air circuit 500 includes a warm air core 501, a water heater 502 and a (warm air) water pump 503; the warm air circuit 500 is connected through the warm air inlet and outlet of the integrated valve 200;

[0090] The electric drive circuit 400 is also provided with a rear electric drive 401, a front electric drive 402 and an integrated controller 403; the electric drive circuit 400 is connected through the electric drive water inlet and outlet of the integrated valve 200;

[0091] The chiller circuit 700 is also provided with a (Chiller) water pump; the chiller circuit 700 is connected through the chiller water inlet and outlet of the integrated valve 200 and the chiller water inlet and outlet of the battery chiller 101;

[0092] The radiator 800 circuit also includes a radiator 404 ; the radiator circuit 800 is connected via the radiator water inlet and outlet of the integrated valve 200 .

[0093] Optionally, the power battery circuit 300 is also provided with a three-way valve circuit; the power battery circuit 300 determines the temperature control mode of the power battery circuit 300 based on the conduction mode of the three-way valve circuit; the temperature control mode includes coolant heat exchange or battery self-circulation; the three-way valve circuit includes: a three-way proportional regulating water valve 303, a long-pass three-way valve 304 and a one-way valve 305.

[0094] Optionally, the thermal management system further includes at least one temperature sensor, which is respectively arranged in one or more of the power battery circuit 300 , the Chiller circuit 700 , the electric drive circuit 400 and the warm air circuit 500 .

[0095] Optionally, the refrigerant circuit 100 further includes at least one temperature and pressure sensor disposed in a pipeline of the refrigerant circuit.

[0096] Based on the same application concept, a vehicle corresponding to the thermal management system provided in the above embodiment is also provided in the embodiment of the present application, and the vehicle includes the thermal management system as described above, and the thermal management system can be arranged in the vehicle body, and the refrigerant circuit 100, the integrated valve 200, the power battery circuit 300, the Chiller circuit 700, the radiator circuit 800 and the electric drive circuit 400 included in the thermal management system are arranged in the vehicle's cabin; the warm air circuit 500 and the cold air circuit 600 are arranged in the vehicle's passenger compartment, wherein the connection and working principle of the thermal management system are the same as the above records and will not be repeated here.

[0097] In summary, the vehicle and its thermal management system provided according to the exemplary embodiment of the present application can not only meet the design requirements of a very simplified refrigerant circuit, but also be compatible with mainstream refrigerants and new refrigerants. The application of new refrigerants can meet future environmental protection needs, and the safety of using new refrigerants is effectively improved.

[0098] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working process of the system and device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. In the several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiment described above is only schematic. For example, the division of the unit is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or direct coupling or communication connection between each other shown or discussed can be through some communication interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0099] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a non-volatile computer-readable storage medium that can be executed by a processor. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program code. The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A thermal management system for a vehicle, characterized in that: The thermal management system includes: a refrigerant circuit, an integrated valve, a power battery circuit, an electric drive circuit, a chiller circuit, a radiator circuit, a warm air circuit and a cold air circuit; wherein the refrigerant is sealed in a closed component assembly formed by the refrigerant circuit, and the refrigerant circulating in the refrigerant circuit exchanges heat with the coolant in the warm air circuit or the cold air circuit respectively through multiple layers of isolation laminates; The AC controller in the vehicle responds to the calibration value of the vehicle satisfying the preset conditions, and controls the refrigerant circuit, power battery circuit, electric drive circuit, chiller circuit, radiator circuit, warm air circuit and cold air circuit to be selectively connected through corresponding water inlets and outlets among the multiple water inlets and outlets included in the integrated valve to achieve the corresponding air-conditioning requirements of the vehicle.

2. The thermal management system according to claim 1, characterized in that: The refrigerant circuit is disposed in an engine compartment of a vehicle.

3. The thermal management system according to claim 1, characterized in that: The refrigerant circuit integrates a battery chiller, an electric compressor, a liquid-cooled condenser, a liquid receiver and an electronic expansion valve which are sequentially connected through pipelines; The refrigerant flowing through the battery chiller exchanges heat with the coolant in the cold air circuit through the first isolation laminate; The refrigerant flowing through the liquid-cooled condenser exchanges heat with the coolant in the warm air circuit through the second isolation stack.

4. The thermal management system according to claim 3, characterized in that: The power battery circuit is provided with a power battery and a water pump; the power battery circuit is connected through the battery water inlet and outlet of the integrated valve; The cold air circuit is provided with a cold air core; the cold air circuit is connected through the cold air inlet and outlet of the integrated valve; The warm air circuit comprises a warm air core, a water heater and a water pump; the warm air circuit is connected through the warm air inlet and outlet of the integrated valve; The electric drive circuit is also provided with a rear electric drive, a front electric drive and an integrated controller; the electric drive circuit is connected through the electric drive water inlet and outlet of the integrated valve; The chiller circuit is also provided with a water pump; the chiller circuit is connected through the chiller water inlet and outlet of the integrated valve and the chiller water inlet and outlet of the battery chiller; The radiator circuit also includes a radiator; the radiator circuit is connected through the radiator water inlet and outlet of the integrated valve.

5. The thermal management system according to claim 4, characterized in that: The power battery circuit is also provided with a three-way valve circuit; the power battery circuit determines the temperature control mode of the power battery circuit based on the conduction mode of the three-way valve circuit; the temperature control mode includes coolant heat exchange or battery self-circulation; the three-way valve circuit includes: a three-way proportional regulating water valve, a long-pass three-way valve and a one-way valve.

6. The thermal management system according to claim 4, characterized in that: The thermal management system further includes at least one temperature sensor, which is respectively arranged in one or more of the power battery circuit, the chiller circuit, the electric drive circuit and the warm air circuit.

7. The thermal management system according to claim 3, characterized in that: The refrigerant circuit also includes at least one temperature and pressure sensor arranged in a pipeline of the refrigerant circuit.

8. A method for controlling a thermal management system of a vehicle, characterized in that: The thermal management system includes: a refrigerant circuit, an integrated valve, a power battery circuit, an electric drive circuit, a chiller circuit, a radiator circuit, a warm air circuit and a cold air circuit; wherein the refrigerant is sealed in a closed component assembly formed by the refrigerant circuit, and the refrigerant circulating in the refrigerant circuit exchanges heat with the coolant in the warm air circuit or the cold air circuit respectively through the multi-layer isolation laminate inside the chiller and the liquid-cooled condenser; The control method is applied to an AC controller in a vehicle, comprising: In response to the calibration value of the vehicle satisfying a preset condition, the refrigerant circuit, power battery circuit, electric drive circuit, chiller circuit, radiator circuit, warm air circuit and cold air circuit are controlled to be selectively connected through corresponding water inlets and outlets among the multiple water inlets and outlets included in the integrated valve to achieve the corresponding air-conditioning requirements of the vehicle.

9. A vehicle, comprising a vehicle body, characterized in that: It also includes a thermal management system as described in any one of claims 1 to 7, wherein the thermal management system is arranged on the vehicle body.

10. The vehicle according to claim 9, characterized in that The thermal management system includes a refrigerant circuit, an integrated valve, a power battery circuit, a chiller circuit, a radiator circuit and an electric drive circuit which are arranged in the engine compartment of the vehicle; the warm air circuit and the cold air circuit are arranged in the passenger compartment of the vehicle.

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