KR102037245B1 - Air conditioning system for automotive vehicles - Google Patents

Air conditioning system for automotive vehicles Download PDF

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Publication number
KR102037245B1
KR102037245B1 KR1020130100487A KR20130100487A KR102037245B1 KR 102037245 B1 KR102037245 B1 KR 102037245B1 KR 1020130100487 A KR1020130100487 A KR 1020130100487A KR 20130100487 A KR20130100487 A KR 20130100487A KR 102037245 B1 KR102037245 B1 KR 102037245B1
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KR
South Korea
Prior art keywords
vehicle
interior
outside
air inlet
temperature
Prior art date
Application number
KR1020130100487A
Other languages
Korean (ko)
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KR20150022504A (en
Inventor
김동현
정홍희
Original Assignee
한온시스템 주식회사
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Priority to KR1020130100487A priority Critical patent/KR102037245B1/en
Publication of KR20150022504A publication Critical patent/KR20150022504A/en
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Publication of KR102037245B1 publication Critical patent/KR102037245B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00821—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—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
    • B60H1/00742—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 by detection of the vehicle occupants' presence; by detection of conditions relating to the body of occupants, e.g. using radiant heat detectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—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
    • B60H1/00764—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 vehicle driving condition, e.g. speed
    • B60H1/00778—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 vehicle driving condition, e.g. speed the input being a stationary vehicle position, e.g. parking or stopping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—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
    • B60H1/008—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 air quality
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/70—Carbon dioxide

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The present invention relates to a vehicle air conditioner, by opening the outside air inlet for ventilation in the interior of the vehicle at the start-off of the vehicle, by actively controlling the amount of opening of the outdoor air inlet in accordance with conditions outside the interior of the vehicle When the vehicle is turned off, an object of the present invention is to prevent excessive inflow of air and consequently a sudden temperature change in the cabin.
In order to achieve the above object, the present invention, in the vehicle air conditioner including an intake door (Intake Door) for controlling the opening amount of the outdoor airway entrance and the internal airway entrance while rotating between the outdoor airway entrance and the internal airway entrance, And a control unit for controlling the intake door so that the outdoor airway entrance can be opened when the start of the vehicle is turned off. The control unit differentially controls the opening amount of the outdoor airway entrance according to whether the user rides in the cabin. The opening angle of the intake door may be controlled differently according to whether the user rides in the vehicle.

Description

Air Conditioning System for Vehicles {AIR CONDITIONING SYSTEM FOR AUTOMOTIVE VEHICLES}

The present invention relates to a vehicle air conditioner, and more particularly, the open air inlet opening for ventilation in the vehicle interior when the vehicle is turned off, the opening amount of the outdoor air inlet opening according to the conditions of the interior and exterior of the vehicle The present invention relates to a vehicle air conditioner that can prevent excessive inflow of air and consequently a sudden change in temperature in a vehicle when the vehicle is turned off.

An air conditioner is installed in a car to cool and heat a cabin.

As shown in FIG. 1, the air conditioning apparatus includes an air conditioning case 10, and the air conditioning case 10 is formed with an outdoor air inlet 12 and an internal air inlet 14.

The outdoor air inlet 12 communicates with the outside of the vehicle, and introduces air from the outside of the vehicle into the air conditioning case 10. The airway inlet 14 communicates with the interior of the vehicle and introduces air in the vehicle interior.

The air conditioner includes an intake door 20 provided between the outside air inlet 12 and the inside air inlet 14.

The intake door 20 rotates between the outside air mode position A for blocking the inside airway inlet 14 and the inside air mode position B for blocking the airway inlet 12.

The intake door 20 selectively opens the outside air inlet 12 or the inside air inlet 14 while rotating between the outside air mode position A and the inside air mode position B. FIG. Thus, the air or bet can be selectively introduced.

On the other hand, when the start of the vehicle is turned off, such an intake door 20 memorizes the position state when the start is turned off, and when the start of the vehicle is turned on again. And to retain the stored position state. Therefore, when the vehicle is started up, the vehicle is configured to reproduce the position state before the startup is off.

By the way, in the conventional air conditioner, when the start of the vehicle is turned off (OFF) in the state in which the outdoor air inlet 12 is opened during the operation of the air conditioner, the external hot air through the open outdoor air inlet 12 There is a drawback that is introduced into the interior of the vehicle, the drawback has been pointed out that the cooling efficiency of the interior is rapidly reduced due to this disadvantage.

In particular, when the vehicle is turned off for only a short time to temporarily stop the vehicle, for example, when the vehicle is only turned off for a while at a highway rest area, a gas station, etc. In this state, there is a problem that the external hot air is introduced into the interior of the vehicle interior through the open air inlet 12, thereby rapidly increasing the temperature in the interior of the vehicle interior.

In addition, when the outdoor air inlet 12 is open, the intake door 20 is kept open even when the vehicle is turned on, and the outdoor air inlet 12 is open. When the vehicle is turned on (ON), there is a disadvantage that a large amount of external hot air flows into the vehicle interior through the open air inlet 12.

In addition, there is a problem that the temperature in the interior of the vehicle is rapidly changed due to these disadvantages, and the drawback is that the comfort in the interior of the vehicle is significantly reduced due to this problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object thereof is that, when the vehicle is turned off, the position of the intake door can be actively controlled in accordance with a condition outside the vehicle interior. It is an object of the present invention to provide a vehicle air conditioner that can actively control an introduction amount of outside air in accordance with conditions inside and outside a vehicle at the time of starting of the vehicle (OFF).

Another object of the present invention is to configure the amount of external air to be actively controlled in accordance with conditions in and out of the vehicle at the time of starting of the vehicle. In addition, the present invention provides a vehicle air conditioner that can prevent a sudden change in temperature in the vehicle.

Another object of the present invention is to configure the temperature in the cabin to be related to the start-off of the vehicle by configuring the vehicle so as to prevent excessive inflow of air and thereby sudden temperature change in the interior of the vehicle. The present invention provides a vehicle air conditioner that can be comfortably maintained at all times.

Another object of the present invention is to configure the vehicle to actively control the introduction amount of the outside air in accordance with the conditions inside and outside the vehicle at the time of starting the vehicle (OFF), thereby temporarily turning off the vehicle's starting, The present invention provides an air conditioner for a vehicle that enables the amount of introduction of outside air to be actively controlled according to conditions inside and outside the vehicle, even when it is turned on immediately.

Still another object of the present invention is to configure the amount of fresh air to be actively controlled according to the conditions inside and outside the vehicle, even when the vehicle is temporarily turned off and then immediately turned on again. The present invention provides a vehicle air conditioner that can prevent a sudden change in temperature due to excessive inflow of air when the vehicle is temporarily turned off, thereby improving comfort inside the vehicle.

In order to achieve the above object, the air conditioner for a vehicle according to the present invention includes an intake door for controlling the opening amount of the outside airway entrance and the inside airway entrance while being rotated between the outside airway entrance and the inside airway entrance. A vehicle air conditioner, comprising: a control unit for controlling the intake door to open the outside air inlet when the vehicle is turned off, and the control unit is controlled according to whether the user boards the vehicle. The opening angle of the intake door may be controlled differently according to whether the user rides in the cabin so that the opening amount of the outside air inlet may be differentially controlled.

Preferably, the control unit, when the vehicle is turned off, when the user is not in the cabin, the intake door to the first position between the outside airway entrance and the internal airway entrance When the user is in the vehicle interior, the opening angle of the intake door is differentially controlled in consideration of temperature conditions inside and outside the vehicle interior.

The control unit is further configured to turn the intake door into the outside air inlet and the internal air inlet when the temperature outside the vehicle interior is lower than the vehicle interior temperature when the vehicle is turned off and the user is in the vehicle interior. When the temperature of the outside of the vehicle is higher than the temperature of the vehicle, the opening angle of the intake door is differentially controlled in consideration of the concentration of carbon dioxide in the vehicle.

According to the vehicle air conditioner according to the present invention, since the opening amount of the intake door is actively controlled at the time of starting the vehicle off and according to the conditions inside and outside the vehicle, the vehicle at the time of starting the vehicle off, According to the indoor and outdoor conditions, there is an effect of actively controlling the introduction amount of the outside air.

In addition, when the vehicle is turned off, the amount of fresh air can be actively controlled in accordance with conditions in and out of the vehicle, and thus, when the vehicle is turned off, excessive inflow of air and the sudden It is effective to prevent temperature changes.

In addition, when the vehicle is turned off, it is possible to prevent excessive inflow of air and consequent sudden changes in temperature in the cabin, so that the temperature inside the cabin can always be kept comfortable regardless of the vehicle's startup. It can be effective.

In addition, when the vehicle is turned off, the amount of fresh air can be actively controlled in accordance with conditions inside and outside the vehicle. Therefore, the vehicle is temporarily turned off and immediately turned on again. Even when it is made, there is an effect that the introduction amount of the outside air can be actively controlled in accordance with the conditions inside and outside the vehicle.

In addition, even when the vehicle is temporarily turned off and immediately turned on again, the amount of fresh air can be actively controlled according to the conditions inside and outside the vehicle, so that the vehicle is temporarily turned off. When turned OFF), it is possible to prevent a sudden temperature change in the vehicle interior due to excessive inflow of air, thereby improving the comfort in the vehicle interior.

1 is a view showing the configuration of a conventional vehicle air conditioner,
2 is a view showing the configuration of a vehicle air conditioner according to the present invention;
3 is a flowchart showing an operation example of the vehicle air conditioner according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a vehicle air conditioner according to the present invention will be described in detail with reference to the accompanying drawings.

First, before looking at the features of the vehicle air conditioner according to the present invention, a brief description of the vehicle air conditioner with reference to FIG.

The air conditioning apparatus includes an air conditioning case 10, and the air conditioning case 10 is formed with an outdoor air inlet 12 and an internal air inlet 14.

The outdoor airway inlet 12 introduces air outside the vehicle interior into the air conditioning case 10, and the airway inlet 14 introduces air in the vehicle interior.

The air conditioner includes an intake door 20 provided between the outside air inlet 12 and the inside air inlet 14.

The intake door 20 rotates between the outside air mode position A and the inside air mode position B, and selectively opens the outside air inlet 12 or the inside air inlet 14. Thus, the air or bet can be selectively introduced.

Next, the features of the vehicle air conditioner according to the present invention will be described in detail with reference to FIG.

First, the air conditioning apparatus of the present invention includes a start-off detecting means 30 for detecting starting of a vehicle.

The start-off detecting means 30 includes a start switch (not shown) of the vehicle.

The start switch outputs a "start OFF signal S1" when the driver turns off the vehicle. The start switch outputs the vehicle via the "start OFF signal S1" output. It is possible to detect whether the start of the vehicle is OFF.

And the air conditioning apparatus of the present invention is provided with a user boarding detection means 32 for detecting whether or not the user is in the cabin.

The user boarding detection means 32 includes a pressure sensor (not shown) installed in each seat in the vehicle cabin.

The pressure sensor detects a user's weight when the user is seated in a cabin, detects the user's weight according to the user's weight, and detects a user's boarding signal. S2) "is input to the control part 40 mentioned later.

In some cases, the user boarding detection means 32 may be configured as an infrared sensor installed in the vehicle cabin.

The infrared sensor detects whether the user is in the vehicle by detecting the body temperature of the user when the user is in the vehicle.

Referring back to FIG. 2, the air conditioner of the present invention includes an interior / exterior temperature sensing means 34 for sensing a temperature inside and outside a vehicle, and a carbon dioxide concentration sensing means 36 for sensing a concentration of carbon dioxide in a vehicle interior. .

Interior and exterior temperature sensing means 34 is composed of a temperature sensor for sensing the temperature in the interior and the interior of the interior of the vehicle, respectively, and after sensing the temperature in the interior and the interior of the interior of the vehicle, respectively, and then detected the temperature of the interior and exterior To the control unit 40 to be described later.

Carbon dioxide concentration detecting means 36 is composed of a gas sensor installed in the vehicle, detects the carbon dioxide concentration in the vehicle, and then inputs the detected carbon dioxide concentration data in the control unit 40 to be described later.

2, the air conditioner of this invention is equipped with the control part 40. As shown in FIG.

The control unit 40 is equipped with a microprocessor, and a "user boarding signal" from the user boarding detection unit 32 in a state where the "starting OFF signal S1" is input from the start-off detecting means 30. (S2) "is inputted.

As a result of the determination, if the "user boarding signal S2" is not input, since there are no passengers in the vehicle interior, it is determined that only the minimum ventilation is required to introduce outside air to ventilate the interior of the vehicle.

When the determination is made, the control unit 40 enters the "first mode", and the control unit 40 entering the "first mode" moves the intake door 20 to the outside air inlet 12 and the bet. Control to the "first position C" between the inlets 14. Therefore, the outside air inlet 12 is opened in a small amount. This allows the introduction of outside air to some extent. As a result, ventilation in the cabin can be made within a minimum range.

Preferably, the "first position C" of the intake door 20 is a position when the opening amount of the open air inlet 12 with respect to the inside air inlet 14 is 20%.

Therefore, when the user does not board the vehicle in the state that the vehicle is turned off, the opening degree of the outdoor air inlet 12 is opened by about 20%, and thus the outdoor air inlet opened by about 20% is thus opened. Through 12), a small amount of fresh air is introduced into the cabin to ventilate the cabin.

Referring again to FIG. 2, the controller 40 is configured to receive a "user boarding" from the user boarding detection means 32 in a state in which a "starting OFF signal S1" is input from the start-off detecting means 30. When the signal "S2" is input, the user is in the interior of the cabin, so it is necessary to ventilate the interior by introducing the outside air, but if a large amount of outside air flows in, there is a concern that a temperature change in the interior of the cabin will occur. It is configured to consider that the temperature conditions of the interior and exterior of the vehicle.

According to the above-described configuration, the control unit 40 compares the temperature in the vehicle interior input from the vehicle interior and exterior temperature sensing means 34 with the temperature of the vehicle exterior and compares the magnitude thereof.

As a result of the comparison, if the temperature inside the vehicle room is higher than the temperature outside the vehicle room, that is, if the temperature outside the vehicle room is lower than the temperature inside the vehicle room, the temperature outside the vehicle room is low. Judging from the deepening.

When the determination is made, the control unit 40 enters the "second mode", and the control unit 40 entering the "second mode" moves the intake door 20 to the outside air inlet 12 and the bet. Control to the "second position D" between the inlets 14. In particular, it controls in the direction which opens the outside air inlet 12 more than "the 1st position C". Thus, the open air inlet 12 is opened more than in the "first mode". This allows the introduction of large amounts of outside air. As a result, the ventilation in the vehicle interior can be made sufficiently.

Preferably, the "second position D" of the intake door 20 is a position when the opening amount of the open air inlet 12 with respect to the inside air inlet 14 is 50%.

Therefore, when the user is in the vehicle interior while the vehicle is turned off, when the temperature of the outdoor air is lower than the temperature of the indoor air, the opening amount of the outdoor air inlet 12 is opened by about 50%, In this way, the fresh air is introduced into the interior of the cabin through the open air intake opening 12 opened by about 50%, so that the interior of the cabin can be sufficiently ventilated.

On the other hand, as a result of comparing the vehicle interior temperature and the vehicle interior temperature input from the vehicle interior and exterior temperature detecting means 34, if the temperature inside the vehicle interior is not higher than the temperature outside the vehicle interior, that is, the temperature outside the vehicle interior is determined to be higher. Since the controller 40 is currently occupant in the cabin, it is necessary to ventilate the cabin by introducing outside air. However, when the outside air flows into the cabin due to the high temperature of the outside air, the temperature inside the cabin may be changed. It is determined that there is, and according to this determination, even if the outside air is introduced for ventilation in the vehicle interior, it is configured to determine the amount of introduction of the outside air in consideration of the pollution degree of the interior air.

According to this configuration, the control unit 40 compares and determines whether the concentration of carbon dioxide in the vehicle input from the carbon dioxide concentration detecting unit 36 is equal to or less than a predetermined "reference concentration".

As a result of the determination, if the concentration of carbon dioxide in the vehicle room is not lower than or equal to the "standard concentration", that is, if the concentration of carbon dioxide in the vehicle exceeds the "standard concentration", the control unit 40 has a high temperature in the outside air, but the air in the vehicle interior is high. Is contaminated, it is determined that a large amount of outside air is required to ventilate the inside of the car.

When the determination is made, the control unit 40 enters the "third mode", and the control unit 40 entering the "third mode" moves the intake door 20 to the outside air inlet 12 and the bet. Control to the "third position E" between the inlets 14. Thus, the open air inlet 12 is opened. This allows the introduction of large amounts of outside air. As a result, sufficient in-vehicle ventilation can be achieved.

Preferably, the "third position E" of the intake door 20 is a position when the opening amount of the open air inlet 12 with respect to the inside air inlet 14 is 50%.

Therefore, when the user is in the interior of the vehicle and the outside air temperature is higher than the inside temperature while the vehicle is started off, when the air pollution in the interior is severe, the opening degree of the outdoor air inlet 12 is increased. About 50% of the open, and thus, 50% of the open air through the open air intake (12) is a large amount of fresh air is introduced into the interior to allow sufficient ventilation of the interior.

On the other hand, as a result of comparing and comparing the carbon dioxide concentration in the compartment inputted from the carbon dioxide concentration detecting means 36 with the "reference concentration", as a result, if the "reference concentration" or less, the control unit 40, the user is currently boarded in the vehicle interior Although ventilation of the room is necessary, since the temperature of the outside air is high and the air in the cabin is not contaminated, it is judged that only minimal ventilation is necessary for preserving the temperature in the cabin.

When the determination is made, the control unit 40 enters the "fourth mode", and the control unit 40 entering the "fourth mode" moves the intake door 20 to the outside air inlet 12 and the inside air inlet. Control to the "fourth position F" between (14).

Therefore, the outside air inlet 12 is opened in a small amount. This allows the introduction of outside air to some extent. As a result, ventilation in the cabin can be made within a minimum range.

Preferably, the "fourth position F" of the intake door 20 is a position when the opening amount of the open air inlet 12 with respect to the inside air inlet 14 is 20%.

Therefore, when the user is in the interior of the vehicle with the vehicle started off, the outside temperature is higher than the interior temperature, and the air pollution in the interior is not severe, the opening degree of the outdoor air inlet 12 is The amount is about 20% open, and thus, the fresh air is introduced into the vehicle interior through the outdoor air inlet 12 which is opened by about 20%, thereby allowing the interior of the vehicle to be ventilated to a minimum extent.

Next, an operation example of the air conditioner having such a configuration will be described with reference to FIGS. 2 and 3.

First, in a state where the air conditioner is operating (ON) (S101), it is determined whether the start of the vehicle is OFF (S103).

As a result of the determination, if the start of the vehicle is turned off (OFF), it is again determined whether the user is in the vehicle interior (S105).

If it is determined that the user is not in the cabin (S105-1), the controller 40 is currently in a passenger-free state, so that the outside air is introduced to ventilate the cabin, but only minimal ventilation is required. To judge.

When the determination is made, the controller 40 enters the "first mode" and controls the intake door 20 to the "first position C" (S107). For example, the opening degree of the outdoor air inlet 12 is controlled at a position when 20%.

Then, the outside air inlet 12 is opened a small amount. In this way, the introduction of outside air is allowed, and as a result, ventilation in the cabin is achieved within the minimum range.

On the other hand, if it is determined in step S105 that the user is in the vehicle interior, the control unit 40 is currently occupying the interior of the vehicle, and therefore, it is necessary to introduce outside air to ventilate the interior of the vehicle, If the outside air flows in, there is a possibility that a change in the temperature inside the vehicle will occur.

In response to this determination, the control unit 40 compares whether the temperature in the vehicle interior is lower than the temperature outside the vehicle interior (S109).

As a result of the comparison, when the temperature inside the vehicle interior is not lower than the temperature outside the vehicle interior (S109-1), that is, when the temperature outside the vehicle interior is lower than the temperature inside the vehicle interior, the temperature outside the vehicle interior is low, so even if the amount of air introduced is increased We believe the change in temperature in the cabin will not intensify.

When the determination is made, the controller 40 enters the "second mode" and controls the intake door 20 to the "second position D" (S111). For example, it controls to the position when the opening degree of the outdoor air inlet 12 is 50%.

Then, a large amount of outside air is introduced while the opening amount of the outside air inlet 12 is increased. In this way, sufficient ventilation is achieved in the vehicle interior.

On the other hand, if it is determined in step S109 that the temperature in the vehicle interior is lower than the temperature outside the vehicle interior, that is, when it is determined that the temperature of the outside air is high, the controller 40 currently has passengers in the vehicle interior, Although it is necessary to ventilate the interior of the vehicle, if the temperature of the outside air is high due to the high temperature of the outside air, there is a possibility that the temperature inside the inside of the vehicle may be changed. I think I should.

Then, according to the determination, the control unit 40 compares and determines whether the concentration of carbon dioxide in the vehicle is less than or equal to a preset "reference concentration" (S113).

If the determination result is not equal to or less than the "standard concentration" (S113-1), that is, if the concentration of carbon dioxide in the vehicle room exceeds the "standard concentration", the controller 40 indicates that the temperature of the outside air is high, but Since it is contaminated, it is determined that a large amount of outside air is required to ventilate the inside of the car.

And according to this determination, the control part 40 controls the intake door 20 to a "third position E", entering into "third mode." For example, it controls to the position when the opening degree of the outdoor air inlet 12 is 50%.

Then, a large amount of outside air is introduced while the opening amount of the outside air inlet 12 is increased. In this way, sufficient ventilation is achieved in the vehicle interior.

On the other hand, if it is determined in step S113 that the concentration of carbon dioxide in the vehicle room is less than or equal to the "standard concentration", the control unit 40 requires the user to be ventilated in the cabin because the user is currently in the vehicle cabin, It is high and the air inside the vehicle is not contaminated, so it is judged that only minimal ventilation is necessary for preserving the temperature in the vehicle interior.

In response to this determination, the controller 40 enters the "fourth mode" and controls the intake door 20 to the "fourth position F". For example, the opening degree of the outdoor air inlet 12 is controlled at a position when 20%.

Then, the outside air inlet 12 is opened a small amount. In this way, the introduction of outside air is allowed, and as a result, ventilation in the cabin is achieved within the minimum range.

According to the present invention having such a configuration, since the opening amount of the intake door 20 is actively controlled at the time of starting the vehicle off, the vehicle is started off at the time of starting the vehicle off. Therefore, the amount of air to be introduced can be actively controlled according to the conditions inside and outside the vehicle.

In addition, when the vehicle is turned off, the amount of fresh air can be actively controlled in accordance with conditions in and out of the vehicle, and thus, when the vehicle is turned off, excessive inflow of air and the sudden The temperature change can be prevented.

In addition, when the vehicle is turned off, it is possible to prevent excessive inflow of air and consequent sudden changes in temperature in the cabin, so that the temperature inside the cabin can always be kept comfortable regardless of the vehicle's startup. Can be.

In addition, when the vehicle is turned off, the amount of fresh air can be actively controlled in accordance with conditions inside and outside the vehicle. Therefore, the vehicle is temporarily turned off and immediately turned on again. Even when it is made, the introduction amount of the outside air can be actively controlled according to the conditions inside and outside the vehicle.

In addition, even when the vehicle is temporarily turned off and immediately turned on again, the introduction of outside air can be actively controlled according to the conditions of the interior and exterior of the vehicle, thereby temporarily turning off the vehicle. When it is turned OFF, a sudden temperature change in the vehicle interior due to excessive inflow of air can be prevented, and therefore, comfort in the vehicle interior can be improved.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope described in the claims.

10: air conditioning case (Case) 12: entrance to the outside air
14: Intake Door Entrance 20: Intake Door
30: start off detection means 32: user boarding detection means
34: vehicle interior and exterior temperature sensing means 36: carbon dioxide concentration sensing means
40: control unit C: first position
D: second position E: third position
F: 4th position

Claims (6)

For a vehicle including an intake door 20 that rotates between the outside airway inlet 12 and the inside airway inlet 14 to control the opening amount of the outside airway inlet 12 and the inside airway inlet 14. In the air conditioning apparatus,
When the vehicle is turned off (OFF), the outdoor air inlet 12 includes a control unit 40 for controlling the intake door 20 to be opened,
The control unit 40, when the vehicle is turned off (OFF),
When the user is not in the cabin, the intake door 20 is controlled to the first position C between the outdoor airway inlet 12 and the internal airway inlet 14,
When the user is in the vehicle interior, if the temperature outside the vehicle interior is lower than the temperature inside the vehicle interior, the intake door 20 is placed between the outdoor airway entrance 12 and the internal airway entrance 14. It controls to the 2nd position D which opens the outside air inlet 12 more than 1 position C,
If the temperature outside the vehicle interior is higher than the temperature in the vehicle interior, the air conditioning apparatus for the vehicle, characterized in that to control the opening angle of the intake door 20 to the outside air inlet 12 in accordance with the concentration of carbon dioxide in the vehicle interior. . delete delete The method of claim 1,
The control unit 40,
When the vehicle is turned off and the user is in the interior of the vehicle and the temperature outside the vehicle is higher than the temperature in the vehicle, the carbon dioxide concentration in the vehicle exceeds the preset reference concentration. The intake door 20 is controlled to a third position E which opens the outside air inlet 12 more than the first position C among the outside air inlet 12 and the inside air inlet 14. and,
When the carbon dioxide concentration in the vehicle room is less than or equal to the reference concentration, the intake door 20 is positioned between the second airway D and the third airway E between the airway inlet 12 and the airway inlet 14. The air conditioner for a vehicle, characterized in that to control the outside air inlet (12) to the fourth position (F) to open less. delete The method of claim 4, wherein
The first position C and the fourth position F of the intake door 20 are positions when the opening amount of the outside air inlet 12 is 20%,
The second position (D) and the third position (E) of the intake door (20) are the positions when the opening amount of the open air inlet (12) is 50%.
KR1020130100487A 2013-08-23 2013-08-23 Air conditioning system for automotive vehicles KR102037245B1 (en)

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