Thermal management system for vehicle, control method and vehicle

Abstract

A thermal management system for a vehicle, a control method and a vehicle. The thermal management system for a vehicle comprises: a control module (10), a first coolant filling module (20), a second coolant filling module (30), an engine module (40), an intercooling module (50), an electric drive module (60), a battery module (70), a heating module (80), a first four-way valve (D1), a second four-way valve (D2), a third four-way valve (D3), a fourth four-way valve (D4) and a fifth four-way valve (D5), wherein the first four-way valve (D1) is arranged between the engine module (40) and the heating module (80), the second four-way valve (D2) is arranged between the engine module (40) and the intercooling module (50), the third four-way valve (D3) is arranged between the intercooling module (50) and the electric drive module (60), the fourth four-way valve (D4) is arranged between the electric drive module (60) and the battery module (70), and the fifth four-way valve (D5) is arranged between the battery module (70) and the heating module (80). By means of the solution, closed-loop integrated control of the engine module (40), the intercooling module (50), the electric drive module (60), the battery module (70) and the heating module (80) can be achieved, and heat of each module is fully utilized, thereby improving the utilization rate of heat of the whole vehicle and reducing energy consumption of the whole vehicle.

Description

Vehicle thermal management system, control method and vehicle Cross-reference to related applications

[0001] This application claims priority to Chinese patent application No. 202411178853.4, filed on August 27, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application belongs to the field of vehicle thermal management technology, and in particular relates to a vehicle thermal management system, control method and vehicle. Background Technology

[0003] A vehicle's thermal management system typically includes engine circuits, intercooler circuits, electric drive circuits, battery circuits, and heating circuits. In related technologies, each circuit of the thermal management system is controlled independently, resulting in low overall vehicle heat utilization and high energy consumption. Summary of the Invention

[0004] The technical solution of this application provides a vehicle thermal management system, control method and vehicle, which can at least to a certain extent improve the utilization rate of vehicle heat and reduce vehicle energy consumption.

[0005] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0006] According to a first aspect of the technical solution of this application, a vehicle thermal management system is provided, comprising: a control module, a first coolant filling module, a second coolant filling module, an engine module, an intercooler module, an electric drive module, a battery module, a heater module, a first four-way valve, a second four-way valve, a third four-way valve, a fourth four-way valve, and a fifth four-way valve, wherein...

[0007] The control module is connected to the first coolant filling module, the second coolant filling module, the engine module, the intercooler module, the electric drive module, the battery module, the heater module, the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve and the fifth four-way valve respectively;

[0008] The first coolant filling module is connected to the engine module;

[0009] The second coolant filling module is connected to the electric drive module;

[0010] The first four-way valve is located between the engine module and the heating module;

[0011] The second four-way valve is located between the engine module and the intercooler module;

[0012] The third four-way valve is located between the intercooling module and the electric drive module;

[0013] The fourth four-way valve is located between the electric drive module and the battery module;

[0014] The fifth four-way valve is located between the battery module and the heating module.

[0015] In some technical solutions, the engine module includes an engine circuit and a first electronic water pump, and the intercooler module includes an intercooler circuit and a second electronic water pump; wherein,

[0016] The input end of the first electronic water pump is connected to the first coolant filling module, the output end is connected to the first end of the engine circuit via the first four-way valve and the second four-way valve in sequence, and the control end is connected to the control module.

[0017] The second end of the engine circuit is connected to the first coolant filling module, and the control end is connected to the control module.

[0018] The input end of the second electronic water pump is connected to the second four-way valve, the output end is connected to the first end of the intercooling circuit via the third four-way valve, and the control end is connected to the control module.

[0019] The second end of the intercooling circuit is connected to the second four-way valve, and the control end is connected to the control module.

[0020] In some technical solutions, the electric drive module includes an electric drive circuit and a third electronic water pump, and the battery module includes a battery circuit and a fourth electronic water pump; wherein,

[0021] The input end of the third electronic water pump is connected to the second coolant filling module, the output end is connected to the first end of the electric drive circuit, and the control end is connected to the control module.

[0022] The second end of the electric drive circuit is connected to the fourth four-way valve via the third four-way valve, and the control end is connected to the control module;

[0023] The input end of the fourth electronic water pump is connected to the first end of the battery circuit, the output end is connected to the fourth four-way valve, and the control end is connected to the control module.

[0024] The second end of the battery circuit is connected to the fourth four-way valve via the fifth four-way valve, and the control end is connected to the control module.

[0025] In some technical solutions, the heating module includes a heating circuit, a heating device, and a fifth electronic water pump; wherein,

[0026] The first end of the warm air circuit is connected to the first four-way valve, the second end is connected to the input end of the fifth electronic water pump via the heating device, and the control end is connected to the control module.

[0027] The output end of the fifth electronic water pump is connected to the first four-way valve via the fifth four-way valve, and the control end is connected to the control module.

[0028] According to a second aspect of the technical solution of this application, a vehicle is provided, including a thermal management system for a vehicle as described in any of the first aspects above.

[0029] According to a third aspect of the technical solution of this application, a thermal management control method for a vehicle is provided, applied to the aforementioned thermal management system of the vehicle, the method comprising:

[0030] Obtain the vehicle's operating mode or coolant filling mode;

[0031] Depending on the operating mode or the coolant filling mode, control whether the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are open.

[0032] In some technical solutions, controlling whether the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are open according to the aforementioned working mode includes:

[0033] When the working mode is that the engine is started in the engine circuit and needs to be warmed up, it is determined whether the temperature of the first coolant in the intercooler circuit is higher than the temperature of the second coolant in the engine circuit.

[0034] When the temperature of the first coolant is higher than that of the second coolant, the second four-way valve is opened, and the first four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are closed.

[0035] In some technical solutions, controlling whether the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are open according to the aforementioned working mode includes:

[0036] When the operating mode is electric drive mode and the battery in the battery circuit needs to be heated, the fourth four-way valve is opened, and the first four-way valve, the second four-way valve, the third four-way valve and the fifth four-way valve are closed.

[0037] In some technical solutions, controlling whether the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are open according to the aforementioned working mode includes:

[0038] When the operating mode is engine drive mode, and a heating command is received, and the temperature of the third coolant in the engine circuit reaches a preset temperature, the first four-way valve is opened, and the second, third, fourth, and fifth four-way valves are closed.

[0039] In some technical solutions, controlling whether the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are open according to the aforementioned working mode includes:

[0040] When the working mode is charging mode, the fifth four-way valve is opened, and the first four-way valve, the second four-way valve, the third four-way valve and the fourth four-way valve are closed.

[0041] When the operating mode is hybrid mode, the third four-way valve and the fourth four-way valve are opened, while the first four-way valve and the fifth four-way valve are closed.

[0042] In some technical solutions, controlling whether the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are open according to the coolant filling mode includes:

[0043] When the coolant filling mode is full-loop filling, four of the four-way valves (first, second, third, fourth, and fifth) are opened, and one four-way valve is closed.

[0044] In this application, a control module, a first coolant filling module, a second coolant filling module, an engine module, an intercooler module, an electric drive module, a battery module, a heater module, a first four-way valve, a second four-way valve, a third four-way valve, a fourth four-way valve, and a fifth four-way valve are installed in the vehicle's thermal management system. Specifically, the first four-way valve is installed between the engine module and the heater module; the second four-way valve is installed between the engine module and the intercooler module; the third four-way valve is installed between the intercooler module and the electric drive module; the fourth four-way valve is installed between the electric drive module and the battery module; and the fifth four-way valve is installed between the battery module and the heater module. This solution enables closed-loop integrated control of the engine module, intercooler module, electric drive module, battery module, and heater module, fully utilizing the heat from each module, improving the overall vehicle heat utilization rate, and reducing overall vehicle energy consumption. Meanwhile, by controlling the opening of the four-way valve, the engine module, intercooler module, electric drive module, battery module, and heater module can be connected in series. Then, any coolant filling module can be selected to replenish the entire thermal management system, improving the coolant filling efficiency and enhancing the convenience of maintenance.

[0045] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0046] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0047] Figure 1 shows a functional block diagram of a vehicle's thermal management system in one embodiment;

[0048] Figure 2 shows a schematic diagram of the thermal management system of a vehicle in one embodiment;

[0049] Figure 3 shows a flowchart of a vehicle thermal management control method in one embodiment;

[0050] Figure 4 shows a block diagram of a vehicle thermal management control device in one embodiment;

[0051] Figure 5 shows a schematic diagram of the thermal management control device for a vehicle in one embodiment.

[0052] Explanation of icon numbers:

[0053] Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0056] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0057] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0058] It should also be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such uses of these terms can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described.

[0059] To enable those skilled in the art to better understand this application, the application scenarios involved in this application will be briefly explained first with reference to Figure 1.

[0060] Figure 1 shows a functional block diagram of a vehicle's thermal management system in one embodiment. As shown in Figure 1, in some embodiments, the vehicle's thermal management system may include: a control module 10, a first coolant filling module 20, a second coolant filling module 30, an engine module 40, an intercooler module 50, an electric drive module 60, a battery module 70, a heater module 80, a first four-way valve D1, a second four-way valve D2, a third four-way valve D3, a fourth four-way valve D4, and a fifth four-way valve D5, wherein the control module 10 is connected to the first coolant filling module 20, the second coolant filling module 30, the engine module 40, the intercooler module 50, the electric drive module 60, the battery module 70, the heater module 80, and the first four-way valve D5, respectively. D1, the second four-way valve D2, the third four-way valve D3, the fourth four-way valve D4, and the fifth four-way valve D5 are connected; the first coolant filling module 20 is connected to the engine module 40; the second coolant filling module 30 is connected to the electric drive module 60; the first four-way valve D1 is located between the engine module 40 and the heater module 80; the second four-way valve D2 is located between the engine module 40 and the intercooler module 50; the third four-way valve D3 is located between the intercooler module 50 and the electric drive module 60; the fourth four-way valve D4 is located between the electric drive module 60 and the battery module 70; and the fifth four-way valve D5 is located between the battery module 70 and the heater module 80.

[0061] Understandably, engine module 40 is used for thermal management of the engine circuit, intercooler module 50 is used for thermal management of the intercooler circuit, electric drive module 60 is used for thermal management of the electric drive circuit, battery module 70 is used for thermal management of the battery circuit, and heater module 80 is used for thermal management of the heater circuit.

[0062] The first four-way valve D1, the second four-way valve D2, the third four-way valve D3, the fourth four-way valve D4, and the fifth four-way valve D5 each have four ports. When the four-way valve is closed, the first port (1) and the fourth port (4) are connected, and the second port (2) and the third port (3) are connected. When the four-way valve is opened, the first port (1) and the second port (2) are connected, and the third port (3) and the fourth port (4) are connected.

[0063] When the first four-way valve D1, the second four-way valve D2, the third four-way valve D3, the fourth four-way valve D4, and the fifth four-way valve D5 are all closed, the engine module 40, the intercooler module 50, the electric drive module 60, the battery module 70, and the heater module 80 each complete their internal thermal management. When the first four-way valve D1 is open, coolant can flow between the engine module 40 and the heater module 80, thereby realizing heat exchange between the engine module 40 and the heater module 80; when the second four-way valve D2 is open, heat exchange can occur between the engine module 40 and the intercooler module 50; when the third four-way valve D3 is open, heat exchange can occur between the intercooler module 50 and the electric drive module 60; when the fourth four-way valve D4 is open, heat exchange can occur between the electric drive module 60 and the battery module 70; and when the fifth four-way valve D5 is open, heat exchange can occur between the heater module 80 and the battery module 70. When multiple four-way valves, including the first four-way valve D1, the second four-way valve D2, the third four-way valve D3, the fourth four-way valve D4, and the fifth four-way valve D5, are opened, multiple modules can be connected in series and mutually call upon heat to achieve heat exchange between multiple modules.

[0064] Figure 2 shows a schematic diagram of the thermal management system of a vehicle in one embodiment. Referring to Figures 1 and 2 together, in some embodiments, the engine module 40 includes an engine circuit 400 and a first electronic water pump S1, and the intercooler module 50 includes an intercooler circuit 500 and a second electronic water pump S2; wherein, the input end of the first electronic water pump S1 is connected to the first coolant filling module 20, and the output end is connected to the first end of the engine circuit 400 via a first four-way valve D1 and a second four-way valve D2 in sequence, and the control end is connected to the control module 10; the second end of the engine circuit 400 is connected to the first coolant filling module 20, and the control end is connected to the control module 10; the input end of the second electronic water pump S2 is connected to the second four-way valve D2, and the output end is connected to the first end of the intercooler circuit 500 via a third four-way valve D3, and the control end is connected to the control module 10; the second end of the intercooler circuit 500 is connected to the second four-way valve D2, and the control end is connected to the control module 10.

[0065] Among them, the engine circuit 400 is a circuit composed of the engine and related components, the intercooler circuit 500 is a circuit composed of the intercooler and related components, and the first electronic water pump S1 and the second electronic water pump S2 are used to drive the coolant circulation.

[0066] The first coolant filling module 20 may include a first filling port (filling port 1) and a first degassing chamber 200, and the second coolant filling module 30 may include a second filling port (filling port 2) and a second degassing chamber 300.

[0067] In some embodiments, the electric drive module 60 includes an electric drive circuit 600 and a third electronic water pump S3, and the battery module 70 includes a battery circuit 700 and a fourth electronic water pump S4; wherein, the input end of the third electronic water pump S3 is connected to the second coolant filling module 30, the output end is connected to the first end of the electric drive circuit 600, and the control end is connected to the control module 10; the second end of the electric drive circuit 600 is connected to the fourth four-way valve D4 via the third four-way valve D3, and the control end is connected to the control module 10; the input end of the fourth electronic water pump S4 is connected to the first end of the battery circuit 700, the output end is connected to the fourth four-way valve D4, and the control end is connected to the control module 10; the second end of the battery circuit 700 is connected to the fourth four-way valve D4 via the fifth four-way valve D5, and the control end is connected to the control module 10.

[0068] Among them, the electric drive circuit 600 is a circuit composed of a motor, a motor controller, a transmission mechanism and related components, the battery circuit 700 is a circuit composed of a battery and related components, and the third electronic water pump S3 and the fourth electronic water pump S4 are used to drive the coolant circulation.

[0069] In some embodiments, the warm air module 80 includes a warm air circuit 800, a heating device PTC, and a fifth electronic water pump S5; wherein, the first end of the warm air circuit 800 is connected to the first four-way valve D1, the second end is connected to the input end of the fifth electronic water pump S5 via the heating device PTC, and the control end is connected to the control module 10; the output end of the fifth electronic water pump S5 is connected to the first four-way valve D1 via the fifth four-way valve D5, and the control end is connected to the control module 10.

[0070] Among them, the warm air circuit 800 is a circuit composed of components such as a fan and a temperature sensor, the heating device PTC can be a heater or other components, and the fifth electronic water pump S5 is used to drive the coolant circulation.

[0071] This embodiment of the application sets up a control module 10, a first coolant filling module 20, a second coolant filling module 30, an engine module 40, an intercooler module 50, an electric drive module 60, a battery module 70, a heater module 80, a first four-way valve D1, a second four-way valve D2, a third four-way valve D3, a fourth four-way valve D4, and a fifth four-way valve D5 in the vehicle's thermal management system. The first four-way valve D1 is set between the engine module 40 and the heater module 80, the second four-way valve D2 is set between the engine module 40 and the intercooler module 50, the third four-way valve D3 is set between the intercooler module 50 and the electric drive module 60, the fourth four-way valve D4 is set between the electric drive module 60 and the battery module 70, and the fifth four-way valve D5 is set between the battery module 70 and the heater module 80. The above solution enables closed-loop integrated control of the engine module 40, intercooler module 50, electric drive module 60, battery module 70, and heater module 80, fully utilizing the heat of each module, improving the overall vehicle heat utilization rate, and reducing overall vehicle energy consumption. Simultaneously, by controlling the opening of the four-way valve, the engine module 40, intercooler module 50, electric drive module 60, battery module 70, and heater module 80 can be connected in series. This allows selection of any one coolant filling module to replenish the entire thermal management system, improving coolant filling efficiency and enhancing maintenance convenience.

[0072] Figure 3 shows a flowchart of a vehicle thermal management control method in one embodiment. As shown in Figure 3, a vehicle thermal management control method is provided. Taking the application of this method to the control module in Figure 1 as an example, the method may include the following steps:

[0073] Step 301: Obtain the vehicle's operating mode or coolant filling mode;

[0074] Step 302: Control whether the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are open, depending on the working mode or the coolant filling mode.

[0075] In some embodiments, when the engine is started and warm-up is required in the engine circuit, it is determined whether the temperature of the first coolant in the intercooler circuit is higher than the temperature of the second coolant in the engine circuit; if the temperature of the first coolant is higher than the temperature of the second coolant, the second four-way valve is opened and the first four-way valve, the third four-way valve, the fourth four-way valve and the fifth four-way valve are closed.

[0076] Understandably, when the engine is started and needs to warm up, if the temperature of the first coolant in the intercooler circuit is higher than the temperature of the second coolant in the engine circuit, the excess heat in the intercooler circuit can be used to warm up the engine. In this process, by opening the second four-way valve, the higher-temperature coolant in the intercooler circuit flows to the engine circuit, achieving rapid engine warm-up.

[0077] In some embodiments, when the operating mode is electric drive mode and the battery in the battery circuit needs to be heated, the fourth four-way valve is opened, and the first four-way valve, the second four-way valve, the third four-way valve and the fifth four-way valve are closed.

[0078] Understandably, in electric drive mode, if the battery needs heating, and the electric drive circuit has residual heat that can be utilized, then this residual heat can be used to heat the battery. In this process, by opening the fourth four-way valve, the higher-temperature coolant in the electric drive circuit flows to the battery circuit, thus heating the battery.

[0079] In some embodiments, when the operating mode is engine drive mode, and a heating command is received and the temperature of the third coolant in the engine circuit reaches a preset temperature, the first four-way valve is controlled to open, and the second, third, fourth, and fifth four-way valves are controlled to close.

[0080] Understandably, in engine mode, if a heating command is received from the user, and the temperature of the third coolant is higher than the coolant temperature in the heating circuit, the heating circuit can utilize the waste heat from the engine circuit, saving energy for the heating device. In this process, by opening the first four-way valve, the higher-temperature coolant in the engine circuit flows to the heating circuit to provide heat.

[0081] In some embodiments, when the operating mode is charging mode, the fifth four-way valve is opened and the first, second, third, and fourth four-way valves are closed; when the operating mode is hybrid mode, the third and fourth four-way valves are opened and the first and fifth four-way valves are closed.

[0082] Understandably, in charging mode, the entire thermal management system has no residual heat. Opening the fifth four-way valve allows the coolant to be heated via the heating device. The heated coolant then enters the battery circuit through the fifth four-way valve to heat the battery circuit. In hybrid mode, opening the third and fourth four-way valves utilizes the residual heat from the intercooler and electric drive circuits to heat the battery circuit; opening the second, third, and fourth four-way valves utilizes the residual heat from the engine circuit, intercooler circuit, and electric drive circuit to heat the battery circuit.

[0083] Of course, in other demand combination modes, all loops can achieve forward or reverse heat exchange and energy replenishment according to the actual working conditions, and one or more loops can be activated simultaneously to provide heat exchange and energy replenishment for a certain loop as needed.

[0084] In some embodiments, when the coolant filling mode is full-loop filling, four of the four-way valves (first four-way valve, second four-way valve, third four-way valve, fourth four-way valve, and fifth four-way valve) are opened, and one four-way valve is closed.

[0085] Understandably, coolant filling modes can be divided into full-circuit filling and custom filling.

[0086] During full-loop filling, N-1 four-way valves (N being the total number of four-way valves) need to be opened to achieve a large series connection across all loops. At this time, the entire thermal management system can be replenished from any filling port. During full-loop filling, the electric water pumps corresponding to the opened four-way valves can also be set to operate at a preset duty cycle and for a preset running time. In practice, when the user selects full-loop filling, the control module can open the first, second, third, and fourth four-way valves, controlling the first, second, third, and fourth electric water pumps to operate at a 25% duty cycle for 6 minutes. After the operation is complete, the next cycle can be executed as needed.

[0087] During custom refueling, users can select which four-way valves to open, and also set the corresponding electronic water pumps to operate at a preset duty cycle and for a set duration. In practice, after the user selects the first and second four-way valves, the control module opens both valves and controls the first and second electronic water pumps to operate at a 25% duty cycle for 6 minutes. After the cycle is complete, the next cycle can be executed as needed.

[0088] The above method, through the control of the four-way valve, can achieve multiple combination modes, enabling controllable adjustment of the heat from the engine module, intercooler module, electric drive module, battery module, and heating module, thereby reducing overall vehicle energy consumption and increasing driving range. Simultaneously, by controlling the opening of the four-way valve, series connection can be established between the engine module, intercooler module, electric drive module, battery module, and heating module. This allows for the selection of any one coolant filling module to replenish the entire thermal management system, improving coolant filling efficiency and enhancing maintenance convenience.

[0089] The following describes an embodiment of the apparatus described in this application, which can be used to execute the vehicle thermal management control method described in the above embodiments of this application. For details not disclosed in the apparatus embodiments of this application, please refer to the embodiments of the vehicle thermal management control method described in the above applications.

[0090] Figure 4 shows a block diagram of a vehicle thermal management control device in one embodiment. As shown in Figure 4, the vehicle thermal management control device of this embodiment includes: a data acquisition module 401 and a four-way valve control module 402, wherein the data acquisition module 401 is used to acquire the vehicle's operating mode or coolant filling mode, and the four-way valve control module 402 is used to control whether the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are opened according to the operating mode or coolant filling mode.

[0091] In some embodiments, the four-way valve control module 402 is further configured to determine whether the temperature of the first coolant in the intercooler circuit is higher than the temperature of the second coolant in the engine circuit when the engine is started and warm-up is required in the engine circuit operating mode; and to open the second four-way valve and close the first four-way valve, the third four-way valve, the fourth four-way valve and the fifth four-way valve when the first coolant temperature is higher than the second coolant temperature.

[0092] In some embodiments, the four-way valve control module 402 is further configured to control the fourth four-way valve to open and the first four-way valve, the second four-way valve, the third four-way valve and the fifth four-way valve to close when the working mode is electric drive mode and the battery in the battery circuit needs to be heated.

[0093] In some embodiments, the four-way valve control module 402 is further configured to control the first four-way valve to open and the second, third, fourth and fifth four-way valves to close when the working mode is engine drive mode, a heating command is received, and the temperature of the third coolant in the engine circuit reaches a preset temperature.

[0094] In some embodiments, the four-way valve control module 402 is further configured to control the fifth four-way valve to open and the first four-way valve, the second four-way valve, the third four-way valve, and the fourth four-way valve to close when the working mode is charging mode; and to control the third four-way valve and the fourth four-way valve to open and the first four-way valve and the fifth four-way valve to close when the working mode is hybrid mode.

[0095] In some embodiments, the four-way valve control module 402 is further configured to control four of the four-way valves (first four-way valve, second four-way valve, third four-way valve, fourth four-way valve, and fifth four-way valve) to open and one four-way valve to close when the coolant filling mode is full-loop filling.

[0096] Based on the same inventive concept, this application also provides a vehicle thermal management control device. Referring to FIG5, a structural schematic diagram of the vehicle thermal management control device in this application embodiment is shown. The vehicle thermal management control device includes one or more memories 504, one or more processors 502, and at least one computer program (computer program instruction) stored in the memory 504 and executable on the processor 502. When the processor 502 executes the computer program, it implements the method described above.

[0097] In Figure 5, a bus architecture (represented by bus 500) is shown. Bus 500 may include any number of interconnected buses and bridges, linking various circuits including one or more processors represented by processor 502 and memory represented by memory 504. Bus 500 may also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 505 provides an interface between bus 500 and receiver 501 and transmitter 503. Receiver 501 and transmitter 503 may be the same element, i.e., a transceiver, providing a unit for communicating with various other devices over a transmission medium. Processor 502 is responsible for managing bus 500 and general processing, while memory 504 can be used to store data used by processor 502 during operation.

[0098] Based on the same inventive concept, embodiments of this application provide a computer-readable storage medium storing computer program instructions, which, when executed by a processor, cause the processor to perform the steps of the method described above.

[0099] Based on the same inventive concept, embodiments of this application provide a computer program product, including a computer program, which, when executed by a processor, causes the processor to perform the steps of the method described above.

[0100] Based on the same inventive concept, embodiments of this application provide a vehicle including the aforementioned vehicle thermal management system.

[0101] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and embodiments are within the scope and spirit of this application and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Furthermore, the functional units may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit.

[0102] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0103] The units described as separate components may or may not be physically separate. Similarly, the components of the control device may or may not be physical units; they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0104] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing computer program instructions, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0105] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A thermal management system for a vehicle, comprising: The system includes a control module, a first coolant filling module, a second coolant filling module, an engine module, an intercooler module, an electric drive module, a battery module, a heater module, a first four-way valve, a second four-way valve, a third four-way valve, a fourth four-way valve, and a fifth four-way valve. The control module is connected to the first coolant filling module, the second coolant filling module, the engine module, the intercooler module, the electric drive module, the battery module, the heater module, the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve and the fifth four-way valve respectively; The first coolant filling module is connected to the engine module; The second coolant filling module is connected to the electric drive module; The first four-way valve is located between the engine module and the heating module; The second four-way valve is located between the engine module and the intercooler module; The third four-way valve is located between the intercooling module and the electric drive module; The fourth four-way valve is located between the electric drive module and the battery module; The fifth four-way valve is located between the battery module and the heating module.

2. The thermal management system according to claim 1, wherein, The engine module includes an engine circuit and a first electronic water pump, and the intercooler module includes an intercooler circuit and a second electronic water pump; wherein... The input end of the first electronic water pump is connected to the first coolant filling module, the output end is connected to the first end of the engine circuit via the first four-way valve and the second four-way valve in sequence, and the control end is connected to the control module. The second end of the engine circuit is connected to the first coolant filling module, and the control end is connected to the control module. The input end of the second electronic water pump is connected to the second four-way valve, the output end is connected to the first end of the intercooling circuit via the third four-way valve, and the control end is connected to the control module. The second end of the intercooling circuit is connected to the second four-way valve, and the control end is connected to the control module.

3. The thermal management system according to claim 2, wherein, The electric drive module includes an electric drive circuit and a third electronic water pump, and the battery module includes a battery circuit and a fourth electronic water pump; wherein... The input end of the third electronic water pump is connected to the second coolant filling module, the output end is connected to the first end of the electric drive circuit, and the control end is connected to the control module. The second end of the electric drive circuit is connected to the fourth four-way valve via the third four-way valve, and the control end is connected to the control module; The input end of the fourth electronic water pump is connected to the first end of the battery circuit, the output end is connected to the fourth four-way valve, and the control end is connected to the control module. The second end of the battery circuit is connected to the fourth four-way valve via the fifth four-way valve, and the control end is connected to the control module.

4. The thermal management system according to claim 2, wherein, The heating module includes a heating circuit, a heating device, and a fifth electronic water pump; wherein... The first end of the warm air circuit is connected to the first four-way valve, the second end is connected to the input end of the fifth electronic water pump via the heating device, and the control end is connected to the control module. The output end of the fifth electronic water pump is connected to the first four-way valve via the fifth four-way valve, and the control end is connected to the control module.

5. A vehicle comprising the thermal management system of any one of claims 1-4.

6. A thermal management control method for a vehicle, applied to the thermal management system of a vehicle according to any one of claims 1 to 4, the method comprising: Obtain the vehicle's operating mode or coolant filling mode; Depending on the operating mode or the coolant filling mode, control whether the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are open.

7. The method according to claim 6, wherein, According to the aforementioned operating mode, controlling whether the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are open includes: When the working mode is that the engine is started in the engine circuit and needs to be warmed up, it is determined whether the temperature of the first coolant in the intercooler circuit is higher than the temperature of the second coolant in the engine circuit. When the temperature of the first coolant is higher than that of the second coolant, the second four-way valve is opened, and the first four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are closed.

8. The method according to claim 6, wherein, According to the aforementioned operating mode, controlling whether the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are open includes: When the operating mode is engine drive mode, and a heating command is received, and the temperature of the third coolant in the engine circuit reaches a preset temperature, the first four-way valve is opened, and the second, third, fourth, and fifth four-way valves are closed.

9. The method according to claim 6, wherein, According to the aforementioned operating mode, controlling whether the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are open includes: When the working mode is charging mode, the fifth four-way valve is opened, and the first four-way valve, the second four-way valve, the third four-way valve and the fourth four-way valve are closed. When the operating mode is hybrid mode, the third four-way valve and the fourth four-way valve are opened, while the first four-way valve and the fifth four-way valve are closed.

10. The method according to claim 6, wherein, According to the coolant filling mode, controlling whether the first four-way valve, the second four-way valve, the third four-way valve, the fourth four-way valve, and the fifth four-way valve are open includes: When the coolant filling mode is full-loop filling, four of the four-way valves (first, second, third, fourth, and fifth) are opened, and one four-way valve is closed.

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