WO2023200211A1 - 차량용 공조장치 - Google Patents
차량용 공조장치 Download PDFInfo
- Publication number
- WO2023200211A1 WO2023200211A1 PCT/KR2023/004838 KR2023004838W WO2023200211A1 WO 2023200211 A1 WO2023200211 A1 WO 2023200211A1 KR 2023004838 W KR2023004838 W KR 2023004838W WO 2023200211 A1 WO2023200211 A1 WO 2023200211A1
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- WO
- WIPO (PCT)
- Prior art keywords
- heating
- vehicle
- heat exchanger
- air
- heat exchange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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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 devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00807—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a specific way of measuring or calculating an air or coolant temperature
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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 devices
- B60H1/34—Nozzles; Air-diffusers
-
- 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 devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00835—Damper doors, e.g. position control
- B60H1/00849—Damper doors, e.g. position control for selectively commanding the induction of outside or inside air
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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 devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/0073—Control systems or circuits characterised by particular algorithms or computational models, e.g. fuzzy logic or dynamic models
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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 devices
- B60H1/02—Heating, cooling or ventilating devices the heat being derived from the propulsion plant
- B60H1/03—Heating, cooling or ventilating devices the heat being derived from the propulsion plant and from a source other than the propulsion plant
- B60H1/034—Heating, cooling or ventilating devices the heat being derived from the propulsion plant and from a source other than the propulsion plant from the cooling liquid of the propulsion plant and from an electric heating device
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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 devices
- B60H1/02—Heating, cooling or ventilating devices the heat being derived from the propulsion plant
- B60H1/04—Heating, cooling or ventilating devices the heat being derived from the propulsion plant from cooling liquid of the plant
- B60H1/08—Heating, cooling or ventilating devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator
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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 devices
- B60H1/22—Heating, cooling or ventilating devices the heat source being other than the propulsion plant
- B60H1/2215—Heating, cooling or ventilating devices the heat source being other than the propulsion plant the heat being derived from electric heaters
- B60H1/2218—Heating, cooling or ventilating devices the heat source being other than the propulsion plant the heat being derived from electric heaters controlling the operation of electric heaters
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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 devices
- B60H1/22—Heating, cooling or ventilating devices the heat source being other than the propulsion plant
- B60H1/2215—Heating, cooling or ventilating devices the heat source being other than the propulsion plant the heat being derived from electric heaters
- B60H1/2225—Heating, cooling or ventilating devices the heat source being other than the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating air
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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 devices
- B60H1/22—Heating, cooling or ventilating devices the heat source being other than the propulsion plant
- B60H1/2215—Heating, cooling or ventilating devices the heat source being other than the propulsion plant the heat being derived from electric heaters
- B60H1/2226—Electric heaters using radiation
Definitions
- the present invention relates to an air conditioning system for a vehicle, and more specifically, in a heating mode, it can effectively and quickly heat the floor of the vehicle interior while minimizing energy consumption, and can heat the floor portion of the vehicle interior effectively and quickly, and discharge air from the top and bottom of the vehicle interior.
- This relates to an air conditioning system for vehicles that can improve interior comfort by differentiating temperatures.
- Vehicles are equipped with air conditioning systems to cool and heat the interior of the vehicle.
- this air conditioning device is provided with an air conditioning case (Case) (1), and an internal flow path (1a) of the air conditioning case (1) includes a heat exchange device for cooling (3) and a heat exchange device for heating ( 5) is installed.
- the cooling heat exchanger 3 cools the air that flows into the air inlet (not shown) and then is blown into the vehicle interior along the internal passage 1a of the air conditioning case 1.
- the heating heat exchanger 5 heats the air that flows into the air inlet and then is blown into the vehicle interior along the internal passage 1a of the air conditioning case 1.
- the heating heat exchanger 5 includes a heater core using engine coolant or an indoor heat exchanger using the refrigerant of a heat pump (hereinafter, the heater core or indoor heat exchanger will be described by assigning reference numeral “5a”). ), the introduced high-temperature engine coolant heat or refrigerant heat is released to heat the air blown into the vehicle interior.
- the heating heat exchanger 5 further includes a PTC heater 5b installed on the downstream side of the heater core or indoor heat exchanger 5a.
- the PTC heater (5b) generates heat by applied electricity, and when the heat generation amount of the heater core or the indoor heat exchanger (5a) is insufficient, the PTC heater (5b) is used together with the heater core or the indoor heat exchanger (5a) or the heater core or the indoor heat exchanger (5a). Instead of the heat exchanger (5a), it serves to heat the air blown into the vehicle interior.
- the air conditioning case 1 is equipped with a plurality of air discharge ports for discharging the air from the internal flow path 1a into the vehicle interior.
- defrost vent (7) As the air outlets, there is a defrost vent (7), a face vent (8), a floor vent (9), and a rear floor vent (10).
- the defrost vent 7 discharges air from the internal flow path 1a to the window glass side of the vehicle interior, and the face vent 8 discharges air from the internal flow path 1a to the passenger's face.
- the floor vent (9) extends to the floor surface on the front seat side of the vehicle interior through floor ducts (9a), and the extended floor vent (9) supplies air on the internal flow path (1a) side. It is discharged to the floor area on the front seat side of the vehicle interior.
- the rear floor vent 10 extends to the rear seat side part of the vehicle interior through rear ducts 10a, and the rear floor vent 10 extended in this way is connected to the inner flow path 1a. The air is discharged to the floor area on the rear seat side of the vehicle interior.
- the PTC heater 5b is also used simultaneously, but in this case, there is a disadvantage that energy consumption increases rapidly.
- the PTC heater 5b has the disadvantage that it consumes a lot of electricity, and because of this disadvantage, there is a problem that the fuel efficiency of the vehicle is reduced.
- the floor vent 9 side has a long air discharge path to the front seat side floor portion
- the rear vent 9 side has a long air discharge path to the rear seat side floor portion.
- the floor vent (10) there is a disadvantage in that there is a lot of heat loss in the process of moving the air heated by the heating heat exchanger (5) to the floor area on the front and rear seats.
- the conventional air conditioner has a structure in which cold air that has passed through the heat exchange device (3) for cooling and warm air that has passed through the heat exchange device (5) for heating are mixed at the same time and discharged into the vehicle interior, so the discharge air temperature in the vehicle interior is
- the discharge air temperature in the vehicle interior is
- the discharged air temperature inside the vehicle interior is such that relatively low-temperature air is discharged to the upper part of the vehicle interior near the driver's head, and relatively high-temperature air is discharged to the lower interior of the vehicle interior near the driver's torso or legs, resulting in two Passengers inside the vehicle will feel comfortable only if the condition of the vehicle is maintained.
- the present invention was developed to solve the above-described conventional problems, and its purpose is to provide an air conditioning system for a vehicle that can effectively heat the interior of a vehicle while minimizing energy consumption in a heating mode.
- Another object of the present invention is to improve the fuel efficiency of a vehicle without reducing the comfort of the vehicle interior by effectively heating the vehicle interior while minimizing energy consumption.
- Another object of the present invention is to compensate for the heat loss of the air on the long air discharge path by configuring the air on the vent side transported along the long air discharge path to be efficiently heated with minimal energy. It is possible to prevent an increase in the heat output of the PTC electric heater, thereby minimizing energy consumption and more effectively heating the interior part of the vehicle with a long air discharge path.
- Another object of the present invention is to improve the effectiveness of heating for the interior part of the long air discharge path at the beginning of heating by configuring the air on the long air discharge path to be quickly heated with minimal energy. It is there.
- Another object of the present invention is to differentiate the discharged air temperature for the upper and lower sides of the vehicle interior by independently heating the temperature of the air discharged to the lower side of the vehicle interior.
- Another purpose of the present invention is to differentiate the discharge air temperature for the upper and lower sides of the vehicle interior, so that low-temperature air is discharged from the upper portion of the vehicle interior and high-temperature air is discharged from the lower portion of the interior of the vehicle interior. , it is possible to maintain the condition of the two and one foot heat, and through this, improve the comfort inside the car.
- an air conditioning device for a vehicle is an air conditioning device for a vehicle having an air inlet and an air outlet, including: a first heat exchanger for heating that heats air flowing into the air inlet; a second heating heat exchanger capable of heating air passing through or bypassing the first heating heat exchanger;
- the first and second heating heat exchange devices are controlled according to the heating load inside the vehicle, and when the heating load decreases below a preset size in a heating mode in which the first and second heating heat exchange devices are operated simultaneously, the first heating heat exchange device is controlled according to the heating load inside the vehicle. It is characterized by including a control unit that first turns off the heat exchange device and controls the heating mode to operate only the second heating heat exchange device.
- the first heating heat exchange device is characterized in that it is composed of a single number or a plurality of devices.
- the first heat exchanger for heating is characterized by including at least one of a heater core using engine coolant, an indoor heat exchanger using refrigerant of a heat pump, and a PTC heater using electricity.
- the first heating heat exchanger includes the indoor heat exchanger and the PTC heater;
- the control unit turns off the indoor heat exchanger among the first heating heat exchange devices, turns on the PTC heater, and turns on the second heating heat exchange device. ON) and turn the blower ON;
- the PTC heater of the first heating heat exchange device and the second heating heat exchange device are operated to heat the interior of the vehicle.
- the control unit turns on (ON) the interior heat exchanger of the first heating heat exchange device, the PTC heater, the second heating heat exchange device, and the blower. ) to do; Under the condition that the heating load inside the vehicle is more than the first standard heating load, the interior heat exchanger of the first heating heat exchange device, the PTC heater, and the second heating heat exchange device are all operated to heat the vehicle interior. .
- the control unit turns on the indoor heat exchanger of the first heat exchanger for heating. ), the PTC heater is turned off, and the second heating heat exchanger and the blower are turned on; Under the condition that the heating load inside the vehicle is less than the first reference heating load and above the second reference heating load, the interior heat exchanger of the first heating heat exchange device and the second heating heat exchange device are operated to heat the vehicle interior.
- a vehicle air conditioning system that uses
- control unit when the heating load inside the vehicle is less than the second standard heating load and is more than the third standard heating load set to be smaller than the second standard heating load, the indoor heat exchanger and the PTC heater of the first heat exchanger for heating Turn OFF, and turn ON the planar heating element and the blower of the second heating heat exchange device; Under the condition that the heating load inside the vehicle is less than the second standard heating load and higher than the third standard heating load, only the second heating heat exchanger operates and the heat is blown into the vehicle interior by the wind pressure of the blower to heat the interior of the vehicle. It is characterized by being able to do it.
- the control unit turns off all the interior heat exchanger, PTC heater, and blower of the first heating heat exchange device, and turns off only the second heating heat exchange device. Turn it on; Under the condition that the heating load inside the vehicle is less than the third standard heating load, only the second heating heat exchanger is operated and the radiant heat is transferred to the vehicle interior to perform radiant heating.
- the air conditioning device for a vehicle has an air inlet and an air outlet, comprising: a first heating heat exchanger for heating air flowing into the air inlet; a second heating heat exchanger capable of heating air passing through or bypassing the first heating heat exchanger;
- the first and second heating heat exchange devices are controlled according to the heating load inside the vehicle, and the second heating heat exchange device includes a control unit that is always turned on in a heating mode.
- the second heating heat exchange device is installed at the air outlet portion of the vent that discharges air toward the floor of the vehicle interior among the plurality of vents for discharging air into the vehicle interior.
- the second heating heat exchange device includes an air outlet of the front seat side floor vent that discharges air to the front seat side floor portion of the vehicle interior; It is characterized by being installed at each air outlet portion of the rear seat side rear floor vent that discharges air to the rear seat side floor portion of the vehicle interior.
- a second heating heat exchanger which is a planar heating element, is installed at the end of the air discharge path of the floor vent and the rear floor vent, so that the air discharged to the floor surface of the vehicle interior in the front and rear seats is directly discharged. Because it has a heating structure, it has the effect of efficiently heating the air on the floor vent and rear floor vent sides that are transported along the long air discharge path in the heating mode.
- the air on the floor vent and rear floor vent side can be heated efficiently, the interior floor of the front and rear seats that are relatively distant from the air conditioning case can be heated more quickly and effectively, and as a result, the , It has the effect of improving the comfort inside the vehicle by improving the quick effectiveness of heating on the floor surface of the vehicle interior in the front and rear seats.
- the structure uses a low-power, high-efficiency planar heating element to heat the discharged air on the floor of the front and rear seats, the air is transported along the long length to the floor of the front and rear seats even though it consumes little energy. It has the effect of heating to a high temperature.
- the temperature of the discharged air to the lower portion of the vehicle interior and the interior of the vehicle It has the effect of differentiating the discharge air temperature in the upper part.
- the temperature of the air discharged to the lower part of the cabin can be independently increased compared to the temperature of the air discharged to the upper part of the cabin. You can.
- FIG. 1 is a diagram showing a conventional vehicle air conditioning system
- FIG. 2 is a diagram showing the configuration of a vehicle air conditioning system according to the present invention.
- FIG. 3 is a plan view showing the vehicle air conditioning system according to the present invention being installed in a vehicle;
- FIGS 4 and 5 are flow charts showing operation examples of the vehicle air conditioning system according to the present invention.
- An air conditioning system for a vehicle includes an air conditioning case (1), and a heat exchange device (3) for cooling and a heat exchange device (5) for heating are installed in the air conditioning case (1).
- the cooling heat exchanger (3) cools the air blown into the vehicle interior along the internal passage (1a) of the air conditioning case (1)
- the heating heat exchanger (5) cools the air blowing into the vehicle interior along the internal passage (1a) of the air conditioning case (1). Accordingly, the air blown into the vehicle interior is heated.
- the heating heat exchanger 5 includes a heater core using engine coolant or an indoor heat exchanger 5a using refrigerant from a heat pump, and releases the introduced high-temperature engine coolant heat or refrigerant heat into the vehicle interior. Heats the blown air.
- the heating heat exchanger 5 further includes a PTC heater 5b installed on the downstream side of the heater core or indoor heat exchanger 5a.
- the PTC heater (5b) is used together with the heater core or the indoor heat exchanger (5a) or instead of the heater core or the indoor heat exchanger (5a) when the heat generation amount of the heater core or the indoor heat exchanger (5a) is insufficient. Heats the air blown into the room.
- the air conditioning case 1 is equipped with a plurality of air discharge ports for discharging the air from the internal flow path 1a into the vehicle interior.
- the air outlets include a defrost vent (7), a face vent (8), a floor vent (9), and a rear floor vent (10).
- the defrost vent 7 discharges air from the internal flow path 1a to the window glass side of the vehicle interior, and the face vent 8 discharges air from the internal flow path 1a to the passenger's face.
- the floor vent (9) extends through the floor ducts (9a) on both sides to the floor surface on the front seat side of the vehicle interior, and the floor vent (9) extended in this way allows the air on the internal flow passage (1a) side to enter the vehicle interior. It is discharged to the floor area on the front seat side.
- the rear floor vent (10) extends to the rear seat side part of the vehicle interior through the rear ducts (10a), and the rear floor vent (10) extended in this way allows air on the internal flow passage (1a) side to enter the vehicle interior. It is discharged to the bottom of the rear seat.
- the air conditioning device of the present invention includes, among the vents of the air conditioning case (1), vents that discharge air toward the floor inside the vehicle interior, for example, the floor vent (9) and the rear floor vent ( 10) are further provided with second heating heat exchange devices (20) respectively installed.
- the second heating heat exchange device 20 will be referred to as the “second heating heat exchange device 20”
- the heating heat exchange device 5 will be referred to as the “first heating heat exchange device 5.”
- the second heating heat exchanger 20 is composed of a porous planar heating element 22 capable of radiant heating, and among the parts of the floor vent 9 and the rear floor vent 10, the terminal part of the air discharge path, that is, , are installed on the air discharge ports (9b, 10b), respectively.
- the air outlet 10b-1 of the rear duct 10a extending to the left side of the rear seat and the air outlet 10b-1 of the rear duct 10a extending to the right of the rear seat Each is installed at (10b-2).
- this second heating heat exchange device 20 Since this second heating heat exchange device 20 is installed on the floor vent 9 and rear floor vent 10, it directly heats the air discharged to the floor surface of the vehicle interior of the front and rear seats.
- the second heating heat exchanger 20 heats the air just before being discharged to the floor of the vehicle interior of the front and rear seats, so that the air is transported along a long air discharge path to the floor of the vehicle interior of the front and rear seats.
- the air can be heated to a high temperature.
- the second heating heat exchanger (20) of the planar heating element (22) is capable of generating heat with low power and high efficiency, so it consumes little energy and heats the air transported along the long length to the floor of the vehicle interior at the front and rear seats at a high level. It can be heated to temperature.
- the front and rear seats of the vehicle interior can be heated more efficiently while minimizing energy consumption, and as a result, the comfort of the vehicle interior and the effect of reducing the vehicle's fuel efficiency can be achieved at the same time.
- the second heating heat exchanger (20) is installed on the floor vent (9) and rear floor vent (10) sides, it adjusts the temperature of the air discharged to the lower part of the vehicle interior among the front and rear seat portions of the vehicle interior. Can be controlled independently.
- the temperature of the air discharged to the bottom of the vehicle interior can be independently increased compared to the temperature of the air discharged to the upper side of the vehicle interior.
- the second heating heat exchange device 20 since the second heating heat exchange device 20 is installed on the floor vent 9 and the rear floor vent 10, it passes through the first heating heat exchange device 5 or passes through the first heating heat exchange device ( The air that bypassed 5) can be selectively heated.
- the air discharged into the vehicle interior can be heated together with the second heating heat exchange device (20), regardless of the second heating heat exchange device (20).
- the air discharged into the vehicle interior can also be heated.
- the air conditioning device of the present invention further includes second heating heat exchanger temperature sensors 30 that detect the temperatures of the second heating heat exchanger devices 20.
- the second heating heat exchange device temperature sensors 30 are installed on the downstream surface portion of each second heating heat exchange device 20, and the second heating heat exchange device temperature sensors 30 installed in this way are installed in each second heating heat exchange device 20. Sensing the temperature of the device 20.
- the temperature of the second heating heat exchanger (20) installed on the air outlet (9b) side of the floor vent (9) and the air outlet (10b) side of the rear floor vent (10) is detected, respectively, and the sensed temperature Data is input to the control unit 40, which will be described later.
- the air conditioning device of the present invention further includes a control unit 40.
- the control unit 40 is equipped with a microprocessor and controls the first and second heating heat exchange devices 5 and 20 according to the heating load inside the vehicle interior.
- control unit 40 controls ON and OFF of the first and second heating heat exchange devices 5 and 20 according to the heating load in the vehicle interior.
- the indoor heat exchanger (5a) of the first heating heat exchanger (5) is turned off.
- OFF compressor of the heat pump air conditioning device is turned off
- the PTC heater (5b) is turned on
- the planar heating element 22 of the second heating heat exchange device 20 is turned on.
- the control unit 40 turns on the blower 50.
- the interior of the vehicle can be heated while only the PTC heater 5b of the first heating heat exchange device 5 and the planar heating element 22 of the second heating heat exchange device 20 are operated. let it be
- the reference temperature built into the control unit 40 is set to a specific sub-zero temperature.
- the reference temperature is set to -20°C, which is a specific sub-zero temperature, at which the heat pump air conditioning device cannot operate.
- the reference temperature is set to a specific sub-zero temperature (-20°C), and the indoor heat exchanger 5a is turned off under the indoor heating load condition where the outside temperature is below the specific sub-zero temperature (-20°C). This is because, as above, the heat pump air conditioning device cannot operate under conditions where the outside temperature is -20°C or lower.
- the control unit 40 sets the discharge air temperature in the vehicle interior, outside air temperature, inside temperature, and user settings. Calculate the heating load inside the vehicle using factors such as temperature and target discharge temperature, and control the ON and OFF of the first and second heating heat exchange devices 5 and 20 according to the calculated heating load inside the vehicle. It is configured to do so.
- control unit 40 monitors the discharge air temperature sensors 42, the external air temperature sensor 44, and the internal temperature installed on the air outlet side of each vent (7, 8, 9, 10). Information on factors affecting the heating load in the vehicle interior is obtained through the sensing values input from the sensor 46 and the user-set temperature input from the controller 48.
- the vehicle interior discharge air temperature, outside air temperature, internal temperature, user-set temperature, and target discharge temperature are acquired.
- At least one of the obtained vehicle interior discharge air temperature, outside air temperature, internal temperature, user-set temperature, and target discharge temperature is processed using preset logic to calculate the heating load inside the vehicle interior, and the size of the calculated heating load. It is configured to control the ON and OFF of the first and second heating heat exchange devices 5 and 20 according to.
- the calculated heating load is compared with the size of the pre-built standard heating load, and the ON and OFF of the first and second heating heat exchange devices 5 and 20 are controlled according to the results. It is composed.
- control unit 40 operates the first heating heat exchange device 5 under the condition that the calculated heating load inside the vehicle is more than the pre-built first standard heating load, as shown in [Table 1] above.
- the indoor heat exchanger (5a) is turned on (the compressor of the heat pump air conditioning device is turned on), the PTC heater (5b) is also turned on, and the planar heating element (22) and blower of the second heating heat exchanger (20) are turned on. (50) is also turned on.
- the interior heat exchanger (5a) and PTC heater (5b) of the first heating heat exchange device (5) and the planar heating element of the second heating heat exchange device (20) (22) all operate to heat the vehicle interior.
- control unit 40 operates under the condition that the calculated heating load inside the vehicle is less than the first reference heating load and is more than the second reference heating load set to be smaller than the first reference heating load.
- the indoor heat exchanger (5a) of the first heating heat exchange device (5) is turned on
- the PTC heater (5b) is turned off
- the planar heating element (22) of the second heating heat exchange device (20) is turned on.
- the blower 50 are turned ON.
- the plane surface of the interior heat exchanger (5a) of the first heat exchanger for heating (5) and the second heat exchanger for heating (20) The interior of the vehicle can be heated while only the heating element 22 is operated.
- the operation of the PTC heater 5b which consumes a lot of power, can be limited, and through this, in the heating mode, energy consumption can be minimized and the interior of the vehicle can be effectively heated.
- control unit 40 operates under the condition that the calculated heating load inside the vehicle is less than the second standard heating load and is greater than the third standard heating load set to be smaller than the second standard heating load.
- both the indoor heat exchanger (5a) and the PTC heater (5b) of the first heating heat exchanger (5) are turned off, and only the planar heating element (22) of the second heating heat exchanger (20) is turned on. I order it.
- the control unit 40 turns on the blower 50.
- control unit 40 operates the interior heat exchanger 5a of the first heating heat exchange device 5 under the condition that the calculated heating load inside the vehicle is less than the third standard heating load. Both the and PTC heaters 5b are turned off, and only the planar heating element 22 of the second heating heat exchanger 20 is turned on. At this time, the control unit 40 turns off the blower 50.
- control unit 40 by controlling the ON and OFF of the first and second heating heat exchange devices 5 and 20 according to the heating load inside the vehicle, in the heating mode inside the vehicle, energy It can minimize consumption and effectively heat the car interior.
- the indoor heat exchanger of the first heating heat exchange device 5 which has relatively high energy consumption ( 5a) and the PTC heater 5b have a structure that variably controls ON and OFF depending on the heating load inside the vehicle interior.
- the heating mode energy consumption can be minimized and the interior of the vehicle can be heated more effectively, and as a result, the fuel efficiency of the vehicle can be improved without deteriorating the comfort of the vehicle interior.
- the control unit 40 radiates the interior of the vehicle while the blower 50 is not operated and only the planar heating element 22 of the second heating heat exchange device 20 is turned on.
- the second heating heat exchange device 20 is controlled using the sensing value of the second heating heat exchange device temperature sensor 30 that detects the temperature of the second heating heat exchange device 20.
- control unit 40 uses the sensing values of the discharge air temperature sensors 42 installed on the air discharge port side of each vent 7, 8, 9, and 10. It is configured to control the first and second heating heat exchange devices (5, 20).
- the first heating heat exchanger 5 includes an indoor heat exchanger 5a and a PTC heater 5b will be described as an example.
- the control unit 40 determines whether the outside temperature is below a preset reference temperature (S103). For example, determine whether the outside temperature is -20°C or lower.
- the control unit 40 recognizes that the indoor heat exchanger 5a of the heat pump is currently impossible to operate, and according to this recognition, the first heating heat exchanger 5 is operated.
- the indoor heat exchanger 5a is turned off (the compressor of the heat pump air conditioner is turned off), the PTC heater 5b is turned on, and the planar heating element 22 of the second heating heat exchanger 20 is turned on. (ON) and the blower (50) is turned on (S105).
- the PTC heater 5b of the first heating heat exchange device 5 and the planar heating element 22 of the second heating heat exchange device 20 operate to heat the vehicle interior.
- the control unit 40 determines at least one of the discharge air temperature inside the vehicle, outside temperature, internal temperature, user-set temperature, and target discharge temperature. Using one factor, the heating load inside the vehicle is calculated (S107).
- control unit 40 determines whether the calculated heating load inside the vehicle is greater than or equal to the first standard heating load built in advance (S109).
- the control unit 40 turns on the indoor heat exchanger 5a and the PTC heater 5b of the first heating heat exchanger 5 and turns on the second heating heat exchanger.
- the planar heating element 22 of the device 20 is turned on, and the blower 50 is turned on (S110).
- the interior heat exchanger (5a) and PTC heater (5b) of the first heating heat exchange device (5) and the planar heating element (22) of the second heating heat exchange device (20) are all operated to heat the interior of the vehicle.
- step (S109) if the heating load inside the vehicle is not more than the first standard heating load (S109-1), the control unit 40 determines that the heating load inside the vehicle is less than the first standard heating load. , it is determined again whether it is more than the second standard heating load, which is set to be smaller than the first standard heating load (S111).
- the control unit 40 turns on the indoor heat exchanger 5a of the first heat exchanger 5 for heating, and turns on the PTC heater. (5b) is turned OFF, the planar heating element 22 of the second heating heat exchange device 20 is turned ON, and the blower 50 is turned ON (S113).
- step (S111) if the heating load inside the vehicle is less than the first standard heating load and is not more than the second standard heating load (S111-1), the control unit 40 determines the heating load inside the vehicle as described above. It is determined again whether it is less than the second standard heating load and greater than the third standard heating load set to be smaller than the second standard heating load (S115).
- control unit 40 turns off both the indoor heat exchanger 5a and the PTC heater 5b of the first heating heat exchanger 5 ( OFF), and the planar heating element 22 and blower 50 of the second heating heat exchange device 20 are turned ON.
- planar heating element 22 of the second heating heat exchange device 20 operates, and the heat generated by the planar heating element 22 is blown into the vehicle interior by the wind pressure of the blower 50, thereby heating the interior of the vehicle.
- step (S115) if the heating load inside the vehicle is less than the second standard heating load and is not more than the third standard heating load (S115-1), the control unit 40 determines the heating load inside the vehicle as described above. Re-determine whether it is less than the third standard heating load (S119).
- the control unit 40 turns off the indoor heat exchanger 5a, the PTC heater 5b, and the blower 50 of the first heating heat exchanger 5 ( OFF), and only the planar heating element 22 of the second heating heat exchange device 20 is turned on (S121).
- planar heating element 22 of the second heating heat exchanger 20 operates, and the heat generated from the planar heating element 22 radiates and heats the inside of the vehicle interior.
- the second heating heat exchanger 20 which is a planar heating element 22, is installed at the end portion of the air discharge path of the floor vent 9 and the rear floor vent 10. , It is a structure that directly heats the air discharged to the interior floor of the front and rear seats.
- the air on the floor vent 9 and rear floor vent 10 sides which is transported along the long air discharge path, can be heated efficiently.
- the structure uses a low-power, high-efficiency planar heating element (22) to heat the discharge air on the floor of the front and rear seats, it consumes little energy and extends the long distance to the floor of the front and rear seats.
- the air being transported can be heated to a high temperature.
- the temperature of the air discharged to the lower part of the cabin can be independently increased compared to the temperature of the air discharged to the upper part of the cabin. You can.
- the first heating heat exchanger 5 is described as being composed of a heater core or indoor heat exchanger 5a and a PTC heater 5b, but the heater core , an indoor heat exchanger, or a PTC heater may be configured as a single number.
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Abstract
Description
| 난방부하 난방용 열교환기 |
큼 <-----------------------------------------> 작음 | |||||
| 히트펌프 작동불가 | 히트펌프 작동가능 | |||||
| 외기온도 ≤ 기준온도 |
차실내 난방부하 ≥ 제1기준 난방부하 |
제1기준 난방부하 > 차실내 난방부하 ≥ 제2기준 난방부하 |
제2기준 난방부하 > 차실내 난방부하 ≥ 제3기준 난방부하 |
제3기준 난방부하 > 차실내 난방부하 |
||
| 제 1난방용 열교환장치 | 실내열교환기 (히트펌프) |
× | ○ | ○ | × | × |
| PTC 히터 | ○ | ○ | × | × | × | |
| 제 2난방용 열교환장치 | 면상발열체 | ○ | ○ | ○ | ○ | ○ |
| 블로어 | ○ | ○ | ○ | ○ | × | |
Claims (17)
- 공기유입구와 공기토출구를 갖는 차량용 공조장치에 있어서,상기 공기유입구로 유입된 공기를 가열하는 제 1난방용 열교환장치와;상기 제 1난방용 열교환장치를 통과하거나, 또는 바이패스한 공기를 가열할 수 있는 제 2난방용 열교환장치 및;차실내 난방부하에 따라 상기 제 1 및 제 2난방용 열교환장치를 제어하되, 상기 제 1 및 제 2난방용 열교환장치가 동시에 구동하는 난방모드에서 난방부하가 미리 설정된 크기 미만으로 감소하면, 상기 제 1난방용 열교환장치를 먼저 오프(OFF)하고 상기 제 2난방용 열교환장치만 구동하는 난방모드로 제어하는 제어부를 포함하는 것을 특징으로 하는 차량용 공조장치.
- 제 1항에 있어서,상기 제 1난방용 열교환장치는,단일의 개수 또는 복수개로 구성되는 것을 특징으로 하는 차량용 공조장치.
- 제 2항에 있어서,상기 제 1난방용 열교환장치는,엔진냉각수를 이용하는 히터코어, 히트펌프(Heat Pump)의 냉매를 이용하는 실내열교환기, 전기를 이용하는 PTC 히터 중 적어도 어느 하나 이상을 포함하는 것을 특징으로 하는 차량용 공조장치.
- 제 3항에 있어서,상기 제 1난방용 열교환장치는, 상기 실내열교환기와 PTC 히터를 포함하며;상기 제어부는,외기온도가 미리 설정된 기준온도 이하일 시에는 상기 제 1난방용 열교환장치 중 상기 실내열교환기는 오프(OFF)시키고, 상기 PTC 히터는 온(ON)시키며, 상기 제 2난방용 열교환장치는 온(ON)시키고, 블로어를 온(ON)시켜;상기 제 1난방용 열교환장치의 PTC 히터와, 제 2난방용 열교환장치가 작동되면서 차실내를 난방할 수 있게 하는 것을 특징으로 하는 차량용 공조장치.
- 제 4항에 있어서,상기 제어부는,차실내 난방부하가 미리 내장된 제 1기준난방부하 이상일 시에는, 상기 제 1난방용 열교환장치의 실내열교환기와 PTC 히터와 상기 제 2난방용 열교환장치 및, 상기 블로어를 모두 온(ON)시켜;차실내 난방부하가 상기 제 1기준난방부하 이상인 조건하에서는, 상기 제 1난방용 열교환장치의 실내열교환기와 PTC 히터 및, 제 2난방용 열교환장치가 모두 작동되면서 차실내를 난방할 수 있게 하는 것을 특징으로 하는 차량용 공조장치.
- 제 5항에 있어서,상기 제어부는,차실내 난방부하가 상기 제 1기준난방부하 미만이고, 상기 제1기준난방부하보다 작게 설정된 제 2기준난방부하 이상일 시에는, 상기 제 1난방용 열교환장치의 실내열교환기를 온(ON)시키고, 상기 PTC 히터는 오프(OFF)시키며, 상기 제 2난방용 열교환장치와 상기 블로어를 온(ON)시켜;차실내 난방부하가 상기 제 1기준난방부하 미만이고 제 2기준난방부하 이상인 조건하에서는, 제 1난방용 열교환장치의 실내열교환기와, 제 2난방용 열교환장치가 작동되면서 차실내를 난방할 수 있게 하는 것을 특징으로 하는 차량용 공조장치.
- 제 6항에 있어서,상기 제어부는,차실내 난방부하가 상기 제 2기준난방부하 미만이고, 상기 제2기준난방부하보다 작게 설정된 제 3기준난방부하 이상일 시에, 상기 제 1난방용 열교환장치의 실내열교환기와 PTC 히터는 오프(OFF)시키며, 상기 제 2난방용 열교환장치의 면상발열체와 상기 블로어는 온(ON)시켜;차실내 난방부하가 상기 제 2기준난방부하 미만이고 제 3기준난방부하 이상인 조건하에서는, 상기 제 2난방용 열교환장치만이 작동되면서 그 열이 상기 블로어의 풍압에 의해 차실내로 송풍되면서 차실내를 난방할 수 있게 하는 것을 특징으로 하는 차량용 공조장치.
- 제 7항에 있어서,상기 제어부는,차실내 난방부하가 상기 제 3기준난방부하 미만일 시에는, 상기 제 1난방용 열교환장치의 실내열교환기와 PTC 히터와 상기 블로어는 모두 오프(OFF)시키며, 상기 제 2난방용 열교환장치만 온(ON)시켜;차실내 난방부하가 제 3기준난방부하 미만인 조건하에서는, 상기 제 2난방용 열교환장치만이 작동되면서 그 복사열이 차실내로 전달되어 복사 난방할 수 있게 하는 것을 특징으로 하는 차량용 공조장치.
- 제 8항에 있어서,제 1 내지 제 3기준난방부하는,히트펌프 공조장치의 작동이 가능한 외기온도조건하에서 설정되는 것을 특징으로 하는 차량용 공조장치.
- 제 4항에 있어서,상기 제어부는,히트펌프 공조장치의 작동이 불가능한 특정 외기온도를 기준온도로 내장하고 있고,외기온도가 히트펌프 공조장치의 작동이 불가능한 상기 기준온도 이하일 시에, 상기 실내열교환기는 오프(OFF)시키고, 상기 PTC 히터는 온(ON)시키며, 상기 제 2난방용 열교환장치와 블로어를 온(ON)시키는 것을 특징으로 하는 차량용 공조장치.
- 공기유입구와 공기토출구를 갖는 차량용 공조장치에 있어서,상기 공기유입구로 유입된 공기를 가열하는 제 1난방용 열교환장치와;상기 제 1난방용 열교환장치를 통과하거나, 또는 바이패스한 공기를 가열할 수 있는 제 2난방용 열교환장치 및;차실내 난방부하에 따라 상기 제 1 및 제 2난방용 열교환장치를 제어하되, 상기 제 2난방용 열교환장치는, 난방모드 시에 상시 온(ON)시키는 제어부를 포함하는 것을 특징으로 하는 차량용 공조장치.
- 제 11항에 있어서,상기 제 2난방용 열교환장치는,공기를 차실내로 토출하기 위한 다수의 벤트들 중, 차실내의 바닥면측으로 공기를 토출하는 벤트의 공기토출구부분에 설치되는 것을 특징으로 하는 차량용 공조장치.
- 제 12항에 있어서,상기 제 2난방용 열교환장치는,차실내의 전석측 바닥면부분으로 공기를 토출하는 전석측 플로어 벤트의 공기토출구와;차실내의 후석측 바닥면부분으로 공기를 토출하는 후석측 리어 플로어 벤트의 공기토출구부분에 각각 설치되는 것을 특징으로 하는 차량용 공조장치.
- 제 11항에 있어서,차실내의 각 공기토출구들에 설치되는 토출공기온 센서와, 상기 제 2난방용 열교환장치의 온도를 감지하는 제 2난방용 열교환장치 온도센서를 더 포함하는 것을 특징으로 하는 차량용 공조장치.
- 제 14항에 있어서,상기 제어부는,블로어가 작동되는 난방모드에서는, 각 공기토출구측에 설치되는 상기 토출공기온 센서들의 센싱값을 가지고 상기 제 1 및 제 2난방용 열교환장치를 제어하고;블로어가 작동되지 않고 상기 제 2난방용 열교환장치상발열체만 작동되는 난방모드에서는, 상기 제 2난방용 열교환장치 온도센서의 센싱값을 가지고 상기 제 2난방용 열교환장치를 제어하는 것을 특징으로 하는 차량용 공조장치.
- 제 11항에 있어서,상기 제 2난방용 열교환장치는,복사 난방이 가능한 다공성 면상발열체인 것을 특징으로 하는 차량용 공조장치.
- 제 11항에 있어서,상기 제어부는,차실내 토출공기온도, 외기온도, 내기온도, 사용자 설정온도, 목표토출온도들 중 적어도 어느 하나를 미리 설정된 로직으로 처리하여, 차실내의 난방부하를 산출하는 것을 특징으로 하는 차량용 공조장치.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202380024361.7A CN118786038A (zh) | 2022-04-12 | 2023-04-11 | 车用空调装置 |
| US18/725,162 US20250074161A1 (en) | 2022-04-12 | 2023-04-11 | Vehicular air conditioning system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020220044924A KR102866215B1 (ko) | 2022-04-12 | 2022-04-12 | 차량용 공조장치 |
| KR10-2022-0044924 | 2022-04-12 |
Publications (1)
| Publication Number | Publication Date |
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| WO2023200211A1 true WO2023200211A1 (ko) | 2023-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/KR2023/004838 Ceased WO2023200211A1 (ko) | 2022-04-12 | 2023-04-11 | 차량용 공조장치 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250074161A1 (ko) |
| KR (1) | KR102866215B1 (ko) |
| CN (1) | CN118786038A (ko) |
| WO (1) | WO2023200211A1 (ko) |
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| JP4661011B2 (ja) * | 2001-09-10 | 2011-03-30 | 株式会社デンソー | 車両用空調装置 |
| KR102808244B1 (ko) * | 2020-04-14 | 2025-05-20 | 한온시스템 주식회사 | 발열유닛 및 이를 포함하는 차량용 난방장치 |
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2022
- 2022-04-12 KR KR1020220044924A patent/KR102866215B1/ko active Active
-
2023
- 2023-04-11 CN CN202380024361.7A patent/CN118786038A/zh active Pending
- 2023-04-11 WO PCT/KR2023/004838 patent/WO2023200211A1/ko not_active Ceased
- 2023-04-11 US US18/725,162 patent/US20250074161A1/en active Pending
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| US6002105A (en) * | 1996-12-02 | 1999-12-14 | Zexel Corporation | Air conditioning control apparatus for vehicles |
| JPH10203141A (ja) * | 1997-01-24 | 1998-08-04 | Denso Corp | 車両用暖房装置 |
| KR20110090478A (ko) * | 2010-02-04 | 2011-08-10 | 한라공조주식회사 | 차량용 공조장치 |
| KR20120053138A (ko) * | 2010-11-17 | 2012-05-25 | 현대자동차주식회사 | 냉각수 폐열을 이용하는 연료전지 자동차의 난방 제어 방법 |
| JP2020185962A (ja) * | 2019-05-17 | 2020-11-19 | サンデン・オートモーティブクライメイトシステム株式会社 | 車両用空気調和装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102866215B1 (ko) | 2025-09-29 |
| KR20230146222A (ko) | 2023-10-19 |
| US20250074161A1 (en) | 2025-03-06 |
| CN118786038A (zh) | 2024-10-15 |
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