Integrated thermal management system, control method and vehicle

Abstract

The invention provides an integrated thermal management system, a control method and a vehicle. The system comprises a controller, a seven-way valve integrated module, a battery loop, a heating loop and a motor loop. Wherein the seven-way valve integration 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 the heat management mode, and the control instruction is used for controlling the communication state of the seven-way valve integration module with the heating loop, the battery loop and the motor loop; the three water pumps are respectively connected in series with the battery loop, the heating loop and the motor loop; and the seven-way valve is used for controlling the driving mechanism to drive the valve element to rotate according to a control instruction and communicating at least two target interface pipes in the seven interface pipes, so that pipe orifices of target loops connected with the at least two target interface pipes are communicated, and a heat management loop corresponding to a heat management mode is formed. The integration of parts is improved, and the number of connecting pipelines and the number of control motors are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of thermal management systems, and in particular to an integrated thermal management system, a control method and a vehicle. Background Art

[0002] The current thermal management system is showing a trend of becoming more complex. Although it aims to achieve more sophisticated and comprehensive thermal control functions, this process is also accompanied by a significant increase in the number of components and an expansion of the system volume. In particular, the widespread use of key components such as three-way valves, four-way valves and water pumps directly leads to the complexity of the internal connection pipes of the system, which not only increases the complexity of control signals and the increase in demand, but also inevitably increases the loss of energy during transmission, and poses a greater challenge to the already limited space resources inside the vehicle. Summary of the invention

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

[0004] In a first aspect, an embodiment of the present application provides an integrated thermal management system, comprising: 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 integrates: a seven-way valve, a water tank and three water pumps; a controller, used to generate control instructions according to a thermal management mode, the control instructions are used to control the connectivity 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, and at least one end of the water tank is connected to the motor circuit; the seven-way valve comprises: seven interface pipes, a valve core and a driving mechanism; the seven interface pipes are respectively connected to the battery circuit, the heating circuit and the motor circuit; the seven-way valve is used to control the driving mechanism to drive the valve core to rotate according to the control instructions, to connect at least two target interface pipes among the seven interface pipes, so that the pipe mouths 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] In a second aspect, a control method of an integrated thermal management system is applied to any integrated thermal management system described in any of the embodiments of the present application.

[0006] In a third aspect, an embodiment of the present application provides a vehicle, comprising any integrated thermal management system described in the embodiments of the present application.

[0007] In summary, the integrated thermal management system, control method and vehicle provided by the present application have at least the following beneficial effects: by connecting each circuit with a highly integrated seven-way valve integrated module, precise control of the connectivity status of each circuit is achieved, and different thermal management circuits are constructed to meet different thermal management needs, and the system structure is simplified, the number of connecting pipes in the system is reduced, the overall system area is reduced, the energy-to-energy conversion ratio is improved, energy loss is reduced, and the number of valve controls is reduced so that the demand for control signals is reduced, thereby not only improving the efficiency and reliability of the thermal management system, but also reducing the complexity and cost of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0009] Figure 1 A schematic diagram of the structure of an integrated thermal management system provided by an embodiment of the present application is shown;

[0010] Figure 2 A schematic diagram showing the structure of another integrated thermal management system provided in an embodiment of the present application is shown;

[0011] Figure 3 A schematic structural diagram of a seven-way valve integrated module provided in an embodiment of the present application is shown;

[0012] Figure 4 A schematic diagram showing the structure of another integrated thermal management system provided by an embodiment of the present application is shown;

[0013] Figure 5 A schematic structural diagram of a vehicle provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0014] In order to make the above and other features and advantages of the present application more clear, the present application is further described below in conjunction with the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explaining to those skilled in the art and are only exemplary and not restrictive.

[0015] In the following description, many specific details are set forth to provide a thorough understanding of the present application. However, it is apparent to those skilled in the art that specific details need not be adopted to practice the present application. In other cases, well-known steps or operations are not described in detail to avoid blurring the present application.

[0016] Another aspect of the present application provides an integrated thermal management system. Figure 1 A schematic diagram of the structure of an integrated thermal management system provided by an embodiment of the present application is shown. 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 connection 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 with the battery circuit 13, the heating circuit 14 and the motor circuit 15.

[0018] The controller 11 may be a vehicle controller, which may be used to generate control instructions according to the thermal management mode, and may also be used to send control instructions to the circuits related to the thermal management mode and the seven-way valve integrated module 12. The control instructions are used to control the connectivity 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, the control instructions can also be used to indicate the working status of each circuit. Among them, the working status of the heating circuit 14 can include but is not limited to the heating state, the warm air state, and the heating warm air state. The working state of the battery circuit 13 can include the battery heat dissipation state, the battery non-heat dissipation state and multiple battery heating states. The working state of the motor circuit 15 includes but is not limited to the motor heat dissipation state and the motor non-heat dissipation state.

[0020] Figure 2 A schematic diagram of the structure of another integrated thermal management system provided in an embodiment of the present application is shown. 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 a control instruction to the air conditioning loop 16. The control instruction is also used to indicate the working state of the air conditioning loop 16. The working state of the air conditioning loop 16 may include a cooling state.

[0022] Figure 3 A schematic diagram of the structure of a seven-way valve integrated module provided in an embodiment of the present application is shown. 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 a first water pump 23a, a second water pump 23b and a third water pump 23c.

[0023] The water tank 22 may be an expansion water tank, at least one end of which is connected to the motor circuit 15 , that is, the water tank 22 may be connected to the motor circuit 15 at one end or at both ends.

[0024] The water tank 22 can be used to add 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 23 a is connected in series in the motor circuit 15 , the second water pump 23 b is connected in series in the battery circuit 13 , and the third water pump 23 c is connected in series in the heating circuit 14 .

[0026] The seven-way valve 21 includes a housing, a driving mechanism, a valve core and seven interface pipes. Specifically, the seven interface pipes are arranged on the housing. The valve core is arranged in the housing to divide the housing cavity into a plurality of small cavities, each of which is connected to two interface pipes. The driving mechanism is used to drive the valve core to rotate so that each second cavity is connected to the interface pipe.

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

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

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

[0030] The thermal management mode may include, but is not limited to, a motor cooling mode, a motor non-cooling mode, a battery cooling mode, a battery non-cooling mode, a first battery heating mode, a second battery heating mode, a first passenger compartment heating mode, a second passenger compartment heating mode, a third passenger compartment heating mode, a fourth passenger compartment heating mode, a fifth passenger compartment heating mode, a battery cooling mode, and a motor cooling mode.

[0031] The thermal management circuit may include but is not limited to a motor cooling circuit, a motor non-cooling circuit, a battery cooling circuit, a battery non-cooling circuit, a first battery heating circuit, a second battery heating circuit, a first passenger compartment heating circuit, a second passenger compartment heating circuit, a third passenger compartment heating circuit, a fourth passenger compartment heating circuit, a fifth passenger compartment heating circuit, a battery cooling circuit, and a motor cooling circuit.

[0032] Figure 4 A schematic diagram of the structure of another integrated thermal management system provided in an embodiment of the present application is shown. Figure 4 The controller 11 is not identified.

[0033] like Figure 4 As shown, the motor circuit 15 includes a first output pipe port, a second output pipe port and an input pipe port. The seven interface pipes of the seven-way valve 21 are 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 interface pipes of the seven-way valve 21 are respectively connected to the battery circuit 13, the heating circuit 14 and the motor circuit 15 and may include: a first interface pipe A is connected to the first output pipe opening of the motor circuit 15. A second interface pipe B is connected to the input pipe opening of the motor circuit 15. A third interface pipe C is connected to the second output pipe opening of the motor circuit 15. A fourth interface pipe D is connected to the output pipe opening of the battery circuit 13. A fifth interface pipe E is connected to the input pipe opening of the battery circuit 13. A sixth interface pipe F is connected to the output pipe opening of the heating circuit 14. A seventh interface pipe G is connected to the input pipe opening of the 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 may achieve heat dissipation for the motor 151 through the heat sink 152.

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

[0037] The pipe port connected to the second interface pipe B serves as the input pipe port of the motor circuit 15. The pipe port connected to the first interface pipe A serves as the first output pipe port of the motor circuit. The pipe port connected to the third interface pipe C serves as the second output pipe 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, and the connection relationship is: the fifth interface pipe E is connected to the input pipe port of the second water pump 23b, the output pipe port of the second water pump 23b is connected to the first pipe port H of the heat exchanger 132, the second pipe port I of the heat exchanger 132 is connected to the input pipe port of the battery 131, and the output pipe port of the battery 131 is connected to the fourth interface pipe D.

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

[0041] The heating circuit 14 is used to heat the coolant in the circuit. 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 that can quickly heat liquid. The warm air core 142 is used to generate hot air based on the coolant in the circuit and guide it into the passenger compartment.

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

[0043] If the motor is at a temperature exceeding the normal operating temperature for a long time, it will affect the life of the motor. Therefore, the motor needs to be cooled.

[0044] In some embodiments, the control instruction includes: a motor heat dissipation instruction. The motor heat dissipation instruction may be an instruction for implementing a motor heat dissipation function, that is, an instruction for controlling the integrated thermal management system to implement a motor heat dissipation mode in a thermal management mode.

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

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

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

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

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

[0050] The controller 11 also sends a motor heat dissipation instruction to the seven-way valve 21. After receiving the motor heat dissipation instruction sent by the controller 11, the seven-way valve 21 controls the valve core position by rotating the driving mechanism, so that the first interface pipe A is connected with the second interface pipe B, so that the first output pipe port of the motor circuit 15 is connected with the input pipe port, that is, the radiator 132 is connected with the motor 151 through the first pipeline, forming a motor heat dissipation circuit corresponding to the motor heat dissipation mode.

[0051] In the motor heat dissipation circuit, the coolant flowing out of the radiator 152 flows to the first interface pipe A of the seven-way valve 21, and flows to the second interface pipe B through the valve core of the seven-way valve. The coolant flowing out of the second interface pipe B of the seven-way valve 21 flows to the input pipe port of the motor circuit 15, and is pressurized along the pipeline through the first water pump 22a to flow to the motor 151. Since the radiator 152 has a heat dissipation function, the temperature of the coolant flowing out of the radiator 152 is lower than the motor temperature. Therefore, the coolant flowing through the motor 151 can take away the heat of the motor 151, so that the motor 151 is cooled down. The coolant flowing out of the motor 151 heats up and flows back to the radiator 152 through the first pipeline for heat dissipation. In this way, the coolant circulates in the motor heat dissipation circuit, thereby using the coolant to take away the heat of the motor, and using the radiator 152 to cool the coolant, thereby achieving the purpose of motor heat dissipation.

[0052] In some embodiments, the control instruction may include a motor heat dissipation instruction. The motor heat dissipation-free instruction may be an instruction that the battery temperature is within a normal temperature range and no additional heat dissipation is required, that is, an instruction to control the integrated thermal management system to implement a motor heat dissipation-free mode in the thermal management mode.

[0053] The controller 11 is used to start the first water pump 23a and send a motor non-heat dissipation instruction 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 driving mechanism to drive the valve core to rotate according to the motor no heat dissipation instruction, connecting the second interface pipe B and the third interface pipe C, so that the input pipe port of the motor circuit 15 is connected with the second output pipe port, forming a motor no heat dissipation circuit corresponding to the motor no heat dissipation mode.

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

[0056] After the seven-way valve 21 receives the motor no heat dissipation instruction sent by the controller 11, it controls the valve core position by rotating the driving mechanism, so that the third interface pipe C is connected with the second interface pipe B, and the second output pipe port of the motor circuit 15 is connected with the input pipe port, that is, the first pipeline of the motor circuit 15 is connected with the motor, forming a motor no heat dissipation circuit corresponding to the motor no heat dissipation mode.

[0057] In the motor non-heat dissipation circuit, the coolant flows out from the second interface pipe 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 flows to the third interface pipe C of the seven-way valve 21 through the second pipeline, and flows back to the second interface pipe B through the valve core of the seven-way valve 21. In this way, the motor non-heat dissipation circuit allows the heat generated by the motor during operation to be dissipated to the environment through natural heat dissipation without the intervention of additional cooling devices.

[0058] If the battery is kept at a temperature exceeding the normal operating temperature for a long time, the battery life will be affected. Therefore, the battery needs to be cooled.

[0059] In some embodiments, the control instruction includes a battery heat dissipation cooling instruction. The battery heat dissipation cooling instruction may be an instruction that the battery temperature exceeds the normal operating temperature and the battery cooling requirement can be met by heat dissipation through the radiator 152, that is, an instruction to 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 start the radiator 152 and the second water pump 23 b and send a battery cooling instruction 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 driving mechanism to drive the valve core to rotate according to the battery heat dissipation instruction, 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 pipe port of the battery circuit 13 is connected with the second output pipe port of the motor circuit 15, and the output pipe port of the battery circuit 13 is connected with the first output pipe 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 the embodiment of the present application is lower than the second preset temperature. The battery temperature may be the current temperature of the battery. The second preset temperature and the third preset temperature may be set according to the vehicle design, battery characteristics and safety standards, and are used to measure whether the battery is in a lower temperature state. Optionally, the second preset temperature may be 45 degrees, and the third preset temperature may be 35 degrees.

[0063] In one embodiment of the present application, after determining that the battery temperature is not higher than the second preset temperature, the controller 11 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 are started.

[0064] The controller 21 will also send a battery heat dissipation cooling instruction to the seven-way valve 21. After receiving the motor heat dissipation instruction sent by the controller 11, the seven-way valve 21 controls the position of the valve core by rotating the driving mechanism, so that the first interface pipe A is connected to the fourth interface pipe D, and the third interface pipe C is connected to the fifth interface pipe E, so that the input pipe port of the battery circuit 13 is connected to the second output pipe port of the motor circuit 15, and the output pipe port of the battery circuit 13 is connected to the first input pipe port of the motor circuit 15, that is, the battery circuit 13 is connected to the circuit where the radiator is located, forming a battery heat dissipation circuit corresponding to the battery heat dissipation mode.

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

[0066] In some embodiments, the control instruction may include: a battery no heat dissipation instruction. The battery no heat dissipation instruction may be an instruction that the battery temperature is within a normal operating temperature range and does not require additional cooling, that is, an instruction to control the integrated thermal management system to implement a battery no heat dissipation mode in the thermal management mode.

[0067] The controller 11 is used to start the second water pump 23 b and send a battery non-heat dissipation instruction 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 driving mechanism to drive the valve core to rotate according to the battery non-heat dissipation instruction, connecting the fourth interface pipe D and the fifth interface pipe E to connect the battery circuit, forming a battery non-heat dissipation circuit corresponding to the battery non-heat dissipation mode.

[0069] In one embodiment of the present application, the controller 11 determines whether the battery temperature is higher than the 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 instruction to the seven-way valve 21.

[0070] After receiving the battery non-heat dissipation instruction sent by the controller 11, the seven-way valve 21 controls the valve core position by rotating the driving mechanism, so that the fourth interface tube D is connected with the fifth interface tube E, and the input pipe port and the output pipe port of the battery circuit 13 are connected, forming a battery non-heat dissipation circuit corresponding to the battery non-heat dissipation mode.

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

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

[0073] The integrated thermal management system provided in the embodiment of the present application can utilize the waste heat of the motor to heat the battery, and can also utilize the heating circuit 14 to heat the battery.

[0074] In some embodiments, the control instruction includes a first battery heating instruction. The first battery heating instruction is an instruction for realizing effective recovery of motor waste heat and using it for battery heating, that is, an instruction for controlling the integrated thermal management system to realize the 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 instruction 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 driving mechanism to drive the valve core to rotate according to the first battery heating instruction, connect the third interface tube C and the fifth interface tube E, and connect the second interface tube B and the fourth interface tube D, so that the second output pipe port of the motor circuit 15 is connected with the input pipe port of the battery circuit 13, and the input pipe port of the motor circuit 15 is connected with the output pipe port of the battery circuit 13, so as to form a first battery heating circuit corresponding to the first battery heating mode.

[0077] In one embodiment of the present application, the fourth preset temperature is less 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.

[0078] The battery temperature is not higher than the fourth preset temperature, indicating that the battery is in a medium-low temperature state and the battery needs a small amount of additional heat. The motor temperature exceeds the first preset temperature, indicating that the battery is in a high temperature state and there is 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, there is excess heat in the motor and the battery needs to be heated, the first water pump 23a and the second water pump 23b will be started, and the first battery heating instruction will be sent to the seven-way valve 21.

[0080] After the seven-way valve 21 receives the first battery heating instruction sent by the controller 11, the valve core position is controlled by rotating the driving mechanism to connect the third interface tube C with the fifth interface tube E, and the second interface tube B with the fourth interface tube D, so that the second output pipe port of the motor circuit 15 is connected to the output pipe port of the battery circuit 13, and the input pipe port of the motor circuit 15 is connected to the output pipe port of the battery circuit 13, and the waste heat of the motor is used to heat the coolant flowing into the battery circuit, so as to form a first motor heating circuit corresponding to the first motor heating mode.

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

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

[0083] In some embodiments, the control instruction includes a second battery heating instruction. The second battery heating instruction may be an instruction indicating that the battery is in a low temperature state, the motor has no excess heat, and an additional heating device is required for heating, that is, an instruction 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, and send a second battery heating instruction to the seven-way valve 21 when the battery temperature does not exceed the fourth preset temperature and the motor temperature does not exceed the first preset temperature.

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

[0086] In an implementation of the present 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 has no excess heat, the controller 11 controls the heating circuit 14 to heat the battery circuit 13. Specifically, the controller 11 starts the water heater 141, the second water pump 23b and the third water pump 23c.

[0087] The controller 11 generates a second battery heating instruction and sends the second battery heating instruction to the seven-way valve 21. After receiving the second battery heating instruction, the seven-way valve 21 controls the position of the valve core by rotating the driving mechanism, so that the fourth interface pipe D is connected to the seventh interface pipe G, and the sixth interface pipe F is connected to the fifth interface pipe E, so that the output pipe port of the battery circuit 13 is connected to the input pipe port of the heating circuit 14, and the output pipe port of the heating circuit 14 is connected to the input pipe port of the battery circuit 13, that is, the battery circuit 13 is connected to the heating circuit 14, forming a second battery heating circuit corresponding to the second battery heating mode.

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

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

[0090] In this way, the battery 131 is heated by the coolant heated in the heating circuit 14, thereby providing the required heat to the battery and increasing the battery temperature, so that when the battery temperature is too low, the battery can be heated to ensure that the battery can operate under safe temperature conditions.

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

[0092] In some embodiments, the control instruction includes a first passenger compartment heating instruction. The first passenger compartment heating instruction belongs to the passenger compartment heating instruction. The passenger compartment heating instruction refers to an instruction for implementing the passenger compartment heating function. The first passenger compartment heating instruction is specifically used to instruct the use of the water heater 141 to heat the passenger compartment when there is no excess heat in the battery and the motor.

[0093] The controller 11 starts the water heater 141 , the heater core 142 and the third water pump 23 c when a passenger compartment heating request is obtained and the battery temperature does not exceed the third preset temperature and the motor temperature does not exceed the first preset temperature.

[0094] The seven-way valve 21 is used to control the driving mechanism to drive the valve core to rotate according to the first passenger compartment heating instruction, connecting the sixth interface pipe F and the seventh interface pipe G to connect the heating circuit 14 to form a first passenger compartment heating circuit corresponding to the first passenger compartment heating mode.

[0095] In one embodiment of the present application, after receiving the passenger compartment heating request, the controller 11 determines whether the battery temperature exceeds the third preset temperature and whether the motor temperature exceeds the first preset temperature. When the battery temperature does not exceed the first preset temperature and the motor temperature does not exceed the first preset temperature, that is, 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 instruction 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 the passenger compartment heating request may be generated by a user's operation on the control panel or may be automatically generated when the temperature of the passenger compartment is at a relatively low temperature.

[0097] After the seven-way valve 21 receives the first passenger compartment heating instruction sent by the controller 11, it controls the valve core position by rotating the driving mechanism, so that the seventh interface pipe G is connected with the sixth interface pipe F, and the input pipe port and the output pipe port of the heating circuit 14 are connected, forming a first passenger compartment heating circuit corresponding to the first passenger compartment heating mode.

[0098] In the first passenger compartment heating circuit, the coolant flowing out of 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 warm air core 142, which generates hot air and is sent into the passenger compartment through the air duct. The coolant flowing out of the warm air core 142 is cooled, flows into the six-port pipe F of the seven-way valve 21 through the pipeline, and flows back to the seven-port pipe G of the seven-way valve 21 through the valve core. In this way, the first passenger compartment heating circuit heats the coolant through the water heater 141 and the heated coolant transfers heat to the air in the passenger compartment through the warm air core 142, thereby achieving the purpose of heating the passenger compartment.

[0099] In some embodiments, the control instruction includes a second passenger compartment heating instruction. The second passenger compartment heating instruction also belongs to the passenger compartment heating instruction. The second passenger compartment heating instruction is specifically used to instruct to use the motor heat to heat the battery first and then heat the passenger compartment when the motor has excess heat and the battery also needs heat.

[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, and send a second passenger compartment heating instruction to the seven-way valve 21 when a passenger compartment heating request is obtained, the motor temperature does not exceed the fifth preset temperature and the battery heating priority condition is met.

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

[0102] The battery heating priority condition involved in the embodiment of the present application may refer to a condition for determining the priority heating of the battery. Optionally, the battery heating priority condition may be that the battery requires more heat than the passenger compartment requires. The fifth preset temperature is higher than the first preset temperature, but does not exceed the battery allowable temperature. Optionally, the fifth preset temperature is 50 degrees.

[0103] After receiving the passenger compartment heating request, the controller 11 determines whether the motor temperature exceeds the fifth preset temperature, whether the battery temperature is lower than the fourth preset temperature, and whether the battery heating priority condition is met. If the passenger compartment needs to be heated, the motor temperature is higher than the first preset temperature and does not exceed the fifth preset temperature, the battery is in a low temperature state, and the battery heating priority condition is met, the controller 11 generates and sends a second passenger compartment heating instruction to the seven-way valve 21, and starts 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 passenger compartment heating instruction sent by the controller 11, the seven-way valve 21 controls the valve core position by rotating the driving mechanism, so that the fifth interface pipe E is connected with the third interface pipe C, the fourth interface port D is connected with the seventh interface port G, and the sixth interface pipe F is connected with the second interface pipe B, so that the input pipe port of the battery circuit 13 is connected with the second output pipe port of the motor circuit 15, the output pipe port of the battery circuit 13 is connected with the input pipe port of the heating circuit 14, and the output pipe port of the heating circuit 14 is connected with the input pipe port of the motor circuit 15, forming a second passenger compartment heating circuit corresponding to the second passenger compartment heating mode.

[0105] In the second passenger compartment heating circuit, the coolant flowing out of the second interface 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 is heated up and the motor is cooled down. The heated coolant flows to the third interface pipe C of the seven-way valve 21 through the second pipeline, and the coolant flowing in from the third interface pipe C flows to the fifth interface pipe E through the valve core.

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

[0107] The coolant flowing out of the seventh interface pipe G is pressurized by the third water pump 23c and flows to the water heater 141. The coolant flows into the heater core 142 through the water heater 141, and the heater core 142 generates hot air and is sent into the passenger compartment through the air duct. The coolant flowing out of the heater core 142 is cooled, flows into the six-port pipe F of the seven-way valve 21 through the pipeline, and flows back to the two-port pipe B of the seven-way valve 21 through the valve core.

[0108] It should be noted that in this mode, that is, the water heater 141 is not started, the coolant in the circuit is not heated.

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

[0110] In some embodiments, the control instruction includes a second passenger compartment heating instruction. The second passenger compartment heating instruction also belongs to the passenger compartment heating instruction. The second passenger compartment heating instruction is specifically used to instruct to use the motor heat to heat the passenger compartment and then heat the battery when the motor has excess heat and the battery also needs 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, and send a third passenger compartment heating instruction to the seven-way valve 21 when a passenger compartment heating request is obtained, 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.

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

[0113] The passenger compartment heating priority condition involved in the embodiment of the present application may be a condition for determining whether to give priority to heating the passenger compartment. Optionally, the passenger compartment heating priority condition may be that the heat demanded by the battery is less than the heat demanded by the passenger compartment.

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

[0115] After the seven-way valve 21 receives the second passenger compartment heating instruction sent by the controller 11, the valve core position is controlled by rotating the driving mechanism to connect the seventh interface pipe G with the third interface pipe C, connect the sixth interface port F with the fifth interface port E, and connect the fourth interface pipe D with the second interface pipe B, so that the input pipe port of the heating circuit 14 is connected with the second output pipe port of the motor circuit 15, the output pipe port of the heating circuit 14 is connected with the input pipe port of the battery circuit 13, and the output pipe port of the battery circuit 13 is connected with the input pipe port of the motor circuit 14, forming a third passenger compartment heating circuit corresponding to the third passenger compartment heating mode.

[0116] In the third passenger compartment heating circuit, the coolant flowing out of the second interface 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 is heated up and the motor is cooled down. The heated coolant flows to the third interface pipe C of the seven-way valve 21 through the second pipeline, and the coolant flowing in from the third interface pipe C flows to the seventh interface pipe G through the valve core.

[0117] The coolant flowing out of the seventh interface pipe G is pressurized by the third water pump 23c and flows to the water heater 141. The coolant flows into the heater core 142 through the water heater 141, and the heater core 142 generates hot air and is sent into the passenger compartment through the air duct. The coolant flowing out of the heater core 142 is cooled, flows into the six-port pipe F of the seven-way valve 21 through the pipeline, and flows into the five-port pipe E of the seven-way valve 21 through the valve core.

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

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

[0120] In some embodiments, the control instruction includes a fourth passenger compartment heating instruction. The fourth passenger compartment heating instruction also belongs to the passenger compartment heating instruction. The fourth passenger compartment heating instruction is specifically used to instruct to use the motor heat to heat the passenger compartment first when the motor has excess heat and the battery temperature is appropriate.

[0121] The controller 11 is used to start the heater core 142 , the first water pump 23 a , and the third water pump 23 c and send a fourth passenger compartment heating instruction to the seven-way valve 21 when a passenger compartment heating request is obtained and the motor temperature exceeds a first preset temperature.

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

[0123] In one embodiment of the present application, after receiving the passenger compartment heating request, the controller 11 determines whether the motor temperature exceeds the first preset temperature and whether the battery temperature is higher than the fourth preset temperature. When the passenger compartment needs to be heated, 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 instruction to the seven-way valve 21, and starts the heater core 141, the first water pump 23a, and the third water pump 23c.

[0124] After the seven-way valve 21 receives the second passenger compartment heating instruction sent by the controller 11, the valve core position is controlled by rotating the driving mechanism to connect the seventh interface pipe F with the third interface pipe C, and connect the sixth interface pipe F with the second interface pipe B, so that the input pipe port of the heating circuit 14 is connected with the second output pipe port of the motor circuit 13, and the output pipe port of the heating circuit is connected with the input pipe port of the battery circuit 13, thereby forming a fourth passenger compartment heating circuit corresponding to the fourth passenger compartment heating mode.

[0125] In the fourth passenger compartment heating circuit, the coolant flowing out of the second interface 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 is heated up and the motor is cooled down. The heated coolant flows to the third interface pipe C of the seven-way valve 21 through the second pipeline, and the coolant flowing in from the third interface pipe C flows to the seventh interface pipe G through the valve core.

[0126] The coolant flowing out of the seventh interface pipe G is pressurized by the third water pump 23c and flows to the water heater 141. The coolant flows into the heater core 142 through the water heater 141, and the heater core 142 generates hot air and is sent into the passenger compartment through the air duct. The coolant flowing out of the heater core 142 is cooled, flows into the six-port pipe F of the seven-way valve 21 through the pipeline, and flows back to the two-port pipe B of the seven-way valve 21 through the valve core.

[0127] In this way, by connecting the motor circuit with the heating circuit, the coolant can circulate in the motor circuit and the heating circuit, so that the passenger compartment is heated by utilizing the waste heat of the motor, thereby achieving the purpose of recovering the heat of the motor and heating the passenger compartment.

[0128] In some embodiments, the control instruction includes a fifth passenger compartment heating instruction. The fifth passenger compartment heating instruction also belongs to the passenger compartment heating instruction. The fifth passenger compartment heating instruction is specifically used to instruct to use the battery heat to heat the passenger compartment when the battery has excess heat and the motor temperature is appropriate.

[0129] The controller is used to start the heater core 142, the second water pump 23b and the third water pump 23c and send a fifth passenger compartment heating instruction to the seven-way valve when a passenger compartment heating request is obtained and the battery temperature exceeds a third preset temperature.

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

[0131] In one embodiment of the present application, after receiving the passenger compartment heating request, the controller 11 determines whether the motor temperature exceeds the first preset temperature and whether the battery temperature is higher than the third preset temperature. When the passenger compartment needs to be heated, the motor does not exceed the first preset temperature, that is, the motor has no excess heat, and the battery temperature is higher than the third preset temperature, that is, the battery has excess heat, the controller 11 generates and sends a fifth passenger compartment heating instruction to the seven-way valve 21, and starts the heater core 141, the second water pump 23b, and the third water pump 23c.

[0132] After the seven-way valve 21 receives the fifth passenger compartment heating instruction sent by the controller 11, the valve core position is controlled by rotating the driving mechanism to connect the fifth interface pipe E with the sixth interface pipe F, and connect the seventh interface pipe G with the fourth interface pipe D, so that the input pipe port of the battery circuit 13 is connected with the output pipe port of the heating circuit 14, and the input pipe port of the heating circuit 14 is connected with the output pipe port of the battery circuit 13, thereby forming a fifth passenger compartment heating circuit corresponding to the fifth passenger compartment heating mode.

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

[0134] The coolant flowing out of the seventh interface pipe G is pressurized by the third water pump 23c and flows to the water heater 141. The coolant flows into the warm air core 142 through the water heater 141, and the warm air core 142 generates hot air and is sent into the passenger compartment through the air duct. The coolant flowing out of the warm air core 142 is cooled, flows into the six-port pipe F of the seven-way valve 21 through the pipeline, and flows back to the five-port pipe E of the seven-way valve 21 through the valve core.

[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, so that the passenger compartment is heated by utilizing the waste heat of the battery, thereby achieving the purpose of recovering the battery heat and heating the passenger compartment and the battery together.

[0136] like Figure 4 The input pipe port of the air conditioning loop 16 is connected to the third pipe port J of the heat exchanger 132 , and the output pipe port of the air conditioning loop 16 is connected to the fourth pipe 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] Among them, the first expansion valve 161 and the second expansion valve 162 can be used to control the flow rate and pressure of the refrigerant. The evaporator 163 is used to evaporate the liquid refrigerant to form refrigerant vapor, so as to absorb the heat of the surrounding air and reduce the air temperature. The compressor 165 is used to compress the refrigerant vapor, increase the pressure and temperature of the refrigerant vapor, and provide circulation power for the refrigeration system. The condenser 164 is used to convert high-temperature and high-pressure refrigerant vapor into low-temperature and high-pressure liquid refrigerant. The gas-liquid separator 166 is used to store refrigerant and replenish refrigerant to the circuit. The gas-liquid separator 166 also has the function of vapor-liquid separation, and can transport the refrigerant vapor to the compressor 165 to ensure the stable operation of the circuit.

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

[0140] In some embodiments, the battery temperature is relatively high and natural heat dissipation cannot meet the battery heat dissipation requirements, so the battery temperature needs to be lowered through the cooling function of the air-conditioning circuit.

[0141] The control instruction may include a battery cooling instruction. The battery cooling instruction may be an instruction for realizing a function of lowering the battery temperature, that is, an instruction for controlling the integrated thermal management system to realize a battery cooling mode in a thermal management mode.

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

[0143] The seven-way valve 21 is used to control the driving mechanism to drive the valve core to rotate according to the battery cooling instruction, 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 and the air conditioning circuit 16 perform heat exchange to form a battery cooling circuit corresponding to the battery cooling mode.

[0144] It should be noted that, generally, if the motor temperature is at a suitable operating temperature and the battery temperature exceeds the suitable operating temperature, the radiator 152 is preferentially 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 starts the compressor 165 and the condenser 164 , opens the second expansion valve 162 to put the air conditioning circuit 16 in a cooling state, and sends a battery cooling instruction 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 instruction sent by the controller 11, the seven-way valve 21 controls the valve core position by rotating the driving mechanism, so that the fourth interface pipe D is connected with the fifth interface pipe E, so that the output pipe port of the battery circuit 13 is connected with the input pipe port of the battery circuit 13, and the battery circuit 13 is connected with the air conditioning circuit 16 through the heat exchanger 132, and the two perform heat exchange to form a battery cooling circuit corresponding to the battery cooling mode.

[0147] In the battery cooling circuit, the gas-liquid separator 166 is started to deliver refrigerant vapor to the compressor 165, the compressor 165 and the condenser 164 are started to convert the refrigerant vapor into a low-temperature liquid refrigerant, and the second expansion valve 162 is opened, so that the entire air-conditioning circuit 16 enters a cooling state. The low-temperature liquid refrigerant in the air-conditioning circuit 16 flows into the fourth pipe port K of the heat exchanger 132 through the second expansion valve 162. In addition, the coolant flowing in 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 pipe port H of the heat exchanger. In the heat exchanger 132, the low-temperature refrigerant and the coolant exchange heat to reduce the temperature of the coolant and increase the temperature of the refrigerant. The cooled coolant flows from the second pipe port I of the heat exchanger to the battery 131. The coolant flowing through the battery 131 takes away the heat of the battery 131 and flows to the fourth pipe port D of the seven-way valve 21 through a section of pipeline. At the same time, the heated refrigerant flows back to the gas-liquid separator 166 from the third pipe 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 to the external environment, thereby cooling the battery.

[0148] In some embodiments, the motor temperature is relatively high, and natural heat dissipation cannot meet the motor heat dissipation requirements, so the motor temperature needs to be lowered through the cooling function of the air-conditioning circuit.

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

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

[0151] It should be noted that when the air-conditioning circuit 16 is used to cool the motor 151, the battery needs to exceed the third preset temperature, that is, the battery is not in a low temperature state, to prevent the cooled condensate flowing out of the heat exchanger 132 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 starts the compressor 165 and the condenser 164, opens the second expansion valve 162 to put the air-conditioning circuit 16 in a cooling state, and sends a motor cooling instruction 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 instruction sent by the controller 11, the seven-way valve 21 controls the valve core position by rotating the driving 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 pipe mouth of the battery circuit 13 is connected to the input pipe mouth of the battery circuit 13, the output pipe mouth of the battery circuit 13 is connected to the input pipe mouth of the motor circuit 15, the second output pipe mouth of the motor circuit 15 is connected to the input pipe mouth 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 perform heat exchange to form a motor cooling circuit corresponding to the motor cooling mode.

[0154] In the motor cooling circuit, the gas-liquid separator 166 is started to deliver refrigerant vapor to the compressor 165, the compressor 165 and the condenser 164 are started to convert the refrigerant vapor into low-temperature liquid refrigerant, and the second expansion valve 162 is opened, so that the entire air-conditioning circuit 16 enters a refrigeration state. The low-temperature liquid refrigerant in the air-conditioning circuit 16 flows into the fourth pipe port K of the heat exchanger 132 through the second expansion valve 162.

[0155] And, the coolant flowing out of the second interface 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 temperature of the motor, the coolant flowing through the motor 151 is heated up and the motor is cooled down. The heated coolant flows to the third interface pipe C of the seven-way valve 21 through the second pipeline, and the coolant flowing in from the third interface pipe C flows to the fifth interface pipe E through the valve core.

[0156] The coolant flowing in 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 pipe port H of the heat exchanger. In the heat exchanger 132, the low-temperature refrigerant and the coolant exchange heat to reduce the temperature of the coolant and increase the temperature of the refrigerant. The cooled coolant flows from the second pipe port I of the heat exchanger to the battery 131. The coolant flowing through the battery 131 takes away the heat of the battery 131, flows to the four-port D of the seven-way valve 21 through a section of pipeline, and flows back to the second pipe port B through the valve core. At the same time, the heated refrigerant flows back to the gas-liquid separator 166 from the third pipe 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 achieving cooling of the motor.

[0158] In some embodiments, the integrated thermal management system may further include a plurality of sensors. The plurality of 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 arranged in the motor circuit 17 , and the third temperature sensor T3 is arranged in the battery circuit 13 .

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

[0160] The multiple sensors may also include a pressure sensor P and a pressure temperature sensor PT. Figure 4 As shown, a pressure sensor P and a pressure temperature sensor PT may be provided in the air conditioning circuit 16. The pressure sensor P is used to measure the pressure of the refrigerant at the compressor outlet, and the pressure temperature sensor PT is used to measure the pressure and temperature of the refrigerant at the compressor inlet.

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

[0162] like Figure 4 As shown, the integrated thermal management system also includes a fan FAN and a blower BLOW. The radiator 152, the condenser 164 and the fan FAN are integrated together. The heater core 142, the evaporator 163 and the blower BLOW are integrated together. In this way, the system volume can be reduced.

[0163] In one embodiment of the present application, the fan FAN is used for the exchange of the radiator and the condenser with 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] After receiving the passenger compartment cooling request, the integrated thermal management system will cool the passenger compartment through the air conditioning circuit 16. In some embodiments, the controller 11 is used to start the compressor 165, the condenser 164, and the evaporator 163, and open the first expansion valve 161 to put the air conditioning circuit 16 in a cooling state when receiving the passenger compartment cooling request. In addition, the controller 11 is also used to start the blower BLOW.

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

[0166] In the passenger compartment cooling circuit, the gas-liquid separator 166 is started to deliver refrigerant vapor to the compressor 165, the compressor 165 and the condenser 164 are started to convert the refrigerant vapor into a low-temperature liquid refrigerant, and the first expansion valve 161 is opened, the liquid refrigerant flows into the evaporator 163, the evaporator 163 converts the liquid refrigerant into refrigerant vapor by absorbing the heat of the air, the refrigerant vapor flows back to the gas-liquid separator 166, and the cold air generated by the evaporator 163 is delivered to the passenger compartment by the blower BLOW.

[0167] In some embodiments, the control instructions include passenger compartment and battery cooling instructions. The passenger compartment and battery cooling instructions may be instructions for simultaneously implementing the passenger compartment cooling function and the battery cooling function, that is, instructions for controlling the integrated thermal management system to implement the passenger compartment and battery cooling mode in the thermal management mode.

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

[0169] The six-way valve 21 is used to control the driving mechanism to drive the valve core to rotate according to the battery cooling instruction, so that the fifth interface tube E is connected with the sixth interface tube F, and the seventh interface tube G is connected with the fourth interface tube D, so that the input pipe port of the battery circuit 13 is connected with the output pipe port of the heating circuit 14, and the input pipe port of the heating circuit 14 is connected with the output pipe port of the battery circuit 13, and the battery circuit 15 and the air-conditioning circuit 16 perform heat exchange, so as 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 passenger compartment cooling principle in the passenger compartment and battery cooling circuit is the same as the passenger compartment cooling circuit in the aforementioned embodiment, and the battery cooling principle in the passenger compartment and battery cooling circuit is the same as the aforementioned passenger compartment cooling and battery cooling circuit. For the sake of brevity, it will not be repeated here.

[0171] In another aspect of the embodiments of the present application, a control method for an integrated thermal management system is provided, which is applied to any of the integrated thermal management systems described above.

[0172] In another aspect of the present application, a vehicle is provided. Figure 5 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application is shown. Figure 5 As shown, a vehicle 50 includes any of the integrated thermal management systems 51 described above.

[0173] It should be understood that the specific features, operations and details described hereinabove with respect to the system of the present application may also be similarly applied to the method and vehicle of the present application, or vice versa. In addition, each step of the method of the present application may be performed by a corresponding component or unit of the device or system of the present application.

[0174] It should be understood that each module / unit of the device of the present application can be implemented in whole or in part by software, hardware, firmware or a combination thereof. Each module / unit can be embedded in the processor of the electronic device or independent of the processor in the form of hardware or firmware, or can be stored in the memory of the electronic device in the form of software for the processor to call to perform 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 appreciate that the method steps of the present application can be completed by instructing related hardware such as electronic devices or processors through a computer program, and the computer program can be stored in a non-temporary computer-readable storage medium, and the computer program causes the steps of the present application to be executed when it is executed. Depending on the circumstances, any reference to memory, storage or other media herein 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 disk, etc. Examples of volatile memory include random access memory (RAM), external cache memory, etc.

[0176] The various technical features described above can be combined arbitrarily. Although all possible combinations of these technical features are not described, any combination of these technical features should be considered to be covered by this specification as long as there is no contradiction in such combination.

[0177] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An integrated thermal management system, characterized in that: include: 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 integrates: a seven-way valve, a water tank and three water pumps; The controller is used to generate a control instruction according to the thermal management mode, and the control instruction is used to control the connection state 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, and at least one end of the water tank is connected to the motor circuit; The seven-way valve comprises: seven interface pipes, a valve core and a driving mechanism; the seven interface pipes are respectively connected to the battery circuit, the heating circuit and the motor circuit; The seven-way valve is used to control the driving mechanism to drive the valve core to rotate according to the control instruction, so as to connect at least two target interface pipes among the seven interface pipes, so that the pipe openings of the target circuit connected to the at least two target interface pipes are connected, thereby forming a thermal management circuit corresponding to the thermal management mode.

2. The system according to claim 1, characterized in that The seven interface tubes are respectively a first interface tube, a second interface tube, a third interface tube, a fourth interface tube, a fifth interface tube, a sixth interface tube and a seventh interface tube; the seven interface tubes are respectively connected to the battery circuit, the heating circuit and the motor circuit, and include: The first interface pipe is connected to the first output pipe port of the motor circuit; The second interface pipe is connected to the input pipe port of the motor circuit; The third interface pipe is connected to the second output pipe port of the motor circuit; The fourth interface pipe is connected to the output pipe port of the battery circuit; The fifth interface tube is connected to the input tube port of the battery circuit; The sixth interface pipe is connected to the output pipe port of the heating circuit; The seventh interface pipe is connected to the input pipe opening of the heating circuit.

3. The system according to claim 2, 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 input pipe port of the first water pump is connected to the second interface pipe, the output pipe port of the first water pump is connected to the input pipe port of the motor, the output pipe port of the motor and the third interface pipe are connected to the first pipe port of the radiator, and the second pipe port of the radiator is connected to the first interface pipe.

4. The system according to claim 2, characterized in that 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 pipe port of the second water pump, the output pipe port of the second water pump is connected to the first pipe port of the heat exchanger, the second pipe port of the heat exchanger is connected to the input pipe port of the battery, and the output pipe port of the battery is connected to the fourth interface pipe.

5. The system according to claim 2, 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 input pipe opening of the third water pump is connected to the seventh interface pipe, the output pipe opening of the third water pump is connected to the input pipe opening of the water heater, the output pipe opening of the water heater is connected to the input pipe opening of the warm air core, and the output pipe opening of the warm air core is connected to the sixth interface pipe.

6. The system according to claim 3, characterized in that The control instructions include motor cooling instructions, The controller is used to start the radiator and the first water pump and send a motor cooling instruction to the seven-way valve when the motor temperature exceeds a first preset temperature; The seven-way valve is used to control the drive mechanism to drive the valve core to rotate according to the motor heat dissipation instruction, connect the first interface pipe with the second interface pipe, so that the input pipe port of the motor circuit is connected with the first output pipe port, forming a motor heat dissipation circuit corresponding to the motor heat dissipation mode.

7. The system according to claim 3, characterized in that The control instructions include a motor no heat dissipation instruction, The controller is used to start the first water pump and send a motor no heat dissipation instruction 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 drive the valve core to rotate according to the motor no heat dissipation instruction, connect the second interface pipe with the third interface pipe, so that the input pipe port of the motor circuit is connected with the second output pipe port, forming a motor no heat dissipation circuit corresponding to the motor no heat dissipation mode.

8. The system according to claim 3, characterized in that The control instructions include: battery cooling instructions, The controller is used to start the radiator and the second water pump and send a battery cooling instruction to the seven-way valve when the battery temperature does not exceed the second preset temperature and exceeds the third preset temperature; The seven-way valve is used to control the driving mechanism to drive the valve core to rotate according to the battery heat dissipation instruction, connect the first interface pipe with the fourth interface pipe, and connect the third interface pipe with the fifth interface pipe, so that the input pipe port of the battery circuit is connected with the second output pipe port of the motor circuit, and the output pipe port of the battery circuit is connected with the first output pipe port of the motor circuit, so as to form a battery heat dissipation circuit corresponding to the battery heat dissipation mode.

9. The system according to claim 4, characterized in that The control instructions include a battery no heat dissipation instruction, The controller is used to start the second water pump and send a battery no heat dissipation instruction to the seven-way valve when the battery temperature does not exceed a third preset temperature; The seven-way valve is used to control the driving mechanism to drive the valve core to rotate according to the battery no heat dissipation instruction, connect the fourth interface pipe and the fifth interface pipe, so that the battery circuit is connected to form a battery no heat dissipation circuit corresponding to the battery no heat dissipation mode.

10. The system according to claim 4, characterized in that The control instruction includes a first battery heating instruction, The controller is used to start the first water pump and the second water pump and send the first battery heating instruction 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 instruction, connect the third interface pipe with the fifth interface pipe, and connect the second interface pipe with the fourth interface pipe, so that the second output pipe port of the motor circuit is connected with the input pipe port of the battery circuit, and the input pipe port of the motor circuit is connected with the output pipe port of the battery circuit, so as to form a first battery heating circuit corresponding to the first battery heating mode.

11. The system according to claim 5, characterized in that The control instruction includes a second battery heating instruction, The controller is used for starting the water heater, the second water pump and the third water pump, and sending the second battery heating instruction to the seven-way valve when the battery temperature does not exceed the fourth preset temperature and the motor temperature does not exceed the first preset temperature; The seven-way valve is used to control the driving mechanism to drive the valve core to rotate according to the second battery heating instruction, connect the fourth interface pipe with the seventh interface pipe, and connect the fifth interface pipe with the sixth interface pipe, so that the input pipe port of the heating circuit is connected with the output pipe port of the battery circuit, and the output pipe port of the heating circuit is connected with the input pipe port of the battery circuit, so as to form a second battery heating circuit corresponding to the second battery heating mode.

12. The system according to claim 5, characterized in that The control instructions include a first passenger compartment heating instruction, The controller is used to start the water heater, the heater core and the third water pump when a passenger compartment heating request is obtained 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 driving mechanism to drive the valve core to rotate according to the first passenger compartment heating instruction, connecting the sixth interface pipe and the seventh interface pipe to connect the heating circuit to form a first passenger compartment heating circuit corresponding to the first passenger compartment heating mode.

13. The system according to claim 5, characterized in that The control instructions include a second passenger compartment heating instruction and a third passenger compartment heating instruction, the controller is configured to start the heater core, the first water pump, the second water pump and the third water pump, and send the second passenger compartment heating instruction to the seven-way valve when a passenger compartment heating request is obtained, the motor temperature does not exceed a fifth preset temperature and a battery heating priority condition is satisfied; The seven-way valve is used to control the drive mechanism to drive the valve core to rotate according to the second passenger compartment heating instruction, connect the fifth interface pipe with the third interface pipe, connect the fourth connection port with the seventh connection port, and connect the sixth interface pipe with the second interface pipe, so that the input pipe port of the battery circuit is connected with the second output pipe port of the motor circuit, the output pipe port of the battery circuit is connected with the input pipe port of the heating circuit, and the output pipe port of the heating circuit is connected with the input pipe port of the motor circuit, so as to form a second passenger compartment heating circuit corresponding to the second passenger compartment 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, and send the third passenger compartment heating instruction to the seven-way valve when a passenger compartment heating request is obtained, the battery temperature does not exceed a fourth preset temperature, the motor temperature exceeds a first preset temperature, and a passenger compartment heating priority condition is met; The seven-way valve is used to control the drive mechanism to drive the valve core to rotate according to the third passenger compartment heating instruction, connecting the seventh interface pipe with the third interface pipe, connecting the sixth connection port with the fifth connection port, and connecting the fourth interface pipe with the second interface pipe, so that the input pipe port of the heating circuit is connected with the second output pipe port of the motor circuit, the output pipe port of the heating circuit is connected with the input pipe port of the battery circuit, and the output pipe port of the battery circuit is connected with the input pipe port of the motor circuit, forming a third passenger compartment heating circuit corresponding to the third passenger compartment heating mode.

14. The system according to claim 5, characterized in that The control instructions include a fourth passenger compartment heating instruction and a fifth passenger compartment heating instruction, The controller is used to start the heater core, the first water pump, and the third water pump, and send the fourth passenger compartment heating instruction to the seven-way valve when a passenger compartment heating request is obtained and the motor temperature exceeds a first preset temperature; The seven-way valve is used to control the driving mechanism to drive the valve core to rotate according to the fourth passenger compartment heating instruction, connect the seventh interface pipe with the third interface pipe, and connect the sixth interface pipe with the second interface pipe, so that the input pipe port of the heating circuit is connected with the second output pipe port of the motor circuit, and the output pipe port of the heating circuit is connected with the input pipe port of the battery circuit, so as to form a fourth passenger compartment heating circuit corresponding to the fourth passenger compartment heating mode; or, the controller is used to start the heater core, the second water pump and the third water pump and send the fifth passenger compartment heating instruction to the seven-way valve when a passenger compartment heating request is obtained and the battery temperature exceeds a third preset temperature; The seven-way valve is used to control the drive mechanism to drive the valve core to rotate according to the fifth passenger compartment heating instruction, connecting the fifth interface pipe with the sixth interface pipe, and connecting the seventh interface pipe with the fourth interface pipe, so that the input pipe port of the battery circuit is connected with the output pipe port of the heating circuit, and the input pipe port of the heating circuit is connected with the output pipe port of the battery circuit, forming a fifth passenger compartment heating circuit corresponding to the fifth passenger compartment heating mode.

15. The system according to claim 4, characterized in that It also includes an air conditioning loop, wherein an input pipe port of the air conditioning loop is connected to the third pipe port of the heat exchanger, and an output pipe port of the air conditioning loop is connected to the fourth pipe port of the heat exchanger.

16. The system according to claim 15, characterized in that 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 pipe port of the second expansion valve is connected to the third pipe port of the heat exchanger, the input pipe port of the second expansion valve is respectively connected to the input pipe port of the first expansion valve and the output pipe port of the condenser, the output pipe port of the condenser is connected to the output pipe port of the compressor, the input pipe port of the compressor is connected to the output pipe port of the gas-liquid separator, the input pipe port of the gas-liquid separator is respectively connected to the output pipe port of the evaporator and the fourth pipe port of the heat exchanger, and the input pipe port of the evaporator is connected to the output pipe port of the first expansion valve.

17. The system according to claim 16, characterized in that The control instructions include battery cooling instructions and motor cooling instructions; The controller is used to start the compressor, the condenser and the second water pump, open the second expansion valve to put the air conditioning circuit in a cooling state, and send a battery cooling instruction to the seven-way valve when the battery temperature exceeds a second preset temperature; The seven-way valve is used to control the driving mechanism to drive the valve core to rotate according to the battery cooling instruction, connect the fourth interface pipe with the fifth interface pipe, so that the battery circuit is connected, and the battery circuit and the air conditioning circuit perform heat exchange 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 to put the air conditioning circuit in a cooling state, and send a motor cooling instruction to the seven-way valve when the motor temperature is higher than a first preset temperature and the battery temperature exceeds a third preset temperature; The seven-way valve is used to control the drive mechanism to drive the valve core to rotate according to the battery cooling instruction, connect the fourth interface pipe with the second interface pipe, and connect the fifth interface pipe with the third interface pipe, so that the output pipe port of the battery circuit is connected with the input pipe port of the motor circuit, the input pipe port of the battery circuit is connected with the second output pipe port of the motor circuit, and the battery circuit and the air-conditioning circuit perform heat exchange to form a motor cooling circuit corresponding to the motor cooling mode.

18. A control method for an integrated thermal management system, characterized in that: Applicable to the integrated thermal management system as claimed in any one of claims 1 to 17.

19. A vehicle, characterized in that: Comprising an integrated thermal management system as claimed in any one of claims 1 to 17.

Images