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 five-way valve integrated module, a motor loop, a battery loop, a heating loop and a controller. Wherein the five-way valve integration module is integrated with a five-way valve 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 five-way valve integration module, the motor loop and the battery loop; the three water pumps are respectively connected in series with the battery loop, the heating loop and the motor loop; and the five-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 connector pipes in the five connector pipes, so that pipe orifices of target loops connected with the at least two target connector pipes are communicated, and a heat management loop corresponding to the 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 field of thermal management technology, 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 the first aspect, the application embodiment provides an integrated thermal management system, including: a five-way valve integrated module, a motor circuit, a battery circuit, a heating circuit and a controller; wherein the five-way valve integrated module integrates: a five-way valve 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 five-way valve integrated module and the motor circuit and the battery circuit; the three water pumps are respectively a first water pump, a second water pump and a third water pump, and the three water pumps are respectively connected in series with the battery circuit, the heating circuit and the motor circuit; the five-way valve includes: five interface pipes, a valve core and a driving mechanism; the five interface pipes are respectively connected to the three pipe openings of the motor circuit and the two pipe openings of the battery circuit; the five-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 five interface pipes, so that the pipe openings 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 a highly integrated five-way integrated valve module formed by multiple water pumps and five-way valves to each circuit, precise control of the connectivity status of each circuit can be achieved to meet different thermal management requirements, and simplify the system structure, reduce the number of connecting pipes in the system, reduce the overall volume of the system, improve the conversion ratio between energy and energy, reduce energy loss, and reduce the number of required control signals, 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 five-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] On the one hand, an embodiment 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 five-way valve integrated module 12 , a motor circuit 13 , a battery circuit 14 and a heating circuit 15 .

[0017] The controller 11 establishes communication connection with the five-way valve integrated module 12, the motor circuit 13, the battery circuit 14 and the heating circuit 1. The five-way valve integrated module 12 is connected to the motor circuit 13 and the battery circuit 14.

[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 five-way valve integrated module 12. The control instructions may be used to control the connection state between the five-way valve integrated module 12 and the motor circuit 13 and the battery circuit 14. The control instructions may also be used to control the connection state between the heating circuit 15 and the battery circuit 14.

[0019] In addition, the control instruction can also be used to indicate the working state of each circuit. Among them, the working state of the motor circuit 13 can include but is not limited to the motor heat dissipation state and the like.

[0020] like Figure 2 As shown, the integrated thermal management system 10 may further include an air conditioning circuit 16 . The air conditioning circuit 16 may perform heat exchange with the battery circuit 14 , thereby reducing the temperature of the coolant in the battery circuit 14 .

[0021] Figure 3 A schematic diagram of the structure of a five-way valve integrated module provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the five-way valve integrated module 12 integrates: a five-way valve 21 and three water pumps 22 .

[0022] The three water pumps 22 are respectively a first water pump 22a, a second water pump 22b and a third water pump 22c. The three water pumps 22 can be connected in series with the battery circuit 14, the heating circuit 15 and the motor circuit 13 respectively.

[0023] The five-way valve 21 includes a housing, a driving mechanism, a valve core and five interface pipes. Specifically, the five 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.

[0024] The five interface pipes are connected to the three pipe openings of the motor circuit 13 and the two pipe openings of the battery circuit 14 respectively.

[0025] The five-way valve 21 is used to control the driving mechanism to drive the valve core to rotate according to the control instruction, connecting at least two target interface pipes among the five 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.

[0026] It should be noted that the thermal management modes involved in the embodiments of the present application may include but are not limited to motor non-cooling mode, motor cooling mode, battery heat dissipation cooling mode, battery heating mode, battery waste heat recovery mode, first motor waste heat recovery mode, second motor waste heat recovery mode, third motor waste heat recovery mode and battery air conditioning cooling mode.

[0027] 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. The three water pumps 22 can be connected in series with the battery circuit 14, the heating circuit 15 and the motor circuit 13 respectively, and can include: a first water pump 22a connected in series in the motor circuit 13, a second water pump 22b connected in series in the heating circuit 15 and a third water pump 22c connected in series in the battery circuit 14.

[0028] like Figure 4 As shown, the six interface pipes of the five-way valve 21 are a first interface pipe A, a second interface pipe B, a third interface pipe C, a fourth interface pipe D, and a fifth interface pipe E respectively.

[0029] The five interface tubes are respectively connected to the three tube ports of the motor circuit and the two tube ports of the battery circuit, including: the first interface tube A is connected to the output tube port of the battery circuit 14. The second interface tube B is connected to the second input tube port of the motor circuit 13. The third interface tube C is connected to the first input tube port of the motor circuit 13. The fourth interface tube D is connected to the output tube port of the motor circuit 13. The fifth interface tube E is connected to the input tube port of the battery circuit 14.

[0030] like Figure 4 As shown, the motor circuit 13 includes: a second water tank 131, a radiator 132 and a motor 133. The radiator 132 is used to dissipate heat from the coolant in the circuit to reduce the temperature of the coolant. The second water tank 131 can be used to replenish the coolant to the motor circuit 133.

[0031] The first input pipe opening of the second water tank 131 is the first input pipe opening of the motor circuit 13, which is connected to the third interface pipe C through a first pipeline. The second input pipe opening of the second water tank 131 is connected to the output pipe opening of the radiator 132 through a second pipeline. The input pipe opening of the radiator 132 is the second input pipe opening of the motor circuit 13, which is connected to the second interface pipe B.

[0032] The output port of the second water tank 131 is connected to the input port of the first water pump 22a. The output port of the first water pump 22a is connected to one port of the motor 133. The other port of the motor 133 is the output port of the motor circuit 13 and is connected to the fourth interface pipe D.

[0033] There is a common pipeline between the first pipeline and the second pipeline. That is, the coolant flowing in from the first input pipe opening of the second water tank 131 will flow into the second water tank 131 through the common pipeline, and the coolant flowing in from the second input pipe opening of the second water tank 131 will also flow into the second water tank 131 through the common pipeline.

[0034] In some embodiments, the control instruction may include a motor non-cooling instruction. The motor non-cooling instruction may be an instruction that the battery temperature is within a normal temperature range and does not require additional cooling, that is, an instruction to control the integrated thermal management system to implement a motor non-cooling mode in a thermal management mode.

[0035] The controller 11 is used to start the first water pump 22a and the second water tank 131 and send a motor non-cooling instruction to the five-way valve 21 when the motor temperature is not higher than the first preset temperature.

[0036] The five-way valve 21 is used to control the driving mechanism to drive the valve core to rotate according to the motor non-cooling instruction, connecting the third interface pipe C and the fourth interface pipe D, so that the first input pipe port and the output pipe port of the motor circuit 13 are connected, forming a motor non-cooling circuit corresponding to the motor non-cooling mode.

[0037] The motor temperature involved in the embodiment of the present application refers to the current temperature of the motor 133. The first preset temperature can be set according to the vehicle design, motor characteristics and safety standards, and is used to measure whether the motor temperature is safe. Optionally, the motor temperature is 40 degrees.

[0038] 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 non-cooling instruction to the five-way valve 21. At the same time, the controller 11 also starts the first water pump 22a and the second water tank 131.

[0039] After the five-way valve 21 receives the motor non-cooling 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 fourth interface pipe D, and the first input pipe port and the output pipe port of the motor circuit 13 are connected, that is, the first pipeline of the motor circuit 13 is connected with the motor, forming a motor non-cooling circuit corresponding to the motor non-cooling mode.

[0040] In the non-cooling circuit of the motor, the coolant flows from the third interface pipe C of the five-way valve 21 into the first input pipe port of the motor circuit 13, and flows into the second water tank 131 through the first pipeline. The coolant flowing out of the second water tank 131 is pressurized by the first water pump 22a and flows to the motor 133. The coolant flowing through the motor 133 flows into the fourth interface pipe D of the five-way valve 21, and flows back to the third interface pipe C through the valve core of the five-way valve. In this way, the non-cooling circuit of the motor 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.

[0041] In some embodiments, the control instruction may include a motor cooling instruction. The motor cooling instruction may be an instruction indicating that the motor temperature exceeds a safe temperature and requires an additional cooling device for cooling, that is, an instruction to control the integrated thermal management system to implement a motor cooling mode in a thermal management mode.

[0042] The controller 11 is used to start the first water pump 22a, the second water tank 131 and the radiator 132, and send a motor cooling instruction to the five-way valve 21 when the motor temperature is higher than a first preset temperature.

[0043] The five-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the motor cooling instruction, connect the second interface pipe B and the fourth interface pipe D, so that the second input pipe port and the output pipe port of the motor circuit 13 are connected to form a motor cooling circuit corresponding to the motor cooling mode.

[0044] In one embodiment of the present application, when the temperature of the motor is higher than the first preset temperature, it indicates that the motor is in a high temperature state and now needs other equipment to assist in cooling down.

[0045] Specifically, when the controller 11 determines that the motor temperature is higher than the first preset temperature, the controller 11 starts the radiator 132 so that the coolant in the motor circuit dissipates heat through the radiator 132, thereby reducing the temperature of the motor 133. The controller 11 also starts the first water pump 22a and the second water tank 131.

[0046] The controller 11 also sends a motor cooling instruction to the five-way valve 21. After receiving the motor cooling instruction sent by the controller 11, the five-way valve 21 controls the valve core position by rotating the driving mechanism, so that the second interface pipe B is connected with the fourth interface pipe D, so that the second input pipe port and the output pipe port of the motor circuit 13, that is, the radiator 132 is connected with the motor 133 through the second pipeline, forming a motor cooling circuit corresponding to the motor cooling mode.

[0047] In the motor cooling circuit, the coolant flows from the second interface pipe B of the five-way valve 21 into the second input pipe port of the motor circuit 13, and flows into the radiator 132 along the pipeline. Since the radiator 132 has a heat dissipation function, the coolant flowing out of the radiator 132 is cooled. The cooled coolant flows into the second water tank 131 through the second pipeline, and the coolant flowing out of the second water tank 131 is pressurized by the first water pump 22a and flows to the motor 133. The coolant flowing through the motor 133 can take away the heat of the motor 133, so that the motor is cooled. At the same time, the coolant flowing out of the motor 133 flows to the fourth interface pipe D of the five-way valve 21, and flows back to the second interface pipe B through the valve core of the five-way valve. In this way, the coolant circulates in the motor heat dissipation circuit, so that the coolant is used to take away the heat of the motor, and the coolant is cooled by the radiator, so as to achieve the purpose of motor heat dissipation.

[0048] In some embodiments, Figure 4 As shown, the battery circuit 14 may include a battery 141 and a dual heat exchanger 142. The dual heat exchanger 142 may be used for water / water heat exchange and water / refrigerant heat exchange. The dual heat exchanger 142 may include six pipe openings, namely a first pipe opening F, a second pipe opening G, a third pipe opening H, a fourth pipe opening I, a fifth pipe opening J, and a sixth pipe opening K.

[0049] Specifically, the input pipe outlet of the third water pump 22c can be used as the input pipe outlet of the battery circuit and is connected to the fifth interface pipe E. The output pipe outlet of the third water pump 22c is connected to one end of the battery 141. The other end of the battery 141 is connected to the first pipe outlet F of the dual heat exchanger 142. The second pipe outlet G of the dual heat exchanger is the output pipe outlet of the battery circuit and is connected to the first interface pipe A.

[0050] It should be noted that all components in the battery circuit 14 are connected through pipelines.

[0051] In some embodiments, the control instruction may include: a battery non-cooling instruction. The battery non-cooling 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 non-cooling mode in a thermal management mode.

[0052] The controller 11 is used to start the third water pump 22 c and send a battery non-cooling instruction to the five-way valve 21 when the battery temperature is not higher than the second preset temperature.

[0053] The five-way valve 21 is used to control the driving mechanism to drive the valve core to rotate according to the battery non-cooling instruction, connect the first interface pipe A and the fifth interface pipe E to connect the battery circuit 14, and form a battery non-cooling circuit corresponding to the battery non-cooling mode.

[0054] The battery temperature involved in the embodiment of the present application may be the current temperature of the battery. The second preset temperature may be set according to the vehicle design, battery characteristics and safety standards, and is used to measure whether the battery is in a lower temperature state. Optionally, the second preset temperature may be 35 degrees.

[0055] In one embodiment of the present application, the controller 11 determines whether the battery temperature is higher than the second preset temperature. When the battery temperature is not higher than the second preset temperature, the controller 11 starts the third water pump 22c and sends a battery non-cooling instruction to the five-way valve 21.

[0056] After receiving the battery non-cooling instruction sent by the controller 11, the five-way valve 21 controls the valve core position by rotating the driving mechanism, so that the first interface tube A is connected with the fifth interface tube E, and the input pipe port and the output pipe port of the battery circuit 14 are connected, forming a battery non-cooling circuit corresponding to the battery non-cooling mode.

[0057] In the battery cooling circuit, the coolant flows from the fifth interface pipe E to the third water pump 22c, and flows to the battery 141 after being pressurized by the third water pump 22c. The coolant flowing out of the battery 141 flows into the first pipe port F of the double heat exchanger 142 through the pipeline, flows into the double heat exchanger 142, and flows out from its second pipe port G. The coolant flowing out of the heat exchanger 142 flows to the first interface pipe A of the five-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.

[0058] In some embodiments, the control instruction includes a battery heat dissipation and cooling instruction. The battery heat dissipation and 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, that is, an instruction to control the integrated thermal management system to implement the battery heat dissipation and cooling mode in the thermal management mode.

[0059] The controller 11 is used to start the first water pump 22a, the second water tank 131, the third water pump 22c and the radiator 132, and send a battery heat dissipation cooling instruction to the five-way valve 21 when the battery temperature is higher than the second preset temperature and not higher than the third preset temperature.

[0060] The five-way valve 21 is used to control the driving mechanism to drive the valve core to rotate according to the battery heat dissipation and cooling instruction, connect the first interface pipe A and the second interface pipe B, and connect the fourth interface pipe D and the fifth interface pipe E, so that the battery circuit 14 is connected with the second input pipe port and the output pipe port of the motor circuit 13, forming a battery heat dissipation and cooling circuit corresponding to the battery heat dissipation and cooling mode.

[0061] The third preset temperature involved in the embodiment of the present application is higher than the second preset temperature. The third preset temperature can be set according to the vehicle design, battery characteristics and safety standards, and is used to measure whether the battery is in a slightly higher temperature state. Optionally, the third preset temperature can be 45 degrees.

[0062] It should be noted that in the battery cooling mode, the motor temperature is at a normal temperature state, and no radiator is needed for cooling or the motor does not work.

[0063] In one embodiment of the present application, after determining that the battery temperature is 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 first water pump 22a, the second water tank 131, the third water pump 22c and the radiator 132 are started.

[0064] The controller 11 will also send a battery heat dissipation and cooling instruction to the five-way valve. After receiving the motor cooling instruction sent by the controller 11, the five-way valve 21 controls the valve core position by rotating the driving mechanism, so that the first interface pipe A is connected to the second interface pipe B, and the fourth interface pipe D is connected to the fifth interface pipe E, so that the input pipe port of the battery circuit 14 is connected to the output pipe port of the motor circuit 13, and the output pipe port of the battery circuit 14 is connected to the second input pipe port of the motor circuit 13, that is, the battery circuit is connected to the circuit where the radiator is located, forming a battery heat dissipation and cooling circuit corresponding to the battery heat dissipation and cooling mode.

[0065] In the battery heat dissipation cooling circuit, the coolant flows from the second interface pipe B of the five-way valve 21 into the second input pipe port of the motor circuit 13, and flows into the radiator 132 along the pipeline. Since the radiator 132 has a heat dissipation function, the coolant flowing out of the radiator 132 is cooled. The cooled coolant flows into the second water tank 131 through the second pipeline, and the coolant flowing out of the second water tank 131 is pressurized by the first water pump 22a and flows to the motor 133. The coolant flowing out of the motor 133 flows to the fourth interface pipe D of the five-way valve 21, and flows to the fifth interface pipe E through the valve core of the five-way valve. The coolant flowing in from the fifth interface pipe E flows to the battery 141 under pressure by the third water pump 22c. The coolant flowing out of the battery 141 can take away the heat of the battery, and flows into the first pipe port F of the double heat exchanger 142 through the pipeline, and flows into the double heat exchanger 142, and flows out from its second pipe port G. The coolant flowing out of the heat exchanger 142 flows to the first interface pipe A of the five-way valve 21, and flows back to the second interface pipe B through the valve core. In this way, the coolant circulates in the battery heat dissipation cooling circuit, so that the coolant is used to take away the heat of the battery, and the radiator is used to cool the coolant, thereby achieving the purpose of battery heat dissipation.

[0066] In some embodiments, Figure 4As shown, the heating circuit 15 may include a three-way valve 151 , that is, a water heater 152 , a first water tank 153 and a warm air core 154 .

[0067] The three-way valve 151 includes: a sixth interface pipe L, a seventh interface pipe M and an eighth interface pipe N. The sixth interface pipe L is connected to the output pipe port of the water heater 152, the input pipe port of the water heater 152 is connected to the output pipe port of the second water pump 22b, the input pipe port of the second water pump 22b is connected to the output pipe port of the first water tank 153, and the input pipe port of the first water tank 153 is respectively connected to the fourth pipe port I of the double heat exchanger 142 and the output pipe port of the warm air core 154. The seventh pipe port M is connected to the input pipe port of the warm air core 154. The eighth interface pipe N is connected to the third pipe port H of the double heat exchanger 154.

[0068] The three-way valve 151 may also include a driving mechanism and a valve core. The working principle of the three-way valve 151 is not specifically limited in this application.

[0069] The controller 11 is also used to send a control instruction to the three-way valve 151 .

[0070] The three-way valve 151 is used to connect two of the interface pipes according to the control instruction to assist in forming a thermal management loop corresponding to the thermal management mode.

[0071] The controller 11 may also be used to control the working state of the heating circuit 15. The working state of the heating circuit may include but is not limited to a heating state, a warm air state, and a heating-warm air state.

[0072] In some embodiments, the control instruction includes: a battery heating instruction. The battery heating instruction may be an instruction indicating that the battery is in a low temperature state and requires an additional heating device for heating, that is, an instruction for controlling the integrated thermal management system to implement a battery heating mode in a thermal management mode.

[0073] The controller 11 is used to turn on the water heater 152 , the first water tank 153 , the second water pump 22 b and the third water pump 22 c , and send a battery heating instruction to the three-way valve 151 and the five-way valve 21 when the battery temperature is lower than a fourth preset temperature.

[0074] The three-way valve 151 is used to control the sixth interface pipe L and the eighth interface pipe N of the three-way valve 151 to be connected according to the battery heating instruction, so that the coolant in the battery circuit 14 and the heating circuit 15 can exchange heat in the dual heat exchanger 142.

[0075] The five-way valve 21 is used to control the driving mechanism to drive the valve core to rotate according to the heating instruction, connect the first interface pipe A and the fifth interface pipe E, so that the battery circuit 14 is connected to form a battery heating circuit corresponding to the battery heating mode.

[0076] The fourth preset temperature involved in the embodiment of the present application is lower than the second preset temperature. The fourth preset temperature can be set according to the vehicle design, battery characteristics and safety standards, and is used to measure whether the battery is in a low temperature state. Optionally, the fourth preset temperature can be 5 degrees.

[0077] In the embodiment of the present application, after determining that the battery temperature is lower than the second preset temperature, the controller will continue to determine whether the battery temperature is not higher than the fourth preset temperature. When the battery temperature is lower than the fourth preset temperature, the controller 11 will control the heating circuit to heat the battery circuit. Specifically, the controller 11 will start the water heater 152, the first water tank 153, the second water pump 22b and the third water pump 22c.

[0078] The controller 11 sends a battery heating instruction to the three-way valve 151 and the five-way valve 21. After receiving the battery heating instruction sent by the controller 11, the three-way valve 151 controls the position of the valve core by rotating the driving mechanism, so that the sixth interface pipe L is connected to the eighth interface pipe N, so that the water heater 152 is connected to the dual heat exchanger 142, so that the coolant in the battery circuit can exchange heat with the coolant in the heating circuit, thereby increasing the temperature of the coolant in the battery circuit.

[0079] After receiving the battery heating instruction sent by the controller 11, the five-way valve 21 controls the valve core position by rotating the driving mechanism, so that the first interface tube A is connected with the fifth interface tube E, so that the input pipe port and the output pipe port of the battery circuit 14 are connected, forming a battery heating circuit corresponding to the battery heating mode.

[0080] In the battery heating circuit, the coolant flowing out from the fifth interface pipe E of the five-way valve 21 is pressurized by the third water pump 22c and flows to the battery 141. The coolant flowing out from the battery 141 flows into the dual heat exchanger 142 from the first pipe port F of the dual heat exchanger 142.

[0081] In addition, the coolant flowing out of the first water tank 153 is pressurized by the second water pump 22b and then flows to the water heater 152. After being heated by the water heater 152, the coolant flows to the sixth interface pipe L of the three-way valve 151, and flows out from the eighth interface pipe N through the valve core. The heated coolant flowing out of the three-way valve 151 flows into the dual heat exchanger 154 from the third pipe port H of the dual heat exchanger 154.

[0082] At this time, the temperature of the coolant flowing in from the battery circuit 14 is lower than the temperature of the coolant flowing in from the heating circuit 15. Therefore, in the dual heat exchanger 154, the coolant flowing in from the battery circuit 14 and the coolant flowing in from the heating circuit 15 perform heat exchange, that is, the heat of the coolant in the heating circuit 15 is used to heat the coolant in the battery circuit 14, so that the temperature of the coolant in the battery circuit 14 increases and the temperature of the coolant in the heating circuit 15 decreases.

[0083] The heated coolant flows out from the second pipe port G of the dual heat exchanger 142, flows into the five-way valve 21 from the first interface pipe A, and flows back to the fifth interface pipe E through the valve core, so that the battery is heated by the heated coolant. The cooled coolant flows out from the fourth pipe port I of the dual heat exchanger 142, and flows back to the first water tank 153.

[0084] In this way, the coolant in the battery heating circuit is heated by a water heater, and the coolant in the battery circuit and the heating circuit are exchanged with each other in a dual heat exchanger, thereby providing the required heat for the battery and increasing the battery temperature. In this way, when the battery temperature is too low, the battery can be heated to ensure that the battery can operate under safe temperature conditions.

[0085] In some embodiments, the control instruction may include a battery waste heat recovery instruction. The battery waste heat recovery instruction may be used to effectively recover the battery waste heat and use it for heating the passenger cabin, that is, to control the integrated thermal management system to implement a battery waste heat recovery mode in the thermal management mode.

[0086] The controller 11 is used to start the first water tank 153, the second water pump 22b, the third water pump 22c and the heater core 154 when a cabin heating request is received and the battery temperature is higher than a third preset temperature, and send a battery waste heat recovery instruction to the three-way valve 151 and the five-way valve 21.

[0087] The three-way valve 151 is used to connect the sixth interface pipe L and the seventh interface pipe M of the three-way valve 151, and connect the sixth interface pipe L and the eighth interface pipe N, so that the heating circuit 15 is in a warm air state.

[0088] The five-way valve 21 is used to control the driving mechanism to drive the valve core to rotate according to the battery waste heat recovery instruction, connect the first interface pipe A and the fifth interface pipe E, so that the battery circuit 14 is connected to form a battery waste heat recovery circuit corresponding to the battery waste heat recovery mode.

[0089] The cabin heating request involved in the embodiment of the present application can be generated by a user's operation on the control panel or automatically generated when the cabin temperature is at a lower temperature. The battery temperature being higher than the third preset temperature can indicate that the battery temperature is higher than the safe operating temperature and there is excess heat.

[0090] In one embodiment of the present application, after receiving a request for heating the passenger compartment, the controller 11 determines that the battery temperature exceeds the third preset temperature, that is, when the battery 141 is able to provide heat to the passenger compartment, it will start the first water tank 153, the second water pump 22b, the third water pump 22c and the heater core 154, and send a battery waste heat recovery instruction to the three-way valve 151 and the five-way valve 21.

[0091] After the three-way valve 151 receives the battery waste heat recovery instruction sent by the controller 11, the valve core position is controlled by rotating the driving mechanism to connect the sixth interface pipe L and the seventh interface pipe M, as well as the sixth interface pipe L and the eighth interface pipe N, so that the dual heat exchanger 152 is connected to the heater core 154, so that the coolant in the battery circuit and the coolant in the heating circuit can exchange heat, thereby increasing the temperature of the coolant in the heating circuit and providing a heat source for the heater core 154.

[0092] After receiving the battery heating instruction sent by the controller 11, the five-way valve 21 controls the valve core position by rotating the driving mechanism, so that the first interface tube A is connected with the fifth interface tube E, so that the input pipe port and the output pipe port of the battery circuit 14 are connected, forming a battery waste heat recovery circuit corresponding to the battery waste heat recovery mode.

[0093] In the battery waste heat recovery circuit, the coolant flowing out of the fifth interface pipe E of the five-way valve 21 is pressurized by the third water pump 22c and flows to the battery 141. Since the battery temperature is high and the coolant temperature is low, the coolant temperature flowing through the battery 141 increases and the battery temperature decreases. The coolant flowing out of the battery 141 flows into the dual heat exchanger 142 from the first pipe port F of the dual heat exchanger 142.

[0094] Furthermore, the coolant flowing out of the first water tank 153 flows to the water heater 152 after being pressurized by the second water pump 22b, and flows to the sixth interface pipe L of the three-way valve 151 through the water heater 152, and flows out of the eighth interface pipe N and the seventh interface pipe M through the valve core. The coolant flowing out of the eighth interface pipe N flows into the dual heat exchanger 154 from the third pipe port H of the dual heat exchanger 154.

[0095] In the dual heat exchanger, the coolant flowing into the battery circuit 14 exchanges heat with the coolant flowing into the heating circuit 15, that is, the heat of the coolant in the battery circuit 14 is used to heat the coolant in the heating circuit 15, so that the temperature of the coolant in the heating circuit 15 increases and the temperature of the coolant in the battery circuit 14 decreases.

[0096] The heated coolant flows out from the fourth pipe port I of the double heat exchanger 142, and flows back to the first water tank 153. The cooled coolant flows out from the second pipe port G of the double heat exchanger 142, and flows into the five-way valve 21 from the first interface pipe A, and flows back to the fifth interface pipe E through the valve core.

[0097] The coolant flowing out of the seventh interface pipe 24 flows through the heater core 154, and the heater core 154 generates hot air and is sent into the passenger compartment through the air duct. The coolant flowing out of the heater core 154 is cooled down and flows back to the first water tank 153. The heated coolant is mixed with the cooled coolant in the first water tank 153, and the above flow path is repeated, and the mixed coolant flows through the heater core.

[0098] In this way, the battery waste heat recovery circuit uses the excess heat of the battery to heat the coolant in the heating circuit. At the same time, the heated coolant transfers the heat to the air in the passenger compartment through the heater core 142, thereby achieving the purpose of recovering battery heat and heating the passenger compartment.

[0099] In some embodiments, the control instruction includes: a first motor waste heat recovery instruction. The first motor waste heat recovery instruction can be used to effectively recover the motor waste heat and use it for heating the passenger cabin, that is, to control the integrated thermal management system to implement the first motor waste heat recovery mode in the thermal management mode.

[0100] The controller 11 is used to start the three water pumps 22, the first water tank 153, the second water tank 131 and the heater core 154 when a cabin heating request is received and the motor temperature is higher than the fifth preset temperature and the battery temperature is not higher than the second preset temperature, and send a first motor waste heat recovery instruction to the three-way valve 151 and the five-way valve 21.

[0101] The three-way valve 151 is used to connect the sixth interface pipe L with the seventh interface pipe M, and connect the sixth interface pipe L with the eighth interface pipe N, so that the heating circuit 15 is in a warm air state.

[0102] The five-way valve 21 is used to control the driving mechanism to drive the valve core to rotate according to the first motor waste heat recovery instruction, connecting the first interface pipe A and the third interface pipe C, and the fourth interface pipe D and the fifth interface pipe E, so that the battery circuit 14 is connected with the first input pipe port and the output pipe port of the motor circuit 13 respectively, forming a first motor waste heat recovery circuit corresponding to the first motor waste heat recovery mode.

[0103] The fifth preset temperature involved in the embodiment of the present application is higher than the first preset temperature. The first preset temperature can be set according to the vehicle design, motor characteristics and safety standards, and is used to measure whether the motor is in a high temperature state. Optionally, the motor temperature is 60 degrees. The motor temperature higher than the fifth preset temperature indicates that the motor is in a high temperature state and there is excess heat. The battery temperature is not higher than the second preset temperature, indicating that the battery is not in a high temperature state.

[0104] In one embodiment of the present application, after receiving a request for cabin heating, the controller 11 determines that the motor temperature is higher than the fifth preset temperature and the battery temperature is not higher than the second preset temperature, that is, when there is excess heat in the motor, the first water tank 153, the second water tank 131, the three water pumps 22 and the heater core 154 are started, and a first motor waste heat recovery instruction is sent to the three-way valve 151 and the five-way valve 21.

[0105] After receiving the battery waste heat recovery instruction sent by the controller 11, the three-way valve 151 controls the valve core position by rotating the driving mechanism, connecting the sixth interface pipe L and the seventh interface pipe M, and connecting the sixth interface pipe L and the eighth interface pipe N, so that the dual heat exchanger 152 is connected with the warm air core 154, so that the heating circuit is in a warm air state.

[0106] After receiving the battery heating instruction sent by the controller 11, the five-way valve 21 controls the valve core position by rotating the driving mechanism, so that the first interface tube A is connected with the third interface tube C, and the fourth interface tube D is connected with the fifth interface tube E, so that the input pipe port of the battery circuit 14 is connected with the output pipe port of the motor circuit 13, and the output pipe port of the battery circuit 14 is connected with the first input pipe port of the motor circuit 13, forming a first motor waste heat recovery circuit corresponding to the first motor waste heat recovery mode.

[0107] In the first motor waste heat recovery loop, the coolant flows from the third interface pipe C of the five-way valve 21 into the first input pipe port of the motor circuit 13, and flows into the second water tank 131 through the first pipeline. The coolant flowing out of the second water tank 131 is pressurized by the first water pump 22a and flows to the motor 133. Since the temperature of the coolant flowing through the motor 133 is lower than the motor temperature, the coolant flowing through the motor 133 is heated up and the motor is cooled down. The heated coolant flows into the fourth interface pipe D of the five-way valve 21, and flows from the five-interface pipe E to the third water pump 22c. After being pressurized by the third water pump 22c, it flows through the battery 141 and flows into the dual heat exchanger 142 from the first pipe port F of the dual heat exchanger 142.

[0108] Furthermore, the coolant flowing out of the first water tank 153 flows to the water heater 152 after being pressurized by the second water pump 22b, and flows to the sixth interface pipe L of the three-way valve 151 through the water heater 152, and flows out of the eighth interface pipe N and the seventh interface pipe M through the valve core. The coolant flowing out of the eighth interface pipe N flows into the dual heat exchanger 154 from the third pipe port H of the dual heat exchanger 154.

[0109] In the dual heat exchanger, the coolant flowing into the battery circuit 14 exchanges heat with the coolant flowing into the heating circuit 15, that is, the heat of the coolant in the battery circuit 14 is used to heat the coolant in the heating circuit 15, so that the temperature of the coolant in the heating circuit 15 increases and the temperature of the coolant in the battery circuit 14 decreases.

[0110] The heated coolant flows out from the fourth pipe port I of the double heat exchanger 142, and flows back to the first water tank 153. The cooled coolant flows out from the second pipe port G of the double heat exchanger 142, and flows into the five-way valve 21 from the first interface pipe A, and flows back to the third interface pipe C through the valve core.

[0111] The coolant flowing out of the seventh interface pipe 24 flows through the heater core 154, and the heater core 154 generates hot air and is sent into the passenger compartment through the air duct. The coolant flowing out of the heater core 154 is cooled down and flows back to the first water tank 153. The heated coolant is mixed with the cooled coolant in the first water tank 153, and the above flow path is repeated, and the mixed coolant flows through the heater core.

[0112] In this way, the coolant takes away the heat from the motor and flows from the motor circuit to the battery circuit, and provides heat to the heater core in the heating circuit 15 through the dual heat exchanger, thereby achieving the purpose of recovering the heat from the motor and heating the passenger compartment.

[0113] In some embodiments, the control instruction includes a second motor waste heat recovery instruction. The second motor waste heat recovery instruction may be an instruction for heating the battery using the motor waste heat, that is, an instruction for controlling the integrated thermal management system to implement a second motor waste heat recovery mode in the thermal management mode.

[0114] The controller 11 is used to start the first water pump 22a, the third water pump 22c and the second water tank 131, and send a second motor waste heat recovery instruction to the five-way valve 21 when the motor temperature is higher than the fifth preset temperature and the battery temperature is lower than the fourth preset temperature.

[0115] The five-way valve 21 is used to control the driving mechanism to drive the valve core to rotate according to the second motor waste heat recovery instruction, connecting the first interface pipe A and the third interface pipe C, and the fourth interface pipe D and the fifth interface pipe E, so that the battery circuit 14 is connected with the first input pipe port and the output pipe port of the motor circuit 14 respectively, forming a second motor waste heat recovery circuit corresponding to the second motor waste heat recovery mode.

[0116] The battery temperature involved in the embodiment of the present application being lower than the fourth preset temperature may indicate that the battery is in a low temperature state. When the controller 11 determines that the motor temperature is higher than the fifth 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 second water tank 131, the first water pump 22a, and the third water pump 22c are started, and a second motor waste heat recovery instruction is sent to the five-way valve 21.

[0117] After the five-way valve 21 receives the second motor waste heat recovery instruction sent by the controller 11, the valve core position is controlled by rotating the driving mechanism to connect the first interface pipe A with the third interface pipe C, and the fourth interface pipe D with the fifth interface pipe E, so that the input pipe port of the battery circuit 14 is connected to the output pipe port of the motor circuit 13, and the output pipe port of the battery circuit 14 is connected to the first input pipe port of the motor circuit 13, and the motor waste heat is used to heat the coolant flowing into the battery circuit, so as to form a second motor waste heat recovery circuit corresponding to the second motor waste heat recovery mode.

[0118] In the second motor waste heat recovery loop, the coolant flows from the third interface pipe C of the five-way valve 21 into the first input pipe port of the motor circuit 13, and flows into the second water tank 131 through the first pipeline. The coolant flowing out of the second water tank 131 is pressurized by the first water pump 22a and flows to the motor 133. Since the temperature of the coolant flowing through the motor 133 is lower than the motor temperature, the coolant flowing through the motor 133 is heated up and the motor is cooled down. The heated coolant flows into the fourth interface pipe D of the five-way valve 21, and flows from the five-port pipe E to the third water pump 22c, and flows to the battery 141 after being pressurized by the third water pump 22c. Since the temperature of the coolant is higher than the battery temperature, the coolant heats the battery and cools down. The cooled coolant flows into the double heat exchanger 142 from the first pipe port F of the double heat exchanger 142, and flows from the second pipe port G of the double heat exchanger 142 to the first interface pipe A, and flows back to the third interface pipe C through the valve core.

[0119] 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 passenger compartment.

[0120] In some embodiments, the control instructions include: a third motor waste heat recovery instruction. The first motor waste heat recovery instruction can be used to effectively recover the motor waste heat and heat the battery and the passenger compartment, that is, to control the integrated thermal management system to implement the third motor waste heat recovery mode in the thermal management mode.

[0121] The controller 11 is used to start the three water pumps 22, the first water tank 153, the second water tank 11, the heater core 154 and the water heater 152, and send a third motor waste heat recovery instruction to the three-way valve 151 and the five-way valve 21 when a passenger cabin heating request is obtained and the motor temperature is higher than the fifth preset temperature and the battery temperature is lower than the fourth preset temperature.

[0122] The three-way valve 151 is used to connect the sixth interface pipe L of the three-way valve 151 with the seventh interface pipe M, and the sixth interface pipe L with the eighth interface pipe N, so that the coolant in the heating circuit 15 and the battery circuit 14 can exchange heat in the dual heat exchanger 142, so that the heating circuit 15 is in a heating and warm air state.

[0123] The five-way valve 21 is used to control the driving mechanism to drive the valve core to rotate according to the third motor waste heat recovery instruction, connecting the first interface pipe A and the third interface pipe C, and the fourth interface pipe D and the fifth interface pipe E, so that the battery circuit 14 is connected with the first input pipe port and the output pipe port, forming a third motor waste heat recovery circuit corresponding to the third motor waste heat recovery mode.

[0124] In one embodiment of the present application, after receiving a request to heat the passenger cabin, the controller 11 determines that the battery temperature is lower than the fourth preset temperature, that is, the battery 141 is in a low temperature state, and the waste heat of the motor is insufficient to provide heat for both the passenger cabin and the battery. Then, the three water pumps 22, the first water tank 153, the second water tank 11, the heater core 154 and the water heater 152 are started, and a third motor waste heat recovery instruction is sent to the three-way valve 151 and the five-way valve 21.

[0125] After receiving the battery waste heat recovery instruction sent by the controller 11, the three-way valve 151 controls the valve core position by rotating the driving mechanism, so that the sixth interface pipe L and the seventh interface pipe M, as well as the sixth interface pipe L and the eighth interface pipe N are connected, so that the water heater 152 is connected with the dual heat exchanger 152 and the warm air core 154 respectively, so that the heating circuit 15 is in a heating and warm air state.

[0126] After the five-way valve 21 receives the third motor waste heat recovery instruction sent by the controller 11, the valve core position is controlled by rotating the driving mechanism to connect the first interface pipe A with the third interface pipe C, and the fourth interface pipe D with the fifth interface pipe E, so that the input pipe port of the battery circuit 14 is connected to the output pipe port of the motor circuit 13, and the output pipe port of the battery circuit 14 is connected to the first input pipe port of the motor circuit 13, forming a third motor waste heat recovery circuit corresponding to the third motor waste heat recovery mode.

[0127] In the third motor waste heat recovery circuit, the coolant flows from the third interface pipe C of the five-way valve 21 into the first input pipe port of the motor circuit 13, and flows into the second water tank 131 through the first pipeline. The coolant flowing out of the second water tank 131 is pressurized by the first water pump 22a and flows to the motor 133. Since the temperature of the coolant flowing through the motor 133 is lower than the motor temperature, the coolant flowing through the motor 133 is heated up and the motor is cooled down. The heated coolant flows into the fourth interface pipe D of the five-way valve 21, and flows from the five-port pipe E to the third water pump 22c. After being pressurized by the third water pump 22c, it flows through the battery 141. Since the temperature of the coolant is higher than the battery temperature, the coolant heats the battery, the coolant temperature decreases, and the battery temperature increases. The cooled coolant flows into the dual heat exchanger 142 from the first pipe port F of the dual heat exchanger 142.

[0128] Furthermore, the coolant flowing out of the first water tank 153 flows to the water heater 152 after being pressurized by the second water pump 22b. After being heated by the water heater 152, the coolant flows to the sixth interface pipe L of the three-way valve 151, and flows out of the eighth interface pipe N and the seventh interface pipe M through the valve core. The coolant flowing out of the eighth interface pipe N flows into the dual heat exchanger 154 from the third pipe port H of the dual heat exchanger 154.

[0129] In the dual heat exchanger, the coolant flowing into the battery circuit 14 exchanges heat with the coolant flowing into the heating circuit 15, that is, the heat of the coolant in the heating circuit 15 is used to heat the coolant in the battery circuit 14, so that the temperature of the coolant in the battery circuit 14 increases and the temperature of the coolant in the heating circuit 15 decreases.

[0130] The cooled coolant flows out from the fourth pipe port I of the double heat exchanger 142, and flows back to the first water tank 153. The heated coolant flows out from the second pipe port G of the double heat exchanger 142, and flows into the five-way valve 21 from the first interface pipe A, and flows back to the third interface pipe C through the valve core.

[0131] The cooling liquid flowing out of the seventh interface pipe 54 flows through the heater core 154, and the heater core 154 generates hot air and is sent into the passenger compartment through the air duct. The cooling liquid flowing out of the heater core 154 is cooled and flows back to the first water tank 153.

[0132] 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. The coolant in the heating circuit is heated by a water heater to provide heat for the heater core, and the coolant temperature in the battery circuit is increased through a dual heat exchanger, thereby achieving the purpose of recovering the heat from the motor and heating the cabin and battery together.

[0133] In some embodiments, Figure 4As shown, the air conditioning circuit 16 may include a first expansion valve 161 , a second expansion valve 162 , a third expansion valve 163 , an evaporator 164 , a condenser 165 , a built-in condenser 167 , a compressor 168 , a stop valve 169 and a gas-liquid separator 1610 .

[0134] Among them, the first expansion valve 161, the second expansion valve 162 and the third expansion valve 163 can be used to control the flow rate and pressure of the refrigerant. The evaporator 164 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 168 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 165 and the built-in condenser 167 are both used to convert the high-temperature and high-pressure refrigerant vapor into a low-temperature and high-pressure liquid refrigerant. The gas-liquid separator 1610 is used to store the refrigerant and replenish the refrigerant to the circuit. The gas-liquid separator 1610 also has the function of vapor-liquid separation, and can transport the refrigerant vapor to the compressor 168 to ensure the stable operation of the circuit. The stop valve 169 is used to control the flow rate of the refrigerant.

[0135] like Figure 4 As shown, one pipe port of the compressor 168 is connected to one pipe port of the built-in condenser 167, and another pipe port of the built-in condenser 167 is connected to one pipe port of the first expansion valve 161. Another pipe port of the first expansion valve 161 is connected to one pipe port of the condenser 165, and another pipe port of the condenser 165 is respectively connected to one pipe port of the stop valve 169, one pipe port of the second expansion valve 162, and one pipe port of the third expansion valve 163. Another pipe port of the second expansion valve 162 is connected to the sixth pipe port K of the double heat exchanger 142. Another pipe port of the stop valve 169 is respectively connected to the fifth pipe port J of the double heat exchanger, one pipe port of the evaporator 164, and one pipe port of the gas-liquid separator 1610. Another pipe port of the gas-liquid separator 1610 is connected to another pipe port of the compressor 168. Another pipe port of the third expansion valve 163 is connected to another pipe port of the evaporator 164.

[0136] In some embodiments, the control instructions include: battery air conditioning cooling instructions. The battery cooling instructions can be instructions for realizing that when the battery temperature is high and the radiator is insufficient to cool down, additional devices are needed to cool down, that is, instructions for controlling the integrated thermal management system to realize the battery air conditioning cooling mode in the thermal management mode.

[0137] The controller 11 is used to control the air conditioning circuit 16 to enter the cooling mode when the battery temperature is higher than the third preset temperature and the motor temperature is higher than the first preset temperature, and send the battery air conditioning cooling instruction to the five-way valve 21. The controller 11 controls the air conditioning circuit 16 to enter the cooling mode, which may include starting the compressor 168, the built-in condenser 167, the condenser 165 and the gas-liquid separator 1610, opening the first expansion valve 161 and the second expansion valve 162, and closing the third expansion valve 163 and the stop valve 169, so that the refrigerant in the air conditioning circuit 16 and the coolant in the battery circuit 14 perform heat exchange in the dual heat exchanger to reduce the temperature of the coolant.

[0138] The five-way valve 21 is used to control the driving mechanism to drive the valve core to rotate according to the battery air conditioning cooling instruction, connect the first interface pipe A and the fifth interface pipe E to connect the battery circuit 14, and form a battery air conditioning cooling circuit corresponding to the battery air conditioning cooling mode.

[0139] In one embodiment of the present application, a battery temperature higher than the third preset temperature indicates that the battery is in a high temperature state. A motor temperature higher than the first preset temperature indicates that the motor has a heat dissipation requirement. A battery temperature higher than the third preset temperature and a motor temperature higher than the first preset temperature may indicate that the battery needs to be cooled but cannot be cooled using a radiator.

[0140] After the controller 11 determines that the battery temperature is higher than the second preset temperature and the motor temperature is higher than the first preset temperature, the controller 11 starts the compressor 168, the built-in condenser 167, the condenser 165 and the gas-liquid separator 1610, opens the first expansion valve 161 and the second expansion valve 162, and closes the third expansion valve 163 and the stop valve 169, so that the refrigerant in the air conditioning circuit 16 and the coolant in the battery circuit 14 can exchange heat in the dual heat exchanger to reduce the temperature of the coolant. In addition, the controller 11 also starts the third water pump 22c.

[0141] The controller 11 also sends a battery air conditioning cooling instruction to the five-way valve 21. After receiving the motor cooling instruction sent by the controller 11, the five-way valve 21 controls the valve core position by rotating the driving mechanism to connect the first interface pipe A with the fifth interface pipe E, so that the input pipe port and the output pipe port of the battery circuit 14 are connected, forming a battery air conditioning cooling circuit corresponding to the battery air conditioning cooling mode.

[0142] In the battery air conditioning cooling circuit, the gas-liquid separator 1610 is started to deliver refrigerant vapor to the compressor 168. The compressor 168 and the built-in condenser 167 are started to convert the refrigerant vapor into a low-temperature liquid refrigerant. The liquid refrigerant flows through the first expansion valve 161 through the pipeline. The liquid refrigerant flowing out of the first expansion valve 161 is cooled again through the condenser 165. Since the third expansion valve 163 and the stop valve 169 are both closed, the cooled liquid refrigerant flows to the second expansion valve 162 through the pipeline. The liquid refrigerant flowing out of the second expansion valve 162 flows into the dual heat exchanger 142 from the sixth pipe port K of the dual heat exchanger 142.

[0143] At the same time, the coolant flowing out of the fifth interface pipe E of the five-way valve 21 is pressurized by the third water pump 22c and flows to the battery 141. Since the battery temperature is high and the coolant temperature is low, the coolant temperature flowing through the battery 141 increases and the battery temperature decreases. The coolant flowing out of the battery 141 flows into the dual heat exchanger 142 from the first pipe port F of the dual heat exchanger 142.

[0144] In the dual heat exchanger 142, the refrigerant of the air-conditioning circuit 16 exchanges heat with the coolant of the battery circuit 14, that is, the low-temperature refrigerant of the air-conditioning circuit 16 is used to cool the coolant in the battery circuit 14, so that the temperature of the refrigerant in the air-conditioning circuit 16 increases and the temperature of the coolant in the battery circuit 14 decreases.

[0145] The heated refrigerant flows out from the fifth pipe port J of the double heat exchanger 142 and flows back to the gas-liquid separator 1610. The cooled coolant flows out from the second pipe port G of the double heat exchanger 142 and flows to the first interface pipe A of the five-way valve 21, and flows back to the fifth interface pipe E through the valve core.

[0146] In this way, the heat generated by the battery is transferred to the refrigerant in the air-conditioning circuit 16 through the dual heat exchanger 142, and is carried away by the refrigerant and discharged into the external environment, thereby cooling the battery.

[0147] like Figure 4 As shown, the thermal management system further includes a fan FAN. The radiator 175, the condenser 165 and the fan FAN are integrated together. The warm air core 142, the evaporator 164 and the built-in condenser 167 are integrated together. In this way, the system volume can be reduced.

[0148] 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, a third temperature sensor T3, a fourth temperature sensor T4, and a fifth temperature sensor T5. Figure 4As shown, the first temperature sensor T1 is arranged at the outlet of the built-in condenser. The second temperature sensor T2 and the third temperature sensor T3 are arranged at the inlet and outlet of the battery 141 to measure the inlet and outlet temperatures of the battery 141. The fourth temperature sensor T4 and the fifth temperature sensor T5 are arranged at the inlet and outlet of the motor 133 to measure the inlet and outlet temperatures of the motor 133.

[0149] 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 can 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 flowing out of the dual heat exchanger 142.

[0150] In some embodiments, the thermal management mode is determined by the integrated thermal management system based on whether there is a cabin heating request, the motor temperature, and the battery temperature.

[0151] 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.

[0152] 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.

[0153] It should be understood that the specific features, operations and details described hereinabove with respect to the method of the present application may also be similarly applied to the device and system of the present application, or vice versa. In addition, each step of the method of the present application described above may be performed by a corresponding component or unit of the device or system of the present application.

[0154] 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.

[0155] 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.

[0156] 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 five-way valve integrated module, a motor circuit, a battery circuit, a heating circuit and a controller; wherein the five-way valve integrated module integrates: a five-way valve 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 five-way valve integrated module and the motor circuit and the battery circuit; The three water pumps are respectively a first water pump, a second water pump and a third water pump, and the three water pumps are respectively connected in series with a battery circuit, a heating circuit and a motor circuit; The five-way valve comprises: five interface pipes, a valve core and a driving mechanism; the five interface pipes are respectively connected to three pipe openings of the motor circuit and two pipe openings of the battery circuit; The five-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 five 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 five interface tubes are respectively a first interface tube, a second interface tube, a third interface tube, a fourth interface tube and a fifth interface tube; the five interface tubes are respectively connected to the three tube ports of the motor circuit and the two tube ports of the battery circuit, including: The first interface pipe is connected to the output pipe port of the battery circuit; The second interface pipe is connected to the second input pipe port of the motor circuit; The third interface pipe is connected to the first input pipe port of the motor circuit; The fourth interface pipe is connected to the output pipe port of the motor circuit; The fifth interface pipe is connected to the input pipe port of the battery circuit.

3. The system according to claim 2, characterized in that The motor circuit includes: a second water tank, a radiator and a motor; The first input pipe opening of the second water tank is the first input pipe opening of the motor circuit, which is connected to the third interface pipe through a first pipeline, the second input pipe opening of the second water tank is connected to the output pipe opening of the radiator through a second pipeline, and the input pipe opening of the radiator is the second input pipe opening of the motor circuit, which is connected to the second interface pipe; The output pipe port of the second water tank is connected to the input pipe port of the first water pump, the output pipe port of the first water pump is connected to one pipe port of the motor, and the other pipe port of the motor is the output pipe port of the motor circuit, which is connected to the fourth interface pipe.

4. The system according to claim 3, characterized in that The control instructions include: motor non-cooling instructions; The controller is used to start the first water pump and the second water tank when the motor temperature is not higher than the first preset temperature, and send a motor non-cooling instruction to the five-way valve; The five-way valve is used to control the drive mechanism to drive the valve core to rotate according to the motor non-cooling instruction, connect the third interface pipe with the fourth interface pipe, so that the first input pipe port and the output pipe port of the motor circuit are connected, forming a motor non-cooling circuit corresponding to the motor non-cooling mode.

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

6. The system according to claim 3, characterized in that The battery circuit comprises: a battery and a dual heat exchanger; The input pipe outlet of the third water pump is connected to the fifth interface pipe, the output pipe outlet of the third water pump is connected to one end of the battery, the other end of the battery is connected to the first pipe outlet of the dual heat exchanger, and the second pipe outlet of the dual heat exchanger is the output pipe outlet of the battery circuit, which is connected to the first interface pipe.

7. The system according to claim 6, characterized in that The control instructions include: battery non-cooling instructions; The controller is used to start the third water pump and send a battery non-cooling instruction to the five-way valve when the battery temperature is not higher than the second preset temperature; The five-way valve is used to control the driving mechanism to drive the valve core to rotate according to the battery non-cooling instruction, connect the first interface pipe and the fifth interface pipe, so that the battery circuit is connected to form a battery non-cooling circuit corresponding to the battery non-cooling mode.

8. The system according to claim 6, characterized in that The control instructions include battery heat dissipation cooling instructions; The controller is used to start the first water pump, the second water tank, the third water pump and the radiator, and send a battery heat dissipation cooling instruction to the five-way valve when the battery temperature is higher than the second preset temperature and not higher than the third preset temperature; The five-way valve is used to control the drive mechanism to drive the valve core to rotate according to the battery heat dissipation and cooling instruction, connect the first interface pipe with the second interface pipe, and connect the fourth interface pipe with the fifth interface pipe, so that the second input pipe port and the output pipe port of the battery circuit and the motor circuit are connected, forming a battery heat dissipation and cooling circuit corresponding to the battery heat dissipation and cooling mode.

9. The system according to claim 3, characterized in that The heating circuit includes: a three-way valve, i.e. a water heater, a first water tank and a warm air core; The three-way valve comprises: a sixth interface pipe, a seventh interface pipe and an eighth interface pipe; The sixth interface pipe is connected to the output pipe port of the water heater, the input pipe port of the water heater is connected to the output pipe port of the second water pump, the input pipe port of the second water pump is connected to the output pipe port of the first water tank, and the input pipe port of the first water tank is connected to the fourth pipe port of the double heat exchanger; The seventh pipe port is connected to the output pipe port of the heater core, and the input pipe port of the heater core is connected to the fourth pipe port of the double heat exchanger; The eighth interface pipe is connected to the third pipe opening of the double heat exchanger.

10. The system according to claim 9, characterized in that The control instructions include: battery heating instructions; The controller is used to start the water heater, the first water tank, the second water pump and the third water pump when the battery temperature is lower than a fourth preset temperature, and send the battery heating instruction to the three-way valve and the five-way valve; The three-way valve is used to control the sixth interface pipe of the three-way valve to communicate with the eighth interface pipe according to the battery heating instruction, so that the coolant in the battery circuit and the heating circuit can exchange heat in the dual heat exchanger; The five-way valve is used to control the driving mechanism to drive the valve core to rotate according to the heating instruction, connect the first interface pipe and the fifth interface pipe, so that the battery circuit is connected to form a battery heating circuit corresponding to the battery heating mode.

11. The system according to claim 9, characterized in that The control instructions include: battery waste heat recovery instructions; The controller is used to start the first water tank, the second water pump, the third water pump and the heater core when a passenger cabin heating request is obtained and the battery temperature is higher than a third preset temperature, and send the battery waste heat recovery instruction to the three-way valve and the five-way valve; The three-way valve is used to connect the sixth interface pipe and the seventh interface pipe of the three-way valve, and to connect the sixth interface pipe and the eighth interface pipe, so that the heating circuit is in a warm air state; The five-way valve is used to control the driving mechanism to drive the valve core to rotate according to the battery waste heat recovery instruction, connect the first interface pipe and the fifth interface pipe, so that the battery circuit is connected to form a battery waste heat recovery circuit corresponding to the battery waste heat recovery mode.

12. The system according to claim 9, characterized in that The control instructions include: a first motor waste heat recovery instruction; The controller is used for starting the three water pumps, the first water tank, the second water tank and the heater core, and sending a waste heat recovery instruction of the first motor to the three-way valve and the five-way valve when a passenger cabin heating request is obtained and the motor temperature is higher than a fifth preset temperature and the battery temperature is not higher than a second preset temperature; The three-way valve is used to connect the sixth interface pipe with the seventh interface pipe, and the sixth interface pipe with the eighth interface pipe, so that the heating circuit is in a warm air state; The five-way valve is used to control the driving mechanism to drive the valve core to rotate according to the first motor waste heat recovery instruction, connecting the first interface pipe with the third interface pipe, and the fourth interface pipe with the fifth interface pipe, so that the battery circuit is connected with the first input pipe port and the output pipe port of the motor circuit respectively, forming a first motor waste heat recovery circuit corresponding to the first motor waste heat recovery mode.

13. The system according to claim 9, characterized in that The control instructions include: a second motor waste heat recovery instruction; The controller is used to start the first water pump, the third water pump and the second water tank, and send a second motor waste heat recovery instruction to the five-way valve when the motor temperature is higher than a fifth preset temperature and the battery temperature is lower than a fourth preset temperature; The five-way valve is used to control the drive mechanism to drive the valve core to rotate according to the second motor waste heat recovery instruction, connecting the first interface pipe with the third interface pipe, and the fourth interface pipe with the fifth interface pipe, so that the battery circuit is connected with the first input pipe port and the output pipe port of the motor circuit respectively, forming a second motor waste heat recovery circuit corresponding to the second motor waste heat recovery mode.

14. The system according to claim 9, characterized in that The control instructions include: a third motor waste heat recovery instruction; The controller is used for starting the three water pumps, the first water tank, the second water tank, the heater core and the water heater, and sending a waste heat recovery instruction of the third motor to the three-way valve and the five-way valve when a passenger cabin heating request is obtained and the motor temperature is higher than a fifth preset temperature and the battery temperature is lower than a fourth preset temperature; The three-way valve is used to connect the sixth interface pipe of the three-way valve with the seventh interface pipe, and the sixth interface pipe with the eighth interface pipe, so that the coolant in the heating circuit and the battery circuit can exchange heat in the double heat exchanger, so that the heating circuit is in a heating and warm air state; The five-way valve is used to control the drive mechanism to drive the valve core to rotate according to the third motor waste heat recovery instruction, connecting the first interface pipe with the third interface pipe, and the fourth interface pipe with the fifth interface pipe, so that the battery circuit is connected with the first input pipe port and the output pipe port, forming a third motor waste heat recovery circuit corresponding to the third motor waste heat recovery mode.

15. The system according to claim 9, characterized in that Also included is an air conditioning circuit, the air conditioning circuit comprising: a first expansion valve, a second expansion valve, a third expansion valve, an evaporator, a condenser, a built-in condenser, a compressor, a stop valve and a gas-liquid separator; One pipe port of the compressor is connected to one pipe port of the built-in condenser, and another pipe port of the built-in condenser is connected to one pipe port of the first expansion valve; Another pipe opening of the first expansion valve is connected to one pipe opening of the condenser, and another pipe opening of the condenser is respectively connected to one pipe opening of the stop valve, one pipe opening of the second expansion valve, and one pipe opening of the third expansion valve; Another pipe port of the second expansion valve is connected to the sixth pipe port of the double heat exchanger; Another pipe opening of the stop valve is respectively connected to the fifth pipe opening of the double heat exchanger, one pipe opening of the evaporator and one pipe opening of the gas-liquid separator; Another pipe port of the gas-liquid separator is connected to another pipe port of the compressor; Another pipe port of the third expansion valve is connected to another pipe port of the evaporator.

16. The system according to claim 15, characterized in that The control instructions include: battery air conditioning cooling instructions; The controller is used to control the air conditioning circuit to enter a cooling mode and send the battery air conditioning cooling instruction to the five-way valve when the battery temperature is higher than a third preset temperature and the motor temperature is higher than a first preset temperature; The controlling the air conditioning circuit to enter the cooling mode includes starting the compressor, the built-in condenser, the condenser and the gas-liquid separator, opening the first expansion valve and the second expansion valve, and closing the third expansion valve and the stop valve, so that the refrigerant in the air conditioning circuit and the coolant in the battery circuit perform heat exchange in the dual heat exchanger to reduce the temperature of the coolant; The five-way valve is used to control the driving mechanism to drive the valve core to rotate according to the battery air conditioning cooling instruction, connect the first interface pipe with the fifth interface pipe, so that the battery circuit is connected to form a battery air conditioning cooling circuit corresponding to the battery air conditioning cooling mode.

17. 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 16.

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