CN112440653B - Thermal management system, control method thereof and vehicle with thermal management system - Google Patents
Thermal management system, control method thereof and vehicle with thermal management system Download PDFInfo
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- CN112440653B CN112440653B CN201910806139.8A CN201910806139A CN112440653B CN 112440653 B CN112440653 B CN 112440653B CN 201910806139 A CN201910806139 A CN 201910806139A CN 112440653 B CN112440653 B CN 112440653B
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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
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
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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
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00557—Details of ducts or cables
- B60H1/00571—Details of ducts or cables of liquid ducts, e.g. for coolant liquids or refrigerants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
- B60N3/10—Arrangements or adaptations of other passenger fittings, not otherwise provided for of receptacles for food or beverages, e.g. refrigerated
- B60N3/104—Arrangements or adaptations of other passenger fittings, not otherwise provided for of receptacles for food or beverages, e.g. refrigerated with refrigerating or warming systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a thermal management system, a control method thereof and a vehicle with the thermal management system, wherein the thermal management system comprises: an air conditioning duct; the warm air core body is provided with a heat exchange liquid flow path; the first circulating pump is communicated with the heat exchange liquid flow path; a heating device having a heated liquid flow path connected in series with the first circulation pump and the heat-exchange liquid flow path to form a first circulation liquid flow loop; the cup holder heating device is provided with a cup holder liquid flow path, and the cup holder liquid flow path is connected with the heating liquid flow path and the first circulating pump in series and is connected with the heat exchange liquid flow path in parallel to form a second circulating liquid flow loop. According to the heat management system, the heating speed of the air in the air conditioning channel is increased, the cup holder can be heated by the air conditioning heating system when the indoor space is heated, the indoor heating function of the vehicle is increased, and therefore the use comfort of a user is improved.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to a thermal management system, a control method thereof and a vehicle with the thermal management system.
Background
In the correlation technique, the air-conditioning heating mode in the pure electric vehicle adopts solitary heating device to heat the air in order to realize the heating usually, and under low temperature environment, the temperature intensification is slow, and user experience is relatively poor to air-conditioning heating only is used for the heating of indoor air, and the heating function of realization is few.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention aims to provide a thermal management system, which can also realize the heating of the cup holder by an air-conditioning heating system when the indoor space is heated.
Another object of the present invention is to provide a control method of a thermal management system.
It is a further object of the present invention to provide a vehicle having the thermal management system described above.
A thermal management system according to an embodiment of the first aspect of the invention comprises: the air conditioning channel is provided with an air inlet and an air outlet which are provided with a fan; a warm air core within the air conditioning duct, the warm air core having a heat exchange liquid flow path; a first circulation pump in communication with the heat exchange liquid flow path; a heating device having a heated liquid flowpath connected in series with the first circulation pump and the heat-exchange liquid flowpath to form a first circulation flow loop; a cup holder heating device having a cup holder liquid flow path in series with the heating liquid flow path and the first circulation pump and in parallel with the heat exchange liquid flow path to form a second circulation liquid flow loop.
According to the heat management system provided by the embodiment of the invention, the heating device is arranged, and the heating liquid flow path of the heating device is connected with the first circulating pump and the heat exchange liquid flow path of the warm air core body in series to form the first circulating liquid flow loop, so that the heating speed of air in the air conditioning channel during heating is increased, and the air heating speed is high; set up saucer heating device to make saucer heating device and first circulating pump establish ties, and parallelly connected with the warm braw core, in order to constitute second circulation liquid flow return circuit, make when heating the room air, can also heat saucer heating device with the help of heating device, thereby can heat or keep warm to containers such as drinking cup in the saucer, in order to provide more practicality heating functions.
According to some embodiments of the invention, the thermal management system further comprises a first electric heater, the first electric heater being a PTC wind heater; the air conditioning channel further comprises a first air outlet branch, the air inlet end of the first air outlet branch is connected with the air outlet, and the air outlet end of the first air outlet branch is arranged on a cup stand of the vehicle.
According to some embodiments of the invention, a control valve is provided on the cup holder liquid flow path for controlling the flow of liquid through the cup holder liquid flow path; and an air outlet end of the first air outlet branch is provided with an air volume regulating valve for controlling air output.
According to some embodiments of the invention the heating means comprises a fuel heater and a second electric heater, the liquid flow path of the fuel heater and the liquid flow path of the second electric heater being connected in series to form the heated liquid flow path.
According to some embodiments of the invention, the first recycle liquid stream loop has a first end and a second end; further comprising: a battery pack liquid flow path having a third end and a fourth end; a first control device comprising a first interface, a second interface, a third interface, and a fourth interface; the first interface is connected with the first end, the second interface is connected with the third end, the third interface is connected with the second end, and the fourth interface is connected with the fourth end.
According to some embodiments of the invention, further comprising a second circulation pump in series with the cell pack liquid flow path; the first circulating pump, the warm air core and the heating device are connected in series in the direction from the first end to the second end; the battery pack liquid flow path and the second circulation pump are connected between the second port and the fourth port.
According to the control method of the heat management system in the embodiment of the second aspect of the invention, the heat management system comprises an air conditioning channel with an air inlet and an air outlet, a warm air core body and a first electric heater which are positioned at the downstream of the air inlet, a first circulating pump, a fuel oil heater, a second electric heater and a cup holder heating device, wherein the air conditioning channel comprises a first air outlet branch; the warm air core, the first circulating pump, the fuel oil heater and the second electric heater are connected in series to form a first circulating liquid flow loop, and the cup holder heating device is connected with the first circulating pump, the fuel oil heater and the second electric heater in series and connected with the warm air core in parallel to form a second circulating liquid flow loop; the control method comprises the following steps:
acquiring heating information, and starting a thermal management system based on the heating information;
if the heating information corresponds to the opening of the fuel oil heater for indoor heating and cup stand heating, then
Before the temperature of a medium in a liquid heating flow path of the thermal management system does not reach a preset temperature, the PTC air heater is controlled to be started, and the thermal management system heats the indoor space and heats the cup holder through the PTC air heater;
when the temperature of a medium of a heating liquid flow path of the thermal management system reaches a preset temperature, the PTC air heater is closed, and the thermal management system heats the indoor space and the cup holder through the fuel oil heater;
if the heating information corresponds to the situation that the PTC air heater is started for indoor heating and cup holder heating, then
The heat management system heats the indoor and heats the cup stand through the PTC air heater;
if the heating information corresponds to the fuel oil heater and the PTC air heater which are started for heating, then
Before the medium temperature of the heating liquid flow path of the heating information does not reach the preset temperature, the heat management system heats the indoor space and heats the cup stand through the PTC air heater;
and when the temperature of a medium in a heating liquid flow path of the thermal management system reaches a preset temperature, the thermal management system heats the indoor space and heats the cup holder through the fuel oil heater and the PTC air heater together.
According to some embodiments of the invention, when only the cup holder is heated, the fuel heater is activated by default to heat the cup holder.
According to some embodiments of the invention, the thermal management system comprises a first control device and a battery pack fluid flow path; said first recycle liquid stream loop comprises a first end and a second end; the first control device comprises a first interface connected with the first end, a second interface connected with one end of the battery pack, a third interface connected with the second end, and a fourth interface connected with one end of the second circulating pump, the other end of the battery pack is connected with the other end of the second circulating pump, and when the battery pack is heated, the battery pack heating step 1 is executed: starting at least one of the fuel heater and the second electric heater, controlling the first interface to be communicated with the second interface and the third interface to be communicated with the fourth interface, and starting at least one of the first circulating pump and the second circulating pump;
when the battery pack is heated to reach a preset battery temperature,
and (3) executing a battery pack heating step 2: and closing the fuel heater and/or the first electric heater, controlling the second interface to be communicated with the fourth interface, and starting the second circulating pump.
According to some embodiments of the invention, the battery pack heating step further comprises: the first control device is switched between a first state and a second state to alternate clockwise and counterclockwise flow of liquid through the battery pack, the first port being in communication with the second port and the third port being in communication with the fourth port when the first control device is in the first state, the first port being in communication with the fourth port and the second port being in communication with the third port when the first control device is in the second state.
A vehicle according to an embodiment of the third aspect of the invention comprises a thermal management system according to an embodiment of the first aspect of the invention described above.
Additional aspects and advantages of the invention 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 invention.
Drawings
The above and/or additional aspects and advantages of the present invention 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 view of air heating and cup holder heating of a thermal management system according to an embodiment of a first aspect of the present invention;
FIG. 2 is a schematic diagram of an air heating mode, a cup holder heating mode and a battery pack heating mode of a thermal management system according to an embodiment of the first aspect of the present invention;
FIG. 3 is a schematic view of a cup holder heating device of a thermal management system according to an embodiment of the first aspect of the present invention;
FIG. 4 is a schematic diagram of a first control device of the thermal management system shown in FIG. 2.
Reference numerals:
100: a thermal management system;
1: an air conditioning duct; 11: an air inlet; 12: an air outlet;
13: a cold and warm air door; 14: a mode damper; 15. a first air outlet branch;
2: a fan;
3: a cup stand; 31: a cup holder heating device; 32: a cup holder liquid flow path;
41: a warm air core body; 42: a first electric heater; 43: a heat exchange liquid flow path;
5: a first circulation pump; 51: a second circulation pump;
6: a heating device; 61: a fuel oil heater; 62: a second electric heater;
63: a heated liquid flow path; 64: a first recycle liquid stream loop; 641: a first end; 642: a second end;
7: a battery pack; 71: a battery pack liquid flow path; 711: a third end; 712: a fourth end;
8: a first control device; 81: a first interface; 82: a second interface; 83: a third interface; 84: and a fourth interface.
Detailed Description
Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.
An embodiment of a thermal management system 100 according to the first aspect of the invention is described below with reference to fig. 1-4. Thermal management system 100 may be applied to a vehicle, such as a full electric vehicle. In the following description of the present application, the thermal management system 100 is described as being applied to a vehicle, such as a pure electric vehicle.
As shown in fig. 1 to 4, the thermal management system 100 according to the embodiment of the first aspect of the present invention includes an air conditioning passage 1, a warm air core 41, a first circulation pump 5, a heating device 6, and a cup holder heating device 31.
Specifically, the air conditioning passage 1 has an air inlet 11 and an air outlet 12, the fan 2 and the warm air core 41 are both disposed in the air conditioning passage 1, the warm air core 41 has a heat-exchange liquid flow path 43, and the first circulation pump 5 is in communication with the heat-exchange liquid flow path 43.
The heating device 6 has a heating liquid flow path 63, and the heating liquid flow path 63 is connected in series with the first heat exchange circulation pump 5 and the heat-exchange liquid flow path 43 to constitute a first circulation liquid flow circuit 64.
As shown in fig. 2 and 3, the cup holder heating device 31 has a cup holder liquid flow path 32, and the cup holder liquid flow path 32 is connected in series with the heating liquid flow path and the first circulation pump 5, and in parallel with the heat-exchange liquid flow path 43 to constitute a second circulation liquid flow loop. Wherein, saucer heating device 31 sets up on saucer 3 for heat preservation is carried out to saucer 3, saucer heating device 31 can be on saucer 3 with the winding of pipeline form, also can be other forms that can carry out the heat exchange with the drinking cup of placing in saucer 3.
When the operation mode of the thermal management system 100 is a heating mode, the fan 2 operates, external air flow such as air can enter the air conditioning channel 1 through the air inlet 11, the heating device 6 and the first circulation pump 5 can also operate simultaneously, at this time, the heating device 6 can heat liquid such as water in the heated liquid flow path 63, under the pumping action of the first circulation pump 5, the water circularly flows in the first circulation liquid flow loop 64 and heats the warm air core 41 on the first circulation liquid flow loop 64, after the air exchanges heat through the warm air core 41, the hot air is sent out from the air outlet 12, and can be conveyed to a passenger compartment of a vehicle such as a pure electric vehicle, so as to realize heating. The water heated by the heating device 6 can flow circularly in the second circulating liquid flow loop through the cup stand liquid flow path 32, and heat the cup stand heating device 31 on the second circulating liquid flow loop, so as to heat or insulate the containers such as the water cup and the like placed in the cup stand 3.
According to the thermal management system 100 of the embodiment of the invention, the heating device 6 is arranged, the heating liquid flow path 63 of the heating device 6 is connected in series with the first circulating pump 5 and the heat exchange liquid flow path 43 of the warm air core 41 to form the first circulating liquid flow loop 64, so that the heating speed of the air in the air conditioning channel 1 during heating is increased, the temperature of the air is increased rapidly, the cup holder 3 can be heated by the heating liquid flow path 63 of the heating device 6 of the air conditioning system through the cup holder heating device 31, so that containers such as a water cup and the like placed in the cup holder 3 can be heated or insulated, more temperature functions are realized, the user experience is improved, and the cup holder heating device 31 is connected with the heating device 6 and the first circulating pump 5, so that the liquid medium heated by the heating device 6 directly flows through the cup holder heating device 31 through the second circulating liquid flow loop to heat the cup holder 3, the heat exchange efficiency of the heating device is higher than that of the liquid medium heated by the heating device 6, and the liquid medium flows through the warm air core 41 to heat air, and then the heated air is guided to the cup stand 3 to heat containers such as water cups in the cup stand 3.
In some embodiments of the present invention, referring to fig. 1, thermal management system 100 further comprises first electric heater 42, first electric heater 42 being a PTC wind heater. Air conditioning channel 1 still includes first air-out branch road 15, first air-out branch road 15 includes air inlet end and air-out end, the air inlet end of first air-out branch road 15 links to each other with air-out end of air conditioning channel 1, the air-out end of first air-out branch road 15 is located on the saucer 3, can shunt to first air-out branch road 15 via the air inlet end of first air-out branch road 15 when air in the air conditioning channel 1 goes out, through first air-out branch road 15 water conservancy diversion to saucer 3, so that the wind in the air conditioning channel 1 can blow to containers such as the drinking cup of placing in the saucer 3.
It can be understood that the first electric heater 42 can also be used for heating indoor air, and if the current vehicle air conditioner works in a heating working condition through the first electric heater 42, the hot air heated indoors by the first electric heater 42 can be used for heating or insulating containers such as water cups and the like placed in the cup holders 3.
According to the thermal management system 100 of the embodiment of the invention, the first air outlet branch 15 is arranged, so that warm air heated by the first electric heater 42 indoors is guided to the cup stand 3 through the air conditioning channel 1, and the container placed in the cup stand 3 is heated by the heated air in the air conditioning channel 1, so that a mode of heating the container in the cup stand 3 is increased, and the container in the cup stand 3 can be heated or kept warm when the vehicle air conditioner is heated only by PTC air.
Further, in some embodiments of the present invention, a control valve (not shown in the drawings) is disposed on the cup holder liquid flow path 32, and the control valve is used for controlling the flow rate of the liquid flowing through the cup holder liquid flow path 32, so as to control the heating temperature of the cup holder heating device 31 by controlling the flow rate of the medium flowing through the cup holder liquid flow path 32. The air outlet end of the first air outlet branch 15 is provided with an air volume adjusting valve (not shown in the drawings), and the air volume adjusting valve can be used for adjusting the air volume of the air outlet end of the first air outlet branch 15, so as to control the heating temperature of the cup holder heating device 31 by controlling the air volume of the air outlet end of the first air outlet branch 15.
In some embodiments of the present invention, referring to fig. 2, the heating device 6 comprises a fuel oil heater 61 and a second electric heater 62, and a liquid flow path of the fuel oil heater 61 and a liquid flow path of the second electric heater 62 are connected in series to form a heated liquid flow path 63. In this case, the heated liquid flow path 63 of the fuel heater 61 and the second electric heater 62, the first circulation pump 5, and the heat-exchanged liquid flow path 43 of the warm air core 41 are connected in series to constitute a first circulation liquid flow circuit 64. When the heating device 6 works, only the fuel oil heater 61 can work, and the fuel oil heater 61 can heat the water in the heating liquid flow path 63 flowing through the fuel oil heater, so that electricity can be saved, the electric energy consumption of a vehicle is reduced, and the endurance mileage of the pure electric vehicle is increased. Of course, only the second electric heater 62 may be operated, and the second electric heater 62 may heat the water in the heated liquid flow path 63 flowing therethrough, so that the temperature increase rate of the water is high, and thus the rapid heating can be realized. Alternatively, the oil heater 61 and the second electric heater 62 may also be operated at the same time, so that rapid heating may be further achieved.
When the heating device 6 comprises the fuel oil heater 61, the fuel oil heater 61 is heated without consuming the electric energy of the pure electric vehicle, so that the endurance capacity of the battery of the pure electric vehicle is improved, and the endurance mileage of the pure electric vehicle is prolonged. Particularly in a low-temperature environment, the power consumption of the electric heater is very large, if the electric heater is only arranged, in order to guarantee the comfort level of a user in the low-temperature environment, a large amount of electric energy of a pure electric vehicle type can be consumed for heating inside the vehicle, and the cruising ability of the pure electric vehicle type is seriously influenced.
When the heating device 6 includes the second electric heater 62, by adopting the electric heating mode, the heating requirement of the battery pack 7 of the vehicle can be met in an environment with lower ambient temperature, and the heating speed is high, so that the temperature rise time can be further shortened. Moreover, when the first electric heater 42 fails, the fuel oil heater 61 and/or the second electric heater 62 can be turned on to heat the warm air core 41, so that the heating effect and the temperature rise speed are ensured. The heat management system arranged in this way can also adopt a plurality of different heating modes to heat air so as to adapt to a plurality of different environments, thereby improving the use comfort of users.
In a further embodiment of the present invention, as shown in fig. 2 and 4, the first recycle liquid stream loop 64 has a first end 641 and a second end 642. The thermal management system 100 further comprises a battery pack fluid flow path 71 and a first control device 8, the battery pack fluid flow path 71 having a third end 711 and a fourth end 712, the first control device 8 comprising a first interface 81, a second interface 82, a third interface 83, and a fourth interface 84, the first interface 81 of the first control device 8 being connected to the first end 641 of the first circulation flow loop 64, the second interface 82 of the first control device 8 being connected to the third end 711 of the first circulation flow loop 64, the third interface 83 of the first control device 8 being connected to the second end 642 of the first circulation flow loop 64, and the fourth interface 84 of the first control device 8 being connected to the fourth end 712 of the first circulation flow loop 64.
For example, when the ambient temperature outside the vehicle is low, in order to ensure that the battery pack 7 of the vehicle can normally operate or increase the charging rate of the vehicle, the battery pack 7 may be heated, at this time, at least one of the fuel heater 61 and the second electric heater 62 in the heating device 6 may be turned on, and the first interface 81 and the second interface 82 of the first control device 8 may be controlled to communicate, the third interface 83 and the fourth interface 84 may be controlled to communicate, the battery pack liquid flow path 71 and the first circulation flow loop 64 may communicate, the liquid heated by at least one of the fuel heater 61 and the second electric heater 62 may flow from the first circulation flow loop 64 to the battery pack liquid flow path 71, and the liquid with a higher temperature in the battery pack liquid flow path 71 may exchange heat with the battery pack 7, thereby heating the battery pack 7. Therefore, through the arrangement, the thermal management system 100 not only realizes the heating function, but also can heat the battery pack 7, and is simple in structure and easy to realize.
Further, as shown in fig. 2, the thermal management system 100 further includes a second circulation pump 51, and the second circulation pump 51 is connected in series with the battery pack liquid flow path 71. When the liquid in the battery pack liquid flow path 71 has reached the desired temperature, the first port 81 and the third port 83 of the first control device 8 and the second port 82 and the fourth port 84 may be controlled to communicate, and at this time, the circulation of the liquid in the second circulation pump 51 and the battery pack 7 may be achieved by the second circulation pump 51, and the temperature of the battery pack 7 may be maintained. Since the heating device 6 and the first circulation pump 5 can be stopped, the energy consumption of the whole thermal management system 100 is reduced, and the cost is reduced.
The first end 641 of the first circulation flow circuit 64 is connected to the first circulation pump 5, the heating device 6, and the heater core 41 in the direction of the second end 642, and the battery pack liquid flow path 71 and the second circulation pump 51 are connected between the second port 82 and the fourth port 84 of the first control device 8. From this, first circulating pump 5, heating device 6 and warm braw core 41 concentrate and arrange, can concentrate the heating to water, can realize the rapid heating up of water. Moreover, first circulating pump 5 and second circulating pump 51 are arranged on whole circulating flow path at intervals, when giving battery package 7 heating, when first circulating pump 5 and second circulating pump 51 worked simultaneously, can alleviate first circulating pump 5 and second circulating pump 51 pumping pressure, prolong first circulating pump 5 and second circulating pump 51's life.
Optionally, the air heating function and the cup holder 3 heating function of the thermal management system 100 according to the embodiment of the present invention are independent and separate from each other, so that when the indoor air heating is implemented, the cup holder 3 can be selectively heated, and when the cup holder 3 is heated, the indoor air heating can be selectively implemented.
Alternatively, as shown in fig. 1, an evaporator, a cooling and heating damper 13, and a mode damper 14 are provided in the air-conditioning passage 1. Specifically, the air-conditioning passage 1 includes a cooling passage and a heating passage. When the cold and warm air door 13 is opened to the position of the cold air door, a refrigeration channel is formed; when the cold and warm air door 13 is opened to the position of the warm air door, a heating channel is formed. The evaporator is used for evaporative cooling of the thermal management system 100, when the air conditioning channel 1 executes a cooling working condition, heating work is not performed in the air conditioning channel 1, the cold and warm air door 13 is opened to the position of the cold air door, external air flow such as air enters the air conditioning channel 1 under the action of the fan 2, and the air flow is sent out through the cooling channel after being cooled by the evaporator; similarly, when the thermal management system 100 is used for heating, the evaporator does not perform cooling, the cold/warm air door 13 is opened to the position of the warm air door, and external air flow such as air enters the air conditioning channel 1 under the action of the fan 2, passes through the evaporator which does not operate, flows to the warm air core 41 from the position of the warm air door, exchanges heat and increases temperature through the warm air core 41, and is sent out through the heating channel; and the user can adjust the wind direction through the mode damper 14. From this, thermal management system 100 can switch between refrigeration mode and heating mode according to the user's demand, can also control the air-out direction through mode air door 14, simple structure, convenient operation.
A method of controlling a thermal management system 100 according to an embodiment of the second aspect of the invention. The thermal management system 100 comprises an air conditioning channel 1 with an air inlet 11 and an air outlet 12, a warm air core 41 and a first electric heater 42 which are positioned at the downstream of the air inlet 11, a first circulating pump 5, a fuel oil heater 61, a second electric heater 62 and a cup holder heating device 31, wherein the air conditioning channel 1 comprises a first air outlet branch 15, the warm air core 41, the first circulating pump 5, the fuel oil heater 61 and the second electric heater 62 which are connected in series to form a first circulating liquid flow loop 64, and the cup holder heating device 31 is connected in series with the first circulating pump 5, the fuel oil heater 61 and the second electric heater 62 and connected in parallel with the warm air core 41 to form a second circulating liquid flow loop;
the control method of the thermal management system 100 includes the steps of:
s1: and acquiring heating information, and starting the thermal management system 100 based on the heating information.
The heating information may include a command for selecting a heating mode by a user and a command for selecting an air-conditioning mode by the user, where the command for selecting the heating mode by the user is used to confirm which heater or heaters (such as the fuel oil heater 2 and the PTC air heater) the user specifies to perform heating, and the command for selecting the air-conditioning mode by the user is used to determine a target mode for the user to specify the air-conditioning. For example, the user may select the direction of the outlet air, the amount of the outlet air, the temperature of the air conditioner, and the like.
S2, if the heating information corresponds to the situation that the fuel oil heater 61 is turned on for indoor heating and the cup holder 3 is heated, then
S21: before the temperature of the medium in the heating liquid flow path 63 of the thermal management system 100 does not reach the preset temperature, the PTC air heater is controlled to be started, and the PTC air heater is used for heating the indoor space and heating the cup holder 3;
when the user appoints to open fuel heater 61 and carry out indoor heating and saucer 3 heating, when detecting that the medium temperature in the heating liquid flow path 63 does not reach preset temperature, start PTC air heater and heat the air to the realization is the warm braw to the wind that blows off in the passenger cabin, and leads the warm braw to saucer 3 through first air-out branch road 15, heats containers such as drinking cup in the saucer 3 with the realization.
S22, when the temperature of a medium in a heating liquid flow path of the thermal management system reaches a preset temperature, the PTC air heater is closed, and the thermal management system heats the indoor room and the cup holder 3 through the fuel oil heater;
when the temperature of the medium in the heating liquid flow path 63 reaches the preset temperature, the PTC air heater is closed, the indoor is heated through the fuel oil heater 2, and the cup holder 3 is heated through the second circulating liquid flow loop. Wherein, heat through adopting fuel oil heater 2, because fuel oil heater 2 heats need not to consume the electric energy of pure electric vehicle, thereby the duration of a journey ability of the battery package of pure electric vehicle has been promoted, the duration of a journey mileage of pure electric vehicle has been prolonged, and the liquid medium with fuel oil heater 61 heating directly flows through cup stand heating device 31 in order to heat cup stand 3 via second circulation liquid flow return circuit, its heat exchange efficiency is than the liquid medium of heating device 6 heating and heats the back to the air through warm braw core 41, air water conservancy diversion after will heating is higher to the heat exchange efficiency of the heating of containers such as the drinking cup in cup stand 3 of cup stand 3 to cup stand 3.
S3: if the heating information corresponds to the opening of the PTC air heater for indoor heating and the heating of the cup holder 3, then
S31, the heat management system heats the room and the cup holder 3 through the PTC air heater;
at this moment, the PTC air heater can be directly started, the indoor temperature is heated through the PTC air heater so as to heat the indoor space, and the warm air heated by the PTC air heater is guided to the cup stand 3 through the first air outlet branch 15 so as to heat the cup stand 3.
S4, if the heating information corresponds to the fuel oil heater and the PTC air heater being started for heating, then
And S41, before the temperature of the medium in the heating liquid flow path of the heating information does not reach the preset temperature, the heat management system heats the room and heats the cup holder 3 through the PTC air heater.
When a user designates to start the fuel oil heater 61 and the PTC air heater for heating, when the temperature of the medium in the heating liquid flow path 63 is detected to be lower than the preset temperature, the PTC air heater is started to heat the air, so that the air blown out of the passenger compartment is the warm air, and the warm air is guided to the cup stand 3 through the first air outlet branch 15, so that containers such as a water cup in the cup stand 3 are heated.
S42: when the temperature of the medium in the heating liquid flow path of the thermal management system reaches the preset temperature, the thermal management system heats the indoor space and heats the cup holder 3 through the fuel oil heater 61 and the PTC air heater.
When the temperature of the medium in the heating liquid flow path 63 reaches the preset temperature, the fuel oil heater 61 can be further controlled according to the heating information under the condition that the PTC air heater is kept on, and at the moment, the fuel oil heater 61 and the PTC air heater act together to heat the indoor space and heat the cup holder 3.
By adopting different heating modes, the air conditioner opening requirement of a user can be responded more quickly, better air outlet experience can be provided for the user, and energy can be fully saved.
When the user needs to heat the cup holder 3, at least one of the steps B1 and B3 is performed:
b1: starting the fuel heater 61 to heat the cup holder 3;
the fuel heater 61 is activated, and the fuel heater 61 heats the liquid medium in the liquid heating flow path 63, and the heated liquid medium directly flows through the cup holder heating device 31 through the second circulating liquid flow loop to heat the cup holder 3.
B2: the second electric heater 62 is started to heat the cup stand 3;
the second electric heater 62 is activated, and the second electric heater 62 heats the liquid medium in the liquid heating flow path 63, and the heated liquid medium directly flows through the cup holder heating device 31 via the second circulating liquid flow loop to heat the cup holder 3.
B3: the first electric heater 42 is activated to heat the cup holder 3.
The first electric heater 42 is a PTC air heater, which has a faster response speed and a higher temperature rise rate, and can only turn on the first air outlet branch 15 of the air conditioning channel 1 to heat the cup holder 3 by concentrated heat.
Further, in some embodiments of the invention, when only the cup holder 3 is heated, the fuel heater 61 is activated by default to heat the cup holder 3.
When the user only starts the function of heating cup stand 3, start fuel oil heater 61 and heat cup stand 3, fuel oil heater 61 can not consume the electric energy of pure electric vehicle type, the continuation of the journey mileage of pure electric vehicle type has been guaranteed, and through starting fuel oil heater 61, make the liquid medium of fuel oil heater 61 heating directly flow through cup stand heating device 31 in order to heat cup stand 3 via second circulation liquid flow return circuit, its heat exchange efficiency is higher, the rate of heating to the drinking cup in the cup stand 3 is faster.
It is understood that when the user only activates the function of heating the cup holder 3, the above three cup holder heating modes can be combined, and the combination can be determined according to the instruction of the user or the current energy condition of the vehicle.
Further, in some embodiments of the present invention, the thermal management system 100 includes a first control device 8 and a battery pack fluid flow path 71; the first recycle flow loop 64 includes a first end 641 and a second end 642; the first control means 8 comprises a first interface 81 connected to the first end 641, a second interface 82 connected to one end of a battery pack, a third interface 83 connected to the second end 642, and a fourth interface 84 connected to one end of the second circulation pump 51, the other end of the battery pack being connected to the other end of the second circulation pump 51,
when the battery pack is heated up,
performing a battery pack heating step 1: at least one of the fuel heater 61 and the second electric heater 62 is turned on, the first port 81 is controlled to be communicated with the second port 82 and the third port 83 is controlled to be communicated with the fourth port 84, and at least one of the first circulation pump 5 and the second circulation pump 51 is started.
When only the fuel heater 61 is turned on, the first electric heater 42 and the second electric heater 62 are turned off, and the first circulation pump 5 is started. Specifically, referring to fig. 1 to 3, at this time, the thermal management system 100 adopts a fuel heating mode, the fan 2 operates to suck air entering from the air inlet 11 into the air conditioning passage 1, the air flows to the warm air core 41 and the first electric heater 42, at the same time, the fuel heater 61 heats the liquid in the first circulating liquid flow loop 64, the heated liquid heats the warm air core 41 when flowing through the warm air core 41, the warm air core 41 releases heat in the air conditioning passage 1 to heat surrounding air, and then hot air is discharged from the air outlet 12, so as to heat indoor air. If the heating function of the cup stand 3 is turned on, the heated liquid flows through the cup stand heating device 31 in a divided manner to heat and preserve heat of containers such as water cups and the like placed in the cup stand 3. Therefore, containers such as water cups in the cup holder 3 can be heated while indoor air is heated, more heating functions can be achieved, the fuel oil heater 61 is used as a heating heat source to save electric energy, and when the thermal management system 100 is applied to a vehicle, the cruising range of the vehicle such as a pure electric vehicle can be increased.
When only at least one of the first and second electric heaters 42 and 62 is turned on and the oil heater 61 is turned off. Specifically, at this time, the thermal management system 100 adopts an electric heating mode, in which the fan 2 sucks in air entering from the air inlet 11 and conveys the air to the warm air core 41 and the first electric heater 42, when the second electric heater 62 is turned on and the first electric heater 42 is turned off, the first circulating pump 5 is operated, at this time, the second electric heater 62 heats the liquid in the first circulating liquid flow loop 64, the heated liquid heats the warm air core 41 while flowing through the warm air core 41, then the warm air core 41 releases heat in the air conditioning channel 1, and then hot air is discharged from the air outlet 12, thereby heating indoor air. Of course, it is also possible that the second electric heater 62 is turned off and the first electric heater 42 is turned on; or the first electric heater 42 and the second electric heater 62 are simultaneously turned on. Therefore, the temperature of the indoor air can be increased rapidly by turning on at least one of the second electric heater 62 and the first electric heater 42, and the use comfort of the user can be improved.
If containers such as water cups and the like in the cup stand 3 need to be heated, when only the first electric heater 42 is started, air heated by the first electric heater 42 is guided to the cup stand 3 from the first air outlet branch 15, so that the containers such as the water cups and the like in the cup stand 3 are heated; if only the second electric heater 62 is turned on, the medium heated in the first circulating liquid flow loop 64 flows through the cup holder heating device 31 to directly heat the container such as the cup in the cup holder 3; if the first electric heater 42 and the second electric heater 62 are turned on simultaneously, the cup holder heating device 31 and the first air outlet branch 15 can be used to heat the container such as a water cup in the cup holder 3 simultaneously.
When the fuel heater 61 is turned on and at least one of the second electric heater 62 and the first electric heater 42 is turned on, the thermal management system 100 performs heating in a mode of combining an electric heating mode and a fuel heating mode, so that the temperature rise speed of air in the vehicle is increased while the power consumption of the vehicle is saved.
According to the control method of the thermal management system 100 of the embodiment of the invention, the driving range of a vehicle such as a pure electric vehicle is increased, and the charging performance and the discharging performance of the battery pack 7 can be improved.
Further, the fuel heater 61 and the first electric heater 42 are turned on, the first circulation pump 5 is started, and the first port 81 of the first control device 8 communicates with the third port 83. Therefore, the indoor air is heated in a mode of combining the electric heating mode and the fuel oil heating mode, the power consumption of the vehicle is saved, and the temperature rising speed of the air in the vehicle is further improved. The second electric heater 62 may be turned on or off at this time, which may be determined according to actual needs.
As shown in fig. 2, when the battery pack 7 is heated, the battery pack heating step 1 is performed: at least one of the fuel heater 61 and the second electric heater 62 is turned on, the first port 81 of the first control device 8 is controlled to communicate with the second port 82 and the third port 83 communicates with the fourth port 84, and at least one of the first circulation pump 5 and the second circulation pump 51 is started. When the first port 81 is communicated with the second port 82, and the third port 83 is communicated with the fourth port 84, the liquid in the first circulating liquid flow loop 64 flows to the battery pack 7, so that the battery pack 7 is heated.
When the battery pack is heated to reach a preset battery temperature,
and (3) executing a battery pack heating step 2: the fuel heater 61 and/or the second electric heater 62 are/is turned off, the second port 82 of the first control device 8 is controlled to be communicated with the fourth port 84, and the second circulating pump 51 is started. At this time, under the pumping action of the second circulation pump 51, the liquid may circulate between the second circulation pump 51 and the battery pack 7, thereby continuing to heat the battery pack 7. This saves energy and allows the liquid to maintain the desired temperature of the battery pack 7.
In some embodiments of the present invention, the battery pack heating step further comprises: the first control device 8 is switched between a first state and a second state to alternate clockwise and counterclockwise flow of liquid through the battery pack 7, the first port 81 being in communication with the second port 82 and the third port 83 being in communication with the fourth port 84 when the first control device 8 is in the first state, the first port 81 being in communication with the fourth port 84 and the second port 82 being in communication with the third port 83 when the first control device 8 is in the second state. Therefore, the first control device 8 is switched between the first state and the second state, balanced heating at two ends of the battery pack 7 is guaranteed, the charging and discharging performance of the battery pack 7 can be improved, and the driving range of a vehicle is increased.
In some embodiments of the present invention, as shown in fig. 1 and 2, when the first electric heater 42 malfunctions, the fuel heater 61 and the first circulation pump 5 are turned on. Therefore, the thermal management system 100 can still work normally when the first electric heater 42 fails, and has high heat exchange efficiency.
In some embodiments of the present invention, when the ambient temperature is below a predetermined threshold while heating the indoor air and the battery pack 7, at least one of the second electric heater 62 and the first electric heater 42 is turned on, and the fuel heater 61 is turned on. Therefore, by adopting a mode of combining the fuel oil heating mode and the electric heating mode, the endurance mileage of the vehicle in the low-temperature environment is increased while the battery pack 7 is ensured to have good performance in the low-temperature environment. Alternatively, the predetermined threshold may be-25 ℃. But is not limited thereto.
A vehicle according to an embodiment of the third aspect of the invention comprises a thermal management system 100 according to the above-described embodiment of the first aspect of the invention.
According to the vehicle provided by the embodiment of the invention, by adopting the thermal management system 100, the performance of the vehicle battery pack 7 is improved, and the endurance mileage of the vehicle is increased.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the description of the present invention, "the first feature", "the second feature", "the third feature", and "the fourth feature" may include one or more of the features.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (3)
1. The control method of the heat management system is characterized by comprising an air conditioning channel, a warm air core body, a first electric heater, a first circulating pump, a fuel oil heater, a second electric heater and a cup holder heating device, wherein the air conditioning channel is provided with an air inlet and an air outlet; the first electric heater is a PTC air heater, the warm air core, the first circulating pump, the fuel oil heater and the second electric heater are connected in series to form a first circulating liquid flow loop, and the cup holder heating device is connected with the first circulating pump, the fuel oil heater and the second electric heater in series and connected with the warm air core in parallel to form a second circulating liquid flow loop;
the control method comprises the following steps:
acquiring heating information, and starting a thermal management system based on the heating information;
if the heating information corresponds to the opening of the fuel oil heater for indoor heating and cup stand heating, then
Before the temperature of a medium in a liquid heating flow path of the thermal management system does not reach a preset temperature, the PTC air heater is controlled to be started, and the thermal management system heats the indoor space and heats the cup holder through the PTC air heater;
when the temperature of a medium in a liquid heating flow path of the thermal management system reaches a preset temperature, the PTC air heater is closed, and the thermal management system heats the indoor space and heats the cup stand through the fuel oil heater;
if the heating information corresponds to the opening of the PTC air heater for indoor heating and cup holder heating, then
The heat management system heats the indoor and heats the cup stand through the PTC air heater;
if the heating information corresponds to the fuel oil heater and the PTC air heater which are started for heating, then
Before the medium temperature of the heating liquid flow path of the heating information does not reach the preset temperature, the heat management system heats the indoor space and heats the cup stand through the PTC air heater;
when the temperature of a medium of a heating liquid flow path of the heat management system reaches a preset temperature, the heat management system heats the indoor and heats the cup stand through the fuel oil heater and the PTC air heater together.
2. The control method of the thermal management system of claim 1, wherein the thermal management system comprises a first control device, a battery pack liquid flow path, and a second circulation pump in series with the battery pack liquid flow path; said first recycle liquid stream loop comprises a first end and a second end; the first control device comprises a first interface connected with the first end, a second interface connected with one end of a battery pack, a third interface connected with the second end and a fourth interface connected with one end of the second circulating pump, the other end of the battery pack is connected with the other end of the second circulating pump,
when the battery pack is heated up,
and (3) executing a battery pack heating step 1: starting at least one of the fuel heater and the second electric heater, controlling the first interface to be communicated with the second interface and the third interface to be communicated with the fourth interface, and starting at least one of the first circulating pump and the second circulating pump;
when the battery pack is heated to reach a preset battery temperature,
and (3) executing a battery pack heating step 2: and closing the fuel heater and/or the first electric heater, controlling the second interface to be communicated with the fourth interface, and starting the second circulating pump.
3. The method of claim 2, wherein the step of heating the battery pack further comprises:
the first control means is switched between a first state and a second state to alternate the clockwise and counterclockwise flow of liquid through the battery pack,
the first port is in communication with the second port and the third port is in communication with the fourth port when the first control device is in the first state, and the first port is in communication with the fourth port and the second port is in communication with the third port when the first control device is in the second state.
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| CN206644706U (en) * | 2016-11-30 | 2017-11-17 | 比亚迪股份有限公司 | Cup holder device and automobile |
| CN209274309U (en) * | 2018-10-30 | 2019-08-20 | 广州小鹏汽车科技有限公司 | A kind of thermal management system of electric automobile |
| CN110001352A (en) * | 2019-04-30 | 2019-07-12 | 威马智慧出行科技（上海）有限公司 | New-energy automobile and its heat management device |
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