Cooling liquid system, thermal management system, control method therefor, electronic device, computer-readable storage medium and vehicle

Abstract

A cooling liquid system, a thermal management system (400), a control method therefor, an electronic device, a computer-readable storage medium and a vehicle. The cooling liquid system comprises an electric drive assembly (111), a low-temperature radiator (101), a cold core (121), a hot core (131), a battery (141) and at least two six-way valves. At least two of the electric drive assembly (111), the low-temperature radiator (101), the cold core (121), the hot core (131), and the battery (141) are connected by means of the at least two six-way valves, so as to form a cooling liquid circulation loop. The thermal management system (400) comprises a refrigerant system and a cooling liquid system; the refrigerant system comprises a refrigerant loop (1); the cooling liquid system comprises a cooling liquid circulation loop; the refrigerant loop (1) is coupled to the cooling liquid circulation loop. By means of the at least two six-way valves, the cooling liquid circulation loop is switched, so as to switch between different working modes of the thermal management system, simplifying the structure of the coupled thermal management system (400), regulating the temperature of an air conditioner and the battery (141), reducing the amount of a refrigerant charged, and improving the safety of the thermal management system (400).

Description

Coolant systems, thermal management systems and their control methods, electronic equipment, computer-readable storage media and vehicles

[0001] Cross-references to related applications

[0002] This disclosure is based on and claims priority to Chinese Patent Application No. 202411842187.X, filed on December 12, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of thermal management technology, and in particular to a coolant system, a thermal management system and its control method, electronic equipment, a computer-readable storage medium and a vehicle. Background Technology

[0004] The vehicle thermal management system comprises a refrigerant system and a coolant system. The refrigerant system includes a compressor, a water-cooled condenser, and a water-cooled evaporator. Existing refrigerant systems typically have two water-cooled evaporators to regulate the temperature of the battery and air conditioning system respectively. This increases the number of components in the coolant system, occupies more space, and has more complex piping, significantly increasing the complexity of the coupled vehicle thermal management system. The dual water-cooled evaporator arrangement increases the refrigerant charge, and since the new refrigerant (R290) is flammable and explosive, the higher refrigerant charge reduces the safety of the thermal management system. Summary of the Invention

[0005] The purpose of this disclosure is to provide a thermal management system and its control method, electronic equipment, computer-readable storage medium and vehicle, so as to simplify the structure of the thermal management system, reduce the refrigerant charge, and improve the safety of the thermal management system.

[0006] To achieve this objective, the present disclosure adopts the following technical solution:

[0007] The coolant system includes the electric drive assembly, a low-temperature radiator, a cold core, a warm core, a battery, and at least two six-way valves;

[0008] The electric drive assembly, the low-temperature radiator, the cold core, the warm core, and at least two of the battery are connected by at least two six-way valves to form a coolant circulation loop.

[0009] In some embodiments, the coolant system further includes a water-cooled condenser and a water-cooled evaporator; at least two of the six-way valves include a second valve, the second valve including a first interface group and a second interface group;

[0010] The water-cooled condenser is connected to the heating element, the low-temperature radiator and / or the electric drive assembly respectively through the first interface group, and the water-cooled evaporator is connected to the cooling element and / or the low-temperature radiator and / or the electric drive assembly respectively through the second interface group.

[0011] In some embodiments, the first interface group includes a first interface, a second interface and a third interface, and the second interface group includes a fourth interface, a fifth interface and a sixth interface;

[0012] The outlet, first interface, and third interface of the water-cooled condenser are connected to the heating core, and the outlet, first interface, and second interface of the water-cooled condenser are connected to the low-temperature radiator or the electric drive assembly.

[0013] The outlet, the fourth interface, and the sixth interface of the water-cooled evaporator are connected to the cold core; the outlet, the fourth interface, and the fifth interface of the water-cooled evaporator are connected to the low-temperature radiator or the electric drive assembly.

[0014] In some embodiments, the coolant system further includes a second pump installed in the coolant circulation loop and connected to the inlet or outlet of the water-cooled evaporator.

[0015] In some embodiments, the coolant system further includes a third pump installed in the coolant circulation loop and connected to the inlet or outlet of the water-cooled condenser.

[0016] In some embodiments, at least two of the six-way valves further include a first valve, the first valve including a third interface group and a fourth interface group;

[0017] The second valve is connected to the low-temperature radiator and / or the electric drive assembly via the third interface group, and the electric drive assembly is connected to the water-cooled condenser or the water-cooled evaporator via the fourth interface group.

[0018] In some embodiments, the third interface group includes a seventh interface, an eighth interface, and a ninth interface, and the fourth interface group includes a tenth interface, an eleventh interface, and a twelfth interface;

[0019] The second valve, the seventh port, the eighth port, the low-temperature radiator, and the electric drive assembly are connected; the second valve, the seventh port, the ninth port, and the electric drive assembly are also connected.

[0020] The electric drive assembly, the tenth interface, the eleventh interface, and the inlet of the water-cooled evaporator are connected; the electric drive assembly, the tenth interface, the twelfth interface, and the inlet of the water-cooled condenser are connected.

[0021] In some embodiments, the coolant system further includes a water-cooled condenser and a water-cooled evaporator; at least two of the six-way valves further include a third valve, the third valve including a fifth interface group and a sixth interface group;

[0022] The fifth interface group is connected to the water-cooled condenser, the heating element and the battery respectively; the battery is connected to the water-cooled condenser or the water-cooled evaporator through the sixth interface group.

[0023] In some embodiments, the fifth interface group includes a thirteenth interface, a fourteenth interface, and a fifteenth interface, wherein the thirteenth interface is selectively connected to the fourteenth interface and / or the fifteenth interface; the sixth interface group includes a sixteenth interface, a seventeenth interface, and an eighteenth interface, wherein the sixteenth interface is selectively connected to the seventeenth interface and / or the eighteenth interface;

[0024] The thirteenth interface is connected to the heating element, the fourteenth interface is connected to the inlet of the water-cooled condenser, the fifteenth interface is connected to the inlet of the battery, the sixteenth interface is connected to the outlet of the battery, the seventeenth interface is connected to the inlet of the water-cooled evaporator, and the eighteenth interface is connected to the inlet of the battery.

[0025] In some embodiments, the coolant system further includes a first pump installed in the coolant circulation loop, the first pump being connected to the inlet or outlet of the battery.

[0026] A thermal management system includes a refrigerant system and the aforementioned coolant system, wherein the refrigerant system includes a refrigerant circuit, the coolant system includes a coolant circulation circuit, and the refrigerant circuit is coupled to the coolant circulation circuit.

[0027] In some embodiments, the refrigerant circuit includes a compressor, a water-cooled condenser, an intermediate heat exchanger, and a water-cooled evaporator. A liquid storage tank is provided between the water-cooled condenser and the inlet of the first heat exchange channel of the intermediate heat exchanger. An expansion valve is provided between the outlet of the first heat exchange channel of the intermediate heat exchanger and the water-cooled evaporator. The second heat exchange channel of the intermediate heat exchanger is located between the compressor and the outlet of the water-cooled evaporator.

[0028] In some embodiments, the refrigerant circuit further includes a bypass branch, one end of which is connected between the outlet of the water-cooled evaporator and the second heat exchange channel of the intermediate heat exchanger, and the other end of which is connected between the outlet of the compressor and the inlet of the water-cooled condenser. A bypass valve is provided on the bypass branch.

[0029] A control method for a thermal management system, used to control the aforementioned thermal management system; the control method for the thermal management system includes:

[0030] In response to a target operating mode, at least two of the six-way valves are controlled to enable the thermal management system to operate under the target operating mode.

[0031] In some embodiments, the thermal management system has a first operating mode, and in response to the instruction of the first operating mode, the refrigerant circuit is opened, the first valve and the second valve are controlled, and the water-cooled condenser, the low-temperature radiator and the electric drive assembly are connected to form a circuit;

[0032] Controlling the second valve connects the water-cooled evaporator to the cold core to form a circuit; or controlling the third valve connects the water-cooled evaporator to the battery to form a circuit.

[0033] In some embodiments, the thermal management system has a second operating mode, which, in response to an instruction of the second operating mode, opens the refrigerant circuit, controls the second valve and the third valve, and connects the water-cooled condenser to the heating core to form a circuit and / or connects the water-cooled condenser to the battery to form a circuit;

[0034] Controlling the second valve and the first valve, the water-cooled evaporator, the low-temperature radiator, and the electric drive assembly form a circuit; or, the water-cooled evaporator and the electric drive assembly form a circuit.

[0035] In some embodiments, the thermal management system has a third operating mode, which, in response to the instruction of the third operating mode, opens the refrigerant circuit, controls the second and third valves, connects the water-cooled condenser to the heating core to form a circuit and / or connects the water-cooled condenser to the battery to form a circuit; controls the second and first valves, connects the water-cooled evaporator to the electric drive assembly to form a circuit;

[0036] Alternatively, the refrigerant circuit can be opened, the second valve and the first valve can be controlled, and the water-cooled evaporator can be connected to the electric drive assembly to form a circuit; the second valve and the third valve can be controlled, and the water-cooled condenser can be connected to the electric drive assembly to form a circuit; the water-cooled condenser, the heater core and the battery can be connected to form a circuit.

[0037] In some embodiments, the thermal management system has a fourth operating mode. In response to the instruction of the fourth operating mode, the refrigerant circuit is opened, and the second valve and the first valve are controlled to connect the water-cooled evaporator and the low-temperature radiator to form a circuit, or the water-cooled evaporator and the electric drive assembly to form a circuit; the water-cooled evaporator is also connected to the cold core to form a circuit; the second valve and the third valve are controlled to connect the water-cooled condenser and the warm core to form a circuit, or the water-cooled condenser, the warm core, and the battery are connected to form a circuit.

[0038] In some embodiments, the thermal management system has a fifth operating mode, and in response to the instructions of the fifth operating mode, controls the first valve, the second valve and the third valve, the water-cooled condenser is connected to the electric drive assembly to form a circuit, and the water-cooled condenser is also connected to the heating core to form a circuit.

[0039] In some embodiments, the thermal management system has a sixth operating mode, and in response to the instructions of the sixth operating mode, controls the first valve and the second valve to connect the water-cooled evaporator, the low-temperature radiator, and the electric drive assembly to form a loop; controls the third valve to connect the water-cooled evaporator and the battery to form a loop;

[0040] Alternatively, by controlling the first valve and the second valve, the water-cooled evaporator is connected to the electric drive assembly to form a circuit; by controlling the third valve, the water-cooled evaporator is connected to the battery to form a circuit.

[0041] Electronic devices, including:

[0042] At least one processor; and

[0043] A memory communicatively connected to the at least one processor; wherein,

[0044] The memory stores a computer program that can be executed by the at least one processor, which enables the at least one processor to perform the control method of the thermal management system described above.

[0045] A computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the control method of the aforementioned thermal management system.

[0046] Vehicles, including the aforementioned thermal management system.

[0047] This disclosure has at least the following beneficial effects:

[0048] The refrigerant circuit includes a water-cooled evaporator, and the switching of the coolant circulation circuit is achieved through at least two six-way valves to enable the switching of different operating modes of the thermal management system. This simplifies the structure and piping distribution of the coolant system, thereby simplifying the structure of the coupled thermal management system. It enables temperature regulation of the air conditioner and battery, reduces the refrigerant charge, thereby reducing the risk of safety accidents caused by flammable and explosive refrigerants and improving the safety of the thermal management system. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this disclosure and these drawings without creative effort.

[0050] Figure 1 is a layout diagram of the thermal management system in the first working mode provided in the embodiments of this disclosure;

[0051] Figure 2 is a layout diagram of the thermal management system in the second working mode provided in the embodiments of this disclosure;

[0052] Figure 3 is a layout diagram of the thermal management system for the first working condition of the third working mode provided in the embodiments of this disclosure;

[0053] Figure 4 is a layout diagram of the thermal management system for the second working condition of the third working mode provided in the embodiments of this disclosure;

[0054] Figure 5 is a layout diagram of the thermal management system for the fourth operating mode provided in the embodiments of this disclosure;

[0055] Figure 6 is a layout diagram of the thermal management system for the fifth operating mode provided in the embodiments of this disclosure;

[0056] Figure 7 is a layout diagram of the thermal management system for the sixth operating mode provided in the embodiments of this disclosure;

[0057] Figure 8 is a main flowchart of the control method of the thermal management system provided in the embodiment of this disclosure;

[0058] Figure 9 is a block diagram of an electronic device provided in an embodiment of this disclosure.

[0059] Figure reference numerals: 1. Refrigerant circuit; 110. Compressor; 120. Water-cooled condenser; 130. Water-cooled evaporator; 140. Expansion valve; 150. Bypass valve; 160. Liquid receiver; 170. Intermediate heat exchanger; 180. Bypass branch; 2. First valve; 1a. Seventh port; 1b. Eighth port; 1c. Ninth port; 3a. Tenth port; 3b. Eleventh port; 3c. Twelfth port; 3. Second valve; 4a. First port; 4b. Second port; 4c. Third port; 5a. Fourth port; 5b. Fifth port; 5c. Sixth port; 4. Third valve ; 6a, Thirteenth Interface; 6b, Fourteenth Interface; 6c, Fifteenth Interface; 7a, Sixteenth Interface; 7b, Seventeenth Interface; 7c, Eighteenth Interface; 5, First Pump; 6, Second Pump; 7, Third Pump; 8, Water-cooled Condenser Flow Path; 9, Water-cooled Evaporator Flow Path; 10, Low-Temperature Radiator Flow Path; 101, Low-Temperature Radiator; 11, Electric Drive Assembly Flow Path; 111, Electric Drive Assembly; 12, Cold Core Flow Path; 121, Cold Core; 13, Warming Core Flow Path; 131, Warming Core; 132, Electric Heater; 14, Battery Flow Path; 141, Battery; 15, Kettle Assembly; 400, Thermal Management System; 401, Memory; 402, Processor. Detailed Implementation

[0060] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the drawings, not the entire structure.

[0061] In the description of this disclosure, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0062] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0063] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0064] As shown in Figures 1 to 7, this embodiment proposes a thermal management system, which includes a refrigerant system and a coolant system. The refrigerant system includes a refrigerant circuit 1, and the coolant system includes a coolant circulation circuit. The refrigerant circuit 1 and the coolant circulation circuit are coupled to achieve temperature regulation of the battery 141 and the air conditioner.

[0065] As shown in Figure 1, in the refrigerant system, the refrigerant circuit 1 includes a compressor 110, a water-cooled condenser 120, an intermediate heat exchanger 170, and a water-cooled evaporator 130. A liquid storage tank 160 is provided between the inlet of the first heat exchange channel of the water-cooled condenser 120 and the intermediate heat exchanger 170. An expansion valve 140 is provided between the outlet of the first heat exchange channel of the intermediate heat exchanger 170 and the water-cooled evaporator 130. The second heat exchange channel of the intermediate heat exchanger 170 is located between the outlet of the compressor 110 and the outlet of the water-cooled evaporator 130. Specifically, when refrigerant circuit 1 is opened, compressor 110 compresses the low-temperature, low-pressure refrigerant gas and releases it into a high-temperature, high-pressure refrigerant gas. The high-temperature, high-pressure refrigerant dissipates heat at the water-cooled condenser 120 to heat the coolant flowing through the water-cooled condenser flow path 8, causing the coolant to heat up. The low-temperature refrigerant (after cooling down) passes through the liquid receiver 160, then through the first heat exchange channel of the intermediate heat exchanger 170, and enters the expansion valve 140. After being throttled by the expansion valve 140, it forms a low-temperature, low-pressure refrigerant. The low-temperature refrigerant solution absorbs heat from the coolant at the water-cooled evaporator 130, and then flows back to compressor 110 through the second heat exchange channel of the intermediate heat exchanger 170 to complete the thermodynamic cycle of the refrigerant. The coolant is cooled down by heat exchange at the water-cooled evaporator 130. In the intermediate heat exchanger 170, the low-temperature refrigerant solution in the first heat exchange channel and the low-temperature refrigerant solution in the second heat exchange channel exchange heat, so that the refrigerant in the first heat exchange channel further achieves a condensation effect, and the refrigerant in the second heat exchange channel absorbs heat and rises in temperature.

[0066] Furthermore, the refrigerant circuit 1 also includes a bypass branch 180. One end of the bypass branch 180 is connected between the outlet of the water-cooled evaporator 130 and the second heat exchange channel of the intermediate heat exchanger 170, and the other end of the bypass branch 180 is connected between the outlet of the compressor 110 and the inlet of the water-cooled condenser 120. A bypass valve 150 is provided on the bypass branch 180. Specifically, when in a low-temperature environment in winter (here, the low temperature is -15℃, but it can be flexibly set according to the actual situation), the ambient temperature of the outside air is low, and the coolant is difficult to absorb enough heat in the low-temperature radiator 101, resulting in an inability to rise to a higher temperature. Consequently, the refrigerant is difficult to absorb heat and rise in temperature at the water-cooled evaporator 130. At this time, expansion valve 140 and bypass valve 150 open simultaneously. A portion of the refrigerant at the outlet of compressor 110 flows back to compressor 110 after passing through bypass valve 150 and intermediate heat exchanger 170. This allows some refrigerant to circulate, be pressurized, and heated within bypass branch 180 to prepare high-temperature refrigerant gas, thereby meeting the heating requirements of air conditioning in low-temperature winter environments and overcoming the problems of compressor 110 failing to start or having limited power at low temperatures. The remaining portion of refrigerant at the outlet of compressor 110 flows sequentially through water-cooled condenser 120, liquid receiver 160, the first heat exchange channel of intermediate heat exchanger 170, expansion valve 140, water-cooled evaporator 130, and the second heat exchange channel of intermediate heat exchanger 170, finally flowing back to compressor 110. It should be noted that the aforementioned liquid receiver 160 serves to store refrigerant solution and also provides a certain degree of gas-liquid separation for the refrigerant. The refrigerant charged in the refrigerant system of this embodiment is R290 refrigerant. Of course, the refrigerant can also be R134a or CO2, etc.

[0067] Existing refrigerant systems typically have two water-cooled evaporators to regulate the temperature of the battery and air conditioning system respectively. This increases the number of components in the coolant system, occupies more space, and has more complex piping, significantly increasing the complexity of the coupled vehicle thermal management system. The dual water-cooled evaporator arrangement increases the refrigerant charge, and since the new refrigerant (R290) is flammable and explosive, the higher refrigerant charge reduces the safety of the thermal management system.

[0068] To address the aforementioned issues, as shown in Figures 1-7, this embodiment also proposes a coolant system. This liquid cooling system includes an electric drive assembly 111, a cryogenic radiator 101, a cooling core 121, a heating core 131, a battery 141, and at least two six-way valves. At least two of the electric drive assembly 111, cryogenic radiator 101, cooling core 121, heating core 131, and battery 141 are connected via at least two six-way valves to form a coolant circulation loop. The at least two six-way valves enable switching of the coolant circulation loop, allowing for switching between different operating modes of the thermal management system 400. This simplifies the structure and piping distribution of the coolant system, thereby simplifying the structure of the coupled thermal management system 400. It also enables temperature regulation of the air conditioner and battery 141, reduces the refrigerant charge, and thus reduces the risk of safety accidents caused by flammable and explosive refrigerants, improving the safety of the thermal management system 400.

[0069] As shown in Figure 1, the coolant system also includes a flow channel plate, a water pump assembly, and a water valve assembly. The flow channel plate has flow channels that communicate with multiple flow paths. The water pump assembly is mounted on the flow channel plate and communicates with the corresponding flow channels. The water valve assembly includes at least two six-way valves. The inlets of the flow channels are respectively connected to the low-temperature radiator flow path 10, the electric drive assembly flow path 11, the air conditioning flow path, the battery flow path 14, the water-cooled condenser flow path 8, and the water-cooled evaporator flow path 9. The air conditioning flow path includes a cold core flow path 12 and a warm core flow path 13 arranged in parallel, so as to heat and cool the cabin through the cold core 121 of the cold core flow path 12 and the warm core 131 of the warm core flow path 13, respectively. The water pump assembly and the water valve assembly are both integrated into the flow channel plate, which simplifies the structure of the thermal management system 400, realizes modular design and compact installation, and improves installation efficiency.

[0070] In this embodiment, the water valve assembly includes three six-way valves, all of which are proportional regulating valves with identical structures, thus unifying the modes and functions of the three water valves. By setting the proportional regulating valves, the proportion of coolant in each component of the low-temperature radiator 101, electric drive assembly 111, cold core 121, warm core 131, and battery 141 can be proportionally distributed, thereby enabling the switching of different thermal management operating modes.

[0071] As shown in Figures 1 to 7, the refrigerant circuit 1 is coupled to the coolant circulation circuit, so that the coolant system also includes a water-cooled condenser 120 and a water-cooled evaporator 130. At least two six-way valves include a second valve 3, which comprises a first interface group and a second interface group. The water-cooled condenser 120 is connected to the heating core 131, the low-temperature radiator 101, and / or the electric drive assembly 111 via the first interface group, and the water-cooled evaporator 130 is connected to the cooling core 121, the low-temperature radiator 101, and / or the electric drive assembly 111 via the second interface group. The presence of a water-cooled evaporator 130 in the refrigerant circuit 1 allows for temperature regulation of both the air conditioner and the battery 141, reducing the refrigerant charge and thus lowering the risk of safety accidents caused by flammable and explosive refrigerants, thereby improving the safety of the thermal management system 400.

[0072] Specifically, the first interface group includes a first interface 4a, a second interface 4b, and a third interface 4c, and the second interface group includes a fourth interface 5a, a fifth interface 5b, and a sixth interface 5c. The outlet of the water-cooled condenser 120, the first interface 4a, and the third interface 4c are connected to the warming core 131, and the outlet of the water-cooled condenser 120, the first interface 4a, and the second interface 4b are connected to the low-temperature radiator 101 or the electric drive assembly 111. The outlet of the water-cooled evaporator 130, the fourth interface 5a, and the sixth interface 5c are connected to the cold core 121. The outlet of the water-cooled evaporator 130, the fourth interface 5a, and the fifth interface 5b are connected to the low-temperature radiator 101 or the electric drive assembly 111. A second valve 3 is used to proportionally distribute the coolant in and out of the cold core flow path 12 and / or the warming core flow path 13.

[0073] In this embodiment, the coolant system further includes a second pump 6 and a third pump 7. The second pump 6 is installed in the coolant circulation loop and is connected to the inlet or outlet of the water-cooled evaporator 130, so that the second pump 6 can pump water into the inlet of the water-cooled evaporator 130 or draw water from the outlet of the water-cooled evaporator 130. The third pump 7 is installed in the coolant circulation loop and is connected to the inlet or outlet of the water-cooled condenser 120, so that the third pump 7 can pump water into the inlet of the water-cooled condenser 120 or draw water from the outlet of the water-cooled condenser 120. The second pump 6 is used to drive the coolant to flow through the water-cooled evaporator flow path 9, and the third pump 7 is used to drive the coolant to flow through the water-cooled condenser flow path 8. Both the second pump 6 and the third pump 7 are installed at the bottom of the flow channel plate to ensure that there is always coolant at the inlet of the two pumps, preventing the pumps from running dry and causing functional failure. The first valve 2, the second valve 3, and the third valve 4 are all installed at the bottom of the flow channel plate, so that the water pump assembly and the water valve assembly are integrated and installed at the bottom of the flow channel plate, achieving a compact arrangement of the water pump assembly and the water valve assembly.

[0074] As shown in Figures 1 to 7, at least two six-way valves also include a first valve 2, which comprises a third interface group and a fourth interface group. A second valve 3 is connected to the low-temperature radiator 101 and / or the electric drive assembly 111 via the third interface group. The electric drive assembly 111 is connected to the water-cooled condenser 120 or the water-cooled evaporator 130 via the fourth interface group. The first valve 2 is used to proportionally distribute the coolant entering and exiting the low-temperature radiator flow path 10 and / or the electric drive assembly flow path 11.

[0075] Specifically, the third interface group includes the seventh interface 1a, the eighth interface 1b, and the ninth interface 1c, and the fourth interface group includes the tenth interface 3a, the eleventh interface 3b, and the twelfth interface 3c. The second valve 3, the seventh interface 1a, the eighth interface 1b, the low-temperature radiator 101, and the electric drive assembly 111 are connected. The second valve 3, the seventh interface 1a, the ninth interface 1c, and the electric drive assembly 111 are connected. The electric drive assembly 111, the tenth interface 3a, the eleventh interface 3b, and the inlet of the water-cooled evaporator 130 are connected. The electric drive assembly 111, the tenth interface 3a, the twelfth interface 3c, and the inlet of the water-cooled condenser 120 are connected.

[0076] As shown in Figures 1 to 7, at least two six-way valves also include a third valve 4, which comprises a fifth interface group and a sixth interface group. The fifth interface group is connected to the water-cooled condenser 120, the heater core 131, and the battery 141, respectively; the battery 141 is connected to the water-cooled condenser 120 or the water-cooled evaporator 130 via the sixth interface group. The third valve 4 is used to proportionally distribute the coolant entering and exiting the battery flow path 14.

[0077] Specifically, the fifth interface group includes a thirteenth interface 6a, a fourteenth interface 6b, and a fifteenth interface 6c, with the thirteenth interface 6a selectively connected to the fourteenth interface 6b and / or the fifteenth interface 6c; the sixth interface group includes a sixteenth interface 7a, a seventeenth interface 7b, and an eighteenth interface 7c, with the sixteenth interface 7a selectively connected to the seventeenth interface 7b and / or the eighteenth interface 7c. The thirteenth interface 6a is connected to the heating core 131, the fourteenth interface 6b is connected to the inlet of the water-cooled condenser 120, and the fifteenth interface 6c is connected to the inlet of the battery 141; the sixteenth interface 7a is connected to the outlet of the battery 141, the seventeenth interface 7b is connected to the inlet of the water-cooled evaporator 130, and the eighteenth interface 7c is connected to the inlet of the battery 141.

[0078] In this embodiment, the coolant system further includes a first pump 5, which is installed in the coolant circulation loop. The first pump 5 is connected to the inlet or outlet of the battery 141, so that the first pump 5 can pump water into the inlet of the battery 141 or draw water from the outlet of the battery 141. The first pump 5 is also installed at the bottom of the flow channel plate to ensure that there is always coolant at the inlet of the first pump 5, preventing the first pump 5 from running dry and causing functional failure.

[0079] It should be noted that a control module is installed on the flow channel plate, and the water pump assembly, first valve 2, second valve 3, and third valve 4 are all communicatively connected to the control module. The signal acquisition of first pump 5, second pump 6, third pump 7, first valve 2, second valve 3, and third valve 4 is integrated into the same control module. The control module communicates with the vehicle via the CAN bus to achieve control and diagnosis of each controlled component.

[0080] Furthermore, a temperature sensor and a liquid level sensor are also installed on the flow channel plate. The temperature sensor measures the temperature of the coolant inside the flow channel, and the liquid level sensor measures the liquid level of the coolant inside the flow channel plate. Both the temperature sensor and the liquid level sensor are communicatively connected to the control module. The control module can also receive signals collected by the temperature sensor and the liquid level sensor, further improving the electronic control integration of the thermal management integrated module.

[0081] Specifically, this embodiment has five temperature sensors and two liquid level sensors. One temperature sensor is installed on the flow channel of the second pump 6, and another temperature sensor is installed at the outlet of the water-cooled evaporator 130 in the water-cooled evaporator flow path 9. These two temperature sensors are used to measure the temperature of the coolant entering and exiting the water-cooled evaporator 130. One temperature sensor is installed on the flow channel of the third pump 7, and another temperature sensor is installed at the outlet of the water-cooled condenser 120 in the water-cooled condenser flow path 8. These two temperature sensors are used to measure the temperature of the coolant entering and exiting the water-cooled condenser 120. One temperature sensor is installed on the flow channel of the first pump 5 to measure the temperature of the coolant entering the battery 141 circuit. Two liquid level sensors are installed on the flow channel plate to measure the liquid level of the coolant in the flow channel. A reservoir assembly 15 is also installed on the flow channel plate to store coolant for timely replenishment when the coolant flow rate in the flow channel decreases.

[0082] As shown in Figures 1 to 8, this embodiment also proposes a control method for a thermal management system, which is used in the aforementioned thermal management system 400. The control method for the thermal management system includes: controlling at least two six-way valves in response to a target operating mode, so that the thermal management system 400 operates in the target operating mode.

[0083] Specifically, as shown in Figures 1 to 7, the thermal management system 400 has at least a first operating mode, a second operating mode, a third operating mode, a fourth operating mode, a fifth operating mode, and / or a sixth operating mode. The operating modes are as follows:

[0084] As shown in Figure 1, the first operating mode is the cooling mode, which mainly includes air conditioning cooling and battery 141 cooling in summer, low-load cooling and supplemental heating in spring and autumn, and simultaneous cooling by battery 141 and air conditioning. Specifically, in response to the command of the first operating mode, the refrigerant circuit 1 is opened, and the first valve 2 and the second valve 3 are controlled to connect the water-cooled condenser 120, the low-temperature radiator 101, and the electric drive assembly 111 to form a circuit. The second valve 3 is controlled to connect the water-cooled evaporator 130 and the cold core 121 to form a circuit, or the third valve 4 is controlled to connect the water-cooled evaporator 130 and the battery 141 to form a circuit.

[0085] Specifically, when refrigerant circuit 1 is open, the high-temperature, high-pressure refrigerant discharged from compressor 110 releases heat in water-cooled condenser 120 and absorbs heat in water-cooled evaporator 130 to complete the thermodynamic cycle of the refrigerant system. At this time, bypass valve 150 is closed, expansion valve 140 throttles normally, controlling the subcooling at the outlet of water-cooled condenser 120. Along the connection path shown by the dotted line in Figure 1: third pump 7 operates independently, so that the coolant first passes through water-cooled condenser 120 in water-cooled condenser flow path 8 and absorbs the heat released by the refrigerant, cooling the refrigerant. The high-temperature coolant first releases heat to the outside through low-temperature radiator flow path 10, then passes through electric drive assembly flow path 11 to cool electric drive assembly 111, and finally returns to the inlet of third pump 7. The low-temperature coolant flowing out of second pump 6 (cooled by the refrigerant flowing through water-cooled evaporator 130) flows out into cold core flow path 12 after passing through the fourth port 5a and the sixth port 5c of second valve 3, and is cooled by cold core 121. Alternatively, the low-temperature coolant flowing from the second pump 6 flows into the battery flow path 14 to cool the battery 141. The sixteenth port 7a and the eighteenth port 7c of the third valve 4 are connected, allowing the coolant after cooling the battery 141 to flow back to the second pump 6. It should be noted that the flow rate of the coolant in the battery 141 is adjusted by regulating the opening ratio of the seventeenth port 7b. If the battery 141 is weakly cooled, the opening ratio of the seventeenth port 7b is smaller; if the battery 141 is strongly cooled, the opening ratio of the seventeenth port 7b is larger, thus controlling the cooling function of the battery 141. If the seventeenth port 7b of the third valve 4 is closed, the cooling function of the battery 141 is turned off.

[0086] It should be noted that in the various working modes shown in Figures 1 to 7, the dashed lines represent the connection relationship between the low-temperature radiator 101, electric drive assembly 111, cold core 121, warm core 131, battery 141 and the various flow channels, water pump components and water valve components in the flow channel plate of the above-mentioned thermal management integrated module.

[0087] As shown in Figure 2, the second operating mode is the heating mode, which mainly includes cabin heating and battery 141 heating. In low ambient temperatures (temperatures above -15°C), the refrigerant system provides heating for the cabin and battery 141, functioning as a normal heat pump system. The coolant absorbs heat from the outside air through the low-temperature radiator 101, and then transfers the absorbed heat to the refrigerant system through the water-cooled evaporator 130. This is equivalent to the refrigerant absorbing heat from the air, which is then discharged into the water-cooled condenser 120 via the compressor 110. Specifically, in response to the command for the second operating mode, the refrigerant circuit 1 is opened, and the second valve 3 and the third valve 4 are controlled, connecting the water-cooled condenser 120 to the heating element 131 to form a circuit and / or connecting the water-cooled condenser 120 to the battery 141 to form a circuit. Controlling the second valve 3 and the first valve 2, the water-cooled evaporator 130, the low-temperature radiator 101 and the electric drive assembly 111 are connected to form a circuit, or the water-cooled evaporator 130 and the electric drive assembly 111 are connected to form a circuit.

[0088] Along the connection path shown by the dashed line in Figure 2: the coolant discharged from the third pump 7 absorbs heat from the refrigerant in the water-cooled condenser 120, becoming a high-temperature coolant. It then flows through the first port 4a and the third port 4c of the second valve 3 (the second port 4b remains closed) to the heater core 131. The coolant in the heater core 131 is first heated by the electric heater 132 to raise its temperature, which is then used to heat the cabin via the air conditioning system (if cabin heating is not required, the air conditioning temperature damper can be closed). After passing through the thirteenth port 6a of the third valve 4, part of the coolant returns to the third pump 7 through the fourteenth port 6b, while the other part flows to the battery 141 through the fifteenth port 6c to heat the battery 141.

[0089] In the second operating mode, when the cabin is heated only by the air conditioning and the battery 141 does not require heating, the coolant flowing from the heater core 131 returns directly to the third pump 7 via the fourteenth port 6b of the third valve 4, and the fifteenth port 6c is closed. If heating of the battery 141 is required, the fifteenth port 6c is opened to heat the battery 141, and the coolant then returns to the third pump 7. Simultaneously, considering the temperature uniformity requirements of the battery 141, the coolant flow rate for heating and cooling the battery 141 is relatively large, so the first pump 5 operates independently, forming a battery circulation path. When the battery 141 is being heated or cooled, the sixteenth port 7a and the eighteenth port 7c of the third valve 4 are connected, and the seventeenth port 7b is completely closed.

[0090] In the second operating mode, the water-cooled evaporator flow path 9 is the main heat source for the compressor 110 to absorb heat. First, the coolant discharged from the second pump 6 heats the refrigerant in the water-cooled evaporator 130. The refrigerant absorbs heat and evaporates, returning to the compressor 110 to complete the refrigerant cycle. After the coolant is heated in the water-cooled evaporator 130, its temperature decreases. It flows through the fourth port 5a and the fifth port 5b of the second valve 3, and then connects with the eighth port 1b of the first valve 2 before returning to the low-temperature radiator 101. The low-temperature radiator 101 absorbs heat from the outside air, and then passes through the electric drive assembly 111, where the coolant absorbs the waste heat (or the active heat generated by the electric drive assembly 111). Finally, it passes through the tenth port 3a and the eleventh port 3b of the first valve 2 (at which time the twelfth port 3c is completely closed) before returning to the second pump 6 to complete the entire cycle.

[0091] If the ambient temperature is below -15°C, the coolant cannot absorb heat from the outside air, and the low-temperature radiator 101 is bypassed. Specifically, the eighth port 1b of the first valve 2 is closed, and the seventh port 1a and the ninth port 1c are connected to bypass the low-temperature radiator 101, using the waste heat of the electric drive assembly 111 as a low-temperature heat source.

[0092] As shown in Figures 3 and 4, the third operating mode is a low-temperature heating self-heating mode. In ambient temperatures below -15°C, the low-temperature radiator 101 cannot heat the coolant to a higher temperature, and the refrigerant has difficulty absorbing heat at the water-cooled evaporator 130 (the refrigerant density is very low at this time, insufficient to meet the heating needs of the air conditioner and battery 141). In response to the command for the third operating mode, the refrigerant circuit 1 is opened, and the second valve 3 and the third valve 4 are controlled, connecting the water-cooled condenser 120 to the heating core 131 to form a circuit and / or connecting the water-cooled condenser 120 to the battery 141 to form a circuit; the second valve 3 and the first valve 2 are controlled, connecting the water-cooled evaporator 130 to the electric drive assembly 111 to form a circuit. Alternatively, refrigerant circuit 1 can be opened, and the second valve 3 and the first valve 2 can be controlled to connect the water-cooled evaporator 130 and the electric drive assembly 111 to form a circuit; the second valve 3 and the third valve 4 can be controlled to connect the water-cooled condenser 120 and the electric drive assembly 111 to form a circuit; the water-cooled condenser 120, the heating element 131 and the battery 141 can be connected to form a circuit.

[0093] Specifically, along the connection path shown by the dashed line in Figure 3: the connection path of this working mode is basically the same as that of the second working mode, and will not be described again here. The main difference between this working mode and the second working mode is that the low-temperature radiator 101 is bypassed, and the heat of the electric drive assembly 111 is used as a low-temperature heat source to achieve stable operation of the heat pump system. The coolant is heated by the active heating of the electric drive assembly 111 or the waste heat of the electric drive assembly 111. At this time, the seventh port 1a and the ninth port 1c of the first valve 2 are connected to bypass the low-temperature radiator 101, so as to keep the temperature of the coolant in the entire water-cooled evaporator flow path 9 at a higher temperature range, and ensure that the evaporation pressure of the water-cooled evaporator 130 and the suction density of the compressor 110 are in a suitable state, thereby meeting the heating of the cabin.

[0094] When the waste heat or inefficient heat generation capacity of the electric drive assembly 111 is limited, a self-production and self-consumption working mode is adopted. As can be seen from the connection path shown by the dotted line in Figure 4, the connection path shown by the dotted line in Figure 3 and Figure 4 is basically the same, and will not be described again here. The main difference between Figure 3 and Figure 4 is that the high-temperature and high-pressure refrigerant discharged from the compressor 110 heats the coolant in the warm core flow path 13 through the water-cooled condenser 120. At the same time, the proportion is adjusted through the first port 4a, the second port 4b and the third port 4c of the second valve 3, so that most of the coolant flows from the third port 4c to the warm core 131, and a small part of the coolant flows out from the second port 4b. After passing through the seventh port 1a and the ninth port 1c of the first valve 2, it flows from the electric drive assembly 111 through the eleventh port 3b to the water-cooled evaporator 130. Then the heat of the coolant raises the temperature of the low-temperature coolant in the water-cooled evaporator 130, so that the refrigerant in the water-cooled evaporator 130 can absorb heat, allowing the compressor 110 to exert greater power and realize the self-production and self-consumption mode at low temperature. Thus, the electric heater 132 can be eliminated or its power reduced.

[0095] It should be noted that in the third operating mode, which simultaneously heats both the battery 141 and the cabin, the flow rate of coolant entering the battery 141 is adjusted by regulating the opening of the fourteenth port 6b and the fifteenth port 6c of the third valve 4 to achieve heating of the battery 141. For example, most of the coolant flows out from the fourteenth port 6b of the third valve 4, while a small portion enters the battery 141 from the fifteenth port 6c. The heating power of the battery 141 is flexibly adjusted by the proportional adjustment of the third valve 4. Simultaneously, to achieve temperature uniformity during battery heating, the first pump 5 operates independently to ensure that the flow rate of coolant in the battery flow path 14 reaches the set requirements.

[0096] As shown in Figure 5, the fourth operating mode is the heating and dehumidification mode, which is mainly used in spring and autumn. The air conditioner in the vehicle first cools and dehumidifies the air in the cabin through the cold core 121. The dehumidified air is then heated by the warm core 131, thereby achieving the function of heating and dehumidification. Specifically, in response to the command of the fourth operating mode, the refrigerant circuit 1 is opened, and the second valve 3 and the first valve 2 are controlled. The water-cooled evaporator 130 is connected to the low-temperature radiator 101 to form a circuit, or the water-cooled evaporator 130 is connected to the electric drive assembly 111 to form a circuit. The water-cooled evaporator 130 is also connected to the cold core 121 to form a circuit. The second valve 3 and the third valve 4 are controlled, and the water-cooled condenser 120 is connected to the warm core 131 to form a circuit, or the water-cooled condenser 120, the warm core 131, and the battery 141 are connected to form a circuit.

[0097] Specifically, along the connection path shown by the dashed line in Figure 5: In the coolant system, the circulation system of the fourth operating mode is basically the same as that of the second operating mode. The main difference is that in the fourth operating mode, part of the coolant flowing out of the fourth port 5a of the second valve 3 connects to the seventh port 1a of the first valve 2 through the fifth port 5b. Then it can flow from the eighth port 1b to the low-temperature radiator flow path 10 and the electric drive assembly flow path 11, or directly through the ninth port 1c to the electric drive assembly flow path 11, so that the coolant can absorb heat from the low-temperature radiator 101 or the electric drive assembly 111. The tenth port 3a of the first valve 2 connects to the eleventh port 3b, so that the coolant in the cold zone flows back to the inlet of the second pump 6. At the same time, the fourth port 5a of the second valve 3 also connects to the sixth port 5c, so that another part of the coolant flows into the cold core 121 to cool and dehumidify the cabin. Finally, this part of the coolant also flows back to the inlet of the second pump 6.

[0098] It should be noted that the first port 4a and the third port 4c of the second valve 3 are connected, allowing high-temperature coolant to flow into the heater core 131 to heat the cabin. The thirteenth port 6a and the fourteenth port 6b of the third valve 4 are connected, allowing the coolant after passing through the heater core 131 to return to the inlet of the third pump 7. Simultaneously, the fourteenth port 6b and the fifteenth port 6c of the third valve 4 can be proportionally adjusted to allow some coolant to enter the battery 141, thereby heating the battery 141 and achieving a combined function of cabin heating and dehumidification and battery 141 heating.

[0099] As shown in Figure 6, the fifth operating mode is the electric drive waste heat natural heating air conditioning mode. This mode is mainly used in spring and autumn, and in ambient temperatures ranging from 15°C to 20°C. In spring and autumn, the cabin is directly heated by utilizing the waste heat of the electric drive assembly 111, eliminating the need to turn on the compressor 110, thus achieving energy saving and consumption reduction. Specifically, in response to the command of the fifth operating mode, the first valve 2, the second valve 3, and the third valve 4 are controlled, connecting the water-cooled condenser 120 to the electric drive assembly 111 to form a circuit. The water-cooled condenser 120 is also connected to the heating core 131 to form a circuit.

[0100] Specifically, along the connection path shown by the dashed line in Figure 6: the refrigerant circuit 1 remains closed; the first port 4a of the second valve 3 is connected to the second port 4b; the second port 4b is connected to the seventh port 1a of the first valve 2; the seventh port 1a is connected to the ninth port 1c; and the tenth port 3a of the first valve 2 is connected to the twelfth port 3c. This allows the coolant to circulate between the water-cooled condenser 120 and the electric drive assembly 111 to heat the coolant. Simultaneously, the first port 4a of the second valve 3 is also connected to the third port 4c, and the thirteenth port 6a of the third valve 4 is connected to the fourteenth port 6b. This allows the heated coolant to flow to the heating element 131 to heat the cabin.

[0101] As shown in Figure 7, the sixth operating mode is the natural heating and cooling mode of battery 141. In the sixth operating mode, the cabin has no heating or cooling requirements, but battery 141 needs to be cooled or heated. For example, battery 141 needs to be cooled after fast charging in spring and autumn, or battery 141 needs to be cooled after fast charging in winter (the cabin has no heating or cooling requirements), or the residual heat from the electric drive assembly 111 at the end of the vehicle's journey can be used to heat battery 141. Specifically, in response to the command of the sixth operating mode, the first valve 2 and the second valve 3 are controlled to connect the water-cooled evaporator 130, the low-temperature radiator 101, and the electric drive assembly 111 to form a circuit; the third valve 4 is controlled to connect the water-cooled evaporator 130 and battery 141 to form a circuit. Alternatively, the first valve 2 and the second valve 3 are controlled to connect the water-cooled evaporator 130 and the electric drive assembly 111 to form a circuit; the third valve 4 is controlled to connect the water-cooled evaporator 130 and battery 141 to form a circuit.

[0102] Specifically, along the connection path shown by the dashed line in Figure 7: the coolant is cooled by air cooling through the low-temperature radiator 101, so that the cooled coolant can cool the battery 141. At this time, the second pump 6 is running, and the third pump 7 is not running. The fourth port 5a and the fifth port 5b of the second valve 3 are connected, and the seventh port 1a and the eighth port 1b of the first valve 2 are connected, so that the coolant passes sequentially through the water-cooled evaporator 130, the low-temperature radiator 101, and the electric drive assembly 111, and dissipates heat to the outside through the low-temperature radiator 101. The sixteenth port 7a and the seventeenth port 7b of the third valve 4 are connected, and the eighteenth port 7c is kept closed or open, so that the cooled coolant enters the battery 141 from the branch of the water-cooled evaporator 130 to cool the battery 141, and finally flows back to the inlet of the second pump 6 through the seventeenth port 7b.

[0103] It should be noted that if the battery 141 is heated by the waste heat of the electric drive assembly 111, then the connection path shown by the dotted line in Figure 7 is as follows: the second pump 6 runs, and the third pump 7 stops running. At this time, the fourth port 5a and the fifth port 5b of the second valve 3 are connected, the eighth port 1b of the first valve 2 is closed, and the seventh port 1a and the ninth port 1c are connected, bypassing the low-temperature radiator 101, so that the coolant passes through the water-cooled evaporator 130 and the electric drive assembly 111 in sequence, and is heated by the waste heat of the electric drive assembly 111. The sixteenth port 7a and the seventeenth port 7b of the third valve 4 are connected, and the eighteenth port 7c remains closed or open, so that the heated coolant enters the battery 141 from the branch of the water-cooled evaporator flow path 9 to heat the battery 141, and finally flows back to the inlet of the second pump 6 through the seventeenth port 7b.

[0104] In this embodiment, the thermal management system 400 can achieve cabin cooling and heating, as well as battery heating and cooling, through the air conditioning (cooling core 121 and heating core 131). It also includes waste heat recovery from the electric drive assembly 111 and heating functions at low temperatures. The low-temperature radiator 101 achieves condensation of the water-cooled condenser 120 and cooling of the electric drive assembly 111, and also absorbs heat from the outside air in winter as a heat source for the heat pump system. When the vehicle cabin and battery 141 are heated simultaneously in winter, the heating core 131 in the coolant system is connected in series with the battery 141, fully utilizing the difference in required water temperature (coolant temperature) between the cabin and battery 141 to maximize the heat of the coolant and improve energy efficiency. Simultaneously, by adjusting the opening of the fourteenth port 6b and the fifteenth port 6c of the third valve 4, the coolant ratio is adjusted to meet the higher water temperature requirements of the cabin and the limited inlet water temperature of the battery 141. When the vehicle is operating in low-temperature conditions during winter, the heating function of the battery 141 or the cabin is activated through a self-heating mode, thereby canceling or reducing the power of the electric heater 132 and reducing the energy consumption of the thermal management system 400. When the vehicle is operating in summer cooling conditions, the battery 141 and the cooling core 121 are connected in parallel to facilitate independent control of the cooling process of the battery 141 and the cabin, simplifying the control process.

[0105] As shown in Figure 9, this embodiment also proposes an electronic device including at least one processor 402 and a memory 401 communicatively connected to the at least one processor 402. The memory 401 stores a computer program executable by the at least one processor 402, which enables the at least one processor 402 to perform the control method of the aforementioned thermal management system. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or claimed herein.

[0106] This embodiment also provides a computer-readable storage medium storing a computer program that, when executed by processor 402, implements the control method of the thermal management system as described above.

[0107] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor 402, which may be a dedicated or general-purpose programmable processor 402, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0108] The program code used to implement the method itself can be written in any combination of one or more programming languages. This program code can be provided to a processor 402 or controller of a general-purpose computer, special-purpose computer, or other programmable data processing device, such that when executed by the processor 402 or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code can be executed entirely on the machine, partially on the machine, as a standalone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0109] In the context of this disclosure, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0110] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the computer. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0111] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or grid browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication grid). Examples of communication grids include local area networks (LANs), wide area networks (WANs), the Internet, and blockchain grids.

[0112] Computer systems can include clients and servers. Clients and servers are generally geographically separated and typically interact through a communication mesh. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, a hosting product within the cloud computing service system, addressing the shortcomings of traditional physical hosts and VPS (Virtual Private Server, or simply "VPS") services, such as high management difficulty and weak business scalability. Servers can also be servers in distributed systems or servers integrated with blockchain technology.

[0113] This embodiment also provides a vehicle, which includes a vehicle body and the aforementioned thermal management system 400, the thermal management system 400 being installed within the vehicle body. By integrating the water pump assembly and water valve assembly onto the flow channel plate, the structure of the thermal management integration module is simplified, achieving modular design and compact installation, saving layout space for the thermal management integration module, and improving installation efficiency. Simultaneously, the water valve assembly includes a first valve 2, a second valve 3, and a third valve 4 with identical structures. Each of the first valve 2, second valve 3, and third valve 4 integrates two three-way valves, achieving unified mode functions for the three water valves. This allows for switching of flow paths on the flow channel plate via the three water valves, thereby proportionally distributing coolant in each flow path of the low-temperature radiator flow path 10, the electric drive assembly flow path 11, the cold core flow path 12, the warm core flow path 13, and the battery flow path 14, realizing the switching of the thermal management operating mode of the thermal management integration module.

[0114] Furthermore, the above description is merely a preferred embodiment and the technical principles employed in this disclosure. Those skilled in the art will understand that this disclosure is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this disclosure. Therefore, although this disclosure has been described in detail through the above embodiments, this disclosure is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of this disclosure, the scope of which is determined by the scope of the appended claims.

Claims

1. A coolant system, characterized in that, Includes an electric drive assembly (111), a low-temperature radiator (101), a cold core (121), a warm core (131), a battery (141), and at least two six-way valves; The electric drive assembly (111), the low-temperature radiator (101), the cold core (121), the warm core (131) and the battery (141) are connected by at least two of the six-way valves to form a coolant circulation loop.

2. The coolant system according to claim 1, characterized in that, The coolant system also includes a water-cooled condenser (120) and a water-cooled evaporator (130); at least two of the six-way valves include a second valve (3), the second valve (3) including a first interface group and a second interface group; The water-cooled condenser (120) is connected to the heating core (131), the low-temperature radiator (101) and / or the electric drive assembly (111) respectively through the first interface group, and the water-cooled evaporator (130) is connected to the cooling core (121), the low-temperature radiator (101) and / or the electric drive assembly (111) respectively through the second interface group.

3. The coolant system according to claim 2, characterized in that, The first interface group includes a first interface (4a), a second interface (4b) and a third interface (4c), and the second interface group includes a fourth interface (5a), a fifth interface (5b) and a sixth interface (5c); The outlet, the first interface (4a), and the third interface (4c) of the water-cooled condenser (120) are connected to the heating core (131), and the outlet, the first interface (4a), and the second interface (4b) of the water-cooled condenser (120) are connected to the low-temperature radiator (101) or the electric drive assembly (111). The outlet of the water-cooled evaporator (130), the fourth interface (5a), and the sixth interface (5c) are connected to the cold core (121); the outlet of the water-cooled evaporator (130), the fourth interface (5a), and the fifth interface (5b) are connected to the low-temperature radiator (101) or the electric drive assembly (111).

4. The coolant system according to claim 2 or 3, characterized in that, The coolant system also includes a second pump (6), which is installed in the coolant circulation loop and is connected to the inlet or outlet of the water-cooled evaporator (130).

5. The coolant system according to any one of claims 2 to 4, characterized in that, The coolant system also includes a third pump (7), which is installed in the coolant circulation loop and is connected to the inlet of the water-cooled condenser (120) or the outlet of the water-cooled condenser (120).

6. The coolant system according to any one of claims 2 to 5, characterized in that, At least two of the six-way valves further include a first valve (2), which includes a third interface group and a fourth interface group; The second valve (3) is connected to the low-temperature radiator (101) and / or the electric drive assembly (111) through the third interface group, and the electric drive assembly (111) is connected to the water-cooled condenser (120) or the water-cooled evaporator (130) through the fourth interface group.

7. The coolant system according to claim 6, characterized in that, The third interface group includes a seventh interface (1a), an eighth interface (1b) and a ninth interface (1c), and the fourth interface group includes a tenth interface (3a), an eleventh interface (3b) and a twelfth interface (3c); The second valve (3), the seventh port (1a), the eighth port (1b), the low-temperature radiator (101), and the electric drive assembly (111) are connected; the second valve (3), the seventh port (1a), the ninth port (1c), and the electric drive assembly (111) are connected. The electric drive assembly (111), the tenth interface (3a), the eleventh interface (3b) and the inlet of the water-cooled evaporator (130) are connected; the electric drive assembly (111), the tenth interface (3a), the twelfth interface (3c) and the inlet of the water-cooled condenser (120) are connected.

8. The coolant system according to any one of claims 1 to 7, characterized in that, The coolant system also includes a water-cooled condenser (120) and a water-cooled evaporator (130); at least two of the six-way valves also include a third valve (4), the third valve (4) including a fifth interface group and a sixth interface group; The fifth interface group is connected to the water-cooled condenser (120), the heating element (131) and the battery (141) respectively; the battery (141) is connected to the water-cooled condenser (120) or the water-cooled evaporator (130) through the sixth interface group.

9. The coolant system according to claim 8, characterized in that, The fifth interface group includes a thirteenth interface (6a), a fourteenth interface (6b), and a fifteenth interface (6c), wherein the thirteenth interface (6a) is selectively connected to the fourteenth interface (6b) and / or the fifteenth interface (6c); the sixth interface group includes a sixteenth interface (7a), a seventeenth interface (7b), and an eighteenth interface (7c), wherein the sixteenth interface (7a) is selectively connected to the seventeenth interface (7b) and / or the eighteenth interface (7c); The thirteenth interface (6a) is connected to the heating element (131), the fourteenth interface (6b) is connected to the inlet of the water-cooled condenser (120), the fifteenth interface (6c) is connected to the inlet of the battery (141), the sixteenth interface (7a) is connected to the outlet of the battery (141), the seventeenth interface (7b) is connected to the inlet of the water-cooled evaporator (130), and the eighteenth interface (7c) is connected to the inlet of the battery (141).

10. The coolant system according to claim 8 or 9, characterized in that, The coolant system also includes a first pump (5), which is installed in the coolant circulation loop and is connected to the inlet or outlet of the battery (141).

11. A thermal management system, characterized in that, The system includes a refrigerant system and a coolant system according to any one of claims 1 to 10, wherein the refrigerant system includes a refrigerant circuit (1), the coolant system includes a coolant circulation circuit, and the refrigerant circuit is coupled to the coolant circulation circuit.

12. The thermal management system according to claim 11, characterized in that, The refrigerant circuit (1) includes a compressor (110), a water-cooled condenser (120), an intermediate heat exchanger (170), and a water-cooled evaporator (130). A liquid storage tank (160) is provided between the water-cooled condenser (120) and the inlet of the first heat exchange channel of the intermediate heat exchanger (170). An expansion valve (140) is provided between the outlet of the first heat exchange channel of the intermediate heat exchanger (170) and the water-cooled evaporator (130). The second heat exchange channel of the intermediate heat exchanger (170) is located between the compressor (110) and the outlet of the water-cooled evaporator (130).

13. The thermal management system according to claim 12, characterized in that, The refrigerant circuit (1) further includes a bypass branch (180), one end of which is connected between the outlet of the water-cooled evaporator (130) and the second heat exchange channel of the intermediate heat exchanger (170), and the other end of which is connected between the outlet of the compressor (110) and the inlet of the water-cooled condenser (120). A bypass valve (150) is provided on the bypass branch (180).

14. A control method for a thermal management system, characterized in that, A method for controlling a thermal management system according to any one of claims 11 to 13; the control method of the thermal management system includes: In response to a target operating mode, at least two of the six-way valves are controlled to enable the thermal management system to operate under the target operating mode.

15. The control method for the thermal management system according to claim 14, characterized in that, The thermal management system has a first working mode. In response to the instruction of the first working mode, the refrigerant circuit (1) is opened, and the first valve (2) and the second valve (3) are controlled. The water-cooled condenser (120), the low-temperature radiator (101) and the electric drive assembly (111) are connected to form a circuit. Controlling the second valve (3) connects the water-cooled evaporator (130) and the cold core (121) to form a circuit; or controlling the third valve (4) connects the water-cooled evaporator (130) and the battery (141) to form a circuit.

16. The control method for the thermal management system according to claim 14 or 15, characterized in that, The thermal management system has a second working mode. In response to the instruction of the second working mode, the refrigerant circuit (1) is opened, the second valve (3) and the third valve (4) are controlled, and the water-cooled condenser (120) is connected to the heating core (131) to form a circuit and / or the water-cooled condenser (120) is connected to the battery (141) to form a circuit. Controlling the second valve (3) and the first valve (2) connects the water-cooled evaporator (130), the low-temperature radiator (101), and the electric drive assembly (111) to form a circuit, or connects the water-cooled evaporator (130) and the electric drive assembly (111) to form a circuit.

17. The control method for the thermal management system according to any one of claims 14 to 16, characterized in that, The thermal management system has a third operating mode. In response to the command of the third operating mode, the refrigerant circuit (1) is opened, the second valve (3) and the third valve (4) are controlled, and the water-cooled condenser (120) is connected to the heating core (131) to form a circuit and / or the water-cooled condenser (120) is connected to the battery (141) to form a circuit; the second valve (3) and the first valve (2) are controlled, and the water-cooled evaporator (130) is connected to the electric drive assembly (111) to form a circuit; Alternatively, the refrigerant circuit (1) is opened, and the second valve (3) and the first valve (2) are controlled, so that the water-cooled evaporator (130) is connected to the electric drive assembly (111) to form a circuit; the second valve (3) and the third valve (4) are controlled, so that the water-cooled condenser (120) is connected to the electric drive assembly (111) to form a circuit; the water-cooled condenser (120), the heating element (131), and the battery (141) are connected to form a circuit.

18. The control method for the thermal management system according to any one of claims 14 to 17, characterized in that, The thermal management system has a fourth operating mode. In response to the command of the fourth operating mode, the refrigerant circuit (1) is opened, the second valve (3) and the first valve (2) are controlled, and the water-cooled evaporator (130) is connected to the low-temperature radiator (101) to form a circuit or the water-cooled evaporator (130) is connected to the electric drive assembly (111) to form a circuit; the water-cooled evaporator (130) is also connected to the cold core (121) to form a circuit; the second valve (3) and the third valve (4) are controlled, and the water-cooled condenser (120) is connected to the warm core (131) to form a circuit, or the water-cooled condenser (120), the warm core (131) and the battery (141) are connected to form a circuit.

19. The control method for the thermal management system according to any one of claims 14 to 18, characterized in that, The thermal management system has a fifth working mode. In response to the instructions of the fifth working mode, it controls the first valve (2), the second valve (3) and the third valve (4). The water-cooled condenser (120) is connected to the electric drive assembly (111) to form a circuit. The water-cooled condenser (120) is also connected to the heating core (131) to form a circuit.

20. The control method for the thermal management system according to any one of claims 14 to 19, characterized in that, The thermal management system has a sixth working mode. In response to the instructions of the sixth working mode, it controls the first valve (2) and the second valve (3) to connect the water-cooled evaporator (130), the low-temperature radiator (101), and the electric drive assembly (111) to form a loop; and controls the third valve (4) to connect the water-cooled evaporator (130) and the battery (141) to form a loop. Alternatively, by controlling the first valve (2) and the second valve (3), the water-cooled evaporator (130) is connected to the electric drive assembly (111) to form a circuit; by controlling the third valve (4), the water-cooled evaporator (130) is connected to the battery (141) to form a circuit.

21. An electronic device, characterized in that, include: At least one processor (402); as well as A memory (401) communicatively connected to the at least one processor (402); wherein, The memory (401) stores a computer program that can be executed by the at least one processor (402) to enable the at least one processor (402) to perform the control method of the thermal management system according to any one of claims 14 to 20.

22. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the control method of the thermal management system as described in any one of claims 14 to 20.

23. A vehicle, characterized in that, It includes a thermal management system according to any one of claims 11 to 13; and / or includes a coolant system according to any one of claims 1 to 10.

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