External stray light testing device for vehicle-mounted head-up display

Abstract

The utility model relates to the technical field of vehicles, in particular to an external stray light testing device for a vehicle-mounted head-up display, which comprises a support rack on which a windshield glass is supported; the light source supporting assembly is arranged at the position of the supporting rack; the light source assembly is arranged on the light source supporting assembly, and the position and the angle of the light source assembly relative to the light source supporting assembly can be adjusted; the HUD installation assembly is arranged on the supporting rack, the HUD installation assembly is located on the cockpit side of the windshield glass, and the light source assembly is located on the non-cockpit side of the windshield glass; and the test camera assembly is located on one side of the supporting rack. According to the utility model, irradiation of external light can be simulated at multiple angles, so that the external environment of a real vehicle can be effectively simulated.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a device for testing stray light from the exterior of a vehicle head-up display. Background Technology

[0002] External stray light testing equipment for head-up displays (HUDs) is used to test HUDs. In existing technology, the windshield and its compatible HUD are assembled and fixed, placed together on a fixed fixture stand. A single-angle fixed light fixture is erected outside the windshield, using a high-power light source to simulate the external light conditions of a real vehicle. Due to the limited coverage of the fixed-angle light illumination, multi-angle illumination cannot be achieved, resulting in differences between the simulated environment and the actual external environment of a vehicle.

[0003] Therefore, a stray light testing device for vehicle head-up displays is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a stray light testing device for vehicle head-up displays, which can simulate external light irradiation from multiple angles to effectively simulate the external environment of a real vehicle.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A stray light testing device for vehicle head-up displays includes:

[0007] A support frame on which a windshield is supported;

[0008] A light source support assembly is disposed on the support frame;

[0009] A light source assembly is disposed on the light source support assembly, and the position and angle of the light source assembly relative to the light source support assembly are adjustable;

[0010] HUD mounting assembly, wherein the HUD mounting assembly is mounted on the support frame and is located on the cockpit side of the windshield, and the light source assembly is located on the non-cockpit side of the windshield;

[0011] A test camera assembly is located on one side of the support platform.

[0012] In some embodiments, the light source support assembly includes two sets of light source support frames, which are arranged at intervals relative to each other on the support frame. Each light source support frame has an arc-shaped groove, and the light source assembly is slidably disposed in the arc-shaped groove, and the light source assembly is rotatable relative to the arc-shaped groove.

[0013] In some embodiments, the light source assembly includes a light strip fixing cover, in which a light strip is disposed, and the light strip fixing cover is movably disposed in the arc-shaped groove.

[0014] In some embodiments, a fixing shaft is fixedly provided on the lamp bar fixing cover along the extending direction of the lamp bar fixing cover, and the fixing shaft passes through the arc-shaped groove.

[0015] In some embodiments, the HUD mounting assembly includes a sliding guide and a mounting bracket. The sliding guide is disposed on the support frame, and the mounting bracket is slidably disposed on the sliding guide. The mounting bracket is movable on the sliding guide along a first direction and a second direction, wherein the first direction is perpendicular to the second direction.

[0016] In some embodiments, the sliding guide includes a first guide rail extending along the first direction and a second guide rail extending along the second direction, the first guide rail and the second guide rail being connected.

[0017] In some embodiments, the HUD mounting assembly further includes a mounting plate and a slide. The mounting plate has a plurality of mounting holes evenly distributed thereon. The mounting bracket is connected to the mounting holes by fasteners. The slide is disposed at one end of the mounting plate opposite to the mounting bracket and is slidably disposed on the sliding guide frame.

[0018] In some embodiments, a plurality of height adjustment members are provided between the slide and the mounting plate, and the height adjustment members are capable of adjusting the distance between the slide and the mounting plate.

[0019] In some embodiments, a glass bracket is further included, which is rotatably mounted on the support frame. The glass bracket is provided with a wooden pad and a pressing member at each of the four corners of the windshield. The windshield is embedded between the four wooden pads. The pressing member is rotatably mounted on the glass bracket and is used to press against the windshield.

[0020] In some embodiments, the test camera assembly includes a camera support frame, a height adjustment frame, and a test camera. The height adjustment frame is disposed on the camera support frame, and the test camera is disposed on the height adjustment frame. The height adjustment frame is capable of adjusting the height of the test camera.

[0021] The beneficial effects of this utility model are:

[0022] This utility model provides a stray light testing device for an in-vehicle head-up display (HUD). A windshield is supported on a support frame. A light source support assembly is mounted on the support frame, and the position and angle of the light source assembly relative to the support assembly are adjustable. A HUD mounting assembly is mounted on the support frame for fixing the HUD. A test camera assembly is located on one side of the support frame to simulate the driver's eye observation and detect stray light. Because the position and angle of the light source assembly relative to the support assembly are adjustable, during testing under simulated real vehicle external light conditions, the light coverage and angle of the light source assembly can be adjusted to achieve multi-angle illumination, eliminating the difference between the simulated environment and the real vehicle external environment, and effectively simulating the real vehicle external environment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of an external stray light testing device for a vehicle head-up display according to this utility model;

[0025] Figure 2 This is a schematic diagram of the HUD mounting components in a vehicle-mounted head-up display external stray light testing device according to this utility model.

[0026] Figure 3 This is a schematic diagram of the glass bracket in the external stray light testing device for a vehicle head-up display according to this utility model;

[0027] Figure 4 This is a schematic diagram of the wooden pad and clamping component in the external stray light testing device for a vehicle head-up display according to this utility model;

[0028] Figure 5 This is a schematic diagram of the light source assembly and light source support frame in a stray light testing device for an external stray light display of a vehicle-mounted head-up display according to this utility model.

[0029] Figure 6 This is a schematic diagram of the test camera component in the external stray light testing device for a vehicle head-up display according to this utility model;

[0030] Figure 7 This is a schematic diagram of the gate-shaped bracket in the external stray light testing device for a vehicle head-up display according to this utility model.

[0031] In the picture:

[0032] 100. Windshield; 1. Support frame; 2. Light source support frame; 21. Arc groove; 22. First telescopic shaft; 23. Second telescopic shaft; 3. Light source assembly; 31. First arc section; 32. Middle crossbeam section; 33. Second arc section; 34. Fixed shaft; 35. First fixed plate; 36. Second fixed plate; 4. HUD mounting assembly; 41. First guide rail; 42. Second guide rail; 43. Slide table; 44. Height adjustment component; 45. Mounting plate; 46. Mounting bracket; 5. Test camera assembly; 51. Camera support frame; 52. Height adjustment frame; 53. Test camera; 6. Glass bracket; 61. Wooden pad; 62. Clamping component; 7. Gate-shaped bracket; 71. Crossbeam section. Detailed Implementation

[0033] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0034] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0035] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0036] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0037] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0038] When testing the external stray light of an in-vehicle head-up display, in order to simulate external light illumination from multiple angles and effectively simulate the actual external environment of a vehicle, such as... Figures 1-6 As shown, this utility model provides a stray light testing device for vehicle head-up display (HUD). The vehicle head-up display external stray light testing device includes a support frame 1, a light source support assembly, a light source assembly 3, a HUD mounting assembly 4, and a test camera assembly 5.

[0039] The support frame 1 supports the windshield 100, and the light source support assembly is mounted on the support frame 1. The light source assembly 3 is mounted on the light source support assembly, and the position and angle of the light source assembly 3 relative to the light source support assembly are adjustable. The HUD mounting assembly 4 is mounted on the support frame 1, with the HUD mounting assembly 4 located on the cockpit side of the windshield 100, and the light source assembly 3 located on the non-cockpit side of the windshield 100. The test camera assembly 5 is located on one side of the support frame 1.

[0040] Since the position and angle of the light source component 3 relative to the light source support component can be adjusted, when testing the illumination conditions of the actual vehicle's external light, the light illumination coverage and angle of the light source component 3 can be adjusted to achieve multi-angle illumination, eliminating the difference between the simulated environment and the actual vehicle's external environment, and effectively simulating the actual vehicle's external environment.

[0041] In some embodiments, the light source support assembly includes two sets of light source support frames 2, which are arranged relatively apart on the support frame 1. Each light source support frame 2 has an arc-shaped groove 21, in which the light source component 3 is slidably disposed, and the light source component 3 is rotatable relative to the arc-shaped groove 21. By providing the arc-shaped groove 21, the movement of the light source component 3 can be guided, thereby adjusting the illumination coverage area of ​​the light source component 3 along the arc-shaped groove 21. Furthermore, by rotating the light source component 3 relative to the arc-shaped groove 21, the illumination angle can be adjusted. After the position of the light source component 3 is adjusted, a fixing member is used to fix the light source component 3 to the light source support frame 2, thereby locking the position of the light source component 3.

[0042] like Figure 7 As shown, in some embodiments, the light source support assembly includes a portal frame 7, which is mounted on a support platform 1. A light source assembly 3 is installed on the crossbeam of the portal frame 7. The light source assembly 3 can rotate relative to the crossbeam 71 of the portal frame 7. The position and angle of the light source assembly 3 relative to the light source support assembly can be adjusted. When simulating the illumination of the external light of a real vehicle, the light illumination coverage and angle of the light source assembly 3 can be adjusted to achieve multi-angle illumination, eliminate the difference between the simulated environment and the external environment of the real vehicle, and effectively simulate the external environment of the real vehicle.

[0043] In other embodiments, the light source support assembly may also employ two sets of rotary drive components, which are arranged at intervals on the support frame 1. The two ends of the light source assembly 3 are connected to the two sets of rotary drive components respectively. The rotary drive components, which can be motors, can drive the light source assembly 3 to rotate within a certain angle. By adjusting the position and angle of the light source assembly 3 relative to the support frame 1, during tests simulating the external light illumination of a real vehicle, the light illumination angle of the light source assembly 3 can be adjusted to achieve multi-angle illumination, thus eliminating the difference between the simulated environment and the actual vehicle's external environment.

[0044] In some embodiments, the light source assembly 3 includes a light strip fixing cover, in which a light strip is disposed, and the light strip fixing cover is movably disposed in the arc-shaped groove 21. By providing the light strip fixing cover, it is convenient to install on the light source support frame 2, and the light strip fixing cover can protect the light strip located inside. In this embodiment, the light strip fixing cover includes a first arc-shaped portion 31, a middle crossbeam portion 32, and a second arc-shaped portion 33 connected in sequence, with the first arc-shaped portion 31 and the second arc-shaped portion 33 disposed opposite to each other. Through this arrangement, different types of external light can be simulated, and the light strip fixing cover can slide and rotate relative to the arc-shaped groove 21, thereby achieving adjustment of the illumination range and illumination angle.

[0045] In some embodiments, a fixing shaft 34 is fixedly disposed on the lamp strip fixing cover along the extending direction of the lamp strip fixing cover, and the fixing shaft 34 passes through the arc-shaped groove 21. Specifically, a first fixing plate 35 and a second fixing plate 36 are spaced apart on the lamp strip fixing cover, and the fixing shaft 34 is disposed between the first fixing plate 35 and the second fixing plate 36. By using the fixing shaft 34 to cooperate with the arc-shaped groove 21, the lamp strip fixing cover can be moved axially and radially along the fixing shaft 34, thereby realizing the adjustment of multiple angles and positions.

[0046] In some embodiments, the light source support frame 2 is rotatably mounted on the support platform 1. A first telescopic shaft 22 and a second telescopic shaft 23 are rotatably connected at the rotatable connection between the light source support frame 2 and the support platform 1. By adjusting the lengths of the first telescopic shaft 22 and the second telescopic shaft 23, the angle of the light source support frame 2 relative to the support platform 1 can be adjusted, thereby allowing for further flexible adjustment of the illumination angle and illumination range of the light strip.

[0047] In some embodiments, the HUD mounting assembly 4 includes a sliding guide frame and a mounting bracket 46. The sliding guide frame is mounted on the support frame 1, and the mounting bracket 46 is slidably mounted on the sliding guide frame. The mounting bracket 46 is movable on the sliding guide frame along a first direction and a second direction, wherein the first direction is perpendicular to the second direction. In this embodiment, the first direction is the extension direction of the light strip fixing cover. With the above arrangement, the position of the mounting bracket 46 can be adjusted along the first direction, thereby adjusting the position of the HUD located thereon to meet the testing requirements of left-hand drive and right-hand drive vehicles. Furthermore, the position of the mounting bracket 46 can be adjusted along the second direction to further improve the adaptability of the test.

[0048] In some embodiments, the sliding guide frame includes a first guide rail 41 extending along a first direction and a second guide rail 42 extending along a second direction, the first guide rail 41 and the second guide rail 42 being connected. By setting the first guide rail 41 and the second guide rail 42, the position of the mounting bracket 46 can be guided, thereby ensuring that the position adjustment process is carried out along a set trajectory.

[0049] In some embodiments, the HUD mounting assembly 4 further includes a mounting plate 45 and a slide 43. The mounting plate 45 has a plurality of mounting holes evenly distributed on it. A mounting bracket 46 is connected to the mounting holes via fasteners. The slide 43 is disposed at one end of the mounting plate 45 opposite to the mounting bracket 46 and is slidably mounted on a sliding guide frame. Because the mounting plate 45 has a plurality of mounting holes evenly distributed on it, the position of the mounting bracket 46 can be adjusted according to actual needs when fixing it to the mounting plate 45, and then locked using fasteners. The slide 43 facilitates cooperation with the first guide rail 41 and the second guide rail 42.

[0050] In some embodiments, a plurality of height adjustment members 44 are provided between the slide 43 and the mounting plate 45, and the height adjustment members 44 can adjust the distance between the slide 43 and the mounting plate 45. By providing the height adjustment members 44, the height of the mounting plate 45 can be adjusted according to the actual testing needs, thereby achieving the purpose of adjusting the HUD height.

[0051] In some embodiments, the vehicle head-up display external stray light testing device further includes a glass bracket 6, which is rotatably mounted on the support frame 1. At each of the four corners of the windshield 100, the glass bracket 6 is provided with a wooden pad 61 and a clamping member 62. The windshield 100 is embedded between the four wooden pads 61. The clamping member 62 is rotatably mounted on the glass bracket 6 and is used to press against the windshield 100. Because the glass bracket 6 is rotatably mounted on the support frame 1, the angle of the windshield 100 can be adjusted as needed during testing. The windshield is fixed in place by the cooperation of the wooden pads 61 and the clamping member 62, preventing the windshield from falling off.

[0052] In some embodiments, the test camera assembly 5 includes a camera support frame 51, a height adjustment frame 52, and a test camera 53. The height adjustment frame 52 is mounted on the camera support frame 51, and the test camera 53 is mounted on the height adjustment frame 52. The height adjustment frame 52 is capable of adjusting the height of the test camera 53. Specifically, the height adjustment frame 52 can adopt a gear and rack structure or a lead screw and nut structure. The height adjustment frame 52 can adjust the height of the test camera 53 to adapt to different HUDs and tests at different positions.

[0053] The usage procedure of this vehicle head-up display external stray light testing device is as follows:

[0054] Determine the relative positions of the windshield 100 and the HUD in advance, and position, install and secure the HUD according to the actual situation.

[0055] Determine the center eye position and, based on the center eye position, mount the test camera 53 on the height adjustment bracket 52 and move the camera to the eye point test position.

[0056] Adjust the overall position of the light source assembly 3, and select the corresponding stray light simulation environment according to the specific situation of the HUD by adjusting the angle of the lamp strip fixing cover and moving the lamp strip fixing cover.

[0057] Start the automated testing program to automatically perform stray light testing.

[0058] The automated testing system automatically detects stray light locations using built-in algorithms and automatically generates a stray light test report after the test is completed.

[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for testing stray light from the exterior of a vehicle head-up display, characterized in that, include: A support frame (1) on which a windshield (100) is supported; A light source support assembly is disposed on the support frame (1); A light source assembly (3) is disposed on the light source support assembly, and the position and angle of the light source assembly (3) relative to the light source support assembly are adjustable; HUD mounting assembly (4), the HUD mounting assembly (4) is disposed on the support frame (1), and the HUD mounting assembly (4) is located on the cockpit side of the windshield (100), and the light source assembly (3) is located on the non-cockpit side of the windshield (100); Test camera assembly (5), which is located on one side of the support frame (1).

2. The stray light testing device for vehicle head-up display according to claim 1, characterized in that, The light source support assembly includes two sets of light source support frames (2), which are arranged at intervals on the support frame (1). The light source support frame (2) has an arc groove (21), and the light source assembly (3) is slidably arranged in the arc groove (21) and can rotate relative to the arc groove (21).

3. The stray light testing device for vehicle head-up display according to claim 2, characterized in that, The light source assembly (3) includes a lamp strip fixing cover, in which a lamp strip is disposed, and the lamp strip fixing cover is movably disposed in the arc-shaped groove (21).

4. The stray light testing device for vehicle head-up display according to claim 3, characterized in that, A fixing shaft (34) is fixedly provided on the lamp strip fixing cover along the extension direction of the lamp strip fixing cover, and the fixing shaft (34) passes through the arc-shaped groove (21).

5. The stray light testing device for vehicle head-up display according to claim 1, characterized in that, The HUD mounting assembly (4) includes a sliding guide frame and a mounting bracket (46). The sliding guide frame is disposed on the support frame (1), and the mounting bracket (46) is slidably disposed on the sliding guide frame. The mounting bracket (46) is movable on the sliding guide frame along a first direction and a second direction, wherein the first direction is perpendicular to the second direction.

6. The stray light testing device for vehicle head-up display according to claim 5, characterized in that, The sliding guide frame includes a first guide rail (41) extending along the first direction and a second guide rail (42) extending along the second direction, and the first guide rail (41) and the second guide rail (42) are connected.

7. The vehicle-mounted head-up display external stray light testing device according to claim 5, characterized in that, The HUD mounting assembly (4) further includes a mounting plate (45) and a slide (43). The mounting plate (45) has a plurality of mounting holes evenly distributed on it. The mounting bracket (46) is connected to the mounting holes by fasteners. The slide (43) is disposed at one end of the mounting plate (45) away from the mounting bracket (46). The slide (43) is slidably disposed on the sliding guide frame.

8. The vehicle-mounted head-up display external stray light testing device according to claim 7, characterized in that, A plurality of height adjustment components (44) are provided between the slide (43) and the mounting plate (45), and the height adjustment components (44) can adjust the distance between the slide (43) and the mounting plate (45).

9. The stray light testing device for vehicle head-up display according to claim 1, characterized in that, It also includes a glass bracket (6), which is rotatably mounted on the support frame (1). The glass bracket (6) is provided with a pad (61) and a clamping member (62) at each of the four corners of the windshield (100). The windshield (100) is embedded between the four pads (61). The clamping member (62) is rotatably mounted on the glass bracket (6) and is used to press against the windshield (100).

10. The vehicle-mounted head-up display external stray light testing device according to claim 1, characterized in that, The test camera assembly (5) includes a camera support frame (51), a height adjustment frame (52), and a test camera (53). The height adjustment frame (52) is mounted on the camera support frame (51), and the test camera (53) is mounted on the height adjustment frame (52). The height adjustment frame (52) is capable of adjusting the height of the test camera (53).

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