KR20210052732A - Air conditioning system and method for vehicle - Google Patents

Abstract

Disclosed is a system for air conditioning of a vehicle, which comprises: an air conditioning control unit comparing indoor temperature of a vehicle with a preset stabilization temperature range and determining a rotating amount of a blower for vehicle indoor blowing based on the comparison result; an image output unit based on a result of comparing the indoor temperature with the stabilization temperature range to select and output an image for guiding an autonomous sensory pleasure response; and a display unit displaying the image outputted from the image output unit.

Description

Vehicle air conditioning system and method {AIR CONDITIONING SYSTEM AND METHOD FOR VEHICLE}

The present invention relates to a vehicle air conditioning system and method, and more particularly, to a vehicle air conditioning system and method capable of eliminating discomfort due to noise generated during initial cooling of air conditioning.

In general, a vehicle air conditioning system operates a blower for blowing at a high speed in order to quickly converge the indoor temperature of a vehicle to a temperature at which the occupant feels comfortable at the beginning of air conditioning. For this reason, in the initial stage of vehicle air conditioning, the occupant may feel uncomfortable due to the noise of the blower rotating at high speed or the sound of wind blown into the vehicle.

Accordingly, in the art, there is a demand for a technology capable of improving the emotional quality of the vehicle by solving the unpleasant feeling caused by the noise caused by the high-speed rotation of the blower during the initial air conditioning of the vehicle.

The matters described as the background art are only for enhancing an understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the prior art already known to those of ordinary skill in the art.

KR 10-2014-0052402 A KR 10-2014-0111443 A

Accordingly, the present invention provides a vehicle air conditioning system capable of eliminating discomfort caused by noise caused by high-speed rotation of the blower during initial air conditioning of the vehicle by inducing an autonomous sensory pleasure response (ASMR) to the vehicle occupant, and To provide a method is a technical problem to be solved.

As a means for solving the above technical problem, the present invention,

An air conditioning control unit that compares the indoor temperature of the vehicle with a preset stabilization temperature range, and determines a rotation amount of the blower for blowing inside the vehicle based on the comparison result;

An image output unit for selecting and outputting an image for inducing an autonomous sensory pleasure response based on a result of comparing the room temperature and the stabilization temperature range; And

A display unit that displays an image output from the image output unit;

It provides a vehicle air conditioning system comprising a.

In one embodiment of the present invention, when the room temperature is greater than the upper limit of the stabilization temperature range or the room temperature is less than the lower limit of the stabilization temperature range, the air conditioning control unit sets the blower to a preset reference rotation amount or more. It can be controlled to rotate at high speed.

In one embodiment of the present invention, when the indoor temperature is greater than the upper limit of the stabilization temperature range, the image output unit outputs a cooling image for inducing a feeling of cooling to the occupant of the vehicle to the display unit, and the indoor temperature is the When it is smaller than the lower limit of the stabilization temperature range, the image output unit may output a heating image to induce warmth to the occupant of the vehicle to the display unit.

In one embodiment of the present invention, a sound source output unit for determining whether to output a sound source based on a result of comparing the room temperature and the stabilization temperature range, and an amplifier-speaker unit for reproducing a sound source output from the sound source output unit. can do.

In one embodiment of the present invention, when the room temperature is greater than the upper limit of the stabilization temperature range, or when the room temperature is less than the lower limit of the stabilization temperature range, the sound source output unit is caused by noise or blowing from the blower. A sound source for noise reduction that can cancel out the generated noise can be output.

In one embodiment of the present invention, the display unit may be provided on at least a portion of a windshield glass or side glass of a vehicle.

As another means for solving the above technical problem, the present invention,

When an input for initiating vehicle air conditioning is generated, comparing an indoor temperature of the vehicle and a preset stabilization temperature range, and determining a rotation amount of a cooling/heating mode and a blower for blowing inside the vehicle based on the comparison result; And

Displaying an image for inducing an autonomous sensory pleasure response on a display unit provided inside the vehicle based on a result of comparing the indoor temperature with the stabilization temperature range and a cooling/heating mode;

It provides a vehicle air conditioning method comprising a.

In one embodiment of the present invention, in the displaying of the image, when the indoor temperature is in a cooling mode that is greater than the upper limit of the stabilization temperature range, a cooling image for inducing a feeling of cooling to the occupant of the vehicle may be displayed. have.

In one embodiment of the present invention, the displaying of the image may include displaying a heating image for inducing warmth to the occupant of the vehicle in a heating mode in which the indoor temperature is less than the lower limit of the stabilization temperature range. .

In an embodiment of the present invention, after the step of displaying the image, when the room temperature is within the stabilization temperature range, the step of changing the displayed image may be further included.

In an embodiment of the present invention, when the room temperature is greater than the upper limit of the stabilization temperature range or the room temperature is less than the lower limit of the stabilization temperature range, noise generated by the blower or noise generated by blowing is reduced. It may further include the step of outputting a sound source for canceling the noise can be canceled.

According to the vehicle air conditioning system and method, when the noise of the blower and the noise caused by the blowing increases during cooling and heating, the vehicle's windshield glass or side glass is used to provide an image to feel the coolness or warmth to the occupants. It can induce a pleasure response (Autonomous Sensory Meridian Response (ASMR)). Accordingly, a feeling of discomfort of a vehicle occupant caused by noise caused by high-speed rotation of the blower during initial air conditioning of the vehicle may be reduced.

In addition, according to the vehicle air conditioning system and method, by providing a sound source capable of canceling not only an image but also an actual noise during operation of the blower, noise due to high-speed rotation of the blower can be reduced, thereby reducing discomfort of a vehicle occupant.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those of ordinary skill in the art from the following description. will be.

1 is a block diagram showing a vehicle air conditioning system according to an embodiment of the present invention.
2 is a diagram illustrating a vehicle interior to which a vehicle air conditioning system according to an embodiment of the present invention is applied.
3 is a flowchart illustrating a vehicle air conditioning method according to an embodiment of the present invention.

Hereinafter, a vehicle air conditioning system according to various embodiments will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a vehicle air conditioning system according to an embodiment of the present invention, and FIG. 2 is a view showing a vehicle interior to which a vehicle air conditioning system according to an embodiment of the present invention is applied.

1 and 2, the vehicle air conditioning system according to an embodiment of the present invention, based on a result of comparing the indoor temperature of the vehicle with a preset stabilization temperature range, the rotation amount of the blower 13 for blowing inside the vehicle An image output unit 23 and an image output unit 23 that determine whether to output an image based on a result of comparing the air conditioning control unit 21 to determine the vehicle's indoor temperature and the stabilization temperature range by the air conditioning control unit 21 It may be configured to include a display unit 14 that displays an image output from.

The air conditioning control unit 21 is a controller that receives an air conditioning setting of an occupant through the air conditioning input unit 11 installed in the vehicle and determines an air conditioning amount, a cooling/heating mode, and an air conditioning intensity. The air conditioning control unit 21 is an engine control system (EMS), a transmission control unit (TCU), and an advanced driver assistance system (EMS), which is typically installed in a vehicle and in charge of air conditioning-related control. ADAS) may correspond to one or more of several controllers in the vehicle.

Here, the preset stabilization temperature range is a vehicle interior temperature range in which a vehicle occupant can feel comfortable without feeling uncomfortable, and may be determined differently for each vehicle manufacturer or vehicle manufacturing country, but is approximately 22° C. to 25° C. It can be determined in the range of.

In particular, in one embodiment of the present invention, the air conditioning control unit 21 compares the temperature detected by the temperature sensor 12 installed inside and outside the vehicle with a preset stabilization temperature range, and calculates the amount of air supplied into the vehicle according to the comparison result. And determine the amount of rotation of the blower for blowing.

For example, when the vehicle interior temperature detected by the temperature sensor 12 is higher than the upper limit of the preset stabilization temperature range, the air conditioning control unit 21 may supply a large amount of cold air to the vehicle interior. The amount of rotation of the blower 13 for blowing may be determined so as to rotate at a high speed above the total amount. In addition, when the vehicle interior temperature detected by the temperature sensor 12 is lower than the lower limit of the preset stabilization temperature range, the air conditioning control unit 21 may supply a large amount of warm air to the interior of the vehicle. It is possible to determine the amount of rotation of the blowing blower 13 so as to rotate at high speed.

Information on the amount of rotation determined by the air conditioning control unit 21 is provided to the blower driving unit 22 having a circuit for driving the blower, and the blower driving unit 22 is a blower so that the amount of rotation provided by the air conditioning control unit 21 can be output. You can control the voltage and current provided by (13).

In this way, when the blower for blowing 13 is operated more than the reference rotation amount, noise due to the rotation of the blower 13 and noise due to the introduction of a large amount of wind to the vehicle ventilation port are generated in the interior of the vehicle. It can cause discomfort. In order to eliminate the discomfort caused by such noise, various embodiments of the present invention provide an image capable of inducing an Autonomous Sensory Meridian Response (ASMR) to the driver through the display 14 provided in the vehicle. I can.

To this end, various embodiments of the present invention, when the blower 13 is operated at high speed, that is, the vehicle interior temperature detected by the temperature sensor 12 is higher than the upper limit of the preset stabilization temperature range or a preset stabilization When the vehicle interior temperature detected by the temperature sensor 12 is lower than the lower limit of the temperature range, an image output unit 23 for outputting an image and a display unit 14 for displaying an image output from the image output unit 23 ) Can be included.

The image output unit 23 stores an image that can be output in the cooling or heating mode of the air conditioning system, and the vehicle interior temperature detected by the temperature sensor 12 is higher than the upper limit of the stabilization temperature range preset by the air conditioning control unit 21 When it is determined that is higher or the interior temperature of the vehicle detected by the temperature sensor 12 is lower than the lower limit of the preset stabilization temperature range, an image corresponding to the cooling or heating mode may be output to the display unit 14. .

The display unit 14 is a means for displaying an image output from the image output unit 23 so that the occupant of the vehicle can visually recognize it. The display unit 14 may be implemented using various display means known in the art.

The display unit 14 is implemented as a display for an Audio Video Navigation (AVN) system provided on a dashboard of a vehicle, or a windshield glass 141 in the front of the vehicle interior or a side glass provided on a door of the vehicle ( 142) may be implemented in a form in which some or all of them are used as a screen. For example, the display unit 14 may be implemented as a liquid crystal display device known in the art, a display device using organic light emitting diodes (OLED), a beam project device, or the like.

Of course, in the example in which the windshield glass 141 or the side glass 142 is used as a screen, in order to display an image using the display unit 14 even while the vehicle is driving, it is understood that the vehicle is autonomously driving at level 4 or higher. It should be made on the premise. In addition, an image may be selectively displayed or not displayed on the side glass of the second row of vehicles in consideration of whether passengers are boarded in the second row of vehicles.

In the cooling mode, the image output unit 23 can output cooling images such as waterfalls, seas, and glaciers in which the occupants can feel cool, and in the heating mode, heating images such as bonfires and stoves where the occupants can feel warmth. Can be printed.

On the other hand, an embodiment of the present invention reproduces the sound source output from the sound source output unit 24 and the sound source output unit 24 to induce an Autonomous Sensory Meridian Response (ASMR) through the occupant's hearing. It may further include an amplifier-speaker unit 15 for.

The sound source output unit 24 includes a temperature sensor 12 that is higher in the vehicle interior temperature detected by the temperature sensor 12 than the upper limit of the stabilization temperature range preset by the air conditioning control unit 21 or the lower limit of the preset stabilization temperature range. When it is determined that the vehicle interior temperature detected by) is lower, a pre-stored sound source may be output.

In particular, the sound source output unit 24 may store and output a sound source for noise reduction capable of canceling the noise by analyzing the magnitude or pattern of various noises generated when the blower 13 rotates at high speed.

In one embodiment of the present invention, the sound source output unit 24 may output a sound source in both the cooling mode and the heating mode, or may output the sound source only in the heating mode. That is, in the cooling mode, noise generated by strong air blowing may rather provide a feeling of cooling to the occupant, so the sound source output unit 24 may not output a separate sound source for noise reduction. Conversely, noise generated by strong blowing in the heating mode may give a feeling of cold to the occupant, so the sound source output unit 24 may output a sound source for noise reduction.

The vehicle interior temperature detected by the temperature sensor 12 by the air conditioning control unit 21 is higher than the upper limit of the preset stabilization temperature range, or the vehicle interior temperature detected by the temperature sensor 12 is higher than the lower limit of the preset stabilization temperature range. Is determined to be lower, and when time passes while driving the blower 13, the indoor temperature of the vehicle may enter within a preset stabilization temperature range. In this way, when the vehicle interior temperature enters the stabilization temperature range, the air conditioning control unit 21 decelerates the blower 13 and the image output unit 23 is It can output a mild image that can provide comfort. Of course, the mild image provided in the cooling mode and the mild image provided in the heating mode may be different images.

3 is a flowchart illustrating a vehicle air conditioning method according to an embodiment of the present invention.

Referring to FIG. 3, in the vehicle air conditioning method according to an embodiment of the present invention, when an input for starting vehicle air conditioning by a vehicle occupant manipulating the air conditioning input unit 11 is generated, the air conditioning control unit 21 determines the indoor temperature of the vehicle. And comparing a preset stabilization temperature range, and determining a cooling/heating mode and a rotation amount of a blower for blowing inside a vehicle based on the comparison result.

Next, based on the result of comparing the cooling/heating mode determined in the air conditioning required amount calculation step (S11) with the indoor temperature of the vehicle and the preset stabilization temperature range, an image for inducing an autonomous sensory pleasure response is displayed on the display provided inside the vehicle. Displaying steps (S12, S21, S22, S23, S31, S32, S33) may be performed.

More specifically, when it is determined in the cooling mode that the room temperature is greater than the upper limit of the stabilization temperature range as a result of the comparison of the air conditioning control unit 21 in step S11 (S12, S21), the blower ( 12) is determined to allow a large amount of cold air to flow into the interior of the vehicle, and the image output unit 23 can output cooling images such as waterfalls, seas, glaciers, etc., through which the occupants can feel cool ( S22).

On the other hand, when it is determined in the heating mode that the indoor temperature is smaller than the lower limit of the stabilization temperature range as a result of the comparison of the air conditioning control unit 21 in step S11 (S12, S31), the blower 12 rotates at high speed above a preset reference rotation amount. By determining and driving the number of rotations, a large amount of warm air flows into the interior of the vehicle, and the image output unit 23 may output a heating image such as a bonfire or a stove in which the occupant feels warm (S32).

The step (S11) of calculating the required amount of air conditioning while the blower 13 is driven may be repeated at a certain period, and in the case where the indoor temperature of the vehicle is within the stabilization temperature range in the repeated step (S11), the image output unit 23 ) Can change the displayed image (S23, S33).

For example, in the case where the vehicle interior temperature is lowered by driving the blower 13 in the cooling mode and falls within the stabilization temperature range (S21), the image output unit 23 is As a result, a mild image that can feel comfortable can be displayed (S23). In step S23, the air conditioning control unit 21 may reduce the number of revolutions of the blower 13.

Similarly, when the vehicle interior temperature rises through the drive of the blower 13 in the heating mode and falls within the stabilization temperature range (S31), the image output unit 23 is relatively comfortable instead of the heating image output in step S32. It is possible to display a mild image that can feel (S33).

On the other hand, in one embodiment of the present invention, when the blower 13 is driven at a high speed, the step of outputting a sound source for noise reduction capable of canceling out noise generated by the blower or noise generated by blowing is further performed (S32). Can include.

In the example shown in FIG. 3, the step of outputting the sound source for noise reduction (S32) is illustrated as outputting only in the heating mode, but the sound source output unit 24 may output sound sources in both the cooling mode and the heating mode. have. In the cooling mode, since noise generated by strong air blowing may provide a feeling of cooling to the occupant, the sound source output unit 24 may not output a separate sound source for noise reduction. On the contrary, since noise generated by strong blowing in the heating mode may give a feeling of cold to the occupant, it is preferable that the sound source output unit 24 outputs a sound source for noise reduction.

When the indoor temperature is within the stabilization temperature range, the air conditioning control unit 21 reduces the number of rotations of the blower 13 to reduce noise, so the sound source output unit 24 is a sound source for noise reduction, so that the occupants can feel comfortable. The mild sound source may be output and reproduced (S33).

As described above, in the vehicle air conditioning system and method according to various embodiments of the present invention, when the noise of the blower and the noise caused by blowing increase during cooling and heating, the vehicle's windshield glass or side glass is used to provide a feeling of coolness or warmth. By providing an image that can feel the user, it is possible to induce an Autonomous Sensory Meridian Response (ASMR) to the occupant. Accordingly, a feeling of discomfort of a vehicle occupant caused by noise caused by high-speed rotation of the blower during initial air conditioning of the vehicle may be reduced.

In addition, the vehicle air conditioning system and method according to various embodiments of the present invention provide a sound source capable of canceling not only the image but also the actual noise when the blower is operated, thereby reducing the noise caused by the high-speed rotation of the blower and reducing the discomfort of the vehicle occupant. I can make it.

Although shown and described in connection with specific embodiments of the present invention above, it will be apparent to those of ordinary skill in the art that the present invention can be variously improved and changed within the scope of the claims. .

11: air conditioning input 12: temperature sensor
13: blower 14: display
141: windshield glass 142: side glass
15: amplifier-speaker unit 21: air conditioning control unit
22: blower driving unit 23: image output unit
24: sound source output unit

Claims (11)

An air conditioning control unit that compares the indoor temperature of the vehicle with a preset stabilization temperature range, and determines a rotation amount of the blower for blowing inside the vehicle based on the comparison result;
An image output unit for selecting and outputting an image for inducing an autonomous sensory pleasure response based on a result of comparing the room temperature and the stabilization temperature range; And
A display unit that displays an image output from the image output unit;
Vehicle air conditioning system comprising a. The method according to claim 1,
When the room temperature is greater than the upper limit of the stabilization temperature range or the room temperature is less than the lower limit of the stabilization temperature range, the air conditioning control unit controls the blower to rotate at a high speed above a preset reference rotation amount. Vehicle air conditioning system. The method according to claim 2,
When the indoor temperature is greater than the upper limit of the stabilization temperature range, the image output unit outputs a cooling image for inducing a cool feeling to the occupant of the vehicle to the display unit, and when the indoor temperature is less than the lower limit of the stabilization temperature range And the image output unit outputs a heating image for inducing warmth to an occupant of the vehicle to the display unit. The method according to claim 2,
A vehicle air conditioning system further comprising a sound source output unit configured to determine whether to output a sound source based on a result of comparing the indoor temperature and the stabilization temperature range, and an amplifier-speaker unit configured to reproduce a sound source output from the sound source output unit. The method of claim 4,
When the room temperature is greater than the upper limit of the stabilization temperature range or the room temperature is less than the lower limit of the stabilization temperature range, the sound source output unit can offset noise generated by the blower or noise generated by blowing. Vehicle air conditioning system, characterized in that outputting a sound source for noise reduction. The method of claim 4,
The display unit is a vehicle air conditioning system, characterized in that provided on at least a portion of the windshield glass or side glass of the vehicle. When an input for initiating vehicle air conditioning is generated, comparing an indoor temperature of the vehicle and a preset stabilization temperature range, and determining a rotation amount of a cooling/heating mode and a blower for blowing inside the vehicle based on the comparison result; And
Displaying an image for inducing an autonomous sensory pleasure response on a display unit provided inside the vehicle based on a result of comparing the indoor temperature with the stabilization temperature range and a cooling/heating mode;
Vehicle air conditioning method comprising a. The method according to claim 7, wherein the displaying of the image,
When the indoor temperature is in a cooling mode that is greater than the upper limit of the stabilization temperature range, a cooling image for inducing a feeling of cooling to an occupant of the vehicle is displayed. The method according to claim 7, wherein the displaying of the image,
And displaying a heating image for inducing warmth to an occupant of the vehicle when the indoor temperature is in a heating mode that is less than a lower limit of the stabilization temperature range. The method according to claim 8 or 9,
After the step of displaying the image, when the indoor temperature is within the stabilization temperature range, changing the displayed image. The method of claim 7,
When the room temperature is greater than the upper limit of the stabilization temperature range or the room temperature is less than the lower limit of the stabilization temperature range, a noise reduction sound source capable of canceling the noise generated by the blower or the noise generated by blowing The vehicle air conditioning method further comprising the step of outputting a.

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