Integrated thermal management system, control method, and vehicle

Abstract

The application provides an integrated thermal management system, a control method and a vehicle, and the system comprises a controller, a seven-way valve integrated module, a battery circuit, a heating circuit and a motor circuit; wherein the seven-way valve integrated module is integrated with a seven-way valve, a water tank and three water pumps; the controller is used for generating a control instruction according to a thermal management mode, and the control instruction is used for controlling the communication state of the seven-way valve integrated module and the heating circuit, the battery circuit and the motor circuit; the three water pumps are connected in series with the battery circuit, the heating circuit and the motor circuit respectively; the seven-way valve is used for controlling the driving mechanism to drive the valve core to rotate according to the control instruction, and at least two target interface pipes in the seven interface pipes are communicated, so that the pipe openings of the target circuits connected with the at least two target interface pipes are communicated, and a thermal management circuit corresponding to the thermal management mode is formed. The application improves the integration of components, reduces the number of connecting pipes and the number of control motors.

Description

Technical Field

[0001] This application relates to the field of thermal management system technology, and in particular to an integrated thermal management system, control method, and vehicle. Background Technology

[0002] Current thermal management systems are becoming increasingly complex. While aiming to achieve more precise and comprehensive thermal control functions, this process is accompanied by a significant increase in the number of components and the expansion of system size. Particularly noteworthy is the widespread use of key components such as three-way valves, four-way valves, and water pumps, which directly leads to intricate internal piping. This not only exacerbates the complexity of control signals and increases demand, but also inevitably increases energy loss during transmission, posing a greater challenge to the already limited space resources inside the vehicle. Summary of the Invention

[0003] In view of this, this application provides an integrated thermal management system, control method and vehicle to solve the technical problems caused by the need to install multiple three-way valves and four-way valves in existing thermal management systems.

[0004] In a first aspect, embodiments of this application provide an integrated thermal management system, comprising: a controller, a seven-way valve integrated module, a battery circuit, a heating circuit, and a motor circuit. The seven-way valve integrated module integrates: a seven-way valve, a water tank, and three water pumps. The controller generates control commands according to a thermal management mode, which control the connection status between the seven-way valve integrated module and the heating circuit, battery circuit, and motor circuit. The three water pumps include a first water pump, a second water pump, and a third water pump. The first water pump is connected in series in the motor circuit, the second water pump is connected in series in the battery circuit, and the third water pump is connected in series in the heating circuit. At least one end of the water tank is connected to the motor circuit. The seven-way valve includes: seven interface pipes, a valve core, and a drive mechanism. The seven interface pipes are respectively connected to the battery circuit, heating circuit, and motor circuit. The seven-way valve controls the drive mechanism to rotate the valve core according to the control commands, connecting at least two target interface pipes among the seven interface pipes, so that the ports of the target circuits connected to the at least two target interface pipes are connected, forming a thermal management circuit corresponding to the thermal management mode.

[0005] Secondly, a control method for an integrated thermal management system is provided, which is applied to any of the integrated thermal management systems described in the embodiments of this application.

[0006] Thirdly, embodiments of this application provide a vehicle including any of the integrated thermal management systems described in the embodiments of this application.

[0007] In summary, the integrated thermal management system, control method, and vehicle provided in this application have at least the following beneficial effects: by connecting each loop to a highly integrated seven-way valve module, precise control of the connection state of each loop is achieved, forming different thermal management loops to meet different thermal management needs. Furthermore, the system structure is simplified, the number of connecting pipes in the system is reduced, the overall system volume is reduced, the energy conversion ratio between energy sources is improved, energy loss is reduced, and the number of valve controls is reduced, thus reducing the amount of control signals required. Therefore, not only can the efficiency and reliability of the thermal management system be improved, but the complexity and cost of the system are also reduced. Attached Figure Description

[0008] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This diagram illustrates the structure of an integrated thermal management system provided in an embodiment of this application.

[0010] Figure 2 This illustration shows a schematic diagram of another integrated thermal management system provided in an embodiment of this application;

[0011] Figure 3 This illustration shows a structural schematic diagram of a seven-way valve integrated module provided in an embodiment of this application;

[0012] Figure 4 This illustration shows a structural schematic diagram of yet another integrated thermal management system provided in an embodiment of this application;

[0013] Figure 5 This illustration shows a structural diagram of a vehicle provided in an embodiment of this application. Detailed Implementation

[0014] To make the above and other features and advantages of this application clearer, the application is further described below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explanation to those skilled in the art, and are exemplary only, not restrictive.

[0015] In the following description, numerous specific details are set forth to provide a thorough understanding of this application. However, it will be apparent to those skilled in the art that the specific details are not required to practice this application. In other instances, well-known steps or operations have not been described in detail to avoid obscuring this application.

[0016] Another aspect of this application provides an integrated thermal management system. Figure 1 This illustration shows a structural schematic diagram of an integrated thermal management system provided in an embodiment of this application, such as... Figure 1 As shown, the integrated thermal management system 10 may include: a controller 11, a seven-way valve integrated module 12, a battery circuit 13, a heating circuit 14, and a motor circuit 15.

[0017] The controller 11 establishes communication connections with the seven-way valve integrated module 12, the battery circuit 13, the heating circuit 13, and the motor circuit 14. The seven-way valve integrated module 12 is connected to the battery circuit 13, the heating circuit 14, and the motor circuit 15.

[0018] The controller 11 can be a vehicle controller, which can be used to generate control commands according to the thermal management mode, and can also be used to send control commands to the circuits related to the thermal management mode and the seven-way valve integrated module 12. Among them, the control commands are used to control the connection status between the seven-way valve integrated module 12 and the battery circuit 13, the heating circuit 14, and the motor circuit 15.

[0019] In addition, control commands can also be used to indicate the operating status of each circuit. The operating status of heating circuit 14 may include, but is not limited to, heating state, warm air state, and heated warm air state. The operating status of battery circuit 13 may include battery cooling state, battery no cooling state, and multiple battery heating states. The operating status of motor circuit 15 includes, but is not limited to, motor cooling state and motor no cooling state.

[0020] Figure 2 This application provides a schematic diagram of the structure of another integrated thermal management system, as shown in the embodiment. Figure 2 As shown, the integrated thermal management system 10 may further include an air conditioning circuit 16. The air conditioning circuit 16 is connected to the seven-way valve integrated module 12 via the battery circuit 13. A communication connection is established between the air conditioning circuit 16 and the controller 11. The air conditioning circuit 16 can exchange heat with the battery circuit 13, thereby reducing the temperature of the coolant in the battery circuit 13.

[0021] The controller 11 is used to send control commands to the air conditioning circuit 16. The control commands are also used to indicate the operating status of the air conditioning circuit 16. The operating status of the air conditioning circuit 16 may include the cooling status.

[0022] Figure 3 This illustration shows a structural schematic diagram of a seven-way valve integrated module provided in an embodiment of this application, as shown below. Figure 3 As shown, the seven-way valve integrated module 12 integrates: a seven-way valve 21, a water tank 22, and three water pumps 23. The three water pumps 23 are the first water pump 23a, the second water pump 23b, and the third water pump 23c.

[0023] The water tank 22 can be an expansion tank, with at least one end connected to the motor circuit 15. That is, the water tank 22 can be connected to the motor circuit 15 at one end or at both ends.

[0024] The water tank 22 can be used to replenish coolant to the motor circuit 15, and can also be used to remove air from the integrated thermal management system 10 to ensure the normal operation of the integrated thermal management system 10.

[0025] The first water pump 23a is connected in series in the motor circuit 15, the second water pump 23b is connected in series in the battery circuit 13, and the third water pump 23c is connected in series in the heating circuit 14.

[0026] The seven-way valve 21 includes a housing, a drive mechanism, a valve core, and seven interface pipes. Specifically, the seven interface pipes are disposed on the housing. The valve core is disposed inside the housing and is used to divide the housing cavity into multiple small cavities, each small cavity communicating with two interface pipes. The drive mechanism is used to drive the valve core to rotate, thereby changing the interface pipe communicating with each second cavity.

[0027] The seven interface tubes are respectively connected to the battery circuit 13, the heating circuit 14 and the motor circuit 15.

[0028] The seven-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the control command, so as to connect at least two target interface pipes among the seven interface pipes, so as to connect the pipe ports of the target circuit connected to at least two target interface pipes, forming a thermal management circuit corresponding to the thermal management mode.

[0029] It should be noted that the control commands involved in the embodiments of this application may include, but are not limited to, motor heat dissipation command, motor no heat dissipation command, battery heat dissipation command, battery no heat dissipation command, first battery heating command, second battery heating command, first passenger compartment heating command, second passenger compartment heating command, third passenger compartment heating command, fourth passenger compartment heating command, fifth passenger compartment heating command, battery cooling command, and motor cooling command.

[0030] Thermal management modes may include, but are not limited to, motor cooling mode, motor no cooling mode, battery cooling mode, battery no cooling mode, first battery heating mode, second battery heating mode, first passenger compartment heating mode, second passenger compartment heating mode, third passenger compartment heating mode, fourth passenger compartment heating mode, fifth passenger compartment heating mode, battery cooling mode, and motor cooling mode.

[0031] Thermal management circuits may include, but are not limited to, motor cooling circuits, motor cooling circuits, battery cooling circuits, battery cooling circuits, first battery heating circuits, second battery heating circuits, first passenger compartment heating circuits, second passenger compartment heating circuits, third passenger compartment heating circuits, fourth passenger compartment heating circuits, fifth passenger compartment heating circuits, battery cooling circuits, and motor cooling circuits.

[0032] Figure 4 This illustration shows a structural schematic diagram of yet another integrated thermal management system provided in an embodiment of this application. Figure 4 Controller 11 is not identified in the text.

[0033] like Figure 4 As shown, the motor circuit 15 includes a first output port, a second output port, and an input port. The seven-way valve 21 has seven interface pipes, namely the first interface pipe A, the second interface pipe B, the third interface pipe C, the fourth interface pipe D, the fifth interface pipe E, the sixth interface pipe F, and the seventh interface pipe G.

[0034] The seven-way valve 21 has seven connectors connected to the battery circuit 13, heating circuit 14, and motor circuit 15, respectively. These connectors can be configured as follows: First connector A is connected to the first output port of motor circuit 15; second connector B is connected to the input port of motor circuit 15; third connector C is connected to the second output port of motor circuit 15; fourth connector D is connected to the output port of battery circuit 13; fifth connector E is connected to the input port of battery circuit 13; sixth connector F is connected to the output port of heating circuit 14; and seventh connector G is connected to the input port of heating circuit 14.

[0035] like Figure 4 As shown, the motor circuit 15 may include a motor 151 and a heat sink 152. The motor circuit 15 can dissipate heat from the motor 151 through the heat sink 152.

[0036] The first water pump 23a is connected in series in the motor circuit 15. The connection relationship is as follows: the input port of the first water pump 23a is connected to the second interface pipe B, the output port of the first water pump 23a is connected to the input port of the motor 151, the output port of the motor 151 and the third interface pipe C are connected to the first port of the radiator 152, and the second port of the radiator 152 is connected to the first interface pipe A.

[0037] The port connected to the second interface pipe B serves as the input port of the motor circuit 15. The port connected to the first interface pipe A serves as the first output port of the motor circuit. The port connected to the third interface pipe C serves as the second output port of the motor circuit 15.

[0038] like Figure 4As shown, the battery circuit 13 includes a battery 131 and a heat exchanger 132. The battery circuit 13 can be used to cool or heat the battery 131 through the coolant in the circuit. The heat exchanger 132 is used for heat exchange between the battery circuit 13 and the air conditioning circuit 16.

[0039] The second water pump 23b is connected in series in the battery circuit 13. The connection relationship is as follows: the fifth interface pipe E is connected to the input port of the second water pump 23b, the output port of the second water pump 23b is connected to the first port H of the heat exchanger 132, the second port I of the heat exchanger 132 is connected to the input port of the battery 131, and the output port of the battery 131 is connected to the fourth interface pipe D.

[0040] It should be noted that the output port of battery 131 is connected to the fourth interface pipe D via a water pipe, and the port of connection between this water pipe and the fourth interface pipe D can serve as the output port of battery circuit 13. Another port of battery 131 is connected to the first heat exchanger 132 via a water pipe. Heat exchanger 132 is connected to the second water pump 23b via a water pipe. The port of connection between the second water pump 23b and the fifth interface pipe E can serve as the input port of battery circuit 13.

[0041] Heating circuit 14 is used to heat the coolant in the circuit. For example... Figure 4 As shown, the heating circuit 14 includes a water heater 141 and a warm air core 142. The water heater 141 can be a device capable of rapidly heating liquids. The warm air core 142 is used to generate hot air based on the coolant in the circuit and introduce it into the crew compartment.

[0042] The third water pump 23c is connected in series in the heating circuit 14. The connection relationship includes: the input port of the third water pump 23c is connected to the seventh interface pipe G, the output port of the third water pump 23c is connected to the input port of the water heater 141, the output port of the water heater 141 is connected to the input port of the warm air core 142, and the output port of the warm air core 142 is connected to the sixth interface pipe F.

[0043] If a motor is kept at a temperature exceeding its normal operating temperature for an extended period, its lifespan will be affected. Therefore, it is necessary to cool the motor down.

[0044] In some embodiments, the control commands include: motor cooling commands. Motor cooling commands can be commands to implement motor cooling functions, that is, commands to control the integrated thermal management system to implement the motor cooling mode in the thermal management mode.

[0045] The controller 11 is used to activate the radiator 152 and the first water pump 23a when the motor temperature exceeds the first preset temperature, and to send a motor cooling command to the seven-way valve 21.

[0046] The seven-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the motor cooling command, and connect the first interface pipe A and the second interface pipe B so that the input port of the motor circuit 15 is connected to the first output port, forming a motor cooling circuit corresponding to the motor cooling mode.

[0047] The first preset temperature involved in this application embodiment can be set according to vehicle design, motor characteristics, and safety standards, and is a safe critical value for motor temperature. Optionally, the first preset temperature can be 65 degrees Celsius.

[0048] In one embodiment of this application, the motor temperature refers to the current temperature of the motor. When the motor temperature is higher than a first preset temperature, it indicates that the motor is in a high-temperature state and other equipment is needed to assist in cooling it.

[0049] Specifically, when the controller 11 determines that the motor temperature is higher than the first preset temperature, the controller 11 will activate the radiator 152 to dissipate heat from the coolant in the motor circuit through the radiator 152, thereby reducing the temperature of the motor 151. The controller 11 will also activate the first water pump 23a.

[0050] The controller 11 also sends a motor cooling command to the seven-way valve 21. After receiving the motor cooling command from the controller 11, the seven-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the first interface pipe A and the second interface pipe B are connected, and the first output port of the motor circuit 15 is connected to the input port. That is, the radiator 132 is connected to the motor 151 through the first pipeline, forming a motor cooling circuit corresponding to the motor cooling mode.

[0051] In the motor cooling circuit, the coolant flowing from the radiator 152 flows to the first interface pipe A of the seven-way valve 21, and then flows through the valve core of the seven-way valve to the second interface pipe B. The coolant flowing from the second interface pipe B of the seven-way valve 21 flows to the input port of the motor circuit 15, and is pressurized along the pipeline by the first water pump 22a before flowing to the motor 151. Because the radiator 152 has a cooling function, the temperature of the coolant flowing from the radiator 152 is lower than the motor temperature. Therefore, the coolant flowing through the motor 151 can carry away the heat from the motor 151, thus cooling the motor 151. The coolant flowing out of the motor 151 heats up and flows back to the radiator 152 through the first pipeline for further cooling. In this way, the coolant circulates in the motor cooling circuit, thereby using the coolant to carry away the heat from the motor and using the radiator 152 to cool the coolant, achieving the purpose of motor cooling.

[0052] In some embodiments, the control commands may include motor cooling commands. A motor no-cooling command can be a command indicating that the battery temperature is within the normal temperature range and no additional cooling is required; that is, a command controlling the integrated thermal management system to implement a motor no-cooling mode in the thermal management mode.

[0053] The controller 11 is used to start the first water pump 23a and send a motor cooling command to the seven-way valve 21 when the motor temperature does not exceed the first preset temperature.

[0054] The seven-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the motor no-heating command, and connect the second interface pipe B and the third interface pipe C so that the input port of the motor circuit 15 is connected to the second output port, forming a motor no-heating circuit corresponding to the motor no-heating mode.

[0055] In one embodiment of this application, the controller 11 determines the difference between the motor temperature and a first preset temperature. When the motor temperature is not higher than the first preset temperature, the controller 11 sends a command to the seven-way valve 21 indicating that the motor has no heat dissipation. At the same time, the controller 11 also starts the first water pump 23a.

[0056] After receiving the motor cooling-free command sent by the controller 11, the seven-way valve 21 controls the valve core position by rotating the drive mechanism, so that the third interface pipe C is connected to the second interface pipe B, and the second output port of the motor circuit 15 is connected to the input port, that is, the first pipeline of the motor circuit 15 is connected to the motor, forming a motor cooling-free circuit corresponding to the motor cooling-free mode.

[0057] In this motor cooling circuit-free configuration, coolant flows out from the second port B of the seven-way valve 21, is pressurized by the first water pump 22a, and flows to the motor 133. The coolant flowing through the motor 133 then flows through the second pipeline to the third port C of the seven-way valve 21, and finally flows back to the second port B through the valve core of the seven-way valve 21. Thus, this motor cooling circuit-free configuration allows the heat generated by the motor during operation to be dissipated into the environment through natural heat dissipation without the need for additional cooling devices.

[0058] If a battery is kept outside its normal operating temperature for an extended period, its lifespan will be affected. Therefore, it is necessary to cool the battery down.

[0059] In some embodiments, the control commands include battery heat dissipation and cooling commands. These commands can be commands whereby the battery temperature exceeds the normal operating temperature, and the cooling requirements can be met by heat dissipation through the radiator 152; that is, commands that control the integrated thermal management system to implement the battery heat dissipation mode in the thermal management mode.

[0060] The controller 11 is used to activate the radiator 152 and the second water pump 23b, and send a battery cooling command to the seven-way valve 21 when the battery temperature does not exceed the second preset temperature but exceeds the third preset temperature.

[0061] The seven-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the battery heat dissipation command, connect the first interface pipe A and the fourth interface pipe D, and connect the third interface pipe C and the fifth interface pipe E, so that the input port of the battery circuit 13 is connected to the second output port of the motor circuit 15, and the output port of the battery circuit 13 is connected to the first output port of the motor circuit 15, forming a battery heat dissipation circuit corresponding to the battery heat dissipation mode.

[0062] The third preset temperature involved in this application embodiment is lower than the second preset temperature. The battery temperature can be the current temperature of the battery. The second and third preset temperatures can be set according to vehicle design, battery characteristics, and safety standards, and are used to measure whether the battery is in a low temperature state. Optionally, the second preset temperature can be 45 degrees Celsius, and the third preset temperature can be 35 degrees Celsius.

[0063] In one embodiment of this application, after the controller 11 determines that the battery temperature is not higher than the second preset temperature, it will continue to determine whether the battery temperature is higher than the third preset temperature. When the battery temperature is higher than the third preset temperature, the second water pump 23b and the radiator 152 will be started.

[0064] The controller 21 also sends a battery cooling command to the seven-way valve 21. After receiving the motor cooling command from the controller 11, the seven-way valve 21 controls the valve core position by rotating the drive mechanism, connecting the first interface pipe A with the fourth interface pipe D, and the third interface pipe C with the fifth interface pipe E. This connects the input port of the battery circuit 13 with the second output port of the motor circuit 15, and the output port of the battery circuit 13 with the first input port of the motor circuit 15. In other words, the battery circuit 13 is connected to the circuit where the radiator is located, forming a battery cooling circuit corresponding to the battery cooling mode.

[0065] In the battery cooling circuit, coolant flows from the third port C of the seven-way valve 21 into the second output port of the motor circuit 15, and then flows along the second and first pipelines into the radiator 152. Since the radiator 152 has a cooling function, the coolant flowing out of the radiator 152 is cooled. The cooled coolant flows to the first port A of the seven-way valve 21, and then through the valve core of the seven-way valve 21 to the fifth port E. The coolant flowing out of the fifth port E is pressurized by the second water pump 23b and flows to the first port H of the heat exchanger 132, and the coolant flowing out of the second port I of the heat exchanger 132 flows to the battery 131. The coolant flowing through the battery 131 carries away the heat from the battery 131 and flows to the fourth port D of the seven-way valve 21. The coolant flowing in from the fourth port D flows back to the third port C through the valve core. Thus, the coolant circulates in the battery cooling circuit, thereby using the coolant to carry away the battery heat and using the radiator to cool the coolant, achieving the purpose of battery cooling.

[0066] In some embodiments, the control command may include a battery no-heating command. The battery no-heating command can be a command indicating that the battery temperature is within the normal operating temperature range and requires no additional cooling; that is, a command controlling the integrated thermal management system to implement a battery no-heating mode in the thermal management mode.

[0067] The controller 11 is used to start the second water pump 23b and send a battery no-heating command to the seven-way valve 21 when the battery temperature does not exceed the third preset temperature.

[0068] The seven-way valve 21 is used to control the drive mechanism to rotate the valve core according to the battery no heat dissipation command, and connect the fourth interface pipe D and the fifth interface pipe E to connect the battery circuit and form a battery no heat dissipation circuit corresponding to the battery no heat dissipation mode.

[0069] In one embodiment of this application, the controller 11 determines whether the battery temperature is higher than a third preset temperature. When the battery temperature is not higher than the third preset temperature, the controller 11 starts the second water pump 23b and sends a battery no heat dissipation command to the seven-way valve 21.

[0070] After receiving the battery no-heating command sent by the controller 11, the seven-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the fourth interface pipe D and the fifth interface pipe E are connected, and the input port and output port of the battery circuit 13 are connected, forming a battery no-heating circuit corresponding to the battery no-heating mode.

[0071] In the battery cooling circuit, coolant flows from the fifth port E to the second water pump 23b, and after being pressurized by the second water pump 23b, flows to the battery 131. Coolant flowing out of the battery 131 flows through a pipeline into the first port H of the dual heat exchanger 132, and then flows out from its second port I. Coolant exiting the heat exchanger 132 flows to the fourth port D of the seven-way valve 21, and then flows back to the fifth port E through the valve core. Thus, this non-cooling circuit allows the heat generated by the battery during operation to be dissipated to the environment through natural heat dissipation without the need for additional cooling devices.

[0072] If a battery is kept at a low temperature for a long time, it will affect the battery output and also damage the battery. Therefore, the battery needs to be heated when the temperature is too low.

[0073] The integrated thermal management system provided in this application embodiment can use the waste heat of the motor to heat the battery, or it can use the heating circuit 14 to heat the battery.

[0074] In some embodiments, the control commands include a first battery heating command. The first battery heating command is used to effectively recover waste heat from the motor and use it for battery heating; that is, it controls the integrated thermal management system to implement a first battery heating mode in the thermal management mode.

[0075] The controller 11 is used to start the first water pump 23a and the second water pump 23b and send a first battery heating command to the seven-way valve 21 when the battery temperature does not exceed the fourth preset temperature and the motor temperature exceeds the first preset temperature.

[0076] The seven-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the first battery heating command, connect the third interface pipe C and the fifth interface pipe E, and connect the second interface pipe B and the fourth interface pipe D, so that the second output port of the motor circuit 15 is connected to the input port of the battery circuit 13, and the input port of the motor circuit 15 is connected to the output port of the battery circuit 13, forming a first battery heating circuit corresponding to the first battery heating mode.

[0077] In one embodiment of this application, the fourth preset temperature is lower than the third preset temperature. The fourth preset temperature can be set according to vehicle design, battery characteristics, and safety standards. Optionally, the fourth preset temperature can be 15 degrees Celsius.

[0078] A battery temperature not exceeding the fourth preset temperature indicates that the battery is in a medium-low temperature state and requires a small amount of additional heat. A motor temperature exceeding the first preset temperature indicates that the battery is in a high temperature state and has excess heat.

[0079] When the controller 11 determines that the motor temperature is higher than the first preset temperature and the battery temperature is lower than the fourth preset temperature, that is, the motor has more heat and the battery needs to be heated, it will start the first water pump 23a and the second water pump 23b, and send the first battery heating command to the seven-way valve 21.

[0080] After receiving the first battery heating command sent by the controller 11, the seven-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the third interface pipe C is connected to the fifth interface pipe E, and the second interface pipe B is connected to the fourth interface pipe D, so that the second output port of the motor circuit 15 is connected to the output port of the battery circuit 13, and the input port of the motor circuit 15 is connected to the output port of the battery circuit 13. The residual heat of the motor is used to heat the coolant flowing into the battery circuit, forming a first motor heating circuit corresponding to the first motor heating mode.

[0081] In the first battery heating circuit, coolant flows from the second port B of the seven-way valve 21 into the input port of the motor circuit 15, and is pressurized by the first water pump 23a before flowing to the motor 151. Since the temperature of the coolant flowing through the motor 151 is lower than the motor temperature, the coolant heats up, and the motor cools down. The heated coolant flows through the second pipeline to the third port C of the seven-way valve 21, and the coolant flowing from the third port C flows through the valve core to the fifth port E. The coolant flowing out of the fifth port E is pressurized by the second water pump 23b and flows to the first port H of the heat exchanger 132, and then from the second port I of the heat exchanger 132 to the battery 131. Since the heated coolant is higher than the battery temperature, the coolant heats the battery, and the coolant cools down. The cooled coolant flows through the pipeline to the fourth port D of the seven-way valve 21, and then flows back to the second port B through the valve core.

[0082] In this way, the coolant carries away the heat from the motor and flows from the motor circuit to the battery circuit, heating the battery, increasing the battery temperature, and reducing the motor temperature, thereby achieving the purpose of recovering heat from the motor and heating the battery.

[0083] In some embodiments, the control command includes a second battery heating command. The second battery heating command may be a command indicating that the battery is at a low temperature, the motor has no excess heat, and an additional heating device is needed for heating; that is, a command to control the integrated thermal management system to implement the second battery heating mode in the thermal management mode.

[0084] The controller 11 is used to start the water heater 141, the second water pump 22b and the third water pump 23c when the battery temperature does not exceed the fourth preset temperature and the motor temperature does not exceed the first preset temperature, and to send a second battery heating command to the seven-way valve 21.

[0085] The seven-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the second battery heating command, connecting the fourth interface pipe D and the seventh interface pipe G, and connecting the fifth interface pipe E and the sixth interface pipe F, so that the input port of the heating circuit 14 is connected to the output port of the battery circuit 13, and the output port of the heating circuit 14 is connected to the input port of the battery circuit 13, forming a second battery heating circuit corresponding to the second battery heating mode.

[0086] In one embodiment of this application, when the controller 11 determines that the battery temperature is lower than the fourth preset temperature and the motor temperature does not exceed the first preset temperature, that is, when the controller 11 determines that the battery needs heat and the motor does not have excess heat, the controller 11 controls the heating circuit 14 to heat the battery circuit 13. Specifically, the controller 11 will start the water heater 141, the second water pump 23b, and the third water pump 23c.

[0087] The controller 11 generates a second battery heating command and sends it to the seven-way valve 21. Upon receiving the command, the seven-way valve 21 controls the valve core position by rotating the drive mechanism, connecting the fourth interface pipe D to the seventh interface pipe G, and connecting the sixth interface pipe F to the fifth interface pipe E. This connects the output port of the battery circuit 13 to the input port of the heating circuit 14, and vice versa, thus connecting the battery circuit 13 and the heating circuit 14 to form a second battery heating circuit corresponding to the second battery heating mode.

[0088] In the second battery heating circuit, the coolant flowing from the seventh port G of the seven-way valve 21 is pressurized by the third water pump 23c and flows to the water heater 141. After being heated by the water heater 141, the coolant flows through the heater core 142 to the sixth port F of the seven-way valve 21. The heated coolant flowing into the sixth port F flows through the valve core into the fifth port E, and the coolant flowing out of the fifth port E flows through the second water pump 23b into the first port H of the heat exchanger 132, and flows from the second port I of the heat exchanger 132 to the battery 131. Since the heated coolant is hotter than the battery, it heats the battery and cools down. The cooled coolant flows through the pipeline to the fourth port D of the seven-way valve 21 and flows back to the seventh port G through the valve core.

[0089] It should be noted that in the second battery heating mode, the heater core 142 is not activated. Therefore, the heater core does not provide heat to the passenger compartment.

[0090] In this way, the heated coolant in the heating circuit 14 is used to heat up the battery 131, thereby providing the battery with the required heat and raising the battery temperature. This allows the battery to be heated when the battery temperature is too low, ensuring that the battery can operate under safe temperature conditions.

[0091] To ensure passenger comfort, the integrated thermal management system can provide heat to the passenger compartment when it is in a low-temperature state. Furthermore, the integrated thermal management system will create a reasonable thermal management loop based on whether there is excess heat in the battery and motor.

[0092] In some embodiments, the control commands include a first passenger compartment heating command. The first passenger compartment heating command is a type of passenger compartment heating command. A passenger compartment heating command refers to a command used to implement the passenger compartment heating function. Specifically, the first passenger compartment heating command instructs the use of the instantaneous water heater 141 to heat the passenger compartment when there is no excess heat in the battery and motor.

[0093] When the controller 11 receives a request for heating in the passenger compartment and the battery temperature does not exceed the third preset temperature and the motor temperature does not exceed the first preset temperature, the controller 11 starts the water heater 141, the warm air core 142 and the third water pump 23c.

[0094] The seven-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the first crew cabin heating command, and connect the sixth interface pipe F and the seventh interface pipe G so that the heating circuit 14 is connected to form the first crew cabin heating circuit corresponding to the first crew cabin heating mode.

[0095] In one embodiment of this application, after receiving a passenger compartment heating request, the controller 11 determines whether the battery temperature exceeds a third preset temperature and whether the motor temperature exceeds a first preset temperature. If the battery temperature does not exceed the first preset temperature and the motor temperature does not exceed the first preset temperature, that is, when the battery 131 and the motor 151 cannot provide heat to the passenger compartment, the controller 11 generates and sends a first passenger compartment heating command to the seven-way valve 21, and starts the third water pump 23c, the heater core 142, and the water heater 141.

[0096] It should be noted that crew cabin heating requests can be generated by the user through operations on the control panel or automatically when the crew cabin temperature is low.

[0097] After receiving the first crew cabin heating command sent by the controller 11, the seven-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the seventh interface pipe G and the sixth interface pipe F are connected, and the input port and output port of the heating circuit 14 are connected, forming a first crew cabin heating circuit corresponding to the first crew cabin heating mode.

[0098] In the first crew cabin heating circuit, the coolant flowing from the seven-port pipe G of the seven-way valve 21 is pressurized by the third water pump 23c and then flows into the water heater 141. The water heater 141 heats the coolant in the circuit, and the heated coolant flows into the heater core 142. The heater core 142 generates hot air, which is then sent into the crew cabin through the air duct. The coolant flowing out of the heater core 142 cools down, flows through the pipeline into the six-port pipe F of the seven-way valve 21, and then flows back to the seven-port pipe G of the seven-way valve 21 through the valve core. In this way, the first crew cabin heating circuit achieves the purpose of heating the crew cabin by heating the coolant with the water heater 141 and transferring the heat from the heated coolant to the air in the crew cabin through the heater core 142.

[0099] In some embodiments, the control commands include a second passenger compartment heating command. The second passenger compartment heating command is also a type of passenger compartment heating command. Specifically, when the motor has excess heat and the battery also requires heat, the second passenger compartment heating command instructs the motor's heat to be used first to heat the battery, and then to heat the passenger compartment.

[0100] The controller 11 is used to start the heater core 141, the first water pump 23a, the second water pump 23b and the third water pump 23c when it receives a crew cabin heating request, the motor temperature does not exceed the fifth preset temperature and the battery heating priority condition is met, and to send a second crew cabin heating command to the seven-way valve 21.

[0101] The seven-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the second crew cabin heating command, connecting the third interface pipe C and the fifth interface pipe E, connecting the fourth interface pipe D and the seventh interface pipe G, and connecting the second interface pipe B and the sixth interface pipe F, so that the input port of the battery circuit 13 is connected to the second output port of the motor circuit 15, the output port of the battery circuit 13 is connected to the input port of the heating circuit 14, and the output port of the heating circuit 14 is connected to the input port of the motor circuit 15, forming a second crew cabin heating circuit corresponding to the second crew cabin heating mode.

[0102] The battery heating priority condition involved in the embodiments of this application can refer to the condition for determining priority heating of the battery. Optionally, the battery heating priority condition can be that the heat demand of the battery is greater than the heat demand of the passenger compartment. The fifth preset temperature is higher than the first preset temperature, but does not exceed the allowable battery temperature. Optionally, the fifth preset temperature is 50 degrees Celsius.

[0103] Upon receiving a passenger compartment heating request, controller 11 determines whether the motor temperature exceeds the fifth preset temperature, whether the battery temperature is below the fourth preset temperature, and whether the battery heating priority condition is met. If the passenger compartment requires heating, the motor temperature is above the first preset temperature but not exceeding the fifth preset temperature, the battery is at a low temperature, and the battery heating priority condition is met, controller 11 generates and sends a second passenger compartment heating command to the seven-way valve 21, and activates the heater core 141, the first water pump 23a, the second water pump 23b, and the third water pump 23c.

[0104] After receiving the second crew cabin heating command sent by the controller 11, the seven-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the fifth interface pipe E is connected to the third interface pipe C, the fourth interface pipe D and the seventh interface pipe G are connected, and the sixth interface pipe F and the second interface pipe B are connected. Thus, the input port of the battery circuit 13 is connected to the second output port of the motor circuit 15, the output port of the battery circuit 13 is connected to the input port of the heating circuit 14, and the output port of the heating circuit 14 is connected to the input port of the motor circuit 15, forming a second crew cabin heating circuit corresponding to the second crew cabin heating mode.

[0105] In the heating circuit of the second crew compartment, the coolant flowing from the second port pipe B of the seven-way valve 21 is pressurized by the first water pump 23a and flows to the motor 151. Since the temperature of the coolant flowing through the motor 151 is lower than the motor temperature, the coolant flowing through the motor 151 heats up, while the motor cools down. The heated coolant flows through the second pipeline to the third port pipe C of the seven-way valve 21, and the coolant flowing into the third port pipe C flows through the valve core to the fifth port pipe E.

[0106] The coolant flowing from the fifth port E is pressurized by the second water pump 23b and flows to the first port H of the heat exchanger 132, and then flows to the battery 131 from the second port I of the heat exchanger 132. Since the heated coolant is hotter than the battery, it heats the battery and cools down. The cooled coolant then flows through a pipeline to the four-way port D of the seven-way valve 21, and then through the valve core to the seventh port G.

[0107] The coolant flowing from the seventh interface pipe G is pressurized by the third water pump 23c and flows to the instantaneous water heater 141. The coolant then flows through the instantaneous water heater 141 into the heater core 142, where it generates hot air, which is then delivered into the passenger compartment through air ducts. The coolant flowing from the heater core 142 is cooled and flows through pipelines into the sixth interface pipe F of the seven-way valve 21, and then flows back through the valve core to the second interface pipe B of the seven-way valve 21.

[0108] It should be noted that in this mode, the water heater 141 is not activated and does not heat the coolant in the circuit.

[0109] In this way, by connecting the motor circuit, battery circuit, and heating circuit, the coolant can circulate in the motor circuit, battery circuit, and heating circuit, thereby using the waste heat of the motor to heat the battery first and then the passenger compartment, achieving the purpose of recovering the heat of the motor and heating the passenger compartment and the battery together.

[0110] In some embodiments, the control commands include a second passenger compartment heating command. The second passenger compartment heating command is also a type of passenger compartment heating command. Specifically, the second passenger compartment heating command is used to instruct the use of the motor's heat to heat the passenger compartment and then the battery, when both the motor and battery have excess heat and the battery also require heat.

[0111] The controller is used to start the heater core 141, the first water pump 23a, the second water pump 23b and the third water pump 23c when it receives a passenger compartment heating request, the battery temperature does not exceed the fourth preset temperature, the motor temperature does not exceed the fifth preset temperature and the passenger compartment heating priority conditions are met, and sends a third passenger compartment heating command to the seven-way valve 21.

[0112] The seven-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the third crew cabin heating command, connecting the seventh interface pipe G and the third interface pipe C, connecting the sixth pipe port F and the fifth pipe port E, and connecting the fourth interface pipe D and the second interface pipe B, so that the input port of the heating circuit 14 is connected to the second output port of the motor circuit 15, the output port of the heating circuit 14 is connected to the input port of the battery circuit 13, and the output port of the battery circuit 13 is connected to the input port of the motor circuit 14, forming a third crew cabin heating circuit corresponding to the third crew cabin heating mode.

[0113] The passenger compartment heating priority condition involved in the embodiments of this application can be a condition for determining whether to prioritize heating the passenger compartment. Optionally, the passenger compartment heating priority condition can be that the battery requires less heat than the passenger compartment requires heat.

[0114] In one embodiment of this application, after receiving a passenger compartment heating request, the controller 11 determines whether the motor temperature exceeds a first preset temperature, whether the battery temperature is lower than a fourth preset temperature, and whether the battery heating priority condition is met. When the passenger compartment requires heating, the motor temperature exceeds the first preset temperature, the battery is at a low temperature, and the passenger compartment heating priority condition is met, the controller 11 generates and sends a third passenger compartment heating command to the seven-way valve 21, and activates the heater core 141, the first water pump 23a, the second water pump 23b, and the third water pump 23c.

[0115] After receiving the second crew cabin heating command sent by the controller 11, the seven-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the seventh interface pipe G is connected to the third interface pipe C, the sixth interface pipe F and the fifth interface pipe E are connected, and the fourth interface pipe D and the second interface pipe B are connected, so that the input port of the heating circuit 14 is connected to the second output port of the motor circuit 15, the output port of the heating circuit 14 is connected to the input port of the battery circuit 13, and the output port of the battery circuit 13 is connected to the input port of the motor circuit 14, forming a third crew cabin heating circuit corresponding to the third crew cabin heating mode.

[0116] In the heating circuit of the third crew compartment, the coolant flowing from the second port pipe B of the seven-way valve 21 is pressurized by the first water pump 23a and flows to the motor 151. Since the temperature of the coolant flowing through the motor 151 is lower than the motor temperature, the coolant flowing through the motor 151 heats up, while the motor cools down. The heated coolant flows through the second pipeline to the third port pipe C of the seven-way valve 21, and the coolant flowing into the third port pipe C flows through the valve core to the seventh port pipe G.

[0117] The coolant flowing from the seventh interface pipe G is pressurized by the third water pump 23c and flows to the instantaneous water heater 141. The coolant then flows through the instantaneous water heater 141 into the heater core 142, where it generates hot air, which is then delivered into the passenger compartment through air ducts. The coolant flowing from the heater core 142 is cooled and flows through pipelines into the six-port pipe F of the seven-way valve 21, and then through the valve core into the five-port pipe E of the seven-way valve 21.

[0118] The coolant flowing from the fifth port pipe E is pressurized by the second water pump 23b and flows to the first port H of the heat exchanger 132, and then flows to the battery 131 from the second port I of the heat exchanger 132. Since the coolant temperature is higher than the battery temperature, the coolant heats the battery, and the coolant cools down. The cooled coolant flows through a pipeline to the four-way port D of the seven-way valve 21, and then flows back to the second port pipe B through the valve core.

[0119] In this way, by connecting the motor circuit, battery circuit, and heating circuit, the coolant can circulate in the motor circuit, battery circuit, and heating circuit, thereby using the waste heat of the motor to heat the passenger compartment first, and then heat the battery compartment, achieving the purpose of recovering the heat of the motor and heating both the passenger compartment and the battery.

[0120] In some embodiments, the control commands include a fourth passenger compartment heating command. The fourth passenger compartment heating command is also a type of passenger compartment heating command. Specifically, the fourth passenger compartment heating command instructs the use of motor heat to heat the passenger compartment first, when the motor has excess heat and the battery temperature is suitable.

[0121] The controller 11 is used to activate the heater core 142, the first water pump 23a, and the third water pump 23c when it receives a crew cabin heating request and the motor temperature exceeds the first preset temperature, and to send a fourth crew cabin heating command to the seven-way valve 21.

[0122] The seven-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the fourth crew cabin heating command, connect the seventh interface pipe F and the third interface pipe C, and connect the sixth interface pipe F and the second interface pipe B, so that the input port of the heating circuit 14 is connected to the second output port of the motor circuit 13, and the output port of the heating circuit is connected to the input port of the battery circuit 13, forming a fourth crew cabin heating circuit corresponding to the fourth crew cabin heating mode.

[0123] In one embodiment of this application, after receiving a passenger compartment heating request, the controller 11 determines whether the motor temperature exceeds a first preset temperature and whether the battery temperature is higher than a fourth preset temperature. If the passenger compartment requires heating, the motor temperature exceeds the first preset temperature, and the battery temperature is higher than the fourth preset temperature, the controller 11 generates and sends a fourth passenger compartment heating command to the seven-way valve 21, and activates the heater core 141, the first water pump 23a, and the third water pump 23c.

[0124] After receiving the second crew cabin heating command sent by the controller 11, the seven-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the seventh interface pipe F is connected to the third interface pipe C, and the sixth interface pipe F and the second interface pipe B are connected, so that the input port of the heating circuit 14 is connected to the second output port of the motor circuit 13, and the output port of the heating circuit is connected to the input port of the battery circuit 13, forming the fourth crew cabin heating circuit corresponding to the fourth crew cabin heating mode.

[0125] In the heating circuit of the fourth crew compartment, the coolant flowing from the second port pipe B of the seven-way valve 21 is pressurized by the first water pump 23a and flows to the motor 151. Since the temperature of the coolant flowing through the motor 151 is lower than the motor temperature, the coolant flowing through the motor 151 heats up, while the motor cools down. The heated coolant flows through the second pipeline to the third port pipe C of the seven-way valve 21, and the coolant flowing into the third port pipe C flows through the valve core to the seventh port pipe G.

[0126] The coolant flowing from the seventh interface pipe G is pressurized by the third water pump 23c and flows to the instantaneous water heater 141. The coolant then flows through the instantaneous water heater 141 into the heater core 142, where it generates hot air, which is then delivered into the passenger compartment through air ducts. The coolant flowing from the heater core 142 is cooled and flows through pipelines into the sixth interface pipe F of the seven-way valve 21, and then flows back through the valve core to the second interface pipe B of the seven-way valve 21.

[0127] In this way, by connecting the motor circuit and the heating circuit, the coolant can circulate in the motor circuit and the heating circuit, thereby using the waste heat of the motor to heat the passenger compartment, achieving the purpose of recovering the heat of the motor and heating the passenger compartment.

[0128] In some embodiments, the control commands include a fifth passenger compartment heating command. The fifth passenger compartment heating command is also a type of passenger compartment heating command. Specifically, the fifth passenger compartment heating command instructs the use of battery heat to heat the passenger compartment when there is excess battery heat and the motor temperature is suitable.

[0129] The controller is used to activate the heater core 142, the second water pump 23b and the third water pump 23c, and send a fifth crew cabin heating command to the seven-way valve when a crew cabin heating request is received and the battery temperature exceeds the third preset temperature.

[0130] The seven-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the fifth crew cabin heating command, connecting the fifth interface pipe E and the sixth interface pipe F, as well as connecting the seventh interface pipe G and the fourth interface pipe D, so that the input port of the battery circuit 13 is connected to the output port of the heating circuit 14, and the input port of the heating circuit 14 is connected to the output port of the battery circuit 13, forming a fifth crew cabin heating circuit corresponding to the fifth crew cabin heating mode.

[0131] In one embodiment of this application, after receiving a passenger compartment heating request, the controller 11 determines whether the motor temperature exceeds a first preset temperature and whether the battery temperature is higher than a third preset temperature. When the passenger compartment requires heating, the motor temperature is below the first preset temperature (i.e., the motor has no excess heat), and the battery temperature is above the third preset temperature (i.e., the battery has excess heat), the controller 11 generates and sends a fifth passenger compartment heating command to the seven-way valve 21, and activates the heater core 141, the second water pump 23b, and the third water pump 23c.

[0132] After receiving the fifth crew cabin heating command sent by the controller 11, the seven-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the fifth interface pipe E is connected to the sixth interface pipe F, and the seventh interface pipe G is connected to the fourth interface pipe D, so that the input port of the battery circuit 13 is connected to the output port of the heating circuit 14, and the input port of the heating circuit 14 is connected to the output port of the battery circuit 13, forming the fifth crew cabin heating circuit corresponding to the fifth crew cabin heating mode.

[0133] In the heating circuit of the fifth crew compartment, the coolant flowing from the fifth interface pipe E is pressurized by the second water pump 23b and flows to the first port H of the heat exchanger 132, and then flows to the battery 131 from the second port I of the heat exchanger 132. Since the coolant temperature is lower than the battery temperature, the coolant cools the battery and heats up. The heated coolant flows through the pipeline to the four-way port D of the seven-way valve 21, and then flows through the valve core to the seventh interface pipe G.

[0134] The coolant flowing from the seventh interface pipe G is pressurized by the third water pump 23c and flows to the instantaneous water heater 141. The coolant then flows through the instantaneous water heater 141 into the heater core 142, where it generates hot air, which is then delivered into the passenger compartment through air ducts. The coolant flowing from the heater core 142 is cooled and flows through pipelines into the six-port pipe F of the seven-way valve 21, and then flows back through the valve core to the five-port pipe E of the seven-way valve 21.

[0135] In this way, by connecting the battery circuit and the heating circuit, the coolant can circulate in the battery circuit and the heating circuit, thereby using the waste heat of the battery to heat the passenger compartment, achieving the purpose of recovering battery heat and heating both the passenger compartment and the battery.

[0136] like Figure 4 The air conditioning circuit 16 has its input port connected to the third port J of the heat exchanger 132, and its output port connected to the fourth port K of the heat exchanger 132.

[0137] In some embodiments, the air conditioning circuit 16 includes a first expansion valve 161, a second expansion valve 162, an evaporator 163, a condenser 164, a compressor 165, and a gas-liquid separator 166.

[0138] The first expansion valve 161 and the second expansion valve 162 are used to control the flow and pressure of the refrigerant. The evaporator 163 evaporates the liquid refrigerant to form refrigerant vapor, thereby absorbing heat from the surrounding air and lowering the air temperature. The compressor 165 compresses the refrigerant vapor, increasing its pressure and temperature, and providing the cycle power for the refrigeration system. The condenser 164 converts the high-temperature, high-pressure refrigerant vapor into low-temperature, high-pressure liquid refrigerant. The gas-liquid separator 166 stores the refrigerant and replenishes it to the circuit. The gas-liquid separator 166 also separates the refrigerant vapor, delivering it to the compressor 165 to ensure stable circuit operation.

[0139] like Figure 4 As shown, the inlet of the gas-liquid separator 166 is connected to the third port J of the heat exchanger 132 and the outlet of the evaporator 163, respectively. The outlet of the gas-liquid separator 166 is connected to the inlet of the compressor 165. The outlet of the compressor 165 is connected to the inlet of the condenser 164. The outlet of the condenser 164 is connected to the inlet of the first expansion valve 161 and the inlet of the second expansion valve 162, respectively. The outlet of the first expansion valve 161 is connected to the inlet of the evaporator 163, and the outlet of the second expansion valve 162 is connected to the fourth port K of the heat exchanger 132.

[0140] In some embodiments, the battery temperature is high, and natural heat dissipation cannot meet the battery's heat dissipation needs, thus requiring the cooling function of the air conditioning circuit to reduce the battery temperature.

[0141] Control commands may include battery cooling commands. Battery cooling commands are commands that reduce battery temperature, specifically commands that control the integrated thermal management system to implement battery cooling mode within the thermal management mode.

[0142] The controller 11 is used to start the compressor 165, condenser 164 and second water pump 23b when the battery temperature exceeds the second preset temperature, open the second expansion valve 162 to put the air conditioning circuit 16 into a cooling state, and send a battery cooling command to the seven-way valve 21.

[0143] The seven-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the battery cooling command, and connect the fourth interface pipe D and the fifth interface pipe E so that the battery circuit 13 is connected, and the battery circuit 13 exchanges heat with the air conditioning circuit 16 to form a battery cooling circuit corresponding to the battery cooling mode.

[0144] It should be noted that, under normal circumstances, if the motor temperature is at a suitable operating temperature but the battery temperature exceeds the suitable operating temperature, the radiator 152 should be used to dissipate heat from the battery.

[0145] Specifically, when the controller 11 determines that the battery temperature is higher than the second preset temperature, the controller 11 will start the compressor 165 and the condenser 164, open the second expansion valve 162 to put the air conditioning circuit 16 into a cooling state, and send a battery cooling command to the seven-way valve 21.

[0146] In addition, the controller 11 will also start the second water pump 23b. After receiving the battery cooling command sent by the controller 11, the seven-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the fourth interface pipe D and the fifth interface pipe E are connected, so that the output port of the battery circuit 13 is connected to the input port of the battery circuit 13, and the battery circuit 13 is connected to the air conditioning circuit 16 through the heat exchanger 132, and the two exchange heat to form a battery cooling circuit corresponding to the battery cooling mode.

[0147] In the battery cooling circuit, the gas-liquid separator 166 starts, supplying refrigerant vapor to the compressor 165. The compressor 165 and condenser 164 start, converting the refrigerant vapor into low-temperature liquid refrigerant. The second expansion valve 162 opens, thus putting the entire air conditioning circuit 16 into a cooling state. The low-temperature liquid refrigerant in the air conditioning circuit 16 flows through the second expansion valve 162 into the fourth port K of the heat exchanger 132. Meanwhile, the coolant flowing from the five-port pipe E of the seven-way valve 21 is pressurized by the second water pump 23b and flows to the first port H of the heat exchanger. In the heat exchanger 132, the low-temperature refrigerant exchanges heat with the coolant, causing the coolant temperature to decrease and the refrigerant temperature to increase. The cooled coolant flows from the second port I of the heat exchanger to the battery 131, carrying away heat from the battery 131, and then flows through a pipeline to the fourth port D of the seven-way valve 21. Meanwhile, the heated refrigerant flows back to the gas-liquid separator 166 from the third port J of the heat exchanger 132. In this way, the heat generated by the battery is transferred to the refrigerant in the air conditioning circuit 16 through the heat exchanger 132, and is carried away by the refrigerant and discharged into the external environment, thereby cooling the battery.

[0148] In some embodiments, the motor temperature is high, and natural heat dissipation cannot meet the motor's heat dissipation needs, thus requiring the cooling function of the air conditioning circuit to reduce the motor temperature.

[0149] The controller 11 is used to start the compressor 165, condenser 164, first water pump 23a and second water pump 23b, open the second expansion valve 162, so that the air conditioning circuit is in a cooling state when the motor temperature is higher than the first preset temperature and the battery temperature exceeds the third preset temperature, and to send a motor cooling command to the seven-way valve 21.

[0150] The seven-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the battery cooling command, connect the fourth interface pipe D and the second interface pipe B, and connect the third interface pipe C and the fifth interface pipe F, so that the output port of the battery circuit 13 is connected to the input port of the motor circuit 15, the second output port of the motor circuit 15 is connected to the input port of the battery circuit 13, and the battery circuit 13 exchanges heat with the air conditioning circuit 16 to form a motor cooling circuit corresponding to the motor cooling mode.

[0151] It should be noted that when using the air conditioning circuit 16 to cool the motor 151, the battery needs to be above the third preset temperature, that is, the battery is not in a low temperature state, in order to prevent the condensate flowing out of the heat exchanger 132 after cooling from lowering the battery temperature to a low temperature state.

[0152] Specifically, when the controller 11 determines that the motor temperature is higher than the first preset temperature and the battery temperature exceeds the third preset temperature, the controller 11 will start the compressor 165 and the condenser 164, open the second expansion valve 162 to put the air conditioning circuit 16 into a cooling state, and send a motor cooling command to the seven-way valve 21.

[0153] In addition, the controller 11 will also start the first water pump 23a and the second water pump 23b. After receiving the motor cooling command sent by the controller 11, the seven-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the fourth interface pipe D is connected to the second interface pipe B, and the third interface pipe C and the fifth interface pipe F are connected, so that the output port of the battery circuit 13 is connected to the input port of the battery circuit 13, the output port of the battery circuit 13 is connected to the input port of the motor circuit 15, the second output port of the motor circuit 15 is connected to the input port of the battery circuit 13, and the battery circuit 13 is connected to the air conditioning circuit 16 through the heat exchanger 132, and the two exchange heat to form a motor cooling circuit corresponding to the motor cooling mode.

[0154] In the motor cooling circuit, the gas-liquid separator 166 starts, supplying refrigerant vapor to the compressor 165. The compressor 165 and condenser 164 start, converting the refrigerant vapor into low-temperature liquid refrigerant, and the second expansion valve 162 opens, thereby putting the entire air conditioning circuit 16 into a cooling state. The low-temperature liquid refrigerant in the air conditioning circuit 16 flows into the fourth port K of the heat exchanger 132 through the second expansion valve 162.

[0155] Furthermore, the coolant flowing from the second port pipe B of the seven-way valve 21 is pressurized by the first water pump 23a and flows to the motor 151. Since the temperature of the coolant flowing through the motor 151 is lower than the motor temperature, the coolant flowing through the motor 151 heats up, while the motor cools down. The heated coolant flows through the second pipeline to the third port pipe C of the seven-way valve 21, and the coolant flowing into the third port pipe C flows through the valve core to the fifth port pipe E.

[0156] Coolant flowing into the seven-way valve 21 from its five-port pipe E is pressurized by the second water pump 23b and flows to the first port H of the heat exchanger. In the heat exchanger 132, the low-temperature refrigerant exchanges heat with the coolant, causing the coolant temperature to decrease and the refrigerant temperature to increase. The cooled coolant flows from the second port I of the heat exchanger to the battery 131, carrying away heat from the battery. It then flows through a pipeline to the four-port D of the seven-way valve 21 and returns to the second-port pipe B through the valve core. Simultaneously, the heated refrigerant flows back to the gas-liquid separator 166 from the third port J of the heat exchanger 132.

[0157] In this way, the heat generated by the motor is transferred to the refrigerant in the air conditioning circuit 16 through the heat exchanger 132, and is carried away by the refrigerant and discharged into the external environment, thereby cooling the motor.

[0158] In some embodiments, the integrated thermal management system may further include multiple sensors. These multiple sensors include a first temperature sensor T1, a second temperature sensor T2, and a third temperature sensor T3. Figure 4 As shown, the first temperature sensor T1 and the second temperature sensor T2 are installed in the motor circuit 17, and the third temperature sensor T3 is installed in the battery circuit 13.

[0159] In one embodiment of this application, a first temperature sensor T1 and a second temperature sensor T2 measure the temperature at the motor inlet and outlet, respectively. A third temperature sensor T3 measures the temperature at the battery 131 inlet.

[0160] Multiple sensors may also include a pressure sensor P and a pressure-temperature sensor PT. For example... Figure 4 As shown, pressure sensor P and pressure-temperature sensor PT can be installed in air conditioning circuit 16. Pressure sensor P is used to measure the pressure of the refrigerant at the compressor outlet, and pressure-temperature sensor PT is used to measure the pressure of the refrigerant at the compressor inlet, and also to measure the temperature of the refrigerant at the compressor inlet.

[0161] In some embodiments, the thermal management mode is determined by an integrated thermal management system based on whether there is a crew cabin heating request, motor temperature, and battery temperature.

[0162] like Figure 4 As shown, the integrated thermal management system also includes a fan and a blower. Specifically, the radiator 152, condenser 164, and fan are integrated together. The heater core 142, evaporator 163, and blower are also integrated together. This allows for a reduction in system size.

[0163] In one embodiment of this application, the fan (FAN) is used for the exchange of air between the radiator and condenser and the outside air. The blower (BLOW) is used to blow the cold air generated by the evaporator into the passenger compartment, and can also be used to blow the hot air generated by the heater core 142 into the passenger compartment.

[0164] Upon receiving a cooling request for the passenger compartment, the integrated thermal management system cools the passenger compartment via the air conditioning circuit 16. In some embodiments, the controller 11 is configured to, upon receiving a cooling request for the passenger compartment, start the compressor 165, condenser 164, and evaporator 163, and open the first expansion valve 161 to put the air conditioning circuit 16 into a cooling state. Furthermore, the controller 11 is also configured to start the blower.

[0165] Specifically, when the controller 11 receives a request to cool the passenger compartment, it controls the refrigerant to pass through the gas-liquid separator 166, compressor 165, condenser 164, first expansion valve 161 and evaporator 163 in sequence, so that the air conditioning circuit 16 is in a cooling state, and the cold air generated by the air conditioning circuit 16 is transferred to the passenger compartment by the blower, forming a passenger compartment cooling circuit corresponding to the passenger compartment cooling mode.

[0166] In the crew compartment cooling circuit, the gas-liquid separator 166 is activated, supplying refrigerant vapor to the compressor 165. The compressor 165 and condenser 164 are activated, converting the refrigerant vapor into low-temperature liquid refrigerant. The first expansion valve 161 is opened, and the liquid refrigerant flows into the evaporator 163. The evaporator 163 absorbs heat from the air and converts the liquid refrigerant into refrigerant vapor. The refrigerant vapor flows back to the gas-liquid separator 166, and the cold air generated by the evaporator 163 is delivered to the crew compartment by the blower BLOW.

[0167] In some embodiments, the control commands include passenger compartment and battery cooling commands. Passenger compartment and battery cooling commands can simultaneously achieve passenger compartment cooling and battery cooling functions, i.e., commands that control the integrated thermal management system to implement passenger compartment and battery cooling modes in thermal management mode.

[0168] The controller 11 is used to start the gas-liquid separator 166, compressor 165 and condenser 164, open the first expansion valve 161 and the second expansion valve 162 when it receives a request to cool the occupant compartment and the battery temperature exceeds the second preset temperature, so as to put the air conditioning circuit into a cooling state, and send a occupant compartment and battery cooling command to the seven-way valve 21.

[0169] The six-way valve 21 is used to control the drive mechanism to rotate the valve core according to the battery cooling command, so that the fifth interface pipe E is connected to the sixth interface pipe F, and the seventh interface pipe G is connected to the fourth interface pipe D, so that the input port of the battery circuit 13 is connected to the output port of the heating circuit 14, and the input port of the heating circuit 14 is connected to the output port of the battery circuit 13, and the battery circuit 15 exchanges heat with the air conditioning circuit 16 to form a passenger compartment and battery cooling circuit corresponding to the passenger compartment and battery cooling mode.

[0170] It should be noted that the cooling principle of the passenger compartment in the passenger compartment and battery cooling circuit is the same as that of the passenger compartment cooling circuit in the previous embodiment. The cooling principle of the battery in the passenger compartment and battery cooling circuit is the same as that of the aforementioned passenger compartment cooling and battery cooling circuits. For the sake of brevity, it will not be repeated here.

[0171] In another aspect, this application provides a control method for an integrated thermal management system, applicable to any of the integrated thermal management systems described above.

[0172] In another aspect, this application provides a vehicle, Figure 5 This application provides a schematic diagram of the structure of a vehicle according to an embodiment of the present application. Figure 5 As shown, vehicle 50 includes any of the above-described integrated thermal management systems 51.

[0173] It should be understood that the specific features, operations, and details described herein with respect to the system of this application can also be similarly applied to the methods and vehicles of this application, or vice versa. Furthermore, each step of the method of this application can be performed by a corresponding component or unit of the apparatus or system of this application.

[0174] It should be understood that the various modules / units of the device of this application can be implemented wholly or partially through software, hardware, firmware, or a combination thereof. Each module / unit can be embedded in the processor of the electronic device in hardware or firmware form or independent of the processor, or it can be stored in the memory of the electronic device in software form for the processor to call to execute the operation of each module / unit. Each module / unit can be implemented as an independent component or module, or two or more modules / units can be implemented as a single component or module.

[0175] Those skilled in the art will understand that the method steps of this application can be performed by a computer program instructing related hardware, such as electronic devices or processors. The computer program can be stored in a non-transitory computer-readable storage medium, and its execution causes the steps of this application to be performed. Depending on the context, any reference herein to memory, storage, or other media may include non-volatile or volatile memory. Examples of non-volatile memory include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, magnetic tape, floppy disk, magneto-optical data storage device, optical data storage device, hard disk, solid-state drive, etc. Examples of volatile memory include random access memory (RAM), external cache memory, etc.

[0176] The technical features described above can be combined arbitrarily. Although not all possible combinations of these technical features are described, any combination of these technical features should be considered to be covered by this specification, provided that such combination does not contain contradictions.

[0177] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An integrated thermal management system, characterized in that, include: The system includes a controller, a seven-way valve integrated module, a battery circuit, a heating circuit, a motor circuit, and an air conditioning circuit. The seven-way valve integrated module integrates a seven-way valve, a water tank, and three water pumps. The controller is used to generate control commands according to the thermal management mode. The control commands are used to control the connection status between the seven-way valve integrated module and the heating circuit, the battery circuit and the motor circuit. The three water pumps include a first water pump, a second water pump, and a third water pump. The first water pump is connected in series in the motor circuit, the second water pump is connected in series in the battery circuit, and the third water pump is connected in series in the heating circuit. At least one end of the water tank is connected to the motor circuit. The seven-way valve includes: seven interface pipes, a valve core, and a drive mechanism; the seven interface pipes are respectively connected to the battery circuit, the heating circuit, and the motor circuit; wherein, the seven interface pipes are respectively a first interface pipe, a second interface pipe, a third interface pipe, a fourth interface pipe, a fifth interface pipe, a sixth interface pipe, and a seventh interface pipe; the seven interface pipes are respectively connected to the battery circuit, the heating circuit, and the motor circuit, including: The first interface tube is connected to the first output port of the motor circuit; The second interface tube is connected to the input port of the motor circuit; The third interface tube is connected to the second output port of the motor circuit; The fourth interface tube is connected to the output port of the battery circuit. The fifth interface tube is connected to the input port of the battery circuit; The sixth interface pipe is connected to the output port of the heating circuit; The seventh interface pipe is connected to the input port of the heating circuit; The battery circuit includes a battery and a heat exchanger, and the second water pump is connected in series in the battery circuit, including: The fifth interface pipe is connected to the input port of the second water pump, the output port of the second water pump is connected to the first port of the heat exchanger, the second port of the heat exchanger is connected to the input port of the battery, and the output port of the battery is connected to the fourth interface pipe. The input port of the air conditioning circuit is connected to the third port of the heat exchanger, and the output port of the air conditioning circuit is connected to the fourth port of the heat exchanger. The air conditioning circuit includes a first expansion valve, a second expansion valve, an evaporator, a condenser, a compressor, and a gas-liquid separator; The output port of the second expansion valve is connected to the third port of the heat exchanger. The input port of the second expansion valve is connected to the input port of the first expansion valve and the output port of the condenser. The output port of the condenser is connected to the output port of the compressor. The input port of the compressor is connected to the output port of the gas-liquid separator. The input port of the gas-liquid separator is connected to the output port of the evaporator and the fourth port of the heat exchanger. The input port of the evaporator is connected to the output port of the first expansion valve. The seven-way valve is used to control the drive mechanism to drive the valve core to rotate according to the control command, so as to connect at least two target interface pipes among the seven interface pipes, so as to connect the pipe ports of the target circuits connected to the at least two target interface pipes, forming a thermal management circuit corresponding to the thermal management mode.

2. The system according to claim 1, characterized in that, The motor circuit includes a motor and a radiator, and the first water pump is connected in series in the motor circuit, including: The inlet of the first water pump is connected to the second interface pipe, the outlet of the first water pump is connected to the inlet of the motor, the outlet of the motor and the third interface pipe are connected to the first outlet of the radiator, and the second outlet of the radiator is connected to the first interface pipe.

3. The system according to claim 1, characterized in that, The heating circuit includes a water heater and a warm air core, and the third water pump is connected in series in the heating circuit, including: The inlet of the third water pump is connected to the seventh interface pipe, the outlet of the third water pump is connected to the inlet of the instant water heater, the outlet of the instant water heater is connected to the inlet of the warm air core, and the outlet of the warm air core is connected to the sixth interface pipe.

4. The system according to claim 2, characterized in that, The control commands include motor cooling commands. The controller is used to start the radiator and the first water pump when the motor temperature exceeds the first preset temperature, and to send a motor cooling command to the seven-way valve. The seven-way valve is used to control the drive mechanism to rotate the valve core according to the motor cooling command, and connect the first interface pipe and the second interface pipe so that the input port of the motor circuit is connected to the first output port, forming a motor cooling circuit corresponding to the motor cooling mode.

5. The system according to claim 2, characterized in that, The control commands include a command to prevent motor cooling. The controller is used to start the first water pump and send a motor cooling command to the seven-way valve when the motor temperature does not exceed the first preset temperature. The seven-way valve is used to control the drive mechanism to rotate the valve core according to the motor no-heating command, and connect the second interface pipe and the third interface pipe so that the input port of the motor circuit is connected to the second output port, forming a motor no-heating circuit corresponding to the motor no-heating mode.

6. The system according to claim 2, characterized in that, The control commands include: battery heat dissipation commands. The controller is used to activate the radiator and the second water pump when the battery temperature does not exceed the second preset temperature but exceeds the third preset temperature, and to send a battery cooling command to the seven-way valve. The seven-way valve is used to control the drive mechanism to drive the valve core to rotate according to the battery heat dissipation command, connect the first interface pipe and the fourth interface pipe, and connect the third interface pipe and the fifth interface pipe, so that the input port of the battery circuit is connected to the second output port of the motor circuit, and the output port of the battery circuit is connected to the first output port of the motor circuit, forming a battery heat dissipation circuit corresponding to the battery heat dissipation mode.

7. The system according to claim 1, characterized in that, The control commands include a command to prevent battery overheating. The controller is used to start the second water pump and send a command to the seven-way valve that the battery has no heat dissipation when the battery temperature does not exceed the third preset temperature. The seven-way valve is used to control the drive mechanism to rotate the valve core according to the battery no-heating command, and connect the fourth interface pipe and the fifth interface pipe to connect the battery circuit and form a battery no-heating circuit corresponding to the battery no-heating mode.

8. The system according to claim 1, characterized in that, The control commands include a first battery heating command. The controller is used to start the first water pump and the second water pump and send the first battery heating command to the seven-way valve when the battery temperature does not exceed the fourth preset temperature and the motor temperature exceeds the first preset temperature. The seven-way valve is used to control the drive mechanism to drive the valve core to rotate according to the first battery heating command, connect the third interface pipe and the fifth interface pipe, and connect the second interface pipe and the fourth interface pipe, so that the second output port of the motor circuit is connected to the input port of the battery circuit, and the input port of the motor circuit is connected to the output port of the battery circuit, forming a first battery heating circuit corresponding to the first battery heating mode.

9. The system according to claim 3, characterized in that, The control commands include a second battery heating command. The controller is used to start the water heater, the second water pump and the third water pump when the battery temperature does not exceed the fourth preset temperature and the motor temperature does not exceed the first preset temperature, and to send the second battery heating command to the seven-way valve. The seven-way valve is used to control the drive mechanism to drive the valve core to rotate according to the second battery heating command, connecting the fourth interface pipe and the seventh interface pipe, and connecting the fifth interface pipe and the sixth interface pipe, so that the input port of the heating circuit is connected to the output port of the battery circuit, and the output port of the heating circuit is connected to the input port of the battery circuit, forming a second battery heating circuit corresponding to the second battery heating mode.

10. The system according to claim 3, characterized in that, The control commands include a first crew cabin heating command. The controller is used to activate the instant water heater, the warm air core, and the third water pump when a crew cabin heating request is received and the battery temperature does not exceed the third preset temperature and the motor temperature does not exceed the first preset temperature. The seven-way valve is used to control the drive mechanism to rotate the valve core according to the first crew cabin heating command, and connect the sixth interface pipe and the seventh interface pipe so that the heating circuit is connected to form a first crew cabin heating circuit corresponding to the first crew cabin heating mode.

11. The system according to claim 3, characterized in that, The control commands include heating commands for the second and third crew cabins. The controller is used to start the heater core, the first water pump, the second water pump and the third water pump when it receives a passenger cabin heating request, the motor temperature does not exceed the fifth preset temperature and the battery heating priority condition is met, and to send the second passenger cabin heating command to the seven-way valve. The seven-way valve is used to control the drive mechanism to rotate the valve core according to the second crew cabin heating command, connecting the fifth interface pipe with the third interface pipe, connecting the fourth interface pipe with the seventh interface pipe, and connecting the sixth interface pipe with the second interface pipe, so that the input port of the battery circuit is connected to the second output port of the motor circuit, the output port of the battery circuit is connected to the input port of the heating circuit, and the output port of the heating circuit is connected to the input port of the motor circuit, forming a second crew cabin heating circuit corresponding to the second crew cabin heating mode; or... The controller is used to start the heater core, the first water pump, the second water pump and the third water pump when it receives a passenger compartment heating request, the battery temperature does not exceed the fourth preset temperature, the motor temperature exceeds the first preset temperature and the passenger compartment heating priority condition is met, and sends the third passenger compartment heating command to the seven-way valve. The seven-way valve is used to control the drive mechanism to rotate the valve core according to the third crew cabin heating command, connecting the seventh interface pipe with the third interface pipe, connecting the sixth interface pipe with the fifth interface pipe, and connecting the fourth interface pipe with the second interface pipe, so that the input port of the heating circuit is connected to the second output port of the motor circuit, the output port of the heating circuit is connected to the input port of the battery circuit, and the output port of the battery circuit is connected to the input port of the motor circuit, forming a third crew cabin heating circuit corresponding to the third crew cabin heating mode.

12. The system according to claim 3, characterized in that, The control commands include heating commands for the fourth and fifth crew cabins. The controller is used to activate the heater core, the first water pump, and the third water pump when it receives a crew cabin heating request and the motor temperature exceeds a first preset temperature, and to send the fourth crew cabin heating command to the seven-way valve. The seven-way valve is used to control the drive mechanism to rotate the valve core according to the fourth crew cabin heating command, connecting the seventh interface pipe and the third interface pipe, and connecting the sixth interface pipe and the second interface pipe, so that the input port of the heating circuit is connected to the second output port of the motor circuit, and the output port of the heating circuit is connected to the input port of the battery circuit, forming a fourth crew cabin heating circuit corresponding to the fourth crew cabin heating mode; or, The controller is used to activate the heater core, the second water pump and the third water pump when it receives a crew cabin heating request and the battery temperature exceeds a third preset temperature, and to send the fifth crew cabin heating command to the seven-way valve. The seven-way valve is used to control the drive mechanism to rotate the valve core according to the fifth crew cabin heating command, connecting the fifth interface pipe and the sixth interface pipe, as well as connecting the seventh interface pipe and the fourth interface pipe, so that the input port of the battery circuit is connected to the output port of the heating circuit, and the input port of the heating circuit is connected to the output port of the battery circuit, forming a fifth crew cabin heating circuit corresponding to the fifth crew cabin heating mode.

13. The system according to claim 1, characterized in that, The control commands include battery cooling commands and motor cooling commands; The controller is used to start the compressor, the condenser and the second water pump, open the second expansion valve and put the air conditioning circuit into a cooling state when the battery temperature exceeds the second preset temperature, and send a battery cooling command to the seven-way valve. The seven-way valve is used to control the drive mechanism to rotate the valve core according to the battery cooling command, connecting the fourth interface pipe and the fifth interface pipe to connect the battery circuit, and the battery circuit exchanges heat with the air conditioning circuit to form a battery cooling circuit corresponding to the battery cooling mode; or... The controller is used to start the compressor, the condenser, the first water pump and the second water pump, open the second expansion valve, so that the air conditioning circuit is in a cooling state when the motor temperature is higher than the first preset temperature and the battery temperature exceeds the third preset temperature, and send a motor cooling command to the seven-way valve. The seven-way valve is used to control the drive mechanism to rotate the valve core according to the battery cooling command, connect the fourth interface pipe and the second interface pipe, and connect the fifth interface pipe and the third interface pipe, so that the output port of the battery circuit is connected to the input port of the motor circuit, the input port of the battery circuit is connected to the second output port of the motor circuit, and the battery circuit exchanges heat with the air conditioning circuit to form a motor cooling circuit corresponding to the motor cooling mode.

14. A control method for an integrated thermal management system, characterized in that, Applied to the integrated thermal management system as described in any one of claims 1 to 13.

15. A vehicle, characterized in that, Including the integrated thermal management system as described in any one of claims 1 to 13.

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