WO2019033625A1

WO2019033625A1 - Vehicle headlight adjustment apparatus and system

Info

Publication number: WO2019033625A1
Application number: PCT/CN2017/114735
Authority: WO
Inventors: 闵岚; 陈红运; 李屹
Original assignee: 深圳市绎立锐光科技开发有限公司
Priority date: 2017-08-18
Filing date: 2017-12-06
Publication date: 2019-02-21
Also published as: CN109398220A

Abstract

A vehicle headlight adjustment apparatus (14) and system (10). The apparatus (14) comprises: a driver (141) and a controllable reflective optical element (142), wherein the driver (141) is used for receiving an adjustment signal, and controlling the movement of the controllable reflective optical element (142) in response to the adjustment signal so as to change the position of the controllable reflective optical element (142) relative to the headlight of the vehicle, thereby changing a parameter of an outgoing light beam of the headlight of the vehicle. Outgoing light with a wider range and more diverse shapes can be obtained, thereby reducing the rate of occurrence of traffic accidents.

Description

Headlight adjustment device and system

[0001] The present application relates to the field of optical technologies, and in particular, to a headlight adjustment device and system for a headlight.

Background technique

[0002] With the rapid development of the on-board automobile industry, the proportion of accidents in driving is also increasing year by year, and 70% of traffic accidents occur at night. At night driving, the driver's line of sight becomes narrower, the ability to recognize dark objects is significantly reduced, and after the vehicle is increased, the driver's driving environment is more and more complicated, and the operation control of the car is more frequent. The higher the requirements.

technical problem

[0003] Among them, for the light conversion of the high beam and low beam, the wrong operation will lead to serious consequences. According to statistics, many nighttime car accidents are caused by the opposite vehicle carrying the high beam. Because the opposite vehicle is carrying the high beam, the driver's eyes will be illuminated by the opposite lights and the front road will not be seen. When the vehicle passed by, it suddenly turned black and could not adapt. It was very likely to cause a car accident, which led to a traffic accident.

[0004] Therefore, the humanization and intelligence of the design of the automobile headlights is very necessary.

Problem solution

Technical solution

[0005] The present application provides a headlight adjustment device and an adjustment system for a vehicle, which can obtain a wider range of shapes and more outgoing light, and reduce the incidence of traffic accidents.

[0006] In order to solve the above technical problem, another technical solution adopted by the present application is: Providing a headlight adjustment device for a vehicle, the device comprising: a driver and a controllable reflective optical component, wherein the driver is configured to receive an adjustment signal And controlling the movement of the controllable reflective optical element in response to the adjustment signal to change a position of the controllable reflective optical element relative to the headlight of the vehicle, thereby changing a parameter of an outgoing beam of the headlight.

[0007] In order to solve the above technical problem, another technical solution adopted by the present application is: Providing a headlight adjustment system for a vehicle, the system comprising: a sensing unit, a control unit, at least one headlight and On The adjusting device according to any one of the preceding claims; wherein the sensing unit is configured to sense spatial parameter information of the detected object in the controlled state of operation of the vehicle, and the control unit outputs and adjusts according to the spatial parameter information of the detected object Signaling to the adjustment device, the adjustment device responsive to the adjustment signal to change a parameter of an exit beam of the at least one headlight.

Advantageous effects of the invention

Beneficial effect

[0008] The beneficial effects of the present application are: Providing a headlight adjustment device and system for a headlight, which can increase the brightness and direction of an output beam of a headlight by adding an adjustment device for a headlight in a controlled vehicle. The parameters such as angle and angle can be adjusted to obtain a wider range of shapes and more outgoing light, and the incidence of traffic accidents can be reduced.

Brief description of the drawing

DRAWINGS

1 is a schematic structural view of an embodiment of a headlight adjustment system of the present application;

2 is a schematic structural view of an embodiment of a headlight adjusting device for a vehicle of the present application;

3 is a schematic structural view of a first embodiment of a controllable reflective optical element;

4 is a schematic structural view of a second embodiment of a controllable reflective optical element; [0012] FIG.

[0013] FIG. 5 is a schematic structural view of a third embodiment of a controllable reflective optical element;

6 is a schematic structural view of a fourth embodiment of the controllable reflective optical element of the present application;

7 is a schematic diagram of a working principle of a fourth embodiment of the controllable reflective optical element of the present application;

8 is a schematic diagram of another working principle of a fourth embodiment of the controllable reflective optical element of the present application;

9 is a schematic structural view of a fifth embodiment of the controllable reflective optical element of the present application;

10 is a schematic diagram of a working principle of a fifth embodiment of the controllable reflective optical element of the present application;

11 is a schematic view showing another working principle of the fifth embodiment of the controllable reflective optical element of the present application;

12 is a schematic structural view of a sixth embodiment of the controllable reflective optical element of the present application.

Embodiments of the invention

[0021] The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Throughout the description, it is apparent that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

[0022] Please refer to FIG. 1, FIG. 1 is a schematic structural view of an embodiment of a headlight adjustment system for a vehicle of the present application. As shown in FIG. 1, the system 10 includes: a sensing unit 11, a control unit 12, at least one headlight 13 and an adjustment device 14.

[0023] wherein, the sensing unit 11 is configured to sense spatial parameter information of the detected object in the controlled vehicle operating state, and the control unit 12 outputs an adjustment signal to the adjusting device 14 according to the spatial parameter information of the detected object, and the adjusting device 14 responds The signal is adjusted to change the parameters of the outgoing beam of at least one of the headlights 13.

[0024] The sensing unit 11 may specifically be an ultrasonic radar, a laser, an ultrasonic sensor, a photoelectric sensor, a camera, a navigation system, a steering wheel angle sensor and the like disposed on the controlled vehicle itself, and the sensing unit 11 is mainly used for The position information, the angle information, the distance information, and the like of the vehicle in front of the controlled vehicle or the oncoming vehicle, the vehicle in the opposite lane, the rear vehicle, and the pedestrian on the road are collected.

[0025] Control unit 12 can take a variety of forms and can be a microprocessor including a storage subsystem having an appropriate number of volatile and nonvolatile memories, application specific integrated circuits (ASICs), or programmable logic devices (PLDs). The position information, the angle information, the distance information, and the like of the detected object collected by the sensing unit are converted into an adjustment signal, and the adjustment signal is further transmitted to the adjustment device 14.

The adjusting device 14 is responsive to the adjustment signal of the control unit 12 to change the parameters of the outgoing light beam projected by the at least one headlight 13 to the outside of the vehicle, specifically the intensity, angle, shape and the like of the outgoing light.

[0027] In the above embodiment, by adding an adjusting device to the headlight adjustment system of the controlled vehicle, it is possible to adjust the parameters of the outgoing beam of at least one headlight projected to the outside of the vehicle, providing a wider range and a more shape. Diverse light.

[0028] Please refer to FIG. 2, which is a schematic structural view of an embodiment of a headlight adjustment device for a vehicle of the present application. The adjustment device 14 includes a driver 141 and a controllable reflective optical element 142.

[0029] wherein the driver 141 is configured to receive an adjustment signal, and control the movement of the controllable reflective optical element 142 in response to the adjustment signal to change the position of the controllable reflective optical element 142 relative to the headlights of the vehicle, thereby changing the exit of the headlights of the vehicle. The parameters of the beam.

[0030] Alternatively, the driver 141 may be a motor or other driving element that drives the movement of the controllable reflective optical element 142. Pieces.

[0031] In this embodiment, the controllable reflective optical element 142 may be a rotating wheel, and a surface of the rotating wheel facing the incident light is provided with a reflective layer, and the rotating wheel moves under the control of the driver 141, thereby changing the front of the vehicle. The parameters of the outgoing beam of the headlight are specifically the intensity, angle, shape, etc. of the emitted light. The revolving wheel in this embodiment may further include the following three implementation manners:

[0032] Further referring to FIG. 3, FIG. 3 is a schematic structural view of a first embodiment of the controllable reflective optical element of the present application.

In the embodiment, the surface of the rotating wheel facing the incident light is provided with a reflective layer A, and the rotating wheel comprises a central axis B, the rotating wheel is non-rotating with respect to its central axis B, and the rotating wheel is opposite to its central axis B The change in the tilt angle can control the parameters of the outgoing beam. The specific description is as follows:

Referring to FIG. 2 together, in an application scenario in this embodiment, the controlled vehicle itself provides the spatial parameter information of the detected object during operation through the sensing unit 11. Specifically, when the controlled vehicle detects information such as the position, angle, and distance of the oncoming vehicle in front, the spatial parameter information of the vehicle before the reaction is converted into an adjustment signal by the analysis processing of the control unit 12, and the control unit 12 further The adjustment signal is transmitted to the driver 141 in the adjusting device 14, and the driver 141 specifically controls the controllable reflective optical element 141 according to the adjustment signal, that is, the tilt angle of the rotating wheel with respect to the central axis B, thereby changing the incident on the rotating wheel. The parameters of the outgoing beam of at least one headlight 13 of the vehicle. In the present embodiment, the driver 141 controls the exit angle of the outgoing light of the headlights 13 according to the adjustment signal of the control unit, thereby preventing the controlled vehicle from causing glare to the preceding vehicle.

[0034] Please refer to FIG. 4 further. FIG. 4 is a schematic structural view of a second embodiment of the controllable reflective optical element of the present application. The controllable reflective optics in this embodiment is similar to that in the first embodiment, and is different from the first embodiment in that the controllable reflective optical element 242 in the present application, that is, the rotating wheel comprises a central axis B1, a runner It is rotatable relative to its central axis B1, and the rotating wheel is a wedge-shaped structure, and the wedge-shaped structure faces the incident light direction, and the reflective layer A1 is disposed on the wedge-shaped surface, as described below:

[0035] The surface of the rotating wheel facing the incident light in the embodiment is provided with a reflective layer A1, and the rotating light of the rotating wheel relative to the central axis B1 is controlled by the adjusting signal, so that the incident light rays of different wedge surfaces can be controlled to have different with respect to the wedge surface. Exit angle. For a detailed description of the specific working mode and the principle of the sensing unit and the control unit, refer to the detailed description of the foregoing embodiments, and details are not described herein again.

[0036] Please refer to FIG. 5 together. FIG. 5 is a schematic structural view of a third embodiment of the controllable reflective optical element of the present application. The controllable reflective optics in this embodiment are similar to those in the first embodiment, and are different from the first embodiment in that, in this embodiment, the controllable reflective optical element 342, that is, the surface of the rotating wheel facing the incident light is provided The reflective layer A2, the reflective layer A2 is divided into different regions, each of which is shaped like a depression or a protrusion, and the depth of the depression and the height of the projection are different. And the rotating wheel comprises a central axis B2, the rotating wheel is rotatable relative to the central axis B2 thereof, and the rotation of the rotating wheel is controlled by the adjusting signal to control the parameters of the outgoing beam of the headlight, which are described as follows:

[0037] The reflective layer A2 can be divided into 3, 4, 5... N different regions. As shown in FIG. 5, A2 in this embodiment can be set to four regions of Cl, C2, C3, and C4. The shape of each area can be set to be concave or convex. For example, in the present application, the regions C1, C2, C3, and C4 may all be disposed as depressions or protrusions, but the depth or the height of the depression between each region and the adjacent region may not be the same, and the control wheel is controlled by the adjustment signal. Rotation with respect to its central axis B2 allows incident light rays of different partition faces to have different exit angles. For the specific working process and the principle of the specific adjustment mode and the sensing unit and the control unit, refer to the detailed description of the foregoing embodiments, and details are not described herein again.

[0038] In the above embodiment, by providing a headlight adjustment device on a controlled vehicle, including a controllable reflective optical element, the light-emitting parameters of the outgoing beam of the headlight are adjusted by the controllable reflective optical element to provide a range A wider, more varied shape.

Please refer to FIG. 6. FIG. 6 is a schematic structural view of a fourth embodiment of the controllable reflective optical element of the present application. As shown in FIG. 6, the controllable reflective optical element 442 in this embodiment includes a galvanometer group, and the galvanometer group includes a first galvanometer dl and a second galvanometer d2 symmetrically disposed, a first galvanometer dl and a second oscillating mirror. The mirror d2 rotates with the respective rotating shafts 01, 02 under the control of a driver (not shown). The mirror group in this embodiment may specifically use a mirror. Of course, in other embodiments, other controllable optical reflector elements may be used, which is not specifically limited in the present application. Specifically, the rotation angles of the first galvanomirror dl and the second galvanometer d2 are determined by an adjustment signal output from the control unit. Fig. 6 is a schematic view of the galvanometer group of the present application in an initial state, i.e., in the initial state, the controllable reflective optical element 442 does not change the direction of the outgoing light of the headlights.

[0040] Referring to FIG. 7, FIG. 7 is a schematic diagram of a working principle of the controllable reflective optical element of the present application. In an application scenario of the embodiment, if the control unit senses the position, angle, and distance information of the detected object (the vehicle in front or the pedestrian) relative to the controlled vehicle according to the sensing unit, it is necessary to adjust the controlled vehicle. The direction of the headlights of the car headlights is emitted closer, that is, the way of light coming out of the low beam, to avoid The driver or pedestrian in front of the car causes glare and reduces the occurrence of traffic accidents.

[0041] Referring to FIG. 8, FIG. 8 is a schematic diagram of another working principle of the controllable reflective optical element of the present application. In another application scenario of the embodiment, if the sensing unit senses the position, angle, and distance information of the detected object (the vehicle in front or the pedestrian) relative to the controlled vehicle according to the sensing unit, it is necessary to adjust the adjustment. The light exiting direction of the headlight of the vehicle is further compressed and is emitted toward a more central position of the light exiting area of the vehicle, and may also be downstream of the light path reflected by the first galvanometer d1 and the second galvanometer d2. A collecting lens E is provided for collecting the light reflected by the first galvanometer d1 and the second galvanometer d2, and emitting a parallel beam, similar to the way the high beam is emitted.

[0042] In the above embodiment, by providing a headlight adjustment device on a controlled vehicle, including a controllable reflective optical element, the light-emitting parameters of the outgoing beam of the headlight are adjusted by the controllable reflective optical element to provide a range A wider, more varied shape.

Please refer to FIG. 9, FIG. 9 is a schematic structural diagram of a fifth embodiment of the controllable reflective optical element of the present application. As shown in FIG. 9, the controllable reflective optical element 542 of the present embodiment includes a first reflective element F1 and a second reflective element F2 disposed opposite to each other, and the driver controls the relative movement of the first reflective element F1 and the second reflective element F2, and the implementation The first light reflecting element F1 and the second light reflecting element F2 in the example may be vertically symmetrically disposed. Specifically, the first light reflecting element F1 and the second light reflecting element F2 are symmetrically arranged arc reflecting elements, and the arc reflecting elements used in the embodiment are arcs having the same arc length. Of course, in other embodiments, the first reflective element F1 and the second reflective element F2 may also be arranged in a circular arc structure with different arc lengths or a parabolic structure with different focal lengths, which is not further defined in the present application. Specifically, the first reflecting element F1 and the second reflecting element F2 are oppositely disposed, and the surfaces of the first reflecting element F1 and the second reflecting element F2 are separated from each other, and the respective centers of symmetry are provided with the card slot G1. And G2, the card slots G1 and G2 are curved under the guidance of the cylinders R1, R2 centering on the respective central axes, and specifically may be relative arc motion or parabolic motion around the cylinders R1, R2.

[0044] The arc-shaped retroreflective elements in the present example may be symmetrically disposed two reflective bowls, that is, the arc-shaped retroreflective elements may extend a certain distance in a direction perpendicular to the incident direction of the light beam to match the beam size, as described below. The paraboloid can be understood. As shown in FIG. 9, in the initial state of the first light reflecting element F1 and the second light reflecting element F2, that is, the first light reflecting element F1 and the second light reflecting element F2 are in a contracted state, and are parallel to the incident light direction, in an initial state, The first light reflecting element F1 and the second light reflecting element F2 allow all light to pass Over.

[0045] In a specific application scenario of the present application, when the detecting unit detects the spatial parameter information of the preceding vehicle, the control unit analyzes that it is necessary to avoid glare of the vehicle in the preceding vehicle or the opposite lane, that is, as shown in the figure. As shown, it is necessary to avoid the emission of the light L1 and the light L2. In this case, the control unit transmits the adjustment signal to the driver of the adjustment device, so that the first light-reflecting element F1 and the second light-reflecting element F2 are moved in an arc under the guidance of the pillars R1 and R2, so that the light L1 and the light L2 can be adjusted. It is reflected by the first retroreflective element F1 to the lower second retroreflective element F2, and is similar to the effect of automatically implementing the low beam for the front vehicle. Wherein, since the two arc-shaped first reflecting elements F1 and the second reflecting elements F2 are provided, as long as the arc of the arc is determined, the incident angle and the outgoing angle of the two are fixed points with respect to the parallel beam. Therefore, by reasonably arranging the relative positions of the two, for example, in the present application, symmetrically with respect to the center of the line connecting the posts R1, R2, the light-emission parameters of the eligible outgoing beam can be obtained.

[0046] Please continue to refer to FIG. 10. FIG. 10 is another implementation manner of the present application. The shapes of the first light reflecting element F1 and the second light reflecting element F2 may be set as paraboloid objects, specifically, parallel incident light rays L1. The light reflected by the first light reflecting element F1 and the light ray L2 may pass through the focus S of the first light reflecting element F1, enter the second light reflecting element F2, and then exit in parallel. The first light reflecting element F1 and the second light reflecting element F2 in the present embodiment have a common focus S, and can ensure that the parallel incident light L1 and the light ray L2 can be emitted in parallel after passing through the light reflecting element. Of course, in other embodiments, the focal points of the first light reflecting element F1 and the second light reflecting element F2 may also be set differently, which is not further limited herein. The positional relationship between the first light reflecting element F1 and the second light reflecting element F2 can be determined by the light exiting area of the front light (i.e., the front light cover).

[0047] It should be noted that, considering the spot size of the incident light beam, the first light reflecting element F1 and the second light reflecting element F2 may extend a certain distance perpendicular to the incident direction of the light beam, but since the extending distance is generally small, It can also be considered that they each have a focus, and in addition, when both of them have a large extension distance, they can also be considered to have one focal plane.

[0048] Referring further to FIG. 11, for the light rays L3, L4, L5, and L6, in some cases, it is necessary to emit a ring-shaped light, such as illuminating the environment around the front car, or the pedestrian is located inside the ring light, avoiding direct pedestrians. The eye, the adjustment device may also include extendable dual light blocking arms 543, 544. The light blocking arms 543, 54 4 are disposed at a common center of the first light reflecting element F1 and the second light reflecting element F2 or a common focus of the two, and the faces of the double light blocking arms 543, 544 facing the incident light beam are set to reflect Surface, the driver is based on the adjustment signal The angle between the double light blocking arms 543 and 544 is controlled. The angle between the two optical arms 543, 544 and the relative arc motion of the first light reflecting element F1 and the second light reflecting element F2 can be determined according to the detection result of the distance and width of the preceding vehicle. Thereby, it is possible to output the outgoing light of different shapes, brightnesses, and angles.

[0049] Referring to FIG. 12, for the opposite lane, the first light reflecting element F1 and the second light reflecting element F2 may be symmetrically disposed, and the relative arcs of the left and right first reflecting element F1 and the second reflecting element F2 may be similarly adjusted. From the perspective of the movement, it is also possible to adjust the outgoing light of the headlights of the controlled vehicle to deviate from the opposite lane. The displacement of the first and second symmetrical reflection elements F1 and F2 can also be controlled by tracking the curvature of the curve, thereby preventing the light from being projected outside the curve and preventing the blind zone of the driver.

[0050] In the above embodiment, by providing a headlight adjustment device on a controlled vehicle, including a controllable reflective optical element, the light-emitting parameters of the outgoing beam of the headlight are adjusted by the controllable reflective optical element to provide a range A wider, more varied shape.

[0051] In summary, those skilled in the art will readily understand that the present application provides a headlight adjustment device and system for a headlight, and an output of the headlight can be output by adding an adjustment device for the headlights to the controlled vehicle. The brightness, direction, angle and other parameters of the beam are adjusted to obtain a wider range of shapes and more outgoing light, and the incidence of traffic accidents can be reduced.

The above description is only the embodiment of the present application, and thus does not limit the scope of the patent application, and the equivalent structure or equivalent process transformation made by using the specification and the drawings of the present application, or directly or indirectly applied to other The related technical fields are all included in the scope of patent protection of the present application.

[0053]

Claims

Claim

[Claim 1] A headlight adjustment device for a vehicle, wherein the adjustment device comprises:

a driver and a controllable reflective optical element, the driver for receiving an adjustment signal, controlling movement of the controllable reflective optical element in response to the adjustment signal to change the controllable reflective optical element relative to the headlight of the vehicle Position, thereby changing the parameters of the outgoing beam of the headlights of the vehicle.

[Claim 2] The adjusting device according to claim 1, wherein the controllable reflective optical element comprises a rotating wheel, and a surface of the rotating wheel facing the incident light beam is provided with a reflective layer, and the rotating wheel is The drive moves under the control of the drive.

[Claim 3] The adjusting device according to claim 2, wherein an inclination angle of the rotating wheel with respect to the center axis is adjustable.

[Claim 4] The adjusting device according to claim 2, wherein the runner is a wedge structure

The wheel is rotatable about a central axis.

[Claim 5] The adjusting device according to claim 2, wherein the reflective layer of the rotating wheel is divided into different regions, and each of the regions is shaped to be concave or convex, and The depth of the depression and the height of the protrusion are different, and the runner rotates around its central axis.

[Claim 6] The adjusting device according to claim 1, wherein the controllable reflective optical element comprises a galvanometer group, and the galvanometer group comprises a first galvanometer mirror and a second galvanometer mirror, The first galvanometer and the second galvanometer rotate with respective rotation axes under the control of the driver

[Claim 7] The adjusting device according to claim 1, wherein the controllable reflective optical element includes a first reflecting element and a second light reflecting element disposed opposite to each other, and the driver controls the first light reflecting element And the second reflective element moves relative to each other about a central axis

[Claim 8] The adjusting device according to claim 7, wherein the first light reflecting element and the second light reflecting element are symmetrically arranged arc reflecting elements, and the first reflecting element and the a surface reflecting light disposed opposite to the second light reflecting element, the first light reflecting element and the The surface facing away from the second retroreflective element absorbs light.

[Claim 9] The adjusting device according to claim 7, wherein the controllable reflective optics further includes a double disposed at a common center or a common focus of the first light reflecting element and the second light reflecting element a light blocking arm, a surface of the double light blocking arm facing the incident light beam is disposed as a reflecting surface, and the driver controls an expanding angle of the double light blocking arm according to the adjusting signal.

[Claim 10] A headlight adjustment system for a vehicle, characterized in that the system comprises a sensing unit, a control unit, at least one headlight and an adjustment device according to any of claims 1-9 The sensing unit is configured to sense spatial parameter information of the detected object in the controlled state of operation, and the control unit outputs an adjustment signal to the adjusting device according to the spatial parameter information of the detected object, The adjusting device is responsive to the adjustment signal to change a parameter of the outgoing beam of the at least one headlight.