KR20140127474A - Method of supporting a driver - Google Patents

Method of supporting a driver Download PDF

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Publication number
KR20140127474A
KR20140127474A KR1020130045816A KR20130045816A KR20140127474A KR 20140127474 A KR20140127474 A KR 20140127474A KR 1020130045816 A KR1020130045816 A KR 1020130045816A KR 20130045816 A KR20130045816 A KR 20130045816A KR 20140127474 A KR20140127474 A KR 20140127474A
Authority
KR
South Korea
Prior art keywords
sun visor
sun
light
amount
variable
Prior art date
Application number
KR1020130045816A
Other languages
Korean (ko)
Inventor
김명우
김경원
Original Assignee
주식회사 만도
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1020130045816A priority Critical patent/KR20140127474A/en
Publication of KR20140127474A publication Critical patent/KR20140127474A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/02—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in position
    • B60J3/0204—Sun visors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/06—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles using polarising effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors

Abstract

The driving assistance device is started. The driving assist system includes a sun visor, a sun visor driving unit for moving the sun visor from an initial position to a light shielding position, a sensing unit for sensing a sun position, The sun visor driving unit is controlled based on the sun position sensed by the sensing unit. When the sun visor falls to the shade position, the sun visor is moved to the sun visor to reduce glare caused by the amount of light entering the sun visor. And a control unit for controlling the light amount adjusting unit based on the sun position sensed by the sensing unit to adjust the amount of light entering the visor.

Description

[0001] The present invention relates to a method of supporting a driver,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a driving assistance device, and more particularly, to a driving assistance device capable of securing a driver's view from sunlight.

Generally, a sun visor is installed on a front upper surface of a driver's seat or an assistant seat to shield sunlight transmitted from the front surface of the vehicle. The sun visor is used to prevent the sunlight from interfering with the field of view when the sun is in front of the vehicle.

If the sun is in front of the driver during driving, the driver visually checks the sun visor to ensure visibility due to sunshine.

However, the sun visor can block the sunlight to ensure visibility, but it is difficult to ensure the visibility of the sun visor.

In recent years, a technique has been developed in which an area covered by a sun visor is captured through a camera and displayed on a sun visor so as to secure an obscured view.

However, the method of photographing the area obscured by the sun visor and displaying it on the sun visor can secure a field of view obscured by the sun visor, but there is still a problem in that sun visibility due to sunlight still occurs when the sun is located in front of the vehicle have.

In order to prevent this problem, sun visors are conventionally used for sun visors to alleviate the visual disturbance. However, since the brightness is uniformly reduced, the bright areas are also darkened and the field of view is limited.

The embodiment of the present invention is intended to provide a driving assistance device that more effectively prevents eye blindness due to sunlight, while securing a field of view for an area obscured by the sun visor.

According to an aspect of the present invention, there is provided a sun visor comprising: a sun visor; A sun visor driver for moving the sun visor from an initial position to a light shielding position; A sensing unit for sensing a sun position; A light amount adjusting unit for adjusting an amount of light entering the sun visor from the sun; The sun visor driving unit is controlled based on the sun position sensed by the sensing unit, and when the sun visor comes down to the light shielding position, the sun visor is moved to the sun visor in order to reduce glare due to the amount of light introduced into the sun visor from the sun. And a controller for controlling the light amount controller based on the sun position sensed by the sensing unit so as to adjust an amount of incoming light.

The variable light intensity adjusting unit may include a plurality of polarizing films having varying density and overlapping each other, and a variable ND filter unit for adjusting the amount of transmitted light by rotating at least one polarizing film among the plurality of polarizing films. ).

The light guide may include a plurality of variable ND filter portions, and the plurality of variable ND filter portions may be disposed corresponding to the plurality of view regions. have.

In addition, the sensing unit may include at least one of an image sensor and a solar sensor.

According to another aspect of the present invention, there is provided a sun visor comprising: a sun visor; A sun visor driver for moving the sun visor from an initial position to a light shielding position; A sensing unit for sensing the solar intensity and the sun position; A variable ND filter that adjusts the amount of light that enters from the sun to the sun visor and includes a plurality of polarizing films having different concentrations and overlapping each other and that controls the amount of light transmitted through rotating at least one polarizing film among the plurality of polarizing films; (Variable Neutral Density filter unit); And controls the sun visor driving unit on the basis of the solar intensity and the sun position sensed by the sensing unit. When the sun visor comes down to the shading position, the sun visor is moved to the sun visor to reduce glare due to the amount of light entering the sun visor. And a control unit for controlling the variable ND filter unit based on the solar intensity and the sun position sensed by the sensing unit to adjust the amount of light entering the sun visor.

The visor may be divided into a plurality of field zones, and the plurality of variable ND filter units may be arranged to correspond to the plurality of field zones.

According to another aspect of the present invention, there is provided a sun visor comprising: a sun visor; A sun visor driver for moving the sun visor from an initial position to a light shielding position; A sensing unit for sensing a sun position; A Variable Neutral Density filter unit for adjusting the amount of light entering the sun visor from the sun by a polarizing film; The sun visor driving unit is controlled based on the sun position sensed by the sensing unit, and when the sun visor comes down to the light shielding position, the sun visor is moved to the sun visor in order to reduce glare due to the amount of light introduced into the sun visor from the sun. And a control unit for controlling the variable ND filter unit based on the sun position sensed by the sensing unit to adjust the amount of incoming light.

The variable ND filter unit may include a plurality of polarizing films having a change in concentration and overlapping each other and a filter driving unit for rotating at least one polarizing film of the plurality of polarizing films so that the amount of light transmitted through the plurality of polarizing films is adjusted .

The visor may be divided into a plurality of field zones, and the plurality of variable ND filter units may be arranged to correspond to the plurality of field zones.

The embodiment of the present invention uses a transparent sun visor that is transparent to sunlight and reduces the amount of sunlight that enters the area where the sun is located among the plurality of sight areas of the sun visor, so that a view of the area obscured by the sun visor can be secured At the same time, it is possible to more effectively prevent the blindness caused by the sunlight.

1 is a configuration diagram of an electric sun visor of a driving assistance device according to an embodiment of the present invention.
2 is a view for explaining that a motorized sun visor of a driving assistance device according to an embodiment of the present invention is installed on a ceiling near a vehicle window.
3 is a view for explaining that a driver's view is secured by a sun visor made of a transparent material in the driving assistance device according to the embodiment of the present invention.
4 is a control block diagram of a driving assistance device according to an embodiment of the present invention.
5 is a view for explaining a light amount adjusting unit for adjusting an amount of light entering a sun visor in a driving assistance device according to an embodiment of the present invention.
6 is a view for explaining that the light amount of the sunvisor is adjusted in the driving assistance device according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are provided by way of example so that those skilled in the art will be able to fully understand the spirit of the present invention. The present invention is not limited to the embodiments described below, but may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

The expression "and / or" is used herein to mean including at least one of the elements listed before and after. Also, the expression "coupled / connected" is used to mean either directly connected to another component or indirectly connected through another component. The singular forms herein include plural forms unless the context clearly dictates otherwise. Also, components, steps, operations and elements referred to in the specification as " comprises "or" comprising " refer to the presence or addition of one or more other components, steps, operations, elements, and / or devices.

1 is a configuration diagram of a driving assistance device according to an embodiment of the present invention.

Referring to FIG. 1, the driving assistance device may include a sun visor 10 and a motor 20.

The sun visor 10 is a plate-shaped transparent material that can transmit light.

The sun visor 10 is provided with a pivot shaft 11 on the side surface thereof and the pivot shaft 11 is supported by a support member 12 provided on the ceiling of the destination.

The turning shaft 11 of the sun visor 10 is connected to the motor 20 by the driven gear 13 and the driven gear 14 meshed with each other so as to be rotatable by the motor 20.

The sun visor 10, the rotary shaft 11, the support member 12, the spur gear 13, the driven gear 14, and the motor 20 constitute a power sun visor.

When the motor 20 rotates in one direction, the driven gear 13 connected to the drive shaft of the motor 20 and the driven gear 14 engaged with the driven gear 13 ). As the two meshed gears 13 and 14 rotate, the rotation axis of the sun visor 10 rotates and the sun visor 10 descends from the top to the bottom according to the rotation of the rotation shaft. This is the state in which the sun visor 20 is operated to cover the sunlight.

On the other hand, when the motor 20 rotates in the opposite direction, the main gear 13, the driven gear 14, and the pivot shaft 11 connected to the drive shaft of the motor 20 sequentially rotate and the sun visor 10 It is lifted from the bottom to the top. This is because the sun visor 20 is not required to be covered with sunlight.

2 is a view for explaining that a motorized sun visor of a driving assistance device according to an embodiment of the present invention is installed on a ceiling near a vehicle window. 3 is a view for explaining that a driver's view is secured by a sun visor made of a transparent material in the driving assistance device according to the embodiment of the present invention.

2 and 3, the electric sun visor is installed on the ceiling near the vehicle window.

The sun visor 10 of the electric sun visor is made of a transparent material so that the driver can see the landscape including the sun S outside the vehicle window W. [

The driver can secure visibility even for the portion shielded by the sun visor through the sun visor 10 of transparent material.

4 is a control block diagram of a driving assistance device according to an embodiment of the present invention.

4, the driving assistance apparatus includes a sensing unit 30, a control unit 40, a sun visor driving unit 50, and a light amount control unit 60. [

The sensing unit 30 senses the sun position. In addition, the sensing unit 30 can sense the solar intensity along with the sun position. The sensing unit 30 may include an image sensor 31 and / or a solar sensor 32. The image sensor 31 may be a camera and transmits information related to the sun position and the camera exposure time to the control unit 40. The solar sensor 32 transmits information relating to the sun position and the solar intensity to the control unit 40.

The sun visor driving unit 50 rotates the motor 20 in one direction or the opposite direction to lower the sun visor 10 from the initial position to the light shield position or raises the sun visor 10 from the light shield position to the initial position.

The light amount adjusting unit 60 adjusts the amount of light that flows into the sun visor 10 from the sun.

The control unit 40 performs overall control of the driving assist system.

In addition, the control unit 40 senses the sun position and / or the solar intensity through the sensing unit 30. The control unit 40 analyzes information related to the sun position and the camera exposure time sensed through the image sensor 31 to recognize the sun position and the solar intensity. In addition, the control boom 40 recognizes the sun position and the solar intensity, which are analyzed with respect to the sun position sensed through the solar sensor 32 and the solar intensity.

When the sun visor 10 needs to be lowered due to the possibility that the sun visor of the driver may occur as a result of recognizing the sun position and the solar intensity, the control unit 40 drives the motor 20 through the sun visor driving unit 50 Thereby lowering the sun visor 10 from the initial position to the shielding position.

Then, the control unit 40 determines whether it is necessary to adjust the amount of light incident on the sun visor 10 from the sun based on the sun position and the solar intensity recognition result. The control unit 40 reduces the amount of light incident on the sun visor 10 through the light amount control unit 60 to reduce the driver's glare when it is necessary to adjust the amount of light incident on the sun visor 10 from the result of the determination.

5 is a view for explaining a light amount adjusting unit for adjusting an amount of light entering a sun visor in a driving assistance device according to an embodiment of the present invention.

5, the light amount control unit 60 divides the viewing area of the sun visor 10 into a plurality of areas A, B, and C in the longitudinal direction (lateral direction) Can be adjusted.

For example, the light amount control unit 60 may include a plurality of variable neutral density filter units 61, 62, and 63.

The ND filter is a filter that reduces the amount of light entering the sun visor 10. The variable ND filter is a filter capable of adjusting the amount of light introduced into the sun visor 10.

The variable ND filter may be a structure in which two polarizing films having a change in density are overlapped and the polarizing film is rotated by a filter driving unit that rotates one of the two polarizing films to adjust the density. It is possible to control the amount of light entering the sun visor 10 in such a manner that as the concentration of the two polarizing films overlap, the amount of light transmitted decreases and the amount of light transmitted increases as the concentration of the overlapping portions decreases have.

The variable ND filter units 61, 62, 63 are provided between the sun visor 10 and the vehicle window and are respectively disposed corresponding to the plurality of view areas of the sun visor. The variable ND filter unit adjusts the amount of light by adjusting the concentration according to the sun position and the solar intensity in each view area in accordance with the control signal of the controller 40.

For example, the variable ND filter units 61, 62, and 63 are operated at 50% density so that the sun is not located and / or the sun visor 10 has a sun strength higher than the reference value, do. Accordingly, only a light amount reduced by 50% can be transmitted, compared with a case where the total amount of light transmitted without shading is 0%, and a light amount reduced by 1/2 is introduced into the sun visor 10.

Also, the variable ND filter units 61, 62, and 63 are operated at a 25% concentration in the region where the solar intensity is higher than the reference value. Accordingly, only a light amount reduced by 25% than that when the concentration is 0% can be transmitted, and a light amount reduced by 1/4 is introduced into the sun visor 10.

On the other hand, the variable ND filter units 61, 62, and 63 are operated at a 0% concentration in a region where the sun is not located and the sun strength is weak. Accordingly, the entire amount of light can be transmitted, and the light amount of the entire amount is introduced into the sun visor 10.

6 is a view for explaining that the light amount of the sunvisor is adjusted in the driving assistance device according to the embodiment of the present invention.

6, when the sun S is located in the C region in the three viewing regions A, B, and C of the sun visor 10 and the solar intensity is highest in the C region and then in the B region, The variable ND filter portion 61 corresponding to the A region of the visor 10 is operated at a 0% concentration and the variable ND filter portion 62 corresponding to the B region operates at a 25% concentration And the variable ND filter portion 63 corresponding to the C region is operated at a 50% concentration which is darker than the 25% concentration.

Therefore, the largest amount of light is shielded in the C region, and the light amount in the region B is shielded less than the C region. As a result, the driver's glare can be minimized because the light intensity is gradually reduced from the high solar intensity to the low solar intensity.

10: Sun visor 20: Motor
30: sensing unit 31: image sensor
32: Solar sensor 40: Control unit
50: sun visor driving part 60: light amount adjusting part
61, 62, 63: variable ND filter unit

Claims (9)

Sun visor;
A sun visor driver for moving the sun visor from an initial position to a light shielding position;
A sensing unit for sensing a sun position;
A light amount adjusting unit for adjusting an amount of light entering the sun visor from the sun;
The sun visor driving unit is controlled based on the sun position sensed by the sensing unit, and when the sun visor comes down to the light shielding position, the sun visor is moved to the sun visor in order to reduce glare due to the amount of light introduced into the sun visor from the sun. And a control unit for controlling the light amount adjusting unit based on a sun position sensed by the sensing unit to adjust an amount of light to be introduced. The method according to claim 1,
Wherein the light amount control unit includes a variable neutral density filter unit that includes a plurality of polarizing films having a change in density and which are overlapped with each other and adjusts the amount of light transmitted through rotating at least one polarizing film among the plurality of polarizing films Included driving assistance devices. 3. The method of claim 2,
The sun visor is divided into a plurality of view areas,
Wherein the light amount adjusting unit includes a plurality of variable ND filter units, and the plurality of variable ND filter units are arranged corresponding to each of the plurality of view areas. 4. The method according to any one of claims 1 to 3,
Wherein the sensing unit includes at least one of an image sensor and a solar sensor. Sun visor;
A sun visor driver for moving the sun visor from an initial position to a light shielding position;
A sensing unit for sensing the solar intensity and the sun position;
A variable ND filter that adjusts the amount of light that enters from the sun to the sun visor and includes a plurality of polarizing films having different concentrations and overlapping each other and that controls the amount of light transmitted through rotating at least one polarizing film among the plurality of polarizing films; (Variable Neutral Density filter unit);
And controls the sun visor driving unit on the basis of the solar intensity and the sun position sensed by the sensing unit. When the sun visor comes down to the shading position, the sun visor is moved to the sun visor to reduce glare due to the amount of light entering the sun visor. And a control unit for controlling the variable ND filter unit based on the solar intensity and the sun position sensed through the sensing unit to adjust the amount of light entering the sun visor. 6. The method of claim 5,
The sun visor is divided into a plurality of view areas,
Wherein the variable ND filter unit includes a plurality of variable ND filter units and the plurality of variable ND filter units are arranged corresponding to each of the plurality of view areas. Sun visor;
A sun visor driver for moving the sun visor from an initial position to a light shielding position;
A sensing unit for sensing a sun position;
A Variable Neutral Density filter unit for adjusting the amount of light entering the sun visor from the sun by a polarizing film;
The sun visor driving unit is controlled based on the sun position sensed by the sensing unit, and when the sun visor comes down to the light shielding position, the sun visor is moved to the sun visor in order to reduce glare due to the amount of light introduced into the sun visor from the sun. And a control unit for controlling the variable ND filter unit based on a sun position sensed by the sensing unit to adjust an amount of incoming light. 8. The method of claim 7,
Wherein the variable ND filter unit includes a plurality of polarizing films having a change in concentration and overlapping each other and a filter driving unit for rotating at least one polarizing film of the plurality of polarizing films so that the amount of light transmitted through the plurality of polarizing films is adjusted, Device. 9. The method of claim 8,
The sun visor is divided into a plurality of view areas,
Wherein the variable ND filter unit includes a plurality of variable ND filter units and the plurality of variable ND filter units are arranged corresponding to each of the plurality of view areas.
KR1020130045816A 2013-04-25 2013-04-25 Method of supporting a driver KR20140127474A (en)

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Applications Claiming Priority (1)

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KR1020130045816A KR20140127474A (en) 2013-04-25 2013-04-25 Method of supporting a driver

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016093535A1 (en) * 2014-12-10 2016-06-16 엘지전자 주식회사 Vehicle display device and vehicle comprising same
KR20160070527A (en) * 2014-12-10 2016-06-20 엘지전자 주식회사 Driver assistance apparatus and Vehicle including the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016093535A1 (en) * 2014-12-10 2016-06-16 엘지전자 주식회사 Vehicle display device and vehicle comprising same
KR20160070527A (en) * 2014-12-10 2016-06-20 엘지전자 주식회사 Driver assistance apparatus and Vehicle including the same
US10086762B2 (en) 2014-12-10 2018-10-02 Lg Electronics Inc. Vehicle display device and vehicle comprising same

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