Vehicle heating power regulation and control system

Abstract

The utility model provides a vehicle thermal regulation and control system which comprises a fuel cell device, a power cell device and a driving device, and the fuel cell device and the power cell device are respectively connected with the driving device so as to supply power to the driving device. The thermal regulation and control system further comprises a fuel cell thermal regulation and control module, a power cell thermal regulation and control module, a driving thermal regulation and control module and a cab thermal regulation and control module which are used for regulating and controlling the temperature of the fuel cell device, the temperature of the power cell device, the temperature of the driving device and the temperature of the cab respectively. Wherein the pipeline of the fuel cell thermal regulation and control module is communicated with the pipeline of the power cell thermal regulation and control module and the pipeline of the cab thermal regulation and control module. According to the vehicle heating power regulation and control system, the battery device and the driving device of the vehicle and the heating and cooling pipeline of the cab are integrated, the system structure is simplified, parts are reduced, the energy consumption is reduced, and the energy utilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the fields of vehicles, unmanned vehicles and automatic driving, and in particular to a vehicle thermal control system. Background Art

[0002] To ensure the power of the whole vehicle, a mining vehicle powered by a hydrogen fuel cell usually uses multiple hydrogen fuel cell engines and multiple power batteries to provide power for the vehicle. When the vehicle is running in the severe cold winter, the fuel cell needs to be heated, the power battery also needs to be heated, and the cab needs to be heated. When the vehicle is running in the high temperature in the summer, the fuel cell and power battery need to be cooled, and the cab needs to be cooled.

[0003] At present, vehicles use different components to heat fuel cells and power batteries and to heat the cab, resulting in many components in the vehicle and high energy consumption. When the fuel cell is working normally, the waste heat of the fuel cell cannot be used to heat the power battery and the cab, resulting in low energy utilization and serious waste. At the same time, the vehicle's fuel cell and power battery cooling use separate cooling units, and the cab cooling uses a separate air conditioner, resulting in a complex system structure, many components, and a high failure rate.

[0004] Therefore, how to reduce the energy consumption of vehicles and improve energy utilization is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] The utility model provides a vehicle thermal control system, which simplifies the system structure, reduces parts, reduces energy consumption and improves energy utilization by integrating the vehicle's battery device, drive device and heating and cooling pipelines of the cab.

[0006] In a first aspect, the utility model provides a vehicle thermal control system, the system comprising: a fuel cell device, a power battery device and a drive device, wherein the fuel cell device and the power battery device are respectively connected to the drive device to supply power to the drive device.

[0007] The thermal control system also includes a fuel cell thermal control module, a power battery thermal control module, a drive thermal control module and a cab thermal control module.

[0008] The fuel cell thermal control module is used to control the temperature of the fuel cell device;

[0009] The power battery thermal control module is used to control the temperature of the power battery device;

[0010] The driving thermal control module is used to control the temperature of the driving device;

[0011] The cab thermal control module is used to adjust the temperature of the cab; wherein,

[0012] The pipeline of the fuel cell thermal regulation module is interconnected with the pipeline of the power battery thermal regulation module and the pipeline of the cab thermal regulation module.

[0013] Further, the fuel cell thermal control module includes a first water pump, a heater, a first three-way valve, a high-temperature radiator, a first pipeline and a second pipeline;

[0014] The first water pump is used to make the first thermal medium liquid flow in the first pipeline and the second pipeline;

[0015] The outlet of the first water pump is connected to the inlet of the heater, the outlet of the heater is connected to the inlet of the fuel cell device, the outlet of the fuel cell device is connected to the inlet of the first three-way valve, the first outlet of the first three-way valve is connected to the inlet of the first pipeline, the second outlet of the first three-way valve is connected to the inlet of the second pipeline, the high-temperature radiator is arranged in the second pipeline, and the outlet of the first pipeline and the outlet of the second pipeline are both connected to the inlet of the first water pump.

[0016] Furthermore, the cab thermal control module includes a third pipeline provided with a first heat exchanger, a second water pump, a second three-way valve and a heater core;

[0017] The second water pump is used to make the second thermal medium liquid flow in the third pipeline;

[0018] The outlet of the first heat exchanger is connected to the inlet of the second water pump, the outlet of the second water pump is connected to the inlet of the second three-way valve, the first outlet of the second three-way valve is connected to the inlet of the heater core, and the outlet of the heater core is connected to the inlet of the first heat exchanger.

[0019] Furthermore, the cab thermal control module further includes a fourth pipeline provided with a first electronic expansion valve, an evaporator, a blower, an electric compressor and a condenser;

[0020] The outlet of the first electronic expansion valve is connected to the inlet of the evaporator, the outlet of the evaporator is connected to the inlet of the electric compressor, the outlet of the electric compressor is connected to the inlet of the condenser, the outlet of the condenser is connected to the inlet of the first electronic expansion valve, and the evaporator dissipates heat through the blower.

[0021] Furthermore, the power battery device includes a first power battery device and a second power battery device, and the power battery thermal control module includes a first power battery thermal control module and a second power battery thermal control module.

[0022] The first power battery thermal control module includes a third water pump and a fifth pipeline.

[0023] The third water pump is used to make the third thermal medium liquid flow in the fifth pipeline;

[0024] The inlet of the third water pump is connected to the second outlet of the second three-way valve, the outlet of the third water pump is connected to the inlet of the first power battery device, and the outlet of the first power battery device is connected to the outlet of the heater core.

[0025] Furthermore, the power battery thermal control module further includes a second heat exchanger, a second electronic expansion valve and a sixth pipeline.

[0026] The outlet of the second electronic expansion valve is connected to the first inlet of the second heat exchanger, the first outlet of the second heat exchanger is connected to the inlet of the electric compressor, and the outlet of the condenser is connected to the inlet of the second electronic expansion valve.

[0027] The second inlet of the second heat exchanger is connected to the outlet of the first power battery device.

[0028] Furthermore, the second power battery thermal control module includes a fourth water pump, a water collector, a cooling unit and a seventh pipeline.

[0029] The fourth water pump is used to make the fourth thermal medium liquid flow in the seventh pipeline;

[0030] The first outlet of the water manifold is connected to the inlet of the fourth water pump, the outlet of the fourth water pump is connected to the inlet of the cooling unit, the outlet of the cooling unit is connected to the inlet of the second power battery device, and the outlet of the second power battery device is connected to the first inlet of the water manifold.

[0031] The second outlet of the second heat exchanger is connected to the second inlet of the water manifold, and the second outlet of the water manifold is connected to the inlet of the third water pump.

[0032] Furthermore, the driving thermal control module includes a fifth water pump, a driving motor, a motor controller, a stack boost DC-DC module, a low-temperature radiator and an eighth pipeline.

[0033] The fifth water pump is used to make the fifth thermal medium liquid flow in the eighth pipeline;

[0034] The outlet of the fifth water pump is connected to the inlet of the motor controller and the inlet of the battery stack boost DC-DC module, the outlet of the motor controller is connected to the inlet of the drive motor, the outlet of the battery stack boost DC-DC module and the outlet of the drive motor are connected to the inlet of the low-temperature radiator, and the outlet of the low-temperature radiator is connected to the inlet of the fifth water pump.

[0035] Furthermore, the system also includes a front-end cooling module, which includes the high-temperature radiator, the condenser, the low-temperature radiator and a cooling fan, and the cooling fan is used to cool the high-temperature radiator, the condenser and the low-temperature radiator.

[0036] Furthermore, the fuel cell device includes a first fuel cell stack and a second fuel cell stack. When the temperature of the first fuel cell stack or the second fuel cell stack is lower than a preset temperature threshold, the first three-way valve opens the first pipeline, closes the second pipeline, and the heater is started to heat the first thermal medium liquid in the first pipeline; when the temperature of the first fuel cell stack or the second fuel cell stack is higher than the preset temperature threshold, the first three-way valve opens the second pipeline, closes the first pipeline, and the high-temperature radiator is started to dissipate the heat of the second thermal medium liquid in the second pipeline.

[0037] The vehicle thermal control system of the utility model integrates the vehicle's battery device, drive device and heating and cooling circuits of the cab, connects the cab heating, power battery heating and fuel cell heat dissipation circuits, thereby forming a cab heating circuit, a power battery heating circuit and a fuel cell cooling circuit, and integrates the power battery pack cooling with the cab cooling to form a power battery cooling and cab cooling circuit, thereby streamlining the system structure, reducing components, lowering energy consumption and improving energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is an interactive schematic diagram of the vehicle thermal control system of the utility model;

[0039] Figure 2 It is a structural schematic diagram of the vehicle thermal control system of the utility model;

[0040] Figure 3 This is a schematic diagram of the heating mode cycle of the power battery device only of the present invention;

[0041] Figure 4 It is a schematic diagram of the cycle of the cab heating mode only of the utility model;

[0042] Figure 5 It is a schematic diagram of the cycle of the power battery device heating and cab heating modes of the utility model;

[0043] Figure 6 This is a schematic diagram of the cooling mode cycle of the power battery device only of the present invention;

[0044] Figure 7 This is a schematic diagram of the cab cooling mode only of the utility model;

[0045] Figure 8 It is a schematic diagram of the power battery device cooling and cab cooling mode cycle of the utility model;

[0046] Fig. 9 It is a schematic diagram of the heating cycle of the fuel cell device of the utility model;

[0047] Fig.10 It is a schematic diagram of the cooling cycle of the fuel cell device of the present invention.

[0048] Fig.11 It is a schematic diagram of the cooling cycle of the drive device of the utility model. DETAILED DESCRIPTION

[0049] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present utility model.

[0050] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0051] It should be understood that although the terms first, second, third, etc. may be used in the present invention to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0052] A vehicle thermal control system according to the present utility model will be described in detail below with reference to the accompanying drawings.

[0053] like Figure 1The figure is a schematic diagram of the structure of a vehicle thermal control system of the present invention. The vehicle thermal control system 10 includes a fuel cell device 11, a power battery device 12 and a drive device 13, wherein the fuel cell device 11 and the power battery device 12 are respectively connected to the drive device 13 to supply power to the drive device 13.

[0054] The vehicle thermal control system 10 further includes a fuel cell thermal control module 21, a power battery thermal control module 22, a drive thermal control module 23 and a cab thermal control module 24. The fuel cell thermal control module 21 is used to control the temperature of the fuel cell device 11; the power battery thermal control module 22 is used to control the temperature of the power battery device 12; the drive thermal control module 23 is used to control the temperature of the drive device 13; and the cab thermal control module 24 is used to adjust the temperature of the cab (not shown).

[0055] like Figure 2 As shown, Figure 1 Schematic diagram of the structure of the vehicle thermal control system 10.

[0056] refer to Figure 2 The fuel cell thermal control module 21 includes a first water pump 130, a heater 140, a first three-way valve 170, a high-temperature radiator 180, a first pipeline 110 and a second pipeline 120; the first water pump 130 is used to make the first thermal medium liquid flow in the first pipeline 110 and the second pipeline 120; the outlet of the first water pump 130 is connected to the inlet of the heater 140, the outlet of the heater 140 is connected to the inlet of the fuel cell device, the outlet of the fuel cell device is connected to the inlet of the first three-way valve 170, the first outlet of the first three-way valve 170 is connected to the inlet of the first pipeline 110, the second outlet of the first three-way valve 170 is connected to the inlet of the second pipeline 120, the high-temperature radiator 180 is arranged in the second pipeline 120, and the outlet of the first pipeline 110 and the outlet of the second pipeline 120 are both connected to the inlet of the first water pump 130.

[0057] Continue to refer Figure 2The cab thermal control module 24 includes a third pipeline 210 provided with a first heat exchanger 250, a second water pump 260, a second three-way valve 270 and a heater core 220; the second water pump 260 is used to make the second thermal medium liquid flow in the third pipeline 210; the outlet of the first heat exchanger 250 is connected to the inlet of the second water pump 260, the outlet of the second water pump 260 is connected to the inlet of the second three-way valve 270, the first outlet of the second three-way valve 270 is connected to the inlet of the heater core 220, and the outlet of the heater core 220 is connected to the inlet of the first heat exchanger 250.

[0058] Continue to refer Figure 2 The cab thermal control module 24 also includes a fourth pipeline 280 provided with a first electronic expansion valve 290, an evaporator 230, a blower 240, an electric compressor 380 and a condenser 390; the outlet of the first electronic expansion valve 290 is connected to the inlet of the evaporator 230, the outlet of the evaporator 230 is connected to the inlet of the electric compressor 380, the outlet of the electric compressor 380 is connected to the inlet of the condenser 390, the outlet of the condenser 390 is connected to the inlet of the first electronic expansion valve 290, and the evaporator 230 dissipates heat through the blower 240.

[0059] Continue to refer Figure 2 The power battery device 12 includes a first power battery device Bat1-Bat4 and a second power battery device Bat5-Bat8, and the power battery thermal regulation module 22 includes a first power battery thermal regulation module (not shown in the figure) and a second power battery thermal regulation module (not shown in the figure). The first power battery thermal regulation module includes a third water pump 320 and a fifth pipeline 310. The third water pump 320 is used to make the third thermal medium liquid flow in the fifth pipeline 310; the inlet of the third water pump 320 is connected to the second outlet of the second three-way valve 270, and the outlet of the third water pump 320 is connected to the inlet of the first power battery device Bat1-Bat4, and the outlet of the first power battery device Bat1-Bat4 is connected to the outlet of the warm air core 220.

[0060] Furthermore, the power battery thermal control module 22 also includes a second heat exchanger 330, a second electronic expansion valve 370 and a sixth pipeline 360, the outlet of the second electronic expansion valve 370 is connected to the first inlet of the second heat exchanger 330, the first outlet of the second heat exchanger 330 is connected to the inlet of the electric compressor 380, the outlet of the condenser 390 is connected to the inlet of the second electronic expansion valve 370, and the second inlet of the second heat exchanger 330 is connected to the outlet of the first power battery device Bat1-Bat4.

[0061] Furthermore, the second power battery thermal control module includes a fourth water pump 350, a water collector 340, a cooling unit 400 and a seventh pipeline 355. The fourth water pump 350 is used to make the fourth thermal medium flow in the seventh pipeline 355; the first outlet of the water collector 340 of the 350 is connected to the inlet of the fourth water pump 350, the fourth water pump outlet is connected to the inlet of the cooling unit 400, the outlet of the cooling unit 400 is connected to the inlet of the second power battery device Bat5-Bat8, the outlet of the second power battery device Bat5-Bat8 is connected to the first inlet of the water collector 340, the second outlet of the second heat exchanger 330 is connected to the second inlet of the water collector 340, and the second outlet of the water collector 340 is connected to the inlet of the third water pump 320. Continue to refer to Figure 2 The driving thermal regulation module 23 includes a fifth water pump 450, a driving motor 440, a motor controller 430, a battery stack boost DC-DC module 420, a low-temperature radiator 460 and an eighth pipeline 410. The fifth water pump 450 is used to make the fifth thermal medium liquid flow in the eighth pipeline 410; the outlet of the fifth water pump 450 is connected to the inlet of the motor controller 430 and the inlet of the battery stack boost DC-DC module 420, the outlet of the motor controller 430 is connected to the inlet of the driving motor 440, the outlet of the battery stack boost DC-DC module 420 and the outlet of the driving motor 440 are connected to the inlet of the low-temperature radiator 460, and the outlet of the low-temperature radiator 460 is connected to the inlet of the fifth water pump 450.

[0062] Continue to refer Figure 2 The vehicle thermal control system 10 also includes a front-end cooling module, which includes the high-temperature radiator 180, the condenser 390, the low-temperature radiator 460 and a cooling fan 500. The cooling fan 500 is used to cool the high-temperature radiator 180, the condenser 390 and the low-temperature radiator 460.

[0063] Continue to refer Figure 2 The fuel cell device 11 includes a first fuel cell stack 150 and a second fuel cell stack 160. When the temperature of the first fuel cell stack 150 or the second fuel cell stack 160 is lower than a preset temperature threshold, the first three-way valve 170 opens the first pipeline 110 and closes the second pipeline 120, and the heater 140 is started to heat the first thermal medium liquid in the first pipeline 110; when the temperature of the first fuel cell stack 150 or the second fuel cell stack 160 is higher than the preset temperature threshold, the first three-way valve 170 opens the second pipeline 120 and closes the first pipeline 110, and the high-temperature radiator 180 is started to dissipate the heat of the second thermal medium liquid in the second pipeline 120.

[0064] Below, see Figure 3-Figure 11 The working principle of the vehicle thermal control system 10 is described in detail.

[0065] like Figure 3 As shown, it is a schematic diagram of the cycle of the heating mode of only the power battery device 12 of the utility model. When the vehicle is running, the first battery stack 150 and the second battery stack 160 are started, and when the water temperature of the first thermal medium liquid is lower than the preset temperature threshold, if the power battery device 12 needs to be heated, the waste heat of the fuel cell device 11 is used to heat the power battery device 12.

[0066] In the present invention, the first water pump 130, the second water pump 260, the third water pump 320, and the fourth water pump 350 are turned on. After the first thermal medium liquid exchanges heat with the second thermal medium liquid of the power battery device 12 through the first heat exchanger 250, it is connected through the interface 3-2 of the first three-way valve 170 to realize diversion and directly return to the water inlet of the first water pump 130. The first thermal medium liquid circulates according to the first pipeline 110. When the temperature of the first thermal medium liquid is higher than the preset temperature threshold, it is dissipated through the high-temperature radiator 180. Thermal cooling, the higher the inlet water T1 temperature, the higher the speed of the first water pump 130, and the higher the speed of the cooling fan 500, so as to quickly cool the fuel cell device 11; in the fifth pipeline 310, the interface 3-2 of the second three-way valve 270 is connected to realize diversion, and the third and fourth thermal medium liquids heated by the first heat exchanger 250 realize heating of the power battery device 12, and the second water pump 260, the third water pump 320, and the fourth water pump 350 are adjustable speed components, and their real-time speeds are controlled according to the water inlet T4 temperature. The higher the temperature of T4 and the power battery device 12, the higher the speeds of the second water pump 260, the third water pump 320, and the fourth water pump 350.

[0067] like Figure 4 The figure is a schematic diagram of the cab heating mode of the utility model. In this mode, the first thermal medium fluid circulation loop is Figure 2 In the described embodiment, the first thermal medium liquid of the first battery stack 150 and the second battery stack 160 is heat exchanged through the first heat exchanger 250, and is connected to the interface 3-1 of the second three-way valve 270 to achieve diversion, the second water pump 260 is turned on, and the second thermal medium liquid flows through the heater core 220 to heat the cab.

[0068] like Figure 5The figure is a schematic diagram of the power battery device 12 heating and cab heating mode cycle of the utility model. In this mode, the interfaces 3-1 and 3-2 of the second three-way valve 270 are both connected to achieve simultaneous heating of the power battery device 12 and the cab. The allocation ratio of interfaces 1 and 2 is determined by the temperature inside the cab and the temperature of the power battery device 12. The first, third, and fourth thermal medium circulation loops are connected at the same time. Figure 3 The second thermal medium liquid circulation loop is the same as Figure 4 .

[0069] like Figure 6 As shown, it is a schematic diagram of the cycle of the cooling mode of only the power battery device 12 of the utility model. In this mode, the third water pump 320, the fourth water pump 350, the electric compressor 380, and the cooling unit 400 are all turned on, and the first electronic expansion valve 290 is closed. The thermal medium liquid after passing through the second electronic expansion valve 370 evaporates in the second heat exchanger 330 to cool the power battery devices Bat1-Bat4, and the thermal medium liquid returns to the electric compressor 380. After the compressed thermal medium liquid is condensed by the condenser 390, it flows into the second electronic expansion valve 370 to complete the whole cycle; the third thermal medium liquid after cooling flows into the water collector 340, and is pressurized by the fourth water pump 350 to flow into the second power battery device, and flows back to the water collector 340 after cooling the second power battery devices Bat5-Bat8. In this working mode, the interface 3 - 2 of the second three-way valve 270 is closed to prevent the first thermal medium fluid of the fuel cell device 11 from heating the second thermal medium fluid and affecting the cooling effect of the power battery device.

[0070] like Figure 7 The figure shows a schematic diagram of the cab cooling mode of the utility model. In this mode, the second electronic expansion valve 370, the first water pump 130, and the second water pump 260 are all closed, and the thermal medium liquid evaporates in the evaporator 230 after passing through the first electronic expansion valve 290, and exchanges heat with the high-temperature hot air in the cab to achieve cooling of the cab. The evaporated thermal medium liquid flows back to the electric compressor 380, is compressed by the electric compressor 380, and dissipates heat through the condenser 390. After dissipating heat through the condenser 390, it flows into the first electronic expansion valve 290 to complete the entire cycle.

[0071] like Figure 8 As shown, it is a schematic diagram of the power battery device 12 cooling and cab cooling mode cycle of the utility model. In this mode, the power battery device 12 cooling cycle circuit is Figure 6 The cab cooling circuit is the same Figure 7 .

[0072] like Fig. 9 As shown, it is a schematic diagram of the heating cycle of the fuel cell device 11 of the utility model. When operating in this mode, the temperature of the first thermal medium liquid is lower than the preset temperature threshold. In order to prevent the first thermal medium liquid from losing heat when passing through the high-temperature radiator 180, the first thermal medium liquid does not flow through the high-temperature radiator 180, and the heater 140 is turned on, and the interface 3-2 of the first three-way valve 170 is connected, so that the fuel cell device 11 can be quickly heated up.

[0073] like Fig.10 As shown, it is a schematic diagram of the cooling cycle of the fuel cell device 11 of the utility model. When the temperature of the first thermal medium liquid is higher than the preset temperature threshold, the heater 140 is turned off, and the interface 3-1 of the first three-way valve 170 is connected, and the heat is dissipated through the high-temperature radiator 180 to achieve cooling of the fuel cell device 11.

[0074] like Fig.11 As shown, it is a schematic diagram of the cooling cycle of the drive device 13 of the utility model. When the temperature of the drive motor 440, the motor controller 430, and the stack boost DC-DC module 420 is higher than the normal working temperature, the fifth water pump 450 and the corresponding heat dissipation fan 500 are turned on. The rotation speeds of the fifth water pump 450 and the heat dissipation fan 500 are controlled according to the inlet temperature T6 to achieve rapid cooling of the drive device 13.

[0075] The utility model provides a vehicle thermal control system, which connects the cab heating, power battery heating and fuel cell heat dissipation circuits to form a cab heating circuit, a power battery heating circuit and a fuel cell cooling circuit. By integrating the power battery pack cooling with the cab cooling, a power battery cooling and cab cooling circuit is formed, which simplifies the system structure, reduces parts, reduces energy consumption and improves energy utilization.

[0076] In the embodiments provided by the present utility model, it should be understood that the disclosed device / electronic device The device / electronic device embodiments described above are merely illustrative, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms.

[0077] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0078] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0079] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A vehicle thermal control system, characterized in that: The system comprises: a fuel cell device, a power battery device and a driving device, wherein the fuel cell device and the power battery device are respectively connected to the driving device to supply power to the driving device. The thermal control system also includes a fuel cell thermal control module, a power battery thermal control module, a drive thermal control module and a cab thermal control module. The fuel cell thermal control module is used to control the temperature of the fuel cell device; The power battery thermal control module is used to control the temperature of the power battery device; The driving thermal control module is used to control the temperature of the driving device; The cab thermal control module is used to adjust the temperature of the cab; wherein, The pipeline of the fuel cell thermal regulation module is interconnected with the pipeline of the power battery thermal regulation module and the pipeline of the cab thermal regulation module.

2. The system according to claim 1, characterized in that The fuel cell thermal control module includes a first water pump, a heater, a first three-way valve, a high-temperature radiator, a first pipeline and a second pipeline; The first water pump is used to make the first thermal medium liquid flow in the first pipeline and the second pipeline; The outlet of the first water pump is connected to the inlet of the heater, the outlet of the heater is connected to the inlet of the fuel cell device, the outlet of the fuel cell device is connected to the inlet of the first three-way valve, the first outlet of the first three-way valve is connected to the inlet of the first pipeline, the second outlet of the first three-way valve is connected to the inlet of the second pipeline, the high-temperature radiator is arranged in the second pipeline, and the outlet of the first pipeline and the outlet of the second pipeline are both connected to the inlet of the first water pump.

3. The system according to claim 2, characterized in that The cab thermal control module includes a third pipeline provided with a first heat exchanger, a second water pump, a second three-way valve and a heater core; The second water pump is used to make the second thermal medium liquid flow in the third pipeline; The outlet of the first heat exchanger is connected to the inlet of the second water pump, the outlet of the second water pump is connected to the inlet of the second three-way valve, the first outlet of the second three-way valve is connected to the inlet of the heater core, and the outlet of the heater core is connected to the inlet of the first heat exchanger.

4. The system according to claim 3, characterized in that The cab thermal control module further includes a fourth pipeline provided with a first electronic expansion valve, an evaporator, a blower, an electric compressor and a condenser; The outlet of the first electronic expansion valve is connected to the inlet of the evaporator, the outlet of the evaporator is connected to the inlet of the electric compressor, the outlet of the electric compressor is connected to the inlet of the condenser, the outlet of the condenser is connected to the inlet of the first electronic expansion valve, and the evaporator dissipates heat through the blower.

5. The system according to claim 3, characterized in that The power battery device includes a first power battery device and a second power battery device, and the power battery thermal regulation module includes a first power battery thermal regulation module and a second power battery thermal regulation module. The first power battery thermal control module includes a third water pump and a fifth pipeline. The third water pump is used to make the third thermal medium liquid flow in the fifth pipeline; The inlet of the third water pump is connected to the second outlet of the second three-way valve, the outlet of the third water pump is connected to the inlet of the first power battery device, and the outlet of the first power battery device is connected to the outlet of the heater core.

6. The system according to claim 5, characterized in that The power battery thermal control module also includes a second heat exchanger, a second electronic expansion valve and a sixth pipeline. The outlet of the second electronic expansion valve is connected to the first inlet of the second heat exchanger, the first outlet of the second heat exchanger is connected to the inlet of the electric compressor, and the outlet of the condenser is connected to the inlet of the second electronic expansion valve. The second inlet of the second heat exchanger is connected to the outlet of the first power battery device.

7. The system according to claim 6, characterized in that The second power battery thermal control module includes a fourth water pump, a water collector, a cooling unit and a seventh pipeline. The fourth water pump is used to make the fourth thermal medium liquid flow in the seventh pipeline; The first outlet of the water manifold is connected to the inlet of the fourth water pump, the outlet of the fourth water pump is connected to the inlet of the cooling unit, the outlet of the cooling unit is connected to the inlet of the second power battery device, and the outlet of the second power battery device is connected to the first inlet of the water manifold. The second outlet of the second heat exchanger is connected to the second inlet of the water manifold, and the second outlet of the water manifold is connected to the inlet of the third water pump.

8. The system according to any one of claims 1 to 7, characterized in that The driving thermal control module includes a fifth water pump, a driving motor, a motor controller, a stack boost DC-DC module, a low-temperature radiator and an eighth pipeline. The fifth water pump is used to make the fifth thermal medium liquid flow in the eighth pipeline; The outlet of the fifth water pump is connected to the inlet of the motor controller and the inlet of the battery stack boost DC-DC module, the outlet of the motor controller is connected to the inlet of the drive motor, the outlet of the battery stack boost DC-DC module and the outlet of the drive motor are connected to the inlet of the low-temperature radiator, and the outlet of the low-temperature radiator is connected to the inlet of the fifth water pump.

9. The system according to claim 8, characterized in that The system also includes a front-end cooling module, which includes a high-temperature radiator of the fuel cell thermal control module, a condenser of the cab thermal control module, the low-temperature radiator and a cooling fan, and the cooling fan is used to cool the high-temperature radiator, the condenser and the low-temperature radiator.

10. The system according to claim 2, characterized in that The fuel cell device comprises a first battery stack and a second battery stack, and when the temperature of the first battery stack or the second battery stack is lower than a preset temperature threshold, the first three-way valve opens the first pipeline and closes the second pipeline, and the heater is started to heat the first thermal medium liquid in the first pipeline; When the temperature of the first battery stack or the second battery stack is higher than the preset temperature threshold, the first three-way valve opens the second pipeline and closes the first pipeline, and the high-temperature radiator starts to dissipate the heat of the second thermal medium liquid in the second pipeline.

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