Vehicle thermal management system and vehicle

Abstract

A vehicle thermal management system and a vehicle. The vehicle thermal management system comprises a low-temperature cooling module. The low-temperature cooling module comprises a water-cooling intercooler (25), a low-temperature heat dissipation component, and a second cooling flow path (20). The second cooling flow path comprises a second main flow path (20A) and a fifth branch flow path (20D) which are connected in parallel. The water-cooling intercooler is arranged on the fifth branch flow path. The low-temperature heat dissipation component is arranged on the second main flow path. The low-temperature heat dissipation component comprises at least one of a charging power supply assembly (47), a rear electric controller (48), a rear motor oil-cooling plate heat exchanger (49), and an electro-hybrid oil-cooling plate heat exchanger (50). The vehicle thermal management system can improve the waste heat utilization rate of a motor electric control assembly.

Description

Vehicle thermal management system and vehicle

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 27, 2023, with application number 202311274031.1 and invention name “Vehicle Thermal Management System and Vehicle”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of automotive technology, and in particular to a vehicle thermal management system and a vehicle. Background Art

[0003] Compared to gasoline-powered vehicles, hybrid vehicles offer a wider range of use cases, placing greater demands on the vehicle's internal thermal management system. However, existing hybrid vehicle thermal management systems have low utilization rates of waste heat from the engine and motor / electronic control components, posing a key challenge.

[0004] Summary of the Invention

[0005] The purpose of this application is to provide a vehicle thermal management system and a vehicle, which can improve the waste heat utilization rate of motor and electronic control components.

[0006] In the first aspect, the present application provides a vehicle thermal management system, including a low-temperature cooling module, the low-temperature cooling module including a water-cooled intercooler, a low-temperature heat dissipation component and a second cooling flow path, the second cooling flow path including a second main flow path and a fifth branch flow path connected in parallel, the water-cooled intercooler is arranged on the fifth branch flow path, the low-temperature heat dissipation component is arranged on the second main flow path, and the low-temperature heat dissipation component includes at least one of a charging and power supply component, a rear electronic control, a rear motor oil cooling plate and an electric hybrid oil cooling plate.

[0007] In one embodiment, the low-temperature cooling module further includes a motor electronic control component, and the second cooling flow path flowing through the motor electronic control component is used to cool the motor electronic control component.

[0008] In one embodiment, the charging and power supply assembly, the rear electronic control, the rear motor oil cooling plate and the electric hybrid oil cooling plate are connected in series on the second main flow path.

[0009] In one embodiment, the low-temperature cooling module further includes a heat exchanger, the second cooling flow path includes a third branch flow path connected in series with the fifth branch flow path, the heat exchanger is arranged on the third branch flow path, and the heat exchanger is used to exchange heat with the air-conditioning system and / or the battery system.

[0010] In one embodiment, the low-temperature cooling module also includes an electronic three-way valve and a second radiator, and the second cooling flow path also includes a fourth branch flow path connected in parallel with the third branch flow path; the second main flow path, the third branch flow path and the fourth branch flow path are respectively connected to the electronic three-way valve; the second radiator is arranged on the fourth branch flow path.

[0011] In one embodiment, the low-temperature cooling module also includes an electronic two-way valve and a third radiator; the electronic two-way valve, the third radiator and the water-cooled intercooler are all arranged on the fifth branch flow path; the fifth branch flow path and the second main flow path converge and flow into the electronic three-way valve, and the electronic two-way valve is used to open or block the fifth branch flow path.

[0012] In one embodiment, the low-temperature cooling module further includes a second three-way valve, a third three-way valve and a fourth three-way valve, wherein the second three-way valve is arranged on the third branch flow path and is located behind the heat exchanger on the third branch flow path, and the third branch flow path and the fourth branch flow path are converged through the second three-way valve.

[0013] In one embodiment, the low-temperature cooling module further includes a third water pump, and the third water pump is arranged after the second three-way valve.

[0014] In one embodiment, the low-temperature cooling module is also used to cool the intelligent driving controller. The low-temperature cooling module also includes a first throttle valve. The second main flow path connects the first throttle valve and the intelligent driving controller. The intelligent driving controller is connected in parallel with the first throttle valve.

[0015] In one embodiment, the vehicle thermal management system further includes a high-temperature cooling module, a warm air module and a multi-way valve, wherein the multi-way valve is connected between the high-temperature cooling module and the warm air module, and the multi-way valve is used to connect or disconnect the high-temperature cooling module and the warm air module.

[0016] In one embodiment, the high-temperature cooling module includes an engine cooling flow channel and a first cooling flow channel, and the first cooling flow channel is connected to the engine cooling flow channel; the warm air module includes a first warm air core and a first warm air flow channel, and the first warm air flow channel and the first cooling flow channel are selectively connected through the multi-way valve, and the first warm air flow channel, the first warm air core, and the heat exchanger are selectively connected through the multi-way valve, and the first warm air core is used to heat the passenger compartment.

[0017] In one embodiment, the warm air module also includes a heater, and the first warm air flow path includes a first main flow path, a first warm air branch flow path, and a second warm air branch flow path; the first main flow path is connected to the first cooling flow path, the first warm air core is arranged on the first warm air branch flow path, and the heat exchanger is arranged on the second warm air branch flow path; the first main flow path is branched after passing through the heater to form the first warm air branch flow path and the second warm air branch flow path; when the water temperature on the first cooling flow path is greater than or equal to the first preset water temperature, the heater stops; when the water temperature on the first cooling flow path is lower than the first preset water temperature, the heater starts.

[0018] In one embodiment, the multi-way valve is an electronic five-way valve, which includes a first port, a second port, a third port, a fourth port, and a fifth port. The first cooling flow path is connected to the fifth port, the first main flow path is connected to the fourth port, the first warm air branch flow path is connected to the third port, the second warm air branch flow path is connected to the second port, and the first port is connected to the first cooling flow path; the electronic five-way valve includes a first state and a second state. In the first state, the fourth port is connected to the fifth port, and the first port, the second port and the third port are connected; in the second state, the first port is connected to the fifth port, and the second port, the third port and the fourth port are connected.

[0019] In one embodiment, the high-temperature cooling module further includes an engine oil cooler, and the first cooling flow path passes through the engine oil cooler and then connects to the electronic five-way valve.

[0020] In one embodiment, the high-temperature cooling module also includes an engine oil cooler and an exhaust gas recirculation cooler, and the first cooling flow path includes a first branch flow path and a second branch flow path. The first branch flow path passes through the exhaust gas recirculation cooler and is connected to the electronic five-way valve, and the second branch flow path passes through the engine oil cooler and merges with the flow path flowing out of the first port.

[0021] In one embodiment, the high-temperature cooling module further includes a first radiator and a third cooling flow path, and the third cooling flow path is sequentially connected to the engine cooling flow channel and the first radiator.

[0022] In one embodiment, the vehicle thermal management system also includes a degassing module, which includes a second throttle valve, a third main flow path, a sixth branch flow path and a seventh branch flow path. The third main flow path is connected to the engine cooling channel and the second throttle valve in sequence, and is divided into the sixth branch flow path and the seventh branch flow path after passing through the second throttle valve. The first radiator is arranged on the sixth branch flow path, and the heat exchanger is arranged on the seventh branch flow path.

[0023] In one embodiment, the degassing module further includes a first one-way valve and a second one-way valve, the sixth branch flow path sequentially connects the first one-way valve and the first radiator, and the seventh branch flow path sequentially connects the second one-way valve and the heat exchanger.

[0024] In one embodiment, the warm air module further includes a second warm air core, and the second warm air core is disposed on the first warm air flow path.

[0025] In a second aspect, the present application also provides a vehicle, which includes a vehicle thermal management system as described in any one of the above items.

[0026] The present application helps to realize waste heat utilization of the low-temperature cooling module and ensure the water inlet temperature of the water-cooled intercooler by incorporating the water-cooled intercooler into the low-temperature cooling module. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the implementation methods or the description of the prior art. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] FIG1 is a low-temperature cooling module of a vehicle thermal management system according to an embodiment;

[0029] FIG2 is a low-temperature cooling module of a vehicle thermal management system according to another embodiment;

[0030] FIG3 is a schematic diagram of a high-temperature cooling module and a heating module of a vehicle thermal management system according to an embodiment;

[0031] FIG4 is a schematic diagram of a high-temperature cooling module and a heating module of a vehicle thermal management system according to another embodiment;

[0032] FIG5 is a schematic diagram of a high-temperature cooling module and a heating module of a vehicle thermal management system according to yet another embodiment.

[0033] Explanation of Reference Numerals: 1-Engine Body, 2-Engine Cooling Flow Channel, 3-First Cooling Flow Channel, 3A-First Branch Flow Channel, 3B-Second Branch Flow Channel, 4-Engine Oil Cooler, 5-Exhaust Gas Recirculation Cooler, 6-First Radiator, 7-Third Cooling Flow Channel, 8-Second Water Pump, 9-Water Outlet Thermostat; 10-First Heater Core, 11-Heat Exchanger, 12-First Warm Air Flow Channel, 12A-First Main Flow Channel, 12B-First Warm Air Branch Flow Channel, 12C-Second Warm Air Branch Flow Channel, 13-Heater, 14-First Three-Way Valve, 15-Multi-Way Valve, A-First Port, B-Second Port, C-Third Port, D-Fourth Port, E-Fifth Port, 16-First Water Pump, 17-Second Warm Air Core; 19-motor electronic control assembly, 20-second cooling flow path, 20A-second main flow path, 20B-third branch flow path, 20C-fourth branch flow path, 20D-fifth branch flow path, 21-electronic three-way valve, F-sixth port, G-seventh port, H-eighth port, 22-second radiator, 23-electronic two-way valve, 24-third radiator, 25-water-cooled intercooler, 26-second three-way valve, 27-third three-way valve, 28-fourth three-way valve, 29-third water pump, 31-intelligent driving controller, 32-first throttle valve; 33-first water tank, 34-second throttle valve, 35-third main flow path, 36-sixth branch flow path, 37-seventh branch flow path, 38-first one-way valve, 39-second one-way valve, 40-second water tank, 41-third throttle valve, 42-ninth branch flow path, 43-eighth branch flow path, 44-throttle valve, 45-supercharger, 46-air-cooled condenser, 47-charging power supply component, 48-rear electronic control, 49-rear motor oil cooling plate replacement, 50-electric hybrid oil cooling plate replacement. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it may be directly connected to the other component or there may be an intermediate component.

[0036] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" as used in this application includes any and all combinations of one or more of the relevant listed items.

[0037] The following describes some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0038] In one embodiment, the present application provides a vehicle thermal management system, please refer to Figures 1 and 2, including a low-temperature cooling module, the low-temperature cooling module includes a water-cooled intercooler 25, a low-temperature heat dissipation component and a second cooling flow path 20, the second cooling flow path includes a second main flow path 20A and a fifth branch flow path 20D in parallel, the water-cooled intercooler 25 is arranged on the fifth branch flow path 20D, the low-temperature heat dissipation component is arranged on the second main flow path 20A, and the low-temperature heat dissipation component includes at least one of the motor electronic control component 19, the charging and power supply component 47, the rear electronic control 48, the rear motor oil cooling plate 49 and the electric hybrid oil cooling plate 50.

[0039] Specifically, the low-temperature cooling module can cool the motor and electronic control assembly 19 and transfer the heat exchanged by the motor and electronic control assembly 19 to the water-cooled intercooler 25. It is understandable that the heat generated by the motor and electronic control assembly 19 during operation can cause the temperature inside the motor and electronic control assembly 19 to rise rapidly. The second cooling flow path 20 flowing through the motor and electronic control assembly 19 is used to dissipate this heat, cooling the motor and electronic control assembly 19 while also exchanging heat with other modules.

[0040] Optionally, the motor electronic control assembly 19 may include a generator electronic controller and a front drive motor electronic controller.

[0041] The present application incorporates the water-cooled intercooler 25 into the low-temperature cooling module, thereby facilitating waste heat utilization of the low-temperature cooling module and ensuring the water inlet temperature of the water-cooled intercooler 25 .

[0042] In one embodiment, referring to Figures 1 and 2, the low-temperature cooling module further includes a heat exchanger, the second cooling flow path includes a third branch flow path 20B connected in series with the fifth branch flow path, and the heat exchanger is arranged on the third branch flow path 20B, and the heat exchanger is used to exchange heat with the air-conditioning system and / or the battery system.

[0043] Specifically, the heat exchanger 11 can be a three-layer waste heat plate exchanger. It needs to be explained that the three-layer waste heat plate exchanger can have at least three flow channels for the flow of coolant. The three flow channels are respectively connected to the high-temperature cooling module (first warm air flow path 12), the low-temperature cooling module (second cooling flow path 20) and the refrigerant module, and each module realizes heat transfer through the three-layer waste heat plate exchanger (heat exchanger 11). Among them, the refrigerant module can be connected to the air-conditioning system and / or the battery system, so as to be used to heat the passenger cabin or heat the battery pack.

[0044] In one embodiment, referring to Figures 1 and 2, the low-temperature cooling module further includes an electronic three-way valve 21 and a second radiator 22, and the second cooling flow path further includes a fourth branch flow path 20C connected in parallel with the third branch flow path 20B; the second main flow path 20A, the third branch flow path 20B and the fourth branch flow path 20C are respectively connected to the electronic three-way valve; the second radiator 22 is arranged on the fourth branch flow path 20C.

[0045] Specifically, the low-temperature cooling module may further include a second three-way valve 26, a third three-way valve 27, and a fourth three-way valve 28. The second three-way valve 26 is disposed on the third branch flow path 20B and is located behind the heat exchanger 11 on the third branch flow path 20B. The fourth branch flow path 20C flows through the second three-way valve 26, i.e., the third branch flow path 20B and the fourth branch flow path 20C are merged through the second three-way valve 26.

[0046] Optionally, the third three-way valve 27 is arranged after the second three-way valve 26, and the third branch flow path 20B and the fourth branch flow path 20C after converging are further separated by the third three-way valve 27 to form the second main flow path 20A and the fifth branch flow path 20D.

[0047] Optionally, the fourth three-way valve 28 is arranged on the second main flow path 20A and is located in front of the electronic three-way valve 21 on the second main flow path 20A. The fifth branch flow path 20D flows through the fourth three-way valve 28, that is, the fifth branch flow path 20D and the second main flow path 20A are converged through the fourth three-way valve 28.

[0048] Furthermore, as shown in Figure 1, second main flow path 20A connects to the motor electronic control assembly 19 and then flows to the electronic three-way valve 21. The electronic three-way valve 21 can be an electronically controlled device and includes a sixth port F through an eighth port H. After the second main flow path 20A flows into the sixth port F, the coolant flows out of the seventh port G to form the third branch flow path 20B described above, and the coolant flows out of the eighth port H to form the fourth branch flow path 20C described above.

[0049] When the motor electronic control assembly 19 is started, the low-temperature cooling module can include two methods: waste heat utilization or low-temperature heat dissipation. The sensor can detect the temperature of the coolant flowing out of the motor electronic control assembly 19 (hereinafter referred to as the second actual water temperature), and then compare it with the second preset water temperature mentioned above through the control system. Therefore, waste heat utilization will include the following situations: when the second actual water temperature is greater than or equal to the second preset water temperature, and there is a heating demand in the passenger cabin or a heating demand in the battery pack, the sixth port F and the seventh port G are connected, that is, the third branch flow path 20B participates in the heat exchange cycle, while the fourth branch flow path 20C does not participate in the heat exchange cycle.

[0050] In one embodiment, referring to Figures 1 and 2 , a charging and power supply assembly 47 (OBC-DC), a rear electronic control 48, a rear motor oil cooling plate 49, and an electric-mixing oil cooling plate 50 may also be provided on the second main flow path 20A. The charging and power supply assembly 47, the rear electronic control 48, the rear motor oil cooling plate 49, and the electric-mixing oil cooling plate 50 are connected in series on the second main flow path.

[0051] In one embodiment, the low-temperature cooling module also includes an electronic two-way valve 23 and a third radiator 24; the electronic two-way valve 23, the third radiator 24 and the water-cooled intercooler 25 are all arranged on the fifth branch flow path 20D; the fifth branch flow path 20D and the second main flow path 20A merge and flow into the electronic three-way valve, and the electronic two-way valve is used to open or block the fifth branch flow path.

[0052] Specifically, the fifth branch flow path 20D is sequentially provided with an electronic two-way valve 23, a third radiator 24, and a water-cooled intercooler 25. The third radiator 24 can exchange heat with an air-cooled condenser 46. The water-cooled intercooler 25 can be connected to a throttle 44 and a supercharger 45.

[0053] Based on the above embodiment, when the second actual water temperature is greater than or equal to the second preset water temperature, and there is a heating demand in the passenger cabin or a heating demand in the battery pack, the electronic two-way valve 23 may be closed, so that the third radiator 24 is not started, thereby providing more heat for the passenger cabin or the battery pack.

[0054] In one embodiment, referring to FIG. 1 and FIG. 2 , the low-temperature cooling module further includes a third water pump 29 , which is disposed after the second three-way valve 26 described above.

[0055] In one embodiment, the low-temperature cooling module is also used to cool the intelligent driving controller 31. The low-temperature cooling module also includes a first throttle valve 32. The second main flow 20A connects the first throttle valve 32 and the intelligent driving controller 31. The intelligent driving controller 31 is connected in parallel with the first throttle valve 32.

[0056] Specifically, the vehicle thermal management system may further include a modular drivetrain concept (MDC) 31 . The low-temperature cooling module may cool the MDC 31 and transfer the heat exchanged to the heat exchanger 11 .

[0057] As shown in Figure 1, on the second main flow path 20A, the first throttle valve 32 is located behind the motor electronic control assembly 19, and the intelligent driving controller 31 is connected in parallel with the first throttle valve 32. It should be explained that the coolant flow rate that can pass through the intelligent driving controller 31 is smaller than that of the motor electronic control assembly 19. If the intelligent driving controller 31 is directly connected in series in the flow path, the flow resistance will increase, thereby affecting the flow rate of the flow path. Therefore, in order to reduce the impact of the intelligent driving controller 31 on the flow resistance in the low-temperature cooling module and meet the intelligent driving controller 31's own flow rate requirements, it is necessary to connect the first throttle valve 32 in parallel with the intelligent driving controller 31 to reduce the flow resistance in the low-temperature cooling module and match the cooling flow rate requirements of the intelligent driving controller 31, making the thermal management system provided by this application highly compatible.

[0058] In one embodiment, please refer to Figures 3 to 5, the vehicle thermal management system also includes a high-temperature cooling module, a warm air module and a multi-way valve 15. The multi-way valve 15 is connected between the high-temperature cooling module and the warm air module. The multi-way valve 15 is used to connect or disconnect the high-temperature cooling module and the warm air module.

[0059] In one embodiment, please refer to Figures 3 to 5, the high-temperature cooling module includes an engine cooling flow channel 2 and a first cooling flow path 3, and the first cooling flow path 3 is connected to the engine cooling flow channel 2; the warm air module includes a first warm air core 10 and a first warm air flow path 12, and the first warm air flow path 12 and the first cooling flow path 3 are selectively connected through a multi-way valve 15, and the first warm air flow path 12, the first warm air core 10, and the heat exchanger 11 are selectively connected through the multi-way valve 15, and the first warm air core 10 is used to heat the passenger compartment.

[0060] The engine cooling channel 2 is provided within the engine body 1 to cool the engine body 1. The high-temperature cooling module cools the engine body 1 and transfers the heat removed from the engine body 1 to the heater module. As can be appreciated, the engine body 1 generates a significant amount of heat during operation, which can cause the internal temperature of the engine body 1 to rise rapidly. The first cooling channel 3, flowing through the engine body 1 (and into the engine cooling channel 2), is used to remove this heat, both cooling the engine and exchanging heat with other modules.

[0061] As shown in FIG. 3 , in the heater module, the first warm air flow path 12 is connected to the first cooling flow path 3 , that is, the coolant flows out of the engine cooling channel 2 through the first cooling flow path 3 and then flows into the first warm air flow path 12 .

[0062] Optionally, the first warm air flow path 12 can be connected in series or in parallel with the first cooling flow path 3. It should be noted that in a series configuration, the first cooling flow path 3 comprises two separate segments: the first segment flowing out of the engine cooling flow path 2 and the second segment flowing into the engine cooling flow path 2. The first warm air flow path 12 connects the first and second segments end to end, respectively. In a parallel configuration, the first cooling flow path 3 is a complete segment, and the first warm air flow path 12 operates in parallel with the first cooling flow path 3.

[0063] Optionally, the first warm air flow path 12 is connected to the first warm air core 10 and / or the heat exchanger 11. It is understandable that the coolant can flow through the first warm air core 10, the heat exchanger 11, or both via the first warm air flow path 12.

[0064] Optionally, the first warm air core 10 and the heat exchanger 11 can be connected in series or in parallel on the first warm air flow path 12. It will be appreciated that in a series configuration, the first warm air flow path 12 is a single path, flowing sequentially through the first warm air core 10 and the heat exchanger 11 (or sequentially through the heat exchanger 11 and the first warm air core 10). In a parallel configuration, the first warm air flow path 12 can be divided into two paths, each flowing sequentially through the first warm air core 10 and the heat exchanger 11.

[0065] As shown in FIG. 1 and FIG. 3 , the low-temperature cooling module and the warm air module may share a heat exchanger 11 .

[0066] In this embodiment, when the hybrid electric vehicle is in hybrid electric vehicle (HEV) mode, that is, the engine and motor electronic control assembly 19 are started simultaneously, the first cooling flow path 3 can transfer heat generated by the engine body 1 to the passenger compartment through the first heater core 10 and / or the heat exchanger 11 to achieve heating. Alternatively, when only the engine is started, heat is transferred to the battery pack via the heat exchanger 11 to achieve battery pack preheating. At the same time, the second cooling flow path 20 can transfer heat generated by the motor electronic control assembly 19 to the passenger compartment through the heat exchanger 11 to achieve heating, and transfer heat to the battery pack via the heat exchanger 11 to achieve battery pack preheating.

[0067] In this embodiment, when the hybrid vehicle is in electric vehicle (EV) mode, the second cooling flow path 20 can transfer the heat generated by the motor and electronic control components 19 to the passenger compartment through the heat exchanger 11 to achieve heating, and transfer the heat to the battery pack through the heat exchanger 11 to achieve battery pack preheating.

[0068] The present application connects the first cooling flow path 3 through the first warm air flow path 12, so that heat transfer can be carried out between the high-temperature cooling module and the warm air module, and a first warm air core 10 is set in the warm air module, so that the waste heat transferred by the engine body 1 can be used to heat the passenger compartment through the first warm air core 10, thereby realizing the waste heat utilization of engine heating; at the same time, by setting a heat exchanger 11, and the warm air module and the low-temperature cooling module share the heat exchanger 11, the waste heat utilization rate of the engine and the motor electronic control component 19 is further improved. In the various usage scenarios of hybrid vehicles, setting a shared heat exchanger 11 is more conducive to improving the waste heat utilization efficiency.

[0069] In one embodiment, please refer to Figures 3 to 5, the warm air module also includes a heater 13, and the first warm air flow path 12 includes a first main flow path 12A, a first warm air branch flow path 12B and a second warm air branch flow path 12C; the first main flow path 12A is connected to the first cooling flow path 3, the first warm air core 10 is arranged on the first warm air branch flow path 12B, and the heat exchanger 11 is arranged on the second warm air branch flow path 12C; the first main flow path 12A is divided after passing through the heater 13 to form the first warm air branch flow path 12B and the second warm air branch flow path 12C; when the water temperature on the first cooling flow path is greater than or equal to the first preset water temperature, the heater 13 stops; when the water temperature on the first cooling flow path 3 is lower than the first preset water temperature, the heater 13 starts.

[0070] Specifically, as shown in Figure 1, first main flow path 12A communicates with first cooling flow path 3. Coolant flows from engine cooling channel 2 via first cooling flow path 3 and then flows along first main flow path 12A. Heater 13 is provided on first main flow path 12A. Coolant on first main flow path 12A also flows through heater 13.

[0071] Optionally, the heating module further includes a first three-way valve 14. After passing through the heater 13, the first main flow 12A is split into a first warm air branch flow 12B and a second warm air branch flow 12C by the first three-way valve 14. It is understood that the first warm air core 10 and the heat exchanger 11 are connected in parallel.

[0072] Furthermore, when the engine is started, the heating module can include two heating modes: engine heating or heater 13 heating.

[0073] Optionally, the high-temperature cooling module also includes a water outlet thermostat 9. As will be understood, a thermostat is a valve that controls the coolant flow path. It is an automatic temperature-regulating device, typically containing a temperature-sensing component that opens and closes the flow of air, gas, or liquid based on thermal expansion or contraction. The water outlet thermostat 9 is located in the first cooling flow path 3, behind the engine cooling channel 2, so it can detect the temperature of the coolant flowing out of the engine cooling channel 2.

[0074] The outlet thermostat 9 and the intermediate heater 13 can be connected by electrical signals. The outlet thermostat 9 can collect the temperature of the coolant flowing out of the engine cooling channel 2 (hereinafter referred to as the first actual water temperature), and then compare it with the first preset water temperature mentioned above through the control system. Therefore, the following situations may occur:

[0075] (1) When the first actual water temperature is greater than or equal to the first preset water temperature, the engine waste heat utilization requirement is met, and the heater 13 does not need to be started. The heat of the high-temperature cooling module can be provided to the warm air module to realize the engine heating waste heat utilization.

[0076] (2) When the first actual water temperature is lower than the first preset water temperature, the engine waste heat utilization requirement is not met, and there is a passenger cabin heating requirement or a battery pack heating requirement, the heater 13 is started to heat the passenger cabin and the battery pack.

[0077] In one embodiment, referring to FIG. 3 to FIG. 5 , the heating module further includes a first water pump 16 , which is disposed on the first main flow path 12A, that is, the first main flow path 12A flows through the first water pump 16 and the heater 13 .

[0078] In one embodiment, the multi-way valve 15 is an electronic five-way valve, which includes a first port A, a second port B, a third port C, a fourth port D, and a fifth port E. The first cooling flow path is connected to the fifth port, the first main flow path is connected to the fourth port, the first warm air branch flow path is connected to the third port, the second warm air branch flow path is connected to the second port, and the first port is connected to the first cooling flow path. The electronic five-way valve has a first state and a second state. In the first state, the fourth port is connected to the fifth port, and the first, second, and third ports are connected. The first cooling flow path 3 flows into the fifth port E and then flows out of the fourth port D to form the first main flow path 12A. The first warm air branch flow path 12B flows into the third port C, and the second warm air branch flow path 12C flows into the second port B and then flows out of the first port A to the first cooling flow path 3. In the second state, the first port is connected to the fifth port, the second port, the third port and the fourth port are connected, the first cooling flow path 3 flows into the fifth port E and then flows out from the first port A, the first warm air branch flow path 12B flows into the third port C and the second warm air branch flow path 12C flows into the second port B and then flows out from the fourth port D and merges into the first main flow path 12A.

[0079] Specifically, the multi-way valve 15 can be an electronically controlled device, including first through fifth ports A and E. The fifth port E and fourth port D can be connected, so that after the first cooling channel 3 flows into the fifth port E, the coolant can flow out of the fourth port D to form the first main channel 12A described above. The first port A, second port B, and third port C can be connected, so that after the first warm air branch channel 12B flows into the third port C and the second warm air branch channel 12C flows into the second port B, the coolant can flow out of the fourth port D and rejoin the first cooling channel 3.

[0080] Furthermore, based on the above embodiment, the working mode of the multi-way valve 15 in the two modes of engine heating or heater 13 heating can be:

[0081] (1) When the first actual water temperature is greater than or equal to the first preset water temperature, the engine's waste heat utilization requirement is met and the passenger compartment needs to be heated. The heater 13 does not need to be started, the fifth port E and the fourth port D are connected, and the third port C and the first port A are connected, that is, the first warm air branch flow path 12B participates in the heat exchange cycle.

[0082] (2) When the first actual water temperature is greater than or equal to the first preset water temperature, the engine's waste heat utilization requirement is met, the battery pack needs to be heated, and the heater 13 does not need to be started. The fifth port E and the fourth port D are connected, and the second port B and the first port A are connected, that is, the second warm air branch path 12C participates in the heat exchange cycle.

[0083] (3) When the first actual water temperature is greater than or equal to the first preset water temperature, the engine's waste heat utilization requirement is met, and the passenger compartment and battery pack need to be heated. The heater 13 does not need to be started, the fifth port E and the fourth port D are connected, and the second port B, the third port C and the first port A are connected, that is, the first warm air branch path 12B and the second warm air branch path 12C both participate in the heat exchange cycle.

[0084] (4) When the first actual water temperature is lower than the first preset water temperature, the engine waste heat utilization requirement is not met and the cabin needs to be heated. The heater 13 is started, the fifth port E and the fourth port D are connected, and the third port C and the first port A are connected, that is, the first warm air branch flow path 12B participates in the heat exchange cycle.

[0085] (5) When the first actual water temperature is lower than the first preset water temperature, the waste heat utilization requirement of the engine is not met and the battery pack needs to be heated. The heater 13 is started, the fifth port E and the fourth port D are connected, and the second port B and the first port A are connected, that is, the second warm air branch path 12C participates in the heat exchange cycle.

[0086] (6) When the first actual water temperature is lower than the first preset water temperature, the engine waste heat utilization requirement is not met, and cabin heating and battery pack heating are required. The heater 13 is started, the fifth port E and the fourth port D are connected, and the second port B, the third port C and the first port A are connected, that is, the first warm air branch path 12B and the second warm air branch path 12C both participate in the heat exchange cycle.

[0087] By setting a multi-way valve 15 in the thermal management system and determining whether the temperature controls the conduction or blocking of the ports in the multi-way valve 15, not only can the above-mentioned thermal management system's various working modes be realized, but the multi-way valve 15 also has a fast response speed and higher working efficiency than other valves, and can effectively reduce heat loss.

[0088] In one embodiment, referring to Figure 4 , the high-temperature cooling module further includes an engine oil cooler 4. The first cooling flow path 3 passes through the engine oil cooler 4 and then connects to the multi-way valve 15. Specifically, based on the above embodiment, the engine oil cooler 4 is located in front of the fifth port E in the direction of the first cooling flow path 3.

[0089] In one embodiment, please refer to Figure 3, the high-temperature cooling module also includes an engine oil cooler 4 and an exhaust gas recirculation cooler 5, and the first cooling flow path 3 includes a first branch flow path 3A and a second branch flow path 3B. The first branch flow path 3A is connected to the multi-way valve 15 after passing through the exhaust gas recirculation cooler 5, and the second branch flow path 3B is merged with the flow path flowing out of the first port A after passing through the engine oil cooler 4.

[0090] Specifically, based on the above embodiment, the first warm air flow path 12 is connected in parallel with the first cooling flow path 3. The engine oil cooler 4 is located behind the engine cooling flow path 2 in the direction of the first cooling flow path 3. Furthermore, the warm air module and exhaust gas recirculation cooler 5 are connected in series, while the two are connected in parallel with the engine oil cooler 4.

[0091] In one embodiment, referring to FIG. 3 to FIG. 5 , the high-temperature cooling module further includes a first radiator 6 and a third cooling flow path 7 , and the third cooling flow path 7 is connected to the engine cooling flow channel 2 and the first radiator 6 in sequence.

[0092] Specifically, based on the above embodiment, the coolant flowing out of the water outlet thermostat 9 can be divided into two streams, namely the first cooling flow path 3 and the third cooling flow path 7. The third cooling flow path 7 flowing out of the first radiator 6 merges with the first cooling flow path 3 flowing out of the first warm air flow path 12 and then flows into the engine cooling channel 2, thus completing the large-circuit system. Therefore, it is understandable that the first radiator 6 and the warm air module can be connected in parallel.

[0093] In one embodiment, please refer to Figures 1 and 3, the vehicle thermal management system also includes a degassing module, the degassing module includes a second throttle valve 34, a third main flow path 35, a sixth branch flow path 36 and a seventh branch flow path 37, the third main flow path 35 is connected to the engine cooling channel 2 and the second throttle valve 34 in sequence, and is divided into a sixth branch flow path 36 and a seventh branch flow path 37 after passing through the second throttle valve 34, the first radiator 6 is arranged on the sixth branch flow path 36, and the heat exchanger 11 is arranged on the seventh branch flow path 37.

[0094] Specifically, as shown in FIG1 and FIG3 , the degassing module is the dotted portion in the figure, and a gas-liquid mixture may be introduced into the degassing module, which is mainly used to discharge excess gas in other modules.

[0095] Optionally, the degassing module may include two parts, the first part is applied to the high-temperature cooling module and the warm air module, and includes a first water tank 33, a second throttle valve 34, a third main flow path 35, a sixth branch flow path 36 and a seventh branch flow path 37.

[0096] Optionally, the third main flow path 35 is connected to the engine cooling channel 2, the second throttle valve 34 and the first water tank 33 in sequence, and the first water tank 33 can re-supply coolant to the first cooling flow path 3 mentioned above.

[0097] Optionally, the first part may further include a fifth three-way valve and a sixth three-way valve. Both the fifth three-way valve and the sixth three-way valve are disposed on the third main flow path 35 , and the fifth three-way valve can branch out a sixth branch flow path 36 , and the sixth three-way valve can branch out a seventh branch flow path 37 .

[0098] In existing technology, the cooling degassing flow rate in the engine body 1 (engine cooling channel 2) is high, and components with high water pressure have low degassing efficiency, which makes the thermal management system prone to water leakage. Therefore, this application provides a second throttle valve 34 on the third main flow path 35 connected to the engine body 1 (engine cooling channel 2) to reduce the flow rate in the engine cooling system's degassing circuit.

[0099] In one embodiment, please refer to Figures 3 to 5, the degassing module also includes a first one-way valve 38 and a second one-way valve 39, the sixth branch 36 is connected to the first one-way valve 38 and the first radiator 6 in sequence, and the seventh branch 37 is connected to the second one-way valve 39 and the heat exchanger 11 in sequence.

[0100] Specifically, a first one-way valve 38 is provided on the sixth branch flow path 36 to prevent backflow of fluid in the first radiator 6, thereby reducing heat reflux. A second one-way valve 39 is provided on the seventh branch flow path 37 to prevent backflow of fluid in the heat exchanger 11, thereby reducing heat reflux. Thus, by providing the first and second one-way valves 38, 39, and the aforementioned second throttle valve 34, problems such as excessive flow and water crossflow can be resolved, thereby improving degassing efficiency.

[0101] In one embodiment, referring to FIG. 1 and FIG. 3 , the degassing module further includes a second portion, which is applied to the low-temperature cooling module and includes a second water tank 40 , a third throttle valve 41 , a ninth branch flow path 42 , and an eighth branch flow path 43 .

[0102] Optionally, the ninth branch flow path 42 is connected in sequence to the water-cooled intercooler 25, the third throttle valve 41 and the second water tank 40, and the second water tank 40 can re-supply coolant to the second cooling flow path 20 mentioned above.

[0103] Optionally, the second part may further include a seventh three-way valve. The seventh three-way valve is disposed on the ninth branch flow path 42 and can branch out an eighth branch flow path 43 , which is connected to the second radiator 22 .

[0104] Optionally, the second three-way valve 26 mentioned above may be a four-way valve, and the flow path out of the second water tank 40 may be connected to the four-way valve.

[0105] In one embodiment, referring to Figure 5 , the heater module further includes a second heater core 17 disposed on the first heater flow path 12. Specifically, the second heater core 17 can be connected in parallel with the first heater core 10, namely, connected via a three-way valve and a branch flow path. It is understood that the first heater core 10 can be the front heater core, primarily providing heating for the front row of the passenger compartment; the second heater core 17 can be the rear heater core, primarily providing heating for the rear row of the passenger compartment.

[0106] In one embodiment, the present application also provides a vehicle, including the vehicle thermal management system in the above embodiments.

[0107] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", and "outside" are based on the orientation or positional relationship of the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0108] The above disclosure is only one embodiment of the present application, and it is certainly not intended to limit the scope of the rights of the present application. A person skilled in the art can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present application are still within the scope of the application.

Claims

1. A vehicle thermal management system, characterized in that: The invention comprises a low-temperature cooling module, wherein the low-temperature cooling module comprises a water-cooled intercooler (25), a low-temperature heat dissipation component and a second cooling flow path (20), wherein the second cooling flow path (20) comprises a second main flow path (20A) and a fifth branch flow path (20D) connected in parallel, wherein the water-cooled intercooler (25) is arranged on the fifth branch flow path (20D), and the low-temperature heat dissipation component is arranged on the second main flow path (20A), and wherein the low-temperature heat dissipation component comprises at least one of a charging and power supply component (47), a rear electric control (48), a rear motor oil cooling plate (49) and an electric-mixing oil cooling plate (50).

2. The vehicle thermal management system according to claim 1, characterized in that: The low-temperature cooling module also includes a motor electronic control component (19), and the second cooling flow path (20) flowing through the motor electronic control component (19) is used to cool the motor electronic control component (19).

3. The vehicle thermal management system according to claim 1 or 2, characterized in that: The charging and power supply component (47), the rear electric control (48), the rear motor oil cooling plate (49) and the electric mixed oil cooling plate (50) are connected in series on the second main flow path (20A).

4. The vehicle thermal management system according to any one of claims 1 to 3, characterized in that: The low-temperature cooling module also includes a heat exchanger (11), the second cooling flow path (20) includes a third branch flow path (20B) connected in series with the fifth branch flow path (20D), the heat exchanger (11) is arranged on the third branch flow path (20B), and the heat exchanger (11) is used to exchange heat with the air conditioning system and / or the battery system.

5. The vehicle thermal management system according to claim 4, characterized in that: The low-temperature cooling module further comprises an electronic three-way valve (21) and a second radiator (22); the second cooling flow path (20) further comprises a fourth branch flow path (20C) connected in parallel with the third branch flow path (20B); the second main flow path (20A), the third branch flow path (20B) and the fourth branch flow path (20C) are respectively connected to the electronic three-way valve (21); and the second radiator (22) is arranged on the fourth branch flow path (20C).

6. The vehicle thermal management system according to any one of claims 1 to 5, characterized in that: The low-temperature cooling module further comprises an electronic two-way valve (23) and a third radiator (24); the electronic two-way valve (23), the third radiator (24) and the water-cooled intercooler (25) are all arranged on the fifth branch flow path (20D); the fifth branch flow path (20D) and the second main flow path (20A) merge and flow into the electronic three-way valve (21); the electronic two-way valve (23) is used to open or block the fifth branch flow path (20D).

7. The vehicle thermal management system according to claim 5 or 6, characterized in that: The low-temperature cooling module also includes a second three-way valve (26), a third three-way valve (27) and a fourth three-way valve (28); the second three-way valve (26) is arranged on the third branch flow path (20B) and is located behind the heat exchanger (11) on the third branch flow path (20B); the third branch flow path (20B) and the fourth branch flow path (20C) are converged through the second three-way valve (26).

8. The vehicle thermal management system according to claim 7, characterized in that: The low-temperature cooling module further comprises a third water pump (29), and the third water pump (29) is arranged after the second three-way valve (26).

9. The vehicle thermal management system according to any one of claims 1 to 8, characterized in that: The low-temperature cooling module is also used to cool the intelligent driving controller (31), and the low-temperature cooling module also includes a first throttle valve (32), the second main flow path (20A) is connected to the first throttle valve (32) and the intelligent driving controller (31), and the intelligent driving controller (31) is connected in parallel with the first throttle valve (32).

10. The vehicle thermal management system according to any one of claims 1 to 9, characterized in that: The vehicle thermal management system further comprises a high-temperature cooling module, a warm air module and a multi-way valve (15), wherein the multi-way valve (15) is connected between the high-temperature cooling module and the warm air module, and the multi-way valve (15) is used to connect or disconnect the high-temperature cooling module and the warm air module.

11. The vehicle thermal management system according to claim 10, characterized in that: The high-temperature cooling module comprises an engine cooling channel (2) and a first cooling channel (3), wherein the first cooling channel (3) is connected to the engine cooling channel (2); the warm air module comprises a first warm air core (10) and a first warm air channel (12), wherein the first warm air channel (12) and the first cooling channel (3) are selectively connected via the multi-way valve (15), and the first warm air channel (12), the first warm air core (10), and the heat exchanger (11) are selectively connected via the multi-way valve (15), and the first warm air core (10) is used to heat the passenger compartment.

12. The vehicle thermal management system according to claim 11, characterized in that: The warm air module further comprises a heater (13); the first warm air flow path (12) comprises a first main flow path (12A), a first warm air branch flow path (12B) and a second warm air branch flow path (12C); the first main flow path (12A) is connected to the first cooling flow path (3); the first warm air core (10) is arranged on the first warm air branch flow path (12B); the heat exchanger (11) is arranged on the second warm air branch flow path (12C); the first main flow path (12A) is divided after passing through the heater (13) to form the first warm air branch flow path (12B) and the second warm air branch flow path (12C); when the water temperature on the first cooling flow path (3) is greater than or equal to a first preset water temperature, the heater (13) stops; when the water temperature on the first cooling flow path (3) is less than the first preset water temperature, the heater (13) starts.

13. The vehicle thermal management system according to claim 12, characterized in that: The multi-way valve (15) is an electronic five-way valve, which includes a first port (A), a second port (B), a third port (C), a fourth port (D), and a fifth port (E); the first cooling flow path (3) is connected to the fifth port (E); the first main flow path (12A) is connected to the fourth port (D); the first warm air branch flow path (12B) is connected to the third port (C); the second warm air branch flow path (12C) is connected to the second port (B); and the first port (A) is connected to the first cooling flow path (3); the electronic five-way valve includes a first state and a second state. In the first state, the fourth port (D) is in communication with the fifth port (E), and the first port (A), the second port (B) and the third port (C) are in communication with each other; In the second state, the first port (A) is connected to the fifth port (E), and the second port (B) The third port (C) and the fourth port (D) are in communication with each other.

14. The vehicle thermal management system according to claim 13, characterized in that: The high-temperature cooling module also includes an engine oil cooler (4), and the first cooling flow path (3) is connected to the electronic five-way valve after passing through the engine oil cooler (4).

15. The vehicle thermal management system according to claim 13 or 14, characterized in that: The high-temperature cooling module further comprises an engine oil cooler (4) and an exhaust gas recirculation cooler (5); the first cooling flow path (3) comprises a first branch flow path (3A) and a second branch flow path (3B); the first branch flow path (3A) passes through the exhaust gas recirculation cooler (5) and is connected to the electronic five-way valve; the second branch flow path (3B) passes through the engine oil cooler (4) and converges with the flow path flowing out of the first port (A).

16. The vehicle thermal management system according to any one of claims 11 to 15, characterized in that: The high-temperature cooling module further comprises a first radiator (6) and a third cooling flow path (7), wherein the third cooling flow path (7) is connected in sequence to the engine cooling flow channel (2) and the first radiator (6).

17. The vehicle thermal management system according to claim 16, characterized in that: The vehicle thermal management system further comprises a degassing module, the degassing module comprising a second throttle valve (34), a third main flow path (35), a sixth branch flow path (36) and a seventh branch flow path (37), the third main flow path (35) sequentially connecting the engine cooling flow channel (2) and the second throttle valve (34), and branching to form the sixth branch flow path (36) and the seventh branch flow path (37) after passing through the second throttle valve (34), the first radiator (6) being arranged on the sixth branch flow path (36), and the heat exchanger (11) being arranged on the seventh branch flow path (37).

18. The vehicle thermal management system according to claim 17, characterized in that: The degassing module further comprises a first one-way valve (38) and a second one-way valve (39); the sixth branch flow path (36) is connected in sequence to the first one-way valve (38) and the first radiator (6); and the seventh branch flow path (37) is connected in sequence to the second one-way valve (39) and the heat exchanger (11).

19. The vehicle thermal management system according to any one of claims 11 to 18, characterized in that: The warm air module further comprises a second warm air core (17), wherein the second warm air core (17) is arranged on the first warm air flow path (12).

20. A vehicle, characterized in that: Comprising a vehicle thermal management system according to any one of claims 1 to 19.

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