Heating control method and system of automobile

Abstract

According to various embodiments of the present invention, there is provided a method for performing heating control of an automobile using a refrigerant and a system thereof, the heating control method comprising the steps of: operating an air conditioning system in a heating mode based on a target temperature set according to a user input; a control unit that controls a post-compression temperature of the refrigerant, a flow rate of the refrigerant passing through a heater core, and a rotational speed of a blower fan that supplies air to the heater core on the basis of a difference between the target temperature and an indoor temperature of the vehicle; and controlling a rotational speed of the blower fan or operating a heating electronic component for heating the air passing through the heater core based on a temperature of the air passing through the heater core after a preset time has elapsed.

Description

Technical Field

[0001] This disclosure relates to a heating control method and apparatus for an automobile. Background Technology

[0002] The automotive HVAC (heating, ventilation, and air conditioning) system is configured to heat and cool the air in the passenger compartment to enhance passenger comfort. Additionally, some HVAC systems are configured to selectively change the air supply source. Furthermore, some HVAC systems are configured to draw in a mixture of outside and inside air, and after conditioning the mixture, supply conditioned air to the passenger compartment.

[0003] A vehicle air conditioning system includes a condenser and a heat core housed within the air conditioning housing. The housing has an inlet for air inflow and multiple outlets for air outflow into the passenger compartment. When cooling to lower the interior temperature, the condenser exchanges heat with air supplied by a cooling fan, allowing cooled air to flow into the passenger compartment. When heating to raise the interior temperature, the heat core exchanges heat with air supplied by a blower fan, allowing heated air to flow into the passenger compartment.

[0004] In electric vehicles, since the air conditioning system relies heavily on battery power for heating or cooling, battery consumption increases dramatically when heating or cooling is activated, which may lead to a decrease in the vehicle's performance or a reduction in its expected driving range.

[0005] In particular, when the vehicle starts, if there is a large temperature difference between the vehicle and the target temperature, the heating or cooling system will consume more battery power in order to quickly match the temperature. This results in increased initial battery consumption, which shortens the driving range and speeds up the charging cycle, thus causing inconvenience to the driver. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] This disclosure provides a method and apparatus for effectively controlling the heating of a vehicle based on the temperature of the refrigerant and the air flowing into the vehicle interior.

[0008] The technical problems to be solved by various embodiments are not limited to those mentioned above. Other technical problems not mentioned can be clearly understood by those skilled in the art through the following description.

[0009] (II) Technical Solution

[0010] According to one embodiment, a heating control method for an automobile can be provided, the heating control method utilizing a refrigerant to perform heating control of the automobile, the refrigerant including at least one of natural refrigerants, hydrofluorocarbon (HFC) refrigerants, hydrofluoroolefin (HFO) refrigerants, hydrochlorofluorocarbon (HCFC) refrigerants, hydrocarbon refrigerants that are not natural refrigerants, and halon or perfluorocarbon (PFC) refrigerants.

[0011] Here, the natural refrigerant may include at least one of methane (R-50), ammonia (R-717), carbon dioxide (R-744), ethane (R-170), and propane (R-290).

[0012] Here, the hydrofluorocarbon (HFC) refrigerant may include at least one of difluoromethane (R-32), 1,1-difluoroethane (R-152a), pentafluoroethane (R-125), 1,1,1,2-tetrafluoroethane (R-134a), 1,1,1-trifluoroethane (R-143a), trifluoromethane (R-23), fluoroethane (R-161), 1,1,1,2,3,3,3-heptafluoropropane (R-227ea), 1,1,1,2,3,3-hexafluoropropane (R-236ea), 1,1,1,3,3,3-hexafluoropropane (R-236fa), 1,1,1,3,3-pentafluoropropane (R-245fa), and 1,1,1,3,3-pentafluorobutane (R-365mfc).

[0013] Here, the hydrofluoroolefin (HFO) refrigerant may contain at least one of 1,1,2-trifluoroethylene (R-1123), 1-chloro-2,3,3,3-tetrafluoropropylene (R1224yd(Z)), 2,3,3,3-tetrafluoropropylene (R-1234yf), 1,3,3,3-tetrafluoropropylene (R-1234ze), 1,2,3,3-tetrafluoropropylene (R-1234ye), 3,3,3-trifluoropropylene (R-1243zf), 1,1-difluoroethylene (R-1132a), and 1,2,3,3,3-pentafluoropropylene (R-1225ye).

[0014] Here, the hydrochlorofluorocarbon (HCFC) refrigerant may include at least one of difluorochloromethane (R-22), chlorotetrafluoroethane (R-124), and 1-chloro-1,1-difluoroethane (R-142b).

[0015] Here, the hydrocarbon refrigerant of the non-natural refrigerant may include at least one of propylene (R-1270), isobutane (R-600a), dimethyl ether, isopentane, and pentane.

[0016] Here, the halon or perfluorocarbon (PFC) refrigerant may contain at least one of trifluoroiodomethane (R-13I1), octafluoropropane (R-218), and octafluorocyclobutane (RC318).

[0017] Here, the heating control of the vehicle based on the refrigerant may include the following steps: operating the air conditioning system in heating mode based on a target temperature set according to user input; controlling the compressed temperature of the refrigerant, the flow rate of the refrigerant through the heater core, and the rotation speed of the fan supplying air to the heater core based on the difference between the target temperature and the interior temperature of the vehicle; and after a preset time, controlling the rotation speed of the fan or operating heating electronic components for heating the air passing through the heater core based on the temperature of the air passing through the heater core.

[0018] Here, in the steps of controlling the temperature of the refrigerant, the flow rate of the refrigerant, and the rotation speed of the blower fan, when the difference between the target temperature and the interior temperature of the vehicle exceeds a preset temperature, the refrigerant can be compressed so that the temperature of the refrigerant meets the preset maximum temperature, and the flow rate of the refrigerant is controlled so that the compressed refrigerant passes through the heater core at a preset minimum speed, and the rotation speed of the blower fan is controlled to the minimum speed.

[0019] Here, in the step of controlling the speed of the air supply fan or operating the heating electronic component, after a preset time, the temperature of the air passing through the heater core can be measured, and when the temperature of the air passing through the heater core reaches the limit temperature, the speed of the air supply fan can be gradually increased, and when the temperature of the air passing through the heater core does not reach the limit temperature, the air passing through the heater core can be heated based on the heating electronic component.

[0020] According to another embodiment, a heating control system for an automobile can be provided, the heating control system comprising: a refrigerant circulating through a compressor and a heater core to perform heating control of the automobile, the refrigerant comprising at least one of natural refrigerants, hydrofluorocarbon (HFC) refrigerants, hydrofluoroolefin (HFO) refrigerants, hydrochlorofluorocarbon (HCFC) refrigerants, hydrocarbon refrigerants that are not natural refrigerants, and halon or perfluorocarbon (PFC) refrigerants.

[0021] Here, the natural refrigerant may include at least one of methane (R-50), ammonia (R-717), carbon dioxide (R-744), ethane (R-170), and propane (R-290).

[0022] Here, the hydrofluorocarbon (HFC) refrigerant may include at least one of difluoromethane (R-32), 1,1-difluoroethane (R-152a), pentafluoroethane (R-125), 1,1,1,2-tetrafluoroethane (R-134a), 1,1,1-trifluoroethane (R-143a), trifluoromethane (R-23), fluoroethane (R-161), 1,1,1,2,3,3,3-heptafluoropropane (R-227ea), 1,1,1,2,3,3-hexafluoropropane (R-236ea), 1,1,1,3,3,3-hexafluoropropane (R-236fa), 1,1,1,3,3-pentafluoropropane (R-245fa), and 1,1,1,3,3-pentafluorobutane (R-365mfc).

[0023] Here, the hydrofluoroolefin (HFO) refrigerant may contain at least one of 1,1,2-trifluoroethylene (R-1123), 1-chloro-2,3,3,3-tetrafluoropropylene (R1224yd(Z)), 2,3,3,3-tetrafluoropropylene (R-1234yf), 1,3,3,3-tetrafluoropropylene (R-1234ze), 1,2,3,3-tetrafluoropropylene (R-1234ye), 3,3,3-trifluoropropylene (R-1243zf), 1,1-difluoroethylene (R-1132a), and 1,2,3,3,3-pentafluoropropylene (R-1225ye).

[0024] Here, the hydrochlorofluorocarbon (HCFC) refrigerant may include at least one of difluorochloromethane (R-22), chlorotetrafluoroethane (R-124), and 1-chloro-1,1-difluoroethane (R-142b).

[0025] Here, the hydrocarbon refrigerant of the non-natural refrigerant may include at least one of propylene (R-1270), isobutane (R-600a), dimethyl ether, isopentane, and pentane.

[0026] Here, the halon or perfluorocarbon (PFC) refrigerant may contain at least one of trifluoroiodomethane (R-13I1), octafluoropropane (R-218), and octafluorocyclobutane (RC318).

[0027] Here, the vehicle's heating control system may include: a control panel for setting a target temperature inside the vehicle; a compressor for compressing the refrigerant; a flow rate controller for controlling the flow rate of the refrigerant; a heater core for releasing heat from the compressed refrigerant; a fan for supplying air to the heater core; piping configured to fill and circulate the refrigerant through the compressor and the heater core; a first temperature sensor for measuring the temperature of the compressed refrigerant; a second temperature sensor for measuring the temperature of the air discharged from the heater core; a third temperature sensor for measuring the interior temperature of the vehicle; and a processing unit for: operating the vehicle's air conditioning system in heating mode based on the target temperature set by the user; controlling the compressed temperature of the refrigerant, the flow rate of the refrigerant through the heater core, and the rotation speed of the fan based on the difference between the target temperature and the interior temperature measured by the third temperature sensor; and after a preset time, controlling the rotation speed of the fan or operating heating electronic components for heating the air passing through the heater core based on the temperature of the air passing through the heater core.

[0028] Here, when the difference between the target temperature and the interior temperature of the vehicle exceeds a preset temperature, the processing unit can compress the refrigerant through the compressor to make the temperature of the refrigerant meet the preset maximum temperature, and control the flow rate of the refrigerant through the flow rate controller so that the compressed refrigerant passes through the heater core at a preset minimum speed, and control the speed of the blower fan to the minimum speed.

[0029] Here, the vehicle's heating control system may further include: heating electronic components that heat the air passing through the heater core; after a preset time, the processing unit can measure the temperature of the air passing through the heater core using the second temperature measuring sensor; when the temperature of the air passing through the heater core reaches a limit temperature, the processing unit can gradually increase the speed of the blower fan; when the temperature of the air passing through the heater core does not reach the limit temperature, the processing unit can heat the air passing through the heater core based on the heating electronic components.

[0030] (III) Beneficial Effects

[0031] According to various embodiments, the temperature of the heated air reaches a limit temperature when passing through the heater core, and based on this, the flow rate of the refrigerant, the speed of the blower fan, or the speed of the refrigerant is controlled until the indoor temperature reaches the target temperature, thereby improving the heat exchange efficiency of the heater core.

[0032] According to various embodiments, by controlling the operation of a compressor for compressing refrigerant and a blower for heat exchange with a heater core through a heating control method and apparatus for automobiles, the indoor heating efficiency of electric vehicles can be improved.

[0033] According to various embodiments, the heating control method and apparatus of the air conditioning system control the compression of the refrigerant and the operation of the blower according to the set target temperature, thereby achieving the effect of rapidly raising the indoor temperature to the target temperature. Attached Figure Description

[0034] Figure 1 The diagram schematically illustrates components for operating an air conditioning system according to an embodiment of the present invention.

[0035] Figure 2 The flowchart illustrates the operation of performing heating control of an electric vehicle in an air conditioning system according to an embodiment of the present invention.

[0036] Figure 3 The detailed flow of the operation of performing heating control of an electric vehicle in an air conditioning system according to an embodiment of the present invention is shown.

[0037] Figure 4 A detailed flow diagram of the operation of performing heating control of an electric vehicle in an air conditioning system according to another embodiment of the present invention is shown. Detailed Implementation

[0038] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The advantages and features of the present invention, as well as methods of implementing them, will become clear from the accompanying drawings and the embodiments described in detail below. However, the present invention is not limited to the embodiments disclosed below, but is implemented in various different ways, and the embodiments are provided only to complete the disclosure of the invention and to fully illustrate the scope of the invention to those skilled in the art, to which the invention is defined only by the scope of the claims. Hereinafter, the same reference numerals denote the same components.

[0039] While terms such as "first," "second," etc., are used to describe various elements, components, and / or parts, it is obvious that the elements, components, and / or parts are not limited by these terms. The terms are used only to distinguish one element, component, or part from another. Therefore, within the scope of the present invention, the first element, first component, or first part described below may also be a second element, second component, or second part.

[0040] The terminology used in this specification is for illustrative purposes only and is not intended to limit the invention. In this specification, the singular also includes the plural, unless otherwise specified. The terms "comprises" and / or "made of" as used in this specification indicate that the described components, steps, operations, and / or elements do not exclude the presence or addition of one or more other components, steps, operations, and / or elements.

[0041] Unless otherwise defined, all terms used in this specification (including technical or scientific terms) are to be used as they would be understood by one of ordinary skill in the art to which this invention pertains. Furthermore, unless explicitly defined otherwise, terms as defined in commonly used dictionaries should not be interpreted ideally or overly formally.

[0042] The preferred embodiments of this disclosure will now be described with reference to the accompanying drawings. The accompanying drawings serve to further illustrate the technical concept in conjunction with the detailed description; therefore, this disclosure is not to be limited to the matters described in the drawings.

[0043] This disclosure describes a heating control method and system (e.g., an air conditioning system) for an electric vehicle. Here, the vehicle, as a vehicle that uses an electric motor to drive its wheels, can include a vehicle that uses electricity stored in a rechargeable battery, such as a lithium-ion battery, to drive its wheels.

[0044] The following describes, through various embodiments of the present disclosure, a method and system for supplying warm air to the interior of an electric vehicle (hereinafter, the vehicle) and controlling the interior temperature for heating the interior (e.g., the passenger area). However, this is not a limitation; the heating control method and system can also be applied to interior heating in internal combustion engine vehicles.

[0045] In response, Figure 1 The diagram schematically illustrates components for operating an air conditioning system according to an embodiment of the present invention.

[0046] The heating control system (hereinafter, the air conditioning system) 100 for electric vehicles may include a processing unit 110 for controlling the operation of the air conditioning system.

[0047] According to various embodiments of this disclosure, a system for heating control of an electric vehicle can be described as an air conditioning system 100. However, the air conditioning system 100 may include a system for cooling control of the vehicle interior.

[0048] Based on this, the air conditioning system 100 can control the heating mode (and / or cooling mode) of the air conditioning (heating ventilation, and air conditioning, HVAC) for the vehicle interior through the processing unit 110.

[0049] Here, the air conditioning system 100 includes a compressor 120, a heat core 130, an evaporator 140, and a fan 150, and may include a pipe 10 for connecting the compressor 120, the evaporator 140 and the heat core 130, and a refrigerant flowing in the pipe 10.

[0050] In exemplary embodiments, the refrigerant may include natural refrigerants, hydrofluorocarbon (HFC) refrigerants, hydrofluoroolefin (HFO) refrigerants, hydrochlorofluorocarbon (HCFC) refrigerants, non-natural hydrocarbon refrigerants, halons, or perfluorocarbon (PFC) refrigerants, etc. These can be used alone or in combination of two or more.

[0051] Here, natural refrigerants can include methane (R-50), ammonia (R-717), carbon dioxide (R-744), ethane (R-170), propane (R-290), etc.

[0052] Hydrofluorocarbon (HFC) refrigerants can include difluoromethane (R-32), 1,1-difluoroethane (R-152a), pentafluoroethane (R-125), 1,1,1,2-tetrafluoroethane (R-134a), 1,1,1-trifluoroethane (R-143a), trifluoromethane (R-23), fluoroethane (R-161), 1,1,1,2,3,3,3-heptafluoropropane (R-227ea), 1,1,1,2,3,3-hexafluoropropane (R-236ea), 1,1,1,3,3,3-hexafluoropropane (R-236fa), 1,1,1,3,3-pentafluoropropane (R-245fa), and 1,1,1,3,3-pentafluorobutane (R-365mfc), etc.

[0053] Hydrofluoroolefin (HFO) refrigerants can include 1,1,2-trifluoroethylene (R-1123), 1-chloro-2,3,3,3-tetrafluoropropylene (R1224yd(Z)), 2,3,3,3-tetrafluoropropylene (R-1234yf), 1,3,3,3-tetrafluoropropylene (R-1234ze), 1,2,3,3-tetrafluoropropylene (R-1234ye), 3,3,3-trifluoropropylene (R-1243zf), 1,1-difluoroethylene (R-1132a), and 1,2,3,3,3-pentafluoropropylene (R-1225ye), etc.

[0054] Hydrochlorofluorocarbon (HCFC) refrigerants may include difluorochloromethane (R-22), chlorotetrafluoroethane (R-124), 1-chloro-1,1-difluoroethane (R-142b), etc.

[0055] Hydrocarbon refrigerants that are not natural refrigerants can include propylene (R-1270), isobutane (R-600a), dimethyl ether, isopentane, pentane, etc.

[0056] Halon or perfluorocarbon (PFC) refrigerants may include trifluoroiodomethane (R-13I1), octafluoropropane (R-218), octafluorocyclobutane (RC318), etc.

[0057] The refrigerant can pass through the compressor 120, heater core 130 and evaporator 140 and provide heat for supplying warm air to the vehicle's interior 11.

[0058] For this purpose, compressor 120 can compress the refrigerant and discharge the compressed refrigerant toward heater core 130. Based on this, the refrigerant discharged from compressor 120 can move back to compressor 120 and circulate after passing through heater core 130 and evaporator 140.

[0059] More specifically, compressor 120 can pressurize (or compress) low-temperature and low-pressure gaseous refrigerant to convert it into high-temperature and high-pressure gaseous refrigerant, and supply it to heater core 130.

[0060] According to one embodiment, compressor 120 can be configured to control the temperature of the refrigerant flowing out of compressor 120 by controlling the rotational speed (revolutions per minute (rpm) or revolutions per second (prs)) (or, cylinder pressure (pascal (Pa), atmosphere (atm), pounds per square inch (psi) or bar)) and / or compression ratio.

[0061] The compressor 120 may include at least one temperature measuring sensor for measuring the temperature of the compressed refrigerant and / or at least one pressure measuring sensor for measuring the pressure of the compressed refrigerant.

[0062] The heater core 130 can be configured to release heat from a high-temperature, high-pressure gaseous refrigerant, thereby condensing it into a high-temperature, high-pressure liquid refrigerant. Here, the heater core 130 can be configured to allow heat exchange while air passes through it, and the air passing through the heater core 130 can be heated based on the heat released from the refrigerant.

[0063] The heater core 130 may include a heat exchange section for heat exchange between the refrigerant and the air. Here, the heat exchange section includes at least one heat exchange fin or heat exchange surface, and can achieve effective heat exchange between the air and the refrigerant.

[0064] According to one embodiment, the heater core 130 may be configured to have the same or similar structure as the condenser.

[0065] The high-temperature and high-pressure liquid refrigerant in the heater core 130 can be converted into a low-temperature and low-pressure liquid refrigerant and supplied to the evaporator 140.

[0066] Evaporator 140 can perform heat exchange on low-temperature and low-pressure liquid refrigerant to convert it into low-temperature and low-pressure gaseous refrigerant. The low-temperature and low-pressure gaseous refrigerant can be supplied back to compressor 120 to allow the refrigerant to circulate within line 10.

[0067] The air supply fan 150 can be configured to be located at the front or rear end of the heater core 130 to control the flow of air through the heater core 130. More specifically, the air supply fan 150 can be configured to be located at the front end (e.g., air inlet) or rear end (e.g., air outlet) of the heater core 130 to control the flow of air through the heater core 130.

[0068] Here, the air supply fan 150 may include at least one fan capable of controlling its rotational speed (rpm or rps). Furthermore, the storage unit (not shown) may include information related to the minimum controllable rotational speed or the maximum rotational speed of each fan configured on the air supply fan 150.

[0069] In addition, the air conditioning system 100 may be configured with a channel (e.g., a duct) so that air passing through the heater core 130 flows into the interior 11 of the electric vehicle.

[0070] The heating electronic component 160 may include at least one of various electronic components that generate heat, such as a PTC heater (positive temperature coefficient heater), an induction heating device, a thermoelectric heater, an infrared heating device, ceramic heaters, and a resistance heating device such as a nichrome wire or a heating film.

[0071] At this time, the heating electronic component 160 can be configured such that its heating side contacts the heater core 130, or that it contacts the air flowing out of the heater core 130 at its rear end (e.g., the air outlet).

[0072] Here, when the heating surface of the heating electronic component 160 is in contact with air flowing from the heater core 130, the heating electronic component 160 can be disposed on a pipe connected to the rear end (e.g., air outlet) of the heater core 130. In this case, the heating surface of the heating electronic component 160 can be configured by forming a hole (e.g., a perforation) in a portion of one side of the pipe, and by positioning (or inserting) the heating surface of the heating electronic component 160 toward the interior of the pipe, or by placing it inside the pipe and sealing it.

[0073] The heating electronic component 160 can generate heat on the heating surface based on the control of the processing unit 110. The generated heat can be transferred to the air inside the pipe, thereby heating the air passing through the heater core 130.

[0074] When the heating electronic component 160 is configured to contact the heater core 130, the heating surface of the heating electronic component 160 can be configured to contact the heat exchange section of the heater core 130, thereby directly heating the heat exchange section.

[0075] The flow rate controller 170 can control the flow rate (and / or flow rate) of the refrigerant flowing in the line 10. More specifically, the flow rate controller 170 can control the flow rate of the refrigerant passing through the heater core 130. For this purpose, the flow rate controller 170 can be positioned between the compressor 120 and the heater core 130 to control the flow rate of the refrigerant flowing into the heater core 130.

[0076] The flow controller 170 may include at least one of the following components: a sensor (e.g., a flow rate sensor), a valve, and a pressure regulator, for measuring the flow rate or velocity of the refrigerant flowing in the line 10.

[0077] As described above, the air conditioning system 100 is described as including an evaporator 140, a compressor 120, a heater core 130, and a blower fan 150, but the air conditioning system 100 may further include at least one component for refrigerant circulation.

[0078] For example, although not in Figure 1 As shown, the air conditioning system 100 may further include an expansion valve between the heater core 130 and the evaporator 140. The expansion valve 315 may reduce the pressure (or expand) of the high-temperature and high-pressure liquid refrigerant to convert it into a low-temperature and low-pressure liquid refrigerant, and supply the converted refrigerant to the evaporator 140.

[0079] In addition, a condenser for performing a phase change of the refrigerant compressed from the compressor 120 can be connected between the compressor 120 and the heater core 130.

[0080] Furthermore, the air conditioning system 100 may have at least one heat exchanger 180 disposed between the evaporator 140 and the compressor 120. The heat exchanger 180 may be configured to be connected to at least one heating element 190, thereby transferring heat from the heating element 190 to the refrigerant via the heat exchanger 180.

[0081] Here, the heating element 190 may include at least one of a battery, wiring, a motor, and a transmission. The heating element 190 and the heat exchanger 180 may be connected by at least a portion of a heat transfer medium 171 such as a heat pipe, a thermally conductive polymer, a thermally conductive pad, graphene, or thermally conductive rubber.

[0082] In addition, the air conditioning system 100 may include at least one first temperature measuring sensor S1 for measuring the temperature of the refrigerant between the compressor 120 and the heater core 130.

[0083] For example, a first temperature measuring sensor S1 can be installed on the pipe 10 or the heater core 130 to measure the temperature of the refrigerant.

[0084] According to one embodiment, at least one first temperature measuring sensor S1 may be provided at a preset position (first position) at the inlet of the heater core 130.

[0085] In addition, the air conditioning system 100 may include at least one second temperature measuring sensor S2 for measuring the air temperature at a preset position (second position) after passing through the heater core 130.

[0086] In addition, the air conditioning system 100 may include at least one third temperature measuring sensor S3 in a preset position (third position) inside the interior 11 (passenger seat) for measuring the interior temperature of the electric vehicle.

[0087] Here, the third location may include at least one area of ​​the driver's seat area and the passenger seat area of ​​the vehicle interior 11. The third temperature measurement sensor S3 may be disposed in at least a portion of the seat, body frame, dashboard, floor, and ceiling.

[0088] As described above, the processing unit 110 acquires at least a portion of the following temperatures: the temperature of the refrigerant at a first location measured by the first temperature measuring sensor S1, the air temperature at a second location measured by the second temperature measuring sensor S2, and the indoor temperature at a third location measured by the third temperature measuring sensor S3; and can acquire these temperatures at preset time intervals or in real time.

[0089] Here, two or more of the following can be measured simultaneously (or at the same time): the temperature of the refrigerant at the first location measured by the first temperature sensor S1, the air temperature at the second location measured by the second temperature sensor S2, and the indoor temperature at the third location measured by the third temperature sensor S3.

[0090] For the operation of the air conditioning system 100 configured as described above, the processing unit 110 includes at least one processor and can process various data for the operation of the device including the air conditioning system 100 through at least one program (application, tool, plug-in, etc.).

[0091] The processing unit 110 is connected to at least one component included in the air conditioning system 100 (e.g., compressor 120, heater core 130, evaporator 140, heat exchanger 180, blower fan 150, heating element 190, first temperature measuring sensor S1, second temperature measuring sensor S2 or third temperature measuring sensor S3), and can control the operation of at least one component.

[0092] The processing unit 110 can execute programs (applications, tools, plug-ins, etc.) for controlling the operation of connected components. For example, the processing unit 110 can control the speed of the compressor 120 and the speed of the refrigerant flowing into the heater core 130 through the flow controller 170, or adjust the speed of the blower fan 150, thereby optimizing the overall efficiency of the air conditioning system.

[0093] Therefore, although not in Figure 1 As shown, the air conditioning system 100 may further include at least one storage unit (not shown) containing a program for the operation of the processing unit 110.

[0094] The storage unit (not shown) may store various data processed by at least one component of the air conditioning system 100. For example, the data may include programs for processing control commands, data processed by the programs, or related input and output data.

[0095] More specifically, the storage unit (not shown) may include artificial neural network algorithms, blockchain algorithms, deep learning algorithms, regression analysis algorithms, and artificial intelligence algorithms based on at least a portion of related mechanisms, operators, language models, and big data for processing control commands of the processing unit 110.

[0096] The storage unit (not shown) may include volatile memory, non-volatile memory, and / or a computer-readable recording medium. In this case, the computer-readable recording medium may store a computer program, based on various embodiments of the present disclosure, for the processing unit 110 to perform heating control operations on an electric vehicle.

[0097] In addition, the air conditioning system 100 may further include at least one communication unit (not shown) for communication between the processing unit 110 and the components or between the processing unit 110 and external devices of the air conditioning system 100.

[0098] The communication unit (not shown) can support the establishment of wired communication channels between internal components of the air conditioning system 100 and / or at least one other external device (e.g., a user device or a server), the establishment of wireless communication channels, and communication performed through the established communication channels.

[0099] The heating control method for electric vehicles will now be described in detail based on the air conditioning system described above. Figure 2 The flowchart illustrates the operation of performing heating control of an electric vehicle in an air conditioning system according to an embodiment of the present invention. Figure 3 The detailed flow of the operation of performing heating control of an electric vehicle in an air conditioning system according to an embodiment of the present invention is shown. Figure 4 A detailed flow diagram of the operation of performing heating control of an electric vehicle in an air conditioning system according to another embodiment of the present invention is shown.

[0100] In step 201, the processing unit 110 may operate the air conditioning system in heating mode based on the target temperature set by the user input. Here, the target temperature may be the target temperature of the vehicle interior (e.g., passenger seat) to be achieved by operating the air conditioning system.

[0101] More specifically, the processing unit 110 can acquire user input for setting a target temperature inside the vehicle interior 11. For example, the processing unit 110 can acquire user input for setting the target temperature through a control panel (not shown) of the air conditioning system 100 located inside the vehicle interior 11.

[0102] At this time, the processing unit 110 can confirm the setting of the heating mode based on user input, or determine the operation of the heating mode based on the difference between the target temperature and the interior temperature of the vehicle.

[0103] For example, when the air conditioning system 100 is switched to the on state, the processing unit 110 can measure the indoor temperature inside the vehicle through the third temperature measurement sensor S3. The processing unit 110 can calculate the difference between the set target temperature and the indoor temperature, and determine the operation of the heating mode when the indoor temperature is lower than the target temperature.

[0104] At this time, when the indoor temperature is lower than the target temperature, the processing unit 110 can also determine the operation of the heating mode when there is a temperature difference exceeding the preset temperature (first temperature difference) (for example, 5 degrees Celsius (°C)).

[0105] Furthermore, when the air conditioning system 100 is switched to the on state or the target temperature is set, the processing unit 110 can measure the temperature of the compressed refrigerant through the first temperature measuring sensor S1, or measure the temperature of the air passing through the heater core 130 through the second temperature measuring sensor S2.

[0106] As described above, when measuring at least a portion of the temperatures of the compressed refrigerant, the air passing through the heater core 130, and the vehicle's interior temperature, the processing unit 110 can perform the measurement at a specific measurement point in time. However, it is not limited to this; the processing unit 110 can also perform the measurement at a preset time (time interval) or in real time thereafter.

[0107] In step 203, the processing unit 110 can control the temperature of the refrigerant after compression, the flow rate of the refrigerant through the heater core, and the rotation speed of the fan supplying air to the heater core based on the difference between the target temperature and the interior temperature of the vehicle.

[0108] pass Figure 3 To provide a more detailed explanation, the processing unit 110 can determine whether the difference between the target temperature and the interior temperature of the vehicle exceeds a preset temperature (second temperature difference (e.g., 10 degrees Celsius (°C))) (step 301).

[0109] At this point, when the difference between the target temperature and the vehicle's interior temperature does not exceed the second temperature difference value, the processing unit 110 can terminate the process. Figure 2 (or Figure 3 Examples of ).

[0110] However, when the difference between the target temperature and the vehicle's interior temperature exceeds the second temperature difference, the processing unit 110 can compress the refrigerant through the compressor 120, thereby ensuring that the refrigerant temperature meets the preset maximum temperature (step 303).

[0111] Here, the preset maximum temperature of the refrigerant refers to the highest temperature that can be achieved by compressing the refrigerant through the compressor 120, which can be a state of a specific temperature set in advance.

[0112] The processing unit 110 can measure the temperature of the compressed refrigerant using a temperature measuring sensor included in the compressor 120. The processing unit 110 can control the compressor 120 to compress the refrigerant until the compressed refrigerant reaches a preset maximum temperature.

[0113] In addition, the processing unit 110 can control the flow rate of the refrigerant so that the compressed refrigerant passes through the heater core at a preset minimum speed (step 305).

[0114] Here, the preset minimum speed of the refrigerant refers to the speed at which the refrigerant flows into the heater core 130 through the flow controller 170, which can be a state where a specific speed is preset.

[0115] More specifically, the minimum refrigerant velocity can be set to a specific value within the range of more than 0 m / s and less than or equal to 15 m / s.

[0116] Furthermore, the minimum refrigerant velocity can be set differently depending on the phase of the refrigerant flowing into the heater core 130 (or exiting from the compressor 120). For example, when the refrigerant phase is gaseous, the minimum refrigerant velocity controlled by the flow rate controller 170 can be set to a specific value within the range of more than 5 m / s and less than or equal to 15 m / s. Conversely, when the refrigerant phase is liquid, the minimum refrigerant velocity controlled by the flow rate controller 170 can be set to a specific value within the range of more than 0.5 m / s and less than or equal to 2 m / s.

[0117] However, the range used to set the minimum speed when the refrigerant is a gas or liquid is exemplary and can be varied within a range of more than 0 m / s and less than or equal to 15 m / s.

[0118] As described above, the processing unit 110 can control the flow rate controller 170 so that the refrigerant flows into the heater core 130 at a preset minimum speed.

[0119] Furthermore, the processing unit 110 can control the speed of the air supply fan to the minimum speed (step 307). More specifically, the processing unit 110 can control the air supply fan 150 so that the fan speed of the air supply fan 150 rotates at an operable minimum speed.

[0120] Reference Figure 3This illustrates the parallel execution of steps 303, 305, and 307. However, steps 303, 305, and 307 can also be performed in a preset order.

[0121] According to one embodiment, the processing unit 110 may perform the operation of step 303, measuring the temperature of the compressed refrigerant flowing out of the compressor 120, and performing the operations of steps 305 and 307 when the temperature of the compressed refrigerant meets the preset maximum temperature.

[0122] Here, the processing unit 110 can determine whether to perform steps 305 and 307 based on the temperature of the refrigerant measured by the refrigerant temperature measuring sensor of the compressor 120 and / or the first temperature measuring sensor S1.

[0123] However, when the temperature of the compressed refrigerant meets the preset maximum temperature, the processing unit 110 can perform the operation of step 305. At this time, during the operation of step 305, when the speed of the refrigerant flowing out through the flow rate controller 170 meets the preset minimum speed, the processing unit 110 can perform the operation of step 307.

[0124] After performing steps 303, 305 and 307, the processing unit 110 can execute step 205.

[0125] In step 205, the processing unit 110 may, after a preset time, control the speed of the blower fan based on the temperature of the air passing through the heater core, or heat the air passing through the heater core based on the heating electronic components.

[0126] Reference Figure 4 To provide a more detailed explanation, the processing unit 110 can measure the interior temperature of the vehicle and determine whether the interior temperature has reached the target temperature (step 401).

[0127] Here, the processing unit 110 can determine whether the indoor temperature has reached the target temperature after the operation of step 401 has started and a preset first time has elapsed.

[0128] When the measured indoor temperature reaches the target temperature, the processing unit 110 can terminate the process. Figure 2 (or Figure 4 Examples of ).

[0129] However, when the measured indoor temperature does not reach the target temperature, the processing unit 110 can determine whether the air temperature passing through the heater core has reached the preset limit temperature (step 403).

[0130] Here, the preset limit temperature for the air passing through the heater core 130 refers to the highest temperature that the air flowing into the heater core 130 based on the operation of step 203 can reach through heat exchange, which can be a state of a preset specific temperature.

[0131] When the air passing through the heater core 130 reaches the preset limit temperature, the processing unit 110 can perform the operation of step 405; when the preset limit temperature is not reached, the processing unit 110 can perform the operation of step 407.

[0132] Here, when it is determined to perform the operation of step 405, the processing unit 110 can confirm the operating status of the heating electronic component 160. When the operating status of the heating electronic component 160 is the start state, the processing unit 110 can switch the heating electronic component 160 to the off state.

[0133] As described above, the processing unit 110 is described as performing the operation of switching the heating electronic component 160 to the off state in step 405, but it may also be performed before step 405.

[0134] When the air passing through the heater core 130 reaches the preset limit temperature, the processing unit 110 can gradually increase the speed of the blower fan 150 (step 405).

[0135] Here, the speed of the air supply fan 150 can be from the lowest speed to the highest speed, and the speed can be divided into levels according to a preset speed value or a preset speed value unit.

[0136] Here, each speed level can be set within the range of the minimum to the maximum speed of the blower fan in specification 150.

[0137] Here, the fan speed level can be preset so that the higher the fan speed, the larger the number, and the lower the fan speed, the smaller the number. Additionally, the preset speed level for the air supply fan 150 can be stored in the memory (not shown).

[0138] In step 405, the processing unit 110 can cause the air supply fan 150 to operate at a speed that is a preset level higher than the speed level of the air supply fan 150 in operation (e.g., level 1 or level 2).

[0139] After performing step 405, the processing unit 110 can perform step 401 again.

[0140] When the air passing through the heater core 130 does not reach the preset limit temperature, the processing unit 110 can heat the air passing through the heater core based on the heating electronic components (step 407).

[0141] Here, the processing unit 110 can confirm the operating status of the heating electronic component 160. When the operating status of the heating electronic component 160 is off, the processing unit 110 can switch the heating electronic component 160 to the on state.

[0142] After performing step 407, the processing unit 110 can perform step 401 again. For example, when the heating electronic component 160 is in the start-up state, and the temperature change (e.g., rise) of the air passing through the heater core 130 is confirmed, the processing unit 110 can perform step 401.

[0143] When step 401 is executed again after step 405 or step 407, the processing unit 110 can determine whether the indoor temperature has reached the target temperature after the second time has elapsed since the start of step 401.

[0144] Here, the first time and the second time can be set to different times from each other. In addition, the second time can be set to a time shorter than the first time.

[0145] After step 401, when the measured indoor temperature reaches the target temperature, the processing unit 110 can terminate the process. Figure 2 (or Figure 4 In this embodiment, the processing unit 110 can confirm the operating state of the heating electronic component 160. When the operating state of the heating electronic component 160 is the start state, the processing unit 110 can switch the heating electronic component 160 to the off state.

[0146] According to various embodiments, when the speed of the air supply fan 150 is gradually increased in the operation of step 405, the processing unit 110 can determine whether the speed of the air supply fan 150 has reached the speed set by the user (e.g., the user-set wind speed or air volume).

[0147] At this time, when the speed of the air supply fan 150 reaches the speed set by the user, if it is necessary to further increase the speed level of the air supply fan 150, the processing unit 110 can control the flow rate controller 170 to gradually increase the flow rate of the refrigerant.

[0148] Here, the refrigerant flow rate can be a state where the flow rate is divided into levels, ranging from the lowest speed to the highest speed, using preset speed values ​​or preset speed value units.

[0149] Here, each speed level can be set within the range of the minimum to the maximum speed control value on the flow controller 170 specification.

[0150] Here, the refrigerant flow rate level can be preset so that the higher the refrigerant's movement speed, the larger the number, and the lower the movement speed, the smaller the number. Alternatively, the preset flow rate level for the refrigerant can be stored in a storage unit (not shown).

[0151] In step 405, the processing unit 110 can control the flow rate at a speed that is higher than the flow rate level of the moving refrigerant (e.g., level 1 or level 2).

[0152] Here, when the refrigerant flow rate is determined, the processing unit 110 can stop increasing the speed of the blower fan 150 and control the refrigerant flow rate.

[0153] After performing step 405, the processing unit 110 can perform step 401 again.

[0154] According to various embodiments, when the processing unit 110 gradually increases the speed of the blower fan 150 in the operation of step 405, when the speed of the blower fan 150 reaches the speed set by the user (e.g., the user-set wind speed or air volume) and the flow rate of the refrigerant reaches the preset maximum flow rate, the processing unit 110 can gradually reduce the temperature of the refrigerant compressed by the compressor 120.

[0155] Here, the temperature of the refrigerant can be a range from the lowest temperature to the highest temperature, divided into temperature levels according to preset temperature values ​​or preset temperature value units.

[0156] Here, each temperature level can be set within the range of the refrigerant's minimum to maximum temperature.

[0157] Here, the temperature level of the refrigerant can be preset so that the higher the temperature, the larger the number, and the lower the temperature, the smaller the number. Alternatively, the preset temperature level for the refrigerant can be stored in a storage unit (not shown).

[0158] In step 405, the processing unit 110 can control the temperature of the refrigerant at a preset level (e.g., level 1 or level 2) lower than the temperature level of the refrigerant compressed by the compressor 120.

[0159] Here, when the temperature of the refrigerant is determined, the processing unit 110 can stop the operation of increasing the speed level of the blower fan 150 and the operation of increasing the refrigerant flow rate, and control the temperature of the refrigerant compressed by the compressor 120.

[0160] After performing step 405, the processing unit 110 can perform step 401 again.

[0161] According to the above embodiment, when the measured indoor temperature reaches the target temperature by performing step 401, the processing unit 110 can end the process. Figure 2 (or Figure 4 Examples of ).

[0162] Here, when the measured indoor temperature reaches the target temperature, the processing unit 110 can adjust the speed of the air supply fan 150 to the user-set average speed and then end the process. Figure 2 (or Figure 4 Examples of ).

[0163] Here, the user-set average speed can be the average speed of the air supply fan as set by the user. In this case, when the air supply fan speed at the time point when the acquired indoor temperature meets the target temperature is the user-set speed, the air supply fan speed can be maintained.

[0164] Then, the processing unit 110 can control the temperature of the refrigerant compressed by the compressor 120 and / or the flow rate of the refrigerant through the flow controller 170, so as to ensure that the air temperature through the heater core 130 meets the target temperature while maintaining the user-set average speed (or user-set speed).

[0165] According to the above embodiment, when the temperature of the air heated by the heater core 130 reaches the limit temperature, the flow rate of the refrigerant, the rotation speed of the blower fan 150, or the speed of the refrigerant is controlled until the indoor temperature reaches the target temperature, thereby improving the heat exchange efficiency of the heater core 130.

[0166] According to various embodiments, by controlling the operation of a compressor for compressing refrigerant and a blower for heat exchange with a heater core through a heating control method and apparatus for automobiles, the indoor heating efficiency of electric vehicles can be improved.

[0167] According to various embodiments, the heating control method and apparatus of the air conditioning system control the compression of the refrigerant and the operation of the blower according to the set target temperature, thereby achieving the effect of rapidly raising the indoor temperature to the target temperature.

[0168] As described above, the embodiments have been illustrated with reference to the accompanying drawings, but those skilled in the art can apply various technical modifications and variations based on the various embodiments.

[0169] For example, the described technique may be performed in a different order than the method described, or the components of the described system, structure, circuit, etc. may be combined or assembled in a different form than the method described, or the appropriate result may be achieved by replacing or substituting them with other components or equivalents.

[0170] Therefore, other embodiments, other implementations, and equivalents of the claims should also be included within the scope of the claims.

Claims

1. A heating control method for an automobile, wherein the heating control method utilizes a refrigerant to perform heating control of the automobile, wherein, The refrigerant includes at least one of the following: natural refrigerant, hydrofluorocarbon (HFC) refrigerant, hydrofluoroolefin (HFO) refrigerant, hydrochlorofluorocarbon (HCFC) refrigerant, hydrocarbon refrigerant (non-natural refrigerant), and halon or perfluorocarbon (PFC) refrigerant.

2. The heating control method for an automobile according to claim 1, wherein, The natural refrigerant contains at least one of methane (R-50), ammonia (R-717), carbon dioxide (R-744), ethane (R-170), and propane (R-290).

3. The heating control method for an automobile according to claim 1, wherein, The hydrofluorocarbon (HFC) refrigerant comprises at least one of the following: difluoromethane (R-32), 1,1-difluoroethane (R-152a), pentafluoroethane (R-125), 1,1,1,2-tetrafluoroethane (R-134a), 1,1,1-trifluoroethane (R-143a), trifluoromethane (R-23), fluoroethane (R-161), 1,1,1,2,3,3,3-heptafluoropropane (R-227ea), 1,1,1,2,3,3-hexafluoropropane (R-236ea), 1,1,1,3,3,3-hexafluoropropane (R-236fa), 1,1,1,3,3-pentafluoropropane (R-245fa), and 1,1,1,3,3-pentafluorobutane (R-365mfc).

4. The heating control method for an automobile according to claim 1, wherein, The hydrofluoroolefin (HFO) refrigerant comprises at least one of 1,1,2-trifluoroethylene (R-1123), 1-chloro-2,3,3,3-tetrafluoropropylene (R1224yd(Z)), 2,3,3,3-tetrafluoropropylene (R-1234yf), 1,3,3,3-tetrafluoropropylene (R-1234ze), 1,2,3,3-tetrafluoropropylene (R-1234ye), 3,3,3-trifluoropropylene (R-1243zf), 1,1-difluoroethylene (R-1132a), and 1,2,3,3,3-pentafluoropropylene (R-1225ye).

5. The heating control method for an automobile according to claim 1, wherein, The hydrochlorofluorocarbon (HCFC) refrigerant contains at least one of difluorochloromethane (R-22), tetrafluorochloroethane (R-124), and 1-chloro-1,1-difluoroethane (R-142b).

6. The heating control method for an automobile according to claim 1, wherein, The non-natural refrigerant hydrocarbon refrigerant includes at least one of propylene (R-1270), isobutane (R-600a), dimethyl ether, isopentane, and pentane.

7. The heating control method for an automobile according to claim 1, wherein, The halon or perfluorocarbon (PFC) refrigerant contains at least one of trifluoroiodomethane (R-13I1), octafluoropropane (R-218), and octafluorocyclobutane (RC318).

8. The heating control method for an automobile according to claim 1, wherein the heating control of the automobile based on the refrigerant includes the following steps: Based on the target temperature set by the user, the air conditioning system operates in heating mode; Based on the difference between the target temperature and the interior temperature of the vehicle, the compressed temperature of the refrigerant, the flow rate of the refrigerant through the heater core, and the rotation speed of the fan supplying air to the heater core are controlled. as well as After a preset time has elapsed, the speed of the blower fan or the operation of heating electronic components for heating the air passing through the heater core is controlled based on the temperature of the air passing through the heater core.

9. The heating control method for an automobile according to claim 8, wherein, In the steps of controlling the temperature of the refrigerant, the flow rate of the refrigerant, and the rotation speed of the blower fan, When the difference between the target temperature and the interior temperature of the vehicle exceeds a preset temperature, the refrigerant is compressed to meet the preset maximum temperature, and the flow rate of the refrigerant is controlled so that the compressed refrigerant passes through the heater core at a preset minimum speed, and the speed of the blower fan is controlled to the minimum speed.

10. The heating control method for an automobile according to claim 8, wherein, In the steps of controlling the speed of the air supply fan or operating the heating electronic components, After a preset time, the temperature of the air passing through the heater core is measured. When the temperature of the air passing through the heater core reaches the limit temperature, the rotation speed of the blower fan is gradually increased; when the temperature of the air passing through the heater core does not reach the limit temperature, the air passing through the heater core is heated based on the heating electronic components.

11. A heating control system for an automobile, comprising: The refrigerant circulates through the compressor and heater core to perform the vehicle's heating control. The refrigerant includes at least one of the following: natural refrigerant, hydrofluorocarbon refrigerant, hydrofluoroolefin refrigerant, hydrochlorofluorocarbon refrigerant, hydrocarbon refrigerant (non-natural refrigerant), and halon or perfluorocarbon refrigerant.

12. The heating control system for an automobile according to claim 11, wherein, The natural refrigerant contains at least one of methane (R-50), ammonia (R-717), carbon dioxide (R-744), ethane (R-170), and propane (R-290). The hydrofluorocarbon (HFC) refrigerant comprises at least one of the following: difluoromethane (R-32), 1,1-difluoroethane (R-152a), pentafluoroethane (R-125), 1,1,1,2-tetrafluoroethane (R-134a), 1,1,1-trifluoroethane (R-143a), trifluoromethane (R-23), fluoroethane (R-161), 1,1,1,2,3,3,3-heptafluoropropane (R-227ea), 1,1,1,2,3,3-hexafluoropropane (R-236ea), 1,1,1,3,3,3-hexafluoropropane (R-236fa), 1,1,1,3,3-pentafluoropropane (R-245fa), and 1,1,1,3,3-pentafluorobutane (R-365mfc). The hydrofluoroolefin (HFO) refrigerant comprises at least one selected from the following: 1,1,2-trifluoroethylene (R-1123), 1-chloro-2,3,3,3-tetrafluoropropylene (R1224yd(Z)), 2,3,3,3-tetrafluoropropylene (R-1234yf), 1,3,3,3-tetrafluoropropylene (R-1234ze), 1,2,3,3-tetrafluoropropylene (R-1234ye), 3,3,3-trifluoropropylene (R-1243zf), 1,1-difluoroethylene (R-1132a), and 1,2,3,3,3-pentafluoropropylene (R-1225ye). The hydrochlorofluorocarbon (HCFC) refrigerant contains at least one of difluorochloromethane (R-22), chlorotetrafluoroethane (R-124), and 1-chloro-1,1-difluoroethane (R-142b). The non-natural hydrocarbon refrigerant mentioned includes at least one of propylene (R-1270), isobutane (R-600a), dimethyl ether, isopentane, and pentane. The halon or perfluorocarbon (PFC) refrigerant contains at least one of trifluoroiodomethane (R-13I1), octafluoropropane (R-218), and octafluorocyclobutane (RC318).

13. The heating control system for an automobile according to claim 11, comprising: Control panel, set the target temperature inside the car; The compressor compresses the refrigerant; A flow rate controller controls the flow rate of the refrigerant; The heater core, through which the compressed refrigerant releases heat; A blower fan supplies air to the heater core; Piping is configured to fill and circulate the refrigerant through the compressor and the heater core; A first temperature measuring sensor measures the temperature of the compressed refrigerant; A second temperature sensor measures the temperature of the air discharged from the heater core; The third temperature sensor measures the interior temperature of the vehicle. as well as The processing unit performs the following processing: based on the target temperature set according to the user input, it causes the car's air conditioning system to operate in heating mode; Based on the difference between the target temperature and the indoor temperature measured by the third temperature sensor, the compressed temperature of the refrigerant, the flow rate of the refrigerant through the heater core, and the rotation speed of the blower fan are controlled; and after a preset time, based on the temperature of the air passing through the heater core, the rotation speed of the blower fan or the operation of heating electronic components for heating the air passing through the heater core is controlled.

14. The heating control system for an automobile according to claim 13, wherein, When the difference between the target temperature and the interior temperature of the vehicle exceeds a preset temperature, the processing unit compresses the refrigerant through the compressor to make the temperature of the refrigerant meet the preset maximum temperature, and controls the flow rate of the refrigerant through the flow rate controller so that the compressed refrigerant passes through the heater core at a preset minimum speed, and controls the speed of the blower fan to the minimum speed.

15. The heating control system for an automobile according to claim 13, further comprising: Heating electronic components heat the air passing through the heater core. After a preset time has elapsed, the processing unit measures the temperature of the air passing through the heater core using the second temperature sensor. When the temperature of the air passing through the heater core reaches the limit temperature, the processing unit gradually increases the rotation speed of the blower fan. When the temperature of the air passing through the heater core does not reach the limit temperature, the processing unit heats the air passing through the heater core based on the heating electronic components.

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