KR20160038982A - Air conditioning system for automotive vehicles - Google Patents

Air conditioning system for automotive vehicles Download PDF

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Publication number
KR20160038982A
KR20160038982A KR1020140131416A KR20140131416A KR20160038982A KR 20160038982 A KR20160038982 A KR 20160038982A KR 1020140131416 A KR1020140131416 A KR 1020140131416A KR 20140131416 A KR20140131416 A KR 20140131416A KR 20160038982 A KR20160038982 A KR 20160038982A
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KR
South Korea
Prior art keywords
humidity
air
evaporator
mode
inlet side
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KR1020140131416A
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Korean (ko)
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KR102037242B1 (en
Inventor
백창현
김영민
김태은
민세원
유상준
정홍래
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한온시스템 주식회사
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Publication of KR20160038982A publication Critical patent/KR20160038982A/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
    • B60H1/00735—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
    • B60H1/00785—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 the detection of humidity or frost
    • 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
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3205—Control means therefor
    • B60H1/3207—Control means therefor for minimizing the humidity of the air

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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 is to provide an air conditioning device for vehicles, and the purpose of the present invention is as follows. In a defogging mode, an intake door is not unconditionally controlled by an external air mode, but is controlled in multiple stages considering humidity outside a vehicle, thereby facilitating preparation for an inflow of external air with high humidity if humidity outside the vehicle is higher than humidity inside the vehicle. Accordingly, in the defogging mode, a window glass fog intensifying phenomenon, which is caused by the inflow of external air with high humidity, may be prevented. In order to achieve this purpose, the air conditioning device for vehicles with a control part which supplies external air toward a window glass by controlling the intake door in the external air mode while entering into the defogging mode when humidity of a window glass, which is inputted into a defog sensor, is higher than reference humidity, comprises a humidity detecting unit around an evaporator inlet, which detects humidity of air flowing into the evaporator inlet, wherein the control part controls the intake door in multiple stages up to a preset opening angle toward an external mode in accordance with humidity of air around the evaporator inlet, which is inputted from the humidity detecting unit, in the defogging mode.

Description

TECHNICAL FIELD [0001] The present invention relates to an air conditioning system for an automobile,

More particularly, the present invention relates to an air conditioner for a vehicle, which is configured to control the intake door unconditionally in an " outside air mode "in a " Thus, when the outdoor humidity is higher than the humidity in the car interior, it is possible to prevent the inflow of outside air of high humidity, thereby preventing the "deepening of window glass fogging" caused by the influx of outside air in the "dephogging mode" The present invention relates to an air conditioner for a vehicle.

In recent years, automotive air conditioning systems have been widely used in automatic control systems.

The automatic control system air conditioner senses the temperature, humidity, and radiation of the inside and outside of the car, and then automatically adjusts the temperature of the inside of the car according to the detected data. Therefore, the temperature of the interior of the car is always maintained comfortably.

Such an automatic control system air conditioning apparatus has a defogging device for automatically removing fogging of a window glass when fogging occurs in a window glass of a vehicle.

As shown in Fig. 1, the defogging apparatus comprises a dashboard sensor 1 for sensing a relative humidity on the side of a window glass (hereinafter referred to as "window glass humidity"), And a control unit 9 for controlling the def door 3, the intake door 5, the compressor 7 of the air conditioner and the blower 8 according to the humidity.

Particularly, when the humidity of the window glass inputted from the depoens sensor 1 is equal to or higher than the "reference humidity ", the control unit 9 switches the deep door 3 to a predetermined opening amount And switches the intake door 5 to the "outside air mode A ", and operates the compressor 7 and the blower 8.

Therefore, the fresh outside air is cooled while passing through the evaporator 7a, and the cooled outside air is discharged to the windowpane through the deep vent 3a, so that the discharged cold air can remove the fogging of the windowpane do.

However, in such a conventional defogging apparatus, in the state of entering the "dephogging mode ", there is a case where the outdoor humidity is rather higher than the humidity in the vehicle interior depending on the traveling region of the vehicle. There is a disadvantage in that the outside air of high humidity is introduced into the passenger compartment due to the intake door 5 which has been converted into the passenger compartment (A). This disadvantage leads to a problem that the fogging phenomenon of the windowpane is further increased.

The relative humidity of the window glass is further increased due to the inflow of the outside air of high humidity. Because of this relatively high window glass side relative humidity, the control unit 9 further increases the number of rotations of the blower 8, Is further increased.

Particularly, as shown in Fig. 2, as the relative humidity on the window side increases, the number of rotations of the blower 8 gradually increases and the amount of opening of the deep door 3 gradually increases , There is a disadvantage that the amount of cold air discharged to the window glass side is excessively increased due to inflow of outside air of high humidity.

The drawback of this drawback is that the amount of cold air discharged to the passenger side is relatively reduced. The drawback of this problem is that the comfort of the interior of the passenger compartment is remarkably deteriorated.

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide an intake door control apparatus, And it is an object of the present invention to provide a vehicle air conditioner which can prepare for a case where humidity outside the car is higher than humidity inside the car.

It is another object of the present invention to provide an air conditioner in which the humidity outside the car interior can be set to be higher than the humidity in the car interior when the vehicle is in the dephogging mode, The air conditioner of the present invention.

It is a further object of the present invention to provide an air conditioner which is capable of restricting inflow of outside air having a humidity higher than that of a car interior to the car interior in the deforging mode, The air conditioner can be prevented from being deteriorated.

It is a further object of the present invention to provide an air conditioner capable of preventing the inflow of outside air of high humidity during the defogging mode, A phenomenon of increase in opening amount "can be prevented.

It is a further object of the present invention to provide an air conditioner that can prevent the phenomenon of "increase in number of blower rotation steps" and "increase in amount of deep air door opening & Which can prevent a phenomenon of " reduction in the amount of cold winds " to the passenger due to "phenomenon of increasing the amount of opening of the deep doors ", and thereby improving the comfort of the passenger compartment.

In order to achieve the above object, the vehicle air conditioning system according to the present invention controls the intake door to the outside air mode while entering the dephoggizing mode and controls the outside air to the window glass side when the humidity of the window glass inputted from the depo- And a control unit for supplying air to the evaporator, wherein the evaporator is provided with a humidity detecting means on the evaporator inlet side for sensing the humidity of the air introduced into the inlet of the evaporator; The control unit controls the intake door in a multistage manner by a predetermined opening angle in the direction of the outside air mode in accordance with the air humidity at the inlet side of the evaporator inputted from the evaporator inlet side humidity sensing means at the time of the defogging mode .

Preferably, the control unit controls the intake door air-side humidity after the one-step control of the intake door and the air-humidity after the one-stage control of the intake door, Only when the air humidity at the inlet side of the evaporator after the one-stage control is lower than the air humidity at the inlet side of the evaporator at the previous stage is repeatedly compared with the air humidity at the inlet side of the evaporator at the previous stage, And a stepwise control is performed stepwise in the mode side direction.

When the air humidity at the evaporator inlet side after the intake door is controlled in one step is equal to or higher than the air humidity at the inlet side of the evaporator at the previous stage, the control unit does not control the intake door in the outside air mode side direction, In the step (c), the further inflow of outside air is restricted.

If the humidity of the evaporator inlet side air humidity is equal to or higher than the evaporator inlet side air humidity of the previous stage after the intake door is controlled in one step, the control unit releases the intake door from the de- To a position of " 0 "

If the humidity of the evaporator inlet side air is higher than the evaporator inlet side air humidity of the previous stage after the intake door has been controlled in one step, the control unit controls the intake door one step in the direction of the admission mode .

When the humidity of the window glass input from the diesel sensor decreases below the reference humidity in the process of controlling the intake door in a multi-stage according to the air humidity at the inlet side of the evaporator, And returns the intake door to its original position.

According to the vehicle air conditioner of the present invention, since the intake door is controlled in a stepwise manner in consideration of the humidity outside the vehicle without controlling the intake door unconditionally to the "outside air mode" There is an effect that it is possible to prepare for a case where the outdoor humidity is higher than the humidity.

Particularly, in the " dephogging mode ", since the intake door is controlled in a stepwise manner in consideration of the humidity of the outside of the car, when the humidity outside the car is higher than the humidity inside the car, There is an effect that a large amount of outside air can be prevented from flowing into the passenger compartment.

Further, in the "dephogging mode", it is possible to restrict a large amount of outside air having a humidity higher than that of the car interior to the car interior. Therefore, in the "dephogging mode", the "deepening of the window glass" There is an effect that can be prevented.

Further, in the " dephogging mode ", it is possible to prevent the inflow of outside air of high humidity. Therefore, when the "dephogging mode" And it is possible to prevent the "phenomenon of reduction in the amount of cold winds"

Further, in the "dephogging mode ", it is possible to prevent the" phenomenon of reduction in the amount of cold winds "on the passenger side, thereby improving the comfort of the passenger compartment.

1 is a view showing a conventional air conditioner for a vehicle,
2 is a view showing a control process of a compressor and a blower of an intake door, a deep door, and an air conditioner when a conventional air conditioner is controlled in a defogging mode,
3 is a view showing a vehicle air conditioner according to the present invention,
4 is a view showing a control process of the intake door when the automotive air conditioner according to the present invention is controlled in the dephogging mode,
5 to 7 are flowcharts showing operational examples of a vehicle air conditioning system 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 (the same components as those in the prior art are denoted by the same reference numerals).

First, a defogging apparatus will be briefly described with reference to FIG. 3 before a characteristic section of an air conditioner according to the present invention will be described.

The deforming device includes a depo sensor (1). The damping sensor 1 is installed on the inner side of the windowpane and detects the relative humidity of the inner side of the windowpane and then inputs the humidity of the sensed windowpane to the control unit 9. [

When the humidity of the window glass inputted from the depot sensor 1 is equal to or higher than the "reference humidity ", the control section 9 enters the deep- The intake door 5 is switched to the " outside air mode A ", and the compressor 7 and the blower 8 are operated.

Therefore, fresh outside air is cooled while passing through the evaporator 7a, and the cooled outdoor air is discharged to the windowpane through the deep vent 3a, so that the discharged cold air can remove the fogging of the windowpane.

Next, the characteristics of a vehicle air conditioner according to the present invention will be described in detail with reference to FIGS. 3 and 4. FIG.

3, the air conditioner of the present invention includes a humidity sensor 10 installed at an inlet side of an evaporator 7a.

The humidity sensor 10 detects the humidity of the inside and outside air flowing into the evaporator 7a and then inputs the sensed data of the "evaporator inlet side air humidity" to the control unit 9 .

The air conditioning apparatus of the present invention is provided with a control unit 9 and the control unit 9 enters the dephoggion mode when the humidity of the window glass input from the depot sensor 1 is equal to or higher than the reference humidity At this time, when entering the "dephogging mode ", the intake door 5 is not completely switched (100%) to the " outside air mode A" Quot; air humidity "data.

3 and 4, when the humidity of the window glass inputted from the depot sensor 1 is equal to or higher than the "reference humidity (c)", the control unit 9 sets the "dehumidification mode "

The control unit 9 which has entered the "dephogging mode " does not completely switch the intake door 5 to the " outside air mode A" (Step A1) "in the direction of the" outside air mode A "by the opening angle of the intake door 5 (here, the opening angle of the intake door 5 means the opening angle to the outside air inlet 5a) do).

The control unit 9 which controls the intake door 5 in the first stage A1 controls the intake door 5 in the first stage among the data of the evaporator inlet side air humidity inputted from the humidity sensor 10 Quot; evaporator inlet air humidity "after controlling the intake door 5 to" first stage (A1) "

At this time, the "evaporator inlet air humidity" after the intake door 5 is controlled to the "first stage (A1) " The control unit 9 recognizes that the humidity of the air introduced into the vehicle interior due to the introduction of the " outside air " is rather higher, so that the intake door 5 is moved from the " Stop. As a result, further introduction of outside air is prevented, thereby further limiting the "humidity rise in the car room ".

On the other hand, the "evaporator inlet side air humidity" after controlling the intake door 5 to the "first stage (A1)" corresponds to the "evaporator inlet air humidity" before the intake door 5 is controlled to the " The control unit 9 recognizes that the humidity of the air introduced into the car room is lowered due to the introduction of the " outside air ", and according to this recognition, the outside air inlet 5a is further opened, We believe that it will be able to increase import volume.

According to this determination, the controller 9 further moves the intake door 5 in the "outside air mode (A)" direction by a predetermined opening angle, for example, an opening angle of 25% ) To the "second stage (A2) ". Therefore, the amount of outdoor air introduced is further increased. Through this, the "anti-fogging efficiency" of the window glass is raised.

On the other hand, in a state where the intake door 5 is controlled to the "second stage (A2) ", the control unit 9 controls the intake door 5 ) Of the evaporator inlet side air humidity before the "second stage (A2)" control after the "second stage (A2)" control of the first stage Compare.

At this time, if the "air humidity at the evaporator inlet side" after the "second stage (A2)" control is equal to or higher than the "air humidity at the evaporator inlet side" at the "first stage (A1)" control, It is recognized that the humidity of the air introduced into the passenger compartment is further increased and the intake door 5 is stopped at the "second pass (A2) ". As a result, further introduction of outside air is prevented, thereby further limiting the "humidity rise in the car room ".

On the other hand, if the "evaporator inlet side air humidity" after the "second stage (A2)" control is less than the "evaporator inlet side air humidity" at the "first stage (A1)" control, It is judged that the humidity of the air introduced into the passenger compartment is lowered, so that the outdoor air inlet 5a may be further opened to further increase the outdoor air intake amount.

In accordance with this determination, the control unit 9 further moves the intake door 5 in the "outside air mode (A)" direction by a predetermined opening angle, for example, an opening angle of 25% ) To the "third stage (A3) ". Therefore, the amount of outdoor air introduced is further increased. Through this, the "anti-fogging efficiency" of the window glass is raised.

As a result, the control unit 9 does not control the intake door 5 to 100% in the "outside air mode A", and does not control the "outside air mode A" The intake door 5 is controlled step by step in the "outside air mode (A)" direction only when the humidity of the air into which the predetermined amount of outside air has been introduced is lowered than before, do.

Therefore, even when entering the "dephogging mode ", only when a predetermined amount of outside air is introduced without introducing the outside air at 100%, only when the humidity of the air in which the outside air is introduced becomes lower than before, Sequentially.

Thus, in the "dephogging mode ", when the humidity outside the car is higher than the humidity in the car, it is possible to restrict the introduction of a large amount of outside air having a humidity higher than that of the car into the car. As a result, in the "dephogging mode ", it is possible to prevent the" deepening of window glass fogging "

In addition, in the "defogging mode", it is possible to prevent the inflow of outside air with high humidity, so that the "blower rotation number rise phenomenon" and "the increase in the opening amount of the deep door" So that it is possible to prevent the phenomenon of "reduction in the amount of cold winds" on the passenger side caused thereby, thereby improving the comfort of the passenger compartment.

On the other hand, in the process of controlling the intake door 5 in a multistage manner in accordance with the data of the "evaporator inlet side air humidity" of the humidity sensor 10, the controller 9 controls the humidity of the window glass input from the depot sensor 1 Quot; is lower than the "reference humidity ", it is released from the" dephogging mode ".

The control unit 9 released in the "dephogging mode " returns the intake door 5 to its original control position.

In the present invention, the controller 9 controls the intake door 5 "one step", and then the "humidity of the evaporator inlet side air" inputted from the humidity sensor 10 is changed to the "evaporator inlet side Air humidity ", it is described that it is fixed at the present stage. However, the intake door 5 may be returned to the original position while being released from the "dephogging mode " Therefore, it is possible to intrinsically block the inflow of outside air of high humidity.

The control unit 9 controls the intake door 5 so that the air humidity at the inlet side of the evaporator 10 inputted from the humidity sensor 10 becomes equal to the evaporator inlet air humidity before the one- , The intake door 5 may be returned "one step" in the direction of the air conditioning mode (B). Therefore, further inflow of outside air can be prevented.

Next, an operation example of the present invention having such a configuration will be described with reference to Figs. 3 to 7. Fig.

First, a first operation example of the present invention will be described with reference to Figs. 3 to 5. Fig.

In the first operation example, it is determined whether or not the humidity of the window glass is equal to or higher than the "reference humidity c" (S103) while the air conditioner is ON (S101).

As a result of the determination, if the reference humidity is equal to or higher than the reference humidity (c), the control unit 9 enters the "dephogging mode" (S105).

The controller 9 which has entered the "defogging mode" moves the intake door 5 in the direction of the " outside air mode A " Quot; first stage (A1) "(S107). Then, the introduction amount of outside air is increased.

On the other hand, the control unit 9, which controls the intake door 5 to the first stage A1, controls the inlet air humidity at the inlet of the evaporator 7a after the intake door 5 is controlled to the first stage A1 Is judged to be equal to or higher than the air humidity on the inlet side of the evaporator 7a prior to the control to the "first stage (A1) " (S109).

As a result of the determination, if the air humidity at the inlet side of the evaporator 7a after the "first stage (A1)" control is equal to or higher than the air humidity at the inlet side of the evaporator 7a before the "first stage (A1) The introduction of "outside air" recognizes that the humidity of the air introduced into the car interior is rather higher.

Then, in accordance with this recognition, the intake door 5 is kept at the "first stage (A1)" (S111). As a result, further introduction of outside air is prevented, thereby further limiting the "humidity rise in the car room ".

On the other hand, as a result of the judgment in the step S109, the air humidity on the inlet side of the evaporator 7a after the control of the first stage A1 is higher than the air humidity on the inlet side of the evaporator 7a before the control of the first stage A1 (S109-1), that is, if the air humidity at the inlet side of the evaporator 7a after the "first stage A1" control is less than the air humidity at the inlet side of the evaporator 7a before the "first stage (A1) , The controller 9 judges that the humidity of the air introduced into the passenger compartment is lowered due to the introduction of the "outside air ", so that the outdoor air inlet 5a may be further opened to further increase the outdoor air intake amount.

In accordance with this determination, the intake door 5 is further moved in the "outside air mode A" direction by a predetermined opening angle, for example, an opening angle of 25%, and is controlled to the "second stage (A2)" S113). Then, as the amount of outside air introduced is further increased, the "anti-fogging efficiency" of the window glass becomes higher.

On the other hand, the control unit 9, which has controlled the intake door 5 to the "second stage (A2)", determines the air humidity at the inlet side of the evaporator 7a at the time of controlling the intake door 5 to the " It is again determined whether or not the air humidity at the inlet side of the evaporator 7a is controlled to be "first stage (A1)" (S115).

As a result of the judgment, if the air humidity at the inlet side of the evaporator 7a at the time of the "second stage (A2)" control is equal to or more than the air humidity at the inlet side of the evaporator 7a at the "first stage (A1) The introduction of "outside air" recognizes that the humidity of the air introduced into the car interior is rather higher.

Then, in accordance with this recognition, the intake door 5 is maintained at the "second stage (A2)" (S117). As a result, further introduction of outside air is prevented, thereby further limiting the "humidity rise in the car room ".

On the other hand, as a result of the judgment in the step S115, the air humidity at the inlet side of the evaporator 7a at the time of the control of the "second stage (A2)" becomes equal to or higher than the air humidity at the inlet of the evaporator 7a , If the air humidity at the inlet side of the evaporator 7a at the time of the control of the "second stage (A2)" is less than the air humidity at the inlet side of the evaporator 7a at the time of the "first stage (A1) , The controller 9 judges that the humidity of the air introduced into the passenger compartment is lowered due to the introduction of the "outside air ", so that the outdoor air inlet 5a may be further opened to further increase the outdoor air intake amount.

In accordance with this determination, the intake door 5 is further moved in the "outside air mode A" direction by a predetermined opening angle, for example, an opening angle of 25%, and is controlled to the "third stage A3" S119). Then, as the amount of outside air introduced is further increased, the "anti-fogging efficiency" of the window glass becomes higher.

On the other hand, the control section 9, which has controlled the intake door 5 to the "third stage (A3) ", repeats the above steps S115, S117, S115-1 and S119, 5) The "evaporator inlet side air humidity" measured in the number of stages and the "evaporator inlet air humidity" measured in the number of stages of the previous intake door 5 are continuously compared and judged (S121).

Then, through this step, the intake door 5 is controlled in the "outside air mode A" direction only when the present "evaporator inlet side air humidity" becomes lower than the previous stage "evaporator inlet side air humidity & .

Through this control process, the intake door 5 is controlled stepwise in the "outside air mode A" direction. Therefore, it is possible to prepare for the case where the outdoor humidity is higher than the humidity in the vehicle interior in the deforging mode.

In particular, when the humidity in the outside of the car is higher than the humidity in the inside of the car in the "dephogging mode ", a large amount of outside air with high humidity can be prevented from entering the car. Thereby, it is possible to prevent the "deepening of window glass fogging" due to the inflow of the outside air of high humidity in the "dephogging mode ".

Next, a second operation example of the present invention will be described with reference to FIG. 3, FIG. 4, and FIG.

The second operation example is the same as the first operation example described above. However, after the control of the intake door 5 is "one stage (one stage and two stages)" as a result of the judgment in the step 109 and the step S115, the air humidity at the inlet side of the evaporator 7a becomes " The intake door 5 is returned to its original position (S111, S117) while being released from the " dephogging mode " if the air humidity at the inlet side of the evaporator 7a before the control is equal to or higher than the inlet air humidity of the evaporator 7a before the control. Blocks at the source.

Next, a third operation example of the present invention will be described with reference to Figs. 3, 4, and 7. Fig.

The third operation example is the same as the first operation example described above. However, after the control of the intake door 5 is "one stage (one stage and two stages)" as a result of the judgment in the step 109 and the step S115, the air humidity at the inlet side of the evaporator 7a becomes " (Step S111, S117) to return the intake door 5 to the "one-step" direction in the direction of the air conditioning mode B when the air humidity at the inlet side of the evaporator 7a before the control is equal to or greater than " do.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

1: Defog Sensor 3: Def. Door
3a: Def. Vent 5: Intake Door
5a: Outside air inlet 7: Compressor
7a: Evaporator 8: Blower
9: Control section 10: Humidity sensor (Sensor)

Claims (6)

When the humidity of the window glass input from the dump sensor 1 is equal to or higher than the reference humidity, the control unit 9 for controlling the intake door 5 to the outside air mode A and supplying the outside air to the window glass side while entering the dephogging mode A vehicle air conditioning system comprising:
And an evaporator inlet side humidity sensing means for sensing the humidity of the air introduced into the inlet of the evaporator (7a);
The control unit (9)
In the defogging mode, the intake door 5 is moved stepwise in the direction of the outside air mode A by a predetermined opening angle in accordance with the air humidity of the inlet side of the evaporator 7a inputted from the evaporator inlet side humidity sensing means Wherein the air conditioner is controlled in a multi-stage manner. The method according to claim 1,
The control unit (9)
After the intake door 5 is controlled to one stage in the direction of the outside air mode A by a predetermined opening angle in the defogging mode,
The air humidity at the inlet side of the evaporator 7a after the one-stage control of the intake door 5 and the air humidity at the inlet side of the evaporator 7a at the previous stage are repeatedly compared, (A) side by a predetermined opening angle only in a case where the side air humidity is lower than the air humidity of the inlet side of the evaporator (7a) in the previous stage The air conditioner of the present invention. 3. The method of claim 2,
The control unit (9)
When the intake air temperature at the inlet side of the evaporator 7a after the intake door 5 is controlled to be one step higher than the air humidity at the inlet side of the evaporator 7a at the previous stage, In the present stage, the air conditioner is fixed in the present stage to limit the inflow of the outside air. 3. The method of claim 2,
The control unit (9)
When the humidity of the air on the inlet side of the evaporator 7a after the control of the intake door 5 is higher than the humidity of the air on the inlet side of the evaporator 7a in the previous stage is released from the dephogging mode, 5) to the original position. 3. The method of claim 2,
The control unit (9)
When the intake air humidity at the inlet side of the evaporator 7a is equal to or greater than the air humidity at the inlet side of the evaporator 7a in the previous stage after the intake door 5 is controlled in one step, ) In a lateral direction of the vehicle. 6. The method according to any one of claims 1 to 5,
The control unit (9)
When the humidity of the window glass input from the diesel sensor 1 drops below the reference humidity in the process of controlling the intake door 5 in a multi-stage according to the air humidity at the inlet side of the evaporator 7a, And returns the intake door (5) to its original position while being released from the dephogging mode.




KR1020140131416A 2014-09-30 2014-09-30 Air conditioning system for automotive vehicles KR102037242B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111319421A (en) * 2018-12-13 2020-06-23 现代自动车株式会社 System for controlling inside/outside air in air conditioner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006182075A (en) * 2004-12-27 2006-07-13 Nissan Motor Light Truck Co Ltd Air-conditioner of vehicle
KR20070062728A (en) * 2005-12-13 2007-06-18 현대자동차주식회사 An auto defog system of vehicle and method for controlling it

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006182075A (en) * 2004-12-27 2006-07-13 Nissan Motor Light Truck Co Ltd Air-conditioner of vehicle
KR20070062728A (en) * 2005-12-13 2007-06-18 현대자동차주식회사 An auto defog system of vehicle and method for controlling it

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111319421A (en) * 2018-12-13 2020-06-23 现代自动车株式会社 System for controlling inside/outside air in air conditioner

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