Air conditioning device for vehicle and control method thereof

Abstract

The present invention provides an air conditioning device for a vehicle and a control method thereof. The air conditioning device includes: a touch input unit configured to be dragged by a user to rotate 360 ​​degrees after being touched; a touch sensor unit including three channel areas formed by dividing a 360-degree rotation area into three parts, and configured to recognize capacitance according to touch areas of a first channel, a second channel, and a third channel at predetermined positions in the three channel areas; and three channel signal output units outputting signals from respective channels according to the recognized capacitance.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Korean Patent Application No. 10-2019-0041370, filed on Apr. 9, 2019, which is hereby incorporated by reference in its entirety. Technical Field

[0003] The present invention relates to a vehicle air conditioning device and a control method thereof, and more particularly, to a vehicle air conditioning device and a control method thereof, wherein a touch area configured to be dragged by a user to rotate 360 ​​degrees is divided into three parts to output three channel signals based on the touch area. Background Art

[0004] Generally, for an air conditioner installed in a vehicle, the driver operates the setting of the vehicle interior temperature, the control of the exhaust direction or the exhaust amount of cold air, the control of the recirculation mode or the fresh air mode. When the vehicle is stopped, the driver operates the air conditioner or performs a simple operation, or sometimes a person sitting in the passenger seat operates the air conditioner while the vehicle is running.

[0005] Since the driver may affect the driving operation when operating the air conditioner while the vehicle is traveling at a predetermined speed or higher, a technology capable of operating the air conditioner without affecting the driving operation is required. When the area division method of dividing the drag touch area in steps according to the prior art is applied to the control panel of the vehicle air conditioner, it is difficult to perform precise operations at intervals of 0.5, and the number of touch sensor integrated circuits (ICs) increases due to the increase in the number of signals. Summary of the invention

[0006] The present invention provides an air conditioning device installed in a vehicle and a control method thereof, in which a touch area of ​​a temperature / air flow regulating unit configured to be touched and dragged by a user to rotate 360 ​​degrees is divided into three parts to output three channel signals based on the touch area, so that the drag adjustment angle can be freely adjusted and the number of touch integrated circuits can be reduced.

[0007] The technical problems to be solved by the present disclosure are not limited to the above-mentioned technical problems, and those skilled in the art to which the present disclosure belongs can clearly understand other technical problems not mentioned above from the following description.

[0008] An exemplary embodiment of the present invention provides an air conditioning device for a vehicle, which may include: a touch input unit configured to be dragged to rotate 360 ​​degrees after being touched by a user; a touch sensor unit including three channel areas formed by dividing a 360-degree rotation area into three parts, and configured to identify capacitance according to touch areas of a first channel, a second channel, and a third channel at predetermined positions in the three channel areas; and three channel signal output units configured to output signals from each channel according to the identified capacitance.

[0009] Each of the three channel areas formed by dividing the 360-degree rotation area into three parts can be implemented in the form of a hook, which includes a rotation area that only recognizes one channel. The three channel signal output units can be connected to a printed circuit board (PCB) together with two grounding components. The recognized capacitance can be converted into a value of about 0 to 255, and the value can be transmitted to the controller of the vehicle air conditioning device. The touch sensor unit can be configured to form a predetermined gap at the boundary portion between the three channel areas. Signals can be output from each channel in proportion to the touch area of ​​the first channel, the second channel, and the third channel.

[0010] Another exemplary embodiment of the present invention provides an operating method for an air conditioning device for a vehicle, which may include: storing a predetermined temperature; storing a currently set temperature; receiving a user touch operation; determining whether a drag operation is performed on a touch operation unit after the user touch operation; in response to determining that the user has performed the drag operation, determining whether the drag operation is performed in a temperature increasing direction; in response to determining that the drag operation is performed in the temperature increasing direction, determining whether the current temperature is set to a lowest temperature LO, and when the current temperature is set to the lowest temperature LO, changing the temperature to a predetermined temperature, and when the current temperature is not set to the lowest temperature LO, changing the temperature to a highest temperature HI; in response to determining that the drag operation is not performed in the temperature increasing direction, determining whether the current temperature is set to a highest temperature HI, and when the current temperature is set to the highest temperature HI, changing the temperature to a predetermined temperature, and when the current temperature is not set to the highest temperature HI, changing the temperature to the lowest temperature LO.

[0011] The method may further include: in response to determining that no drag operation is performed in determining whether the user performs a drag operation after the touch operation, determining whether the user's touch operation is a touch operation for heating up; when the user's touch operation is a touch operation for heating up, increasing the temperature by 0.5°C; and when the user's touch operation is not a touch operation for heating up, decreasing the temperature by 0.5°C.

[0012] Yet another exemplary embodiment of the present invention provides a control method for an air conditioning device for a vehicle, which may include: storing a currently set temperature; receiving a user touch operation; determining whether the user has performed a drag operation after the touch operation; in response to determining that the user has performed the drag operation, determining whether the drag operation has been performed in a temperature increasing direction; in response to determining that the drag operation has been performed in the temperature increasing direction, determining whether the current temperature is set to a maximum temperature HI, and when the current temperature is set to the maximum temperature HI, maintaining the maximum temperature HI, and when the current temperature is not set to the maximum temperature HI, increasing the temperature by 0.5°C; and in response to determining that the drag operation has not been performed in the temperature increasing direction, determining whether the current temperature is set to a minimum temperature LO, and when the current temperature is set to the minimum temperature LO, maintaining the minimum temperature LO, and when the current temperature is not set to the minimum temperature LO, reducing the temperature by 0.5°C.

[0013] The method may further include determining whether the user touch operation is stopped after increasing the temperature by 0.5° C. and decreasing the temperature by 0.5° C.; and when the user touch operation is not stopped, returning the process to determining whether a drag operation is performed after the touch operation.

[0014] The method may further include: in response to determining that no drag operation is performed in determining whether the user performs a drag operation after the touch operation, determining whether the user's touch operation is a touch operation for heating up; when the user's touch operation is a touch operation for heating up, increasing the temperature by 0.5°C; and when the user's touch operation is not a touch operation for heating up, decreasing the temperature by 0.5°C.

[0015] Effects of the air conditioning apparatus for a vehicle and the control method thereof according to the present invention will be described below.

[0016] First, the area division method in the prior art requires five touch ICs, but in the present invention, the 360-degree area is divided into three parts to differently set the areas of the three channels, so the number of touch ICs can be reduced to three compared with the prior art.

[0017] Second, according to the drag touch technology of the present invention, the drag adjustment angle can be freely adjusted.

[0018] Effects obtained by the present disclosure are not limited to the above-mentioned effects, and other effects not mentioned above will be clearly understood by those skilled in the art from the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following drawings are provided to help understand the present invention, and exemplary embodiments of the present invention are provided together with a detailed description. However, the technical features of the present invention are not limited to specific drawings, and the features shown in the various drawings can be combined to constitute new exemplary embodiments.

[0020] Figure 1 is a view showing a control panel of a vehicle air conditioner in the prior art, in which a drag touch area of ​​the control panel of the vehicle air conditioner is divided in steps;

[0021] Figure 2 is a view showing the shape of a control panel of an air conditioning apparatus for a vehicle according to an exemplary embodiment of the present invention;

[0022] Figure 3A and Figure 3B is a diagram showing an exemplary embodiment according to the present invention Figure 2 A schematic diagram of a touch operation and a drag operation performed on a temperature / air flow adjustment unit of a control panel shown;

[0023] Figure 4A is a schematic diagram showing a connection relationship between a PCB and a control panel of an air conditioning device for a vehicle according to an exemplary embodiment of the present invention;

[0024] Figure 4B is a detailed configuration diagram showing a state in which a 360-degree area of ​​a touch sensor unit of an air conditioning apparatus for a vehicle according to an exemplary embodiment of the present invention is divided into three parts to differently set areas of three channels;

[0025] Figure 4C is a diagram showing an exemplary embodiment according to the present invention. Figure 4B A graph showing the position of a finger on the touch sensor unit and the output signal values ​​of each channel;

[0026] Figure 5A It is a reference Figure 4B The detailed configuration diagram shown shows a configuration diagram of a finger touch portion according to an exemplary embodiment of the present invention;

[0027] Figure 5B is a diagram showing an exemplary embodiment according to the present invention Figure 5A An enlarged view of the portion touched by the finger is shown;

[0028] Figure 5C is a diagram showing an exemplary embodiment according to the present invention. Figure 5A A graph showing the position of a finger on the touch sensor unit and the output signal values ​​of each channel;

[0029] Figure 5D FIG. 2 is a diagram showing a method of recognizing a finger position according to an exemplary embodiment of the present invention. Figure 5A and Figure 5B The configuration diagram of the portion where the finger touches the portion shown;

[0030] FIG. 6A to FIG. 6Mis a schematic diagram showing a shape of a touch sensor unit divided into three parts according to an exemplary embodiment of the present invention;

[0031] Fig. 7A is a view showing a configuration of a touch IC to which a technology in the related art is applied;

[0032] Figure 7B is a view showing a configuration of a touch IC to which a technology according to an exemplary embodiment of the present invention is applied;

[0033] Figure 8 is a flowchart for explaining a three-step control method of a vehicle air conditioning device according to an exemplary embodiment of the present invention; and

[0034] Fig. 9 is a flowchart for explaining a control method of the air conditioning apparatus for a vehicle according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0035] It is understood that the term "vehicle" or "vehicular" or other similar terms as used herein generally include motor vehicles, such as passenger vehicles including sport utility vehicles (SUVs), buses, trucks, various commercial vehicles, water craft including various ships and vessels, aircraft, etc., and include hybrid vehicles, electric vehicles, internal combustion vehicles, plug-in hybrid vehicles, hydrogen-powered vehicles, and other alternative fuel (e.g., fuels derived from resources other than petroleum) vehicles.

[0036] Although the exemplary embodiments are described as using multiple units to perform the exemplary processes, it is understood that the exemplary processes can also be performed by one or more modules. In addition, it is understood that the term controller / control unit refers to a hardware device including a memory and a processor. The memory is configured to store the modules, and the processor is specifically configured to execute the modules to perform one or more processes further described below.

[0037] In addition, the control logic of the present invention may be implemented as a non-transitory computer-readable medium on a computer-readable medium containing executable program instructions executed by a processor, a controller / control unit, etc. Examples of computer-readable media include, but are not limited to, ROM, RAM, compact disk (CD)-ROM, magnetic tape, floppy disk, flash drive, smart card, and optical data storage device. The computer-readable recording medium may also be distributed in a networked computer system so that the computer-readable medium is stored and executed in a distributed manner, for example, by a telematics server or a controller area network (CAN).

[0038] The terms used herein are only used to describe specific embodiments and are not intended to limit the present invention. Unless the context clearly indicates otherwise, as used herein, the singular forms "one", "an" and "the" are intended to also include plural forms. It will be further understood that the terms "include" and / or "comprise" when used in this specification specify the presence of the features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. As used herein, the term "and / or" includes any one and all combinations of one or more related listed items.

[0039] Unless otherwise specified or apparent from the context, as used herein, the term "about" is understood to be within the normal tolerance range in the art, such as within 2 standard deviations of the mean. "About" may be understood to be within 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, 0.5%, 0.1%, 0.05%, or 0.01% of the stated value. Unless the context indicates otherwise, all numerical values ​​provided herein are modified by the term "about".

[0040] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the exemplary embodiments. The same reference numerals shown in the various drawings refer to components that perform substantially the same functions.

[0041] According to the following description, the purpose and effect of the present invention can be naturally understood, or the purpose and effect of the present invention can be made clearer, and the purpose and effect of the present invention are not limited to the following description. In addition, in the description of the present invention, when it is determined that the specific description of the known technology related to the present invention may unnecessarily obscure the subject of the present invention, the specific description will be omitted.

[0042] Figure 1 1 is a view showing a control panel of a vehicle air conditioner in the related art, in which a drag touch area of ​​the control panel of the vehicle air conditioner is divided into steps.

[0043] Figure 1 , the drag touch area of ​​each of the adjustment units provided on the left side 110 and the right side 120 of the display panel is divided into four areas in steps. With this area division method, there is a disadvantage in that the number of signals increases, and thus the number of touch ICs increases.

[0044] Figure 2 2 is a view showing the shape of a control panel of an air conditioning device for a vehicle according to an exemplary embodiment of the present invention. Figure 2 , components to which the drag touch technology according to an exemplary embodiment of the present invention is applied are the temperature / air flow adjustment units provided on the left and right sides, respectively.

[0045] in this regard, Figure 3A and Figure 3B It is shown Figure 2 Schematic diagram of touch and drag operations performed on the temperature / air flow adjustment unit of the control panel shown. Figure 3A is a schematic diagram showing a touch operation, and can be performed by touching Figure 3A The temperature can be lowered by 0.5°C by touching the predetermined portion of the left cooling area 310 shown. Figure 3A The temperature of the predetermined portion of the right temperature increasing area 320 is increased by 0.5°C.

[0046] at the same time, Figure 3B is a schematic diagram showing a touch operation and a drag operation, and Figure 3B The predetermined portion of the left cooling area 330 shown in FIG. 1 is then dragged in the direction of the arrow to reduce the temperature to the lowest temperature LO. In addition, the temperature can be reduced to the lowest temperature LO by touching Figure 3B A predetermined portion of the right temperature rising area 340 is drawn, and then the predetermined portion is dragged in the arrow direction to raise the temperature to the maximum temperature HI.

[0047] According to an exemplary embodiment of the present invention, the set temperature of the air conditioning device is in the range of 17.5°C to 31.5°C, wherein when the set temperature of 17.5°C is reduced by one level, the lowest temperature LO is displayed, and when the set temperature of 31.5°C is increased by one level, the highest temperature HI is displayed.

[0048] According to another exemplary embodiment of the present invention, the set temperature of the air conditioning device is in the range of 17.5°C to 26.5°C, wherein when the set temperature of 17.5°C is reduced by one level, the lowest temperature LO is displayed, and when the set temperature of 26.5°C is increased by one level, the highest temperature HI is displayed.

[0049] Figure 4A 2 is a schematic diagram showing a connection relationship between a PCB and a control panel of a vehicle air conditioning device according to an exemplary embodiment of the present invention. Figure 4A As shown, in the vehicle air conditioning device according to an exemplary embodiment of the present invention, components 410 and 420 may be connected to a printed circuit board (PCB), wherein signals are output from the temperature / air flow adjustment units located on the left and right sides of the control panel through the components 410 and 420. The temperature / air flow adjustment unit according to the present invention may include a touch sensor unit, and Figure 4B Its detailed configuration is shown in FIG.

[0050] Figure 4BDetailed configuration diagram showing a state in which a 360-degree area of ​​a touch sensor unit of a vehicle air conditioning device according to an exemplary embodiment of the present invention is divided into three parts to differently set areas of three channels Ch1, Ch2, and Ch3. Figure 4B , the touch sensor unit is configured such that a 360-degree area is divided into three channels, ie, areas of a first channel Ch1, a second channel Ch2, and a third channel Ch3.

[0051] More specifically, if Figure 4B As shown, each channel area can have a maximum sensor area at a predetermined rotation interval (e.g., an interval of about 4.00 mm), and can be formed into a hook shape so that the sensor area of ​​the channel gradually decreases in a clockwise rotation direction or a counterclockwise rotation direction. A predetermined gap (e.g., about 0.3 mm) can be formed between the channel areas. The signal output unit that outputs signals from the three channel areas is designed to have three lines, one line for each channel area, and the signal output unit with three channels Ch1, Ch2 and Ch3 is connected to a printed circuit board (PCB) together with two grounding components GND.

[0052] Figure 4C It shows that according to Figure 4B FIG. 1 is a graph showing the finger position on the touch sensor unit and the output signal values ​​of each channel. Figure 4C The graph shown shows that when the finger is located at a predetermined rotation interval (e.g., an interval of about 4.00 mm) where the channel area has the largest sensor area, the signal value of the channel is the largest, and as the finger position deviates from the predetermined rotation interval, the signal value gradually decreases. As described above, when the user's finger is located at a predetermined position, the capacitance can be identified based on the sensor area of ​​each channel at each position, the capacitance can be converted into a value of, for example, about 0 to 255, and the value can be transmitted to the controller of the air conditioning device.

[0053] Figure 5A It is a reference Figure 4B The detailed configuration diagram shown shows a configuration diagram of a finger touch portion according to an exemplary embodiment of the present invention, Figure 5B It is shown Figure 5A An enlarged view of the portion touched by the finger is shown. Figure 5A Show Figure 4B The finger touches the portion 510 on the touch sensor unit shown. Figure 5B , the signal from the second channel Ch2 detected in proportion to the finger touch area, that is, the capacitance of the sensor area 511 of the second channel can be, for example, 5, and the signal from the first channel Ch1 detected in proportion to the finger touch area, that is, the capacitance of the sensor area 512 of the first channel can be, for example, 10.

[0054] in this regard, Figure 5C It shows that according to Figure 5A FIG. 1 is a graph showing the position of a finger on a touch sensor unit and the output signal value of each channel. Figure 5C For example, a point where the signal value of the first channel Ch1 is 10 and the signal value of the second channel Ch2 is 5, that is, a point rotated about 90 degrees from the position of 0 degrees in the rotation area of ​​360 degrees is the position touched by the finger. Figure 5D As shown, the finger touch position may be detected as a point 520 rotated about 90 degrees from a position of 0 degrees.

[0055] FIG. 6A to FIG. 6M 2 is a schematic diagram showing a touch sensor unit according to an exemplary embodiment of the present invention divided into three parts. FIG. 6A to FIG. 6M As shown, the division of the touch sensor unit into three partial channel areas can be implemented in various forms, and its form is not limited to FIG. 6A to FIG. 6M The form shown.

[0056] Fig. 7A is a view showing a configuration of a touch IC to which a technology in the related art is applied, Figure 7B 1 is a diagram showing a configuration of a touch IC to which the technology according to an exemplary embodiment of the present invention is applied. In particular, compared with the number of output signals when one line is provided for each channel area as taught by the present invention, in the area division method in the prior art, that is, in the case of Figure 1 In the area division method shown in which the drag touch area is divided in steps, the number of output signals is larger.

[0057] For example, you can Figure 1 The left temperature / air flow control unit 110 shown outputs 32 signals 720. As a result, Fig. 7A As shown, the number of touch ICs 711, 712, 713, 714, and 715 increases. However, when the drag touch technology according to the exemplary embodiment of the present invention is applied, the number of signals is less than that of the technology in the prior art. For example, Figure 4B The touch sensor unit shown outputs five signals (i.e., Ch1, Ch2, Ch3 and two GNDs) 720. As a result, Figure 7B As shown, the number of touch ICs 721 and 722 can be reduced, and the drag adjustment angle can be freely adjusted.

[0058] Figure 8 1 is a flow chart showing a three-step control method of a vehicle air conditioning device according to an exemplary embodiment of the present invention. The three-step control method will be described below for each step. The method discussed below may be performed by a controller.

[0059] First, in step S810, a predetermined temperature may be stored in a vehicle air conditioning device including a touch operation unit configured to be dragged by a user to rotate 360 ​​degrees. Thereafter, in step S820, the vehicle air conditioning device may be configured to store the current set temperature. In step S830, a touch operation of the user may be input, and then in step S840, it may be determined whether the user performs a drag operation after the touch operation. In response to determining that the user performs a drag operation according to the determination result in step S840, the process proceeds to step S860, and it may be determined whether the drag operation is performed in the temperature increase direction.

[0060] In response to determining that the drag operation is performed in the temperature increasing direction according to the determination result in step S860, in step S870, it can be determined whether the current temperature is set to the lowest temperature LO. When the current temperature is set to the lowest temperature LO, in step S872, the temperature can be changed to the predetermined temperature in step S810, and when the current temperature is not set to the lowest temperature LO (for example, set to be greater than LO), the temperature can be changed to the highest temperature HI in step S871.

[0061] In response to determining that the drag operation is not performed in the temperature increase direction according to the determination result in step S860, in step S880, it can be determined whether the current temperature is set to the highest temperature HI. When the current temperature is set to the highest temperature HI, in step S882, the temperature can be changed to the predetermined temperature in step S810, and when the current temperature is not set to the highest temperature HI, in step S881, the temperature can be changed to the lowest temperature LO.

[0062] Meanwhile, in response to determining that the user does not perform a drag operation after the touch operation according to the determination result in step S840, the process may proceed to step S850, and determine whether the user's touch operation is a touch operation for temperature increase. In response to determining that the user's touch operation is an operation for temperature increase according to the determination result in step S850, the temperature may be increased by 0.5°C (S851), and when the user's touch operation is not an operation for temperature increase, the temperature may be decreased by 0.5°C (S852).

[0063] Fig. 9 1 is a flowchart for explaining a method of accurately controlling a vehicle air conditioning device according to an exemplary embodiment of the present invention. The control method will be described below for each step.

[0064] First, in step S910, the current set temperature may be stored in the air conditioning device for a vehicle, the air conditioning device including a touch operation unit configured to be dragged by a user to rotate 360 ​​degrees. Next, in step S920, the user's touch operation may be input, and then in step S930, it may be determined whether the user performs a drag operation after the touch operation. In response to determining that the drag operation is performed according to the determination result in step S930, the process may proceed to step S940, and it may be determined whether the drag operation is performed in the temperature increase direction.

[0065] In response to determining that the drag operation is performed in the temperature increase direction according to the determination result in step S940, the process may proceed to step S980, and it may be determined whether the current temperature is set to the highest temperature HI. When the current temperature is set to the highest temperature HI, the highest temperature HI may be maintained (S982), and when the current temperature is not set to the highest temperature HI (for example, set to be less than HI), the temperature may be increased by 0.5°C (S981).

[0066] In addition, in response to determining that the drag operation is not performed in the temperature increase direction according to the determination result in step S940, the process may proceed to step S960, and it may be determined whether the current temperature is set to the lowest temperature LO. When the current temperature is set to the lowest temperature LO, the lowest temperature LO may be maintained (S962), and when the current temperature is not set to the lowest temperature LO, the temperature may be reduced by 0.5°C (S961).

[0067] After the temperature is increased by 0.5°C in step S981 and the temperature is decreased by 0.5°C in step S961, the process may proceed to steps S990 and S970, respectively, and it may be determined whether the user's touch operation is stopped. In response to determining that the user's touch operation is not stopped according to the determination results in steps S990 and S970, the process may return to step S940, and it may be determined again whether a drag operation is performed in the temperature increase direction.

[0068] Meanwhile, in response to determining that the drag operation is not performed according to the determination result in step S930, the process may proceed to step S950, and it may be determined whether the user's touch operation is an operation for temperature increase. In response to determining that the user's touch operation is an operation for temperature increase according to the determination result in step S950, the temperature may be increased by 0.5°C (S952), and when the user's touch operation is not an operation for temperature increase, the temperature may be decreased by 0.5°C (S951).

[0069] Although the present invention has been described in detail with reference to representative exemplary embodiments, it will be appreciated by those skilled in the art that various modifications may be made to the exemplary embodiments without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described exemplary embodiments, but should be limited not only by the appended claims, but also by all changes or modifications derived from concepts equivalent to the claims.

Claims

1. A method for controlling a vehicle air conditioning device, the air conditioning device comprising a touch operation unit configured to be touched and dragged by a user to rotate 360 ​​degrees, the method comprising: storing, by a processor, a predetermined temperature; By means of the processor, storing the current set temperature; Receiving a user touch operation through the processor; determining, by the processor, whether a drag operation is performed on the touch operation unit after a user touch operation; determining, by the processor, whether a drag operation is performed in a temperature increasing direction; By the processor, in response to determining that the drag operation is performed in the temperature increasing direction, determining whether the current temperature is set as the lowest temperature LO; When the current temperature is set to the lowest temperature LO, the temperature is changed to a predetermined temperature by the processor; When the current temperature is set to be greater than the lowest temperature LO, the processor changes the temperature to the highest temperature HI; In response to determining that the drag operation is not performed in the temperature increasing direction, determining, by the processor, whether the current temperature is set as the highest temperature HI; as well as In response to determining that the drag operation is not performed in the temperature increasing direction, when the current temperature is set to the highest temperature HI, the temperature is changed to a predetermined temperature by the processor, and when the current temperature is set to be lower than the highest temperature HI, the temperature is changed to the lowest temperature LO.

2. The method according to claim 1, further comprising: In response to determining that the drag operation is not performed, determining, by the processor, whether the user touch operation is a touch operation for heating up; When the user touch operation is a touch operation for increasing the temperature, the temperature is increased by 0.5° C. by the processor; and When the user touch operation is not a touch operation for increasing the temperature, the temperature is reduced by 0.5° C. through the processor.

3. A method for controlling a vehicle air conditioning device, the air conditioning device comprising a touch operation unit configured to be touched and dragged by a user to rotate 360 ​​degrees, the method comprising: The current set temperature is stored through the processor; Receiving a user touch operation through the processor; Determining, by the processor, whether a drag operation is performed after the user touch operation; determining, by the processor, whether a drag operation is performed in a temperature increasing direction; In response to determining that the drag operation is performed in the temperature increasing direction, determining, by the processor, whether the current temperature is set to the highest temperature HI, maintaining the highest temperature HI when the current temperature is set to the highest temperature HI, and increasing the temperature by 0.5° C. when the current temperature is set to be lower than the highest temperature HI; as well as In response to determining that the drag operation is not performed in the temperature increasing direction, the processor determines whether the current temperature is set to the lowest temperature LO. When the current temperature is set to the lowest temperature LO, the lowest temperature LO is maintained, and when the current temperature is set to be higher than the lowest temperature LO, the temperature is reduced by 0.5°C.

4. The method according to claim 3, further comprising: determining, by the processor, whether the user touch operation is stopped after the temperature is increased by 0.5° C. and the temperature is decreased by 0.5° C.; as well as When the user touch operation has not stopped, the process is returned to determining whether a drag operation is performed after the user touch operation.

5. The method according to claim 3, further comprising: In response to determining that the drag operation is not performed, determining, by the processor, whether the user touch operation is a touch operation for heating up; When the user touch operation is a touch operation for increasing the temperature, the temperature is increased by 0.5° C. by the processor; and When the user touch operation is not a touch operation for increasing the temperature, the temperature is reduced by 0.5° C. through the processor.

Images