KR102171923B1 - Air conditioning system for automotive vehicles - Google Patents

Abstract

The present invention relates to an air conditioner for a vehicle that independently cools and heats a driver's seat, a passenger's seat, and a rear seat. When fogging occurs, the "discharge air volume level" of the window glass side of the driver's seat portion and the window glass side of the passenger seat portion is optimally By configuring to be able to control, it is possible to more effectively cope with the fogging of the window glass, and through this, the purpose of the purpose is to be able to remove the fogging of the window glass more efficiently.
In order to achieve this object, the present invention provides an air volume distribution door that distributes the air volume of the blower introduced into the driver's seat side passage and the passenger side passage to control the amount of air discharged to the driver's seat portion and the passenger seat portion, and when fogging of the window glass occurs. In a vehicle air conditioner including a defogging device that blows air toward the window glass by controlling the ediff door, the intake door, and the blower, when fogging of the window glass occurs, the current number of discharged air levels in the driver's seat and the number of air flows in the passenger seat are determined. , Comparing with the preset standard discharge air volume level, the opening position of the air volume distribution door and the rotational speed of the blower are controlled according to the size, and thus the number of air volume levels on the window glass side of the driver's seat and the number of air volume levels on the window glass side of the passenger seat are variably controlled. It has a control unit.

Description

Vehicle air conditioning system {AIR CONDITIONING SYSTEM FOR AUTOMOTIVE VEHICLES}

The present invention relates to an air conditioner for a vehicle that independently cools and heats the driver's seat portion and the passenger seat portion, and more particularly, when fogging of the window glass occurs, the "discharge air volume level" of the window glass side of the driver's seat portion and the window glass side of the passenger seat portion is optimal. The present invention relates to an air conditioner for a vehicle capable of more effectively responding to fogging of the window glass by configuring it to be controlled in the state of, and capable of removing and processing the fogging of the window glass more efficiently.

Recent vehicle air conditioners are equipped with a defogging device that automatically removes fogging from the window glass when fogging occurs on the window glass.

The defogging device detects the relative humidity of the window glass (hereinafter, abbreviated as “window humidity”), and when the detected window glass humidity is higher than the preset “standard humidity”, it enters the defogging mode and It converts the suction mode to the outdoor air mode, opens the defrost vent on the window pane, and operates the air conditioner and blower.

Therefore, fresh air from the outside is cooled and discharged to the window pane. Thereby, the discharged cold air makes it possible to remove fogging of the window glass.

On the other hand, the defogging device is configured to increase the number of rotational stages of the blower above a preset “reference rotational stage” when entering the “defogging mode”. This is to increase the air volume of air discharged to the window glass side, and to more effectively remove fogging from the window glass.

Here, when the defogging device enters the "defogging mode", if the number of rotational stages of the blower is already more than the "standard number of rotations", the existing number of rotational stages is maintained and the existing number of rotational stages is "reference rotation. If it is less than the number of stages, it is raised to the “standard number of rotation stages”.

However, in the case of a single zone type air conditioner that controls the temperature of the driver's seat and the passenger's seat equally, the conventional defogging device controls the number of rotations of the blower when entering the "defogging mode". (Raise) is easy, but in the case of a dual zone type air conditioner that independently controls the temperature of the driver's seat and passenger's seat, when entering the "defogging mode", control the number of rotations of the blower (rise) There is a disadvantage that it is difficult.

In particular, when the temperature of the driver's seat and the passenger's seat is set differently, the "discharge air volume level" of the driver's seat and passenger's seat is controlled differently. In this case, when entering the "defogging mode", the blower rotates. The drawback is that it is unclear to which standard the singular control should be met.

And because of this disadvantage, in the case of a dual zone type air conditioner, there is a problem that it is difficult to control (rise) the number of rotational stages of the blower when entering the "defogging mode". Because of this problem, the dual zone type air conditioner is When entering ", the number of rotation stages of the blower is not controlled (increased).

The present invention was conceived to solve the conventional problems as described above, and its object is to provide a control standard for the blower for the driver's seat portion and the passenger seat portion when fogging of the window glass occurs, and thus, the driver's seat portion It is to provide a dual zone type vehicle air conditioner capable of optimally controlling the "discharge air volume level" on the windowpane side and the passenger seat portion.

Another object of the present invention is to more effectively respond to fogging of the window glass by configuring to control the "discharge air volume level" of the window glass side of the driver's seat portion and the window glass side of the passenger's seat in an optimal state when fogging of the window glass occurs, Through this, it is to provide a vehicle air conditioner that can more efficiently remove and process fogging of window glass.

Another object of the present invention is to provide an air conditioner for a vehicle that can help safe driving by configuring to more effectively remove fogging of a window glass.

In order to achieve this object, the air conditioner for a vehicle according to the present invention comprises an air volume distribution door that distributes the air volume of the blower introduced into the driver's seat side passage and the passenger side passage to adjust the amount of air discharged to the driver's seat portion and the passenger seat portion. , In the vehicle air conditioner including a defogging device that blows air toward the window by controlling the deep door, the intake door and the blower when fogging of the window glass occurs, the current driver's seat portion discharged The number of discharged air volume levels in the passenger seat part is compared with the reference discharged air volume levels set in advance, and the opening position of the air volume distribution door and the rotational speed of the blower are controlled according to the size, and the number of discharged air volume levels on the window glass side of the driver's seat and the passenger seat It characterized in that it comprises a control unit for variably controlling the number of discharged air volume stages on the side of the partial window glass.

Preferably, the control unit is configured to organically control the air volume distribution door and the blower when both the current driver's seat part discharge air volume level and the passenger seat part discharge air volume level are less than the reference discharge air volume level, and the driver's seat part discharge air volume level and the It is characterized in that the number of discharged air volume levels in the passenger seat portion is increased to the reference discharged air volume level.

And the control unit, if any one of the current driver's seat part discharge air volume level and the passenger seat part discharge air volume level is less than the reference discharge air volume level, and the other is more than the reference discharge air volume level, a discharge air volume equal to or greater than the reference discharge air volume level. The air volume distribution door and the blower are controlled based on the number of stages, and the number of air volume stages in the driver's seat and the number of air volume stages in the passenger seat are controlled in accordance with the number of air volume stages greater than or equal to the reference air volume level.

And, the control unit maintains the air volume distribution door and the blower in the current state when both the current driver's seat part discharge air volume level and the passenger seat part discharge air volume level are equal to or greater than the reference discharge air volume level, so that the driver's seat part discharge air volume level and the It is characterized in that it maintains all the number of discharged air volume stages in the passenger seat in the current state.

And when the fogging of the window glass is removed, the control unit restores the air volume distribution door and the blower to their original state, and restores the discharge air volume level in the driver's seat part and the discharge air volume level in the passenger seat part to the original state. To do.

According to the vehicle air conditioner according to the present invention, when fogging of the window glass occurs, the size of the current "driver's seat part discharge air volume level", "the passenger seat part discharge air volume level", and "standard discharge air volume level" are compared. Based on the structure to prepare the control standards for "Driving air volume level" and "Passenger seat air volume level" control, when fogging occurs, the "discharged air volume level" of the driver's seat window glass side and the passenger side window glass side is optimal. There is an effect that can be controlled in the state of.

In addition, when fogging occurs in the windowpane, it is a dual zone type that independently controls the temperature of the driver's seat and passenger's seat because it is a structure that can optimally control the "discharge air volume level" on the windowpane side of the driver's seat and the windowpane side of the passenger's seat. Although it is a (Dual Zone Type), it can effectively cope with the fogging of the window glass, and through this, there is an effect of removing the fogging of the window glass more efficiently.

In addition, since fogging of the window glass can be effectively removed, there is an effect that can help a lot in safe driving when driving.

1 is a view showing the configuration of a vehicle air conditioning apparatus according to the present invention,
2 and 3 are flowcharts showing an example of the operation of the vehicle air conditioner according to the present invention.

Hereinafter, a preferred embodiment of a vehicle air conditioning apparatus 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 dual zone type air conditioner and a defogging device will be briefly described with reference to FIG. 1.

In the dual zone type air conditioner, a driver's seat side passage 14 and a passenger seat side passage 16 are formed inside the air conditioning case 10, and a temp door is provided in each of the formed driver's seat side passages 14 and the passenger seat side passages 16. Install (Temp. Door)(20, 22).

And by individually controlling the installed driver's seat and passenger's temp doors (20, 22), the amount of cooling and hot air flow in the driver's seat side passage (14) and the passenger seat side passage (16) is individually controlled.

Accordingly, the temperature of the air supplied to the driver's seat and the passenger seat is independently controlled. As a result, the driver's seat and the passenger seat are independently cooled and heated.

Further, the dual zone type air conditioner further includes an air volume distribution door 30 provided on the upstream side of the driver's seat side passage 14 and the passenger's seat side passage 16.

The air volume distribution door 30 controls the opening amount of the driver's seat side passage 14 and the passenger side passage 16 while rotating between the driver's seat side passage 14 and the passenger side passage 16.

Accordingly, the air volume of the blower 40 introduced into the driver's seat side passage 14 and the passenger seat side passage 16 is distributed. Thereby, the "discharge air volume" of the air supplied to the driver's seat part and the passenger seat part of the vehicle interior is controlled.

On the other hand, the dual zone type air conditioner controls the air volume distribution door 30 and the blower 40 organically to each other to control the "discharge air volume level" in the driver's seat part and the "discharge air volume level" in the passenger seat part.

In particular, when the user sets the temperature of the driver's seat and passenger seats respectively, the "opening position" of the air volume distribution door 30 for the driver's seat and passenger seat side passages 14, 16 and the blower 40 according to the set temperature. The rotation speed is organically controlled with each other. Accordingly, the "discharge air volume level" in the driver's seat portion and the "discharge air volume level" in the passenger seat portion are controlled.

Here, the "discharge air volume level" of the driver's seat and the "discharge air volume level" of the passenger seat, the "opening position" of the air volume distribution door 30 and the rotational speed of the blower 40 are previously stored as "table values". have.

Therefore, when the user sets the temperature of the driver's seat and the passenger's seat respectively, the "discharge air volume level" and the "discharge air volume level" of the driver's seat are automatically adjusted according to the set "driver's seat temperature" and "passenger seat temperature". At this time, the "opening position" of the air volume distribution door 30 for the "discharge air volume level" of the set driver's seat and the "discharge air volume level" of the passenger seat and the rotational speed of the blower 40 are "table value" Is detected in

In addition, the "opening position" of the air volume distribution door 30 and the rotational speed of the blower 40 are controlled according to the detected "table value". Thereby, the "discharge air volume level" in the driver's seat and the "discharge air volume level" in the passenger seat are automatically controlled according to the set temperature in the driver's seat and the set temperature in the passenger seat.

Meanwhile, the defogging device senses the humidity of the window glass with the defog sensor 50 and then inputs the detected window glass humidity to the control unit 60. At this time, the control unit 60 determines whether the humidity of the window glass input from the defog sensor 50 is equal to or greater than the "reference humidity".

As a result of the determination, if it is higher than the "standard humidity", the deep door 70 is opened to a predetermined opening amount while entering the "defogging mode", the intake door 72 is switched to the "outdoor air mode", and the air conditioner 74 And operate the blower (40).

Accordingly, fresh air from the outside is cooled, the cooled outside air is discharged to the window glass through a defrost vent (not shown), and the discharged cold air can remove fogging from the window glass.

Next, features of the vehicle air conditioner according to the present invention will be described in detail with reference to FIG. 1.

First, the air conditioner of the present invention includes a discharge air volume level detecting means 80 for detecting "the discharge air volume level" in the driver's seat part and the "discharge air volume level" in the passenger seat part, respectively.

The discharge air volume stage detection means 80 is composed of an automatic control unit (not shown) that automatically controls the air volume distribution door 30 and the blower 40.

The automatic control unit organically controls the air volume distribution door 30 and the blower 40 according to the "user set temperature", and through this, the "discharge air volume level" in the driver's seat part and the "discharge air volume level" in the passenger seat part. By automatic control, the "discharge air volume level" in the driver's seat and the "discharge air volume level" in the passenger seat are sensed.

Again, referring to FIG. 1, the air conditioning apparatus of the present invention includes a control unit 60, wherein the control unit 60, when the fogging of the window glass occurs and enters the "defogging mode," The "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" are inputted from the sensing means 80. At this time, the input "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" are set in advance as the "reference discharge" Compare with "No. of air volume".

In particular, it is compared whether each of the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" input from the discharge air volume level detection means 80 is less than or equal to the "standard discharge air volume level". For example, whether it is less than or equal to "three stages of discharge air volume" is compared, respectively.

As a result of the comparison, if both the "driver's seat part discharge air volume level" and the "passenger seat part discharge air volume level" are less than "standard discharge air volume level", for example, if it is less than "3rd level", the controller 60 removes fogging of the window glass. At the time, it is determined that the efficiency of removing fogging of the window glass is low because the air discharged to the side of the window glass is low.

And according to this determination, the control unit 60 organically controls the air volume distribution door 30 and the blower 40 to determine both the "driver's seat part discharge air volume level" and the "passenger seat part discharge air volume level" as "standard discharge air volume level" "To rise to. Accordingly, the amount of air discharged to the side of the window glass is increased. This increases the efficiency of removing fogging from the window glass.

On the other hand, as a result of the comparison, if both the "driver's seat part discharge air volume level" and the "passenger seat part discharge air volume level" are more than the "standard discharge air volume level", for example, if it is found to be "three levels" or more, the controller 60, It is judged that the efficiency of removing fogging from the window glass is high because the air discharged to the side of the window glass is already sufficiently high.

And according to this determination, the air volume distribution door 30 and the blower 40 are maintained in the current control state, thereby maintaining both the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" in the current state. .

Again, referring to FIG. 1, the control unit 60 compares the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" input from the discharge air volume level detection means 80 with "standard discharge air volume level" As a result, if it is determined that one of the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" is less than the "standard discharge air volume level" and the other is more than the "standard discharge air volume level", the controller 60 ) Is configured to control the air volume distribution door 30 and the blower 40 based on the "discharge air volume level" that is more than the "standard discharge air volume level".

Accordingly, in accordance with the "discharge air volume level" that is equal to or greater than the "standard discharge air volume level", the "discharge air volume level in the driver's seat" and the "discharge air volume level in the passenger seat" can be controlled equally.

For example, when the "standard discharge air volume level" is "3 stages", the "driver's seat part discharge air volume level" is 2 stages, and when it is determined that the "passenger seat air volume stage number" is "5 stages", the controller 60 ) Is configured to control the air volume distribution door 30 and the blower 40 in accordance with "5 stages", which is "the number of air volume stages in the passenger seat portion".

Therefore, both the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" can be controlled equally in accordance with "5th level". Thereby, the discharged air volume of the air discharged to the side portion of the window glass can be increased. As a result, it increases the efficiency of removing fogging from the window glass.

On the contrary, when it is determined that the "driver's seat part discharge air volume level" is 5 and the "passenger seat part discharge air volume level" is determined to be "2nd level", the control unit 60 is set to "5th level" which is the "driver's seat part discharge air volume level" The air volume distribution door 30 and the blower 40 are controlled accordingly.

Accordingly, the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" can be controlled equally in accordance with "5th level". Thereby, the discharged air volume of the air discharged to the side portion of the window glass can be increased. As a result, it increases the efficiency of removing fogging from the window glass.

Next, an operation example of the present invention having such a configuration will be described with reference to FIGS. 1, 2 and 3.

First, when the air conditioner is turned on (S101), it is determined whether fogging of the window glass occurs (S103). The judgment at this time is based on whether or not the humidity of the window glass is equal to or greater than the "standard humidity".

On the other hand, if it is determined that fogging has occurred in the window glass as a result of the determination, the controller 60 enters the "defogging mode" (S105), and the controller 60 that has entered the "defogging mode" It is determined whether both the discharge air volume level" and the "passenger air volume level number" are less than the "standard discharge air volume level" (S107). For example, it is determined whether both the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" are less than "3rd level".

As a result of the determination, if both the "driver's seat part discharge air volume level" and the "passenger seat part discharge air volume level" are less than "3 levels", the controller 60, when removing fogging of the window glass, the discharge air volume of air discharged to the window glass side As this is low, it is recognized that the efficiency of removing fogging from the window glass is low.

And according to this recognition, by organically controlling the air volume distribution door 30 and the blower 40, both the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" are raised to "standard discharge air volume level" (S109). ).

Then, the amount of air discharged to the side of the window glass increases, and fogging of the window glass is efficiently removed.

On the other hand, in step (S107), as a result of the comparison, if both the "driver's seat part discharge air volume level" and the "passenger seat part discharge air volume level" are not less than "standard discharge air volume level" (S107-1), "driver's seat part discharge air volume level" It is determined again whether both of and "the number of discharged air volume levels in the passenger seat" are equal to or greater than the "standard discharge air volume level" (S111). For example, it is determined again whether both the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" are equal to or greater than "3rd level" (S111).

As a result of the determination, if both the "driver's seat part discharge air volume level" and the "passenger seat part discharge air volume level" are equal to or greater than "three levels", the control unit 60, because the discharge air volume of the air discharged to the windowpane side is already high, a separate " It is recognized that the efficiency of removing fogging from the window glass is high even without an increase in the number of discharged air flow levels.

And according to this recognition, the control unit 60 maintains the air volume distribution door 30 and the blower 40 in the current state, so that both the "driver's seat part discharge air volume level" and the "passenger seat part discharge air volume level" To maintain the state (S113).

On the other hand, in step (S111), if both the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" are not more than "standard discharge air volume level" (S111-1), the controller 60, " It is determined again whether one of the driver's seat part discharge air volume level" and the "passenger seat part discharge air volume level" is less than the "standard discharge air volume level" and the other is more than the "standard discharge air volume level" (S115).

For example, it is determined again whether one of the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" is less than "3rd level" and the other is "3rd level" or more.

As a result of the determination, if one of the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" is less than "3rd level" and the other is more than "3rd level", the controller 60 will The air volume distribution door 30 and the blower 40 are controlled based on "the number of stages of discharge air volume" which is "3 stages" or more.

Then, both the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" are controlled in accordance with the "discharge air volume level" greater than the "standard discharge air volume level (three stages)" (S117). As a result, the amount of air discharged to the side portion of the window glass increases, and the fogging of the window glass is efficiently removed.

On the other hand, the control unit 60, although not shown in the drawings of Figs. 2 and 3, through the steps (S109) and (S117) to control the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" When it is determined that the fogging of the window glass has been removed, the air volume distribution door 30 and the blower 40 are returned to their original state while being released from the "defogging mode".

Accordingly, the "driver's seat part discharge air volume level" and "the passenger seat part discharge air volume level" are restored to their original states.

According to the present invention having such a configuration, when fogging of the window glass occurs, the size of the current "driver's seat part discharge air volume level", "the passenger seat part discharge air volume level", and "standard discharge air volume level" are compared, and then the size is As a basis, it is a structure to prepare the control standards for "Driver's seat part discharge air volume level" and "Passenger seat part discharge air volume level", so when fogging occurs, the "discharge air volume level" in the driver's seat part window glass side and the passenger side part window glass side is optimal. Can be controlled by state.

In addition, when fogging occurs in the windowpane, it is a dual zone type that independently controls the temperature of the driver's seat and passenger's seat because it is a structure that can optimally control the "discharge air volume level" on the windowpane side of the driver's seat and the windowpane side of the passenger's seat. Despite the (Dual Zone Type), it can effectively cope with the fogging of the window glass, and through this, it is possible to remove the fogging of the window glass more efficiently.

In addition, since fogging of the window glass can be effectively removed, it can help a lot in safe driving while driving.

In the above, preferred embodiments of the present invention have been exemplarily described, but the scope of the present invention is not limited to such specific embodiments, and can be appropriately changed within the scope described in the claims.

10: air conditioning case 14: driver's seat side passage
16: passenger side passage 20, 22: Temp. Door
30: air volume distribution door 40: blower
50: Defog sensor 60: control unit
70: Def. Door 72: Intake Door
74: Aircon 80: discharge air volume stage detection means

Claims (5)

An air volume distribution door 30 that distributes the air volume of the blower 40 introduced into the driver's seat side passage 14 and the passenger side passage 16 to control the amount of air discharged to the driver's seat portion and the passenger seat portion, and fogging of the window glass In the vehicle air conditioner comprising a defogging device for blowing air toward a window glass by controlling the deep door 70, the intake door 72, and the blower 40 when generated,
When fogging of the window glass occurs, the current driver's seat portion and the passenger's seat portion are compared with a preset reference air volume level, and the opening position of the air volume distribution door 30 and the blower ( 40), and a control unit 60 for variably controlling the number of discharged air volume stages on the window glass side of the driver's seat portion and the number of discharged air volume stages on the window glass side of the passenger seat portion,
For each of the driver's seat part discharge air volume level and the passenger seat part discharge air volume level, it is determined whether it is less than or above the standard discharge air volume level,
Depending on whether both the driver's seat and the passenger seat discharge air volume levels are less than the standard air volume levels, only one is less than the standard air volume levels, and both are more than the standard air volume levels, the control standards for the number of air volume levels in the driver's seat and the passenger seat are controlled differently. ,
The control unit 60,
If any one of the current driver's seat part discharge air volume level and the passenger seat part discharge air volume level is less than the standard discharge air volume level and the other is more than the standard discharge air volume level, the number of discharged air volume levels greater than the standard discharge air volume level An air conditioner for a vehicle, characterized in that controlling the air volume distribution door 30 and the blower 40 to control the number of air volume levels in the driver's seat and the number of air volume levels in the passenger seat in accordance with the number of air volume levels greater than or equal to the reference air volume level. The method of claim 1,
The control unit 60,
If both the current driver's seat part discharge air volume level and the passenger seat part discharge air volume level are less than the standard discharge air volume level, the air volume distribution door 30 and the blower 40 are organically controlled, and the driver's seat part discharge air volume level and the passenger seat part An air conditioner for a vehicle, characterized in that raising all of the number of discharged air volume levels to the reference number of air volume levels. delete The method of claim 1,
The control unit 60,
If both the current driver's seat part discharge air volume level and the passenger seat part discharge air volume level are equal to or greater than the standard discharge air volume level, the air volume distribution door 30 and the blower 40 are maintained in the current state, and the driver's seat part discharge air volume level and An air conditioner for a vehicle, characterized in that maintaining all of the air volume stages discharged in the passenger seat portion in a current state. The method according to claim 1 or 2,
The control unit 60,
When the fogging of the window glass is removed, the air volume distribution door 30 and the blower 40 are returned to their original state, and the number of air volume stages in the driver's seat portion and the number of air volume stages in the passenger seat portion are restored to their original state. Vehicle air conditioning system, characterized in that.

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