Automatic aiming and automatic leveling control system for headlights

Abstract

Disclosed is an automatic aiming and automatic leveling control system for a headlight, which simplifies the initial aiming of the headlight and can link an aiming process with a leveling process of the headlight, thereby reducing manufacturing costs and achieving process automation.

Description

Technical Field

[0001] The present disclosure relates to an automatic aiming and automatic leveling control system for a vehicle headlight, which adjusts the light radiation direction of an optical module. Background Art

[0002] Generally, a moving vehicle is provided with a lighting device for helping the driver to see objects in the moving direction of the moving vehicle and to inform other vehicles or road users of the moving vehicle's driving status when driving at night. A headlight is a lamp attached to the front of a moving vehicle for illuminating the road ahead in the moving direction of the moving vehicle.

[0003] In other words, the headlights radiate light in the direction of travel of the moving vehicle to ensure visibility of the road ahead and thus confirm other vehicles and obstacles, thereby achieving driving safety of the moving vehicle.

[0004] When a headlamp is mounted on a moving vehicle, an aiming process is required, which is different from a leveling process of adjusting a light radiation direction of the headlamp while driving the moving vehicle.

[0005] Recently, it is expected to improve the productivity of mobile vehicles through automation. In order to aim the conventional headlights, the current work process includes a worker manually aiming the headlights using an aiming tool after confirming the result of the aiming measurement device. Therefore, the aiming process of the headlights requires a worker, and since the same operation should be performed on two headlights, i.e., the left headlight and the right headlight, the aiming process becomes complicated.

[0006] The above information disclosed in the background section is only for enhancement of understanding of the background of the present disclosure and should not be construed as conventional technology already known by one of ordinary skill in the art. Summary of the invention

[0007] The present disclosure provides an automatic aiming and automatic leveling control system for a vehicle headlamp, which automatically performs aiming of the vehicle headlamp and links the automatic aiming process with the leveling process of the vehicle headlamp, thereby reducing manufacturing costs and realizing an automated process.

[0008] In an embodiment of the present disclosure, an automatic aiming and automatic leveling control system for a vehicle headlight includes a sensing module, the sensing module includes a measuring sensor and a first acceleration sensor, the measuring sensor is configured to scan the road surface under the moving vehicle to collect road surface information, and the first acceleration sensor is configured to collect acceleration information of the moving vehicle. The automatic aiming and automatic leveling control system further includes a light module, the light module includes an optical module and a second acceleration sensor, the optical module is configured to radiate light and adjust the light radiation direction, and the second acceleration sensor is configured to collect acceleration information of the moving vehicle. The automatic aiming and automatic leveling control system also includes a first controller, the first controller is set in the sensing module and is configured to collect the change in the acceleration direction from the first acceleration sensor and the change in the road surface from the measuring sensor, and is configured to determine the change in the road surface angle. The automatic aiming and automatic leveling control system also includes a second controller, the second controller is set in the light module and is configured to collect the change in the acceleration direction from the second acceleration sensor and the change in the road surface angle input from the first controller, and adjust the light radiation direction of the optical module.

[0009] The measurement sensor of the sensing module may be a time-of-flight (ToF) sensor, and may implement measurement at a variety of resolutions.

[0010] The sensing module may be mounted on a lower portion of the moving vehicle, and the light module may be a headlight.

[0011] In one embodiment, the sensing module may further include a sensor housing mounted on a lower portion of the moving vehicle and having a lens disposed on a lower surface of the sensor housing. In one form, the measurement sensor and the first acceleration sensor may be disposed adjacent to each other in the sensor housing.

[0012] In one embodiment, the lamp module may further include a lamp housing having a lens, the optical module may be installed to be tiltable in the lamp housing, and the second acceleration sensor may be installed on a tilt axis of the lamp module.

[0013] In one embodiment, the light module may further include a leveling driver, and the leveling driver may be connected to the optical module. In particular, upon receiving a command from the second controller, the leveling driver may tilt the optical module so as to automatically adjust the leveling of the optical module based on the light radiation direction.

[0014] In one embodiment, the light module may further include an aiming mechanism, and the aiming mechanism may be configured to fix the position of the optical module and adjust the aiming of the optical module through external manipulation based on the light radiation direction.

[0015] The measuring sensor can set a scanning area for the road surface; and the first controller can obtain the change in the road surface by repeating the following process: deriving data about the plane from the data about the scanning area input by the measuring sensor through linear regression, and making the discreteness of the corresponding data fall within a predetermined reference range.

[0016] The first controller can store a road surface setting value based on road surface information including a distance to the road surface measured by a measuring sensor, and can store an acceleration setting value based on acceleration information in the gravity direction measured by a first acceleration sensor when the sensing module is placed on a workbench, and the workbench is configured to simulate an installation state of the sensing module in a mobile vehicle before the sensing module is installed in the mobile vehicle.

[0017] The second controller can store an acceleration setting value based on acceleration information in the gravity direction measured by the second acceleration sensor, and can adjust the light radiation direction of the optical module to determine an initial aiming angle when the light module is placed on a workbench, and the workbench is configured to have a screen and simulate the installation state of the light module in the mobile vehicle before the light module is installed in the mobile vehicle.

[0018] The first controller can determine the change in acceleration direction based on information input from the first acceleration sensor and the acceleration setting value, and further determine the change in road surface based on information input from the measurement sensor and the road surface setting value. The first controller can determine the change in road surface angle using the change in acceleration direction and the change in road surface.

[0019] The second controller may determine a change amount in the acceleration direction based on information input from the second acceleration sensor and the acceleration setting value, and may determine a sighting angle of the optical module based on a change amount in the road surface angle input from the first controller and the acceleration setting value.

[0020] When the light radiation direction of the optical module is forcibly adjusted by external manipulation, the first controller and the second controller may re-store the road surface setting value and the respective acceleration setting values.

[0021] When a signal indicating completion of forced adjustment of the light radiation direction of the optical module by external manipulation is input, the first controller and the second controller may store the road surface setting value and the respective acceleration setting values ​​at a predetermined time before the point in time when forced adjustment of the light radiation direction of the optical module is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects, features and other advantages of the present disclosure will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0023] Figure 1is a schematic diagram of an automatic aiming and automatic leveling control system for a vehicle headlight according to an embodiment of the present disclosure;

[0024] Figure 2 It shows that according to Figure 1 A view of a sensing module of an automatic aiming and automatic leveling control system of one embodiment of the present disclosure is shown;

[0025] Figure 3 It shows that according to Figure 1 A view of a light module of an automatic aiming and automatic leveling control system of one embodiment of the present disclosure is shown;

[0026] Figure 4 is a diagram showing a sensing module of an automatic aiming and automatic leveling control system according to one embodiment of the present disclosure; and

[0027] Figure 5 is a view showing a light module of an automatic aiming and automatic leveling control system according to one embodiment of the present disclosure. DETAILED DESCRIPTION

[0028] Hereinafter, reference will be made in detail to embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numerals are used throughout the drawings to refer to the same or like parts.

[0029] In the following description of the embodiments, suffixes such as “module,” “part,” and “unit” are provided or used interchangeably only in consideration of convenience in explaining the present disclosure but have no mutually distinguished meanings or functions.

[0030] In the following description of the embodiments of the present disclosure, if the detailed description of the known functions and structures contained herein may make the subject matter of the present disclosure quite unclear, such detailed description is omitted. In addition, the accompanying drawings are provided exemplarily to describe the embodiments of the present disclosure and should not be understood as being limited to the embodiments set forth herein. The embodiments of the present disclosure are provided only to enhance the understanding of the present disclosure and should cover modifications, equivalents or alternatives that fall within the scope and technical scope of the present disclosure.

[0031] In the following description of the embodiments, terms such as "first" and "second" are only used to describe various elements, and these elements should not be understood as being limited by these terms. These terms are only used to distinguish one element from other elements.

[0032] When an element or layer is referred to as being “connected to” or “coupled to” another element or layer, it may be directly connected or coupled to the other element or layer, or intervening elements or layers may be present. Conversely, when an element or layer is referred to as being “directly connected to” or “directly coupled to” another element or layer, there may not be any intervening elements or layers.

[0033] As used herein, singular expressions may also be intended to include plural expressions, unless the context clearly indicates otherwise. When a component, device, element, etc. of the present disclosure is described as having a certain purpose or performing a certain operation, function, etc., the component, device or element should be considered to be "configured to" meet the purpose or perform the operation or function.

[0034] In the following description of the embodiments, the terms "comprises", "includes", "contains" and "has" are inclusive and thus specify the presence of stated features, integers, steps, operations, elements, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0035] The controller may include a communication device configured to communicate with other controllers or sensors to control the functions provided by the controller, a memory configured to store operating system or logic commands and input and output information, and at least one processor configured to perform determinations, calculations, decisions, etc. required to control the functions provided by the controller.

[0036] Hereinafter, an automatic aiming and automatic leveling control system for a vehicle headlight according to one embodiment of the present disclosure is described with reference to the accompanying drawings.

[0037] like Figures 1 to 3 As shown, according to an embodiment of the present disclosure, an automatic aiming and automatic leveling control system for a vehicle headlight includes a sensing module 10, the sensing module 10 includes a measuring sensor 11 configured to scan a road surface under a moving vehicle M to collect road surface information and a first acceleration sensor 12 configured to collect acceleration information. The automatic aiming and automatic leveling control system includes a lamp module 20, the lamp module 20 includes an optical module 21 configured to radiate light and adjust the light radiation direction and a second acceleration sensor 22 configured to collect acceleration information. The automatic aiming and automatic leveling control system also includes a first controller 30, which is disposed in the sensing module 10 and is configured to collect the amount of change in the acceleration direction provided by the first acceleration sensor 12 and the amount of change in the road surface provided by the measuring sensor 11, and to determine the amount of change in the road surface angle. The automatic aiming and automatic leveling control system also includes a second controller 40, which is disposed in the lamp module 20 and is configured to collect the amount of change in the acceleration direction provided by the second acceleration sensor 22 and the amount of change in the road surface angle input from the first controller 30, and to adjust the light radiation direction of the optical module 21.

[0038] The sensing module 10 may include a measuring sensor 11 and a first acceleration sensor 12, and the sensing module 10 and the first controller 30 may be modularized. The measuring sensor 11 may be a time-of-flight (ToF) sensor using laser, ultrasonic wave, and camera, and may detect the state of the road surface, and the first acceleration sensor 12 may obtain acceleration information in the direction of gravity.

[0039] In other words, the measuring sensor 11 of the sensing module 10 may be a time-of-flight (ToF) sensor, and may be configured to achieve measurement at a variety of resolutions, thereby being able to measure the road surface angle without mechanical action.

[0040] In one embodiment, the sensing module 10 may include a sensor housing 13, which is installed at the lower part of the mobile vehicle "M" and has a lens "L" disposed on the lower surface of the sensor housing 13, and the measurement sensor 11 and the first acceleration sensor 12 may be disposed adjacent to each other in the sensor housing 13.

[0041] When the sensor housing 13 is installed at the lower part of the moving vehicle "M", the measuring sensor 11 can scan the road surface. The interior of the sensor housing 13 is sealed by a lens L provided on the lower surface of the sensor housing 13, and the measuring sensor 11 can scan the road surface through the lens L to collect road surface information.

[0042] Furthermore, by arranging the measuring sensor 11 and the first acceleration sensor 12 adjacent to each other in the sensor housing 13 , it is possible to minimize an error in the road surface information measured by the measuring sensor 11 in the gravity direction confirmed by the first acceleration sensor 12 .

[0043] In addition, the sensor housing 13 is located at the lower part of the mobile vehicle M, so the influence of sunlight and environmental conditions (snowfall, obstacles, etc.) on the sensor housing 13 can be suppressed, and an effect equivalent to placing the ToF sensor on the optical module 21 based on the gravity direction of the first acceleration sensor 12 located in the sensing module 10 and the second acceleration sensor 22 located in the optical module 21 can be expected.

[0044] The light module 20 may include an optical module 21 and a second acceleration sensor 22, and the second acceleration sensor 22 may be mounted on the optical module 21. The optical module 21 may include a light source 21a and a reflector 21b, and the light radiated by the light source 21a may be reflected by the reflector 21b and then emitted to the outside. In addition, the optical module 21 may include a heat sink 21c, which is configured to radiate heat generated from the light source 21a, and the heat sink 21c may be set to be tilted by external power, and thereby the light radiation direction may be adjusted. The second acceleration sensor 22 may obtain acceleration information in the direction of gravity.

[0045] The lamp module 20 may include a lamp housing 23 having a lens L, the optical module 21 may be installed to be tiltable in the lamp housing 230 , and the second acceleration sensor 22 may be installed on a tilt axis 26 of the lamp module 20 .

[0046] like Figure 3 As shown, the optical module 21 is installed in the lamp housing 23. The optical module 21 is installed to be tiltable and can therefore achieve a leveling function by changing the light radiation direction. In particular, the second acceleration sensor 22 can be installed on the tilt axis of the lamp module 20. In the gravity direction confirmed by the second acceleration sensor 22, the accuracy of the light radiation direction of the optical module 21 can be guaranteed.

[0047] In more detail, the light module 20 may further include a leveling drive 24 and an aiming mechanism 25 .

[0048] The leveling driver 24 may be connected to the optical module 21, and may be configured to tilt the optical module 21 when a command is input from the second controller 40, so as to automatically adjust the leveling of the optical module 21 based on the light radiation direction. The aiming mechanism 25 may be configured to fix the position of the optical module 21, and adjust the aiming of the optical module 21 by external manipulation based on the light radiation direction of the optical module 21.

[0049] Therefore, the optical module 21 may be installed in the lamp housing 23 via the leveling drive 24 and the aiming mechanism 25 .

[0050] The leveling driver 24 may include an actuator that is disposed in the lamp housing 23 and configured to operate according to a command received from the second controller 40. The leveling driver 24 may be connected to the optical module 21 in various ways, such as a gear connection, a belt connection structure, etc., and may adjust the tilt angle of the optical module 21 according to whether the leveling driver 24 is operated when power is transmitted to the leveling driver 24.

[0051] Here, the aiming mechanism 25 may include an aiming operator 25a and an aiming link 25b. The aiming operator 25a may be exposed outside the lamp housing 23 so that a worker can directly adjust the position of the aiming operator 25a, and the aiming link 25b may change the tilt position of the optical module 21 based on the position of the aiming operator 25a. The aiming operator 25a may be arranged to be vertically movable outside the lamp housing 23, and may be configured so that the position of the aiming operator 25a may be adjusted upward and downward using a specific tool. The aiming link 25b may be configured so that one end thereof is connected to the aiming operator 25a, and the other end thereof is connected to the optical module 21, so as to change the tilt angle of the optical module 21 as the position of the aiming operator 25a moves.

[0052] The leveling operator 24 and the aiming mechanism 25 may be connected to the upper and lower portions of the optical module 21 so as to be spaced apart from each other.

[0053] Therefore, the optical module 21 can adjust the light radiation direction through the leveling operator 24 and the aiming mechanism 25, and the leveling operator 24 can adjust the leveling of the optical module 21 under the control of the controllers 30 and 40 based on the driving condition of the mobile vehicle M. When the light module 20 is installed in the mobile vehicle, the aiming mechanism 25 can adjust the aiming of the optical module 21 based on the light radiation direction, or the aiming can be adjusted due to deformation of the components.

[0054] Here, leveling indicates automatic adjustment of the light radiation direction of the optical module 21 based on changes in the posture of the moving vehicle M, road conditions, etc., while aiming indicates adjustment of the light radiation direction of the vehicle module 20 to meet the laws and regulations of various countries or regions and can be performed by workers.

[0055] The sensing module 10 is installed at the lower part of the moving vehicle M so that the measuring sensor 11 collects road surface information. The light module 20 includes a headlight and is configured so that light emitted by the optical module 21 is projected in the driving direction of the moving vehicle M.

[0056] Therefore, the first controller 30 and the second controller 40 may adjust the light radiation direction of the optical module 21 based on information input through the respective sensors provided in the sensing module 10 and the light module 20 .

[0057] In more detail, the first controller 30 may collect the amount of change in the acceleration direction confirmed by the first acceleration sensor 12 and the amount of change in the road surface confirmed by the measurement sensor 11 and then determine the amount of change in the road surface angle.

[0058] In addition, the second controller 40 may collect the amount of change in the acceleration direction confirmed by the second acceleration sensor 22 and the amount of change in the road surface angle input from the first controller 30 , and may adjust the light radiation direction of the optical module 21 .

[0059] Here, the measuring sensor 11 can set a scanning area for the road surface, and the first controller 30 can obtain the change in the road surface by repeating the following process: deriving data about the plane from the data about the scanning area input by the measuring sensor 11 through linear regression, and making the discreteness of the corresponding data fall within a predetermined reference range.

[0060] In other words, the measuring sensor 11 sets a scanning area with a specified range on the road surface, and transmits data about the scanning area to the first controller 30. Because the data scanned by the measuring sensor 11 is configured to have a shorter distance as the data is closer to the periphery from the center of the scanning area, and the data represents the shape of a curved surface. Therefore, the first controller 30 determines the data about the plane from the data about the scanning area input by the measuring sensor 11 through linear regression. Here, the first controller 30 can obtain the road surface information with reduced error due to the discreteness falling within a predetermined reference range in the following manner: (i) via linear regression, obtain information about the plane by applying the predictor variable to the data set with a curved surface shape; (ii) repeat the linear regression so that the discreteness of the data about the plane falls within the predetermined reference range.

[0061] Therefore, the first controller 30 can obtain the amount of change in the road surface direction based on the road surface information provided by the measurement sensor 11 .

[0062] The first controller 30 pre-stores setting values ​​for determining a change in a road surface angle based on information input from the measurement sensor 11 and the acceleration sensor 12 , and the second controller 40 pre-stores setting values ​​for adjusting a light radiation direction of the optical module 21 .

[0063] When the sensing module 10 is placed on a workbench, the first controller 30 stores a road surface setting value based on road surface information including the distance to the road surface measured by the measuring sensor 11, and stores an acceleration setting value based on acceleration information in the gravity direction measured by the first acceleration sensor 12. The workbench is configured to simulate the installation state of the sensing module 10 in the mobile vehicle M before the sensing module 10 is installed in the mobile vehicle M.

[0064] In other words, the sensing module 10 is manufactured separately and installed in the mobile vehicle M, and the information measured by the measuring sensor 11 and the first acceleration sensor 12 is collected in advance when the manufactured sensing module 10 is placed on a workbench configured to simulate the mobile vehicle M to which the sensing module 10 is applied.

[0065] Accordingly, when the sensing module 10 is placed on the workbench, the first controller 30 stores a road surface setting value based on road surface information including the distance to the road surface input from the measuring sensor 11, and the first controller 30 further stores an acceleration setting value based on acceleration information in the gravity direction input from the first acceleration sensor 12.

[0066] In addition, the second controller 40 stores an acceleration setting value based on the acceleration information in the gravity direction measured by the second acceleration sensor 22, and adjusts the light radiation direction of the optical module 21 when the lamp module 20 is placed on a workbench, thereby determining an initial aiming angle. The workbench is configured to have a screen and simulates the installation state of the lamp module 20 in the mobile vehicle M before the lamp module 20 is installed in the mobile vehicle M.

[0067] The light module 20 can be manufactured separately and installed in the mobile vehicle M, collect information measured by the second acceleration sensor 22 in advance, and control the aiming of the optical module 21 when the manufactured light module 20 is placed on a workbench configured to simulate the mobile vehicle M in which the light module 20 is applied.

[0068] Accordingly, when the lamp module 20 is placed on the workbench, the second controller 40 adjusts the light radiation direction based on the position where the light from the optical module 21 is projected onto the screen, stores the adjusted light radiation direction, and stores the acceleration setting value based on the acceleration information in the gravity direction input from the second acceleration sensor 12.

[0069] As described above, the first controller 30 and the second controller 40 store the respective setting values ​​in advance before the sensing module 10 and the light module 20 are installed in the mobile vehicle M, and control the aiming of the light module 20 based on the respective setting values ​​stored in the first controller 30 and the second controller 40 when the sensing module 10 and the light module 20 are installed in the mobile vehicle M. Therefore, after the sensing module 10 and the light module 20 are installed in the mobile vehicle M, a separate aiming process is not required, so that the manufacturing process can be shortened, and thereafter, the leveling control can be performed based on the setting values ​​stored in the respective controllers 30 and 40 while the mobile vehicle M is driven.

[0070] Control of aiming and leveling based on the respective setting values ​​stored in the first controller 30 and the second controller 40 is performed as follows.

[0071] The first controller 30 can determine the change in acceleration direction based on information input from the first acceleration sensor 12 and the acceleration setting value, can determine the change in road surface based on information input from the measurement sensor 11 and the road surface setting value, and can use the change in acceleration direction and the change in road surface to determine the change in road surface angle.

[0072] The second controller 40 may determine the change amount of the acceleration direction based on the information input from the second acceleration sensor 22 and the acceleration setting value, and may determine the aiming angle of the optical module 21 based on the change amount of the road surface angle input from the first controller 30 and the acceleration setting value.

[0073] For more details, see Figure 4 When the sensing module 10 is installed in the moving vehicle M and powered on, the first acceleration sensor 12 may be set based on the acceleration value Φ s_set Measure the change in acceleration direction Ф s , the measuring sensor 11 can set the value τ based on the road surface set Therefore, the first controller 30 can collect the change in the acceleration direction Φ s and the change in the road surface τ, and the change in the road surface angle θ based on the direction of gravity ground The change in road surface angle θ ground The change in acceleration direction Φ can be obtained by subtracting the change in the road surface τ from the change in the road surface τ. s To calculate, the first controller 30 can store the change in road angle θ ground , and the change in road angle θ can be ground Transmitted to the second controller 40.

[0074] In addition, refer to Figure 5 When the lamp module 20 is powered on after being installed in the moving vehicle M, the second acceleration sensor 22 may set the value Φ based on the acceleration. L set Measure the change in acceleration direction Ф L Here, the second controller 40 is based on the change in the acceleration direction Φ L and the change in the road surface angle θ input from the first controller 30 ground Correct the aiming angle of the optical module 21. The aiming angle of the optical module 21 can be adjusted by changing the road surface angle θ ground The change in the acceleration direction Ф L After adjusting the aiming angle of the optical module 21, the second controller 40 can determine whether the aiming angle of the optical module 21 is consistent with the change in the acceleration direction φ L Subtract the change in road angle θ from ground The obtained values ​​are consistent with each other to detect the aiming accuracy of the optical module 21.

[0075] As described above, in the present disclosure, when the sensing module 10 and the light module 20 are manufactured separately, the controller 30 and the controller 40 provided in the sensing module 10 and the light module 20 can store various setting values ​​for adjusting the aiming of the light module 20, and when the sensing module 10 and the light module 20 are powered on after being installed in the mobile vehicle M, the aiming of the light module 20 can be adjusted based on the various setting values ​​according to the state of the corresponding mobile vehicle, and thereafter, the leveling of the light module 20 can be performed during driving of the mobile vehicle.

[0076] In addition, when the light radiation direction of the optical module 21 is forcibly adjusted by external manipulation, the first controller 30 and the second controller 40 may re-store the road surface setting value and the acceleration setting value, ie, the first acceleration setting value and the second acceleration setting value.

[0077] The light radiation direction of the optical module 21 may be changed due to various conditions including degradation of various components comprising the light module 20. Therefore, the light module 20 may control the aiming of the optical module 21 by mechanically forcibly adjusting the light radiation direction of the optical module 21. Here, the aiming of the optical module 21 may be controlled by the aiming mechanism 25 described above.

[0078] When the aiming of the optical module 21 is forcibly adjusted, the first controller 30 can store a road surface setting value based on road surface information including the distance to the road surface measured by the measuring sensor 11 and an acceleration setting value based on the acceleration information in the gravity direction measured by the first acceleration sensor 12, and the second controller 40 can store an acceleration setting value based on the acceleration information in the gravity direction measured by the second acceleration sensor 22 and the adjusted light radiation direction of the optical module 21.

[0079] Here, when forcibly adjusting the aiming of the optical module 21, the aiming angle of the optical module 20 can be returned based on the various acceleration information obtained by the first acceleration sensor 12 of the sensing module 10 and the second acceleration sensor 22 of the lighting module 20. Therefore, when a signal indicating the completion of the forced adjustment of the light radiation direction of the optical module 21 by external manipulation is input, the first controller 30 and the second controller 40 store the road surface setting value, the first acceleration setting value and the second acceleration setting value at a predetermined time (for example, 10 seconds) before the time point when the forced adjustment of the light radiation direction of the optical module 21 is completed.

[0080] Here, the time point of completing the forced adjustment of the light radiation direction of the optical module 21 may be the time point when the cover configured to be opened to install the lamp module 20 in the mobile vehicle M is closed, or the time point when the worker transmits a signal through external input or communication.

[0081] Therefore, during the forced adjustment of the light radiation direction of the optical module 21 by external manipulation, the first controller 30 and the second controller 40 can repeatedly store the road surface setting value, the first acceleration setting value and the second acceleration setting value over time, and can store the road surface setting value, the first acceleration setting value and the second acceleration setting value at a predetermined time before the time point when the forced adjustment of the light radiation direction of the optical module 21 is completed, thereby completing the adjustment of the aiming of the optical module 21.

[0082] The automatic aiming and automatic leveling control system having the above structure can simplify the initial aiming of the vehicle headlights, and can link the aiming process with the leveling of the vehicle headlights, thereby being able to reduce manufacturing costs and realize process automation.

[0083] As apparent from the above description, the automatic aiming and automatic leveling control system having the above structure can simplify the initial aiming of the headlights and can link the aiming process with the leveling of the headlights, thereby being able to reduce manufacturing costs and realize process automation.

[0084] Although the embodiments of the present disclosure have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the present disclosure as disclosed in the accompanying claims.

Claims

1. An automatic aiming and automatic leveling control system for a vehicle headlight, comprising: A sensing module, comprising a measuring sensor and a first acceleration sensor, wherein the measuring sensor is configured to scan a road surface under the moving vehicle to collect road surface information, and the first acceleration sensor is configured to collect acceleration information of the moving vehicle; a light module, comprising an optical module and a second acceleration sensor, wherein the optical module is configured to radiate light and adjust the light radiation direction, and the second acceleration sensor is configured to collect acceleration information of the moving vehicle; A first controller is provided in the sensing module and is configured to: collecting the amount of change in the acceleration direction confirmed by the first acceleration sensor and the amount of change in the road surface from the measurement sensor, and Determine the change in road surface angle; as well as A second controller is provided in the lamp module and is configured to: collecting the change in acceleration direction from the second acceleration sensor and the change in the road surface angle input from the first controller, and Adjust the light radiation direction of the optical module.

2. The automatic aiming and automatic leveling control system according to claim 1, wherein: The measuring sensor of the sensing module is a time-of-flight sensor, namely a ToF sensor, and performs measurements at multiple resolutions.

3. The automatic aiming and automatic leveling control system according to claim 1, wherein: The sensing module is installed at a lower portion of the moving vehicle, and the light module is a headlight.

4. The automatic aiming and automatic leveling control system according to claim 1, wherein: The sensing module further includes a sensor housing mounted at a lower portion of the moving vehicle and having a lens disposed at a lower surface of the sensor housing, and the measuring sensor and the first acceleration sensor are disposed adjacent to each other in the sensor housing.

5. The automatic aiming and automatic leveling control system according to claim 1, wherein: The lamp module further includes a lamp housing having a lens, the optical module is installed to be tiltable in the lamp housing, and the second acceleration sensor is installed on a tilt axis of the lamp module.

6. The automatic aiming and automatic leveling control system according to claim 1, wherein: The lamp module further includes a leveling driver, and When a command is input from the second controller, the leveling driver is connected to the optical module and is configured to tilt the optical module so as to automatically adjust the leveling of the optical module based on the light irradiation direction.

7. The automatic aiming and automatic leveling control system according to claim 1, wherein: The light module further includes an aiming mechanism, and The aiming mechanism is configured to fix the position of the optical module and adjust the aiming of the optical module through external manipulation based on the light radiation direction.

8. The automatic aiming and automatic leveling control system according to claim 1, wherein: The measuring sensor sets a scanning area for the road surface; and The first controller is configured to obtain the amount of change in the road surface by repeating the following process: deriving data on a plane from data on the scanning area input by the measurement sensor through linear regression, and making a dispersion of the corresponding data fall within a predetermined reference range.

9. The automatic aiming and automatic leveling control system according to claim 8, wherein: The first controller is configured to: storing a road surface setting value based on the road surface information including the distance to the road surface measured by the measuring sensor, and When the sensing module is placed on a workbench, an acceleration setting value based on acceleration information in the gravity direction measured by the first acceleration sensor is stored, and the workbench is configured to simulate the installation state of the sensing module in the mobile vehicle before the sensing module is installed in the mobile vehicle.

10. The automatic aiming and automatic leveling control system according to claim 9, wherein: The second controller is configured to: storing an acceleration setting value based on acceleration information in the gravity direction measured by the second acceleration sensor, and With the light module placed on a workbench, the light radiation direction of the optical module is adjusted so as to determine an initial aiming angle, the workbench being configured with a screen and simulating an installation state of the light module in the mobile vehicle before the light module is installed in the mobile vehicle.

11. The automatic aiming and automatic leveling control system according to claim 10, wherein: The first controller is configured to: determining the amount of change in the acceleration direction based on information input from the first acceleration sensor and the acceleration setting value, determining an amount of change in the road surface based on information input from the measurement sensor and the road surface setting value, and The change amount of the road surface angle is determined by using the change amount of the acceleration direction and the change amount of the road surface.

12. The automatic aiming and automatic leveling control system according to claim 11, wherein: The second controller is configured to: determining the amount of change in the acceleration direction based on information input from the second acceleration sensor and the acceleration setting value, and Based on the amount of change in the road surface angle input from the first controller and the acceleration setting value, a sighting angle of the optical module is determined.

13. The automatic aiming and automatic leveling control system according to claim 10, wherein: When the light radiation direction of the optical module is forcibly adjusted by external manipulation, the first controller and the second controller are configured to re-store the road surface setting value and the respective acceleration setting values.

14. The automatic aiming and automatic leveling control system according to claim 13, wherein: When a signal indicating completion of forced adjustment of the light radiation direction of the optical module by external manipulation is input, the first controller and the second controller are configured to store the road surface setting value and the respective acceleration setting values ​​at a predetermined time before a point in time when forced adjustment of the light radiation direction of the optical module is completed.

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