CN115366609A - Thermal management system, vehicle and control method of thermal management system - Google Patents
Thermal management system, vehicle and control method of thermal management system Download PDFInfo
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- CN115366609A CN115366609A CN202210944009.2A CN202210944009A CN115366609A CN 115366609 A CN115366609 A CN 115366609A CN 202210944009 A CN202210944009 A CN 202210944009A CN 115366609 A CN115366609 A CN 115366609A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000002826 coolant Substances 0.000 claims abstract description 80
- 239000000110 cooling liquid Substances 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000012809 cooling fluid Substances 0.000 description 10
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00885—Controlling the flow of heating or cooling liquid, e.g. valves or pumps
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Air-Conditioning For Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The application discloses a thermal management system, a vehicle and a control method of the thermal management system. The thermal management system is for a vehicle. The thermal management system comprises a first loop, a second loop, a power battery and a mixing cavity. The first circuit is used for supplying heat to a cockpit of the vehicle. The power battery is arranged in the second loop. The mixing chamber is connected to the first circuit and the second circuit, respectively, and mixes the cooling liquids in the first circuit and the second circuit. Coolant liquid in the heat management system flows to the first loop and the second loop respectively, and part coolant liquid supplies heat for the cockpit of vehicle through the first loop, and another part coolant liquid flows to power battery through the second loop after entering the hybrid chamber and mixing with the coolant liquid of second loop for the coolant liquid temperature in second loop is suitable, keeps warm in order to heat power battery.
Description
Technical Field
The present application relates to the field of vehicle technologies, and more particularly, to a thermal management system, a vehicle, and a control method of a thermal management system.
Background
In the related art, the battery of the automobile needs to be maintained at a more appropriate temperature to maintain good performance. When the temperature of the battery is too low, the battery needs to be heated by hot water, and the cooling liquid in the battery absorbs the heat of the cooling liquid of the high-temperature loop in a conduction mode by virtue of the water-water heat exchanger, so that the cooling liquid of the battery is heated. However, such a solution increases the cost of the water-water heat exchanger, and at the same time, transfers heat through the water-water heat exchanger, resulting in slow heat transfer response and low heat transfer efficiency.
Disclosure of Invention
The embodiment of the application provides a thermal management system, a vehicle and a control method of the thermal management system.
The thermal management system of the embodiment of the application is used for a vehicle. The thermal management system comprises a first loop, a second loop, a power battery and a mixing cavity. The first circuit is used for supplying heat to a cockpit of the vehicle. The power battery is arranged in the second loop. The mixing chamber is connected to the first circuit and the second circuit, respectively, and mixes the cooling fluids in the first circuit and the second circuit.
In the thermal management system of the embodiment of the application, the thermal management system is used for a vehicle, cooling liquid in the thermal management system flows to the first loop and the second loop respectively, part of cooling liquid supplies heat for a cab of the vehicle through the first loop, and the other part of cooling liquid flows into the mixing cavity to be mixed with the cooling liquid of the second loop and then flows to the power battery through the second loop, so that the temperature of the cooling liquid of the second loop is proper, and the power battery is heated and kept warm.
In some embodiments, the first circuit includes a main circuit for supplying heat to the cockpit, a branch circuit connected to the mixing chamber and the second circuit, respectively, and a valve assembly for communicating the main circuit and the branch circuit and regulating the flow of coolant to the main circuit and the branch circuit, respectively.
In some embodiments, the valve assembly is a three-way valve including a first port, a second port, and a third port, the first port connecting the water inlet line, the second port connecting the main circuit, and the third port connecting the branch circuit.
In certain embodiments, the thermal management system further comprises a tee that connects the back ends of the primary and secondary circuits, respectively, and a return water line.
In certain embodiments, the valve assembly is configured to control the ratio of coolant flow into the main circuit and the branch circuit.
In certain embodiments, the thermal management system further comprises a temperature sensor for detecting a temperature of the coolant flowing in the second circuit to the power cell, and the valve assembly is configured to adjust a ratio of the coolant flowing into the main circuit and the branch circuit according to the temperature detected by the temperature sensor.
In some embodiments, the thermal management system further comprises a warm air core disposed in the primary loop, the warm air core being configured to provide heat to a cabin of the vehicle.
In some embodiments, the mixing chamber includes a first mixing port, a second mixing port, a third mixing port, and a fourth mixing port, the first mixing port and the second mixing port connecting the second loop, the third mixing port and the fourth mixing port connecting the first loop.
In some embodiments, the thermal management system further comprises a pump body disposed in the second circuit for driving a flow of coolant in the second circuit.
The vehicle of the embodiment of the application comprises a vehicle body and the thermal management system of any one of the above embodiments, wherein the thermal management system is arranged on the vehicle body.
The control method of the thermal management system according to the embodiment of the application includes:
reading a temperature value of a temperature sensor arranged in a second loop of the thermal management system, wherein the temperature sensor is used for detecting the temperature of cooling liquid flowing to a power battery arranged in the second loop;
when the temperature value is lower than the preset temperature value, adjusting a valve assembly of a first circuit of the thermal management system to improve the flow of cooling liquid entering a branch circuit of the first circuit, wherein the branch circuit is communicated with the second circuit through a mixing cavity;
adjusting the valve assembly to reduce the flow of coolant into the branch circuit when the temperature value is above the predetermined temperature value.
In the thermal management system, the vehicle and the control method of the thermal management system, the thermal management system is used for the vehicle, cooling liquid in the thermal management system flows to the first loop and the second loop respectively, part of the cooling liquid supplies heat for a cab of the vehicle through the first loop, the other part of the cooling liquid enters the mixing cavity to be mixed with the cooling liquid of the second loop, and then flows to the power battery through the second loop, so that the temperature of the cooling liquid of the second loop is proper, and the power battery is heated and kept warm.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a thermal management system according to an embodiment of the present application;
FIG. 2 is a schematic structural view of a vehicle according to an embodiment of the present application;
FIG. 3 is another schematic structural view of a thermal management system according to an embodiment of the present application;
FIG. 4 is a schematic diagram of yet another configuration of a thermal management system in accordance with an embodiment of the present application;
FIG. 5 is a block diagram of a thermal management system according to an embodiment of the present application;
fig. 6 is a flowchart illustrating a control method of the thermal management system according to the embodiment of the present application.
Description of the main element symbols:
a thermal management system 100,
The system comprises a processor 101, a first circuit 10, a main circuit 11, a branch circuit 12, a valve component 13, a first interface 131, a second interface 132, a third interface 133, a water inlet pipeline 14, a water return pipeline 15, a second circuit 20, a power battery 30, a mixing cavity 40, a first mixing interface 41, a second mixing interface 42, a third mixing interface 43, a fourth mixing interface 44, a three-way pipe 50, a temperature sensor 60, a warm air core 70, a pump body 80, a vehicle 200 and a vehicle body 201.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. To simplify the disclosure of the present application, the components and settings of a specific example are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of brevity and clarity and do not in themselves dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1 and 2, a thermal management system 100 according to an embodiment of the present application is used in a vehicle 200. The thermal management system 100 includes a first circuit 10, a second circuit 20, a power cell 30, and a mixing chamber 40. The first circuit 10 is used to supply heat to the cabin of the vehicle 200. A power cell 30 is provided in the second circuit 20. The mixing chamber 40 connects the first circuit 10 and the second circuit 20, respectively, and mixes the cooling liquids in the first circuit 10 and the second circuit 20.
In the thermal management system 100 of the embodiment of the application, the thermal management system 100 is used for a vehicle 200, the coolant in the thermal management system 100 flows to the first loop 10 and the second loop 20 respectively, part of the coolant supplies heat to a cab of the vehicle 200 through the first loop 10, and the other part of the coolant enters the mixing cavity 40 and is mixed with the coolant in the second loop 20 and then flows to the power battery 30 through the second loop 20, so that the temperature of the coolant in the second loop 20 is proper to heat and preserve the temperature of the power battery 30.
It is understood that the thermal management system 100 of the vehicle 200 may include multiple sets of tubing to perform different heating and cooling functions. For example, the vehicle 200 may provide heat to the cabin and the power battery 30 through a plurality of pipe systems to ensure the indoor temperature of the cabin and the normal operation of the power battery 30.
Specifically, in the thermal management system 100 of the present embodiment, typically the coolant used to heat the power cell 30 needs to be less than 40 ℃, while the coolant used to heat the passenger compartment needs to be greater than 60 ℃, i.e., the coolant in the first circuit 10 has a higher temperature than the coolant in the second circuit 20. It will be appreciated that after a period of coolant circulation, the temperature of the coolant will drop, at which point the mixing chamber 40 may be opened to allow the coolant in the first and second circuits 10, 20 to mix and return to the first and second circuits 10, 20, respectively. In this way, the temperature of the coolant returning to the first circuit 10 drops slightly, and the temperature of the coolant in the first circuit 10 can be restored by means of a compressor, an outdoor heat exchanger, and the like. And the temperature of the cooling liquid returning to the second loop 20 rises, so that the temperature of the cooling liquid in the second loop 20 is proper, and the power battery 30 is heated and kept warm. Of course, it is also possible to open the mixing chamber 40 from the outset so that the cooling fluid of the first circuit 10 and the second circuit 20 is always within the desired range.
Further, in the thermal management system 100 according to the embodiment of the present application, the first circuit 10 and the second circuit 20 are conducted through the mixing chamber 40, so that the coolant with a higher temperature in the first circuit 10 can be mixed with the coolant with a lower temperature in the second circuit 20, and the temperature of the coolant in the second circuit 20 is ensured to be proper. The cost of adding a water-water heat exchanger or a heater in the second loop 20 in the related art is avoided, the original pipeline system is simplified, and the cooling liquid is directly mixed together, so that the response of heat transfer is quick, and the transfer efficiency is high.
Referring to fig. 1, in some embodiments, the first circuit 10 includes a main circuit 11, a branch circuit 12, and a valve assembly 13, the main circuit 11 is configured to provide heat to the cockpit, the mixing chamber 40 is connected to the branch circuit 12 and the second circuit 20, respectively, and the valve assembly 13 is configured to communicate the main circuit 11 with the branch circuit 12 and regulate the flow of coolant to the main circuit 11 and the branch circuit 12, respectively.
In this way, the coolant in the first circuit 10 flows to the main circuit 11 and the branch circuit 12 through the valve assembly 13, respectively, so that part of the coolant can be branched off from the main circuit 11 to heat the cab, and part of the coolant can be branched off from the branch circuit 12, the coolant entering the branch circuit 12 can be mixed with the coolant in the second circuit 20 through the mixing chamber 40, and then the coolant in the second circuit 20 can be heated and kept warm for the power battery 30.
It will be appreciated that the two circuits of the thermal management system 100 are often located at different locations in the vehicle 200, and that the first circuit 10 may be divided into a main circuit 11 and a branch circuit 12, and that the branch circuit 12 may extend to a location near the second circuit 20 and communicate with the mixing chamber 40. The valve assembly 13 may divide the coolant into two parts, one part of which may be passed through the main circuit 11 to supply heat to the cabin and the other part of which may be passed through the branch circuit 12 into the mixing chamber 40.
Referring to fig. 1, in some embodiments, the valve assembly 13 is a three-way valve, the three-way valve includes a first port 131, a second port 132 and a third port 133, the first port 131 is connected to the water inlet pipe 14, the second port 132 is connected to the main circuit 11, and the third port 133 is connected to the branch circuit 12.
In this way, the coolant in the water inlet line 14 enters the three-way valve through the first connector 131, and then is branched to the main loop 11 and the branch loop 12 through the second connector 132 and the third connector 133, respectively, so as to ensure that the coolant in the water inlet line 14 can be branched to realize the two functions of heating the power battery 30 and heating the cockpit.
In the embodiment of the present application, the specific type of the valve assembly 13 is not limited, and the valve assembly 13 may also be a four-way valve or a five-way valve, etc. to meet different requirements.
Further, referring to fig. 1, in some embodiments, the thermal management system 100 further includes a tee 50, and the tee 50 is connected to the rear ends of the main loop 11 and the branch loops 12, respectively, and the water return line 15.
So, tee bend pipe fitting 50 connects main loop 11, branch return circuit 12 and return water pipeline 15 simultaneously for the coolant liquid can flow out through return water pipeline 15 after passing through main loop 11 and branch return circuit 12, guarantees the circulation of coolant liquid in whole pipeline.
Specifically, the tee pipe 50 and the valve assembly 13 are respectively disposed at two ends of the main loop 11 and the branch loop 12, so that the main loop 11 and the branch loop 12, the water inlet pipeline 14 and the water return pipeline 15 can form a finished pipeline system, and complete circulation of the cooling liquid can be achieved. In addition, in some embodiments, tee fitting 50 may also be replaced with a three-way valve, such that both three-way valves together control the flow of the main loop 11 and the branch loop 12 of the cooling fluid.
Referring to fig. 1, in some embodiments, the thermal management system 100 further includes a warm air core 70, the warm air core 70 being disposed in the primary loop 11, the warm air core 70 being used to provide heat to a cabin of the vehicle 200.
In this manner, the warm air core 70 is disposed on the main circuit 11, so that the coolant supplies heat to the cabin through the warm air core 70 while passing through the main circuit 11.
In such an embodiment, the coolant in the inlet line 14 may be fed through the valve assembly 13 to the main circuit 11 and the branch circuit 12, respectively, such that the coolant fed into the main circuit 11 may supply heat to the cabin through the warm air core 70, and the coolant fed into the branch circuit 12 may be fed into the mixing chamber 40 such that the temperature of the coolant in the secondary circuit 20 is increased.
Referring to fig. 3 and 4, in other embodiments, the warm air core 70 may be disposed in the water inlet pipe 14 or the water return pipe 15 of the first circuit 10. In one example, when the heater core 70 is disposed in the inlet conduit 14, the coolant passes through the heater core 70 to heat the cabin and then through the first circuit 10 into the mixing chamber 40. As a result, the temperature of the coolant in the first circuit 10 is slightly lowered, and the coolant is mixed with the coolant in the second circuit 20 and can still heat the power battery 30. In another example, when the heater core 70 is disposed in the return line 15, the coolant first enters the mixing chamber 40 and then enters the heater core 70. Of course, in such an embodiment, the valve assembly 13 and tee 50 may be omitted, leaving only one line.
Referring to fig. 1, in some embodiments, valve assembly 13 can control the ratio of coolant flow into main loop 11 and branch loop 12.
Therefore, the cooling liquid of the water inlet pipeline 14 can be flowed into the main loop 11 and the branch loop 12 by the valve assembly 13 according to a certain proportion, so as to ensure that the cooling liquid can realize corresponding functions, and the valve assembly 13 can also change the proportion of the cooling liquid entering the main loop 11 and the branch loop 12 according to the actually required temperature of the power battery 30, so as to correspondingly adjust the temperatures of the power battery 30 and the cockpit.
Further, referring to fig. 1 and 5, in some embodiments, the thermal management system 100 further includes a temperature sensor 60, the temperature sensor 60 is used for detecting the temperature of the cooling fluid flowing to the power battery 30 in the second circuit 20, and the valve assembly 13 is capable of adjusting the ratio of the cooling fluid flowing into the main circuit 11 and the branch circuit 12 according to the temperature detected by the temperature sensor 60.
In this way, the temperature sensor 60 can detect the temperature of the coolant flowing to the power battery 30 in the second loop 20, and can adjust the ratio of the coolant flowing into the main loop 11 and the branch loop 12 according to the detected temperature value, so as to quickly adjust the temperature of the power battery 30.
Specifically, the thermal management system 100 also includes a processor 101, and the processor 101 may be connected to the temperature sensor 60 and the valve assembly 13, receive a temperature signal from the temperature sensor 60, and control the valve assembly 13. In one example, when the temperature sensor 60 detects that the temperature of the coolant flowing to the power battery 30 in the second circuit 20 is lower than a predetermined temperature range, the processor 101 receives the temperature signal from the temperature sensor 60, and the processor 101 controls the valve assembly 13 to enable the valve assembly 13 to change the ratio of the coolant flowing into the main circuit 11 and the branch circuit 12, so that the ratio of the coolant flowing into the branch circuit 12 is increased, and the temperature of the coolant in the second circuit 20 is rapidly increased, thereby ensuring the normal operation of the power battery 30. In another example, when the temperature sensor 60 detects that the temperature of the coolant flowing to the power battery 30 in the second circuit 20 is higher than a predetermined temperature range, the processor 101 receives the temperature signal from the temperature sensor 60, and the processor 101 controls the valve assembly 13 to make the valve assembly 13 change the ratio of the coolant flowing into the main circuit 11 and the branch circuit 12, so that the ratio of the coolant flowing into the branch circuit 12 is reduced, thereby ensuring that the temperature of the coolant in the second circuit 20 is normal and ensuring stable operation of the power battery 30.
Referring to fig. 1, in some embodiments, the mixing chamber 40 includes a first mixing port 41, a second mixing port 42, a third mixing port 43, and a fourth mixing port 44, the first mixing port 41 and the second mixing port 42 are connected to the second loop 20, and the third mixing port 43 and the fourth mixing port 44 are connected to the first loop 10.
In this way, the cooling fluid of the second circuit 20 can enter the mixing chamber 40 through the first mixing port 41, the cooling fluid of the first circuit 10 can enter the mixing chamber 40 through the third mixing port 43, and the two cooling fluids at the two temperatures are mixed in the mixing chamber 40 to adjust the temperature of the cooling fluid. The coolant in the mixing chamber 40 can be returned to the second loop 20 and the first loop 10 through the second mixing port 42 and the fourth mixing port 44, respectively, so that the temperature of the coolant flowing to the power battery 30 is appropriate, and the rapid heating and heat preservation of the power battery 30 are realized.
Referring to fig. 1, in some embodiments, the thermal management system 100 further includes a pump 80, the pump 80 is disposed in the second circuit 20, and the pump 80 is configured to drive the cooling fluid to flow in the second circuit 20.
Therefore, the pump body 80 can provide pressure for the second loop 20, drive the flow of the cooling liquid in the second loop 20, avoid the slow flow and even blockage of the cooling liquid in the second loop 20, and ensure that the cooling liquid can flow fast in the second loop 20 to heat and preserve heat of the power battery 30.
Referring to fig. 2, a vehicle 200 according to an embodiment of the present disclosure includes a vehicle body 201 and the thermal management system 100 according to any one of the embodiments described above, where the thermal management system 100 is disposed on the vehicle body 201.
In the thermal management system 100 and the vehicle 200 of the embodiment of the application, the thermal management system 100 is used in the vehicle 200, the coolant in the thermal management system 100 flows to the first loop 10 and the second loop 20 respectively, part of the coolant supplies heat to the cab of the vehicle 200 through the first loop 10, and the other part of the coolant enters the mixing cavity 40 and is mixed with the coolant in the second loop 20 and then flows to the power battery 30 through the second loop 20, so that the coolant in the second loop 20 has proper temperature to heat and preserve the temperature of the power battery 30.
In the embodiment of the present application, the specific type of the vehicle 200 is not limited, and the vehicle 200 may be a hybrid vehicle or a pure electric vehicle to meet different requirements.
Referring to fig. 5 and 6, a control method of the thermal management system 100 according to an embodiment of the present application includes:
s10, reading a temperature value of a temperature sensor 60 disposed in a second circuit 20 of the thermal management system 100, where the temperature sensor 60 is configured to detect a temperature of a coolant flowing in the second circuit 20 to a power battery 30 disposed in the second circuit 20;
s20, when the temperature value is lower than the preset temperature value, adjusting a valve assembly 13 of the first circuit 10 arranged in the thermal management system 100 to improve the flow rate of the cooling liquid entering a branch circuit 12 of the first circuit 10, wherein the branch circuit 12 is communicated with the second circuit 20 through a mixing cavity 40;
and S30, when the temperature value is higher than the preset temperature value, adjusting the valve assembly 13 to reduce the flow of the cooling liquid entering the branch loop 12.
In some embodiments, the thermal management system 100 further comprises a processor 101, the processor 101 may be configured to read a temperature value of a temperature sensor 60 disposed in the second circuit 20 of the thermal management system 100, the temperature sensor 60 being configured to detect a temperature of the coolant flowing in the second circuit 20 to the power battery 30 disposed in the second circuit 20; and for adjusting a valve assembly 13 provided in the first circuit 10 of the thermal management system 100 to increase the flow of cooling liquid into a branch circuit 12 of the first circuit 10 when the temperature value is lower than a predetermined temperature value, the branch circuit 12 and the second circuit 20 being in communication through a mixing chamber 40; and also for regulating the valve assembly 13 to reduce the flow of cooling liquid into the branch circuit 12 when the temperature value is higher than a predetermined temperature value.
In the thermal management system 100, the vehicle 200 and the control method of the thermal management system 100 according to the embodiment of the application, the thermal management system 100 is used for the vehicle 200, the coolant in the thermal management system 100 flows to the first loop 10 and the second loop 20 respectively, part of the coolant flows to the cab of the vehicle 200 through the first loop 10, the other part of the coolant flows to the power battery 30 through the second loop 20 after entering the mixing cavity 40 and being mixed with the coolant in the second loop 20, and therefore the coolant in the second loop 20 is appropriate in temperature so as to heat and preserve heat of the power battery 30.
In the description of the embodiments of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application and that variations, modifications, substitutions and alterations in the above embodiments may be made by those of ordinary skill in the art within the scope of the present application.
Claims (11)
1. A thermal management system for a vehicle, comprising:
a first circuit for supplying heat to a cockpit of a vehicle;
a second loop;
the power battery is arranged on the second loop; and
and the mixing cavity is respectively connected with the first circuit and the second circuit and is used for mixing the cooling liquid in the first circuit and the second circuit.
2. The thermal management system of claim 1, wherein the first circuit includes a main circuit for providing heat to the cockpit, a branch circuit and a valve assembly connecting the branch circuit and the second circuit, respectively, and communicating the main circuit with the branch circuit and regulating the flow of coolant to the main circuit and the branch circuit, respectively.
3. The thermal management system of claim 2, wherein the valve assembly is a three-way valve comprising a first port, a second port, and a third port, the first port connecting the water inlet line, the second port connecting the main loop, and the third port connecting the branch loop.
4. The thermal management system of claim 2, further comprising a tee fitting connecting the back ends of the primary and secondary circuits and a return line, respectively.
5. The thermal management system of claim 2, wherein the valve assembly is configured to control a ratio of coolant flow into the primary circuit and the secondary circuit.
6. The thermal management system of claim 2, further comprising a temperature sensor for sensing the temperature of the coolant flowing in the second circuit to the power cell, the valve assembly being configured to adjust the proportion of coolant flowing into the main circuit and the branch circuits based on the temperature sensed by the temperature sensor.
7. The thermal management system of claim 2, further comprising a warm air core disposed in the primary loop, the warm air core for providing heat to a cockpit of the vehicle.
8. The thermal management system of claim 1, wherein the mixing chamber comprises a first mixing interface, a second mixing interface, a third mixing interface, and a fourth mixing interface, the first mixing interface and the second mixing interface connecting the second loop, the third mixing interface and the fourth mixing interface connecting the first loop.
9. The thermal management system of claim 1, further comprising a pump body disposed in the second circuit for driving a flow of coolant in the second circuit.
10. A vehicle, characterized by comprising:
a vehicle body; and
the thermal management system of any of claims 1-9, disposed on a vehicle body.
11. A method of controlling a thermal management system, comprising:
reading a temperature value of a temperature sensor arranged in a second loop of the thermal management system, wherein the temperature sensor is used for detecting the temperature of cooling liquid flowing to a power battery arranged in the second loop;
when the temperature value is lower than the preset temperature value, adjusting a valve assembly of a first circuit of the thermal management system to improve the flow of cooling liquid entering a branch circuit of the first circuit, wherein the branch circuit is communicated with the second circuit through a mixing cavity;
when the temperature value is higher than the predetermined temperature value, adjusting the valve assembly to reduce the flow of the cooling liquid into the branch circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210944009.2A CN115366609A (en) | 2022-08-05 | 2022-08-05 | Thermal management system, vehicle and control method of thermal management system |
| PCT/CN2022/144308 WO2024027103A1 (en) | 2022-08-05 | 2022-12-30 | Thermal management system, vehicle, and method for controlling thermal management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210944009.2A CN115366609A (en) | 2022-08-05 | 2022-08-05 | Thermal management system, vehicle and control method of thermal management system |
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| CN115366609A true CN115366609A (en) | 2022-11-22 |
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| CN202210944009.2A Pending CN115366609A (en) | 2022-08-05 | 2022-08-05 | Thermal management system, vehicle and control method of thermal management system |
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| WO (1) | WO2024027103A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024027103A1 (en) * | 2022-08-05 | 2024-02-08 | 合众新能源汽车股份有限公司 | Thermal management system, vehicle, and method for controlling thermal management system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206475759U (en) * | 2017-01-23 | 2017-09-08 | 北京新能源汽车股份有限公司 | Hybrid electric vehicle |
| CN111788082B (en) * | 2018-03-28 | 2024-03-01 | 沃尔沃卡车集团 | Thermal conditioning system for an electrically driven vehicle and vehicle comprising such a system |
| CN108725134B (en) * | 2018-06-06 | 2020-11-20 | 北京长城华冠汽车科技股份有限公司 | Thermal management system of new energy automobile, adjusting method of thermal management system and new energy automobile |
| CN110509744B (en) * | 2019-08-30 | 2021-07-20 | 海马新能源汽车有限公司 | Electric automobile thermal management system and electric automobile |
| CN111532099B (en) * | 2020-03-31 | 2022-11-22 | 浙江吉利控股集团有限公司 | New energy automobile thermal management system |
| CN115366609A (en) * | 2022-08-05 | 2022-11-22 | 合众新能源汽车有限公司 | Thermal management system, vehicle and control method of thermal management system |
-
2022
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- 2022-12-30 WO PCT/CN2022/144308 patent/WO2024027103A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024027103A1 (en) * | 2022-08-05 | 2024-02-08 | 合众新能源汽车股份有限公司 | Thermal management system, vehicle, and method for controlling thermal management system |
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| WO2024027103A1 (en) | 2024-02-08 |
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