Integrated thermal management system, control method, and vehicle

Abstract

This application provides an integrated thermal management system, control method, and vehicle. The system includes a five-way valve integrated module, a motor circuit, a battery circuit, a heating circuit, and a controller. The five-way valve integrated module integrates a five-way valve and three water pumps. The controller generates control commands based on a thermal management mode, which control the connection status between the five-way valve integrated module and the motor circuit and battery circuit. The three water pumps are connected in series with the battery circuit, heating circuit, and motor circuit, respectively. The five-way valve, according to the control commands, controls the drive mechanism to rotate the valve core, connecting at least two of the five interface pipes to the target interface pipes, thereby connecting the ports of the target circuits connected to the at least two target interface pipes to form a thermal management circuit corresponding to the thermal management mode. This application improves component integration and reduces the number of connecting pipes and control motors.

Description

Technical Field

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

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

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

[0004] In a first aspect, the application 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; the controller is used to generate control commands according to the thermal management mode, the control commands being 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 a first water pump, a second water pump, and a third water pump, which are connected in series with the battery circuit, the heating circuit, and the motor circuit respectively; the five-way valve includes: five interface pipes, a valve core, and a drive mechanism; the five interface pipes are respectively connected to three ports of the motor circuit and two ports of the battery circuit; the five-way valve is used to control the drive mechanism to drive the valve core to rotate according to the control commands, connecting at least two target interface pipes among the five interface pipes, so that the ports of the target circuits connected to at least two target interface pipes are connected, forming a thermal management circuit corresponding to the thermal management mode.

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

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

[0007] In summary, the integrated thermal management system, control method, and vehicle provided in this application have at least the following beneficial effects: by connecting a highly integrated five-way valve module, consisting of multiple water pumps and a five-way valve, to each circuit, precise control of the connection status of each circuit can be achieved to meet different thermal management needs. Furthermore, it simplifies the system structure, reduces the number of connecting pipes, shrinks the overall system volume, improves the energy-to-energy conversion ratio, reduces energy loss, and reduces the number of required control signals. Thus, it not only improves the efficiency and reliability of the thermal management system but also reduces the complexity and cost of the system. Attached Figure Description

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

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

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

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

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

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

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

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

[0016] One embodiment of this application provides an integrated thermal management system. Figure 1 This illustration shows a structural schematic diagram of an integrated thermal management system provided in an embodiment of this application, such as... Figure 1 As shown, the integrated thermal management system 10 may include: a controller 11, a 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 connections 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 also to the battery circuit 14.

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

[0019] In addition, control commands can also be used to indicate the operating status of each circuit. The operating status of motor circuit 13 may include, but is not limited to, motor heat dissipation status.

[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 can exchange heat with the battery circuit 14, thereby reducing the temperature of the coolant in the battery circuit 14.

[0021] Figure 3 This illustration shows a structural diagram of a five-way valve integrated module provided in an embodiment of this application, as shown below. 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 designated as first water pump 22a, second water pump 22b, and third water pump 22c. These 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 drive mechanism, a valve core, and five interface pipes. Specifically, the five interface pipes are disposed on the housing. The valve core is disposed inside the housing and is used to divide the housing cavity into multiple small cavities, each small cavity communicating with two interface pipes. The drive mechanism is used to drive the valve core to rotate, thereby changing the interface pipe communicating with each second cavity.

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

[0025] The five-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the control command, and connect at least two of the five interface pipes to the target interface pipes, so as to connect the pipe ports of the target circuit connected to the at least two target interface pipes, 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 this 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 This illustration shows a schematic diagram of another integrated thermal management system provided in an embodiment of this application. 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: the first water pump 22a connected in series with the motor circuit 13, the second water pump 22b connected in series with the heating circuit 15 and the third water pump 22c connected in series with the battery circuit 14.

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

[0029] The five interface tubes are connected to three ports of the motor circuit and two ports of the battery circuit, respectively: Interface tube A is connected to the output port of battery circuit 14; Interface tube B is connected to the second input port of motor circuit 13; Interface tube C is connected to the first input port of motor circuit 13; Interface tube D is connected to the output port of motor circuit 13; and Interface tube E is connected to the input port of 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 dissipates heat from the coolant in the circuit, lowering its temperature. The second water tank 131 can be used to replenish coolant to the motor circuit 133.

[0031] The first input port of the second water tank 131 is the first input port of the motor circuit 13, which is connected to the third interface pipe C through the first pipeline. The second input port of the second water tank 131 is connected to the output port of the radiator 132 through the second pipeline. The input port of the radiator 132 is the second input port 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, and the other port of the motor 133 is the output port of the motor circuit 13, which is connected to the fourth interface pipe D.

[0033] There is a shared pipeline between the first pipeline and the second pipeline. That is, the coolant flowing into the second water tank 131 from the first inlet will flow into the second water tank 131 through the shared pipeline, and the coolant flowing into the second water tank 131 from the second inlet will also flow into the second water tank 131 through the shared pipeline.

[0034] In some embodiments, the control commands may include a motor non-cooling command. The motor non-cooling command can be a command indicating that the battery temperature is within the normal temperature range and no additional cooling is required; that is, a command to control the integrated thermal management system to implement a motor non-cooling mode in the thermal management mode.

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

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

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

[0038] In one embodiment of this application, the controller 11 determines the difference between the motor temperature and a first preset temperature. When the motor temperature is not higher than the first preset temperature, the controller 11 sends a non-cooling command to the five-way valve 21. Simultaneously, the controller 11 also starts the first water pump 22a and the second water tank 131.

[0039] After receiving the motor non-cooling command sent by the controller 11, the five-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the third interface pipe C and the fourth interface pipe D are connected, and the first input port and the output port of the motor circuit 13 are connected, that is, the first pipeline of the motor circuit 13 is connected to the motor, forming a motor non-cooling circuit corresponding to the motor non-cooling mode.

[0040] In the motor non-cooling circuit, coolant flows from the third port C of the five-way valve 21 into the first input port of the motor circuit 13, and then flows through the first pipeline into the second water tank 131. 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 port D of the five-way valve 21, and then flows back to the third port C through the valve core of the five-way valve. In this way, the motor non-cooling circuit allows the heat generated by the motor during operation to be dissipated into the environment through natural heat dissipation without the need for an additional cooling device.

[0041] In some embodiments, the control commands may include motor cooling commands. Motor cooling commands can be commands indicating that the motor temperature exceeds a safe temperature and requires additional cooling; that is, commands controlling the integrated thermal management system to implement the motor cooling mode in the 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 when the motor temperature is higher than the first preset temperature, and to send a motor cooling command to the five-way valve 21.

[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 command, and connect the second interface pipe B and the fourth interface pipe D so that the second input port and the output 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 this application, when the motor temperature is higher than a first preset temperature, it indicates that the motor is in a high-temperature state and other equipment is needed to assist in cooling.

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

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

[0047] In the motor cooling circuit, coolant flows from the second port B of the five-way valve 21 into the second input port of the motor circuit 13, and then flows along the pipeline into the radiator 132. Since the radiator 132 has a heat dissipation function, the coolant flowing out of the radiator 132 is cooled. The cooled coolant flows through the second pipeline into the second water tank 131, and the coolant flowing out of the second water tank 131 is pressurized by the first water pump 22a and flows towards the motor 133. The coolant flowing through the motor 133 can carry away the heat of the motor 133, thus cooling the motor. Simultaneously, the coolant flowing out of the motor 133 flows to the fourth port D of the five-way valve 21, and then flows back to the second port B through the valve core of the five-way valve. In this way, the coolant circulates in the motor cooling circuit, thereby utilizing the coolant to carry away the heat of the motor and utilizing the radiator to cool the coolant, achieving the purpose of motor cooling.

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

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

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

[0051] In some embodiments, the control command may include a battery non-cooling command. The battery non-cooling command can be a command indicating that the battery temperature is within the normal operating temperature range and no additional cooling is required; that is, a command controlling the integrated thermal management system to implement the battery non-cooling mode in the thermal management mode.

[0052] The controller 11 is used to start the third water pump 22c and send a battery non-cooling command 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 drive mechanism to drive the valve core to rotate according to the battery non-cooling command, and connect the first interface pipe A and the fifth interface pipe E so that the battery circuit 14 is connected to form a battery non-cooling circuit corresponding to the battery non-cooling mode.

[0054] The battery temperature mentioned in this application embodiment can be the current temperature of the battery. The second preset temperature can be set according to vehicle design, battery characteristics, and safety standards, and is used to measure whether the battery is in a low temperature state. Optionally, the second preset temperature can be 35 degrees Celsius.

[0055] In one embodiment of this 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 command to the five-way valve 21.

[0056] After receiving the battery non-cooling command sent by the controller 11, the five-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the first interface pipe A and the fifth interface pipe E are connected, and the input port and output 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, coolant flows from the fifth port E to the third water pump 22c, and after being pressurized by the third water pump 22c, flows to the battery 141. Coolant flowing out of the battery 141 flows through a pipeline into the first port F of the dual heat exchanger 142, and then flows out from its second port G. Coolant exiting the heat exchanger 142 flows to the first port A of the five-way valve 21, and then flows back to the fifth port E through the valve core. Thus, this non-cooling circuit allows the heat generated by the battery during operation to be dissipated to the environment through natural heat dissipation without the need for additional cooling devices.

[0058] In some embodiments, the control commands include battery heat dissipation and cooling commands. These commands can be commands that indicate the battery temperature exceeds the normal operating temperature, and that cooling can be achieved through a heat sink; in other words, commands that control the integrated thermal management system to implement the battery heat dissipation and cooling mode within 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 when the battery temperature is higher than the second preset temperature but not higher than the third preset temperature, and to send a battery cooling command to the five-way valve 21.

[0060] The five-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the battery heat dissipation and cooling command, 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 second input port and the output port of the battery circuit 14 and the motor circuit 13 are connected to form a battery heat dissipation and cooling circuit corresponding to the battery heat dissipation and cooling mode.

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

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

[0063] In one embodiment of this application, after the controller 11 determines that the battery temperature is higher than the second preset temperature, it will continue to determine whether the battery temperature is higher than the third preset temperature. When the battery temperature is higher than the third preset temperature, the controller 11 will start the first water pump 22a, the second water tank 131, the third water pump 22c and the radiator 132.

[0064] The controller 11 also sends a battery cooling command to the five-way valve. After receiving the motor cooling command from the controller 11, the five-way valve 21 controls the valve core position by rotating the drive mechanism, connecting the first interface pipe A with the second interface pipe B, and the fourth interface pipe D with the fifth interface pipe E. This connects the input port of the battery circuit 14 with the output port of the motor circuit 13, and the output port of the battery circuit 14 with the second input port of the motor circuit 13. In other words, the battery circuit is connected to the circuit where the radiator is located, forming a battery cooling circuit corresponding to the battery cooling mode.

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

[0066] In some embodiments, such as Figure 4As shown, the heating circuit 15 may include a three-way valve 151, 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 port of the water heater 152; the input port of the water heater 152 is connected to the output port of the second water pump 22b; the input port of the second water pump 22b is connected to the output port of the first water tank 153; and the input port of the first water tank 153 is connected to the fourth port I of the dual heat exchanger 142 and the output port of the warm air core 154. The seventh interface pipe M is connected to the input port of the warm air core 154. The eighth interface pipe N is connected to the third port H of the dual heat exchanger 154.

[0068] The three-way valve 151 may also include a drive 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 control commands 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 command, so as to help form the thermal management circuit corresponding to the thermal management mode.

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

[0072] In some embodiments, the control commands include: a battery heating command. The battery heating command can be a command indicating that the battery is in a low-temperature state and requires additional heating; that is, a command to control the integrated thermal management system to implement the battery heating mode in the 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 22b and the third water pump 22c when the battery temperature is lower than the fourth preset temperature, and to send the battery heating command to the three-way valve 151 and the five-way valve 21.

[0074] The three-way valve 151 is used to control the connection between the sixth interface pipe L and the eighth interface pipe N of the three-way valve 151 according to the battery heating command, 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 drive mechanism to drive the valve core to rotate according to the heating command, and 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 this application embodiment is lower than the second preset temperature. The fourth preset temperature can be set according to 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 Celsius.

[0077] In this embodiment, after determining that the battery temperature is lower than the second preset temperature, the controller will further 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 command to the three-way valve 151 and the five-way valve 21. After receiving the battery heating command from the controller 11, the three-way valve 151 controls the position of the valve core by rotating the drive mechanism, so that the sixth interface pipe L and the eighth interface pipe N are connected, thereby connecting the water heater 152 and the dual heat exchanger 142. This allows the coolant in the battery circuit to 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 command sent by the controller 11, the five-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the first interface pipe A and the fifth interface pipe E are connected, and the input port and output port of the battery circuit 14 are connected to form a battery heating circuit corresponding to the battery heating mode.

[0080] In the battery heating circuit, the coolant flowing out from the fifth port 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 double heat exchanger 142 from the first port F of the double heat exchanger 142.

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

[0082] At this time, the temperature of the coolant flowing into the battery circuit 14 is lower than the temperature of the coolant flowing into the heating circuit 15. Therefore, in the dual heat exchanger 154, the coolant flowing into the battery circuit 14 and the coolant flowing into the heating circuit 15 exchange heat. 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 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, thus using the heated coolant to heat the battery. The cooled coolant flows out from the fourth 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 in a dual heat exchanger, thereby providing the battery with the required heat and raising the battery temperature. This allows the battery to be heated when the battery temperature is too low, ensuring that the battery can operate under safe temperature conditions.

[0085] In some embodiments, the control commands may include battery waste heat recovery commands. Battery waste heat recovery commands can be used to achieve effective recovery of battery waste heat for heating the passenger cabin; that is, commands to control the integrated thermal management system to implement the battery waste heat recovery mode in the thermal management mode.

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

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

[0088] The five-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the battery waste heat recovery command, and 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 this application embodiment can be generated by the user's operation on the control panel or automatically generated when the cabin temperature is low. A battery temperature higher than a third preset temperature indicates that the battery temperature is above the safe operating temperature and that there is excess heat.

[0090] In one embodiment of this application, after receiving a cabin heating request, the controller 11 determines that the battery temperature exceeds the third preset temperature, that is, when the battery 141 can provide heat to the cabin, 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 command to the three-way valve 151 and the five-way valve 21.

[0091] After receiving the battery waste heat recovery command sent by the controller 11, the three-way valve 151 controls the position of the valve core by rotating the drive 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 dual heat exchanger 152 and the heater core 154 are connected. This allows the coolant in the battery circuit to exchange heat with the coolant in the heating circuit, 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 command sent by the controller 11, the five-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the first interface pipe A and the fifth interface pipe E are connected, and the input port and output 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 from the fifth port pipe E of the five-way valve 21 is pressurized by the third water pump 22c and flows to the battery 141. Because the battery temperature is high and the coolant temperature is low, the temperature of the coolant flowing through the battery 141 increases, while the battery temperature decreases. The coolant flowing out from the battery 141 enters the dual heat exchanger 142 through the first port F.

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

[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 port I of the dual heat exchanger 142 and returns to the first water tank 153. The cooled coolant flows out from the second 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.

[0097] The coolant flowing from the seventh interface pipe M flows through the heater core 154, which generates hot air, which is then delivered into the passenger compartment through the air duct. The coolant flowing out of the heater core 154 cools down and flows back to the first water tank 153. The heated coolant in the first water tank 153 mixes with the cooled coolant, repeating the above flow path, 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 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 command includes a first motor waste heat recovery command. The first motor waste heat recovery command can be used to achieve effective recovery of motor waste heat for heating the passenger cabin; that is, it controls 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 three water pumps 22, the first water tank 153, the second water tank 131, and the heater core 154 when it receives a request for heating of the passenger cabin and the motor temperature is higher than the fifth preset temperature and the battery temperature is not higher than the second preset temperature, and to send a first motor waste heat recovery command 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 to the seventh interface pipe M, and the sixth interface pipe L to 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 drive mechanism to drive the valve core to rotate according to the first motor waste heat recovery command, and 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 battery circuit 14 is connected to the first input port and the output port of the motor circuit 13 respectively, forming the first motor waste heat recovery circuit corresponding to the first motor waste heat recovery mode.

[0103] The fifth preset temperature involved in this application embodiment is higher than the first preset temperature. The first preset temperature can be set according to 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 Celsius. A motor temperature higher than the fifth preset temperature indicates that the motor is in a high-temperature state and has excess heat. A battery temperature not higher than the second preset temperature indicates that the battery is not in a high-temperature state.

[0104] In one embodiment of this application, after receiving a cabin heating request, 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 the motor has more heat, it will start the first water tank 153, the second water tank 131, the three water pumps 22 and the heater core 154, and send the first motor waste heat recovery command to the three-way valve 151 and the five-way valve 21.

[0105] After receiving the battery waste heat recovery command sent by the controller 11, the three-way valve 151 controls the position of the valve core by rotating the drive 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 dual heat exchanger 152 is connected to the warm air core 154, and the heating circuit is in the warm air state.

[0106] After receiving the battery heating command sent by the controller 11, the five-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the first interface pipe A is connected to the third interface pipe C, and the fourth interface pipe D is connected to the fifth interface pipe E, so that the input port of the battery circuit 14 is connected to the output port of the motor circuit 13, and the output port of the battery circuit 14 is connected to the first input 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 circuit, coolant flows from the third port C of the five-way valve 21 into the first input port of the motor circuit 13, and then flows through the first pipeline into the second water tank 131. 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 heats up, and the motor cools down. The heated coolant flows into the fourth port D of the five-way valve 21, and then flows from the fifth port E to the third water pump 22c. After being pressurized by the third water pump 22c, it flows through the battery 141 and enters the dual heat exchanger 142 from the first port F.

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

[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 port I of the dual heat exchanger 142 and returns to the first water tank 153. The cooled coolant flows out from the second 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 third interface pipe C through the valve core.

[0111] The coolant flowing from the seventh interface pipe M flows through the heater core 154, which generates hot air, which is then delivered into the passenger compartment through the air duct. The coolant flowing out of the heater core 154 cools down and flows back to the first water tank 153. The heated coolant in the first water tank 153 mixes with the cooled coolant, repeating the above flow path, and the mixed coolant flows through the heater core.

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

[0113] In some embodiments, the control command includes a second motor waste heat recovery command. The second motor waste heat recovery command can be a command to utilize the waste heat from the motor to heat the battery, i.e., a command to control the integrated thermal management system to implement the two-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 when the motor temperature is higher than the fifth preset temperature and the battery temperature is lower than the fourth preset temperature, and to send a second motor waste heat recovery command to the five-way valve 21.

[0115] The five-way valve 21 is used to control the drive mechanism to drive the valve core to rotate according to the second motor waste heat recovery command, and connect the first interface pipe A and the third interface pipe C, as well as the fourth interface pipe D and the fifth interface pipe E, so that the battery circuit 14 is connected to the first input port and the output 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] In this embodiment of the application, a battery temperature below a fourth preset temperature indicates that the battery is in a low-temperature state. When the controller 11 determines that the motor temperature is above a fifth preset temperature and the battery temperature is below the fourth preset temperature, i.e., the motor has excess heat and the battery needs to be heated, it will start the second water tank 131, the first water pump 22a, and the third water pump 22c, and will send a second motor waste heat recovery command to the five-way valve 21.

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

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

[0119] In this way, the coolant carries away the heat from the motor and flows from the motor circuit to the battery circuit, heating the battery, increasing the battery temperature, and reducing the motor temperature, thereby achieving the purpose of recovering the heat from the motor and heating the passenger compartment.

[0120] In some embodiments, the control command includes a third motor waste heat recovery command. The first motor waste heat recovery command can be used to achieve effective recovery of motor waste heat and use it for heating the battery and 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 three water pumps 22, the first water tank 153, the second water tank 11, the heater core 154, and the water heater 152 when it receives a request for heating the passenger cabin and the motor temperature is higher than the fifth preset temperature and the battery temperature is lower than the fourth preset temperature, and to send a third motor waste heat recovery command to the three-way valve 151 and the five-way valve 21.

[0122] The three-way valve 151 is used to connect the sixth interface pipe L to the seventh interface pipe M, and the sixth interface pipe L to 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 drive mechanism to drive the valve core to rotate according to the waste heat recovery command of the third motor, and connect the first interface pipe A and the third interface pipe C, as well as the fourth interface pipe D and the fifth interface pipe E, so that the battery circuit 14 is connected to the first input port and the output port, forming a third motor waste heat recovery circuit corresponding to the waste heat recovery mode of the third motor.

[0124] In one embodiment of this application, after receiving a cabin heating request, 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 motor waste heat is insufficient to provide heat to the cabin and the battery at the same time. In this case, it will start 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 command to the three-way valve 151 and the five-way valve 21.

[0125] After receiving the battery waste heat recovery command sent by the controller 11, the three-way valve 151 controls the position of the valve core by rotating the drive 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 to the dual heat exchanger 152 and the warm air core 154 respectively, so that the heating circuit 15 is in the state of heating warm air.

[0126] After receiving the third motor waste heat recovery command sent by the controller 11, the five-way valve 21 controls the valve core position by rotating the drive mechanism, so that the first interface pipe A is connected to the third interface pipe C, and the fourth interface pipe D is connected to the fifth interface pipe E, so that the input port of the battery circuit 14 is connected to the output port of the motor circuit 13, and the output port of the battery circuit 14 is connected to the first input 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, coolant flows from the third port C of the five-way valve 21 into the first input port of the motor circuit 13, and then flows through the first pipeline into the second water tank 131. 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 heats up, and the motor cools down. The heated coolant flows into the fourth port D of the five-way valve 21, and then flows from the fifth port 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 port F.

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

[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] Cooled coolant flows out from the fourth port I of the dual heat exchanger 142 and returns to the first water tank 153. Heated coolant flows out from the second port G of the dual heat exchanger 142, flows from the first interface pipe A into the five-way valve 21, and then flows back to the third interface pipe C through the valve core.

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

[0132] In this way, the coolant carries away the heat from the motor and flows from the motor circuit to the battery circuit to heat the battery. It also heats the coolant in the heating circuit through the water heater to provide heat to the heater core, and increases the temperature of the coolant in the battery circuit through the dual heat exchangers, thereby achieving the purpose of recovering the heat from the motor and heating the passenger compartment and the battery together.

[0133] In some embodiments, such as 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 shut-off valve 169, and a gas-liquid separator 1610.

[0134] The first expansion valve 161, the second expansion valve 162, and the third expansion valve 163 are used to control the flow and pressure of the refrigerant. The evaporator 164 evaporates the liquid refrigerant to form refrigerant vapor, thereby absorbing heat from the surrounding air and lowering the air temperature. The compressor 168 compresses the refrigerant vapor, increasing its pressure and temperature, and providing circulating power for the refrigeration system. Both the condenser 165 and the built-in condenser 167 convert the high-temperature, high-pressure refrigerant vapor into low-temperature, high-pressure liquid refrigerant. The gas-liquid separator 1610 stores the refrigerant and replenishes it to the circuit. The gas-liquid separator 1610 also separates the refrigerant vapor, delivering it to the compressor 168 to ensure stable circuit operation. The shut-off valve 169 controls the refrigerant flow.

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

[0136] In some embodiments, the control commands include: a battery-cooled air conditioning command. The battery cooling command can be a command that implements a battery-cooled air conditioning mode in the thermal management system when the battery temperature is high, the radiator is insufficient to cool it, and additional cooling devices are needed; that is, a command that controls the integrated thermal management system to implement the battery-cooled air conditioning 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 a third preset temperature and the motor temperature is higher than a first preset temperature, and to send a battery air conditioning cooling command to the five-way valve 21. Specifically, the controller 11 controlling the air conditioning circuit 16 to enter the cooling mode 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 shut-off valve 169, so that the refrigerant in the air conditioning circuit 16 and the coolant in the battery circuit 14 can exchange heat and cold in the dual heat exchangers, thereby lowering the coolant temperature.

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

[0139] In one embodiment of this application, a battery temperature higher than a third preset temperature indicates that the battery is in a high-temperature state. A motor temperature higher than a 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 can indicate a state where the battery needs cooling, but a heat sink cannot be used for cooling.

[0140] After determining 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 shut-off 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 exchangers, thereby lowering 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 command to the five-way valve 21. After receiving the motor cooling command from the controller 11, the five-way valve 21 controls the position of the valve core by rotating the drive mechanism, so that the first interface pipe A and the fifth interface pipe E are connected, thereby connecting the input and output ports of the battery circuit 14 to form a battery air conditioning cooling circuit corresponding to the battery air conditioning cooling mode.

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

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

[0144] In the dual heat exchanger 142, the refrigerant in the air conditioning circuit 16 exchanges heat with the coolant in the battery circuit 14. That is, the low-temperature refrigerant in the air conditioning circuit 16 is used to cool the coolant in the battery circuit 14, thereby increasing the temperature of the refrigerant in the air conditioning circuit 16 and decreasing the temperature of the coolant in the battery circuit 14.

[0145] The heated refrigerant flows out from the fifth port J of the dual heat exchanger 142 and returns to the gas-liquid separator 1610. The cooled coolant flows out from the second port G of the dual heat exchanger 142 and flows to the first interface pipe A of the five-way valve 21, and then 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 then 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 also includes a fan (FAN). The radiator 175, condenser 165, and fan (FAN) are integrated together. The heater core 142, evaporator 164, and built-in condenser 167 are also integrated together. This allows for a reduction in system size.

[0148] In some embodiments, the integrated thermal management system may further include multiple sensors. These multiple sensors include a first temperature sensor T1, a second temperature sensor T2, 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 installed at the outlet of the built-in condenser. The second temperature sensor T2 and the third temperature sensor T3 are installed 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 installed at the inlet and outlet of the motor 133 to measure the inlet and outlet temperatures of the motor 133.

[0149] Multiple sensors may also include a pressure sensor P and a pressure-temperature sensor PT. For example... Figure 4 As shown, pressure sensor P and pressure-temperature sensor PT can be installed in air conditioning circuit 16. Pressure sensor P is used to measure the pressure of the refrigerant at the compressor outlet, and pressure-temperature sensor PT is used to measure the pressure and temperature of the refrigerant flowing out from dual heat exchanger 142.

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

[0151] In another aspect, this application provides a control method for an integrated thermal management system, applicable to any of the integrated thermal management systems described above.

[0152] In another aspect, this application provides a vehicle, Figure 5 This application provides a schematic diagram of the structure of a vehicle according to an embodiment of the present application. Figure 5 As shown, vehicle 50 includes any of the above-described integrated thermal management systems 51.

[0153] It should be understood that the specific features, operations, and details described herein with respect to the methods of this application can also be similarly applied to the apparatus and system of this application, or vice versa. Furthermore, each step of the methods of this application described above can be performed by a corresponding component or unit of the apparatus or system of this application.

[0154] It should be understood that the various modules / units of the device of this application can be implemented wholly or partially through software, hardware, firmware, or a combination thereof. Each module / unit can be embedded in the processor of the electronic device in hardware or firmware form or independent of the processor, or it can be stored in the memory of the electronic device in software form for the processor to call to execute the operation of each module / unit. Each module / unit can be implemented as an independent component or module, or two or more modules / units can be implemented as a single component or module.

[0155] The technical features described above can be combined arbitrarily. Although not all possible combinations of these technical features are described, any combination of these technical features should be considered to be covered by this specification, provided that such combination does not contain contradictions.

[0156] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An integrated thermal management system, characterized in that, include: The system includes a five-way valve integrated module, a motor circuit, a battery circuit, a heating circuit, an air conditioning 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 control commands according to the thermal management mode. The control commands are used to control the connection status between the five-way valve integrated module and the motor circuit and battery circuit. The three water pumps are the first water pump, the second water pump, and the third water pump, and the three water pumps are connected in series with the battery circuit, the heating circuit, and the motor circuit, respectively. The five-way valve includes: five interface pipes, a valve core, and a drive mechanism; the five interface pipes are respectively connected to three ports of the motor circuit and two ports of the battery circuit. The five-way valve is used to control the drive mechanism to drive the valve core to rotate according to the control command, and connect at least two of the five interface pipes to the target interface pipes, so that the pipe ports of the target circuits connected to the at least two target interface pipes are connected to form a thermal management circuit corresponding to the thermal management mode. The five interface tubes are designated as the first interface tube, second interface tube, third interface tube, fourth interface tube, and fifth interface tube; the five interface tubes are respectively connected to three ports of the motor circuit and two ports of the battery circuit, including: The first interface tube is connected to the output port of the battery circuit; The second interface tube is connected to the second input port of the motor circuit; The third interface pipe is connected to the first input port of the motor circuit; The fourth interface pipe is connected to the output port of the motor circuit; The fifth interface tube is connected to the input port of the battery circuit; The motor circuit includes: a second water tank, a radiator, and a motor; The first input port of the second water tank is the first input port of the motor circuit, which is connected to the third interface pipe through the first pipeline. The second input port of the second water tank is connected to the output port of the radiator through the second pipeline. The input port of the radiator is the second input port of the motor circuit, which is connected to the second interface pipe. The output port of the second water tank is connected to the input port of the first water pump, the output port of the first water pump is connected to one port of the motor, and the other port of the motor is the output port of the motor circuit, which is connected to the fourth interface pipe. The battery circuit includes: a battery and dual heat exchangers; The input port of the third water pump is connected to the fifth interface pipe, the output port of the third water pump is connected to one end of the battery, the other end of the battery is connected to the first port of the dual heat exchanger, and the second port of the dual heat exchanger is the output port of the battery circuit, which is connected to the first interface pipe. The air conditioning circuit includes: a first expansion valve, a second expansion valve, a third expansion valve, an evaporator, a condenser, a built-in condenser, a compressor, a shut-off valve, and a gas-liquid separator; One port of the compressor is connected to one port of the built-in condenser, and the other port of the built-in condenser is connected to one port of the first expansion valve. The other port of the first expansion valve is connected to one port of the condenser, and the other port of the condenser is connected to one port of the shut-off valve, one port of the second expansion valve, and one port of the third expansion valve. The other port of the second expansion valve is connected to the sixth port of the dual heat exchanger; The other port of the shut-off valve is connected to the fifth port of the dual heat exchanger, a port of the evaporator, and a port of the gas-liquid separator, respectively. The other port of the gas-liquid separator is connected to the other port of the compressor; The other port of the third expansion valve is connected to the other port of the evaporator.

2. The system according to claim 1, characterized in that, The control commands include: motor non-cooling command; 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 to send a motor non-cooling command 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 command, and to connect the third interface pipe and the fourth interface pipe so that the first input port and the output port of the motor circuit are connected to form a motor non-cooling circuit corresponding to the motor non-cooling mode.

3. The system according to claim 1, characterized in that, The control commands include: motor cooling commands; The controller is used to start the first water pump, the second water tank and the radiator when the motor temperature is higher than the first preset temperature, and to send a motor cooling command to the five-way valve. The five-way valve is used to control the drive mechanism to rotate the valve core according to the motor cooling command, and connect the second interface pipe and the fourth interface pipe so that the second input port and the output port of the motor circuit are connected to form a motor cooling circuit corresponding to the motor cooling mode.

4. The system according to claim 1, characterized in that, The control commands include: battery non-cooling command; The controller is used to start the third water pump and send a battery non-cooling command 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 drive mechanism to drive the valve core to rotate according to the battery non-cooling command, and connect the first interface pipe and the fifth interface pipe to make the battery circuit connected, forming a battery non-cooling circuit corresponding to the battery non-cooling mode.

5. The system according to claim 1, characterized in that, The control commands include battery heat dissipation and cooling commands; The controller is used to start the first water pump, the second water tank, the third water pump and the radiator when the battery temperature is higher than the second preset temperature but not higher than the third preset temperature, and to send a battery cooling command 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 battery heat dissipation and cooling command, connect the first interface pipe and the second interface pipe, and connect the fourth interface pipe and the fifth interface pipe, so that the second input port and the output port of the battery circuit and the motor circuit are connected to form a battery heat dissipation and cooling circuit corresponding to the battery heat dissipation and cooling mode.

6. The system according to claim 1, characterized in that, The heating circuit includes: a three-way valve, a water heater, a first water tank, and a warm air core; The three-way valve includes: a sixth interface pipe, a seventh interface pipe, and an eighth interface pipe; The sixth interface pipe is connected to the output port of the instant water heater, the input port of the instant water heater is connected to the output port of the second water pump, the input port of the second water pump is connected to the output port of the first water tank, and the input port of the first water tank is connected to the fourth port of the dual heat exchanger. The seventh interface pipe is connected to the output port of the heating core, and the input port of the heating core is connected to the fourth port of the dual heat exchanger. The eighth interface pipe is connected to the third port of the dual heat exchanger.

7. The system according to claim 6, characterized in that, The control commands include: battery heating command; The controller is used to activate the water heater, the first water tank, the second water pump, and the third water pump when the battery temperature is lower than the fourth preset temperature, and to send the battery heating command 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 connect with the eighth interface pipe according to the battery heating command, 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 drive mechanism to drive the valve core to rotate according to the heating command, and to 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.

8. The system according to claim 6, characterized in that, The control commands include: battery waste heat recovery commands; The controller is used to activate the first water tank, the second water pump, the third water pump, and the heater core when a cabin heating request is received and the battery temperature is higher than a third preset temperature, and to send the battery waste heat recovery command 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 drive mechanism to rotate the valve core according to the battery waste heat recovery command, and connect the first interface pipe and the fifth interface pipe to connect the battery circuit and form a battery waste heat recovery circuit corresponding to the battery waste heat recovery mode.

9. The system according to claim 6, characterized in that, The control commands include: a first motor waste heat recovery command; The controller is used to start the three water pumps, the first water tank, the second water tank and the heater core when it receives a cabin heating request and the motor temperature is higher than the fifth preset temperature and the battery temperature is not higher than the second preset temperature, and to send the first motor waste heat recovery command to the three-way valve and the five-way valve. The three-way valve is used to connect the sixth interface pipe to the seventh interface pipe, and the sixth interface pipe to the eighth interface pipe, so that the heating circuit is in a warm air state. The five-way valve is used to control the drive mechanism to drive the valve core to rotate according to the first motor waste heat recovery command, and to connect the first interface pipe and the third interface pipe, as well as the fourth interface pipe and the fifth interface pipe, so that the battery circuit is connected to the first input port and the output port of the motor circuit respectively, forming a first motor waste heat recovery circuit corresponding to the first motor waste heat recovery mode.

10. The system according to claim 6, characterized in that, The control commands include: a second motor waste heat recovery command; The controller is used to start the first water pump, the third water pump and the second water tank when the motor temperature is higher than the fifth preset temperature and the battery temperature is lower than the fourth preset temperature, and to send a second motor waste heat recovery command 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 second motor waste heat recovery command, and to connect the first interface pipe and the third interface pipe, as well as the fourth interface pipe and the fifth interface pipe, so that the battery circuit is connected to the first input port and the output port of the motor circuit respectively, forming a second motor waste heat recovery circuit corresponding to the second motor waste heat recovery mode.

11. The system according to claim 6, characterized in that, The control commands include: a third motor waste heat recovery command; The controller is used to start the three water pumps, the first water tank, the second water tank, the heater core and the instant water heater when a cabin heating request is received and the motor temperature is higher than the fifth preset temperature and the battery temperature is lower than the fourth preset temperature, and to send the third motor waste heat recovery command to the three-way valve and the five-way valve. The three-way valve is used to connect the sixth interface pipe of the three-way valve to the seventh interface pipe, and the sixth interface pipe to the eighth interface pipe, so that the coolant in the heating circuit and the battery circuit can exchange heat in the dual 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 command, and to connect the first interface pipe and the third interface pipe, as well as the fourth interface pipe and the fifth interface pipe, so that the battery circuit is connected to the first input port and the output port, forming a third motor waste heat recovery circuit corresponding to the third motor waste heat recovery mode.

12. The system according to claim 1, characterized in that, The control commands include: battery air conditioning cooling commands; The controller is used to control the air conditioning circuit 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 to send the battery air conditioning cooling command to the five-way valve. The control of 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 shut-off valve, so that the refrigerant in the air conditioning circuit and the coolant in the battery circuit can exchange heat and cold in the dual heat exchangers to reduce the temperature of the coolant. The five-way valve is used to control the drive mechanism to rotate the valve core according to the battery air conditioning cooling command, and connect the first interface pipe and the fifth interface pipe to connect the battery circuit and form a battery air conditioning cooling circuit corresponding to the battery air conditioning cooling mode.

13. A control method for an integrated thermal management system, characterized in that, Applied to the integrated thermal management system as described in any one of claims 1 to 12.

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