Vehicle exterior decorative light control system, vehicle welcome control method and vehicle

Abstract

The present application relates to a vehicle light control system, and provides a vehicle exterior decorative light control system, comprising a digital light control unit electrically connected to an exterior decorative light unit. The digital light control unit comprises a light editing module and a digital light processing module; the light editing module provides a visual light editing interface corresponding to a vehicle styling arrangement, and exterior decorative light information that can be customized is formed in the visual light editing interface, the exterior decorative light information comprising projection headlamp brightness information, interactive signal lamp pixel information and surrounding projection lamp brightness information; the digital light processing module is in communication connection with the light editing module, so as to convert the exterior decorative light information into a lighting description file and transmit the lighting description file to the exterior decorative light unit for display control. Therefore, the present application achieves unified control of exterior decorative lamps, thus ensuring precise synchronization during exterior decorative light display; and the present application supports customized lamp light effects, thus achieving fully personalized welcome effects. The present application further provides a vehicle welcome control method and a vehicle.

Description

Vehicle exterior lighting control system, vehicle welcome control method and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of Chinese patent application 202311367658.1 filed on October 22, 2023, the contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to a vehicle lighting control system, and more particularly, to a vehicle exterior lighting control system, and also to a vehicle welcome control method and a vehicle. Background Art

[0004] With the continuous upgrading and iteration of automobile intelligent system software and hardware configurations, car users' demands for vehicles' portability, comfort and practicality, as well as their emotional needs and demands for human-vehicle interaction scenarios are becoming increasingly rich and innovative. The demands for vehicle welcome lighting effects, human-vehicle interaction scene experience, and lighting information prompts during driving are also constantly being updated and created.

[0005] In existing technologies, vehicle welcome lighting effects are achieved through intelligent projection lighting systems (IPL), interactive signal display systems (ISD), and surround interactive dynamic projection systems (SIDP). The intelligent projection lighting system, based on a pixelated display automotive lighting system, projects some concrete graphic information on the road surface through beam control to improve nighttime driving safety and enhance the vehicle's human-machine interaction experience. These systems include DLP (Digital Light Processing) and HD (High Definition) projection headlights. The interactive signal display system uses a granular light-emitting display matrix. Through graphical control of the lighting control unit, the display matrix is ​​graphically and semantically expressed, thereby enabling information transmission to users, pedestrians, and other road users, creating a human-vehicle interaction experience. The surround interactive dynamic projection system is a near-field full-color interactive system based on pixelated display. Through graphical display, it enables an ultra-near-field interactive experience with the vehicle's surroundings. The projection unit is typically installed below the left or right exterior mirrors or under the side skirts.

[0006] However, the vehicle welcome lighting effects implemented by the aforementioned existing technologies are all fixed, pre-set by the manufacturer. Users see the same welcome lighting every time they wake up and unlock the vehicle. Furthermore, the current welcome lighting solutions are fragmented across various exterior lighting products, preventing full functional linkage. For example, during the welcome process, the smart projection headlights play a fixed animation sequence, and the interactive signal lights also play a fixed animation sequence. Signal synchronization is also a simple control command that drives the simultaneous activation of different execution units, failing to achieve precise synchronization during playback.

[0007] Summary of the Invention

[0008] The technical problem to be solved in the first aspect of this application is to provide a vehicle exterior lighting control system, which realizes unified control of exterior lighting, ensures precise synchronization during the exterior lighting display process, and supports customization of lighting effects, and the welcoming effect is full of personalization.

[0009] The technical problem to be solved in the second aspect of this application is to provide a vehicle welcome control method, which can uniformly control the exterior lights, achieve precise synchronization during the exterior light display process, and support customization of the lighting effects, so that the welcome effect is fully personalized.

[0010] The technical problem to be solved in the third aspect of the present application is to provide a vehicle whose exterior lights can be uniformly controlled and can be accurately synchronized during the exterior light display process, and whose lighting effects can be customized to provide a highly personalized welcoming effect.

[0011] In order to solve the above technical problems, the first aspect of the present application provides a vehicle exterior lighting control system, comprising a digital lighting control unit electrically connected to an exterior lighting unit, wherein the exterior lighting unit includes an intelligent projection lighting module, an interactive signal light module, and a surround interactive dynamic projection module, and the digital lighting control unit includes a lighting editing module and a digital lighting processing module;

[0012] The lighting editing module provides a visual lighting editing interface corresponding to the vehicle styling layout, wherein the visual lighting editing interface forms customizable exterior lighting information, including projection headlight brightness information, interactive signal light pixel information, and surround projection light brightness information;

[0013] The digital lighting processing module is communicatively connected to the lighting editing module to convert the exterior lighting information into a lighting description file, and transmit the lighting description file to the exterior lighting unit for display control.

[0014] As a specific implementation, the digital light processing module transmits the projection headlight brightness information to the intelligent projection lighting module, transmits the interactive signal light pixel information to the interactive signal light module, and transmits the surround projection light brightness information to the surround interactive dynamic projection module.

[0015] As a specific embodiment, the lighting editing module is further provided with a video source unit for customizing the projection image, and the digital lighting processing module can transmit the customized projection image to the intelligent projection lighting module and / or the surround interactive dynamic projection module respectively.

[0016] A second aspect of the present application provides a vehicle welcome control method, wherein a vehicle is provided with a vehicle exterior lighting control system as described in any one of the above technical solutions, the method comprising:

[0017] Detect target signals within the preset range of the vehicle;

[0018] In response to detecting the target signal within a preset range, the exterior lighting unit is displayed and controlled according to the customized exterior lighting information.

[0019] In a specific embodiment, the digital lighting control unit is provided with a storage module, the storage module storing multiple sets of exterior lighting information, the multiple sets of exterior lighting information being customized by different users, and in response to detecting the target signal within a preset range, controlling the display of the exterior lighting unit according to the customized exterior lighting information includes:

[0020] In response to detecting the target signal within a preset range, confirming user information corresponding to the target signal;

[0021] Acquire the corresponding exterior lighting information according to the user information;

[0022] Display control of the exterior lighting unit is performed according to the exterior lighting information.

[0023] As a specific implementation, the user's personalized information is obtained according to the user information, and based on the personalized information, the projection image of the intelligent projection lighting module and / or the surround interactive dynamic projection module is controlled to display personalized elements.

[0024] In a specific embodiment, different welcome stage modes are set according to the distance range between the target signal and the vehicle, and the display control of the exterior light unit is different in the different welcome stage modes. In response to detecting the target signal within a preset range, controlling the display of the exterior light unit according to the customized exterior light information includes:

[0025] In response to detecting the target signal within a preset range, obtaining current distance information between the target signal and the vehicle;

[0026] Determining a corresponding welcoming phase mode according to the target signal and vehicle distance information;

[0027] The exterior lighting unit is displayed and controlled according to the exterior lighting information customized in the welcome stage mode.

[0028] As a specific implementation, the method further includes:

[0029] In response to detecting the target signal within a preset range, acquiring an environmental signal around the vehicle in real time, the environmental signal being collected from a vehicle body sensor;

[0030] Based on the environmental signal obtained in real time, determining whether the vehicle's surrounding environment meets the projection site conditions;

[0031] In response to the vehicle surrounding environment meeting the projection site conditions, the exterior lighting unit is displayed and controlled according to the customized exterior lighting information; or, in response to the vehicle surrounding environment not meeting the projection site conditions, the exterior lighting unit is displayed and controlled according to the preset scene definition.

[0032] As a specific implementation, the method further includes:

[0033] In response to detecting the target signal within a preset range, obtaining current weather information and / or date information;

[0034] According to the current weather information and / or date information, the projection image of the intelligent projection lighting module and / or the surround interactive dynamic projection module is controlled to display weather elements or date elements.

[0035] A third aspect of the present application provides a vehicle, comprising the vehicle exterior lighting control system described in any one of the above technical solutions, and executing the vehicle welcome control method described in any one of the above technical solutions.

[0036] Through the above solution, the beneficial effects of this application are as follows:

[0037] The vehicle exterior lighting control system of the present application customizes the exterior lighting information through a visual lighting editing interface, so that the exterior lights (projection headlights, interactive signal lights and surround projection lights) can be adjusted, and the lighting effects are diverse and flexible to meet personalized needs; at the same time, the exterior lighting information is described through a visual lighting description file, and there is no need for the execution units of each exterior light to provide synchronous feedback signals. The lighting description file can be used to uniformly control the lights of the entire vehicle, thereby achieving precise synchronization during the exterior lighting display process.

[0038] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the following detailed description, they are used to explain the present application but do not constitute a limitation of the present application. In the accompanying drawings:

[0040] FIG1 is a schematic diagram of a framework of a specific embodiment of the vehicle exterior lighting control system of the present application;

[0041] FIG2 is a schematic diagram of a visual lighting editing interface;

[0042] Figures 3a and 3b are schematic diagrams of lighting description files;

[0043] FIG4 is a lighting control flow chart of the vehicle exterior lighting control system of the present application;

[0044] FIG5 is a schematic diagram of the framework of another specific embodiment of the vehicle exterior lighting control system of the present application;

[0045] FIG6 is a flow chart corresponding to different welcoming stage modes;

[0046] FIG7 is a schematic diagram of a point matrix formed by dividing the area with the vehicle center as the center;

[0047] FIG8 is a schematic diagram of a front projection headlight projecting an image according to a user's approaching vehicle trajectory;

[0048] FIG9 is a schematic diagram of a circular mask shielding a signal light welcoming image;

[0049] FIG10 is a flow chart of generating a map element in combination with weather and date;

[0050] FIG11 is a flow chart of the vehicle welcome control method of the present application for selecting welcome lighting effect control according to vehicle environmental factors.

[0051] Explanation of the reference numerals 1: point matrix one; 2: point matrix two; 3: point matrix three; 4: circular mask; 5: signal light welcome image; A: vehicle center. DETAILED DESCRIPTION

[0052] The specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation methods described here are only used to illustrate and explain the present application, and the scope of protection of the present application is not limited to the specific implementation methods described below.

[0053] The present application provides a vehicle exterior lighting control system, see Figure 1, the exterior lighting control system includes a digital lighting control unit electrically connected to the exterior lighting unit, the exterior lighting unit includes an intelligent projection lighting module, an interactive signal light module and a surround interactive dynamic projection module, the digital lighting control unit includes a lighting editing module and a digital lighting processing module; the lighting editing module provides a visual lighting editing interface corresponding to the vehicle styling layout, the visual lighting editing interface forms customizable exterior lighting information, the exterior lighting information includes projection headlight brightness information, interactive signal light pixel information and surround projection light brightness information; the digital lighting processing module is communicatively connected to the lighting editing module to convert the exterior lighting information into a lighting description file, and transmit the lighting description file to the exterior lighting unit for display control, wherein the projection headlight brightness information in the lighting description file is transmitted to the intelligent projection lighting module, the interactive signal light pixel information is transmitted to the interactive signal light module, and the surround projection light brightness information is transmitted to the surround interactive dynamic projection module.

[0054] Specifically, referring to Figures 1-3, the interactive signal light portion of the interactive signal light module in the visual light editing interface forms animated pixel information. In some specific embodiments, the pixel coordinates correspond one-to-one to the LED particles to be illuminated, and each pixel is described by a color channel, such as three RGB channels, each channel supporting a brightness of 0 to 255. Based on this, after encoding all particles one by one, the communication protocol between the digital light control unit and the exterior lights can be obtained. As an optimization, in the communication protocol data, only the 0 to 255 transmission content needs to be normalized to directly calculate the PWM (pulse width modulation) duty cycle of each LED. The interactive signal light control method of the entire vehicle is controlled by the above principle. By adjusting the pixel description corresponding to the LED in the interactive signal light, the image displayed by the interactive signal light can be changed.

[0055] Smart projection headlight control is divided into brightness control and projection content control. The smart projection lighting module includes projection headlights and auxiliary high and low beam components. In the visual lighting editing interface, projection headlight brightness information and auxiliary high and low beam brightness information are generated for the projection headlight and auxiliary high and low beam components, respectively, to describe the projection headlight brightness and auxiliary high and low beam brightness. Specifically, as shown in Figure 2, in the converted lighting description file, the corresponding pixels are used to describe the brightness of the projection headlights and auxiliary high and low beams. Projection content control requires first determining a light pattern base map. Multiple light pattern base maps that meet the high and low beam light pattern standards are available for the user to select. The user then determines the mapping elements, assembles the graphics based on the mapping positions, and finally projects the image based on the brightness of the projection module and auxiliary high and low beam modules. To diversify the projection headlight's projection image, the lighting editing module also includes a video source unit for customizing the projection image. The customized projection image is processed by the digital light processing module to form the required mapping elements, which are then transmitted to the smart projection lighting module to form the customized projection image.

[0056] The control of the surround projection lamp is similar to that of the smart projection headlight, and can also be divided into brightness control and projection content control. In the visual light editing interface, the surround projection lamp part corresponding to the surround interactive dynamic projection module is formed with surround projection lamp brightness information, which is used to describe the brightness of the surround projection lamp. Since the surround projection lamp can adopt full-color mode, its brightness definition ranges from 0% to 100%. When converted into a lighting description file, it can be synchronously reflected in RGB information. The projection content requires the confirmation of the mapping elements, the combination of graphics according to the mapping position, and finally the projection according to the set surround projection lamp brightness. In order to achieve the diversification of the projection image of the surround projection lamp, its projection image can also be customized through the video source unit. After the customized projection image is processed by the digital light processing module, the required mapping elements are formed, which are then transmitted to the surround interactive dynamic projection module to form a customized projection image.

[0057] The self-editing interface in Figure 2 corresponds to the headlight and taillight units, and can be configured with two lighting description files, as shown in Figures 3a and 3b. Together, these files comprise the lighting description file for the entire system. Different lighting description file configurations can be created based on the location of the exterior lighting unit.

[0058] The vehicle exterior lighting control system of the present application uses a unified digital lighting control unit and a lighting description file as a carrier to concretize the lighting control method, thereby uniformly controlling the lighting of the intelligent projection lighting module, the interactive signal light module and the surround interactive dynamic projection module through a visual lighting editing interface. Moreover, since there is only one lighting description file corresponding to the same frame display screen, there is only one visual lighting editing interface corresponding to the same frame display screen. The converted lighting description file is unique and can jointly control the intelligent projection lighting module, the interactive signal light module and the surround interactive dynamic projection module. There is no need for the execution units of each exterior light to provide a synchronous feedback signal, thereby achieving precise synchronization in the exterior lighting display process.

[0059] Specifically, referring to FIG4 , a specific embodiment of a digital lighting control unit displaying a frame of picture is described. The personnel involved design projection display materials frame by frame according to the vehicle shape, and make unified planning for the brightness of the exterior light projection unit and the display content (projection headlight brightness information, interactive signal light pixel information and surround projection light brightness information) according to the display effect. The exterior light information is formed in the shape diagram of the visual light editing interface. According to the shape diagram, the exterior light information is converted into a lighting description file, and the lighting description file is transmitted to the intelligent projection lighting module, the interactive signal light module and the surround interactive dynamic projection module for display control. The pixel information in the lighting description file is sent to the LED driver module according to the communication protocol. The LED driver module lights up the interactive signal light LED one by one according to the communication protocol. The photographic headlight and surround interactive light adjust the backlight brightness according to the communication protocol. According to the scene definition or custom situation, the projection headlight image and the surround interactive light image are generated. Signaling, low voltage differential signal) technology transmits the generated projection headlight image to the projection headlight, and transmits the surround interactive light image to the surround interactive light. Each execution module of the intelligent projection lighting module, the interactive signal light module and the surround interactive dynamic projection module completes the corresponding display according to the control command and data, thereby forming or projecting the corresponding image. Preferably, each execution module feeds back the operation and fault status according to the current status, so that in the event of a fault, it can promptly inform the user for maintenance.

[0060] The second aspect of this application provides a vehicle welcome control method, which installs the vehicle exterior lighting control system provided by the first aspect of this application on a vehicle, and uniformly controls the intelligent projection lighting module, interactive signal light module, and surround interactive dynamic projection module through a lighting description file, thereby achieving precise synchronization of the actuators of the three during the lighting display process, and enabling customization of the lighting display content, making the welcoming process more personalized. Specifically, the vehicle welcome control method includes:

[0061] The target signal within the preset range of the vehicle is detected. Specifically, the target signal is not limited to the start signal of the physical key, but can also be a wireless start signal sent to the vehicle by the smart key. Preferably, referring to Figure 5, the smart key communicates wirelessly with the smart key control module through UWB (ultra-wideband) technology to obtain the relative distance and relative angle between the vehicle and the key in real time. The smart key control module outputs the distance and angle information to the digital lighting control unit. The distance and angle information can be transmitted using CAN or CANFD protocol, or can be transmitted using on-board Ethernet or serial port protocol.

[0062] In response to detecting a target signal within a preset range, the customized exterior lighting information is converted into a lighting description file through the digital lighting processing module and transmitted to the intelligent projection lighting module, interactive signal light module and surround interactive dynamic projection module for display control to create a vehicle welcoming effect.

[0063] In some specific embodiments, the digital lighting control unit is provided with a storage module, which stores multiple sets of exterior lighting information, which are generated by custom settings of different users. Therefore, the vehicle welcome control method of the present application responds to the target signal detected within a preset range, confirms the user information corresponding to the target signal, and obtains the corresponding exterior lighting information based on the user information, thereby performing display control on the exterior lighting unit according to the exterior lighting information. Specifically, it is possible to bind the smart key to the user information one by one. Through the matching relationship between the authorized account and the authorized key, the smart key control module identifies the user who currently starts the vehicle through the device ID, and forms a unique welcome lighting effect projection.

[0064] In order to further enhance the interactivity between the welcome lighting effect and the user, the vehicle welcome control method of the present application can obtain the user's personalized information based on the user information. The personalized information includes the user's birthday, anniversary and other information. The personalized information can be pre-entered into the vehicle system when the vehicle is registered, or connected to the Internet through the vehicle network management to obtain the personalized information. Based on the personalized information, the intelligent projection lighting module and / or the surround interactive dynamic projection module are controlled to display personalized elements in the projected image. For example, when it is obtained that today is the user's birthday, the projected image displays relevant elements for congratulating the user on his birthday, such as birthday cakes, candles and other icon elements. The representation forms are diverse and will not be repeated here. In some embodiments, personalized information and personalized elements can be associated and stored in a storage module, so that when the personalized information is obtained, the corresponding personalized elements can be obtained for projection. The layout of each personalized element can be automatically arranged according to the user's settings or the size of the projection range. The present application can implement more variations, which will not be repeated here.

[0065] In some specific embodiments, when a user approaches a vehicle, in order to enhance the interaction and fun of the welcome lighting effect with the user, the vehicle welcome control method of the present application can set different welcome stage modes according to the distance range between the target signal and the vehicle. The display control of the exterior lighting unit in different welcome stage modes is different, and the display control method of the exterior lighting unit in different welcome stage modes can be pre-stored. Specifically, in response to detecting a target signal within a preset range, the current target signal and vehicle distance information are obtained, and the corresponding welcome stage mode is obtained based on the target signal and vehicle distance information; thereby, the exterior lighting unit is displayed and controlled according to the customized exterior lighting information in the welcome stage mode. Different exterior lighting units can be activated in different welcome stage modes. Each exterior lighting unit can also display in different display modes and / or display content in different welcome stage modes.

[0066] For example, as shown in FIG6 , after the vehicle wakes up, three activation conditions are set corresponding to different distance ranges, that is, three welcome stage modes are set, which can be as follows:

[0067] In the first welcoming stage mode (activation condition 1: the key signal is within the first distance range, which can be, for example, 15 to 20 meters): the intelligent projection lighting module is controlled to project light animation according to the position information of the user and the vehicle, see Figure 7, with the center A of the vehicle as the center area, circular rings are set outward in sequence, and the areas are divided at equal angles to form different dot matrices. The projection range of the intelligent projection headlights is limited to a certain angle area in front of the vehicle. If it is detected that the trajectory of the user walking into the vehicle does not fall within the projection range, the front projection headlights will not be started to project images for welcoming guests; if it is detected that the user is approaching the vehicle and the trajectory falls within the projection range, see Figure 8, according to the user's location The system uses a matrix (Point Matrix 1) to project a welcome image in front of the path (Point Matrix 2), and the position of the projected image changes as the user's position changes. To further enhance the interactivity of the welcome lighting effect, the lighting effect can be reflected in a breathing animation. Each breathing effect is completed by gradually lighting up - maintaining full brightness - gradually extinguishing - maintaining full brightness. The breathing frequency can match the user's movement speed. For example, it takes a user 2 seconds to enter Point Matrix 1 and leave Point Matrix 1. When the user moves to Point Matrix 2, the light is projected on Point Matrix 3. Based on the movement time estimate, it takes 2 seconds for the user to walk through a direction. At this time, each cycle of the projected animation is 500ms. The faster the user moves, the faster the breathing frequency. If the user stops in a certain area or suddenly changes the movement speed, the projection position will switch in real time with the user's location. Specifically, it is necessary to confirm that the welcome image is always located in front of the user's walking path, and the position signal of the smart key is inaccurate. Preferably, the user's feet can be identified by sensors on the vehicle. For example, the camera collects image information of the target signal's location and inputs it into the digital lighting control unit in real time in the form of a video stream. The digital lighting processing module uses a computer vision detection algorithm to identify the pedestrian's left and right feet, and derives the positional relationship between the left and right feet relative to the center of the vehicle. The position information of the foot closest to the vehicle is obtained, and this position information is used to confirm which point matrix the user is in, so that the welcome image projected by the intelligent projection lighting module is always located in front of the user. At the same time, the interactive signal light module is controlled to display an adaptive welcome image. Specifically, referring to FIG9 , a mask 4 (for example, a circular mask) is added to the welcome image generated based on the customized interactive signal light pixel information. The mask 4 obscures the signal light welcome image 5.The mask 4 can adopt a multi-level circular mask of concentric circles (masks of other shapes can also form multi-level concentric masks in a similar manner). As the distance between the user and the vehicle continues to decrease, the multi-level circular mask gradually becomes transparent from the central circular door panel to the outside, until all the circular masks are completely transparent, and the complete signal light welcome image 5 is fully displayed. When the user continues to approach the vehicle, the user visually feels that the welcome image is constantly changing with the distance between the user and the vehicle, thereby having stronger interactivity.

[0068] In the second welcome stage mode (activation condition 2: the key signal is within the second distance range, which can be, for example, 5 to 15 meters): the intelligent projection lighting module and the interactive signal light module can continue to use the display control method of the first welcome stage mode; the surround interactive dynamic projection module is controlled to project a welcome image in the vicinity of the vehicle. The welcome image can be projected according to the current time and weather conditions. A full set of effect projection templates corresponding to the time and weather conditions can be downloaded in advance in the storage module to store animated background videos for various weather conditions (sunny, cloudy, light rain, moderate rain and heavy rain, etc.) and illustration elements for special dates (Mid-Autumn Festival, National Day, birthdays and anniversaries, etc.). In this way, the date and weather can be matched according to the user information corresponding to the target signal, and the projection image can be selected according to the match, specifically referring to Figure 10, the background map can be selected according to the time, the mapping elements can be selected according to the weather, and the mapping elements can be selected according to holidays. The vehicle's location information, time information, and weather text information are superimposed, and the above elements and information are synthesized into a video, and projected through a surround interactive dynamic projection module, so that users can understand the relevant information in real time. Among them, as a preferred embodiment, when projecting weather information, the corresponding screen recording information can be directly captured from the weather forecast software in the vehicle system, and projected through the surround interactive dynamic projection module.

[0069] In the third welcome stage mode (activation condition 3: the key signal is within the third distance range, which can be, for example, 0-5m): the intelligent projection lighting module ends projection, and the interactive signal light module displays vehicle condition information. The display priority of this vehicle condition information content is, from high to low, vehicle fault warning, abnormal tire pressure warning, and range display. If the user has preset a navigation route, the navigation route information can be collected based on the user information. The on-board navigation module in the vehicle system sends the navigation information to the digital lighting control unit for processing. Based on the destination and arrival time set by the navigation, the surround interactive dynamic projection module projects a driving test prediction animation. If the user has not preset a navigation route, the surround interactive dynamic projection module continues to use the display control method of the second welcome stage mode.

[0070] It should be noted that a fourth welcome stage mode can also be set. The activation condition 4 is that the user steps on the brake after getting on the vehicle and judges the brake signal. When the brake signal is responded to, it means that the vehicle power system is started, the headlights of the intelligent projection lighting module are lit, and the set startup animation is projected through pixelated control capabilities. The brightness of the auxiliary lighting can preferably be gradually lit in a linear manner to form a startup light lighting projection ceremony to increase the sense of ceremony at the startup moment; the interactive signal light module is controlled to display a customized personalized light theme image, and the surround interactive dynamic projection module is controlled to perform functions according to the vehicle's operating status. For example, when ready to start, it can identify the forward gear or reverse gear, project a forward arrow or reverse arrow image, identify the left turn signal or the right turn signal, and project a left turn or right turn arrow image to serve as a warning to other surrounding traffic participants.

[0071] In addition, it should be noted that the above-mentioned different welcoming stage modes are only a specific scene setting and are not a limitation on the scope of protection of this application. Specifically, weather elements or date elements can also be projected by the intelligent projection lighting module. When a target signal is detected within a preset range, the current weather information and / or date information is obtained. According to the current weather information and / or date information, the projection image of the intelligent projection lighting module and / or the surround interactive dynamic projection module is controlled to display weather elements or date elements.

[0072] During actual use, the vehicle's surrounding environment may interfere with the projected images of the intelligent projection lighting module and the surround interactive dynamic projection module, thereby making the welcome light effect look poor. Therefore, the vehicle welcome control method of the present application may also include: in response to detecting a target signal within a preset range, obtaining the environmental signal around the vehicle in real time, the environmental signal is collected from the vehicle body sensor (one or more of the camera, lidar and millimeter wave radar); based on the environmental signal obtained in real time, judging whether the vehicle's surrounding environment meets the projection site conditions; in response to the vehicle's surrounding environment meeting the projection site conditions, display control is performed on the exterior lighting unit according to the customized exterior lighting information, that is, display control is performed according to the above-mentioned different scene definitions to realize the linkage of the projection content of the three intelligent projection lighting module, the interactive signal light module and the surround interactive dynamic projection module; or, in response to the vehicle's surrounding environment not meeting the projection site conditions, display control is performed on the exterior lighting unit according to the preset scene definition. Specifically, when it is detected that there is a wall in front of the vehicle, the intelligent projection lighting module can project on the wall. However, the original customized projection image is based on the ground projection setting and cannot be correctly projected and displayed on the wall. The intelligent projection lighting module can indeed be set to project an image on the wall. For example, if it is recognized that there is light snow today, the intelligent projection lighting module projects an image of falling snowflakes onto the wall. Furthermore, the intelligent projection lighting module, the interactive signal light module and the surround interactive dynamic projection module all display the image of falling snowflakes and synchronize the falling speed of the snowflakes. According to the positional relationship of the three displayed images, a continuous image of falling snowflakes is formed. For example, the snowflakes are first projected onto the wall in front of the vehicle. When the snowflakes fall to the bottom edge of the wall projection frame, the snowflakes fall to the display area of ​​the interactive signal light located below the front headlights. When they reach the bottom edge of the display area, they finally come to the projection area of ​​the surround interactive dynamic projection module. The snowflakes fall to the ground and ripples are caused on the ground. When it is detected that the front of the vehicle is blocked by an obstacle, which is not conducive to the clear and complete display of the projection content, the intelligent projection lighting module, the interactive signal light module and the surround interactive dynamic projection module are controlled to form a welcoming method in which the brightness of the three lights changes in coordination. The brightness of the lights is gradually adjusted based on the relative distance between the driver and the vehicle. When the driver approaches the vehicle, holiday and weather information can be displayed on the display images of the interactive signal light module and the surround interactive dynamic projection module.

[0073] The vehicle welcome control method of the present application is based on the vehicle exterior lighting control system, which can achieve precise synchronization during the exterior lighting display process, and can customize the exterior lighting information, so as to achieve different lighting expressions such as projection headlights, interactive signal lights and surround projection lights according to different scenes, making the vehicle welcome lighting effect more intelligent, and increasing the diversity of the welcome lighting effect through human-computer interaction, and formulating welcome plans according to the personality of different users.

[0074] In addition, the third aspect of the present application also provides a vehicle, including the vehicle exterior lighting control system provided by the first aspect of the present application, and executing the vehicle welcome control method provided by the second aspect of the present application.

[0075] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, various simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the scope of protection of the present application.

[0076] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this application will not further describe various possible combinations.

[0077] In addition, the various implementation methods of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed in the present application.

Claims

1. A vehicle exterior lighting control system, characterized in that: It includes a digital light control unit electrically connected to an exterior light unit, wherein the exterior light unit includes an intelligent projection lighting module, an interactive signal light module and a surround interactive dynamic projection module, and the digital light control unit includes a light editing module and a digital light processing module; The lighting editing module provides a visual lighting editing interface corresponding to the vehicle styling arrangement, wherein the visual lighting editing interface is formed with customizable exterior lighting information, wherein the exterior lighting information includes projection headlight brightness information, interactive signal light pixel information, and surround projection light brightness information; The digital light processing module is communicatively connected to the light editing module to convert the exterior light information into a lighting description file, and transmit the lighting description file to the exterior light unit for display control.

2. The vehicle exterior lighting control system according to claim 1, characterized in that: The digital light processing module transmits the projection headlight brightness information to the intelligent projection lighting module, transmits the interactive signal light pixel information to the interactive signal light module, and transmits the surround projection light brightness information to the surround interactive dynamic projection module.

3. The vehicle exterior lighting control system according to claim 1 or 2, characterized in that: The lighting editing module is also provided with a video source unit for customizing the projection image, and the digital lighting processing module can transmit the customized projection image to the intelligent projection lighting module and / or the surround interactive dynamic projection module respectively.

4. A vehicle welcoming control method, characterized in that: A vehicle exterior lighting control system according to any one of claims 1 to 3 is provided on the vehicle, and the method comprises: Detect target signals within a preset range of the vehicle; In response to detecting the target signal within a preset range, display control is performed on the exterior lighting unit according to the customized exterior lighting information.

5. The vehicle welcoming control method according to claim 4, characterized in that: The digital light control unit is provided with a storage module, the storage module stores multiple sets of the exterior light information, the multiple sets of the exterior light information are customized by different users, in response to detecting the target signal within a preset range, display control of the exterior light unit according to the customized exterior light information includes: In response to detecting the target signal within a preset range, confirming user information corresponding to the target signal; Acquire the corresponding exterior lighting information according to the user information; Display control is performed on the exterior lighting unit according to the exterior lighting information.

6. The vehicle welcoming control method according to claim 5, characterized in that: The personalized information of the user is acquired according to the user information, and based on the personalized information, the projection image of the intelligent projection lighting module and / or the surround interactive dynamic projection module is controlled to display personalized elements.

7. The vehicle welcoming control method according to claim 4, characterized in that: Different welcoming stage modes are set according to the distance range between the target signal and the vehicle, and the display control of the exterior light unit in the different welcoming stage modes is different, wherein, in response to detecting the target signal within a preset range, display control of the exterior light unit according to the customized exterior light information includes: In response to detecting the target signal within a preset range, obtaining current distance information between the target signal and the vehicle; According to the target signal and the vehicle distance information, a corresponding welcoming stage mode is obtained; The exterior lighting unit is displayed and controlled according to the exterior lighting information customized in the welcome stage mode.

8. The vehicle welcoming control method according to claim 4, characterized in that: The method further includes: In response to detecting the target signal within a preset range, acquiring an environmental signal around the vehicle in real time, the environmental signal being collected from a vehicle body sensor; Based on the environmental signal acquired in real time, determining whether the surrounding environment of the vehicle meets the projection site conditions; In response to the vehicle surrounding environment satisfying the projection site conditions, the exterior lighting unit is displayed and controlled according to the customized exterior lighting information; or, in response to the vehicle surrounding environment not satisfying the projection site conditions, the exterior lighting unit is displayed and controlled according to a preset scene definition.

9. The vehicle welcoming control method according to claim 4, characterized in that: The method further includes: In response to detecting the target signal within a preset range, obtaining current weather information and / or date information; According to the current weather information and / or date information, the projection image of the intelligent projection lighting module and / or the surround interactive dynamic projection module is controlled to display weather elements or date elements.

10. A vehicle, characterized in that: The vehicle exterior lighting control system comprises the vehicle exterior lighting control system according to any one of claims 1 to 3, and executes the vehicle welcome control method according to any one of claims 4 to 9.

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