Multi-air mode device for vehicle air conditioner and control method thereof

Abstract

Disclosed is a multi-air mode device for a vehicle air conditioner, the device including: an air conditioning device (HVAC) provided in a vehicle and supplying air to an inside of the vehicle; an air duct unit communicating with the air conditioning device and provided to deliver air supplied from the air conditioning device to the inside of the vehicle or discharge the air to the outside of the vehicle; and a multi-air discharge unit through which air delivered from the air duct unit is discharged to the inside of the vehicle.

Description

[0001] Cross-references to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2020-0100674, filed on August 11, 2020, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to a multi-wind mode device and control method for a vehicle air conditioning system. More specifically, this disclosure relates to a multi-wind mode device and control method for a vehicle air conditioning system that provides air exhausted through various air exhaust units inside the vehicle to provide a comfortable vehicle environment. Background Technology

[0004] The statements in this section are provided only as background information in connection with this disclosure and may not constitute prior art.

[0005] Vehicles are typically equipped with air conditioning to increase the comfort and well-being of passengers while driving and to promote safe operation. Passengers can use the air conditioning system to appropriately maintain the temperature, humidity, and air quality within the vehicle according to changes in the surrounding environment.

[0006] Passengers can adjust the flow rate and temperature of the air exhausted from the air conditioning unit, and change the direction of the exhausted air, thereby creating a comfortable indoor environment.

[0007] Typically, air conditioning vents include a left exhaust vent on the left side of the driver's seat, a right exhaust vent on the right side of the passenger seat, and a central exhaust vent between the driver and passenger seats. However, the exhaust vents are not located on the right side of the driver's seat or in front of the passenger seat; instead, they are obstructed. Therefore, limitations have been found in delivering sufficient air to the driver and passenger seats during air conditioning operation. Furthermore, automatic adjustment of airflow intensity to provide optimal comfort based on changes in the air conditioning unit's airflow intensity and the vehicle's interior temperature is currently not implemented.

[0008] The information disclosed in this background section is only intended to enhance the understanding of the background of this disclosure and may therefore contain information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0009] This disclosure provides a multi-wind mode device and control method for a vehicle air conditioner capable of providing air discharged through various air exhaust units of the vehicle's air conditioning system and adjusting the air volume according to the vehicle's interior conditions to provide a comfortable vehicle interior environment.

[0010] A multi-air mode device for a vehicle air conditioner according to an example form of the present disclosure includes an air conditioning device (HVAC) provided in a vehicle and supplying air to an inside of the vehicle, an air duct unit communicating with the air conditioning device and provided to deliver the air supplied from the air conditioning device to the inside of the vehicle or to discharge the air to the outside, and a multi-air discharge unit through which the air delivered from the air duct unit is discharged to the inside of the vehicle.

[0011] The air duct unit can include a defrost duct delivering air for removing frost from the inside of the vehicle, a multi-air duct delivering air for cooling and heating to the inside of the vehicle through the multi-air discharge unit, and a ventilation duct discharging air from the inside of the vehicle to the outside.

[0012] The air duct unit can further include a floor duct delivering air for heating and cooling to a floor surface of the inside of the vehicle.

[0013] The multi-air discharge unit can include a left side discharge unit through which the air is discharged toward a driver seat of the inside of the vehicle and a right side discharge unit through which the air is discharged toward a co-driver seat of the inside of the vehicle.

[0014] The multi-air discharge unit can include a mesh-shaped multi-air discharge hole.

[0015] The multi-air discharge hole can be formed to be invisible from a line of sight of an occupant when seated on the driver seat and the co-driver seat of the vehicle.

[0016] The multi-air discharge unit can have a multi-layer structure having a stepped portion.

[0017] The air duct unit can include a dome door enabling the air supplied from the air conditioning device to be in fluid communication with the defrost duct, the multi-air duct, and the ventilation duct, respectively, and provided between the air conditioning device and the air duct unit.

[0018] The air duct unit can include a plurality of flat doors enabling the air supplied from the air conditioning device to be in fluid communication with the defrost duct, the multi-air duct, and the ventilation duct, respectively. In one form, a flat door of the plurality of flat doors is provided between the air conditioning device and the defrost duct, between the air conditioning device and the multi-air duct, and between the air conditioning device and the ventilation duct.

[0019] The air conditioning device and the multi-air duct can be press-sealed to each other by a rubber pad.

[0020] In another form of the disclosure, a control method of a multi-air mode device for a vehicle air conditioner includes a driver turning on a power of an air conditioning device through an air conditioning device operation unit provided in a vehicle, a controller determining whether the driver has turned on a multi-air mode through the air conditioning device operation unit, the controller operating the air conditioning device in the multi-air mode when it is determined that the multi-air mode is turned on, the controller determining whether an intensity of air discharged from the air conditioning device is equal to or greater than a first level, and the controller automatically adjusting the intensity of the air to a second level less than the first level when it is determined that the intensity of the air discharged from the air conditioning device is equal to or greater than the first level.

[0021] In other forms, the control method of the multi-air mode device for the vehicle air conditioner can further include, after the controller automatically adjusts the intensity of the air to the second level less than the first level, the controller determining whether the intensity of the air discharged from the air conditioning device is manually selected, operating in a manually selected level when it is determined that the intensity of the air discharged from the air conditioning device is manually selected, the controller determining whether the driver has turned off the multi-air mode through the air conditioning device operation unit, and the controller operating the air conditioning device in a state before the multi-air mode is turned on when it is determined that the multi-air mode is turned off.

[0022] In other forms, the control method of the multi-air mode device for the vehicle air conditioner can further include, when it is determined that the multi-air mode is not turned on, the controller operating the air conditioning device in a state before the multi-air mode is turned on.

[0023] In one form, the control method of the multi-air mode device for the vehicle air conditioner can further include, when it is determined that the intensity of the air discharged from the air conditioning device is less than the first level, the controller maintaining the intensity of the air in a state before the first level.

[0024] In some forms of the disclosure, the control method of the multi-air mode device for the vehicle air conditioner can further include, when it is determined that the intensity of the air discharged from the air conditioning device is not manually selected, the controller maintaining the intensity of the air in a state of the second level.

[0025] In some forms of the present disclosure, a control method of a multi-air mode device for a vehicle air conditioner includes a driver turning on a power of an air conditioning device through an air conditioning device operation unit provided in a vehicle, a controller determining whether the driver has turned on an automatic mode through the air conditioning device operation unit, the controller operating the air conditioning device in the automatic mode when it is determined that the automatic mode is turned on, the controller determining whether an inside temperature of the vehicle has reached a first target temperature, the controller switching to a multi-air mode and discharging air to an inside of the vehicle from a multi-air duct, a ventilation duct, and a floor duct and reducing a strength of the air when it is determined that the inside temperature of the vehicle has reached the first target temperature, the controller determining whether the inside temperature of the vehicle has reached a second target temperature lower than the first target temperature, the controller discharging the air to the inside of the vehicle from only the multi-air duct and further reducing the strength of the air when it is determined that the inside temperature of the vehicle has reached the second target temperature, the controller determining whether the driver has turned off the automatic mode through the air conditioning device operation unit, and the controller turning off the automatic mode when it is determined that the automatic mode is turned off.

[0026] The control method of a multi-air mode device for a vehicle air conditioner according to another exemplary form of the present disclosure can further include the controller maintaining a manual mode when it is determined that the automatic mode is not turned on.

[0027] The control method of a multi-air mode device for a vehicle air conditioner according to another exemplary form of the present disclosure can further include the controller maintaining the automatic mode when it is determined that the automatic mode is not turned off.

[0028] The control method of a multi-air mode device for a vehicle air conditioner according to another exemplary form of the present disclosure can further include the controller operating the air conditioning device in a state in which the inside temperature of the vehicle reaches the first target temperature or a state in which the inside temperature of the vehicle does not reach the second target temperature when it is determined that the inside temperature of the vehicle does not reach the first target temperature or when it is determined that the inside temperature of the vehicle does not reach the second target temperature.

[0029] As described above, according to exemplary forms of the present disclosure, it is possible to provide air discharged through various air discharge units of an air conditioner of a vehicle and adjust an amount of air according to an inside condition of the vehicle to provide a comfortable inside environment of the vehicle.

[0030] In addition, by simultaneously providing the multi-air discharge hole on an extension line of the existing air discharge hole so that the multi-air discharge hole is not visible from a line of sight of an occupant when seated, the same effect as not forming an additional hole in design is obtained.

[0031] Other applications will become apparent from the description provided herein. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order for the disclosure to be better understood, various forms of the disclosure will now be described by way of example with reference to the accompanying drawings, in which:

[0033] Figure 1 is a view showing the appearance of the interior of a vehicle in which a multi-air mode device for a vehicle air conditioner according to an exemplary form of the disclosure is applied;

[0034] Figure 2 is a view showing a multi-air mode device for a vehicle air conditioner according to an exemplary form of the disclosure;

[0035] Figure 3 is a cross-sectional view taken along line A-A of Figure 2 ;

[0036] Figure 4 is a view showing an air conditioning device of a multi-air mode device for a vehicle air conditioner according to an exemplary form of the disclosure;

[0037] Figure 5 is a view showing a left-side discharge unit of a multi-air mode device for a vehicle air conditioner according to an exemplary form of the disclosure;

[0038] Figure 6 is a cross-sectional view taken along line B-B of Figure 5 ;

[0039] Figure 7 is a view showing a right-side discharge unit of a multi-air mode device for a vehicle air conditioner according to an exemplary form of the disclosure;

[0040] Figure 8 is a cross-sectional view taken along line C-C of Figure 7 ;

[0041] Figure 9 is a view showing a state in which a dome door is provided inside a duct unit of a multi-air mode device for a vehicle air conditioner according to an exemplary form of the disclosure;

[0042] Figure 10 is a view showing a dome door of a multi-air mode device for a vehicle air conditioner according to an exemplary form of the disclosure;

[0043] Figure 11 is a view showing a state in which a flat door is provided inside a duct unit of a multi-air mode device for a vehicle air conditioner according to an exemplary form of the disclosure;

[0044] Figure 12 is a view showing a flat door of a multi-air mode device for a vehicle air conditioner according to an exemplary form of the disclosure;

[0045] Figure 13 FIG. 1 is a flowchart illustrating a control method of a multi-air mode device for a vehicle air conditioner according to an exemplary form of the present disclosure; and

[0046] Figure 14 FIG. 2 is a flowchart illustrating a control method of a multi-air mode device for a vehicle air conditioner according to another form of the present disclosure.

[0047] The accompanying drawings described herein are for purposes of illustration only and are not intended to limit the scope of the present disclosure in any way.

[0048] <LEGEND>

[0049] 10: air conditioning device 20: duct unit

[0050] 22: defrosting duct 24: multi-air duct

[0051] 25: mat 26: ventilation duct

[0052] 27: dome door 28: floor duct

[0053] 29: flat door 30: multi-air discharge unit

[0054] 32: left side discharge unit 34: right side discharge unit

[0055] 33, 35: multi-air discharge hole 36: step portion

[0056] 40: operation unit DETAILED DESCRIPTION

[0057] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0058] Hereinafter, the present disclosure will be described more fully with reference to the accompanying drawings, in which exemplary forms thereof are shown. As those skilled in the art will understand, the described forms can be modified in various different ways without departing from the spirit or scope of the present disclosure.

[0059] Further, in the exemplary forms, since like reference numerals denote similar elements having the same configuration, the first exemplary form is representatively described, and in other exemplary forms, only the configuration different from the first exemplary form will be described.

[0060] The drawings are schematic and not drawn strictly to scale. Relative sizes and proportions of portions shown in the figures are shown exaggerated or reduced for clarity and convenience and are not necessarily drawn to scale with respect to one another. Also, like reference numerals demote like features throughout the figures. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present.

[0061] An exemplary form of the present disclosure details one exemplary form of the present disclosure. Accordingly, various modifications to the drawings will be desired. Thus, the exemplary form is not limited to the specific aspects of the regions shown and includes, for example, modifications to aspects by manufacturing.

[0062] Now, a multi-air mode device for a vehicle air conditioner according to an exemplary form of the present disclosure will be described with reference to the drawings.

[0063] Figure 1 is a view showing the appearance of the interior of a vehicle to which a multi-air mode device for a vehicle air conditioner according to an exemplary form of the present disclosure is applied, Figure 2 is a view showing a multi-air mode device for a vehicle air conditioner according to an exemplary form of the present disclosure, Figure 3 is a cross-sectional view taken along the line A-A of Figure 2 Figure 4 is a view showing an air conditioning device of a multi-air mode device for a vehicle air conditioner according to an exemplary form of the present disclosure.

[0064] Referring to Figure 1 and Figure 2 , a multi-air mode device for a vehicle air conditioner according to an exemplary form of the present disclosure includes an air conditioning device (HVAC), an air duct unit, and a multi-air discharge unit.

[0065] The air conditioning device (HVAC) 10 provides air to the interior of a vehicle and is a device required to achieve an air conditioning purpose, and includes a heat source device such as a heater and a chiller, a heat transfer device such as a blower, a pump, a duct, a pipe, an outlet, an inlet, a radiator, etc., and a terminal device, and a controller that performs an operation to enable these devices to satisfy air conditioning conditions, etc. The air supplied by the air conditioning device to the interior of a vehicle is used for cooling and heating, humidity control, and removal of harmful gases / dust of the interior of a vehicle.

[0066] The air duct unit 20 communicates with the air conditioning device 10 and is provided to deliver air supplied from the air conditioning device 10 to the interior of a vehicle or discharge to the outside. As Figure 3 ​As shown, the duct unit 20 can include a defrost duct 22 to deliver air for removing frost from the interior of the vehicle, a multi-duct 24 to deliver air for cooling and heating to the interior of the vehicle through a multi-duct discharge unit 30, and a ventilation duct 26 to discharge air from the interior of the vehicle to the outside.

[0067] As Figure 4 shown, the air conditioning device 10 includes a defrost discharge hole 12, a multi-duct discharge hole 14, and a ventilation hole 16, and the defrost duct 22, the multi-duct 24, and the ventilation duct 26 of the duct unit 20 are in communication with the defrost discharge hole 12, the multi-duct discharge hole 14, and the ventilation hole 16, respectively. Air supplied from the air conditioning device 10 is supplied to the interior of the room through the defrost discharge hole 12, the multi-duct discharge hole 14, and the ventilation hole 16, respectively, and through the defrost duct 22, the multi-duct 24, and the ventilation duct 26, respectively, according to its purpose. The floor discharge hole 18 to deliver air to the floor surface of the interior of the vehicle is further provided in the air conditioning device 10, and the floor discharge hole 18 is in communication with the floor duct 28 that can be further provided in the duct unit 20 to supply air to the floor surface of the interior of the vehicle.

[0068] Meanwhile, the multi-duct 24 can be pressure-sealed with the multi-duct discharge hole 14 of the air conditioning device 10 with a gasket 25 made of a rubber material.

[0069] Air generated in the air conditioning device 10 is discharged to the interior of the vehicle through the duct unit 20 and the multi-duct discharge unit 30. As Figure 1 shown, the multi-duct discharge unit 30 includes a left side discharge unit 32 through which air is discharged toward the driver's seat of the interior of the vehicle and a right side discharge unit 34 through which air is discharged toward the co-driver's seat of the interior of the vehicle.

[0070] In the existing interior of the vehicle, only the air vents 2, 4, and 6 at the left side of the driver's seat, the center of the vehicle, and the right side of the co-driver's seat are provided. In addition to the existing air vents 2, 4, and 6, the multi-duct discharge unit 30 according to the exemplary form of the present disclosure is further provided at the driver's seat and the co-driver's seat. As Figure 1 shown, the multi-duct discharge unit 30 can be provided at the right side of the driver's seat and at the center of the co-driver's seat.

[0071] Figure 5 is a view showing a left side discharge unit of a multi-duct mode device for a vehicle air conditioner according to an exemplary form of the present disclosure, Figure 6 is a cross-sectional view taken along the line B-B of Figure 5 .

[0072] As Figure 5 and Figure 6As shown, the left-side discharge unit 32 is disposed at the right side of the driver's seat, and is formed with a meshed multi-air discharge hole 33. The radius of the multi-air discharge hole 33 can be about 3 mm or more and about 4 mm or less. In addition, the multi-air discharge unit 30 can be formed in a multi-layer structure having a stepped portion 36, and can be formed of a plastic material. By forming the diameter of the multi-air discharge hole 33 to be about 3 mm or more and forming the multi-air discharge hole 33 of a plastic material, it is possible to prevent and reduce the phenomenon of condensation water being formed in the multi-air discharge hole 33 due to the internal temperature difference of the vehicle, and to secure an air volume and an air speed of an amount or more. In addition, the multi-air discharge hole 33 can be configured so as not to be seen from the driver's line of sight when the driver sits on the driver's seat. The multi-air discharge hole 33 is disposed on the extension line of the existing discharge hole, and has the same effect as not forming an additional multi-air discharge hole in design.

[0073] Figure 7 is a view showing a right-side discharge unit of a multi-air mode device for a vehicle air conditioner according to an exemplary form of the present disclosure, Figure 8 is a view taken along Figure 7 line C-C of FIG. 4.

[0074] As shown in Figure 7 and Figure 8 , the right-side discharge unit 34 can be disposed at the center of the co-driver's seat. Similar to the left-side discharge unit 32, the right-side discharge unit 34 is formed with a meshed multi-air discharge hole 35 having a radius of about 3 mm or more and about 4 mm or less. In addition, the multi-air discharge unit 30 can be formed in a multi-layer structure having a stepped portion 36, and can be formed of a plastic material.

[0075] The left-side discharge unit 32 and the right-side discharge unit 34 can have a concave shape, and then the multi-air discharge holes 33 and 35 are formed on the surface of the respective shapes. The surface area in which the multi-air discharge hole 35 is formed can be divided into an upper portion and a lower portion by the stepped portion 36. In the lower portion of the surface area divided by the stepped portion 36, the multi-air discharge hole 35 can be formed in a shape open toward the floor surface of the vehicle interior. Since the multi-air discharge unit 30 is naturally curved by the inclination, it is possible to prevent the multi-air discharge hole 35 from being seen from the line of sight of the occupant when sitting on the driver's seat and the co-driver's seat.

[0076] Figure 9 is a view showing a state in which a dome door is provided inside a duct unit of a multi-air mode device for a vehicle air conditioner according to an exemplary form of the present disclosure, Figure 10 is a view showing a dome door of a multi-air mode device for a vehicle air conditioner according to an exemplary form of the present disclosure. In addition, Figure 11 is a view showing a state in which a flat door is provided inside a duct unit of a multi-air mode device for a vehicle air conditioner according to an exemplary form of the present disclosure,Figure 12 This is a view of a flat door illustrating a multi-wind mode device for vehicle air conditioning according to an exemplary form of this disclosure.

[0077] Reference Figures 9 to 12 The duct unit 20 may include a dome door 27 or a flat door 29. The dome door 27 or the flat door 29 is disposed inside between the air conditioning unit 10 and the duct unit 20, and can be switched so that the air supplied from the air conditioning unit 10 is connected to the defrost duct 22, the multi-air duct 24 and the ventilation duct 26 respectively.

[0078] Figure 9 and Figure 10 The dome door 27 shown may have a fan-shaped cross-section, and multiple openings are formed on its curved surface to connect to the defrost duct 22, the multi-air duct 24, and the ventilation duct 26, respectively. Furthermore, each of the openings is equipped with a shielding plate that rotates about two axes of the dome door 27. Depending on the rotation of the shielding plate, the defrost duct 22, the multi-air duct 24, and the ventilation duct 26 can be connected to the openings, respectively.

[0079] Figure 11 and Figure 12 The flat door 29 shown can be multiple. The flat door 29 can be respectively installed between the air conditioning unit 10 and the defrosting duct 22, between the air conditioning unit 10 and the multi-air duct 24, and between the air conditioning unit 10 and the ventilation duct 26. The flat door 29 can be formed in the shape of a square plate and can be configured to close or open the defrosting duct 22, the multi-air duct 24, and the ventilation duct 26 by rotating about two axes of the square plate.

[0080] Figure 13 This is a flowchart illustrating a control method for a multi-wind mode device for vehicle air conditioning according to an exemplary form of this disclosure.

[0081] Reference Figure 13 The driver turns on the power to the air conditioning unit via the air conditioning unit operation unit 40 installed in the vehicle (S101).

[0082] Subsequently, the controller determines whether the driver has activated the multi-fan mode via the air conditioning unit 40 (S102). Figure 1 As shown, a multi-wind mode button (DIFFUSE button) 42 is provided on the air conditioning unit operation unit 40, and when the driver wants to use the multi-wind mode, he turns on the A / C button and turns on the DIFFUSE button 42.

[0083] In this case, the controller may be implemented by one or more processors that operate according to a setting program, and the setting program may be programmed to execute each step of a control method for a multi-wind mode device for vehicle air conditioning according to a form of the present disclosure.

[0084] When it is judged that the multi-air mode is opened, the controller operates the air conditioning device in the multi-air mode (S103).

[0085] When it is judged that the multi-air mode is not opened, the controller operates the air conditioning device in the state before the multi-air mode is opened (S110).

[0086] Thereafter, the controller judges whether the intensity of air discharged from the air conditioning device is equal to or greater than a first level (S104). In this case, the first level can be, for example, 4 levels out of 8 levels.

[0087] When it is judged that the intensity of air discharged from the air conditioning device is equal to or greater than the first level, the controller can automatically adjust the intensity of air to a second level less than the first level (S105). In this case, the second level can be, for example, 3 levels out of 8 levels.

[0088] When it is judged that the intensity of air supplied from the air conditioning device is less than the first level, the controller maintains the intensity of air in the state before the first level (S110).

[0089] Thereafter, the controller judges whether the intensity of air discharged from the air conditioning device is manually selected (S106). When the driver manually selects the intensity of air through the air conditioning device operation unit 40, the automatic adjustment of the intensity of air is turned off, and is operated in the corresponding manually selected level selected by the driver (S107).

[0090] When it is judged that the intensity of air supplied from the air conditioning device is not manually selected, the controller maintains the intensity of air of the second level (S110).

[0091] Thereafter, the controller judges whether the driver has turned off the multi-air mode through the air conditioning device operation unit 40 (S108). When the driver selects the OFF button through the air conditioning device operation unit 40, the multi-air mode is turned off. Alternatively, it can be set to turn off the multi-air mode when the driver presses the DIFFUSE button again.

[0092] When it is judged that the multi-air mode is turned off, the controller operates the air conditioning device in the state before the multi-air mode is opened (S109).

[0093] When it is judged that the multi-air mode is not turned off, the previous multi-air mode is maintained (S110).

[0094] Figure 14 FIG. 1 is a flowchart illustrating a control method of a multi-air mode device for a vehicle air conditioner according to another form of the present disclosure.

[0095] Referring to Figure 14The driver turns on the power of the air conditioning device through the air conditioning device operation unit 40 provided in the vehicle (S201).

[0096] Thereafter, the controller determines whether the driver has turned on the automatic mode through the air conditioning device operation unit 40 (S202). As shown in the air conditioning device operation unit 40, an automatic mode button (AUTO button) is provided, and when the driver wants to use the automatic mode, the A / C button is turned on, and the AUTO button is turned on. Figure 1

[0097] When it is determined that the automatic mode is turned on, the controller operates the air conditioning device in the automatic mode (S203).

[0098] When it is determined that the automatic mode is not turned on, the controller operates the air conditioning device in the state before the automatic mode is turned on (S210).

[0099] Thereafter, the controller determines whether the inside temperature of the vehicle has reached a first target temperature (S204). When it is determined that the inside temperature of the vehicle has reached the first target temperature, the controller controls to switch to the multi-air mode, and air is discharged to the inside of the vehicle from the multi-air duct, the ventilation duct, and the floor duct and the intensity of the air is reduced to a certain level (S205).

[0100] Thereafter, the controller determines whether the inside temperature of the vehicle has reached a second target temperature lower than the first target temperature (S206).

[0101] When it is determined that the inside temperature of the vehicle has reached the second target temperature, the controller discharges air to the inside of the vehicle only from the multi-air duct and further reduces the intensity of the air (S207).

[0102] When it is determined that the inside temperature of the vehicle has not reached the second target temperature, the previous state is maintained (S210).

[0103] Thereafter, the controller determines whether the driver has turned off the automatic mode through the air conditioning device operation unit 40 (S208). When the driver selects the OFF button through the air conditioning device operation unit 40, the automatic mode is turned off. Alternatively, it can be set to turn off the automatic mode when the driver presses the AUTO button again.

[0104] When it is determined that the automatic mode is turned off, the controller turns off the automatic mode (S209), and when it is determined that the automatic mode is not turned off, the previous automatic mode state is maintained (S210).

[0105] ​As such, according to an exemplary form of the present disclosure, it is possible to provide a comfortable vehicle interior environment by discharging air through various air discharge units of an air conditioner of a vehicle interior and adjusting the amount of air according to the interior condition of the vehicle.

[0106] While the present disclosure has been described in connection with the exemplary forms thereof that are currently believed to be practical as exemplified, it is to be understood that the present disclosure is not limited to the disclosed forms. On the contrary, it is intended to cover various modifications and equivalent arrangements.

Claims

1. A multi-air mode device for a vehicle air conditioner, comprising: an air conditioning device provided in a vehicle and supplying air to an inside of the vehicle; an air duct unit communicating with the air conditioning device and delivering air supplied from the air conditioning device to the inside of the vehicle or discharging air to the outside of the vehicle; and a multi-air discharge unit supplying air delivered from the air duct unit to the inside of the vehicle, wherein the air duct unit comprises: a defrost duct delivering air for removing frost from the inside of the vehicle; a multi-air duct delivering air for cooling and heating to the inside of the vehicle through the multi-air discharge unit; a ventilation duct discharging air from the inside of the vehicle to the outside of the vehicle; and a dome door provided between the air conditioning device and the air duct unit and enabling air supplied from the air conditioning device to be in fluid communication with the defrost duct, the multi-air duct and the ventilation duct, respectively, and a cross section of the dome door is a sector, a plurality of openings are formed on a curved surface to be in communication with the defrost duct, the multi-air duct and the ventilation duct, respectively, the plurality of openings are provided with a shutter rotating about two axes of the dome door, and the defrost duct, the multi-air duct and the ventilation duct are communicated with the openings, respectively, according to rotation of the shutter. 2.The device according to claim 1, wherein the air duct unit further comprises: a floor duct delivering air for heating and cooling to a floor surface of the inside of the vehicle. 3.The device according to claim 1, wherein the multi-air discharge unit comprises: a left side discharge unit through which air is discharged toward a driver seat of the inside of the vehicle; and a right side discharge unit through which air is discharged toward a co-driver seat of the inside of the vehicle. 4.The device according to claim 1, wherein the multi-air discharge unit comprises a meshed multi-air discharge hole. 5.The device according to claim 4, wherein the meshed multi-air discharge hole is formed to be invisible from a line of sight of an occupant when seated on the driver seat and the co-driver seat of the vehicle. 6.The device according to claim 1, wherein the multi-air discharge unit has a multi-layer structure having a stepped portion. 7.The device according to claim 1, wherein the air conditioning device and the multi-air duct are press-sealed to each other by a rubber pad. 8.A control method of a multi-air mode device for a vehicle air conditioner according to claim 1, comprising: a driver turning on a power of an air conditioning device by an air conditioning device operation unit provided in a vehicle; a controller determining whether the driver has turned on a multi-air mode by the air conditioning device operation unit; in response to determining to turn on the multi-air mode, the controller operating the air conditioning device in the multi-air mode; the controller determining whether an intensity of air discharged from the air conditioning device is equal to or greater than a first level; and the controller determining whether the intensity of air discharged from the air conditioning device is equal to or greater than a second level. ​ In response to determining that the intensity of air discharged from the air conditioning device is equal to or greater than the first level, the controller automatically adjusts the intensity of air to a second level that is less than the first level.

9. The method according to claim 8, further comprising: after automatically adjusting the intensity of air to the second level, the controller determines whether the intensity of air discharged from the air conditioning device has been manually selected; in response to determining that the intensity of air discharged from the air conditioning device has been manually selected, operating in a manually selected level; the controller determines whether the driver has turned off the multi-vent mode through the air conditioning device operation unit; and in response to determining that the driver has turned off the multi-vent mode, the controller operates the air conditioning device in a state before the multi-vent mode was turned on.

10. The method according to claim 8, further comprising: in response to determining that the multi-vent mode has not been turned on, the controller operates the air conditioning device in a state before the multi-vent mode was turned on.

11. The method according to claim 8, further comprising: in response to determining that the intensity of air discharged from the air conditioning device is less than the first level, the controller maintains the intensity of air in a state before the first level.

12. The method according to claim 9, further comprising: in response to determining that the intensity of air discharged from the air conditioning device has not been manually selected, the controller maintains the intensity of air in a state of the second level.

13. A control method for a multi-vent mode device for a vehicle air conditioner according to claim 1, comprising: a driver turning on a power of an air conditioning device using an air conditioning device operation unit provided in a vehicle; a controller determining whether the driver has turned on an automatic mode through the air conditioning device operation unit; in response to determining that the automatic mode is turned on, the controller operates the air conditioning device in the automatic mode; the controller determining whether an internal temperature of the vehicle has reached a first target temperature; in response to determining that the internal temperature has reached the first target temperature, the controller switches to a multi-vent mode and discharges air to the inside of the vehicle from a multi-vent duct, a ventilation duct, and a floor duct and reduces the intensity of air; the controller determining whether the internal temperature has reached a second target temperature that is lower than the first target temperature; in response to determining that the internal temperature has reached the second target temperature, the controller discharges air to the inside of the vehicle from only the multi-vent duct and further reduces the intensity of air; the controller determining whether the driver has turned off the automatic mode through the air conditioning device operation unit; and in response to determining that the automatic mode is turned off, the controller turns off the automatic mode.

14. The method according to claim 13, further comprising: in response to determining that the automatic mode has not been turned on, the controller maintains a manual mode.

15. The method according to claim 13, further comprising: ​ In response to determining that the automatic mode is not closed, the controller maintains the automatic mode.

16. The method according to claim 13, further comprising: In response to determining that the interior temperature of the vehicle does not reach the first target temperature or the interior temperature does not reach the second target temperature, the controller operates the air conditioning device in a state before the interior temperature reaches the first target temperature or a state where the interior temperature does not reach the second target temperature.

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