Vehicle window assembly and vehicle

Abstract

The embodiment of the application discloses a kind of vehicle window assembly and vehicle, it is related to vehicle technical field, the vehicle window assembly of the embodiment of the application includes: glass plate and laser radar module;The laser radar module is arranged in the inner side of the glass plate;The laser radar module includes: at least one first laser radar arranged in the middle and at least one second laser radar arranged on the left side and the right side;The horizontal field of view angle of the laser radar module is greater than or equal to 100°.The present application solves the defects of the current vehicle-mounted laser radar external scheme, provides a kind of vehicle-mounted laser radar built-in scheme capable of meeting the actual requirements of signal transmission and reception needed by unmanned driving.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a vehicle window assembly and a vehicle. Background Art

[0002] Laser radar, also known as LiDAR, is a sensor based on non-contact laser ranging technology. It consists of three major components: a transmitting system, a receiving system, and an information processing system. Laser radar is key sensing hardware for the implementation of autonomous driving applications. Currently, autonomous vehicles on the market typically use mechanical laser radars and place them on the roof, headlights, front grille, and front roof sheet metal. However, this external on-board laser radar solution has disadvantages such as large size and weight, susceptibility to adverse weather conditions such as rain and snow, impact from gravel, high wind resistance, and difficulty in anti-fogging and defrosting. How to implement an on-board laser radar built into the vehicle and capable of meeting the actual requirements for signal transmission and reception required for autonomous driving is a technical problem that urgently needs to be solved with existing technologies. Summary of the Invention

[0003] In order to solve the shortcomings of the current external vehicle-mounted laser radar solution, such as large size and weight, susceptibility to severe weather such as rain and snow, impact from gravel, large wind resistance, and difficulty in anti-fogging and defrosting, the present invention proposes a vehicle window assembly and a vehicle.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a vehicle window assembly is provided, which includes: a glass plate and a laser radar module; the laser radar module is arranged on the inner side of the glass plate; the laser radar module includes: at least one first laser radar arranged in the middle and at least one second laser radar each arranged on the left and right sides; the horizontal field of view angle of the laser radar module is greater than or equal to 100°.

[0005] Optionally, the horizontal field of view angle of the first laser radar is greater than or equal to 20° and less than or equal to 30°, and the horizontal field of view angle of the second laser radar is greater than or equal to 40° and less than or equal to 50°.

[0006] Optionally, an anti-reflection film is provided on at least part of a first target area on the glass plate, and the first target area includes: an area where the incident angle of the first laser radar is greater than 60° in a signal transmission area of ​​the first laser radar on the glass plate.

[0007] Optionally, an anti-reflection film is provided on at least part of the second target area on the glass plate, and the second target area includes: an area where the incident angle of the second laser radar is greater than or equal to 62° in the signal transmission area of ​​the second laser radar on the glass plate.

[0008] Optionally, an anti-reflection film is provided on at least a portion of a first area on the glass plate, the first area being the overlapping area of ​​the second area and the third area; the second area being the area where the incident angle of the first laser radar is greater than 60° in the signal transmission area of ​​the first laser radar on the glass plate; and the third area being the area where the incident angle of the second laser radar is greater than or equal to 62° in the signal transmission area of ​​the second laser radar on the glass plate.

[0009] Optionally, an anti-reflection film is provided on at least a portion of the fourth area on the glass plate, and the fourth area is the overlapping area of ​​the fifth area and the sixth area; the fifth area is the projection area of ​​the field of view of the first laser radar on the glass plate; and the sixth area is the projection area of ​​the field of view of the second laser radar on the glass plate.

[0010] Optionally, the anti-reflection film can increase the transmittance by 4% to 7% at an incident angle of 66° to 72° for near-infrared wavelengths from 905 nm to 940 nm or 1550 nm.

[0011] Optionally, a first laser radar is arranged in the middle, and a second laser radar is arranged on the left and right sides.

[0012] Optionally, two of the first laser radars are arranged vertically in the middle, and one of the second laser radars is arranged on the left and right sides.

[0013] Optionally, two of the first laser radars are arranged vertically in the middle, and two of the second laser radars are arranged vertically on the left and right sides.

[0014] Optionally, two horizontally arranged first laser radars are provided in the middle, and one second laser radar is provided on the left and right sides.

[0015] Optionally, the first laser radar is a long-range laser radar, and the second laser radar is a blind spot laser radar.

[0016] Optionally, the vertical field of view angle of the first laser radar is greater than or equal to 6° and less than or equal to 9°, the angular resolution of the first laser radar is (0.08° to 0.12°)×(0.08° to 0.12°), and the ranging capability of the first laser radar is more than 200 meters for a 10% reflection target.

[0017] Optionally, the vertical field of view angle of the second laser radar is greater than or equal to 10° and less than or equal to 15°, the angular resolution of the second laser radar is (0.18° to 0.22°)×(0.18° to 0.22°), and the ranging capability of the second laser radar is more than 100 meters for a 10% reflection target.

[0018] Optionally, the first laser radar and the second laser radar are both pure solid-state laser radars.

[0019] Optionally, in the horizontal direction, the distance between the first laser radar and the second laser radar is 0.4m-1.2m.

[0020] Optionally, in the vertical direction, the distance between the two first laser radars arranged one above the other is 0.2m-1.0m.

[0021] Optionally, in the horizontal direction, the distance between the first laser radar and the second laser radar is 0.4m-1.2m;

[0022] In the vertical direction, the distance between the two first laser radars arranged up and down is 0.2m-1.0m, and the distance between the two second laser radars arranged up and down is 0.2m-1.0m.

[0023] Optionally, the distance between the two horizontally arranged first laser radars is 0.2m-1.0m, the distance between the first laser radar on the left and the second laser radar is 0.4m-1.2m, and the distance between the first laser radar on the right and the second laser radar is 0.4m-1.2m.

[0024] In order to achieve the above object, according to another aspect of the present invention, a vehicle is provided. The vehicle comprises: a vehicle body and any one of the above-mentioned window assemblies, wherein the window assembly is mounted on the vehicle body.

[0025] The beneficial effects of the present invention are:

[0026] The present invention arranges the laser radar module on the inner side of the vehicle window glass panel, that is, the vehicle-mounted laser radar is built-in, which solves the problems of the current external vehicle-mounted laser radar solution, such as large size and weight, susceptibility to severe weather such as rain and snow, impact of gravel, large wind resistance, and difficulty in anti-fogging and defrosting. In addition, the horizontal field of view angle of the laser radar module of the present invention is greater than or equal to 100°, which meets the actual requirements of signal transmission and reception for unmanned driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0028] Figure 11 is a bottom view schematic diagram of a vehicle window assembly provided by one embodiment of the present invention;

[0029] Figure 2 yes Figure 1 A partial cross-sectional view along line II;

[0030] Figure 3 is a bottom view schematic diagram of a vehicle window assembly provided by another embodiment of the present invention;

[0031] Figure 4 is a bottom view schematic diagram of a vehicle window assembly provided by another embodiment of the present invention;

[0032] Figure 5 is a bottom view schematic diagram of a vehicle window assembly provided by another embodiment of the present invention;

[0033] Figure 6 yes Figure 5 Schematic diagram of a partial section along line II-II;

[0034] Figure 7 1 is a schematic diagram of the projection of the field of view of a laser radar on a glass plate provided by one embodiment of the present invention;

[0035] Figure 8 It is a schematic diagram of the coordinate system of the present invention.

[0036] Explanation of reference numerals: 1. Glass plate; 11. Outer glass plate; 12. Middle layer; 13. Inner glass plate; 2. LiDAR module; 21. First LiDAR; 22. Second LiDAR; 3. Anti-reflection film; 41. Fifth region; 42. Sixth region; 43. Fourth region. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0038] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] It should be noted that the vehicle window assembly of the present invention can be used in the automotive field, and can also be used in any field other than the automotive field. The application field of the vehicle window assembly of the present invention is not limited. The vehicle window assembly of the present invention can be used for the front window of a vehicle, and can also be used for other windows of a vehicle.

[0040] In order to solve the defects of the current external vehicle-mounted laser radar solution, the present invention provides a vehicle-mounted laser radar built-in solution that can meet the actual requirements of signal transmission and reception required for unmanned driving.

[0041] Figure 1 1 is a bottom view schematic diagram of a vehicle window assembly provided by an embodiment of the present invention. Figure 2 yes Figure 1 A partial cross-sectional view along line II is shown in FIG. Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the vehicle window assembly of the present invention includes: a glass plate 1 and a laser radar module 2.

[0042] The laser radar module 2 is disposed on the inner side of the glass plate 1. The laser radar module 2 includes: at least one first laser radar 21 disposed in the middle, and at least one second laser radar 22 disposed on the left and right sides. The horizontal field of view of the laser radar module 2 is greater than or equal to 100°.

[0043] like Figure 1 and Figure 2 As shown, the present invention places the LiDAR module 2 inside the glass plate 1, effectively creating a built-in vehicle-mounted LiDAR. This solves the problems of existing external LiDAR solutions, such as bulk and weight, susceptibility to inclement weather like rain and snow, impact from gravel, high wind resistance, and difficulty preventing fog and defrosting. Furthermore, the LiDAR module 2 of the present invention boasts a horizontal field of view greater than or equal to 100°, thus satisfying LiDAR ranging applications in a variety of driving scenarios, including urban and highway driving.

[0044] In a preferred embodiment of the present invention, the horizontal field of view angle of the laser radar module 2 is greater than or equal to 120°.

[0045] In one embodiment of the present invention, the laser radar module 2 further includes a bracket, on which the first laser radar 21 and the second laser radar 22 are both arranged, and the bracket is fixed on the glass plate 1.

[0046] In one embodiment of the present invention, Figure 6 As shown, the glass plate 1 includes an outer glass plate 11, an intermediate layer 12, and an inner glass plate 13. The intermediate layer 12 is sandwiched between the outer glass plate 11 and the inner glass plate 13. The outer glass plate 11 has a first surface and a second surface facing each other, with the second surface facing the intermediate layer 12. The inner glass plate 13 has a third surface and a fourth surface facing each other, with the third surface facing the intermediate layer 12. A laser radar module 2 composed of multiple laser radars is installed behind the glass plate 1 (inside the cabin).

[0047] In one embodiment of the present invention, the glass plate 1 is specifically a front windshield of a car, and the range of the vehicle installation angle is 22° to 32°. In other embodiments of the present invention, the glass plate 1 can also be other surface glass of the car.

[0048] In one embodiment of the present invention, the first laser radar 21 is a long-range laser radar, and the second laser radar 22 is a blind spot laser radar.

[0049] In one embodiment of the present invention, the first laser radar 21 adopts a high-precision laser radar. The horizontal field of view angle of the first laser radar 21 is greater than or equal to 20° and less than or equal to 30°, the vertical field of view angle of the first laser radar 21 is greater than or equal to 6° and less than or equal to 9°, the angular resolution of the first laser radar 21 is (0.08° to 0.12°)×(0.08° to 0.12°), and the ranging capability of the first laser radar 21 is more than 200 meters for a 10% reflective target. Preferably, the angular resolution of the first laser radar 21 is 0.1°×0.1°.

[0050] In one embodiment of the present invention, the second laser radar 22 is a medium-precision laser radar. The horizontal field of view angle of the second laser radar 22 is greater than or equal to 40° and less than or equal to 50°, the vertical field of view angle of the second laser radar 22 is greater than or equal to 10° and less than or equal to 15°, the angular resolution of the second laser radar 22 is (0.18° to 0.22°)×(0.18° to 0.22°), and the ranging capability of the second laser radar 22 is more than 100 meters for a 10% reflective target. Preferably, the angular resolution of the second laser radar 22 is 0.2°×0.2°.

[0051] In one embodiment of the present invention, the first laser radar 21 and the second laser radar 22 are both pure solid-state laser radars.

[0052] The present invention adopts a pure solid-state laser radar in view of the characteristics of automotive-grade equipment that need to work continuously in environments such as continuous vibration, high and low temperatures, high temperature and high humidity. Compared with mechanical laser radars, pure solid-state laser radars only scan in one direction at a certain angle, and the coverage range is limited. However, the complex high-frequency rotating mechanical structure is eliminated, the durability is greatly improved, and the volume can be greatly reduced. The pure solid-state laser radar of the present invention can adopt either OPA optical phased array or Flash laser radar.

[0053] The pure solid-state laser radar used in this invention has significantly smaller mechanical dimensions than traditional mechanical laser radars and semi-solid-state laser radars. The dimensions of a single laser radar are 50mm to 70mm wide (W), 30mm to 40mm high (H), and 30mm to 40mm deep (D). It also has a low weight of 100g to 200g. These advantages further reduce the load-bearing capacity of the bracket fixed to the glass plate 1, thereby increasing the bracket's durability and safety.

[0054] The horizontal field of view angle of a pure solid-state laser radar is usually relatively small, and the higher the precision of the pure solid-state laser radar, the smaller the horizontal field of view angle. Therefore, the present invention adopts at least three pure solid-state laser radars (at least one first laser radar 21 in the middle and at least one second laser radar 22 on each side) to be arranged together to meet the field of view requirements of the main viewing area, and can meet the application of laser radar ranging in various driving scenarios such as urban areas and highways.

[0055] In one embodiment of the present invention, an anti-reflection coating 3 is provided on at least a portion of a first target area on the glass plate 1. The first target area includes an area within the signal transmission region of the first laser radar on the glass plate where the incident angle of the first laser radar is greater than 60°. Preferably, the anti-reflection coating 3 can be provided in areas where the incident angle of the first laser radar is greater than 62°, greater than 64°, greater than 66°, or greater than 68°.

[0056] In a preferred embodiment of the present invention, the present invention sets an anti-reflection film 3 for the first laser radar in an area where the incident angle is greater than 68°. Since the first laser radar 21 adopts a high-precision laser radar and has good signal penetration performance, an anti-reflection film can be set in the area with a larger incident angle to improve the signal penetration performance in the edge area of ​​the high-precision laser radar.

[0057] In one embodiment of the present invention, by installing an anti-reflection coating 3 in the wide-angle region of the first laser radar 21 and adding the glass plate 1 (at a vehicle mounting angle ranging from 22° to 32°), the first laser radar 21 can achieve a ranging distance of over 150 meters for a 10% reflective target. Without the anti-reflection coating, the first laser radar 21 can only measure approximately 120 meters for a 10% reflective target. This demonstrates that the present invention effectively improves the ranging capability of the first laser radar 21 by installing the anti-reflection coating.

[0058] In one embodiment of the present invention, an anti-reflection film 3 is provided on at least a portion of a second target area on the glass plate 1. The second target area includes an area within the signal transmission area of ​​the second laser radar on the glass plate where the incident angle of the second laser radar is greater than or equal to 62°. Preferably, the anti-reflection film 3 can be provided in an area where the incident angle of the second laser radar is greater than or equal to 64°, greater than or equal to 66°, greater than or equal to 68°, or greater than or equal to 70°. Since the second laser radar 22 is a medium-precision laser radar, its signal penetration performance is inferior to that of a high-precision laser radar. Compared to a high-precision laser radar, it is more necessary to provide an anti-reflection film in a wide-angle area to improve signal penetration performance in edge areas.

[0059] In one embodiment of the present invention, by installing an anti-reflection coating 3 in the wide-angle region of the second laser radar 22 and adding the glass plate 1 (at a vehicle mounting angle ranging from 22° to 32°), the second laser radar 22 can achieve a ranging distance of over 80 meters for a 10% reflective target. Without the anti-reflection coating, the second laser radar 22 can only measure approximately 60 meters for a 10% reflective target. This demonstrates that the present invention effectively improves the ranging capability of the second laser radar 22 by installing the anti-reflection coating.

[0060] It should be noted that the anti-reflection film of the present invention is an AR (Anti-Rflection) film, also known as an anti-reflection film.

[0061] It should be noted that, in one embodiment of the present invention, the incident angle of the present invention is a comprehensive incident angle, which is the final angle obtained by superimposing the vertical incident angle (the loading angle of the glass plate 1) and the horizontal incident angle (the angle between the light beam emitted by the laser radar to both horizontal sides and the vertical line in front).

[0062] It should be noted that, in one embodiment of the present invention, the angle of incidence refers to the angle between the laser radar signal beam and the normal to the surface of the glass plate 1. More specifically, the angle of incidence refers to the angle between the laser radar signal beam and the normal to the fourth surface of the glass plate 1.

[0063] like Figure 3As shown, in some embodiments of the present invention, in order to improve the signal transmittance of the first laser radar 21 and the second laser radar 22, the present invention further provides an anti-reflection film 3 on at least part of the target area on the glass plate 1. The target area is the large-angle area of ​​the first laser radar 21 and the second laser radar 22. Specifically, the large-angle area is the area where the incident angle of the first laser radar 21 is greater than 60° and the area where the incident angle of the second laser radar 22 is greater than or equal to 62°. Taking into account that the signal transmittance of the laser radar in the large-angle area is poor, which affects the ranging capability, the present invention provides an anti-reflection film 3 in the large-angle area to meet the signal penetration performance at various angles, so that the area within the ranging field of view of the entire laser radar module 2 meets the ranging requirements in actual vehicle scenarios.

[0064] In a specific embodiment of the present invention, an anti-reflection film 3 is provided on all the target areas on the glass plate 1 to maximize the improvement of signal penetration performance.

[0065] In another embodiment of the present invention, an anti-reflection film 3 is provided on at least a portion of a first area on the glass plate 1, the first area being the overlapping area of ​​the second area and the third area; the second area being the area where the incident angle of the first laser radar is greater than 60° in the signal transmission area of ​​the first laser radar on the glass plate; and the third area being the area where the incident angle of the second laser radar is greater than or equal to 62° in the signal transmission area of ​​the second laser radar on the glass plate.

[0066] In this embodiment, to improve the signal transmittance of the first and second laser radars 21, 22, an anti-reflection coating 3 is also provided on at least a portion of a first area of ​​the glass plate 1. This first area is the overlapping region of the wide-angle ranges of the first and second laser radars 21, 22. Compared to the previous embodiment, the anti-reflection coating 3 in this embodiment is only applied to a very small area. Compared to coating the entire wide-angle area, this saves costs and protects the appearance. It also ensures that the entire area within the ranging field of view of the laser radar module 2 meets the ranging requirements in actual vehicle scenarios.

[0067] In a specific embodiment of the present invention, an anti-reflection film 3 is provided on all the first areas on the glass plate 1 to maximize the improvement of signal penetration performance.

[0068] In another embodiment of the present invention, an anti-reflection film 3 is provided on at least a portion of the fourth area on the glass plate 1, and the fourth area is the overlapping area of ​​the fifth area and the sixth area; the fifth area is the projection area of ​​the field of view of the first laser radar on the glass plate; and the sixth area is the projection area of ​​the field of view of the second laser radar on the glass plate. Figure 7Schematic diagram of the projection of the field of view of the laser radar on the glass plate according to the embodiment of the present invention. Figure 7 In the figure, the fifth area 41 is the projection area of ​​the field of view of the first laser radar 21 on the glass plate 1, the sixth area 42 is the projection area of ​​the field of view of the second laser radar 22 on the glass plate 1, and the fourth area 43 is the overlapping area of ​​the fifth area 41 and the sixth area 42.

[0069] In one embodiment of the present invention, to improve the signal transmittance of the first laser radar 21 and the second laser radar 22, an anti-reflection coating 3 is provided on at least a portion of the fourth region of the glass plate 1. This fourth region covers a portion of the overlapping area of ​​the wide-angle range of the first laser radar 21 and the second laser radar 22. Compared to coating the entire wide-angle region, the anti-reflection coating 3 of this embodiment is only provided in a very small area, which saves costs and protects the appearance. It also ensures that the entire area within the ranging field of view of the laser radar module 2 meets the ranging requirements in actual vehicle scenarios.

[0070] In a specific embodiment of the present invention, an anti-reflection film 3 is provided on all the fourth areas on the glass plate 1 to maximize the improvement of signal penetration performance.

[0071] In one embodiment of the present invention, the anti-reflection film 3 can increase the transmittance by 4% to 7% at an incident angle of 66° to 72° for the near-infrared band of 905 nm to 940 nm or 1550 nm.

[0072] In one embodiment of the present invention, the anti-reflection film 3 is composed of a plurality of high-refractive index layers and a plurality of low-refractive index layers stacked together.

[0073] In one embodiment of the present invention, the anti-reflection film 3 is specifically provided on the fourth surface of the glass plate 1 , ie, the surface close to the interior of the vehicle cabin.

[0074] In one embodiment of the present invention, the ranging capability of the vehicle window assembly after the above design of the present invention is as follows: after adding the glass plate 1 (at the vehicle installation angle, the vehicle installation angle range is 22° to 32°), the ranging capability of the laser radar module 2 (10% reflection target) can still reach more than 150m for the first laser radar 21 in the middle, and more than 80m for the second laser radars 22 on both sides.

[0075] The specific structure of the vehicle window assembly of the present invention will be described in detail below through several specific embodiments.

[0076] like Figure 1 and Figure 2As shown, in one embodiment of the present invention, a first laser radar 21 is provided in the middle of the laser radar module 2, and a second laser radar 22 is provided on the left and right sides. The heights of the second laser radars 22 on the left and right sides are the same, and the height of the first laser radar 21 is equal to the height of the second laser radar 22. Optionally, the height of the first laser radar 21 is higher than the height of the second laser radar 22 (not shown in the figure). Figure 1 and Figure 2 As shown, in order to improve the signal penetration performance in the large angle area, the present invention also sets an anti-reflection film 3 on the partially overlapping area of ​​the large angle area of ​​the first laser radar 21 and the second laser radar 22 on the glass plate 1. Figure 1 and Figure 2 In the embodiment of the present invention, the anti-reflection film 3 is specifically arranged on the overlapping area of ​​the projection area of ​​the field of view of the first laser radar 21 on the glass plate 1 and the projection area of ​​the field of view of the second laser radar 22 on the glass plate 1, that is, it is arranged on the fourth area 43 mentioned above. Figure 1 and Figure 2 In the embodiment, the first laser radar 21 is a high-precision laser radar, and the second laser radar 22 is a medium-precision laser radar.

[0077] Figure 8 It is a schematic diagram of the coordinate system of the present invention, such as Figure 8 As shown, the present invention takes the center point of the top edge of the glass plate 1 as the origin, horizontally to the right is the positive direction of the x-axis, and vertically downward is the positive direction of the y-axis. The height difference between the top and bottom edges of the glass plate 1 is L.

[0078] In one embodiment of the present invention, Figure 1 and Figure 2 In the vehicle window assembly of the embodiment, the horizontal distance between the first laser radar 21 and the second laser radar 22 is greater than or equal to 0.4m and less than or equal to 1.2m, and the vertical distance between the first laser radar 21 and the second laser radar 22 is greater than or equal to 0m and less than or equal to 1.0m. Preferably, the horizontal distance between the first laser radar 21 and the second laser radar 22 is greater than or equal to 0.4m and less than or equal to 0.7m, and the vertical distance between the first laser radar 21 and the second laser radar 22 is greater than or equal to 0.3m and less than or equal to 0.8m.

[0079] In an optional embodiment of the present invention, Figure 8 In the coordinate system shown, Figure 1 and Figure 2 The positions of the components of the vehicle window assembly of the embodiment can be seen in Table 1 below.

[0080]

[0081]

[0082] Table 1

[0083] It should be noted that, in the table of the present invention, m refers to the unit meter.

[0084] like Figure 3 As shown, in one embodiment of the present invention, two first laser radars 21 are arranged in an upper and lower arrangement in the middle of the laser radar module 2, and a second laser radar 22 is provided on the left and right sides. The heights of the second laser radars 22 on the left and right sides are the same, the height of the upper first laser radar 21 is higher than the height of the second laser radar 22, and the height of the lower first laser radar 21 is lower than the height of the second laser radar 22. Figure 3 As shown, in order to improve the signal penetration performance in the large angle area, the present invention also sets an anti-reflection film 3 on the partially overlapping area of ​​the large angle area of ​​the first laser radar 21 and the second laser radar 22 on the glass plate 1. Figure 3 In the embodiment, the anti-reflection film 3 is specifically arranged on the overlapping area of ​​the projection area of ​​the field of view of the first laser radar 21 on the glass plate 1 and the projection area of ​​the field of view of the second laser radar 22 on the glass plate 1. Figure 3 In the embodiment, the first laser radar 21 is a high-precision laser radar, and the second laser radar 22 is a medium-precision laser radar.

[0085] In one embodiment of the present invention, Figure 3 In the vehicle window assembly of the embodiment, the horizontal distance between the first laser radar 21 and the second laser radar 22 is greater than or equal to 0.4m and less than or equal to 1.2m, and the vertical distance between the two first laser radars 21 is greater than or equal to 0.2m and less than or equal to 1.0m. Preferably, the horizontal distance between the first laser radar 21 and the second laser radar 22 is greater than or equal to 0.4m and less than or equal to 0.7m, and the vertical distance between the two first laser radars 21 is greater than or equal to 0.3m and less than or equal to 0.8m.

[0086] In an optional embodiment of the present invention, Figure 8 In the coordinate system shown, Figure 3 The positions of the components of the vehicle window assembly of the embodiment can be seen in Table 2 below.

[0087]

[0088] Table 2

[0089] like Figure 4 As shown, in one embodiment of the present invention, two first laser radars 21 are arranged in a vertical arrangement in the middle of the laser radar module 2, and two second laser radars 22 are arranged in a vertical arrangement on the left and right sides. The three laser radars in the upper row are of the same height, and the three laser radars in the lower row are also of the same height. Figure 4As shown, in order to improve the signal penetration performance in the large angle area, the present invention also sets an anti-reflection film 3 on the partially overlapping area of ​​the large angle area of ​​the first laser radar 21 and the second laser radar 22 on the glass plate 1. Figure 4 In the embodiment, the anti-reflection film 3 is specifically arranged on the overlapping area of ​​the projection area of ​​the field of view of the first laser radar 21 on the glass plate 1 and the projection area of ​​the field of view of the second laser radar 22 on the glass plate 1. Figure 4 In the embodiment, the first laser radar 21 is a high-precision laser radar, and the second laser radar 22 is a medium-precision laser radar.

[0090] In one embodiment of the present invention, Figure 4 In the vehicle window assembly of the embodiment, the height difference between the upper and lower rows of laser radars is greater than or equal to 0m and less than or equal to 1.0m, and the horizontal distance between the first laser radar 21 and the second laser radar 22 in the upper and lower rows of laser radars is greater than or equal to 0.4m and less than or equal to 1.2m. Preferably, the height difference between the upper and lower rows of laser radars is greater than or equal to 0.4m and less than or equal to 0.8m, and the horizontal distance between the first laser radar 21 and the second laser radar 22 in the upper and lower rows of laser radars is greater than or equal to 0.4m and less than or equal to 0.8m.

[0091] In an optional embodiment of the present invention, Figure 8 In the coordinate system shown, Figure 4 The positions of the components of the vehicle window assembly of the embodiment can be seen in Table 3 below.

[0092]

[0093] Table 3

[0094] like Figure 5 and Figure 6 As shown, in one embodiment of the present invention, two first laser radars 21 are arranged horizontally in the middle of the laser radar module 2, and a second laser radar 22 is provided on the left and right sides. The heights of the two second laser radars 22 on the left and right sides are consistent, and the heights of the two first laser radars 21 in the middle are consistent, and the heights of the two first laser radars 21 are equal to the heights of the second laser radars 22. Optionally, the heights of the two first laser radars 21 are higher than the heights of the second laser radars 22. Figure 5 and Figure 6 In the embodiment shown, since four laser radars are arranged, there is no need to provide an anti-reflection film 3 on the glass plate 1, and the area within the ranging field angle of the entire laser radar module 2 can also meet the ranging requirements in actual vehicle scenarios.

[0095] exist Figure 5 and Figure 6In the embodiment, the first laser radar 21 is a high-precision laser radar, and the second laser radar 22 is a medium-precision laser radar or a low-precision laser radar.

[0096] The specific parameters of low-precision lidar are: horizontal field of view angle greater than or equal to 70° and less than or equal to 90°, vertical field of view angle greater than or equal to 18° and less than or equal to 25°, angular resolution of (0.35° to 0.45°) × (0.35° to 0.45°), and ranging capability of more than 60 meters for 10% reflective targets.

[0097] In an optional embodiment of the present invention, if the second laser radar 22 is a low-precision laser radar, an anti-reflection coating may be provided in the signal transmission area of ​​the second laser radar 22 on the glass plate 1, where the incident angle of the second laser radar 22 is greater than 66°, to improve the signal penetration performance of the low-precision laser radar in large-angle areas. Preferably, for low-precision laser radars, an anti-reflection coating 3 may be provided in areas where the incident angle is greater than 70°.

[0098] In an optional embodiment of the present invention, an anti-reflection film may be provided on the overlapping area of ​​the large-angle area of ​​the first laser radar 21 and the second laser radar 22 on the glass plate 1 to further improve the ranging effect of the laser radar module 2.

[0099] In one embodiment of the present invention, Figure 5 and Figure 6 In the vehicle window assembly of the embodiment, when the first laser radar 21 is a high-precision laser radar and the second laser radar 22 is a medium-precision laser radar, the horizontal distance between the two first laser radars 21 is greater than or equal to 0.2m and less than or equal to 1.0m, and the horizontal distance between a first laser radar 21 and an adjacent second laser radar 22 is greater than or equal to 0.4m and less than or equal to 1.2m. Preferably, when the first laser radar 21 is a high-precision laser radar and the second laser radar 22 is a medium-precision laser radar, the horizontal distance between the two first laser radars 21 is greater than or equal to 0.4m and less than or equal to 0.8m, and the horizontal distance between a first laser radar 21 and an adjacent second laser radar 22 is greater than or equal to 0.3m and less than or equal to 0.8m.

[0100] In an optional embodiment of the present invention, Figure 8 In the coordinate system shown, when the first laser radar 21 is a high-precision laser radar and the second laser radar 22 is a medium-precision laser radar, Figure 5 and Figure 6 The positions of the components of the vehicle window assembly of the embodiment can be seen in Table 4 below.

[0101]

[0102]

[0103] Table 4

[0104] In one embodiment of the present invention, Figure 5 and Figure 6 In the vehicle window assembly of the embodiment, when the first laser radar 21 is a high-precision laser radar and the second laser radar 22 is a low-precision laser radar, the horizontal distance between the two first laser radars 21 is greater than or equal to 0.2m and less than or equal to 1.0m, and the horizontal distance between a first laser radar 21 and an adjacent second laser radar 22 is greater than or equal to 0.4m and less than or equal to 1.2m. Preferably, the horizontal distance between the two first laser radars 21 is greater than or equal to 0.4m and less than or equal to 0.8m, and the horizontal distance between a first laser radar 21 and an adjacent second laser radar 22 is greater than or equal to 0.4m and less than or equal to 1.0m.

[0105] In an optional embodiment of the present invention, Figure 8 In the coordinate system shown, when the first laser radar 21 is a high-precision laser radar and the second laser radar 22 is a low-precision laser radar, Figure 5 and Figure 6 The positions of the components of the vehicle window assembly of the embodiment can be seen in Table 5 below.

[0106]

[0107]

[0108] Table 5

[0109] Another aspect of the present invention provides a vehicle, comprising a vehicle body and the window assembly according to any one of the above embodiments, wherein the window assembly is mounted on the vehicle body.

[0110] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A vehicle window assembly, characterized in that: include: Glass panels and lidar modules; The laser radar module is arranged on the inner side of the glass plate; the laser radar module includes: at least one first laser radar arranged in the middle and at least one second laser radar arranged on the left and right sides; the horizontal field of view angle of the laser radar module is greater than or equal to 100°; An anti-reflection film is provided on at least a portion of a first target area on the glass plate, and the first target area includes: an area where the incident angle of the first laser radar is greater than 60° in a signal transmission area of ​​the first laser radar on the glass plate.

2. The vehicle window assembly according to claim 1, characterized in that: The horizontal field of view angle of the first laser radar is greater than or equal to 20° and less than or equal to 30°, and the horizontal field of view angle of the second laser radar is greater than or equal to 40° and less than or equal to 50°.

3. The vehicle window assembly according to claim 1, characterized in that: An anti-reflection film is provided on at least part of a second target area on the glass plate, and the second target area includes: an area where the incident angle of the second laser radar is greater than or equal to 62° in the signal transmission area of ​​the second laser radar on the glass plate.

4. The vehicle window assembly according to claim 1 or 3, characterized in that: The anti-reflection film can increase the transmittance by 4% to 7% at an incident angle of 66° to 72° for the near-infrared band of 905nm to 940nm or 1550nm.

5. The vehicle window assembly according to claim 1, characterized in that: The first laser radar is arranged in the middle, and the second laser radar is arranged on the left and right sides.

6. The vehicle window assembly according to claim 1, characterized in that: Two of the first laser radars are arranged vertically in the middle, and one of the second laser radars is arranged on the left and right sides.

7. The vehicle window assembly according to claim 1, characterized in that: Two of the first laser radars are arranged vertically in the middle, and two of the second laser radars are arranged vertically on the left and right sides.

8. The vehicle window assembly according to claim 1, wherein: Two horizontally arranged first laser radars are arranged in the middle, and one second laser radar is arranged on the left and right sides.

9. The vehicle window assembly according to claim 1, wherein: The first laser radar is a long-range laser radar, and the second laser radar is a blind spot-filling laser radar.

10. The vehicle window assembly according to claim 2, wherein: The vertical field of view angle of the first laser radar is greater than or equal to 6° and less than or equal to 9°, the angular resolution of the first laser radar is (0.08° to 0.12°) × (0.08° to 0.12°), and the ranging capability of the first laser radar is more than 200 meters for a 10% reflection target.

11. The vehicle window assembly according to claim 2, characterized in that: The vertical field of view angle of the second laser radar is greater than or equal to 10° and less than or equal to 15°, the angular resolution of the second laser radar is (0.18° to 0.22°) × (0.18° to 0.22°), and the ranging capability of the second laser radar is more than 100 meters for a 10% reflection target.

12. The vehicle window assembly according to claim 1, wherein: The first laser radar and the second laser radar are both pure solid-state laser radars.

13. The vehicle window assembly according to claim 5, characterized in that: In the horizontal direction, the distance between the first laser radar and the second laser radar is 0.4m-1.2m.

14. The vehicle window assembly according to claim 6, characterized in that In the vertical direction, the distance between the two first laser radars arranged one above the other is 0.2m-1.0m.

15. The vehicle window assembly according to claim 7, wherein: In the horizontal direction, the distance between the first laser radar and the second laser radar is 0.4m-1.2m; In the vertical direction, the distance between the two first laser radars arranged up and down is 0.2m-1.0m, and the distance between the two second laser radars arranged up and down is 0.2m-1.0m.

16. The vehicle window assembly according to claim 8, wherein: The distance between the two horizontally arranged first laser radars is 0.2m-1.0m, the distance between the first laser radar on the left and the second laser radar is 0.4m-1.2m, and the distance between the first laser radar on the right and the second laser radar is 0.4m-1.2m.

17. A vehicle window assembly, characterized in that: include: Glass panels and lidar modules; The laser radar module is arranged on the inner side of the glass plate; the laser radar module includes: at least one first laser radar arranged in the middle and at least one second laser radar arranged on the left and right sides; the horizontal field of view angle of the laser radar module is greater than or equal to 100°; An anti-reflection film is provided on at least part of a second target area on the glass plate, and the second target area includes: an area where the incident angle of the second laser radar is greater than or equal to 62° in the signal transmission area of ​​the second laser radar on the glass plate.

18. A vehicle window assembly, characterized in that: include: Glass panels and lidar modules; The laser radar module is arranged on the inner side of the glass plate; the laser radar module includes: at least one first laser radar arranged in the middle and at least one second laser radar arranged on the left and right sides; The horizontal field of view angle of the laser radar module is greater than or equal to 100°; An anti-reflection film is provided on at least a portion of the first area on the glass plate, the first area is the overlapping area of ​​the second area and the third area; the second area is the area where the incident angle of the first laser radar is greater than 60° in the signal transmission area of ​​the first laser radar on the glass plate; the third area is the area where the incident angle of the second laser radar is greater than or equal to 62° in the signal transmission area of ​​the second laser radar on the glass plate.

19. A vehicle window assembly, characterized in that: include: Glass panels and lidar modules; The laser radar module is arranged on the inner side of the glass plate; the laser radar module includes: at least one first laser radar arranged in the middle and at least one second laser radar arranged on the left and right sides; the horizontal field of view angle of the laser radar module is greater than or equal to 100°; An anti-reflection film is provided on at least a portion of the fourth area on the glass plate, and the fourth area is the overlapping area of ​​the fifth area and the sixth area; the fifth area is the projection area of ​​the field of view of the first laser radar on the glass plate; and the sixth area is the projection area of ​​the field of view of the second laser radar on the glass plate.

20. A vehicle, characterized in that: include: A vehicle body and a vehicle window assembly according to any one of claims 1 to 19, wherein the vehicle window assembly is mounted on the vehicle body.

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