KR20220124506A - Vehicle control apparatus and vehicle control method - Google Patents

Abstract

Embodiments of the present invention relate to a vehicle control device and a vehicle control method. According to one aspect, provided are the vehicle control device and the vehicle control method, wherein the vehicle control device comprises: a reception unit receiving a wiper operation signal from a wiper provided to a vehicle; a control unit generating an air injection control signal controlling air to be injected into a protection member provided on a front side surface of a radar signal transmission area when the wiper operation signal is received; and a transmission unit transmitting the air injection control signal to an air injector.

Description

VEHICLE CONTROL APPARATUS AND VEHICLE CONTROL METHOD

The present embodiments relate to a vehicle control apparatus and a vehicle control method.

The protective member provided in the bumper assembly of the vehicle is a plastic material, and it is manufactured to fit the styling of the vehicle, improves the aesthetics of the appearance, and transmits the impact applied from the outside to the periphery and at the same time absorbs some impact. In addition, the protection member is designed in consideration of the antenna beam characteristics of the vehicle radar for the purpose of protecting the vehicle radar from the outside.

The protection member is designed to minimize distortion of power and phase-related information for the radar's transmit/receive signal. However, power attenuation and phase distortion may occur even with a small amount of moisture formed on the surface of the protection member of the vehicle being driven in the rain, and the attenuation and distortion may be severe in case of heavy rain.

The attenuation of power and phase distortion of the radar's transmit/receive signal can cause accidents due to malfunctions such as Forward Collision-Avoidance Assist (FCA) and Smart Cruise Control (SCC). There is an increased risk of property damage.

Therefore, even if there is no problem in the performance of the radar itself, it is highly likely that the reduction and distortion of the radar signal acquired due to the external influence of moisture on the surface of the protection member leads to a major problem of the Driver Assistance System (DAS). Therefore, there is a demand for the development of a water removal technology to minimize the effect of water on the surface of the protection member during rain.

Since the present embodiments can remove moisture from the surface of the protection member by interlocking the operation with the wiper, attenuation of the power of the radar signal and distortion of the phase caused by the moisture on the surface of the protection member are blocked, thereby preventing a driver assistance system (DAS). ), it is possible to provide a vehicle control device and a vehicle control method that can prevent problems that may occur.

In one aspect, the present embodiments provide a receiver for receiving a wiper operation signal from a wiper provided in a vehicle, and when the wiper operation signal is received, air injection control for controlling the air to be sprayed onto the protective member provided on the front surface of the radar signal transmission area It is possible to provide a vehicle control device including a control unit for generating a signal and a transmitter for transmitting an air injection control signal to the air injector.

In another aspect, the present embodiments provide a receiving step of receiving a wiper operation signal from a wiper provided in a vehicle, and when the wiper operation signal is received, air injection for controlling the air to be sprayed to the protective member provided on the front surface of the radar signal transmission area It is possible to provide a vehicle control method comprising a control step of generating a control signal and a transmission step of transmitting the air injection control signal to the air injector.

According to the present embodiments, since the operation of the wiper is interlocked to remove moisture on the surface of the protective member, attenuation of the power of the radar signal and distortion of the phase caused by the moisture on the surface of the protective member are blocked and the driver assistance system (Driver Assistance) It is possible to provide a vehicle control device and a vehicle control method capable of preventing problems that may occur in the system (DAS).

1 is a side view schematically illustrating positions of a protection member and a radar.
2 is a block diagram schematically illustrating a vehicle control apparatus according to the present embodiments.
3 is a block diagram schematically showing a part of the vehicle control apparatus according to the present embodiments.
4 is a perspective view showing the position of the air jet nozzle according to the present embodiments.
5 and 6 are partially enlarged perspective views showing the positions of the air injection nozzles according to the present embodiments.
7 is a front view showing the position of the air jet nozzle according to the present embodiments.
8 is a partially enlarged front view showing the position of the air jet nozzle according to the present embodiments.
9 is a cross-sectional view showing the position of the air jet nozzle according to the present embodiments.
10 is a flowchart illustrating a vehicle control method according to the present embodiments.
11 and 12 are flowcharts illustrating a part of a vehicle control method according to the present embodiments.

Hereinafter, some embodiments of the present disclosure will be described in detail with reference to exemplary drawings. In adding reference numerals to components of each drawing, the same components may have the same reference numerals as much as possible even though they are indicated in different drawings. In addition, in describing the present embodiments, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present technical idea, the detailed description may be omitted. When "includes", "having", "consisting of", etc. mentioned in this specification are used, other parts may be added unless "only" is used. When a component is expressed in a singular, it may include a case in which the plural is included unless otherwise explicitly stated.

In addition, in describing the components of the present disclosure, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, order, or number of the elements are not limited by the terms.

In the description of the positional relationship of components, when two or more components are described as being "connected", "combined" or "connected", two or more components are directly "connected", "coupled" or "connected" ", but it will be understood that two or more components and other components may be further "interposed" and "connected," "coupled," or "connected." Here, other components may be included in one or more of two or more components that are “connected”, “coupled” or “connected” to each other.

In the description of the temporal flow relation related to the components, the operation method or the manufacturing method, for example, the temporal precedence relationship such as "after", "after", "after", "before", etc. Alternatively, when a flow precedence relationship is described, it may include a case where it is not continuous unless "immediately" or "directly" is used.

On the other hand, when numerical values or corresponding information (eg, level, etc.) for a component are mentioned, even if there is no explicit description separately, the numerical value or the corresponding information is based on various factors (eg, process factors, internal or external shock, It may be interpreted as including an error range that may be caused by noise, etc.).

1 is a side view schematically illustrating positions of a protection member and a radar.

Referring to FIG. 1 , the radar 120 is mounted in an engine room 110 provided inside a vehicle. However, the present invention is not limited thereto, and may be mounted on other components provided inside the vehicle, for example, a frame.

The radar 120 may be one of a front detection radar mounted on the front of the vehicle, a rear detection radar mounted on the rear of the vehicle, and a side detection radar mounted on each side of the vehicle.

A protection member 134 disposed in the bumper 132 may be provided in front of the radar 120 . The protection member 134 may transmit a radar signal and may prevent damage to the radar by foreign substances or stone chips.

When detecting an object near the vehicle, the radar 120 should have both a medium/long-range detection function for detecting a long-range target in front and a short-range detection function for detecting a short-range target near the vehicle.

In a vehicle in which radar is used, various types of driver assistance systems (DAS) are used to assist a driver in driving.

Among them, in an adaptive cruise system (ACC) that follows a vehicle in front, it is necessary to detect a mid-to-long-range target in front of the vehicle in the driving direction.

On the other hand, an Autonomous Emergency Braking System (AEB) or Autonomous Emergency Steering System (AES) that urgently brakes or avoids steering the vehicle in the presence of an obstacle ahead, and an obstacle in the adjacent lane when changing lanes In the Lane Changing Assistance (LCA) system, etc., it is necessary to detect a short-distance obstacle in the vicinity of a vehicle with high precision.

Due to this necessity, as shown in FIG. 1 , the radar 120 has a long-range sensing area 142 with a long sensing distance while having a relatively narrow sensing angle for medium- and long-range sensing, and short-range sensing with a wide sensing angle and small sensing distance. Each area 144 should be provided.

To this end, the radar 120 needs to transmit a transmission signal in a mid-long-range transmission beam pattern for mid-to-long-range sensing, and transmits a transmission signal in a short-range transmission beam pattern different from the mid-long-range transmission beam pattern for short-range sensing.

As such, in the vehicle radar 120, it is necessary to integrate the mid/long-range radar and the short-range radar, and in order to integrate the mid/long-range radar and the short-range radar, it is common to implement a different transmission antenna and a common reception antenna. to be.

The transmission/reception signal of the radar 120 may be influenced by the protection member 134 . For example, moisture may be present on the surface of the protection member 134 when it rains. In this case, power attenuation and phase distortion of the transmission/reception signal of the radar 120 may occur, and when a lot of rain such as rain falls, power attenuation and phase distortion may be very severe.

Attenuation of power and phase distortion of the transmission/reception signal of the radar 120 may cause malfunctions such as Forward Collision-Avoidance Assist (FCA) and Smart Cruise Control (SCC). Therefore, in order to prevent the radar 120 from affecting the transmission/reception signal of the radar 120 due to the moisture on the surface of the protection member 134 during rain, the development of a technology for efficiently removing the moisture on the surface of the protection member 134 is required.

2 is a block diagram schematically illustrating a vehicle control apparatus according to the present embodiments.

Referring to FIG. 2 , the vehicle control device 220 may include a receiver 221 that receives a wiper operation signal from a wiper 210 provided in the vehicle.

The wiper 210 may be provided on the windshield of the vehicle, but is not limited thereto. For example, the wiper 210 may be provided on the rear windshield of the vehicle.

The wiper 210 may be operated when a driver driving the vehicle operates the wiper operation button. When the wiper 210 is operated, a wiper operation signal may be transmitted to the receiver 221 of the vehicle control device 220 .

The wiper operation signal may include information on whether the wiper 210 operates, information on a wiper operation speed, and the like. Accordingly, the receiver 221 may obtain information on whether the wiper 210 operates and an operation speed by receiving the wiper operation signal.

When the vehicle is provided with a rain sensor, and the operation time and operation speed of the wiper 210 provided on the windshield of the vehicle are automatically controlled by the rain sensor, the receiver 221 receives the wiper operation signal from the rain sensor. You may.

Referring to FIG. 2 , when a wiper operation signal is received, the vehicle control device 220 includes a control unit 222 that generates an air injection control signal for controlling the air to be injected to the protection member provided on the front surface of the radar signal transmission region. may include

The radar signal transmission region may refer to a short-range sensing region 144 having a wide sensing angle and a small sensing distance shown in FIG. 1 . The controller 222 may generate an air injection control signal for removing moisture from the surface of the protection member based on the wiper operation signal.

The controller 222 may dynamically set the pressure of the injected air based on the wiper operation speed information included in the wiper operation signal. For example, the pressure of the injected air may be increased or decreased in proportion to the operation speed of the wiper.

Also, the controller 222 may dynamically set the temperature of the injected air based on a comparison result of comparing the external temperature of the vehicle with a preset reference temperature range. For example, the temperature of the injected air is set to be the same as the external temperature of the vehicle when the external temperature of the vehicle is within the reference temperature range. When the external temperature of the vehicle is out of the reference temperature range, the temperature of the vehicle's air conditioner can be set using

Referring to FIG. 2 , the vehicle control device 220 may include a transmitter 223 that transmits an air injection control signal to the air injector 230 .

The air injector 230 may include an air ejection nozzle for ejecting air and a wiper tube for injecting air to the air ejection nozzle. The wire tube may include any fluid tube, tube tube, etc. through which air may flow.

The wire tube may be connected to the air conditioner to inject air into the air spray nozzle, but is not limited thereto. For example, the air injector 230 may include a separate air intake or compressor, and a wire tube may be connected thereto.

The air jet nozzle included in the air jet 230 may be provided above the protection member, and the air jet nozzle may be additionally provided on the left and right sides of the protection member. However, the present invention is not limited thereto, and the air injection nozzles included in the air injector 230 may be provided at both upper corners of the protection member.

The air jet nozzle may be provided in the protection member, but is not limited thereto. The air spray nozzle included in the air sprayer 230 may be provided under the bumper provided on the upper portion of the protective member, or may be provided under the grill provided on the upper portion of the protective member. In addition, the air injection nozzle included in the air injector 230 may be provided on the rear surface of the emblem provided on the upper portion of the protection member so as not to be exposed to the outside of the vehicle.

Since the vehicle control apparatus according to the present embodiments can remove moisture from the surface of the protection member by interlocking the operation with the wiper, attenuation of the power of the radar signal and distortion of the phase caused by the moisture on the surface of the protection member are blocked and the driver assistance system It can prevent problems that may occur in the Driver Assistance System (DAS).

3 is a block diagram schematically showing a part of the vehicle control apparatus according to the present embodiments.

Referring to FIG. 3 , the controller 222 may dynamically set the pressure 225 of the injected air based on the wiper operation speed information 224 included in the wiper operation signal. For example, the pressure 225 of the injected air may be increased or decreased in proportion to the operation speed of the wiper.

The wiper operation speed information 224 is a value for the wiper operation speed and may vary depending on the amount of rain falling during rain. For example, when a drizzle falls, the wiper operation speed information 224 may have a low value, and when a strong shower falls, the wiper operation speed information 224 may have a high value.

Also, the wiper operation speed information 224 may change from a low value to a high value or from a high value to a low value according to a change in the amount of falling rain. Accordingly, the wiper operation speed information 224 may be proportional to the amount of rain falling.

The amount of water formed on the protection member may vary depending on the amount of rain falling. In the case of drizzle, the amount of moisture on the protection member may be small, and in the case of strong showers, the amount of moisture on the protection member may be large.

When the drizzle falls and the wiper operation speed information 224 has a low value, the control unit 222 sets the pressure 255 of the air sprayed to the protection member to a small value because the amount of water formed on the protection member may be small, When a strong shower comes down and the wiper operation speed information 224 has a high value, the amount of water that forms on the protection member may be large, so that the pressure 255 of the air sprayed to the protection member may be set to a high value.

In other words, the control unit 222 may generate an air injection control signal to increase or decrease the pressure 225 of the injected air in proportion to the wiper operation speed information 224 that changes according to the amount of rain falling.

Accordingly, the pressure 225 of the air sprayed to the surface of the protection member can be dynamically set according to the amount of rain falling, so that the efficiency of removing moisture from the surface of the protection member can be increased.

Referring to FIG. 3 , the controller 222 may dynamically set the temperature 228 of the injected air based on a comparison result of comparing the external temperature 226 of the vehicle with a preset reference temperature range 227 . .

The external temperature 226 of the vehicle may be a value measured by an external temperature sensor. The external temperature sensor may be provided around the grill or at the bottom of the bumper, but is not limited thereto. For example, the external temperature sensor may be provided at the top of the bumper.

The reference temperature range 227 may be set by a preset program, may be set by the manufacturer of the vehicle during vehicle production, or may be set by the driver of the vehicle.

The preset reference temperature range 227 is a temperature range that does not affect the transmission/reception signal of the radar, and may be a normal operating temperature range of the radar. For example, the reference temperature range 227 may be 15° C. to 35° C. as room temperature, but is not limited thereto. The reference temperature range 227 may be set to a value lower than 15°C, or set to a value higher than 35°C. Hereinafter, it is assumed that the reference temperature range 227 is 15° C. to 35° C., but is not limited thereto as described above.

The temperature 228 of the injected air is set to be the same as the external temperature 226 of the vehicle when the external temperature 226 of the vehicle is within the reference temperature range 227, and the external temperature 226 of the vehicle is within the reference temperature range When it deviates from ( 227 ), it can be set using the temperature of the vehicle's air conditioner.

When the external temperature 226 of the vehicle is within the reference temperature range 227, it may be spring or autumn in which the temperature is not very high or low. When the external temperature 226 of the vehicle is out of the reference temperature range 227 , it may be summer when the temperature is very high or winter when the temperature is very low. However, the present invention is not limited thereto, and the external temperature 226 of the vehicle may be within the reference temperature range 227 even in summer or winter, and the external temperature 226 of the vehicle may be within the reference temperature range ( 227) may be out of the way.

When the temperature 228 of the injected air is set to be the same as the external temperature 226 of the vehicle, it may mean that moisture on the surface of the protection member can be removed using the air outside the vehicle.

For example, when the external temperature 226 of the vehicle is 20° C. and is within the reference temperature range 227, the air flowing into the vehicle is sucked in, and the air is injected into the air injection nozzle through the witer tube to be injected. have.

When the temperature 228 of the injected air is set using the temperature of the air conditioner of the vehicle, it may mean that moisture on the surface of the protection member can be removed using the air of the air conditioner.

For example, when the external temperature 226 of the vehicle is 38° C. and exceeds the reference temperature range 227, cold air conditioner air of the air conditioner may be injected into the air injection nozzle through the wire tube and the air may be injected. In addition, when the external temperature 226 of the vehicle is below the reference temperature range 227 as minus 5°C, the warm heater air of the air conditioner may be injected into the air injection nozzle through the wire tube to be injected.

Therefore, the temperature 228 of the air injected to the surface of the protection member can be controlled differently depending on whether the external temperature 226 of the vehicle is within the reference temperature range 227, so that the protection member can be adjusted to the steady-state operating temperature range of the radar. This can increase the lifespan of the radar.

Figure 4 is a perspective view showing the position of the air jet nozzle according to the present embodiments, Figures 5 and 6 is a partially enlarged perspective view showing the position of the air jet nozzle according to the present embodiments.

Referring to FIG. 4 , a grill 430 may be provided in the bumper 420 , and a protection member 410 may be provided on a front surface of the grill 430 . However, the present invention is not limited thereto, and the grill 430 has a penetration region corresponding to the shape of the protection member 410 , and the protection member 410 is provided in the penetration region of the grill 430 , so that the grill 430 and may be combined.

The protection member 410 may be provided separately from the grill 430 , but is not limited thereto. For example, the protection member 410 may be provided as the grill 430 or as an emblem.

The air spray nozzle 442 included in the air sprayer 440 may be provided above the protection member 410 .

The air injection nozzle 442 may inject air injected through the wire tube 444 into the radar signal transmission region 412 in the protection member 410 . The air spray nozzle 442 may spray air in association with a wiper operation signal of the wiper 210 provided on the glass 212 .

The air jet nozzle 442 may be provided in the upper center of the protection member 410 , but is not limited thereto. For example, the air jet nozzle 442 may be provided to be biased toward either the left or right side from the upper side of the protective member 410 . In addition, a plurality of air injection nozzles 442 may be provided on the upper side and spaced apart from each other at regular intervals.

Referring to FIG. 5 , air injection nozzles 442a , 442b , and 442c may be additionally provided on the left and right sides of the protection member 410 . That is, the first air spray nozzle 442a is provided on the upper side of the protection member 410 , the second air spray nozzle 442b is provided on the left side, and the third air spray nozzle 442c is provided on the right side. have.

The second air jet nozzle 442b and the third air jet nozzle 442c may move the water on the surface of the protection member 410 to the center, and the moved water on the surface of the protection member 410 may be removed from the first air jet nozzle. may be removed in the direction of gravity by (442a).

The first air jet nozzle 44a, the second air jet nozzle 442b, and the third air jet nozzle 442c may simultaneously jet air, but is not limited thereto. For example, the second air jet nozzle 442b and the third air jet nozzle 442c first spray air to move the water on the surface of the protection member 410 to the center, and then the first air jet nozzle 44a Water on the surface of the moved protective member 410 may be removed in the direction of gravity by spraying this air.

5 illustrates that the air injection nozzles 442a , 442b , and 442c are provided on the upper side, the left side, and the right side of the protection member 410 , but is not limited thereto.

Referring to FIG. 6 , air jet nozzles 442d and 442e may be provided at both upper corners of the protection member 410 . For example, the fourth air jet nozzle 442d may be provided at one of the upper corners of the protection member 410 , and the fifth air jet nozzle 442e may be provided at the other of the upper corners.

The fourth air jet nozzle 442d and the fifth air jet nozzle 442e move the water on the surface of the protection member 410 to the center by jetting air toward the radar signal transmission region 412 in the protection member 410 . At the same time, it can be removed in the direction of gravity.

4 to 6 show the wire tube of the air jet nozzles (442, 442a, 442b, 442c, 442d, 442e) is the air jet nozzle (442, 442a, 442b, 442c, 442d, 442e) opposite to the air jet nozzle (442, 442a, 442b, 442c, 442d, 442e) Although shown as provided on the surface, it is not limited thereto. For example, the wire tube 444 may be provided on the rear surface of the air injection nozzles 442 , 442a , 442b , 442c , 442d and 442e to prevent leakage to the outside of the vehicle.

The air jet nozzle 442 may be provided in the protection member 410 , but is not limited thereto. Hereinafter, various embodiments of the position at which the air jet nozzle 442 is provided will be described with reference to the drawings.

7 is a front view showing the position of the air injection nozzle according to the present embodiments, Figure 8 is a partial enlarged front view showing the position of the air injection nozzle according to the present embodiments, Figure 9 is the air according to the present embodiments It is sectional drawing which shows the position of a spray nozzle.

Referring to FIG. 7 , the air spray nozzle 442 included in the air sprayer may be provided below the bumper 420 provided on the protection member 410 . The air injection nozzle 442 provided on the lower side of the bumper 420 may be provided to be spaced apart from the protection member 410, but is not limited thereto. For example, the air jet nozzle 442 may be provided in contact with the upper front surface of the protection member 410 .

Referring to FIG. 8 , the air spray nozzle 442 included in the air sprayer may be provided below the grill 430 provided on the protection member 410 . A grill 430 may be further provided between the protection member 410 and the bumper 420 . In this case, the air jet nozzle 442 may be provided under the grill 430 to be provided adjacent to the protection member 410 .

Referring to FIG. 9 , the air injection nozzle 442 included in the air injector may be provided on the rear surface of the emblem 930 provided on the upper portion of the protection member 410 so as not to be exposed to the outside of the vehicle.

The radar 910 is mounted in the engine room 920 , and a protection member 410 disposed in the bumper 932 may be provided in front of the radar 910 . The bumper 932 may be provided in combination with the emblem 930 protruding forward. In this case, the emblem 930 may be provided on the protective member 410 .

An air jet nozzle 422 may be provided on the rear surface of the emblem 930 , and the wire tube 444 connected to the air jet nozzle 422 may inject air. The air injection nozzle 422 is provided on the rear surface of the emblem 930, so that it may not be exposed to the outside of the vehicle. The air spray nozzle 422 provided on the rear surface of the emblem 930 may spray air on the surface of the protection member 410 to remove moisture.

Since the vehicle control apparatus according to the above-described embodiments can remove moisture from the surface of the protection member by interlocking the operation with the wiper, attenuation of the power of the radar signal and distortion of the phase caused by the moisture on the surface of the protection member are blocked and the driver It can prevent problems that may occur in the Driver Assistance System (DAS).

Hereinafter, a vehicle control method that may be performed in the vehicle control apparatus described with reference to FIGS. 1 to 9 will be briefly described once again. All or part of the operation of the vehicle control method described below may be performed by the above-described vehicle control apparatus.

10 is a flowchart illustrating a vehicle control method according to the present embodiments.

Referring to FIG. 10 , the vehicle control method includes a receiving step of receiving a wiper operation signal from a wiper provided in the vehicle ( S1000 ), and when the wiper operation signal is received, air is sprayed onto the protective member provided on the front surface of the radar signal transmission area. It may include a control step (S1010) of generating an air injection control signal to be controlled so as to be controlled and a transmission step (S1020) of transmitting the air injection control signal to the air injector.

The wiper operation signal may include information on whether the wiper operates, information on the wiper operation speed, and the like. Accordingly, by receiving the wiper operation signal in the receiving step, information on whether or not the wiper operates and the operation speed can be obtained.

When the vehicle is provided with a rain sensor, and the operation time and operation speed of the wiper provided on the windshield of the vehicle are automatically controlled by the rain sensor, the reception of the wiper operation signal in the receiving step may be received from the rain sensor. have.

The air injection control signal generated in the control step is generated based on the wiper operation signal, and may be a signal for removing moisture from the surface of the protection member provided in front of the radar.

The air jet nozzle included in the air jet may be provided above the protection member, and the air jet nozzle may be additionally provided on the left and right sides of the protection member. However, the present invention is not limited thereto, and the air jet nozzles included in the air jet may be provided at both upper corners of the protection member.

The air jet nozzle may be provided in the protection member, but is not limited thereto. The air spray nozzle included in the air sprayer may be provided under the bumper provided on the upper portion of the protective member, or may be provided under the grill provided on the upper portion of the protective member. In addition, the air injection nozzle included in the air injector may be provided on the rear surface of the emblem provided on the upper portion of the protection member so as not to be exposed to the outside of the vehicle.

11 and 12 are flowcharts illustrating a part of a vehicle control method according to the present embodiments.

Referring to FIG. 11 , in the control step, the pressure of the injected air may be dynamically set based on wiper operation speed information included in the wiper operation signal. For example, the pressure of the injected air may be increased or decreased in proportion to the operation speed of the wiper.

The control step may include checking the wiper operation speed information (S1100).

The wiper operation speed information is a value for the wiper operation speed and may vary depending on the amount of rain falling during rain. Also, the wiper operation speed information may change from a low value to a high value or from a high value to a low value according to a change in the amount of falling rain. Accordingly, the wiper operation speed information may be proportional to the amount of rain falling.

The amount of water formed on the protection member may vary depending on the amount of rain falling. In the case of drizzle, the amount of moisture on the protection member may be small, and in the case of strong showers, the amount of moisture on the protection member may be large.

The control step may include setting the pressure of the injected air (S1110).

In the control step, when the wiper operation speed information has a low value due to drizzle, the amount of moisture that forms on the protection member may be small. Therefore, the pressure of the air sprayed to the protection member is set to a small value, and a strong rain shower comes down and the wiper operation speed information is small. When α has a high value, since the amount of water formed on the protection member may be large, the pressure of the air injected into the protection member may be set to a high value.

In other words, the control step may generate an air injection control signal to increase or decrease the pressure of the injected air in proportion to the wiper operation speed information that changes according to the amount of falling rain.

Accordingly, since the pressure of the air sprayed to the surface of the protection member can be dynamically set according to the amount of rain falling, the efficiency of removing moisture from the surface of the protection member can be increased.

Referring to FIG. 12 , in the control step, the temperature of the injected air may be dynamically set based on a comparison result of comparing the external temperature of the vehicle with a preset reference temperature range.

The control step may include comparing the external temperature of the vehicle with a preset reference temperature range ( S1200 ).

The external temperature of the vehicle may be a value measured by an external temperature sensor. The external temperature sensor may be provided around the grill or at the bottom of the bumper, but is not limited thereto. For example, the external temperature sensor may be provided at the top of the bumper.

The reference temperature range may be set by a preset program, may be set by the manufacturer of the vehicle during vehicle production, or may be set by the driver of the vehicle.

The preset reference temperature range is a temperature range that does not affect the transmission/reception signal of the radar, and may be a steady-state operating temperature range of the radar. For example, the reference temperature range may be 15° C. to 35° C. as room temperature, but is not limited thereto. The reference temperature range may be set to a value lower than 15°C, or set to a value higher than 35°C. Hereinafter, it is assumed that the reference temperature range is 15° C. to 35° C., but as described above, it is not limited thereto.

The control step may include setting the temperature of the sprayed air (S1210).

The temperature of the injected air is set to be the same as the external temperature of the vehicle when the external temperature of the vehicle is within the reference temperature range. have.

Therefore, since the temperature of the air injected to the surface of the protection member can be controlled differently depending on whether the external temperature of the vehicle is within the reference temperature range, the protection member can be maintained in the normal operating temperature range of the radar, thereby increasing the life of the radar. have.

Since the vehicle control method according to the above-described embodiments can remove moisture from the surface of the protection member by interlocking the operation with the wiper, attenuation of the power of the radar signal and distortion of the phase caused by the moisture on the surface of the protection member are blocked, thereby preventing the driver from It can prevent problems that may occur in the Driver Assistance System (DAS).

The above description is merely illustrative of the technical spirit of the present disclosure, and various modifications and variations will be possible without departing from the essential characteristics of the present disclosure by those skilled in the art to which the present disclosure pertains. In addition, the present embodiments are not intended to limit the technical spirit of the present disclosure, but to explain, and thus the scope of the present technical spirit is not limited by these embodiments. The protection scope of the present disclosure should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present disclosure.

210: wiper 220: vehicle control unit
221: receiver 222: control unit
223: transmitter 230: air injector
410: protection member 412: radar signal transmission area
442: air jet nozzle 444: wire tube
420: bumper 430: grill

Claims (14)

a receiver configured to receive a wiper operation signal from a wiper provided in the vehicle;
a control unit generating an air injection control signal for controlling the air to be injected to the protection member provided on the front surface of the radar signal transmission area when the wiper operation signal is received; and
and a transmitter configured to transmit the air injection control signal to an air injector. According to claim 1,
The control unit is
The vehicle control apparatus of claim 1, wherein the pressure of the injected air is dynamically set based on wiper operation speed information included in the wiper operation signal. 3. The method of claim 2,
The pressure of the injected air is,
The vehicle control device, characterized in that the increase or decrease in proportion to the operation speed of the wiper. According to claim 1,
The control unit is
and dynamically setting the temperature of the injected air based on a comparison result of comparing the external temperature of the vehicle with a preset reference temperature range. 5. The method of claim 4,
The temperature of the sprayed air is,
If the external temperature of the vehicle is within the reference temperature range, it is set to be the same as the external temperature of the vehicle,
When the external temperature of the vehicle is out of the reference temperature range, the vehicle control device is set using a temperature of the air conditioner of the vehicle. According to claim 1,
The air jet nozzle included in the air jet is,
The vehicle control device, characterized in that provided on the upper side of the protection member. 7. The method of claim 6,
The air jet nozzle,
The vehicle control device, characterized in that it is further provided on the left and right sides of the protection member. According to claim 1,
The air jet nozzle included in the air jet is,
The vehicle control device, characterized in that provided at both upper corners of the protection member. According to claim 1,
The air jet nozzle included in the air jet is,
The vehicle control device, characterized in that provided below the bumper provided on the upper portion of the protection member. According to claim 1,
The air jet nozzle included in the air jet is,
The vehicle control device, characterized in that provided below the grill provided on the upper portion of the protection member. According to claim 1,
The air jet nozzle included in the air jet is,
The vehicle control device, characterized in that provided on the rear surface of the emblem provided on the upper portion of the protection member is not exposed to the outside of the vehicle. a receiving step of receiving a wiper operation signal from a wiper provided in the vehicle;
a control step of generating an air injection control signal for controlling the air to be injected to the protection member provided on the front surface of the radar signal transmission area when the wiper operation signal is received; and
and a transmitting step of transmitting the air injection control signal to an air injector. 13. The method of claim 12,
The control step is
The vehicle control method according to claim 1, wherein the pressure of the injected air is dynamically set based on wiper operation speed information included in the wiper operation signal. 13. The method of claim 12,
The control step is
Based on a comparison result of comparing the external temperature of the vehicle with a preset reference temperature range, the vehicle control method, characterized in that the temperature of the injected air is dynamically set.

Images