Integrated thermal management system, control method and vehicle

Abstract

The invention provides an integrated heat management system, a control method and a vehicle. The system comprises a nine-way valve integrated module, a motor loop, a battery loop, a heating loop, a heat exchange loop and a controller. Wherein the nine-way valve integration module is integrated with a nine-way valve, a liquid cooling condenser, a heat exchanger, a battery water pump, a motor water pump and a warm air water pump; a controller for generating control according to the thermal management mode; the liquid cooling condenser and the warm air water pump are connected in series with the heating loop, and the heat exchanger is connected in series with the heat exchange loop; and the nine-way valve is used for controlling the driving mechanism to drive the valve element to rotate according to the control instruction and communicating at least two target interface pipes in the nine interface pipes, so that pipe orifices of target loops connected with the at least two target interface pipes are communicated, and a heat management loop corresponding to the heat management mode is formed. 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 invention relates to the technical field of thermal management, and particularly to an integrated thermal management system, a control method and a vehicle. Background Art

[0002] The current thermal management system shows a trend of complexity. Although it aims to achieve more refined and comprehensive thermal regulation functions, this process is also accompanied by problems such as a significant increase in the number of components and the expansion of the system volume. Particularly prominent is the widespread application of key components such as three-way valves, four-way valves and water pumps, which directly leads to the intricate internal connection pipelines of the system. This not only exacerbates the complexity of control signals and the increasing demand, but also inevitably increases the energy loss during transmission, and poses a greater challenge to the limited space resources inside the vehicle. Summary of the Invention

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

[0004] In a first aspect, an embodiment of the present invention provides an integrated thermal management system, which includes a nine-way valve integration module, a motor circuit, a battery circuit, a heating circuit, a heat exchange circuit and a controller; wherein, the nine-way valve integration module integrates: a nine-way valve, a liquid-cooled condenser connected to the nine-way valve, a heat exchanger, a battery water pump, a motor water pump and a heater water pump; the controller is configured to generate a control instruction according to a thermal management mode, and the control instruction is used to control the connection states of the nine-way valve integration module with the motor circuit, the heat exchange circuit, the heating circuit and the battery circuit; the nine-way valve includes nine interface pipes, a driving mechanism and a valve core; the nine interface pipes are respectively connected to three pipe orifices of the motor circuit, two pipe orifices of the heating circuit, two pipe orifices of the battery circuit and two pipe orifices of the heat exchange circuit; the battery water pump is connected in series with the battery circuit, the motor water pump is connected in series with the motor circuit, the liquid-cooled condenser and the heater water pump are connected in series with the heating circuit, and the heat exchanger is connected in series with the heat exchange circuit; the nine-way valve is configured to control the driving mechanism to drive the valve core to rotate according to the control instruction, and connect at least two target interface pipes among the nine interface pipes, so that the pipe orifices of the target circuit connected to the at least two target interface pipes are connected to form a thermal management circuit corresponding to the thermal management mode.

[0005] In a second aspect, a control method for an integrated thermal management system is applied to any one of the integrated thermal management systems in the embodiments of the present invention.

[0006] In a third aspect, an embodiment of the present invention provides a vehicle, which includes any one of the integrated thermal management systems in the embodiments of the present invention.

[0007] In summary, the integrated thermal management system, control method, and vehicle provided by the present invention have at least the following beneficial effects: By connecting the nine-way integrated valve module integrating a nine-way valve, multiple water pumps, a heat exchanger, and a liquid-cooled condenser to each circuit, precise control of the connection state of each circuit can be achieved to meet different thermal management requirements, simplify the system structure, reduce the number of connecting pipelines in the system, reduce the overall volume of the system, increase the conversion ratio between energies, reduce energy loss, and reduce the number of required control signals. Thus, not only can the efficiency and reliability of the thermal management system be improved, but also the complexity and cost of the system can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0009] Figure 1 Shows a schematic structural diagram of an integrated thermal management system provided by an embodiment of the present invention;

[0010] Figure 2 Shows a schematic structural diagram of another integrated thermal management system provided by another embodiment of the present invention;

[0011] Figure 3 Shows a schematic structural diagram of a nine-way valve integrated module provided by an embodiment of the present invention;

[0012] Figure 4 Shows a schematic structural diagram of an integrated thermal management system provided by an embodiment of the present invention;

[0013] Figures 5 - 12 Shows a schematic structural diagram of a system with 8 pipe orifice connection modes provided by an embodiment of the present invention;

[0014] Figure 13 Shows a schematic structural diagram of a vehicle provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to make the above and other features and advantages of the present invention clearer, the present invention will be further described below with reference to the 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 merely exemplary, not restrictive.

[0016] In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known steps or operations have not been described in detail to avoid obscuring the present invention.

[0017] An embodiment of the present invention provides an integrated thermal management system on the one hand. Figure 1 The following shows a schematic diagram of the architecture of an integrated thermal management system provided by an embodiment of the present invention. As Figure 1 shown, the integrated thermal management system 10 includes: a controller 11, a nine-way valve integration module 12, a motor circuit 13, a battery circuit 14, a heating circuit 15, and a heat exchange circuit 16.

[0018] Among them, a communication connection is established between the controller 11 and the nine-way valve integration module 12, the motor circuit 13, the battery circuit 14, the heating circuit 15, and the heat exchange circuit 16. The nine-way valve integration module 12 is connected to the motor circuit 13, the battery circuit 14, the heat exchange circuit 15, and the heating circuit 16.

[0019] The controller 11 can be a vehicle controller, which can be used to generate control instructions according to the thermal management mode, and can also be used to send the control instructions to the circuits related to the thermal management mode and the nine-way valve integration module 12. Among them, the control instructions are used to control the connection states of the nine-way valve integration module 12 with the motor circuit 13, the battery circuit 14, the heating circuit 15, and the heat exchange circuit 16.

[0020] In addition, the control instructions can also be used to indicate the working states of each circuit. Among them, the working states of the heating circuit 15 can include but are not limited to the heating state, the warm air state, and the heating and warm air state, etc.

[0021] Figure 2 The following shows a schematic diagram of the architecture of another integrated thermal management system provided by another embodiment of the present invention. Compared with Figure 1 , Figure 2 the integrated thermal management system 10 shown also includes: an air conditioning circuit 17. The controller 11 is connected to the air conditioning circuit 17 and is used to control the working state of the air conditioning circuit 17. Among them, the working states of the air conditioning circuit 17 include the refrigeration state, the blowing state, etc.

[0022] The air conditioning circuit 17 is respectively connected in series with a heat exchanger 33 and a liquid-cooled condenser 32. The air conditioning circuit 17 can be used to perform heat and cold exchange with the heat exchange circuit 16 through the heat exchanger 33 to cool down the coolant in the heat exchange circuit 16. And, the air conditioning circuit 17 can be used to perform heat and cold exchange with the heating circuit 15 through the liquid-cooled condenser 32 to heat up the coolant in the heating circuit 15.

[0023] In some embodiments, the integrated thermal management system 10 may further include a water tank 18. The output pipe opening of the water tank 18 may be connected to the motor circuit 13 for supplementing coolant to the motor circuit 13.

[0024] Figure 3 The structural schematic diagram of a nine-way valve integrated module provided by an embodiment of the present invention is shown, as Figure 3 shown, the nine-way valve integrated module 12 integrates a nine-way valve 31, a liquid-cooled condenser 32, a heat exchanger 33, a battery water pump 34, a motor water pump 35, and a heater water pump 36 respectively connected to the nine-way valve 31.

[0025] The battery water pump 34 is connected in series with the battery circuit 13, the motor water pump 35 is connected in series with the motor circuit 13, the liquid-cooled condenser 32 and the heater water pump 36 are connected in series with the heating circuit 15, and the heat exchanger 33 is connected in series with the heat exchange circuit 16.

[0026] The nine-way valve 31 includes nine interface pipes, a driving mechanism, and a valve core. The valve core is arranged in the shell for dividing the shell cavity into multiple small cavities, and each small cavity communicates with two interface pipes. The driving mechanism is used to drive the valve core to rotate so as to change the communication between each small cavity and the interface pipes.

[0027] The nine interface pipes are respectively connected to three pipe openings of the motor circuit 13, two pipe openings of the heating circuit 15, two pipe openings of the battery circuit 14, and two pipe openings of the heat exchange circuit 16.

[0028] It should be noted that the three pipe openings of the motor circuit 13 include a first input pipe opening, a second input pipe opening, and an output pipe opening. The two pipe openings of the heating circuit 15 include an input pipe opening and an output pipe opening. The two pipe openings of the battery circuit 14 include an input pipe opening and an output pipe opening. The two pipe openings of the heat exchange circuit 16 include an input pipe opening and an output pipe opening.

[0029] The nine-way valve 31 is used to control the driving mechanism to drive the valve core to rotate according to a control instruction, connect at least two target interface pipes among the nine interface pipes, so that the pipe openings 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.

[0030] It should be noted that the thermal management modes involved in the embodiments of the present invention may include but are not limited to a battery heating mode, a battery cooling mode, a battery non-cooling mode, at least two battery waste heat recovery modes, at least two motor waste heat recovery modes, an occupant compartment heating mode, and an occupant compartment and battery heating mode. The thermal management circuits may include but are not limited to a battery heating circuit, a battery cooling circuit, a battery non-cooling circuit, at least two battery waste heat recovery circuits, at least two motor waste heat recovery circuits, an occupant compartment heating circuit, and an occupant compartment and battery heating circuit.

[0031] In some embodiments, when the integrated thermal management system 10 further includes an air conditioning circuit 17, as Figure 3 shown, the nine-way valve integration module 12 is further integrated with an expansion valve 37 connected to the third pipe orifice of the heat exchanger 33. The expansion valve 37 is used to control the heat and cold exchange between the heat exchange circuit 16 and the air conditioning circuit 17.

[0032] In some embodiments, the nine-way valve integration module 12 can be formed by a water plate. The water plate can include placement positions for each device of the nine-way valve integration module 12 and internal communication pipes. Among them, the placement positions are used to place the corresponding devices. And, the internal communication pipes are used to connect each device according to the connection relationship between the devices.

[0033] In addition, the water plate is also provided with shock-proof positions. The shock-proof positions are used to place shock-absorbing films to reduce the impact of vehicle vibration on the integrated thermal management system.

[0034] In some embodiments, the water plate can also be provided with other placement positions for placing other devices in the integrated thermal management system.

[0035] Figure 4 The structural schematic diagram of an integrated thermal management system provided by an embodiment of the present invention is shown, Figure 4 in which the controller 11 is not marked. It should be noted that, Figure 4 is Figure 2 the specific system structural schematic diagram.

[0036] As Figure 4 shown, the nine interface pipes of the nine-way valve are respectively the first interface pipe A, the second interface pipe B, the third interface pipe C, the fourth interface pipe D, the fifth interface pipe E, the sixth interface pipe F, the seventh interface pipe G, the eighth interface pipe H, and the ninth interface pipe I.

[0037] The nine interface pipes are respectively connected to three pipe orifices of the motor circuit, two pipe orifices of the heating circuit, two pipe orifices of the battery circuit, and two pipe orifices of the heat exchange circuit, including: the first interface pipe A is connected to the output pipe orifice of the motor circuit 13, the second interface pipe B is connected to the input pipe orifice of the battery circuit 14, the third interface pipe C is connected to the input pipe orifice of the heat exchange circuit 15, the fourth interface pipe D is connected to the output pipe orifice of the heat exchange circuit 15, the fifth interface pipe E is connected to the first input pipe orifice of the motor circuit 13, the sixth interface pipe F is connected to the output pipe orifice of the heating circuit 15, the seventh interface pipe G is connected to the input pipe orifice of the heating circuit 15, the eighth interface pipe H is connected to the output pipe orifice of the battery circuit 14, and the ninth interface pipe I is connected to the second input pipe orifice of the motor circuit 13.

[0038] As Figure 4As shown, the motor circuit 13 includes: a radiator 131 and a motor 132. Among them, the radiator 131 is used to dissipate heat from the coolant in the circuit and reduce the temperature of the coolant.

[0039] The input pipe orifice of the motor 132 is the first input pipe orifice of the motor circuit 13, which is connected to the fifth interface pipe E. The output pipe orifice of the motor 132 is the output pipe orifice of the motor circuit 13, and is connected to the first interface pipe A via the motor water pump 35.

[0040] The input pipe orifice of the radiator 131 is the second input pipe orifice of the motor circuit 13, which is connected to the ninth interface pipe I. The output pipe orifice of the radiator 132 is connected to the input pipe orifice of the motor 131.

[0041] In addition, the output pipe orifice of the motor 132 is the output pipe orifice of the motor circuit 13, which is connected to the input pipe orifice of the motor water pump 35. The output pipe orifice of the motor water pump 35 is connected to the first interface pipe A of the nine-way valve 31.

[0042] In some embodiments, the control instruction includes: a motor non-cooling instruction. The motor non-cooling instruction can be an instruction that the battery temperature is within the normal temperature range and no additional cooling is required, that is, an instruction to control the integrated thermal management system to implement the motor non-cooling mode in the thermal management mode.

[0043] The controller 11 is used to start the motor water pump 35 and send a motor non-cooling instruction to the nine-way valve when the motor temperature is not higher than the first preset temperature.

[0044] The nine-way valve 31 is used to control the driving mechanism to drive the valve core to rotate according to the motor non-cooling instruction, connect the first interface pipe A and the fifth interface pipe E, so that the first input pipe orifice of the motor circuit 13 is connected to the output pipe orifice of the motor circuit 13, and form a motor non-cooling circuit corresponding to the motor non-cooling mode.

[0045] The motor temperature involved in the embodiment of the present invention refers to the current temperature of the motor 132. The first preset temperature can be set according to 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.

[0046] In an embodiment of the present invention, the controller 11 will judge the magnitude of the motor temperature and the first preset temperature. When the motor temperature is not higher than the first preset temperature, the controller 11 will send a motor non-cooling instruction to the nine-way valve 31. At the same time, the controller 11 will also start the motor water pump 35.

[0047] After the nine-way valve 31 receives the motor non-cooling instruction sent by the controller 11, it controls the position of the valve core by rotating the driving mechanism, so that the first interface pipe A is communicated with the fifth interface pipe E, and the first input pipe orifice and the output pipe orifice of the motor circuit 13 are communicated, that is, the nine-way valve 31 is communicated with the motor 132 through pipelines, forming a motor non-cooling circuit corresponding to the motor non-cooling mode.

[0048] In the motor non-cooling circuit, the coolant flows into the first input pipe orifice of the motor circuit 13 from the fifth interface pipe E of the nine-way valve 31, and flows through the pipeline to the motor 132. The coolant flowing through the motor 132 flows through the pipeline to the motor water pump 35, and after being pressurized by the motor water pump 35, it flows into the first interface pipe A of the nine-way valve 31 and flows back to the fifth interface pipe E through the valve core of the nine-way valve 31. 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 intervention of additional cooling devices.

[0049] In some embodiments, the control instruction includes: a motor heat dissipation instruction. The motor heat dissipation instruction is an instruction that the motor temperature exceeds the safe temperature and a radiator is required for heat dissipation, that is, an instruction to control the integrated thermal management system to implement the motor heat dissipation mode in the thermal management mode.

[0050] The controller 11 is configured to start the motor water pump 35 and the radiator 131 and send a motor heat dissipation instruction to the nine-way valve 31 when the motor temperature is higher than the first preset temperature.

[0051] The nine-way valve 31 is configured to control the driving mechanism to drive the valve core to rotate according to the motor heat dissipation instruction, and communicate the first interface pipe A with the ninth interface pipe I, so that the second input pipe orifice and the output pipe orifice of the motor circuit are communicated, forming a motor heat dissipation circuit corresponding to the motor heat dissipation mode.

[0052] In an embodiment of the present invention, when the motor temperature is higher than the first preset temperature, it indicates that the motor is in a high-temperature state, and now a radiator is needed to assist in cooling.

[0053] Specifically, when the controller 11 determines that the motor temperature is higher than the first preset temperature, the controller 11 will start the radiator 131 so that the coolant in the motor circuit is cooled by the radiator 131, thereby reducing the temperature of the motor 132. The controller 11 will also start the motor water pump 35.

[0054] The controller 11 will also send a motor heat dissipation instruction to the nine-way valve 31. After the nine-way valve 31 receives the motor heat dissipation instruction sent by the controller 11, it controls the position of the valve core by rotating the driving mechanism, so that the first interface pipe A is communicated with the ninth interface pipe I, making the second input pipe orifice and the output pipe orifice of the motor circuit 13 communicated, that is, the radiator 131 is communicated with the motor 132 through pipelines, forming a motor heat dissipation circuit corresponding to the motor heat dissipation mode.

[0055] In the motor cooling circuit, the coolant flows into the second input pipe orifice of the motor circuit from the ninth interface I of the nine-way valve and flows along the pipeline into the radiator 131. Since the radiator 131 has a heat dissipation effect, the coolant flowing out of the radiator 131 is cooled. The cooled coolant flows towards the motor 132. The coolant flowing through the motor 132 can take away the heat of the motor 132, causing the motor to cool down. At the same time, the coolant flowing out of the motor 132 is pressurized by the motor water pump 35 and then flows towards the first interface pipe A of the nine-way valve 31 and flows back to the ninth interface pipe I through the valve core of the nine-way valve 31. In this way, the coolant circulates in the motor cooling circuit, thereby using the coolant to take away the heat of the motor and using the radiator to cool the coolant, achieving the purpose of motor heat dissipation.

[0056] In some embodiments, the battery circuit 14 includes: a battery 141. The battery circuit 14 can be used to cool or heat the battery 141 through the coolant in the circuit.

[0057] The input pipe orifice of the battery water pump 34 is connected to the second interface pipe B, the output pipe orifice of the battery water pump 34 is connected to the input pipe orifice of the battery 141, and the output pipe orifice of the battery 141 is connected to the eighth interface pipe H.

[0058] It should be noted that the input pipe orifice of the battery 141 serves as the input pipe orifice of the battery circuit 14, and the output pipe orifice of the battery 141 serves as the output pipe orifice of the battery circuit 14.

[0059] In some embodiments, the control instruction includes: a battery non-cooling instruction. The battery non-cooling instruction can be an instruction that the battery temperature is within the normal operating temperature range and no additional cooling is required, that is, an instruction for controlling the integrated thermal management system to implement the battery non-cooling mode in the thermal management mode.

[0060] The controller 11 is configured to start the battery water pump and send a battery non-cooling instruction to the nine-way valve 31 when the battery temperature is not higher than the second preset temperature.

[0061] The nine-way valve 31 is configured to control the driving mechanism to drive the valve core to rotate according to the battery non-cooling instruction, connect the second interface pipe B and the eighth interface pipe H, so that the input pipe orifice of the battery circuit 14 is connected to the output pipe orifice of the battery circuit 14, forming a battery non-cooling circuit corresponding to the battery non-cooling mode.

[0062] The battery temperature involved in the 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.

[0063] In an embodiment of the present invention, the controller 11 determines whether the battery temperature is higher than a second preset temperature. When the battery temperature is not higher than the second preset temperature, the controller 11 starts the battery water pump 34 and sends a battery non-cooling instruction to the nine-way valve 31.

[0064] After receiving the battery non-cooling instruction sent by the controller 11, the nine-way valve 31 controls the position of the valve core by rotating the driving mechanism, so that the second interface pipe B is connected to the eighth interface pipe H, and the input pipe orifice and the output pipe orifice of the battery circuit 14 are connected to form a battery non-cooling circuit corresponding to the battery non-cooling mode.

[0065] In the battery non-cooling circuit, the coolant flows from the second interface pipe B to the battery water pump 34, and after being pressurized by the battery water pump 34, it flows to the battery 141. The coolant flowing out of the battery 141 flows through the pipeline to the eighth interface pipe H of the nine-way valve 31 and flows back to the second interface pipe B through the valve core. In this way, the battery non-cooling circuit allows the heat generated by the battery during operation to be dissipated into the environment through natural heat dissipation without the intervention of additional cooling devices.

[0066] In some embodiments, the control instruction includes: a first battery heat dissipation instruction. The first battery heat dissipation cooling instruction can be an instruction that when the battery temperature exceeds the normal operating temperature, heat dissipation through the radiator can meet the battery cooling requirement, that is, an instruction to control the integrated thermal management system to implement the first battery heat dissipation mode in the thermal management mode.

[0067] The controller 11 is configured to start the motor water pump 35, the battery water pump 34 and the radiator 131, and send a first battery heat dissipation instruction to the nine-way valve 31 when the battery temperature is higher than the second preset temperature and not higher than the third preset temperature.

[0068] The nine-way valve 31 is configured to control the driving mechanism to drive the valve core to rotate according to the first battery heat dissipation cooling instruction, connect the first interface pipe A and the second interface pipe B, and connect the eighth interface pipe H and the ninth interface pipe I, so that the battery circuit 14 is connected to the second input pipe orifice and the output pipe orifice of the motor circuit 13 to form a first battery heat dissipation circuit corresponding to the first battery heat dissipation mode.

[0069] The third preset temperature involved in the embodiment of the present invention 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.

[0070] It should be noted that in the battery heat dissipation mode, the motor temperature is in a normal temperature state, and there is no need for radiator heat dissipation or the motor does not work.

[0071] In an embodiment of the present invention, 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 motor water pump 35, the battery water pump 34, and the radiator 131 are started.

[0072] The controller 11 will also send a first battery heat dissipation instruction to the nine-way valve 31. After receiving the first battery heat dissipation instruction sent by the controller 11, the nine-way valve 31 controls the position of the valve core by rotating the driving mechanism, so that the first interface pipe A is connected to the second interface pipe B, and the eighth interface pipe H is connected to the ninth interface pipe I, so that the input pipe orifice of the battery circuit 14 is connected to the output pipe orifice of the motor circuit 13, and the output pipe orifice of the battery circuit 14 is connected to the second input pipe orifice of the motor circuit 13, that is, the battery circuit 14 is connected to the circuit where the radiator 131 is located, forming a first battery heat dissipation circuit corresponding to the first battery heat dissipation mode.

[0073] In the first battery heat dissipation circuit, the coolant flowing out of the second interface pipe B of the nine-way valve 31 flows to the battery water pump 34, and after being pressurized by the battery water pump 34, it flows to the battery 141. The coolant flowing out of the battery 141 can take away the heat of the battery and flow to the eighth interface pipe H of the nine-way valve 31 through the pipeline. The coolant flows from the eighth interface pipe H to the ninth interface pipe I through the valve core. The coolant flowing out of the ninth interface pipe I flows into the second input pipe orifice of the motor circuit 13 and flows into the radiator 131 along the pipeline. Since the radiator 131 has a heat dissipation effect, the coolant flowing out of the radiator 131 is cooled. The cooled coolant flows to the motor 132, and the coolant flowing out of the motor 132 is pressurized by the motor water pump 35 and flows to the first interface pipe A of the nine-way valve and flows back to the second interface pipe B through the valve core. In this way, the coolant circulates in the first battery heat dissipation circuit, so as to use the coolant to take away the battery heat and use the radiator to cool the coolant, achieving the purpose of battery heat dissipation.

[0074] Such as Figure 4 The heat exchange circuit 16 includes a pipeline connecting the second pipe orifice of the heat exchanger 33 and the fourth interface pipe D of the nine-way valve 31. The pipeline orifice connected to the second pipe orifice of the heat exchanger 33 can be used as the input pipe orifice of the heat exchange circuit 16, and the pipeline orifice connected to the fourth interface pipe D of the nine-way valve 31 is used as the output pipe orifice of the heat exchange circuit 16.

[0075] In some embodiments, the control instruction may include a second battery heat dissipation instruction. Similar to the first battery heat dissipation cooling instruction, the second battery heat dissipation instruction may be an instruction that when the battery temperature exceeds the normal operating temperature, heat dissipation through the radiator can meet the battery cooling requirement, that is, an instruction to control the integrated thermal management system to implement the second battery heat dissipation mode in the thermal management mode.

[0076] It should be noted that the battery heat dissipation effect achieved by the second battery heat dissipation instruction is better than that achieved by the first battery heat dissipation instruction. The first battery heat dissipation instruction and the second heat dissipation instruction can be switched according to user settings.

[0077] The controller 11 is configured to start the motor water pump 35, the battery water pump 34, and the radiator 131, and send a second battery heat dissipation cooling instruction to the nine-way valve 31 when the battery temperature is higher than the second preset temperature and not higher than the third preset temperature.

[0078] The nine-way valve 31 is configured to control the drive mechanism to drive the valve core to rotate according to the second battery heat dissipation cooling instruction, connect the first interface pipe A to the third interface pipe C, connect the fourth interface pipe D to the second interface pipe B, and connect the eighth interface pipe G to the ninth interface pipe I, so that the battery circuit 14, the heat exchange circuit 16 are connected to the second input pipe orifice and the output pipe orifice of the motor circuit 13, forming a second battery heat dissipation circuit corresponding to the second battery heat dissipation mode.

[0079] In an embodiment of the present invention, 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 motor water pump 35, the battery water pump 34, and the radiator 131 are started.

[0080] The controller 11 will also send a second battery heat dissipation instruction to the nine-way valve 31. After receiving the second battery heat dissipation instruction sent by the controller 11, the nine-way valve 31 controls the position of the valve core by rotating the drive mechanism, connects the first interface pipe A to the third interface pipe C, connects the fourth interface pipe D to the second interface pipe B, and connects the eighth interface pipe G to the ninth interface pipe I, so that the output pipe orifice of the motor circuit 13 is connected to the input pipe orifice of the heat exchange circuit 16, the output pipe orifice of the heat exchange circuit 16 is connected to the input pipe orifice of the battery circuit 14, and the input pipe orifice of the battery circuit 14 is connected to the second input pipe orifice of the motor circuit 13, that is, the battery circuit 14 is connected to the circuit where the radiator 131 is located through the heat exchange circuit 16, forming a second battery heat dissipation circuit corresponding to the second battery heat dissipation mode.

[0081] In the second battery heat dissipation loop, the coolant flowing out from the second interface pipe B of the nine-way valve 31 flows towards the battery water pump 34, and after being pressurized by the battery water pump 34, it flows towards the battery 141. The coolant flowing out from the battery 141 can carry away the heat of the battery and flow through the pipeline towards the eighth interface pipe H of the nine-way valve 31. The coolant flows from the eighth interface pipe H to the ninth interface pipe I through the valve core. The coolant flowing out from the ninth interface pipe I flows into the second input pipe orifice of the motor loop 13 and flows into the radiator 131 along the pipeline. Since the radiator 131 has a heat dissipation effect, the coolant flowing out from the radiator 131 cools down. The cooled coolant flows towards the motor 132, and the coolant flowing out from the motor 132 is pressurized by the motor water pump 35 and flows towards the first interface pipe A of the nine-way valve and flows through the valve core towards the third interface pipe C. The coolant flowing out from the third interface pipe C flows into the first pipe orifice of the heat exchanger 33 and flows out from the second pipe orifice of the heat exchanger 33. The coolant flowing out from the heat exchanger 33 flows through the pipeline towards the fourth pipe orifice D of the nine-way valve 31 and flows back to the second interface pipe B through the valve core. In this way, the coolant circulates in the second battery heat dissipation loop, thereby using the coolant to carry away the battery heat, using the radiator to cool down the coolant, and using the heat exchange loop to automatically dissipate heat from the cooled coolant again, achieving the purpose of efficient battery heat dissipation.

[0082] In addition, in order to accelerate the battery heat dissipation speed, when the controller 11 starts the motor water pump 35, the battery water pump 34 and the radiator 131, it can also control the air-conditioning loop 17 to enter the refrigeration mode and the expansion valve 37 to open. In the second battery heat dissipation loop, when the coolant flows through the heat exchange loop 16, the coolant exchanges heat (heat and cold) with the air-conditioning loop 17 in the heat exchanger 33, so that the coolant cools down again, and thus the temperature of the coolant flowing into the battery loop 14 is relatively low, capable of achieving the purpose of quickly reducing the battery temperature.

[0083] In some embodiments, the heating loop 15 is used to heat the coolant in the loop. As Figure 4 shown, the heating loop 15 includes: namely, the water heater 151 and the warm air core 152. The water heater 151 can be a device capable of quickly heating the liquid. The warm air core 152 is used to generate warm air according to the coolant in the loop and introduce it into the passenger compartment.

[0084] The input pipe orifice of the water heater 151 serves as the input pipe orifice of the heating loop 14, and the output pipe orifice of the warm air core 152 serves as the output pipe orifice of the heating loop 14.

[0085] The seventh interface pipe G of the nine-way valve 31 is connected to the first pipe orifice of the liquid-cooled condenser 32. The second pipe orifice of the liquid-cooled condenser 32 is connected to the input pipe orifice of the instant water heater 151. The output pipe orifice of the instant water heater 151 is connected to the input pipe orifice of the heater core 152. The output pipe orifice of the heater core 152 is connected to the sixth interface E pipe of the nine-way valve. In this way, in the heating circuit, the instant water heater and / or the liquid-cooled condenser can be used to heat the coolant in the circuit.

[0086] In some embodiments, the control instruction includes: a battery heating instruction. The battery heating instruction can be an instruction for the battery to be in a low-temperature state and requiring an additional heating device for heating, that is, an instruction for controlling the integrated thermal management system to implement the battery heating mode in the thermal management mode.

[0087] The controller 11 is configured to start the instant water heater 151, the battery water pump 34, and the heater water pump 35 when the battery temperature is lower than the fourth preset temperature, and send the battery heating instruction to the nine-way valve 31.

[0088] The nine-way valve 31 is configured to control the driving mechanism to drive the valve core to rotate according to the battery heating instruction, connect the second interface pipe B and the sixth interface pipe F, and connect the eighth interface pipe H and the seventh interface pipe G, so that the battery circuit 14 is connected to the heating circuit 15 to form a battery heating circuit corresponding to the battery heating mode.

[0089] The fourth preset temperature involved in the embodiment of the present invention 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 15 degrees.

[0090] In the embodiment of the present invention, after the controller determines that the battery temperature is lower than the second preset temperature, it 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 instant water heater 151, the battery water pump 34, and the heater water pump 35.

[0091] The controller 11 will send a battery heating instruction to the nine-way valve 31. After receiving the battery heating instruction sent by the controller 11, the nine-way valve 31 controls the position of the valve core by rotating the driving mechanism, connects the second interface pipe B and the sixth interface pipe F, and connects the eighth interface pipe H and the seventh interface pipe G, so that the output pipe orifice of the battery circuit 14 is connected to the input pipe orifice of the heating circuit 15, and the input pipe orifice of the battery circuit 14 is connected to the output pipe orifice of the heating circuit 15, forming a battery heating circuit corresponding to the battery heating mode.

[0092] In the battery heating circuit, the low-temperature coolant flowing out from the seventh interface pipe G of the nine-way valve 31 flows through the liquid-cooled condenser 32 and then flows towards the heater water pump 36. After being pressurized by the heater water pump 36, the coolant flows towards the instant water heater 151. After being heated by the instant water heater 151, the temperature of the coolant rises. The heated coolant flows through the heater core 152 and then flows through the pipeline towards the sixth interface pipe F of the nine-way valve 31. The coolant flowing in from the sixth interface pipe F flows through the valve core towards the second interface pipe B. The high-temperature coolant flowing out from the second interface pipe B is pressurized by the battery water pump 34 and then flows towards the battery 141, causing the temperature of the battery 141 to rise. The coolant flowing out from the battery 141 flows through the pipeline towards the eighth interface pipe H of the nine-way valve and then flows back to the seventh interface pipe G through the valve core.

[0093] In this way, in the battery heating circuit, the coolant is heated by the instant water heater, and the heated coolant provides the required heat for the battery, raising the temperature of the battery. Thus, when the battery temperature is too low, the battery can be heated to ensure that the battery can operate under safe temperature conditions.

[0094] In some embodiments, in the battery heating circuit, if heat is generated in the air-conditioning circuit 17, the low-temperature coolant flowing out from the seventh interface pipe G of the nine-way valve 31 exchanges heat with the air-conditioning circuit 17 in the liquid-cooled condenser 32 to raise the temperature of the coolant.

[0095] In addition, if the heat of the heated coolant is sufficient to raise the temperature of the battery above the second preset temperature, the instant water heater 151 may not be started.

[0096] In some embodiments, the control instruction includes: the first battery waste heat recovery instruction. The first battery waste heat recovery instruction can be used to effectively recover the battery waste heat and is used for heating the passenger compartment, that is, the instruction to control the integrated thermal management system to implement the first battery waste heat recovery mode in the thermal management mode.

[0097] The controller 11 is configured to start the battery water pump 34, the heater water pump 36, and the heater core 152 and send the first battery waste heat recovery instruction to the nine-way valve 31 when obtaining a passenger compartment heating request and the battery temperature is higher than the third preset temperature.

[0098] The nine-way valve 31 is configured to control the driving mechanism to drive the valve core to rotate according to the first battery waste heat recovery instruction, connect the second interface pipe B and the sixth interface pipe F, and connect the eighth interface pipe H and the seventh interface pipe G, so that the battery circuit 14 is connected to the heating circuit 15 to form a first battery waste heat recovery circuit corresponding to the first battery waste heat recovery mode.

[0099] The passenger compartment heating request involved in the embodiment of the present invention can be generated by a user operation on the control panel or automatically generated when the temperature of the passenger compartment 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.

[0100] In one embodiment of the present invention, after receiving a passenger compartment 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 passenger compartment, it will start the battery water pump 34, the heater water pump 36 and the heater core 152.

[0101] The controller 11 sends a first battery waste heat recovery instruction to the nine-way valve 31. After receiving the first battery waste heat recovery instruction sent by the controller 11, the nine-way valve 31 controls the valve core position by rotating the driving mechanism, so that the second interface pipe B is connected to the sixth interface pipe F, and the eighth interface pipe H is connected to the seventh interface pipe G, so that the output pipe port of the battery circuit 14 is connected to the input pipe port of the heating circuit 15, and the input pipe port of the battery circuit 14 is connected to the output pipe port of the heating circuit 15, forming a first battery waste heat recovery circuit corresponding to the first battery waste heat recovery mode.

[0102] In the first battery waste heat recovery loop, the coolant flowing out of the second interface pipe B is pressurized by the battery water pump 34 and flows to the battery 141. Since the coolant takes away the heat of the battery and heats up, the battery 141 cools down and the coolant heats up. The heated coolant flows to the eighth interface pipe H of the nine-way valve through the pipeline, and flows to the seventh interface pipe G through the valve core. The coolant flowing out of the seventh interface pipe G of the nine-way valve 31 flows through the liquid-cooled condenser 32 and flows to the warm air water pump 36. The coolant is pressurized by the warm air water pump 36 and flows through the water heater 151 to the warm air core 152. When the coolant flows through the warm air core 152, the warm air core 152 generates hot air and sends it into the passenger compartment. The coolant flowing out of the warm air core 152 cools down and flows to the sixth interface pipe F of the nine-way valve 31 through the pipeline. The coolant flowing in from the sixth interface pipe F flows back to the second interface pipe B through the valve core.

[0103] 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 152, thereby achieving the purpose of recovering battery heat and heating the passenger compartment.

[0104] 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 compartment, that is, to control the integrated thermal management system to implement the first motor waste heat recovery mode in the thermal management mode.

[0105] A controller, configured to start a motor water pump 35, a heater water pump 36 and a heater core 152 when receiving an occupant compartment heating request and the motor temperature is higher than a fifth preset temperature, and send a first motor waste heat recovery instruction to a nine-way valve 31.

[0106] The nine-way valve 31 is configured to control a driving mechanism to drive a valve core to rotate according to the first motor waste heat recovery instruction, connect a first interface pipe A and a seventh interface pipe G, and connect a sixth interface pipe F and a fifth interface pipe E, so that a battery circuit is respectively connected to a first input pipe orifice of a motor circuit 13 and an output pipe orifice of the motor circuit 13, forming a first motor waste heat recovery circuit corresponding to a first motor waste heat recovery mode.

[0107] The fifth preset temperature involved in the embodiment of the present invention is higher than the first preset temperature. The fifth 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. The motor temperature being higher than the fifth preset temperature indicates that the motor is in a relatively high temperature state and there is excess heat.

[0108] In an embodiment of the present invention, after the controller 11 receives an occupant compartment heating request and determines that the motor temperature is higher than the fifth preset temperature, that is, when there is excess heat in the motor, it will start the motor water pump 35, the heater water pump 36 and the heater core 152.

[0109] The controller 11 sends a first motor waste heat recovery instruction to the nine-way valve 31. After receiving the first motor waste heat recovery instruction, the nine-way valve 31 controls the position of the valve core by rotating the driving mechanism, connects the first interface pipe A and the seventh interface pipe G, and connects the sixth interface pipe F and the fifth interface pipe E, so that the output pipe orifice of the motor circuit 13 is connected to the input pipe orifice of the heating circuit 15, and the first input pipe orifice of the motor circuit 14 is connected to the output pipe orifice of the heating circuit 15, forming a first motor waste heat recovery circuit corresponding to the first motor waste heat recovery mode.

[0110] In the first motor waste heat recovery circuit, the coolant flowing out of the fifth interface pipe E passes through the motor 132. Since the coolant takes away the heat of the motor and warms up, the motor 132 cools down and the coolant warms up. The warmed coolant flows through a pipeline to the motor water pump 35, is pressurized by the motor water pump 35, then flows to the first interface pipe A of the nine-way valve, and flows through the valve core to the seventh interface pipe G. The coolant flowing out of the seventh interface pipe G of the nine-way valve 31 flows through the liquid-cooled condenser 32 and then flows to the heater water pump 36. The coolant is pressurized by the heater water pump 36 and then flows through the instant water heater 151 to the heater core 152. When the coolant flows through the heater core 152, the heater core 152 generates hot air and sends it into the passenger compartment. The coolant flowing out of the heater core 152 cools down and flows through a pipeline to the sixth interface pipe F of the nine-way valve 31. The coolant flowing in from the sixth interface pipe F flows back to the fifth interface pipe E through the valve core.

[0111] In this way, the coolant takes away the heat of the motor and provides heat to the heater core in the heating circuit 15, thereby achieving the purpose of recovering the motor heat and heating the passenger compartment.

[0112] In some embodiments, the control instruction includes: a second motor waste heat recovery instruction. The second motor waste heat recovery instruction can be an instruction to heat the battery using the waste heat of the motor, that is, an instruction to control the integrated thermal management system to implement the second motor waste heat recovery mode in the thermal management mode.

[0113] The controller 11 is configured to start the motor water pump 35 and the battery water pump 34 and send a second motor waste heat recovery instruction to the nine-way valve 31 when the motor temperature is higher than the fifth preset temperature and the battery temperature is lower than the fourth preset temperature.

[0114] The nine-way valve 31 is configured to control the driving mechanism to drive the valve core to rotate according to the second motor waste heat recovery instruction, connect the first interface pipe A and the second interface pipe B, and connect the eighth interface pipe H and the fifth interface pipe E, so that the battery circuit 14 is respectively connected to the first input pipe orifice of the motor circuit 13 and the output pipe orifice of the motor circuit 13, forming a second motor waste heat recovery circuit corresponding to the second motor waste heat recovery mode.

[0115] That the battery temperature involved in the embodiment of the present invention is 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, when the motor has excess heat and the battery needs to be heated, the motor water pump 35 and the battery water pump 34 are started, and a second motor waste heat recovery instruction is sent to the nine-way valve 31.

[0116] After the nine-way valve 31 receives the second motor waste heat recovery instruction sent by the controller 11, it controls the position of the valve core by the rotation of the driving mechanism, connects the first interface pipe A to the second interface pipe B, and connects the eighth interface pipe H to the fifth interface pipe E, so that the input pipe orifice of the battery circuit 14 is connected to the output pipe orifice of the motor circuit 13, and the output pipe orifice of the battery circuit 14 is connected to the first input pipe orifice of the motor circuit 13, and uses the waste heat of the motor 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.

[0117] In the second motor waste heat recovery circuit, the coolant flows into the first input pipe orifice of the motor circuit 13 from the fifth interface pipe E of the nine-way valve 31, and flows through the pipeline to the motor 132. The coolant flowing through the motor 132 takes away the heat of the motor and heats up, flows through the pipeline to the motor water pump 35, and after being pressurized by the motor water pump 35, flows into the first interface pipe A of the nine-way valve 31 and flows through the valve core of the nine-way valve 31 to the second interface pipe B. The heated coolant flows from the second interface pipe B to the battery water pump 34, and after being pressurized by the battery water pump 34, flows to the battery 141 to heat the battery 141. The coolant flowing out of the battery 141 cools down, flows through the pipeline to the eighth interface pipe H of the nine-way valve 31, and flows back to the fifth interface pipe E through the valve core.

[0118] In this way, the coolant takes away the heat of the motor and flows from the motor circuit to the battery circuit, heats the battery, increases the battery temperature, and decreases the motor temperature, thereby achieving the purpose of recovering the motor heat and heating the battery.

[0119] In some embodiments, the control instruction includes: a third motor waste heat recovery instruction. The third motor waste heat recovery instruction can be used to effectively recover the waste heat of the motor and is used for heating the battery and the occupant compartment, that is, the instruction to control the integrated thermal management system to implement the third motor waste heat recovery mode in the thermal management mode.

[0120] The controller 11 is configured to start the motor water pump 35, the battery water pump 34, the heater core water pump 36, the heater core 152 and the water heater 151, and send a third motor waste heat recovery instruction to the nine-way valve 31 when obtaining an occupant compartment heating request, and the motor temperature is higher than the fifth preset temperature and the battery temperature is lower than the fourth preset temperature.

[0121] The nine-way valve 31 is used to control the driving mechanism to drive the valve core to rotate according to the third motor waste heat recovery instruction, connect the first interface pipe A and the second interface pipe B, connect the eighth interface pipe H and the seventh interface pipe G, connect the sixth interface pipe F and the fifth interface pipe E, or connect the first interface pipe A and the seventh interface pipe G, connect the sixth interface pipe F and the second interface pipe B, and connect the eighth interface pipe H and the fifth interface pipe E, so as to connect the motor circuit 13, the battery circuit 14, and the heating circuit 15 to form a third motor waste heat recovery circuit corresponding to the third motor waste heat recovery mode.

[0122] In an embodiment of the present invention, after the controller 11 receives the occupant compartment heating request and 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 not sufficient to provide heat for the occupant compartment and the battery at the same time, the motor water pump 35, the battery water pump 34, the heater core water pump 36, the heater core 152, and the water heater 151 are started.

[0123] It should be noted that if the motor waste heat is sufficient to provide heat for the occupant compartment and the battery at the same time, the water heater 151 may not be started.

[0124] Since the motor heat is used to heat the occupant compartment and the battery at the same time, the motor circuit 13, the battery circuit 14, and the heating circuit 15 need to be connected. Therefore, according to the connection relationship of each circuit of the integrated thermal management system 10, two third motor waste heat recovery circuits can be formed.

[0125] After the nine-way valve 31 receives the third motor waste heat recovery instruction sent by the controller 11, it controls the position of the valve core by rotating the driving mechanism, connects the first interface pipe A and the second interface pipe B, connects the eighth interface pipe H and the seventh interface pipe G, connects the sixth interface pipe F and the fifth interface pipe E, so that the output pipe orifice of the motor circuit 13 is connected to the input pipe orifice of the battery circuit 14, the output pipe orifice of the battery circuit 14 is connected to the input pipe orifice of the heating circuit 15, and the output pipe orifice of the heating circuit 15 is connected to the first input pipe orifice of the motor circuit 13, thereby forming the first third motor waste heat recovery circuit.

[0126] In the first waste heat recovery circuit of the third motor, the coolant flowing out of the fifth interface pipe E passes through the motor 132. Since the coolant takes away the heat of the motor and warms up, the motor 132 cools down and the coolant warms up. The warmed coolant flows through the pipeline to the motor water pump 35, is pressurized by the motor water pump 35 and then flows to the first interface pipe A of the nine-way valve, and flows to the second interface pipe B through the valve core. The warmed coolant flows from the second interface pipe B to the battery water pump 34, is pressurized by the battery water pump 34 and then flows to the battery 141 to heat the battery 141. The coolant flowing out of the battery 141 flows through the pipeline to the eighth interface pipe H of the nine-way valve 31 and flows to the seventh interface pipe G through the valve core. The coolant flowing out of the seventh interface pipe G of the nine-way valve 31 flows through the liquid-cooled condenser 32 and flows to the warm water pump 36. After the coolant is pressurized by the warm water pump 36 and flows through the instant water heater 151 and is heated by the instant water heater 151 (or not heated by the instant water heater 151), it flows to the warm air core 152. When the coolant flows through the warm air core 152, the warm air core 152 generates hot air and sends it into the passenger compartment. The coolant flowing out of the warm air core 152 cools down and flows through the pipeline to the sixth interface pipe F of the nine-way valve 31. The coolant flowing into the sixth interface pipe F flows back to the fifth interface pipe E through the valve core.

[0127] Alternatively, after receiving the third motor waste heat recovery instruction sent by the controller 11, the nine-way valve 31 controls the position of the valve core by the rotation of the driving mechanism, connects the first interface pipe A with the seventh interface pipe G, connects the sixth interface pipe F with the second interface pipe B, and connects the eighth interface pipe H with the fifth interface pipe E, so that the output pipe orifice of the motor circuit 13 is connected with the input pipe orifice of the heating circuit 15, the output pipe orifice of the heating circuit 15 is connected with the input pipe orifice of the battery circuit 14, and the output pipe orifice of the battery circuit 14 is connected with the first input pipe orifice of the motor circuit 13, thereby forming a second waste heat recovery circuit of the third motor.

[0128] In the second third-motor waste heat recovery loop, the coolant flowing out from the fifth interface pipe E passes through the motor 132. Since the coolant takes away the heat of the motor and heats up, the motor 132 cools down while the coolant heats up. The heated coolant flows through a pipeline to the motor water pump 35, is pressurized by the motor water pump 35, then flows to the first interface pipe A of the nine-way valve, and flows to the seventh interface pipe G through the valve core. The coolant flowing out from the seventh interface pipe G of the nine-way valve 31 flows through the liquid-cooled condenser 32 and then flows to the heater water pump 36. After being pressurized by the heater water pump 36, the coolant flows through the instant water heater 151, and after being heated by the instant water heater 151 (or without being heated by the instant water heater 151), when it flows into the heater core 152, the heater core 152 generates hot air and sends it into the passenger compartment. The coolant flowing out from the heater core 152 flows through a pipeline to the sixth interface pipe F of the nine-way valve 31, and flows to the second interface pipe B through the valve core. The coolant flows from the second interface pipe B to the battery water pump 34, is pressurized by the battery water pump 34, then flows to the battery 141 to heat the battery 141. The coolant flowing out from the battery 141 flows through a pipeline to the eighth interface pipe H of the nine-way valve 31, and flows back to the fifth interface pipe E through the valve core.

[0129] It should be noted that the type of the third-motor waste heat recovery loop formed by the third-motor waste heat recovery instruction can be set according to user needs.

[0130] In this way, the coolant takes away the heat of the motor, flows from the motor loop to the battery loop and the heating loop, heats the battery and provides heat for the heater core, so as to achieve the purpose of recovering the heat of the motor and jointly heating the passenger compartment and the battery.

[0131] In some embodiments, the control instruction includes: a fourth-motor waste heat recovery instruction. The fourth-motor waste heat recovery instruction is the same as the third-motor waste heat instruction, and is also an instruction used to effectively recover the waste heat of the motor and used for heating the battery and the passenger compartment, that is, an instruction to control the integrated thermal management system to implement the fourth-motor waste heat recovery mode in the thermal management mode.

[0132] It should be noted that the difference between the fourth-motor waste heat recovery instruction and the third-motor waste heat instruction is that the formed loops are different. The fourth-motor waste heat recovery instruction and the third-motor waste heat instruction can be switched according to user settings.

[0133] The controller 11 is configured to, when obtaining a passenger compartment heating request, and when the motor temperature is higher than the fifth preset temperature and the battery temperature is lower than the fourth preset temperature, start the motor water pump 35, the battery water pump 34, the heater water pump 36, the heater core 152 and the instant water heater 151, and send a fourth-motor waste heat recovery instruction to the nine-way valve.

[0134] The nine-way valve 31 is used to control the driving mechanism to drive the valve core to rotate according to the fourth motor waste heat recovery instruction, connect the first interface pipe A and the second interface pipe B, connect the eighth interface pipe B and the third interface pipe C, connect the fourth interface pipe D and the seventh interface pipe G, and connect the sixth interface pipe F and the fifth interface pipe E, or connect the first interface pipe A and the second interface pipe B, connect the eighth interface pipe H and the seventh interface pipe G, connect the sixth interface pipe F and the third interface pipe C, and connect the fourth interface pipe D and the fifth interface pipe E, so as to connect the motor loop 13, the battery loop 14, the heat exchange loop 16 and the heating loop 15 to form a fourth motor waste heat recovery loop corresponding to the fourth motor waste heat recovery mode.

[0135] In an embodiment of the present invention, after the controller 11 receives the occupant compartment heating request and 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 not enough to provide heat for the occupant compartment and the battery at the same time, the motor water pump 35, the battery water pump 34, the heater water pump 36, the heater core 152 and the water heater 151 are started.

[0136] It should be noted that if the motor waste heat is enough to provide heat for the occupant compartment and the battery at the same time, the water heater 151 may not be started.

[0137] Since the motor heat is used to heat the occupant compartment and the battery at the same time, therefore, the motor loop 13, the battery loop 14 and the heating loop 15, these three loops can be connected through the heat exchange loop 16 in addition to being directly connected. Thus, according to the connection relationship of each loop of the integrated thermal management system 10, two fourth motor waste heat recovery loops can be formed.

[0138] After the nine-way valve 31 receives the fourth motor waste heat recovery instruction sent by the controller 11, it controls the position of the valve core by the rotation of the driving mechanism, makes the first interface pipe A communicate with the second interface pipe B, makes the eighth interface pipe B communicate with the third interface pipe C, makes the fourth interface pipe D communicate with the seventh interface pipe G, and makes the sixth interface pipe F communicate with the fifth interface pipe E, so that the output pipe orifice of the motor loop 13 is connected to the input pipe orifice of the battery loop 14, the output pipe orifice of the battery loop 14 is connected to the input pipe orifice of the heat exchange loop 16, the input pipe orifice of the heat exchange loop 16 is connected to the input pipe orifice of the heating loop 15, and the output pipe orifice of the heating loop 15 is connected to the first input pipe orifice of the motor loop 13, thereby forming the first fourth motor waste heat recovery loop.

[0139] In the first fourth-motor waste heat recovery loop, the coolant flowing out of the fifth interface pipe E passes through the motor 132. Since the coolant takes away the heat of the motor and warms up, the motor 132 cools down and the coolant warms up. The warmed coolant flows through a pipeline to the motor water pump 35, is pressurized by the motor water pump 35 and then flows to the first interface pipe A of the nine-way valve, and flows to the second interface pipe B through the valve core. The warmed coolant flows from the second interface pipe B to the battery water pump 34, is pressurized by the battery water pump 34 and then flows to the battery 141 to heat the battery 141. The coolant flowing out of the battery 141 flows through a pipeline to the eighth interface pipe H of the nine-way valve 31, and flows to the third interface pipe C through the valve core. The coolant flowing out of the third interface pipe C flows into the first pipe orifice of the heat exchanger 33 and flows out of the second pipe orifice of the heat exchanger 33. The coolant flowing out of the heat exchanger 33 flows through a pipeline to the fourth pipe orifice D of the nine-way valve 31, and flows to the seventh interface pipe G through the valve core. The coolant flowing out of the seventh interface pipe G of the nine-way valve 31 flows through the liquid-cooled condenser 32 and flows to the warm water pump 36. The coolant is pressurized by the warm water pump 36 and then flows through the instant water heater 151, and after being heated by the instant water heater 151, it flows to the warm air core 152. When the coolant flows through the warm air core 152, the warm air core 152 generates hot air and sends it into the passenger compartment. The coolant flowing out of the warm air core 152 cools down and flows through a pipeline to the sixth interface pipe F of the nine-way valve 31. The coolant flowing into the sixth interface pipe F flows back to the fifth interface pipe E through the valve core.

[0140] Alternatively, after receiving the fourth-motor waste heat recovery instruction sent by the controller 11, the nine-way valve 31 controls the position of the valve core by rotating the driving mechanism, connects the first interface pipe A with the second interface pipe B, connects the eighth interface pipe H with the seventh interface pipe G, connects the sixth interface pipe F with the third interface pipe C, and connects the fourth interface pipe D with the fifth interface pipe E, so that the output pipe orifice of the motor loop 13 is connected with the input pipe orifice of the battery loop 14, the output pipe orifice of the battery loop 14 is connected with the input pipe orifice of the heating loop 15, the output pipe orifice of the heating loop 15 is connected with the input pipe orifice of the heat exchange loop 16, and the input pipe orifice of the heat exchange loop 16 is connected with the first input pipe orifice of the motor loop 13, thereby forming a second fourth-motor waste heat recovery loop.

[0141] In the second fourth-motor waste heat recovery loop, the coolant flowing out from the fifth interface pipe E passes through the motor 132. Since the coolant takes away the heat of the motor and warms up, the motor 132 cools down while the coolant warms up. The warmed coolant flows through a pipeline to the motor water pump 35, is pressurized by the motor water pump 35, then flows to the first interface pipe A of the nine-way valve, and through the valve core to the second interface pipe B. The warmed coolant flows from the second interface pipe B to the battery water pump 34, is pressurized by the battery water pump 34, and then flows to the battery 141 to heat the battery 141. The coolant flowing out from the battery 141 passes through a pipeline to the eighth interface pipe H of the nine-way valve 31, and through the valve core to the seventh interface pipe G. The coolant flowing out from the seventh interface pipe G of the nine-way valve 31 flows through the liquid-cooled condenser 32 and then flows to the warm water pump 36. The coolant is pressurized by the warm water pump 36, then flows through the instant water heater 151, and after being heated by the instant water heater 151, flows to the warm air core 152. When the coolant flows through the warm air core 152, the warm air core 152 generates hot air and sends it into the passenger compartment. The coolant flowing out from the warm air core 152 cools down and passes through a pipeline to the sixth interface pipe F of the nine-way valve 31. The coolant flowing in from the sixth interface pipe F passes through the valve core to the third interface pipe C. The coolant flowing out from the third interface pipe C flows into the first pipe orifice of the heat exchanger 33 and flows out from the second pipe orifice of the heat exchanger 33. The coolant flowing out from the heat exchanger 33 passes through a pipeline to the fourth pipe orifice D of the nine-way valve 31 and through the valve core flows back to the fifth interface pipe E.

[0142] It should be noted that in the second fourth-motor waste heat recovery loop, the temperature of the coolant can be reduced through the heat exchange loop 16 to prevent the temperature of the coolant entering the motor loop 13 from being too high.

[0143] In this way, the coolant takes away the heat of the motor and flows from the motor loop to the battery loop and the heating loop, heating the battery and providing heat for the warm air core, thus achieving the purpose of recovering the heat of the motor and jointly heating the passenger compartment and the battery.

[0144] After receiving a passenger compartment heating request, the integrated thermal management system 10 will switch to an appropriate thermal management loop according to the battery temperature to provide heat for the passenger compartment.

[0145] In some embodiments, the control instruction includes: a first passenger compartment heating instruction. The first passenger compartment heating instruction belongs to the passenger compartment heating instruction. The passenger compartment heating instruction can be an instruction for realizing the passenger compartment heating function, that is, an instruction for controlling the integrated thermal management system to implement the passenger compartment heating mode in the thermal management mode. Among them, the first passenger compartment heating instruction is used to indicate heating the passenger compartment by using the instant water heater 151.

[0146] The controller 11 is used to start the warm water pump 36 and the warm air core 152 when obtaining a passenger compartment heating request, and send a first passenger compartment heating instruction to the nine-way valve 31.

[0147] A nine-way valve 31 is used to control the driving mechanism to drive the valve core to rotate according to the first occupant compartment heating instruction, connect the sixth interface pipe G and the seventh interface pipe H, so that the heating circuit 15 is connected to form a first occupant compartment heating circuit corresponding to the first occupant compartment heating mode.

[0148] In an embodiment of the present invention, after receiving the occupant compartment heating request, the controller 11 determines whether the battery and the motor can provide heat for the occupant compartment. If not, the controller 11 starts the warm water pump 36 and the warm air core 152, and sends a first occupant compartment heating instruction to the nine-way valve 31.

[0149] After receiving the first occupant compartment heating instruction, the nine-way valve 31 controls the position of the valve core by the rotation of the driving mechanism, connects the sixth interface pipe G and the seventh interface pipe H, connects the input pipe orifice and the output pipe orifice of the heating circuit 15, and forms a first occupant compartment heating circuit corresponding to the first occupant compartment heating mode.

[0150] In the first occupant compartment heating circuit, the low-temperature coolant flowing out of the seventh interface pipe G of the nine-way valve 31 flows through the liquid-cooled condenser 32 and flows to the warm water pump 36. After the coolant is pressurized by the warm water pump 36, it flows to the instant water heater 151. After being heated by the instant water heater 151, the temperature of the coolant rises. The heated coolant flows to the warm air core 152, and the warm air core 152 generates hot air and sends it into the occupant compartment. The coolant flowing out of the warm air core 152 flows through the pipeline to the sixth interface pipe F of the nine-way valve 31 and flows back to the seventh interface pipe G through the valve core. In this way, the first occupant compartment heating circuit allows the heated coolant to transfer heat to the air in the occupant compartment through the warm air core 152, achieving the purpose of heating the occupant compartment.

[0151] In some embodiments, the control instruction includes: a second occupant compartment heating instruction. The second occupant compartment heating instruction also belongs to the occupant compartment heating instruction. The second occupant compartment heating instruction is used to indicate heating the occupant compartment using the waste heat of the battery.

[0152] The controller is used to start the warm water pump 35, the battery water pump 34 and the warm air core 152 when obtaining the occupant compartment heating request and the battery temperature is lower than the fourth preset temperature, and send a second occupant compartment heating instruction to the nine-way valve 31.

[0153] The nine-way valve 31 is used to control the driving mechanism to drive the valve core to rotate according to the second occupant compartment heating instruction, connect the second interface pipe B and the sixth interface pipe F, connect the eighth interface pipe H and the seventh interface pipe G, so that the heating circuit 15 is connected to the battery circuit 14 to form a second occupant compartment heating circuit corresponding to the second occupant compartment heating mode.

[0154] In an embodiment of the present invention, after the controller 11 receives a request for heating the passenger compartment, and determines that the battery temperature is lower than the fourth preset temperature, that is, the battery 141 is in a low-temperature state, the controller 11 controls the heating circuit to heat the battery circuit and the passenger compartment. Specifically, the controller 11 starts the instant water heater 151, the battery water pump 34, the heater water pump 35, and the heater core 152.

[0155] The controller 11 sends a second passenger compartment heating instruction to the nine-way valve 31. After receiving the second passenger compartment heating instruction sent by the controller 11, the nine-way valve 31 controls the position of the valve core by rotating the driving mechanism, so that the second interface pipe B is connected to the sixth interface pipe F, and the eighth interface pipe H is connected to the seventh interface pipe G, so that the output pipe orifice of the battery circuit 14 is connected to the input pipe orifice of the heating circuit 15, and the input pipe orifice of the battery circuit 14 is connected to the output pipe orifice of the heating circuit 15, forming a second passenger compartment heating circuit corresponding to the second passenger compartment heating mode.

[0156] In the second passenger compartment heating circuit, the low-temperature coolant flowing out of the seventh interface pipe G of the nine-way valve 31 flows through the liquid-cooled condenser 32 and flows towards the heater water pump 36. After the coolant is pressurized by the heater water pump 36, it flows towards the instant water heater 151. After being heated by the instant water heater 151, the temperature of the coolant rises. The heated coolant flows through the heater core 152, and the heater core 152 generates hot air and sends it into the passenger compartment. The coolant flowing out of the heater core 152 flows through the pipeline towards the sixth interface pipe F of the nine-way valve 31. The coolant flowing into the sixth interface pipe F flows through the valve core towards the second interface pipe B. The high-temperature coolant flowing out of the second interface pipe B is pressurized by the battery water pump 34 and flows towards the battery 141, and the temperature of the battery 141 rises. The coolant flowing out of the battery 141 flows through the pipeline towards the eighth interface pipe H of the nine-way valve and flows back to the seventh interface pipe G through the valve core.

[0157] In this way, the second passenger compartment heating circuit uses the instant water heater to heat the coolant, and at the same time, the heated coolant transfers heat to the air in the passenger compartment through the heater core 142 and heats the battery, so as to achieve the purpose of heating the battery and the passenger compartment.

[0158] As Figure 4 shown, the heat exchanger 33 is connected in series with the air-conditioning circuit 17, and the heat exchanger 33 can be connected in series with the expansion valve 37 connected to its third pipe orifice through its fourth pipe orifice in the air-conditioning circuit 17.

[0159] In some embodiments, the control instruction includes: a battery cooling instruction. The battery cooling instruction can be an instruction to achieve cooling when the battery temperature is high and the radiator is not sufficient to cool down, and the air-conditioning system needs to be used for cooling, that is, an instruction to control the integrated thermal management system to implement the battery cooling mode in the thermal management mode.

[0160] The controller 11 is configured to control the air-conditioning circuit 17 to enter the cooling mode when the battery temperature is higher than the third preset temperature, and send a battery cooling instruction to the nine-way valve 31.

[0161] The nine-way valve 31 is configured to control the driving mechanism to drive the valve core to rotate according to the battery cooling instruction, connect the second interface pipe B and the fourth interface pipe D, and connect the third interface pipe C and the eighth interface pipe H, so that the battery circuit 14 exchanges heat with the air-conditioning circuit 17 through the heat exchanger 33 to form a battery cooling circuit corresponding to the battery cooling mode.

[0162] In an embodiment of the present invention, the battery temperature being higher than the third preset temperature indicates that the battery is in a high-temperature state and the battery needs to be cooled.

[0163] After the controller 11 determines that the battery temperature is higher than the third preset temperature, it controls the air-conditioning circuit 17 to enter the cooling mode, opens the expansion valve 37, and sends a battery cooling instruction to the nine-way valve 31.

[0164] After receiving the battery cooling instruction sent by the controller 11, the nine-way valve 31 controls the position of the valve core by the rotation of the driving mechanism, connects the second interface pipe B and the fourth interface pipe D, and connects the third interface pipe C and the eighth interface pipe H, so that the output pipe orifice of the heat exchange circuit 16 is connected to the input pipe orifice of the battery circuit 14, and the input pipe orifice of the battery circuit 14 is connected to the input pipe orifice of the heat exchange circuit 16, forming a battery cooling circuit corresponding to the battery cooling mode.

[0165] In the battery cooling circuit, the coolant flowing out of the third interface pipe C flows into the first pipe orifice of the heat exchanger 33 and flows out of the second pipe orifice of the heat exchanger 33. The coolant 33 exchanges heat with the refrigerant in the air-conditioning circuit 17 in the heat exchanger 33, and the temperature of the coolant decreases. The low-temperature coolant flowing out of the heat exchanger 33 flows through the pipeline to the fourth pipe orifice D of the nine-way valve 31 and flows through the valve core to the second interface pipe B. The coolant flowing out of the second interface pipe B of the nine-way valve 31 flows to the battery water pump 34, and after being pressurized by the battery water pump 34, it flows to the battery 141. The coolant flowing out of the battery 141 can take away the heat of the battery and flow through the pipeline to the eighth interface pipe H of the nine-way valve 31. The coolant flows through the valve core from the eighth interface pipe H to the third interface pipe C.

[0166] In this way, the heat generated by the battery is transferred to the refrigerant in the air-conditioning circuit 17 through the heat exchanger 33, taken away by the refrigerant and discharged to the external environment, thereby realizing the cooling of the battery.

[0167] In some embodiments, the control instructions include: a second battery waste heat recovery instruction. The second battery waste heat recovery instruction can be used to effectively recover the waste heat of the battery and heat the passenger compartment through the air-conditioning circuit, that is, the instruction to control the integrated thermal management system to implement the second battery waste heat recovery mode in the thermal management mode.

[0168] The controller 11 is configured to start the battery water pump 34, control the air-conditioning circuit 17 to enter the heating mode, and send a second battery waste heat recovery instruction to the nine-way valve 31 when a passenger compartment heating request is obtained and the battery temperature is higher than the third preset temperature.

[0169] The nine-way valve 31 is configured to control the driving mechanism to drive the valve core to rotate according to the second battery waste heat recovery instruction, connect the second interface pipe B and the fourth interface pipe D, and connect the third interface pipe C and the eighth interface pipe H, so that the battery circuit 14 and the air-conditioning circuit 17 complete heat exchange to form a second battery waste heat recovery circuit corresponding to the second battery waste heat recovery mode.

[0170] In an embodiment of the present invention, the heating mode of the air-conditioning circuit 17 can be heating using battery waste heat. After the controller 11 receives a passenger compartment heating request, it determines that the battery temperature is higher than the third preset temperature, controls the air-conditioning circuit 17 to enter the heating mode, opens the expansion valve 37, and sends a second battery waste heat recovery instruction to the nine-way valve 31.

[0171] After receiving the second battery waste heat recovery instruction sent by the controller 11, the nine-way valve 31 controls the position of the valve core by rotating the driving mechanism, connects the second interface pipe B and the fourth interface pipe D, and connects the third interface pipe C and the eighth interface pipe H, so that the output pipe orifice of the heat exchange circuit 16 is connected to the input pipe orifice of the battery circuit 14, and the input pipe orifice of the battery circuit 14 is connected to the input pipe orifice of the heat exchange circuit 16, forming a second battery waste heat recovery circuit corresponding to the second battery waste heat recovery mode.

[0172] In the second battery waste heat recovery circuit, the coolant flowing out of the third interface pipe C flows into the first pipe orifice of the heat exchanger 33 and flows out of the second pipe orifice of the heat exchanger 33. The coolant 33 exchanges heat with the refrigerant of the air-conditioning circuit 17 in the heat exchanger 33, and the temperature of the coolant decreases. The low-temperature coolant flowing out of the heat exchanger 33 flows through the pipeline to the fourth pipe orifice D of the nine-way valve 31 and flows through the valve core to the second interface pipe B. The coolant flowing out of the second interface pipe B of the nine-way valve 31 flows to the battery water pump 34, is pressurized by the battery water pump 34 and then flows to the battery 141. The coolant flowing out of the battery 141 can take away the heat of the battery and flow through the pipeline to the eighth interface pipe H of the nine-way valve 31. The coolant flows through the valve core from the eighth interface pipe H to the third interface pipe C.

[0173] Meanwhile, the refrigerant in the air-conditioning circuit 17 absorbs the heat of the coolant in the heat exchanger 33 and warms up, and the warmed refrigerant provides heat to the passenger compartment.

[0174] In some embodiments, as Figure 4 shown, the air-conditioning circuit 17 may include a first expansion valve 171, a second expansion valve 172, a third expansion valve 173, a first stop valve 174, a second stop valve 175, a third stop valve 176, a fourth stop valve 177, an evaporator 178, an external heat exchanger 179, a built-in condenser 1710, a compressor 1711, and a gas-liquid separator 1712, etc. The connection relationships of the various components are as Figure 4 shown.

[0175] In the second battery waste heat recovery mode, the flow path of the refrigerant in the air-conditioning circuit is that the refrigerant flowing out of the heat exchanger 33 flows into the gas-liquid separator 1712, the refrigerant flowing out of the gas-liquid separator 1712 flows to the compressor 1711, after being compressed by the compressor 1711, it flows to the opened third stop valve 176, the refrigerant flowing out of the third stop valve 176 flows through the built-in condenser 1710, and the built-in condenser 1710 releases heat to provide warm air to the passenger compartment. The refrigerant flowing out of the built-in condenser flows back to the heat exchanger 33 through the first expansion valve 171 and the expansion valve 37.

[0176] As Figure 4 shown, the thermal management system further includes a fan FAN and a blower BLOW. Among them, the radiator 151, the external heat exchanger 179 are integrated with the fan FAN. The heater core 142, the evaporator 164, the built-in condenser 167, and the blower BLOW are integrated together. In this way, the system volume can be reduced.

[0177] In some embodiments, the nine-way valve 31 further includes an auxiliary interface pipe. The nine interface pipes include seven main interface pipes and two extended interface pipes. The valve core includes a first valve core and a second valve core, and the driving mechanism includes a first driving mechanism and a second driving mechanism.

[0178] The two extended interface pipes are communicated with the auxiliary interface pipe through the second valve core, and the seven main interface pipes and the auxiliary interface pipe are communicated through the first valve core.

[0179] The first driving mechanism is used to drive the first valve core to rotate 45 degrees so that the seven main interface pipes and the auxiliary interface pipe are communicated.

[0180] The second driving mechanism is used to drive the second valve core to rotate 120 degrees so that the two external interface pipes are communicated with the auxiliary interface pipe.

[0181] The seven main interface pipes are interface pipe 1 (i.e., the first interface pipe A), interface pipe 2 (i.e., the second interface pipe B), interface pipe 3 (i.e., the third interface pipe C), interface pipe 4 (i.e., the fourth interface pipe D), interface pipe 6 (i.e., the sixth interface pipe F), interface pipe 7 (i.e., the seventh interface pipe G), and interface pipe 8 (i.e., the eighth interface pipe H). The auxiliary interface pipe is interface pipe 5, and the two externally expandable interface pipes are interface pipe 5' (i.e., the fifth interface pipe E) and interface pipe 9 (i.e., the ninth interface pipe I).

[0182] The nine-way valve 31 has a total of 16 connection modes. Among them, the first driving mechanism driving the first valve core can enable 8 pipe connection modes between the seven main interface pipes and the auxiliary interface pipe, and the second driving mechanism driving the second valve core to rotate can enable 2 pipe connection modes between the auxiliary interface pipe and the two externally expandable interface pipes. Thus, the entire nine-way valve has 16 pipe connection modes.

[0183] The 8 pipe connection modes are shown in the following table.

[0184]

[0185] Figures 5 - 12 The system structure diagram showing the 8 pipe connection modes provided by an embodiment of the present invention Figures 5 to 12 The driving mechanism and valve core of the nine-way valve are not shown, and the air-conditioning circuit 17 is not shown either.

[0186] It should be noted that the heat management circuit involved in the embodiment of the present invention only needs to apply at most eight of the 16 connection modes of the nine-way valve, and the other connection modes reserve space and possibilities for the upgrade of the subsequent vehicle heat management architecture function.

[0187] Another aspect of the embodiment of the present invention provides a control method for an integrated heat management system, which is applied to any of the above-mentioned integrated heat management systems.

[0188] Another aspect of the embodiment of the present invention provides a vehicle Figure 13 The structure diagram of a vehicle provided by an embodiment of the present invention is shown, as Figure 13 shown, the vehicle 60 includes any of the above-mentioned integrated heat management systems 61.

[0189] It should be understood that the specific features, operations, and details described above regarding the method of the present invention can also be similarly applied to the devices and systems of the present invention, or vice versa. In addition, each step of the method of the present invention described above can be executed by the corresponding components or units of the device or system of the present invention.

[0190] It should be understood that each module / unit of the device of the present invention 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 in the form of hardware or firmware, or independent of the processor, and can also be stored in the memory of the electronic device in the form of software for the processor to call to execute the operations 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.

[0191] 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 as long as such a combination does not exist in contradiction.

[0192] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated thermal management system, characterized in that: include: A nine-way valve integrated module, a motor circuit, a battery circuit, a heating circuit, a heat exchange circuit and a controller; wherein the nine-way valve integrated module integrates: a nine-way valve, a liquid-cooled condenser connected to the nine-way valve, a heat exchanger, a battery water pump, a motor water pump and a heater water pump; 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 nine-way valve integrated module and the motor circuit, the heat exchange circuit, the heating circuit and the battery circuit; The nine-way valve comprises nine interface pipes, a driving mechanism and a valve core; the nine interface pipes are respectively connected to three pipe openings of the motor circuit, two pipe openings of the heating circuit, two pipe openings of the battery circuit and two pipe openings of the heat exchange circuit; The battery water pump is connected in series with the battery circuit, the motor water pump is connected in series with the motor circuit, the liquid cooling condenser and the warm air water pump are connected in series with the heating circuit, and the heat exchanger is connected in series with the heat exchange circuit; The nine-way valve 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 nine 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.

2. The system according to claim 1, characterized in that The nine interface pipes are respectively a first interface pipe, a second interface pipe, a third interface pipe, a fourth interface pipe, a fifth interface pipe, a sixth interface pipe, a seventh interface pipe, an eighth interface pipe and a ninth interface pipe; the nine interface pipes are respectively connected to three pipe openings of the motor circuit, two pipe openings of the heating circuit, two pipe openings of the battery circuit and two pipe openings of the heat exchange circuit, including: The first interface pipe is connected to the output pipe port of the motor circuit; The second interface pipe is connected to the input pipe port of the battery circuit; The third interface pipe is connected to the input pipe port of the heat exchange circuit; The fourth interface pipe is connected to the output pipe port of the heat exchange circuit; The fifth interface pipe is connected to the first input pipe port of the motor circuit; The sixth interface pipe is connected to the output pipe port of the heating circuit; The seventh interface pipe is connected to the input pipe port of the heating circuit; The eighth interface pipe is connected to the output pipe port of the battery circuit; The ninth interface pipe is connected to the second input pipe port of the motor circuit.

3. The system according to claim 2, characterized in that The motor circuit includes: a radiator and a motor; The input pipe opening of the motor is the first input pipe opening of the motor circuit, connected to the fifth interface pipe, and the output pipe opening of the motor is the output pipe opening of the motor circuit, connected to the first interface pipe via the motor water pump; The input pipe opening of the radiator is the second input pipe opening of the motor circuit, which is connected to the ninth interface pipe, and the output pipe opening of the radiator is connected to the input pipe opening of the motor.

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 motor water pump and send the motor non-cooling instruction to the nine-way valve when the motor temperature is not higher than a first preset temperature; The nine-way valve is used to control the driving mechanism to drive the valve core to rotate according to the motor non-cooling instruction, connecting the first interface pipe with the fifth interface pipe, so that the first input pipe port of the motor circuit is connected with the output pipe port of the motor circuit, 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 heat dissipation instructions; The controller is used to start the motor water pump and the radiator and send the motor cooling instruction to the nine-way valve when the motor temperature is higher than a first preset temperature; The nine-way valve is used to control the driving mechanism to drive the valve core to rotate according to the motor heat dissipation instruction, connect the first interface pipe with the ninth interface pipe, so that the second input pipe port of the motor circuit is connected with the output pipe port of the motor circuit, forming a motor heat dissipation circuit corresponding to the motor heat dissipation mode.

6. The system according to claim 3, characterized in that The battery circuit comprises: a battery; The input pipe port of the battery water pump is connected to the second interface pipe, the output pipe port of the battery water pump is connected to the input pipe port of the battery, and the output pipe port of the battery is connected to the eighth 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 battery water pump and send a battery non-cooling instruction to the nine-way valve when the battery temperature is not higher than a second preset temperature; The nine-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 second interface pipe with the eighth interface pipe, so that the input pipe port of the battery circuit is connected with the output pipe port of the battery circuit, forming 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: a first battery heat dissipation instruction; The controller is used to start the motor water pump, the battery water pump and the radiator, and send the first battery heat dissipation instruction to the nine-way valve when the battery temperature is higher than the second preset temperature and not higher than the third preset temperature; The nine-way valve is used to control the driving mechanism to drive the valve core to rotate according to the first battery heat dissipation cooling instruction, connect the first interface pipe with the second interface pipe and connect the eighth interface pipe with the ninth interface pipe, so that the battery circuit is connected with the second input pipe port of the motor circuit and the output pipe port of the motor circuit, forming a first battery heat dissipation circuit corresponding to the first battery heat dissipation mode.

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

10. The system according to claim 2, characterized in that The heating circuit includes: a water heater and a warm air core; The seventh interface pipe is connected to the first pipe port of the liquid-cooled condenser, the second pipe port of the liquid-cooled condenser is connected to the input pipe port of the water heater, the output pipe port of the water heater is connected to the input pipe port of the warm air core, and the output pipe port of the warm air core is connected to the sixth interface pipe.

11. The system according to claim 10, characterized in that The control instructions include: battery heating instructions; The controller is used to start the water heater, the battery water pump and the warm air water pump when the battery temperature is lower than a fourth preset temperature, and send the battery heating instruction to the nine-way valve; The nine-way valve is used to control the driving mechanism to drive the valve core to rotate according to the battery heating instruction, connect the second interface pipe with the sixth interface pipe, and connect the eighth interface pipe with the seventh interface pipe, so that the battery circuit is connected with the heating circuit to form a battery heating circuit corresponding to the battery heating mode.

12. The system according to claim 10, characterized in that The control instructions include: a first battery waste heat recovery instruction; The controller is used to start the battery water pump, the heater water pump and the heater core when a passenger compartment heating request is obtained and the battery temperature is higher than a third preset temperature, and send the first battery waste heat recovery instruction to the nine-way valve; The nine-way valve is used to control the driving mechanism to drive the valve core to rotate according to the first battery waste heat recovery instruction, connect the second interface pipe with the sixth interface pipe, and connect the eighth interface pipe with the seventh interface pipe, so that the battery circuit is connected with the heating circuit, forming a first battery waste heat recovery circuit corresponding to the first battery waste heat recovery mode.

13. The system according to claim 10, characterized in that The control instructions include: a first motor waste heat recovery instruction; The controller is used for starting the motor water pump, the heater water pump and the heater core when a passenger compartment heating request is obtained and the motor temperature is higher than a fifth preset temperature, and sending a first motor waste heat recovery instruction to the nine-way valve; The nine-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, connect the first interface pipe with the seventh interface pipe, and connect the sixth interface pipe with the fifth interface pipe, so that the battery circuit is connected with the first input pipe port of the motor circuit 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.

14. The system according to claim 10, characterized in that The control instructions include: a second motor waste heat recovery instruction; The controller is used to start the motor water pump and the battery water pump and send a second motor waste heat recovery instruction to the nine-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 nine-way valve is used to control the driving mechanism to drive the valve core to rotate according to the second motor waste heat recovery instruction, connect the first interface pipe with the second interface pipe, and connect the eighth interface pipe with the fifth interface pipe, so that the battery circuit is connected with the first input pipe port of the motor circuit 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.

15. The system according to claim 10, characterized in that The control instructions include: a third motor waste heat recovery instruction; The controller is used for starting the motor water pump, the battery water pump, the heater water pump, the heater core and the water heater, and sending the third motor waste heat recovery instruction to the nine-way valve when a passenger compartment 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 nine-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, connect the first interface pipe with the second interface pipe, connect the eighth interface pipe with the seventh interface pipe, connect the sixth interface pipe with the fifth interface pipe, or connect the first interface pipe with the seventh interface pipe, connect the sixth interface pipe with the second interface pipe, and connect the eighth interface pipe with the fifth interface pipe, so as to connect the motor circuit, the battery circuit and the heating circuit to form a third motor waste heat recovery circuit corresponding to the third motor waste heat recovery mode.

16. The system according to claim 10, characterized in that The control instructions include: a fourth motor waste heat recovery instruction; The controller is used for starting the motor water pump, the battery water pump, the heater water pump, the heater core and the water heater, and sending the fourth motor waste heat recovery instruction to the nine-way valve when a passenger compartment 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 nine-way valve is used to control the drive mechanism to drive the valve core to rotate according to the fourth motor waste heat recovery instruction, connect the first interface pipe with the second interface pipe, connect the eighth interface pipe with the third interface pipe, connect the fourth interface pipe with the seventh interface pipe, and connect the sixth interface pipe with the fifth interface pipe, or connect the first interface pipe with the second interface pipe, connect the eighth interface pipe with the seventh interface pipe, connect the sixth interface pipe with the third interface pipe, and connect the fourth interface pipe with the fifth interface pipe, so as to connect the motor circuit, the battery circuit, the heat exchange circuit and the heating circuit to form a fourth motor waste heat recovery circuit corresponding to the fourth motor waste heat recovery mode.

17. The system according to claim 10, characterized in that The control instructions include: a first passenger compartment heating instruction; The controller is used to start the heater water pump and the heater core when obtaining a passenger compartment heating request, and send the first passenger compartment heating instruction to the nine-way valve; The nine-way valve is used to control the driving mechanism to drive the valve core to rotate according to the first passenger compartment heating instruction, connecting the sixth interface pipe and the seventh interface pipe to connect the heating circuit, thereby forming a first passenger compartment heating circuit corresponding to the first passenger compartment heating mode.

18. The system according to claim 10, characterized in that The control instructions include: a second passenger compartment heating instruction; The controller is used to start the heater water pump, the battery water pump and the heater core when a passenger compartment heating request is obtained and the battery temperature is lower than a fourth preset temperature, and send the second passenger compartment heating instruction to the nine-way valve; The nine-way valve is used to control the driving mechanism to drive the valve core to rotate according to the second passenger compartment heating instruction, connect the second interface pipe with the sixth interface pipe, connect the eighth interface pipe with the seventh interface pipe, so that the heating circuit is connected with the battery circuit, forming a second passenger compartment heating circuit corresponding to the second passenger compartment heating mode.

19. The system according to claim 10, characterized in that It also includes the air conditioning circuit; The air conditioning circuit is connected in series with the heat exchanger and the liquid-cooled condenser respectively.

20. The system according to claim 19, characterized in that The control instructions include: battery cooling instructions; The controller is used to control the air conditioning circuit to enter a cooling mode and send the battery cooling instruction to the nine-way valve when the battery temperature is higher than a third preset temperature; The nine-way valve is used to control the driving mechanism to drive the valve core to rotate according to the battery cooling instruction, connect the second interface pipe with the fourth interface pipe, and connect the third interface pipe with the eighth interface pipe, so that the battery circuit exchanges heat with the air conditioning circuit through the heat exchanger, forming a battery cooling circuit corresponding to the battery cooling mode.

21. The system according to claim 19, characterized in that The control instructions include: a second battery waste heat recovery instruction; The controller is used to start the battery water pump, control the air conditioning circuit to enter a heating mode, and send the second battery waste heat recovery instruction to the nine-way valve when a passenger compartment heating request is obtained and the battery temperature is higher than a third preset temperature; The nine-way valve is used to control the driving mechanism to drive the valve core to rotate according to the second battery waste heat recovery instruction, connect the second interface pipe with the fourth interface pipe, and connect the third interface pipe with the eighth interface pipe, so that the battery circuit and the air-conditioning circuit complete the heat exchange, and form a second battery waste heat recovery circuit corresponding to the second battery waste heat recovery mode.

22. The system according to claim 1, characterized in that The nine-way valve further comprises an auxiliary interface pipe, the nine interface pipes comprise seven main interface pipes and two external expansion interface pipes, the valve core comprises a first valve core and a second valve core, and the driving mechanism comprises a first driving mechanism and a second driving mechanism; The two external expansion interface pipes are connected to the auxiliary interface pipe through the second valve core, and the seven main interface pipes and the auxiliary interface pipe are connected through the first valve core; The first driving mechanism is used to drive the first valve core to rotate 45 degrees so that the seven main interface pipes and the auxiliary interface pipe are connected; The second driving mechanism is used to drive the second valve core to rotate 120 degrees so that the two external interface pipes are connected to the auxiliary interface pipe.

23. 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 21.

24. A vehicle, characterized in that: Comprising an integrated thermal management system as claimed in any one of claims 1 to 21.

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