Vehicle light system, vehicle light and vehicle
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- YINWANG INTELLIGENT TECHNOLOGIES CO LTD
- Filing Date
- 2024-12-04
- Publication Date
- 2026-08-07
AI Technical Summary
The high-beam shielding dark areas formed by the existing ADB system are relatively large, which affects the lighting of the road in front of the vehicle and poses safety hazards.
The light emitting modules with high and low pixels are used to accurately control the light coverage area of the emitting module through the headlight controller, narrow the dark area of the shading and expand the lighting range, and achieve high-precision high-beam shading and road lighting.
Reduce high beam dazzling, improve driver vision lighting, improve driving safety, expand lighting range and reduce unnecessary shading operations, and save computing resources.
Smart Images
Figure CN122535532A_ABST
Abstract
Description
Lighting systems, lights and vehicles
[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on December 25, 2023, with application number 202311808682.4, and priority to the Chinese patent application entitled “Vehicle Lighting System, Vehicle Light and Vehicle”, all contents of which are incorporated by reference into this application. Technical Field
[0002] The present application relates to the field of vehicle technology, and in particular to a vehicle lighting system, a vehicle lamp, and a vehicle. Background Art
[0003] When driving at night, high beams are often used to improve lighting. However, high beams can dazzle drivers on the opposite or same side of the vehicle, potentially leading to accidents and posing a safety hazard. To achieve both high beam illumination and dazzle prevention, adaptive driving beam (ADB) systems were developed.
[0004] The ADB system is an intelligent, anti-glare high-beam system. It uses a camera to detect other vehicles ahead of the vehicle. It then calculates and controls the dimming or extinguishing of corresponding light-emitting diodes (LEDs) within the high-beam system in real time. This creates a dark zone in areas where other vehicles are located, preventing glare for vehicles ahead. However, the dark zone currently created by the ADB system is relatively large, affecting the illumination of the road ahead and potentially leading to accidents. Summary of the Invention
[0005] The present application provides a headlight system, a headlight and a vehicle, which can reduce the dark area obscured by high beams, prevent glare and illuminate the road surface in front of the vehicle, thereby greatly improving driving safety.
[0006] In a first aspect, the present application provides a vehicle lighting system, the vehicle lighting system comprising a vehicle lamp and a vehicle lamp controller;
[0007] The vehicle lamp includes a first light-emitting module and a second light-emitting module; the first light-emitting module and the second light-emitting module are pixel-type light-emitting modules, and the pixels of the first light-emitting module are higher than the pixels of the second light-emitting module;
[0008] The aforementioned vehicle light controller is used to control the aforementioned first light-emitting module and the aforementioned second light-emitting module to emit light;
[0009] The pattern formed by the light emitted by the second light-emitting module includes a first area and a second area, wherein the first area is an area covered by the light of the second light-emitting module, and the second area is an area not covered by the light of the second light-emitting module;
[0010] The second area includes the target object, the area between the target object and the vehicle headlight in the second area belongs to the third area, and the light from the first light-emitting module covers the third area.
[0011] Optionally, the first light-emitting module is a light-emitting module implemented based on digital light processing DLP; and the second light-emitting module is a light-emitting module implemented based on multiple light-emitting diodes LED.
[0012] In the above scheme, through the cooperation of the high-pixel light-emitting module (the above-mentioned first light-emitting module) and the low-pixel light-emitting module (the above-mentioned second light-emitting module), the high-beam shielding dark area formed by the low-pixel light-emitting module is reduced, and high-precision high-beam shielding in front of the vehicle (such as the driver's main visual area) is achieved, which not only prevents the vehicle from dazzling the target objects in the same direction or opposite direction, but also illuminates the road in front of the vehicle, greatly improving driving safety.
[0013] In a possible implementation, the maximum illumination range of the second light-emitting module is greater than the maximum illumination range of the first light-emitting module.
[0014] In the above solution, the high-pixel first light-emitting module has a smaller illumination coverage area. Therefore, in this solution, the illumination coverage area can be expanded with the help of the low-pixel second light-emitting module. This not only expands the illumination range, but also increases the high-beam shielding coverage angle, allowing for more application scenarios and shielding more objects.
[0015] In one possible implementation, the vehicle light controller is used to control the first light-emitting module and the second light-emitting module to emit light, including:
[0016] The vehicle light controller is configured to receive position information of the target object and determine first pixel coordinates and second pixel coordinates based on the position information; the first pixel coordinates include coordinates of pixel units in the first light-emitting module for emitting light, and the second pixel coordinates include coordinates of pixel units in the second light-emitting module for emitting light;
[0017] The vehicle light controller is further configured to control the first light-emitting module to emit light based on the first pixel coordinates, and to control the second light-emitting module to emit light based on the second pixel coordinates.
[0018] In the above solution, the position of the dark area of high beam shielding can be accurately located through the position information of the target object, so that the lighting coverage area of the light-emitting module can be accurately controlled to achieve precise high beam shielding.
[0019] In one possible implementation, the vehicle light controller is configured to receive the position information of the target object and determine the first pixel coordinate and the second pixel coordinate based on the position information, including:
[0020] The aforementioned headlight controller is used to receive the aforementioned position information and the aforementioned target object type information, and determine the first pixel coordinate and the second pixel coordinate based on the aforementioned position information when the aforementioned type information indicates that the aforementioned target object belongs to a preset high beam obstruction object type.
[0021] In the above solution, the type of high beam shielding object is preset, and high beam shielding is performed only on objects that meet the preset type, thereby reducing unnecessary shielding operations, saving computing resources and reducing interference with road lighting.
[0022] In a possible implementation, the vehicle light controller includes a first controller and a second controller, the first controller is used to control the first light-emitting module to emit light, and the second controller is used to control the second light-emitting module to emit light.
[0023] In the above solution, the configuration of the headlight controller is diverse and flexible, reducing the limitation of hardware configuration.
[0024] In a possible implementation, the vehicle lighting system further includes a sensing device, and the sensing device is used to sense the position and / or type of the target object.
[0025] In the above solution, the position information and / or type information of the target object can be accurately obtained through the sensing device, thereby achieving accurate high beam shielding.
[0026] In a possible implementation, the third area also includes areas on both sides of the target object within the second area.
[0027] In the above solution, the area covered by the illumination of the first light-emitting module also includes areas on both sides of the target object, which can further achieve effective lighting of the road surface and improve driving safety.
[0028] In a second aspect, the present application provides a vehicle lamp, comprising a first light-emitting module and a second light-emitting module;
[0029] The first light-emitting module and the second light-emitting module are pixel-type light-emitting modules, and the pixels of the first light-emitting module are higher than the pixels of the second light-emitting module;
[0030] The first light-emitting module and the second light-emitting module are used to emit light to form a pattern;
[0031] The pattern formed by the light emitted by the second light-emitting module includes a first area and a second area, wherein the first area is an area covered by the light of the second light-emitting module, and the second area is an area not covered by the light of the second light-emitting module;
[0032] The second area includes a target object, the second area includes a third area between the target object and the vehicle light, and the light from the first light-emitting module covers the third area.
[0033] In a possible implementation, the illumination range of the second light-emitting module is larger than the illumination range of the first light-emitting module.
[0034] In a third aspect, the present application provides a vehicle, which includes the vehicle lighting system as described in any one of the first aspects above, or the vehicle includes the vehicle lighting as described in any one of the second aspects above.
[0035] The beneficial effects of the second and third aspects mentioned above can be referred to the description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] 1 to 11 are schematic structural diagrams of a vehicle lighting system provided by an embodiment of the present application;
[0037] 12 to 16 are schematic diagrams of high beam shielding effects provided by embodiments of the present application;
[0038] FIG17 is a flow chart of a control method provided in an embodiment of the present application. DETAILED DESCRIPTION
[0039] In the embodiment of the present application, "multiple" refers to two or more. In the embodiment of the present application, "and / or" is used to describe the association relationship of associated objects, indicating three relationships that can exist independently. For example, A and / or B can be expressed as follows: A exists alone, B exists alone, or A and B exist at the same time. The description methods such as "at least one of a1, a2, ... and an" used in the embodiment of the present application include the situation where any one of a1, a2, ... and an exists alone, and also include any combination of any multiple of a1, a2, ... and an, each of which can exist alone; for example, the description method of "at least one of a, b and c" includes the situation where a is alone, b is alone, c is alone, a and b combination, a and c combination, b and c combination, or abc combination.
[0040] In this application, the terms "first," "second," and the like are used to distinguish between identical or similar items having substantially the same function or effect. It should be understood that "first," "second," and "nth" do not have a logical or temporal dependency, nor do they limit the quantity or order of execution. It should also be understood that although the following description uses the terms "first," "second," and the like to describe various elements, these elements should not be limited by these terms. These terms are simply used to distinguish one element from another.
[0041] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between the various embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.
[0042] In order to reduce the dark area obscured by high beams, prevent glare, and illuminate the road ahead of the vehicle to improve driving safety, an embodiment of the present application provides a headlight system.
[0043] In one possible implementation, the vehicle lighting system provided by the embodiment of the present application can be shown in FIG1 . The vehicle lighting system 100 shown in FIG1 may include a vehicle lighting 110 and a vehicle lighting controller 120 . The vehicle lighting 110 may include a first light emitting module 1101 and a second light emitting module 1102 .
[0044] For example, the vehicle light 110 may be a high beam light of the vehicle.
[0045] Exemplarily, the first light-emitting module 1101 and the second light-emitting module 1102 are pixel-type light-emitting modules, and the pixels of the first light-emitting module 1101 are higher than the pixels of the second light-emitting module 1102 .
[0046] The above-mentioned pixel-type light-emitting module means that the light-emitting module can be composed of multiple units for emitting light, and the units for emitting light can be simply referred to as pixel units. Each pixel unit can be individually controlled to be turned on or off. When a pixel unit is turned on, it means that the pixel unit is controlled to emit light. When a pixel unit is turned off, it means that the pixel unit is controlled so that it does not emit light. By controlling the turning on or off of each pixel unit in the multiple pixel units, the light emitted by the light-emitting module can form various patterns and shapes.
[0047] The number of pixels of the first light-emitting module 1101 is higher than that of the second light-emitting module 1102, indicating that the pixel density of the first light-emitting module 1101 is greater than that of the second light-emitting module 1102. For example, the first light-emitting module 1101 can achieve finer-grained regional lighting control.
[0048] Exemplarily, the above-mentioned first light-emitting module 1101 can be, for example, a light-emitting module based on digital light processing (DLP). The light-emitting module can include a digital micromirror device (DMD). Exemplarily, a matrix composed of a large number of small lenses is provided on the DMD, and each small lens represents a pixel unit. By controlling the angle of the small lens, light from a light source (laser or LED lamp, etc.) can be emitted to the outside (for example, emitted from a car light), which indicates that the pixel unit is turned on. Alternatively, by controlling the angle of the small lens, the light can be absorbed and not emitted to the outside, which indicates that the pixel unit is turned off. Exemplarily, millions or even more pixel units can be provided on the DMD, so that light-emitting control at the million-pixel level can be achieved.
[0049] Alternatively, for example, the first light-emitting module 1101 may be a light-emitting module based on reflective liquid crystal projection technology. The light-emitting module may include a liquid crystal on silicon (LCoS) chip. An LCoS chip may integrate millions of pixel electrodes (i.e., pixel units). By controlling these pixel units, light emission control at the million-pixel level can be achieved.
[0050] It should be understood that the above description of the first light-emitting module 1101 is merely illustrative and does not constitute a limitation on the embodiments of the present application. In a specific implementation, the first light-emitting module 1101 may alternatively be another light-emitting module capable of megapixel-level light control, or may alternatively be another light-emitting module having a higher pixel count than the second light-emitting module 1102. This embodiment of the present application does not impose any limitations on this.
[0051] By way of example, the second light-emitting module 1102 may be a light-emitting module comprising a plurality of LEDs. Each LED represents a pixel unit. By controlling the brightness (on) or darkness (off) of each of the plurality of LEDs, the light emitted by the second light-emitting module 1102 may form various patterns. By way of example, the plurality of LEDs may be any number between 20 and 90 LEDs. For example, the second light-emitting module 1102 may include an LED matrix consisting of 84 LEDs. The embodiment of the present application does not limit the number of LEDs.
[0052] In one possible implementation, the maximum illumination range of the second light-emitting module 1102 is greater than the maximum illumination range of the first light-emitting module 1101. For example, assuming that the maximum illumination range of the first light-emitting module 1101 is within the range covered by the first field of view (FOV) in front of the vehicle, and assuming that the maximum illumination range of the second light-emitting module 1102 is within the range covered by the second field of view in front of the vehicle. Then the second field of view is greater than the first field of view. For example, the angle of the first field of view is between 10° and 14°, and the angle of the second field of view is between 30° and 40°. For example, taking the first field of view angle of 14° as an example, the maximum illumination range of the first light-emitting module 1101 is within the range of 7° to the left and right in front of the vehicle. Taking the second field of view angle of 40° as an example, the maximum illumination range of the second light-emitting module 1102 is within the range of 20° to the left and right in front of the vehicle. It is understood that the description of the first and second viewing angles herein is merely illustrative and does not limit the embodiments of the present application. In specific implementations, the first and second viewing angles may also have other values, which are not limited in the embodiments of the present application.
[0053] In one possible implementation, the maximum illumination range of the second light-emitting module 1102 and the maximum illumination range of the first light-emitting module 1101 can cover tens to hundreds of meters in front of the vehicle. The specific coverage length is designed according to actual application requirements and is not limited in this embodiment of the application.
[0054] The vehicle light controller 120 can be used to control the first light emitting module 1101 and the second light emitting module 1102 to emit light to form corresponding patterns. The specific control logic can be exemplified in the following description and will not be described in detail here.
[0055] For example, the headlight controller 120 may be integrated into a vehicle domain controller, such as a vehicle control unit (VCU), a hybrid control unit (HCU), a vehicle domain controller (VDC), or an intelligent driving controller. Alternatively, the headlight controller 120 may be a separate controller independent of these domain controllers. This is not a limitation in the present embodiment.
[0056] In one possible implementation, for example, see FIG2 , the vehicle light 110 may include a first vehicle light 110_1 and a second vehicle light 110_2 . For example, one of the first vehicle light 110_1 and the second vehicle light 110_2 may be a left high beam of the vehicle, and the other may be a right high beam of the vehicle.
[0057] For example, the first headlight 110_1 may include a first light-emitting module 11011 and a second light-emitting module 11021. The second headlight 110_2 may include a first light-emitting module 11012 and a second light-emitting module 11022. The first light-emitting module 11011 and the first light-emitting module 11012 can be described with reference to the description of the first light-emitting module 1101, and are not repeated here. The second light-emitting module 11021 and the second light-emitting module 11022 can be described with reference to the description of the second light-emitting module 1102, and are not repeated here.
[0058] For example, the vehicle light controller 120 shown in FIG. 2 may be used to control the first light-emitting module 11011 , the second light-emitting module 11021 , the first light-emitting module 11012 , and the second light-emitting module 11022 to emit light to form corresponding patterns.
[0059] For example, in another possible implementation, the first headlight 110_1 may include only the first light-emitting module 11011. The second headlight 110_2 may include only the first light-emitting module 11012. The headlight 110 may further include a third headlight including the second light-emitting module 1102.
[0060] In one possible implementation, as shown in FIG3 , the vehicle light controller 120 may include a first controller 1201 and a second controller 1202 . For example, the first controller 1201 and the second controller 1202 may communicate with each other. The first controller 1201 may be used to control the first light-emitting module 1101 to emit light, and the second controller 1202 may be used to control the second light-emitting module 1102 to emit light.
[0061] In one possible implementation, for example, see FIG4 . In the vehicle lighting system 100 shown in FIG4 , the first controller 1201 can be used to control the illumination of high-pixel light-emitting modules, such as the first light-emitting module 11011 and the first light-emitting module 11012. The second controller 1202 can be used to control the illumination of low-pixel light-emitting modules, such as the second light-emitting module 11021 and the second light-emitting module 11022.
[0062] In one possible implementation, for example, see FIG5 . In the vehicle lamp system 100 shown in FIG5 , the first controller 1201 can be used to control the lighting modules of the first vehicle lamp 110_1, for example, to control the lighting of the first lighting module 11011 and the second lighting module 11021. The second controller 1202 can be used to control the lighting modules of the second vehicle lamp 110_2, for example, to control the lighting of the first lighting module 11012 and the second lighting module 11022.
[0063] In one possible implementation, as exemplified in FIG6 , the vehicle lamp system 100 may further include a sensing module 130. For example, the sensing module 130 may be configured to sense the location and / or type of objects surrounding the vehicle. The sensed location and / or type of the object may then be transmitted to the vehicle lamp controller 120, so that the vehicle lamp controller 120 may control the illumination of the light-emitting module within the vehicle lamp based on the location and / or type of the object.
[0064] Exemplarily, the types of the above-mentioned objects may include, for example, various types of vehicles, pedestrians or animals, etc., and the embodiments of the present application are not limited to this.
[0065] Exemplarily, the perception module 130 may include a camera, a radar (such as a lidar, a micro radar or a millimeter wave radar, etc.), or a combination of a camera and a radar.
[0066] In one possible implementation, the above-mentioned perception module 130 can be, for example, a perception module in a vehicle that serves an advanced driving assistance system (ADAS). After the perception module obtains the position and / or type of the object, it can be sent by the ADAS controller to the above-mentioned headlight controller 120. For example, the ADAS controller can first send the position and / or type information to the vehicle's vehicle integration unit (VIU), and then the VIU forwards it to the headlight controller 120. For example, as shown in Figure 7, the VIU 140 here is equivalent to the gateway of the vehicle, which is used to forward various information in the vehicle. For example, the VIU can also be called a vehicle intranet unit. It can be understood that these names are only examples and do not constitute a limitation to the embodiments of the present application.
[0067] In one possible implementation, the sensing module 130 may be, for example, a sensing module disposed within a headlight. For example, in conjunction with the headlight system 100 shown in FIG. 5 , sensing modules may be disposed within both the first headlight 110_1 and the second headlight 110_2. For example, see FIG. 8 . The sensing module 130 may include a first sensing module 1301 and a second sensing module 1302. The first sensing module 1301 may be disposed within the first headlight 110_1. The second sensing module 1302 may be disposed within the second headlight 110_2. Since the first controller 1201 is used to control the illumination of the light-emitting module of the first headlight 110_1, after acquiring the location and / or type information of an object, the first sensing module 1301 may transmit this location and / or type information to the first controller 1201. This allows the first controller 1201 to control the illumination of the light-emitting module within the first headlight 110_1 based on the location and / or type of the object.
[0068] Similarly, since the second controller 1202 is used to control the lighting module of the second headlight 110_2, after the second sensing module 1302 obtains the position and / or type information of the object, it can send the position and / or type information to the second controller 1202. This allows the second controller 1202 to control the lighting module in the second headlight 110_2 based on the position and / or type of the object.
[0069] For example, in the vehicle lighting system 100 shown in FIG8 , if both the first vehicle lighting 110_1 and the second vehicle lighting 110_2 emit light, to ensure that the light patterns emitted by the two vehicle lightings are consistent, the first controller 1201 and the second controller 1202 may synchronize the received object's position and / or type information. For example, the object's position and / or type information sent to the controller by the sensing module carries a timestamp, and the first controller 1201 and the second controller 1202 may synchronize and align based on the timestamp of the received position and / or type information. For example, the first controller 1201 and the second controller 1202 may communicate and negotiate to determine the timestamp of the position and / or type information to use. The first controller 1201 and the second controller 1202 then each control the lighting of the corresponding light-emitting module based on the position and / or type information corresponding to the determined timestamp. It should be understood that the information synchronization described herein is merely an example, and embodiments of the present application may employ any synchronization method without limitation.
[0070] Alternatively, for example, a sensing module 130 may be provided in one of the first headlight 110_1 and the second headlight 110_2. For example, see FIG9 , which is still described in conjunction with the headlight system 100 shown in FIG5 . After acquiring the object's location and / or type information, the sensing module 130 may transmit this location and / or type information to the first controller 1201 and the second controller 1202. This allows the first controller 1201 to control the lighting of the light-emitting module in the first headlight 110_1 based on the object's location and / or type, and the second controller 1202 to control the lighting of the light-emitting module in the second headlight 110_2 based on the object's location and / or type. For example, as described above, to ensure that the light patterns emitted by the two headslights are consistent, the first controller 1201 and the second controller 1202 may synchronize the received object location and / or type information. For details, please refer to the above exemplary description and will not be repeated here.
[0071] Alternatively, for example, in the implementation scheme described above where the sensing module 130 is disposed in one of the first headlight 110_1 and the second headlight 110_2, after the sensing module 130 obtains the position and / or type information of the object, it may transmit the position and / or type information to one of the first controller 1201 and the second controller 1202. For example, assuming that the sensing module 130 is disposed in the first headlight 110_1, the sensing module 130 may transmit the obtained position and / or type information of the object to the first controller 1201, as shown in FIG10 . Alternatively, assuming that the sensing module 130 is disposed in the second headlight 110_2, the sensing module 130 may transmit the obtained position and / or type information of the object to the second controller 1202, as shown in FIG11 . For example, in one possible implementation scheme, using FIG10 as an example, after the first controller 1201 obtains the position and / or type information of the object, it may transmit the position and / or type information to the second controller 1202. Optionally, in this implementation, the second controller 1202 controls the lighting module within the second headlight 110_2 based on the position and / or type information received from the first controller 1201. The first controller 1201 also controls the lighting module within the second headlight 110_2 based on the position and / or type information sent to the second controller 1202. This eliminates the need for additional synchronization processing. The same applies to Figure 11 and will not be further described.
[0072] It is understandable that although Figures 8 to 11 are introduced with reference to the vehicle lighting system 100 shown in Figure 5, the configuration of the sensing module 130 can be similarly applied to the vehicle lighting system 100 shown in Figure 3 or 4, and will not be further described here.
[0073] In a possible implementation manner, the vehicle lighting system 100 provided in the embodiment of the present application belongs to an ADB system.
[0074] It should be understood that the vehicle lighting system 100 shown in FIG. 1 to FIG. 11 is merely an example and does not constitute a limitation to the embodiments of the present application.
[0075] For example, based on the vehicle lighting system 100 described above, by coordinating high- and low-pixel light-emitting modules, the dark area of high-beam shielding formed by the low-pixel light-emitting modules is reduced, and high-precision high-beam shielding in front of the vehicle (the driver's main visual area) is achieved, which not only prevents the vehicle from dazzling the target objects in the same or opposite directions, but also achieves the effect of illuminating the road surface in front of the vehicle. For example, the target objects may include various types of vehicles (including small, medium and large passenger cars, trucks, sanitation vehicles, trailers, bicycles, motorcycles and tricycles, etc.), pedestrians or animals, etc., and the embodiments of the present application do not limit this. For ease of understanding, the following exemplary introduction is made in conjunction with Figures 12 to 16.
[0076] Exemplarily, Figures 12 to 16 are schematic diagrams showing the effects of high beam control achieved after adopting the implementation scheme of the present application. Figures 12 and 13 show an example in which the target object is a small passenger car. Figures 14 and 15 show an example in which the target object is a motorcycle. Among them, the target objects shown in Figures 12 and 14 are moving in opposite directions to the vehicle (i.e., the vehicle including the above-mentioned headlight system 100). The target objects shown in Figures 13 and 15 are moving in the same direction as the vehicle. The target objects shown in Figure 16 exemplarily show two (target object 1 and target object 2). Among them, target object 1 is moving in opposite directions to the vehicle, and target object 2 is moving in the same direction as the vehicle.
[0077] In Figures 12 to 16, the pattern formed by the light emitted by the second light-emitting module of the vehicle includes a first area and a second area. The second light-emitting module can be, for example, at least one of the second light-emitting module 11021 and the second light-emitting module 11022 mentioned above. The first area is, for example, the area in front of the front of the vehicle surrounded by dotted lines ① and ② in Figures 12 to 16, excluding the second area. The second area is, for example, the area in front of the front of the vehicle surrounded by dotted lines ③ and ④ in Figures 12 to 16. The first area is the area covered by the light of the second light-emitting module. The second area is the area not covered by the light of the second light-emitting module. It can be understood that the above-mentioned first area and second area are within the maximum illumination range of the second light-emitting module.
[0078] Furthermore, it can be seen that the target object is located in the aforementioned second area. The area within the second area between the target object and the vehicle's headlights constitutes the third area. Light from the vehicle's first light-emitting module covers this third area. This first light-emitting module can, for example, be at least one of the aforementioned first light-emitting module 11011 and first light-emitting module 11012. Optionally, the third area can also include areas on either side of the target object within the second area, meaning that the light from the first light-emitting module can cover areas on either side of the target object within the second area. Since neither the first nor the second light-emitting module illuminates the target object, a high-beam dark area is formed at the location of the target object. For example, this high-beam dark area can encompass the target object itself and an area equal to the width of the target vehicle plus a first length. This first length can, for example, be between 1 and 2 meters. This allows for high-precision high-beam shielding, effectively preventing high-beam glare. Furthermore, since the third area is covered by light from the first light-emitting module, the road surface in front of the vehicle is effectively illuminated. Combined with the range of light coverage of the second light-emitting module, it provides the vehicle with good lighting of the surrounding environment, greatly improving driving safety.
[0079] It is understood that the effects of high-beam control shown in Figures 12 to 16 are merely illustrative and do not constitute a limitation on the embodiments of the present application. Furthermore, the above examples primarily utilize one or two target objects. In specific implementations, the present application's solution can also be applied to scenarios where high-beam blocking is applied to more target objects, which will not be detailed here.
[0080] In a specific implementation, the effect of the high beam control described above is achieved by the headlight controller 120 controlling the light emitting module in the headlight to emit light based on the position and / or type of the target object. The following is an exemplary description of the control implementation process.
[0081] In a possible implementation, for example, see FIG17 , which exemplarily shows a possible high-beam control process flow diagram. For example, each step of the high-beam control process shown in FIG17 can be executed by the vehicle light controller 120 .
[0082] In Figure 17 , the adaptive high-beam control state machine can be used to determine whether to activate a light-emitting module, for example, whether to turn on the vehicle's high beams. For example, the adaptive high-beam control state machine can determine this based on the vehicle's speed and / or ambient brightness. For example, if the vehicle's speed reaches a preset speed threshold and / or the ambient brightness is less than a preset brightness threshold, the adaptive high-beam control state machine can send an activation signal to activate the first and second light-emitting modules.
[0083] After the first light-emitting module and the second light-emitting module are activated, the headlight controller can receive the position information of the target object. For example, the headlight controller can periodically receive the position information of the target object to achieve tracking prediction of the target object. After the position information of the target object is predicted, coordinate conversion can be performed based on the predicted position information. For example, the predicted position information can be represented by a preset coordinate system. The preset coordinate system can be, for example, the vehicle's own coordinate system or the world coordinate system. There is a preset correspondence between the preset coordinate system and the pixel coordinate system of the first light-emitting module and the pixel coordinate system of the second light-emitting module. The first pixel coordinate and the second pixel coordinate can be obtained by coordinate conversion. The first pixel coordinate includes the coordinates of the pixel unit for emitting light in the first light-emitting module, and the second pixel coordinate includes the coordinates of the pixel unit for emitting light in the second light-emitting module.
[0084] For example, in one possible implementation, before performing the coordinate conversion between the preset coordinate system and the pixel coordinate system of the second light-emitting module, delay control may be performed to ensure that the two light-emitting modules emit light simultaneously.
[0085] After obtaining the first pixel coordinates, the headlight controller can construct the high-beam obstruction dark area based on the first pixel coordinates. Specifically, it identifies the pixel units in the first light-emitting module that are illuminated by the high-beam obstruction dark area. The controller then controls these pixel units that are illuminated by the high-beam obstruction dark area to be turned off, and controls some or all of the pixel units in the first light-emitting module other than these pixel units to be turned on, so that the illumination of the first light-emitting module covers the third area.
[0086] After obtaining the second pixel coordinates, the vehicle light controller can control the corresponding pixel units in the second light-emitting module to turn on based on the second pixel coordinates and control the remaining pixel units to turn off, so that the pattern formed by the second light-emitting module includes the first area and the second area.
[0087] For example, in another possible implementation, the first pixel coordinates may include the coordinates of the pixel units in the first light-emitting module that are to be turned off, and the second pixel coordinates may include the coordinates of the pixel units in the second light-emitting module that are to be turned off. Once the pixel units are known to be turned off, the remaining pixel units can be controlled to turn on. This can also achieve the high beam control effect described above.
[0088] It is understood that the high beam control process shown in FIG17 is merely an illustration and does not limit the embodiments of the present application. In specific implementations, other control processes may be used to achieve the high beam control effect described above, and the embodiments of the present application do not limit this.
[0089] In another possible implementation, after the first light-emitting module and the second light-emitting module are activated, the headlight controller may also receive the type information of the target object. Only when the type information indicates that the target object belongs to a preset high-beam obstruction object type, the headlight controller will continue to perform subsequent high-beam obstruction operations such as tracking prediction. If the type information indicates that the target object does not belong to the preset high-beam obstruction object type, the headlight controller will not perform subsequent high-beam obstruction operations. Exemplarily, the preset high-beam obstruction object type may include various types of vehicles, pedestrians, animals, etc., and the embodiments of the present application do not limit this.
[0090] An embodiment of the present application further provides a vehicle, which may include the vehicle lighting system 100 in any of the possible implementations described above.
[0091] It should be understood that in the various embodiments of the present application, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
[0092] It will also be understood that the term “comprise” (also known as “includes,” “including,” “comprises,” and / or “comprising”) when used in this specification specifies the presence of stated features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.
[0093] It should also be understood that references throughout this specification to "one embodiment," "an embodiment," or "one possible implementation" mean that specific features, structures, or characteristics associated with that embodiment or implementation are included in at least one embodiment of the present application. Therefore, the appearance of "in one embodiment," "in an embodiment," or "one possible implementation" throughout this specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A vehicle lamp system, characterized in that, The headlight system includes a headlight and a headlight controller; The headlight includes a first light-emitting module and a second light-emitting module; the first light-emitting module and the second light-emitting module are pixelated light-emitting modules, and the pixels of the first light-emitting module are higher than those of the second light-emitting module; The headlight controller is used to control the first light-emitting module and the second light-emitting module to emit light; The pattern formed by the second light-emitting module emitting light includes a first area and a second area. The first area is the area covered by the light of the second light-emitting module, and the second area is the area not covered by the light of the second light-emitting module; A target object is included in the second area, and the area between the target object and the headlight in the second area belongs to a third area, and the light of the first light-emitting module covers the third area.
2. The headlamp system according to claim 1, wherein The maximum light range of the second light-emitting module is greater than the maximum light range of the first light-emitting module.
3. The headlight system according to claim 1 or 2, characterized in that, The headlight controller is used to control the first light-emitting module and the second light-emitting module to emit light, including: The headlight controller is used to receive the position information of the target object and determine a first pixel coordinate and a second pixel coordinate based on the position information; the first pixel coordinate includes the coordinates of the pixel units in the first light-emitting module that are used to emit light, and the second pixel coordinate includes the coordinates of the pixel units in the second light-emitting module that are used to emit light; The headlight controller is also used to control the first light-emitting module to emit light based on the first pixel coordinate and control the second light-emitting module to emit light based on the second pixel coordinate.
4. The headlight system according to claim 3, characterized in that, The headlight controller is used to receive the position information of the target object and determine a first pixel coordinate and a second pixel coordinate based on the position information, including: The headlight controller is used to receive the position information and the type information of the target object, and when the type information indicates that the target object belongs to a preset type of high-beam shielding object, determine the first pixel coordinate and the second pixel coordinate based on the position information.
5. The vehicle lamp system according to any one of claims 1-4, characterized in that, The headlight controller includes a first controller and a second controller. The first controller is used to control the first light-emitting module to emit light, and the second controller is used to control the second light-emitting module to emit light.
6. The headlight system according to any one of claims 1-5, characterized in that, The first light-emitting module is a light-emitting module implemented based on digital light processing (DLP); the second light-emitting module is a light-emitting module implemented based on multiple light-emitting diodes (LEDs).
7. The vehicle headlamp system according to any one of claims 1-6, characterized in that, The headlight system further includes a sensing device, and the sensing device is used to sense the position and / or type of the target object.
8. The headlight system according to any one of claims 1-7, characterized in that The third area further includes the areas on both sides of the target object in the second area.
9. A vehicle lamp, characterized in that, The headlight includes a first light-emitting module and a second light-emitting module; The first light-emitting module and the second light-emitting module are pixelated light-emitting modules, and the pixels of the first light-emitting module are higher than those of the second light-emitting module; The first light-emitting module and the second light-emitting module are used to emit light to form a pattern; The pattern formed by the second light-emitting module emitting light includes a first area and a second area. The first area is the area covered by the light of the second light-emitting module, and the second area is the area not covered by the light of the second light-emitting module; The second area includes a target object, and a third area is included between the target object and the vehicle lamp within the second area, and the illumination of the first light-emitting module covers the third area.
10. The vehicle lamp according to claim 9, characterized in that, The illumination range of the second light-emitting module is greater than that of the first light-emitting module.
11. A vehicle, the vehicle includes the vehicle lamp system according to any one of claims 1-8, or the vehicle includes the vehicle lamp according to claim 9 or 10.