KR20160092819A - Camera Apparatus of Advanced Driver Assist System for Vehicles - Google Patents

Abstract

The present invention relates to a camera apparatus for a driver assist system of a vehicle. More specifically, the system comprises: a windshield bracket unit fixed on the inner surface of a windshield glass; a camera module combined on the inner surface of the windshield glass by the medium of the windshield bracket unit, and combined with the windshield bracket unit in the lower part of the windshield bracket unit to be vertically tilted within a specific angle range with respect to a front or rear end part as a first rotational center; and a vision angle adjustment unit tilting the front or rear end of the camera module with respect to the inner surface of the windshield glass to adjust a capturing angle of the camera module as a setting angle with respect to a slanted surface of the windshield glass different from each vehicle model, so as to fix the camera module to the windshield bracket unit. Thus, the camera apparatus is commonly mounted on the slanted surface of the windshield glass different from each vehicle model.

Description

Technical Field [0001] The present invention relates to a camera apparatus for a driver assistance system of a vehicle,

The present invention relates to a camera apparatus for a driver assistance system of a vehicle, and more particularly, to a camera apparatus for a driver assistance system of a vehicle, which can be commonly mounted corresponding to an inclined surface of a windshield glass different for each vehicle type at the time of leaving the vehicle, And more particularly, to a camera device for a driver assistance system of a vehicle which can be corrected.

Recently, as interest in autonomous vehicles increases, researches on sensors mounted on autonomous vehicles are actively under way. There are cameras, infrared sensors, radar, GPS, lidar, and gyroscope that are mounted on the autonomous vehicle. Among them, the camera occupies an important position as a sensor to replace the human eye.

On the other hand, among the cameras provided in the vehicle, the stereo camera can be used for detecting the distance to the obstacle by using the disparity map. Such a stereo camera includes a plurality of components including two camera lenses, and a space for accommodating the components is required. In addition, due to the heat generated from the plurality of parts, a problem may arise in image processing in the camera. Therefore, it is necessary to research and develop the space and the heat treatment in which the parts are positioned in the camera.

On the other hand, in general, a stereo camera is mounted on a windshield glass of a vehicle. The windshield glass of a vehicle has a different design for each type of vehicle, and its inclination angle and curvature are different for each type of vehicle. However, the stereoscopic camera should not be moved any more after the stereoscopic camera is fixed accurately so that the camera angle of the camera lens is set within an allowable error range in driving the disparity map when the stereoscopic camera is mounted on the windshield glass of the vehicle, Even if the angle of camera is changed by vibration or shaking during running of the vehicle, it should not deviate at least from the above-mentioned error category.

Therefore, when the stereo camera is mounted, the mounters must be mounted differently according to the inclination angle and the curvature of the windshield glass of the vehicle, which is different for each vehicle type. .

In addition, when a stereo camera is produced according to each type of vehicle, since the production line or the production process must be different in a mass production system, the cost may increase in the name of facility investment or the like.

Further, when the photographing angle of the stereo camera is out of the above-described error range due to vibration or fluctuation during running of the vehicle, a correction operation by a specialist is required, which leads to a problem of visiting a nearest service center as a consumer.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a camera device for a driver assistance system of a vehicle which can be installed in common use for each vehicle type.

A preferred embodiment of a camera device for a driver assistance system of a vehicle according to the present invention comprises a windshield bracket portion fixed to an inner surface of a windshield glass and a windshield bracket portion coupled to an inner surface of the windshield glass via the windshield bracket portion, A camera module coupled to the windshield bracket portion so as to be vertically tiltable within a predetermined angle with either one of a front end portion and a rear end portion as a first rotation center in a lower portion of the windshield bracket portion; Or rear end of the windshield glass is tilted with respect to the inner surface of the windshield glass to adjust an angle of photographing of the camera module with respect to an inclined surface of the windshield glass different for each vehicle type so as to set the camera module to the windshield bracket And an angle of view fixing unit for fixing the angle of view.

Here, the angle of view fixing portion may be such that the tip of the angle-of-view fixing portion supports an end portion (hereinafter, referred to as a "support end portion") of the camera module that faces the end portion of the first rotation center, and is rotatably screwed to the windshield bracket portion And an adjusting screw.

The adjustment screw may tilt the angle of the camera module with respect to the first rotation center of the camera module by one pitch of the male screw threads formed on the outer circumferential surface for each rotation.

In addition, the windshield bracket portion may be provided with a tilting guide portion for guiding the tilting of the support end portion so that the support end portion is received and moved up and down, and the adjustment screw may be screwed to the tilting guide portion.

In addition, hinge protrusions may be provided at left and right ends of the camera module, respectively. The hinge protrusions may be formed at the windshield bracket portion so that the hinge protrusions are received and hooked downward.

The windshield bracket includes a first elastic member elastically supporting the hinge protrusion of the camera module so that the protrusion of the hinge protrusion of the camera module is retained by the fixed end, and a second elastic member supporting the supporting end of the camera module downward An elastic member may further be provided.

When the camera angle of the camera module fixed by the angle-of-view fixing unit is changed due to vibration or shaking during running of the vehicle, the camera module is rotated left and right and up and down with respect to the running direction of the vehicle And an image angle correcting unit for correcting an image capturing angle of the camera module in operation.

The windshield bracket includes a fixing bracket fixed to the inner surface of the windshield glass, and a rotation bracket coupled to the camera module and having left and right ends parallel to the lower surface of the fixing bracket, .

The angle of view correcting unit may include a horizontal correcting unit for horizontally correcting the turning bracket with respect to the fixed bracket with respect to the running direction of the vehicle and a turning unit for turning the turning bracket about the vehicle And a vertical correction unit for vertically rotating with respect to the running direction with respect to the first rotation center.

In addition, the horizontal correction unit may include a rotation guide having a rack-shaped rack having an arc-shaped rack having a same second rotation center as that of the rotation bracket provided on one side thereof, projecting from the lower surface of the fixing bracket toward the upper surface of the rotation bracket, And a rotation driving unit provided on an upper surface of the rotation bracket for rotating the pinion gear unit so as to be engaged with the rack gear stage of the rotation guide.

The rotation driving unit may include a drive motor having a motor shaft having a worm gear and a pinion gear having a worm wheel gear meshed with the worm gear and a pinion gear meshed with the rack gear stage, .

The fixing bracket may further include a rotation center projection projecting through the rotation bracket corresponding to the second rotation center of the rotation bracket and a rotation center projection projecting from the rotation bracket at least at two positions spaced apart from the second rotation center of the rotation bracket. A rotation guide protrusion may be formed.

In addition, the pivotal bracket may be formed with a circular central hole into which the rotation center projection is inserted, and a slot-shaped guide hole into which the rotation guide projection is inserted.

The vertical correction unit may include: a vertical rack gear unit vertically vertically formed on a front end of the camera module; and a vertical rack gear unit provided on a lower surface of the pivot bracket and engaged with the upper and lower rack gear units, And a vertical driving unit that provides a driving force to vertically rotate the driving unit.

The worm gear is rotatably engaged with the worm wheel. The worm gear is rotatably engaged with the worm wheel. The worm gear is rotatably coupled to the worm gear, And a transmission gear for vertically tilting the transmission gear.

The horizontal correcting unit and the vertical correcting unit may be automatically operated to have the setting angle when an imaging angle of the camera module has a predetermined error angle at the setting angle.

According to a preferred embodiment of the camera device for a driver assistance system of a vehicle according to the present invention, the following various effects can be achieved.

First, since the camera module can be commonly mounted on the inclined surface of the inner surface of the windshield glass which is different for each vehicle type by using the angle-of-view adjustment unit, the product can be shared.

Second, since the camera module can be automatically corrected even when the camera angle of the camera module is changed due to vibration or vibration generated during driving of the vehicle, the convenience of the user can be improved.

Third, since the optimum angle of camera module can be maintained at any time, it is possible to prevent a safety accident from occurring.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an appearance of a vehicle in which a camera device for a driver assistance system of a vehicle according to the present invention is mounted.
2 is a perspective view and an enlarged perspective view showing a windshield bracket unit that mediates installation of a camera device for a driver assistance system of a vehicle according to the present invention,
3 is a perspective view showing a state in which the camera module is mounted on the windshield bracket portion,
Fig. 4 is an exploded perspective view of Fig. 3,
5 is a perspective view and an enlarged perspective view showing a part of a horizontal correction unit in the configuration of a camera device for a driver assistance system of a vehicle according to the present invention,
6A and 6B are perspective views illustrating an operation of the horizontal correction unit,
7A and 7B are a perspective view and an enlarged perspective view, respectively, showing a part of a vertical correction unit in the configuration of a camera device for a driver assistance system of a vehicle according to the present invention,
8A and 8B are side views showing the operation of the vertical corrector,
FIG. 9 is a side view showing a process of assembling a camera module to a windshield bracket part of a camera device for a driver assistance system of a vehicle according to the present invention,
10 is a cross-sectional view taken along the line FGH in Fig. 9 (d).

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a camera device for a driver assistance system of a vehicle according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view of a windshield bracket unit for mediating installation of a camera device for a driver assistance system of a vehicle according to the present invention; FIG. 3 is a perspective view showing a state where the camera module is mounted on the windshield bracket portion, and FIG. 4 is an exploded perspective view of FIG. 3. FIG.

1 to 4, a preferred embodiment of the camera device 100 for a driver assistance system of a vehicle according to the present invention includes a windshield bracket portion The camera module 70 and the camera module 70 which are coupled to the inner surface of the windshield glass 10 via the windshield bracket 50 and the windshield bracket 50 are tilted so that the windshield glass 10 And an angle-of-view fixing part 300 for adjusting and fixing the photographing angle of the camera module 70 corresponding to the inclined plane.

Here, it is natural that the windshield glass 10 may be a front windshield glass disposed at the front portion of the vehicle 1, and may also be a rear windshield glass disposed at the rear portion of the vehicle 1. [ For example, when a front camera module for photographing the front part in the running direction of the vehicle 1 is mounted, it means a front windshield glass. When a rear camera module for photographing the rear part of the vehicle 1 is mounted Naturally it could mean rear windshield glass.

The upper surface of the windshield bracket portion 50 is formed flat like an inner surface of the windshield glass 10 so that the windshield bracket portion 50 is in contact with and fixed to the inner surface of the windshield glass 10, ) Can be formed.

Particularly, as described later, tilting guide portions 210A and 210B and a fixed end 250 for coupling the front end portion and the rear end portion of the camera module 70 can be formed in the connection end portions, It is natural that a plurality of screw fastening bushes capable of screwing the module 70 to the windshield bracket portion 50 can be formed. The tilting guide portions 210A and 210B and the fixed end 250 will be described later in detail.

4, the camera module 70 includes a lens module frame 71 to which a pair of lenses 72A and 72B are mounted so as to be spaced apart from each other by a predetermined distance from the lens module frame 71, And a mounting frame 73 having hinge protrusions 77A, 77B formed on the left and right ends thereof.

As described above, the lens module frame 71 is provided with a pair of lenses 72A and 72B spaced apart from each other by a predetermined distance. Inside the lens module frame 71, a pair of lenses 72A and 72B And serves to sense the light converged through the pair of lenses 72A and 72B.

The lens module frame 71 serves to fix the pair of lenses 72A and 72B so as not to flow after being once mounted and more specifically to allow the camera module 70 to form a certain angle of view And to make the initial setting.

The mounting frame 73 provides a portion on which the lens module frame 71 is mounted and the whole of the camera module 70 with respect to the windshield bracket portion 50 after the lens module frame 71 is mounted And to mediate coupling.

More specifically, the mounting frame 73 is provided with a lighting guide (not shown) in which the above-described lens module frame 71 is seated and guides the light through the pair of lenses 72A and 72B 230A and 230B are formed at positions surrounding the pair of lenses 72A and 72B and a pair of support end portions 74A and 74B formed at the front end portion are protruded forward to be spaced apart from each other by a predetermined distance, The pair of hinge protrusions 77A and 77B formed at the rear end portion may be formed on both the left and right ends.

The lighting guides 230A and 230B may be integrally formed with the mounting frame 73 but are not limited thereto and the specifications and shapes of the lenses 72A and 72B provided in the lens module frame 71, It may be separately manufactured to perform the most suitable function and fixed to the mounting frame 73.

The camera module 70 may be provided with seat portions 75A and 75B for engaging the lighting guides 230A and 230B and the pair of lenses 72A and 72B may be provided on the windshield bracket portion 50 And lens receiving holes 240A and 240B for receiving and receiving can be formed.

The pair of support end portions 74A and 74B are connected to the tilting guide portions 210A and 210B formed in the windshield bracket portion 50 to be described later when the camera module 70 is tilted by the angle of view angle fixing portion 300 And is guided to receive the tilting. The tilting guide portions 210A and 210B are formed in a groove shape such that the support end portions 74A and 74B of the camera module 70 are inserted from the rear upper side to the front lower side along the inclined surface of the windshield glass 10, The adjusting screws provided in the angle-of-view fixing portion 300 are engaged with the supporting end portions 74A and 74B which are inserted and received inside the tilting guide portions 210A and 210B in the direction orthogonal to the insertion direction of the supporting end portions 74A and 74B, So as to be tilted.

The pair of hinge protrusions 77A and 77B are engaged with the fixed end 250 formed in a windshield bracket portion to be described later and at the same time when the camera module 70 is tilted by the angle of view fixing portion 300 And becomes the first rotation center 77.

4, the windshield bracket unit 50 includes a fixing bracket 270 fixed to the inner surface of the windshield glass 10 and a fixing bracket 270 fixed to the camera module 70 and having left and right ends fixed And a pivot bracket 200 disposed so as to be parallel to the lower surface of the bracket 270.

Here, the fixed bracket 270 and the pivotal bracket 200 should not be arbitrarily moved by vibration or shaking of the vehicle body generated during traveling of the vehicle 1, . That is, the pivot bracket 200 should be fixed to the fixing bracket 270 without being interposed therebetween unless it is pivotable relative to the fixing bracket 270 or when the angle of view by the angle-of-view correction units 400 and 500 to be described later is corrected.

5A and 5B are a perspective view and an enlarged perspective view showing a part of the horizontal correction unit 400 in the configuration of a camera apparatus for a driver assistance system of a vehicle according to the present invention. 7A and 7B are a perspective view and an enlarged perspective view, respectively, showing a part of a vertical correction unit 500 in the configuration of a camera device for a driver assistance system of a vehicle according to the present invention, and Figs. 8A and 8B are vertical cross- 9 is a side view showing a process of joining the camera module 70 to the windshield bracket part 50 of the camera device for the driver assistance system of the vehicle according to the present invention. And Fig. 10 is a cross-sectional view taken along line FGH in Fig. 9 (d).

5 to 10, the angle of view angle fixing part 300 is formed on the inclined surface of the windshield glass 10, which is different for each vehicle type, according to a preferred embodiment of the camera device 100 for a driver assistance system of a vehicle according to the present invention, So that the camera module 70 can be commonly mounted on the camera module 70.

More specifically, the front windshield glass 10 is disposed at a front portion of the vehicle so as to be inclined downward at a predetermined angle toward the front, and the rear windshield glass 10 is inclined downward at a predetermined angle toward the rear of the vehicle .

Meanwhile, since the currently-marketed automobiles have different designs for each vehicle model, the front windshield glass 10 and the rear windshield glass 10 have different inclined surfaces due to different designs. In the conventional camera module 70, There is a problem in that it must be manufactured in a separate process corresponding to each inclined surface of the windshield glass 10.

A preferred embodiment of the camera device 100 for a driver assistance system of a vehicle according to the present invention is a camera module 70 mounted on an inclined surface of a windshield glass 10 different from vehicle to vehicle in order to solve the above- The angle of view of the camera module 70 is adjusted to a setting angle and fixed using the angle of view angle fixing unit 300 described above.

Here, the setting angle of the camera module 70 means an angle of view that is set to the most preferable angle in detecting an obstacle by using the disparity map. It is preferable to set the photographing angle to a degree that allows close-up image processing.

The angle-of-view fixing unit 300 serves to set the photographing angle of the camera module 70 by tilting any one of the front end portion or the rear end portion of the camera module 70 with respect to the inner surface of the windshield glass 10 do.

In the preferred embodiment of the present invention, the hinge protrusions 77A and 77B provided at the rear end of the camera module 70, which is tilted by the angle of view angle fixing unit 300, become the first rotation center 77 The support end portions 74A and 74B provided at the front end portion are vertically rotated about the first rotation center 77. [

8A and 8B, the angle-of-view fixing unit 300 supports the support end portions 74A and 74B whose tip forms the first rotation center 77 of the camera module 70, (Which may be used in the same sense as the reference numeral 300 indicating the angle of view angle), which is rotatably screwed to the arm 50,

The adjustment screw may be provided as a general screw, and may be a specially manufactured screw for adjusting the angle of camera module 70 to a setting angle as in the preferred embodiment of the present invention.

Although not shown in the drawings, the adjusting screw is screwed into the tilting guide portions 210A and 210B and is inserted into the side provided with the support end portions 74A and 74B when rotated in the right screw direction, When rotated, is released in the opposite direction of the side on which the support end portions 74A, 74B are provided.

Here, male thread (not shown) is formed on the adjustment screw, and it is a matter of course that a female thread (not shown) is formed in a portion of the tilting guide portions 210A, 210B where the adjustment screw is fastened. The adjusting screw is adjusted by an operation of tilting the photographing angle of the camera module 70 with respect to the first rotation center 77 of the camera module 70 by one pitch of the male screw threads formed on the outer circumferential surface for each rotation.

10, the hinge protrusions 77A and 77B are engaged with the fixed end 250, which has a substantially "B" -shaped lower end, to lock the camera module 70 to the windshield bracket As shown in Fig. The hinge protrusions 77A and 77B are formed at both ends of the camera module 70 and fixed to the fixed end 250 so that the camera module 70 is tilted by the angle of view angle fixing part 300, The camera module 70 becomes the first rotation center 77 when the camera module 70 is tilted by the vertical corrector 500 of the corrector 400 or 500. [

The windshield bracket unit 50 is provided with first elastic members 600 and 610 that elastically support the hinge protrusions 77A and 77B of the camera module 70 so that the hinge protrusions 77A and 77B of the camera module 70 are held by the fixed ends 250, The second elastic members 600 and 620 may be further provided to support the support end portions 74A and 74B of the second elastic member 70 downward.

The second elastic members 600 and 620 support the upper ends of the support ends 74A and 74B of the camera module 70 downward so that the support ends 74A and 74B continuously contact the upper ends of the adjustment screws, So as not to flow due to vibration or shaking transmitted from the road surface during running of the vehicle 1.

The first elastic members 600 and 610 are configured to hold the camera module 70 with respect to the fixed end 250 as well as to hold the hinge protrusions 77A and 77B ) Is forcibly inserted, the insertion is guided to improve the assembling convenience of the wearer. The lower ends of the first elastic members 600 and 610 are bent outward at the fixed end 250 to guide the insertion of the hinge protrusions 77A and 77B into the fixed end 250. [

1 to 10, the camera module 70 for a driver assistance system for a vehicle according to the present invention includes a camera angle sensor The camera module 70 is rotated in the leftward / rightward direction and the up / downward direction with respect to the running direction of the vehicle 1 in the case where the photographing angle of the camera module 70 is changed due to vibration or shaking during running of the vehicle 1 And angle-of-view correction units 400 and 500 for correcting the angles.

Here, the angle of view correction units 400 and 500 may be configured such that the turning bracket 200 is positioned relative to the fixed bracket 270 in the windshield bracket unit 50 with respect to the running direction of the vehicle 1 with respect to the second turning center 281 And a vertical corrector (not shown) for vertically rotating the pivotal bracket 200 with respect to the fixed bracket 270 with respect to the first rotating center 77 with respect to the running direction of the vehicle 1, (500).

If the angle of view fixing unit 300 is such that the camera module 70 is set to the factory with the angle of view adjusted so that the angle of the camera module 70 is adjusted by the finished automobile manufacturer, And is actively correcting the camera angle when the camera angle of the camera module 70 is changed due to vibration or vibration generated from the road surface during driving.

5 to 6C, the horizontal correcting unit 400 includes a fixing bracket 270 protruding from the lower surface of the fixing bracket 270 toward the upper surface of the rotation bracket 200, and having the same shape as the rotation bracket 200 provided at one side A rotation guide 450 provided with a rack gear stage 451 in a shape of a arc having a second rotation center 281 and a rotation guide 450 provided on an upper surface of the rotation bracket 200, (Not shown) that rotates the pinion gear portion 416 provided to be engaged with the pinion gear portion 416.

The rotation drive unit includes a drive motor 411 having a motor shaft with a worm gear 412 formed thereon and a worm wheel gear 413 meshing with the worm gear 412. The worm wheel gear 413 meshes with the rack gear stage 451, And a pinion gear portion 416 on which a pinion gear 414 is formed. The worm wheel gear 413 and the pinion gear 414 are integrally formed with the pinion gear portion 416 so as to have a coaxial shaft 415 and are preferably formed integrally with the worm wheel gear 413 and The diameter of the worm wheel gear 413 is formed to be larger than the diameter of the pinion gear 414 while the pinion gear 414 has gear teeth of the same pitch.

The driving motor 411 is an electrically driven actuator and is disposed between the fixed bracket 270 and the rotating bracket 200. The rack gear stage 451 can be integrally formed on the lower surface of the fixed bracket 270 have.

The driving motor 411 and the pinion gear portion 416 are fixed to the pivot bracket 200 and are operated to be in place and the rack gear stage 451 provided in the rotation guide 450 of the fixed bracket 270 is provided with a pinion gear The rotation bracket 200 is rotated with the fixed bracket 270 as a reference.

The horizontal correction unit 400 having the above-described configuration may include the above-described rotation driving unit in the installation groove 260 provided in a groove shape on the upper surface of the rotation bracket 200.

The rotation bracket 200 is provided with a circular center hole 281 at the second rotation center 281 of the horizontal direction correction of the camera module 70 and is coupled with the fixing bracket 270, Shaped guide holes 282 and 283 for guiding the rotation of the main body 200.

The fixing bracket 270 is provided with a rotation center projection 271 passing through the center hole 281 of the rotation bracket 200 and rotation guide projections 272 and 273 passing through the guide holes 282 and 283 of the rotation bracket 200 .

The fixing bracket 270 may be formed with a fixing leg 275 which is inserted and fixed in a mounting hole 290 formed in the pivot bracket 200 in addition to the rotation center projection 271 and the rotation guide projections 272 and 273. [ The fixing legs 275 are formed in a hook shape to be hooked to the pivot bracket 200 and are preferably formed so as not to restrict rotation of the pivot bracket 200.

When the camera module 70 is mounted on the inner surface of the windshield glass 10 and then the vehicle 1 is taken out of the vehicle, 6B and 6C, when it is necessary to correct the lateral direction of the camera module 70 in the horizontal direction due to vibration or shaking of the vehicle body during running of the vehicle 1, that is, When a predetermined error angle has occurred in each of the set angles, the horizontal correction unit 400 is operated so as to have the setting angle automatically, and the rotation bracket 200 is rotated in the direction of the center of the circle corresponding to the second rotation center 281 The horizontal correction is completed while being guided by the protrusions 272 and 273 of the rotation guide 450 of the fixing bracket 270 inserted into the two guide holes 282 and 283 with respect to the hole 281.

The correcting angle of the camera module 70 corrected by the horizontal correcting unit 400 to the left and right in the running direction of the vehicle 1 is an angle corrected by the set angle at the changed photographing angle, Can be achieved.

7A and 7B, the vertical corrector 500 includes upper and lower rack gears 550 formed vertically up and down on the front end of the camera module 70, And a vertical driving part 510 coupled to the upper and lower rack gear part 550 to provide a driving force to rotate the camera module 70 up and down with respect to the first rotation center 77.

The vertical corrector 500 corrects the vertical photographing angle of the camera module 70 to the setting angle with reference to the first rotation center 77 which is the same as the angle of view angle fixing 300 described above, While the angle of view angle fixing unit 300 is manually adjusted by the pre-shipment installer of the vehicle 1 through the adjustment screw, the vertical correction unit 500 can detect that the vehicle 1 is running after leaving the vehicle 1 There is a difference in that when the vertical photographing angle among the photographing angles of the camera module 70 is changed due to the generated vibration or shaking, the photographing operation is automatically performed with the setting angle to complete the horizontal correction.

In particular, for such automatic operation, the vertical driving unit 510 includes a worm gear 511 ', a driving motor 511 provided on the motor shaft, a worm wheel gear 512 coupled to the worm gear 511' And a transmission gear 513 which is engaged with the worm wheel gear 512 and rotates to provide a rotational force to the rack gear portion 550 to tilt the camera module 70 up and down.

The vertical driving part 510 is provided between two mounting parts protruding downward in parallel on the lower surface of the pivot bracket 200.

The worm wheel gear 512 may be directly meshed with the transmission gear 513 but the connecting gear formed integrally with the worm wheel gear 512 and having a diameter smaller than that of the worm wheel gear 512 may be connected to the transmission gear 513, As shown in FIG.

The transmission gear 513 is engaged with the rack gear portion 550 to vertically tilt the front end portion of the camera module 70 with respect to the first rotation center 77. At this time, the support end portions 74A and 74B of the camera module 70 are vertically moved in the tilting guide portions 210A and 210B, and the upper side of the camera module 70 is still moved downward by the second elastic members 600 and 620 As shown in Fig.

The correction of the angle of view of the camera module 70 of the camera device 100 for a driver assistance system of a vehicle according to the present invention will be briefly described below.

The installer of the camera module 70 of the preliminary completion vehicle maker of the first vehicle 1 determines that the angle required for the camera module 70 is set according to the inclined surface of the windshield glass 10 which is different for each vehicle type, The camera module 70 is fixed to the windshield bracket part 50 by an operation of adjusting the angle of view using the angle-of-view fixing part 300 provided as shown in FIG.

Next, when a predetermined change is made in the horizontal direction or in the vertical direction at the setting angle of the photographing angle of the camera module 70 due to the vibration or shaking due to traveling after leaving the vehicle 1, the angle of view correction units 400 and 500 Operates the horizontal correction unit 400 and the vertical correction unit 500 to correct the imaging angle of the camera module 70 to a setting angle.

According to the camera device 100 for a driver assistance system of a vehicle according to the present invention configured to operate as described above, the camera module 70 can be easily mounted on the inner surface of the windshield glass 10, Thereby improving convenience and providing an advantage of preventing a safety accident from occurring due to a wrong angle of view of the camera module 70.

Hereinafter, a preferred embodiment of a camera device for a driver assistance system of a vehicle according to the present invention will be described in detail with reference to the accompanying drawings. However, it should be understood that the embodiments of the present invention are not necessarily limited to the above-described preferred embodiments, and that various modifications and equivalents may be made by those skilled in the art something to do. Therefore, it is to be understood that the true scope of the present invention is defined by the appended claims.

1: vehicle 10: windshield glass
50: Windshield bracket part 70: Camera module
100: camera device 200: rotating bracket
270: fixing bracket 300: angle of view fixing portion
400, 500: angle of view correction unit 400:
500: vertical correction unit

Claims (16)

A windshield bracket fixed to an inner surface of the windshield glass;
The windshield bracket according to any one of claims 1 to 3, wherein the windshield bracket includes a windshield bracket and a windshield bracket, A camera module coupled to the windshield bracket;
Wherein a front end portion or a rear end portion of the camera module is tilted with respect to an inner side surface of the windshield glass to adjust an angle of photographing of the camera module with respect to an inclined surface of the windshield glass, And an angle of view angle fixing unit for fixing the angle of view to the windshield bracket unit.
The method according to claim 1,
The angle-
And an adjusting screw rotatably screwed to the windshield bracket part to support an end (hereinafter, referred to as a " support end ") of the camera module, the end of the camera module facing the end of the first rotation center Camera devices for operator assistance systems.
The method of claim 2,
The adjustment screw
Wherein the camera module tilts the imaging angle of the camera module with respect to the first rotation center of the camera module by one pitch of the male threads formed on the outer circumferential surface for each rotation.
The method of claim 3,
A tilting guide portion for guiding the tilting of the support end portion to receive the support end portion and move up and down is formed in the windshield bracket portion,
And the adjusting screw is screwed to the tilting guide portion.
The method of claim 4,
Wherein the camera module has hinge protrusions to be the first rotation center,
Wherein the windshield bracket portion is provided with a fixing end formed to receive the hinge protrusion and to be hooked downward.
The method according to claim 4 or 5,
In the windshield bracket portion,
A first elastic member elastically supporting the hinge protrusion of the camera module so that the hinge protrusion of the camera module is held by the fixed end;
And a second elastic member for supporting the supporting end side of the camera module in a downward direction.
The method according to claim 1,
And an operation of rotating the camera module in left and right directions and up and down with respect to the traveling direction of the vehicle when the camera angle of the camera module fixed by the angle of view is fixed by the angle of view angle changing due to vibration or shaking during traveling of the vehicle And a viewing angle correcting section for correcting an angle of photographing of the camera module.
The method of claim 7,
The windshield bracket portion
A fixing bracket fixed to an inner surface of the windshield glass;
And a turning bracket coupled to the camera module and having left and right end portions rotatably disposed parallel to a lower surface of the fixing bracket.
The method of claim 8,
The image-
A horizontal correcting unit for horizontally rotating the pivoting bracket with respect to the fixed bracket with respect to the second rotating center with respect to the traveling direction of the vehicle;
And a vertical correction unit that vertically rotates the rotation bracket with respect to the fixed bracket with respect to the running direction of the vehicle, with respect to the first rotation center.
The method of claim 9,
Wherein the horizontal correction unit comprises:
A rotation guide protruding from the lower surface of the fixing bracket toward the upper surface of the rotation bracket and having a rack-shaped rack having a same second rotation center as that of the rotation bracket provided at one side;
And a rotation driving unit provided on an upper surface of the rotation bracket for rotating the pinion gear unit so as to be engaged with the rack gear stage of the rotation guide.
The method of claim 10,
The rotation drive unit includes:
A drive motor having a motor shaft formed with a worm gear;
A worm wheel gear engaged with the worm gear, and a pinion gear having a pinion gear engaged with the rack gear end.
The method of claim 10,
In the fixing bracket,
A rotation center projection projecting through the rotation bracket corresponding to the second rotation center of the rotation bracket;
A rotation guide protrusion passing through the pivot bracket corresponding to at least two positions spaced apart from the second rotation center of the pivot bracket;
The camera device for the driver assistance system of the vehicle.
The method of claim 12,
In the pivot bracket,
A circular central hole into which the rotation center projection is inserted;
A slot-shaped guide hole into which the rotation guide projection is inserted;
The camera device comprising:
The method of claim 9,
Wherein the vertical correction unit comprises:
Upper and lower rack gears formed vertically up and down on the front end of the camera module;
And a vertical driving part provided on a lower surface of the pivot bracket and engaged with the upper and lower rack gear parts to provide a driving force to rotate the camera module up and down with respect to the first rotation center.
15. The method of claim 14,
The vertical driver may include:
A drive motor having a worm gear provided on a motor shaft;
A worm wheel gear engaged with the worm gear and rotated;
And a transmission gear rotatably engaged with the worm wheel gear to provide a rotational force to the rack gear portion to tilt the camera module up and down.
The method of claim 9,
Wherein the horizontal correction unit and the vertical correction unit comprise:
Wherein the camera module is automatically operated so as to have the setting angle when a photographing angle of the camera module has a predetermined error angle at the setting angle.

Images