Vehicle lamp projection system and vehicle

Abstract

The invention discloses a vehicle lamp projection system and a vehicle, and relates to the technical field of vehicle accessories. The vehicle lamp projection system comprises a vehicle lamp projection device and a vehicle lamp control device. The vehicle lamp projection device comprises at least one vehicle lamp projection module, each vehicle lamp projection module comprises a light-emitting assembly and a pattern switching piece, the pattern switching piece comprises at least one projection pattern, and a part of area of the pattern switching piece is located on a light-emitting light path of the light-emitting assembly; the vehicle lamp control device is used for receiving relevant parameter signals, sent by the vehicle body controller, of the current state of a vehicle, determining working parameters of a light-emitting assembly in a corresponding vehicle lamp projection module and a target projection pattern of a pattern switching piece based on the relevant parameter signals, and adjusting the working state of the light-emitting assembly based on the working parameters of the light-emitting assembly. And based on the target projection pattern of the pattern switching piece, driving the target projection pattern to move to a light emitting path of the light emitting assembly. According to the invention, the manufacturing cost of the vehicle lamp projection system can be reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle accessories, and in particular to a vehicle light projection system and a vehicle. Background Art

[0002] With the development of the automobile industry, car light projection technology has also gradually developed. It can not only assist traditional car lights in providing driving lighting, but also project patterns on the road to guide driving or interact with other road participants, thereby improving the driving experience of the vehicle.

[0003] In related technologies, the car light projection system consists of a DMD (Digital Micromirror Device) module, pixel headlights and other components. Thousands of pixels in the pixel headlights emit light, and the DMD module receives the light and selectively reflects the light to the projection light path or light absorber, thereby projecting the target pattern.

[0004] The DMD module and pixel headlights in the above solution are expensive and require high installation technology, which leads to high costs for the car light projection system. Summary of the Invention

[0005] The embodiments of the present disclosure provide a vehicle light projection system and a vehicle that can solve the above-mentioned technical problems existing in the related art. The technical solution is as follows:

[0006] In a first aspect, a vehicle light projection system is provided. The vehicle light projection system is located inside a vehicle body and connected to the vehicle body. The vehicle light projection system includes a vehicle light projection device and a vehicle light control device.

[0007] The vehicle light projection device includes at least one vehicle light projection module, each of which includes a light-emitting component and a pattern switching component, the pattern switching component includes at least one projection pattern, and a partial area of ​​the pattern switching component is located on the light output path of the light-emitting component;

[0008] The headlight control device is used to: receive relevant parameter signals of the current state of the vehicle sent by the body controller and determine the working parameters of the light-emitting component in the corresponding headlight projection module and the target projection pattern of the pattern switching component based on the relevant parameter signals; adjust the working state of the light-emitting component based on the working parameters of the light-emitting component; and drive the target projection pattern to move to the light output path of the light-emitting component based on the target projection pattern of the pattern switching component.

[0009] In some possible implementations, the vehicle light projection module further includes a collimating lens, and the collimating lens is located between the light-emitting component and the pattern switching component.

[0010] In some possible implementations, the vehicle light projection module further includes a lens assembly, and the lens assembly is located on a side of the pattern switching component away from the light-emitting assembly;

[0011] The vehicle light control device is further configured to determine target optical parameters of the lens assembly in the corresponding vehicle light projection module based on the relevant parameter signal, and adjust actual optical parameters of the lens assembly based on the target optical parameters of the lens assembly.

[0012] In some possible implementations, the vehicle light projection module further includes a heat dissipation component, which is respectively connected to the light-emitting component and the pattern switching component and is used to dissipate heat from the light-emitting component and the pattern switching component.

[0013] In some possible implementations, the relevant parameter signal of the vehicle's current state includes at least one of a vehicle positioning parameter, a vehicle driving scene parameter, and an in-vehicle large screen instruction parameter.

[0014] In some possible embodiments, the light-emitting assembly includes a shell, an LED lamp and a circuit board, the LED lamp and the circuit board are both located in the shell, the LED lamp is electrically connected to the circuit board, and the circuit board is electrically connected to the vehicle light control device.

[0015] In some possible implementations, the vehicle light projection system is detachably connected to the vehicle body, and the vehicle light control device is wirelessly connected to the vehicle body controller.

[0016] In some possible implementations, the pattern switching component is a rotating wheel element, and a rotating axis of the rotating wheel element is parallel to an extension direction of an optical axis of the light-emitting component.

[0017] In some possible implementations, the projection pattern includes at least one of a straight-ahead arrow, a left-turn arrow, a right-turn arrow, a crosswalk, and a vehicle-width rectangle.

[0018] In a second aspect, a vehicle is provided, comprising the vehicle light projection system according to any one of the first aspects.

[0019] The beneficial effects of the technical solution provided by the present disclosure include at least:

[0020] In the present disclosure, a car light projection system using a light-emitting component and a pattern switching component is used. Part of the light emitted by the light-emitting component can pass through the target projection pattern of the pattern switching component and be projected onto the outside of the vehicle, and another part of the light emitted by the light-emitting component is blocked by the non-target projection pattern area of ​​the pattern switching component. In this way, the car light projection system can project the target projection pattern onto the external environment of the vehicle. Since the structures of the light-emitting component and the pattern switching component are relatively simple and easy to install, the car light projection system in the present disclosure has low cost and greater market competitiveness.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 1 is a structural diagram of a vehicle light projection system provided by an embodiment of the present disclosure;

[0024] Figure 2 1 is a structural diagram of a vehicle light projection system provided by an embodiment of the present disclosure;

[0025] Figure 3 This is a structural diagram of a vehicle computer provided by an embodiment of the present disclosure;

[0026] Figure 4 is a structural schematic diagram of a pattern switching component provided by an embodiment of the present disclosure;

[0027] Figure 5 is a structural schematic diagram of a pattern switching component provided by an embodiment of the present disclosure;

[0028] Figure 6 This is a schematic diagram of communication between a vehicle light projection system and a vehicle computer provided by an embodiment of the present disclosure;

[0029] Figure 7 This is a control logic diagram of a vehicle light control device provided by an embodiment of the present disclosure.

[0030] Reference numerals:

[0031] 1. Car light projection device; 10. Car light projection module;

[0032] 11. Light-emitting component; 111. Housing; 112. LED lamp; 113. Circuit board;

[0033] 12. Pattern switching component; 13. Collimating lens; 14. Lens assembly; 14a. Lens; 15. Heat dissipation assembly;

[0034] 2. Headlight control device;

[0035] 31. Display screen; 32. Body controller; 33. Memory.

[0036] The above drawings illustrate specific embodiments of the present disclosure, which will be described in more detail below. These drawings and textual descriptions are not intended to limit the scope of the present disclosure in any way, but rather to illustrate the concepts of the present disclosure to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0038] An embodiment of the present disclosure provides a vehicle light projection system. The vehicle light projection system is located inside a vehicle body and connected to the vehicle body. The vehicle light projection system includes a vehicle light projection device 1 and a vehicle light control device 2.

[0039] The vehicle light projection device 1 includes at least one vehicle light projection module 10 . Each vehicle light projection module 10 includes a light emitting component 11 and a pattern switching component 12 . The pattern switching component 12 includes at least one projection pattern. Part of the pattern switching component 12 is located on the light output path of the light emitting component 11 .

[0040] The present disclosure does not impose any specific limitation on the number of vehicle light projection modules 10 in the vehicle light projection device 1 , for example, one, two, or more, which can be specifically set according to parameters such as the number of projection patterns and the projection area.

[0041] Next, the vehicle light projection module 10 is further described:

[0042] Example 1: Reference Figure 1 As shown, the headlight projection device 1 includes a headlight projection module 10. When the target projection pattern of the pattern switching component 12 moves to the light output path of the light-emitting component 11, part of the light emitted by the light-emitting component 11 can pass through the target projection pattern of the pattern switching component 12 and be projected onto the outside of the vehicle, and another part of the light emitted by the light-emitting component 11 is blocked by the non-target projection pattern area of ​​the pattern switching component 12. In this way, the headlight projection system can project the target projection pattern onto the external environment of the vehicle.

[0043] Example 2: Reference Figure 2 As shown, the vehicle lamp projection device 1 includes two vehicle lamp projection modules 10 , and the pattern switching members 12 of the two vehicle lamp projection modules 10 each have at least one projection pattern that is different.

[0044] When both pattern switching components 12 have target projection patterns, the car light control device 2 can drive a light-emitting component 11 to turn on, and drive the target projection pattern of the corresponding pattern switching component 12 to move to the light output path of the light-emitting component 11. Part of the light emitted by the light-emitting component 11 can pass through the target projection pattern of the pattern switching component 12 and be projected onto the outside of the vehicle, and another part of the light emitted by the light-emitting component 11 is blocked by the non-target projection pattern area of ​​the pattern switching component 12. In this way, the car light projection system can project the target projection pattern onto the external environment of the vehicle.

[0045] When only one of the two pattern switching parts 12 has a target projection pattern, the car light control device 2 drives the corresponding light-emitting component 11 to turn on, and drives the target projection pattern of the pattern switching part 12 with the target projection pattern to move to the light output path of the light-emitting component 11. Part of the light emitted by the light-emitting component 11 can pass through the target projection pattern of the pattern switching part 12 and be projected outside the vehicle, and another part of the light emitted by the light-emitting component 11 is blocked by the non-target projection pattern area of ​​the pattern switching part 12. In this way, the car light projection system can project the target projection pattern into the external environment of the vehicle.

[0046] Example 3: Reference Figure 2 As shown, the vehicle lamp projection device 1 includes two vehicle lamp projection modules 10 , and the pattern switching members 12 of the two vehicle lamp projection modules 10 each have at least one projection pattern that is different.

[0047] When both pattern switching parts 12 have target projection patterns, when both pattern switching parts 12 have target projection patterns, the car light control device 2 can drive the two light-emitting components 11 to turn on, and drive the target projection pattern of the corresponding pattern switching part 12 to move to the light output path of the light-emitting component 11. Part of the light emitted by the two light-emitting components 11 can pass through the target projection pattern of their respective corresponding pattern switching parts 12 and be projected onto the outside of the vehicle. The other part of the light emitted by the two light-emitting components 11 is blocked by the non-target projection pattern area of ​​the corresponding pattern switching parts 12. In this way, through the projection of the two car light projection modules 10, the brightness of the target projection pattern projected onto the outside of the vehicle can be increased.

[0048] When only one of the two pattern switching parts 12 has a target projection pattern, the car light control device 2 drives the corresponding light-emitting component 11 to turn on, and drives the target projection pattern of the pattern switching part 12 with the target projection pattern to move to the light output path of the light-emitting component 11. Part of the light emitted by the light-emitting component 11 can pass through the target projection pattern of the pattern switching part 12 and be projected outside the vehicle, and another part of the light emitted by the light-emitting component 11 is blocked by the non-target projection pattern area of ​​the pattern switching part 12. In this way, the car light projection system can project the target projection pattern into the external environment of the vehicle.

[0049] When the vehicle light projection device 1 includes three or more vehicle light projection modules 10 , the operation of each vehicle light projection module 10 is similar to that in the second or third embodiment, and will not be described in detail here.

[0050] The headlight control device 2 is used to: receive the relevant parameter signal of the current state of the vehicle sent by the body controller and determine the working parameters of the light-emitting component 11 in the corresponding headlight projection module 10 and the target projection pattern of the pattern switching component 12 based on the relevant parameter signal; adjust the working state of the light-emitting component 11 based on the working parameters of the light-emitting component 11; and drive the target projection pattern to move to the light output path of the light-emitting component 11 based on the target projection pattern of the pattern switching component 12.

[0051] In this way, the headlight control device 2 can adjust the working state of the light-emitting component 11 and the area where the pattern switching component 12 is located on the light-emitting path of the light-emitting component 11 according to different relevant parameter signals of different vehicle states, thereby enabling the headlight projection system to project projection patterns with different parameters (for example: color, shape, flashing frequency, etc.).

[0052] The car light projection system adopts the light-emitting component 11 and the pattern switching component 12. Part of the light emitted by the light-emitting component 11 can pass through the target projection pattern of the pattern switching component 12 and be projected outside the vehicle, and another part of the light emitted by the light-emitting component 11 is blocked by the non-target projection pattern area of ​​the pattern switching component 12. In this way, the car light projection system can project the target projection pattern into the external environment of the vehicle.

[0053] In the present disclosure, the light-emitting component 11 only needs to emit light, and the requirements for the adjustable accuracy of the light are relatively low. For example, the light-emitting component 11 has an LED (Light Emitting Diode) lamp to meet the requirements of the present disclosure; the pattern switching component 12 can switch different projection patterns only through simple translation or rotation, without the need to adjust the deflection angle of each micromirror like the DMD module.

[0054] It can be seen that the structures of the light-emitting component 11 and the pattern switching component 12 in the present disclosure are relatively simple and easy to install. Therefore, the vehicle light projection system in the present disclosure has low cost and greater market competitiveness.

[0055] In some embodiments, the vehicle light control device 2 includes a control module and a storage module. The control module may be one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), central processing units (CPUs), or other electronic components. The PLDs may be complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), generic array logic (GALs), or any combination thereof, and are not specifically limited in the present disclosure.

[0056] The storage module may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0057] In some embodiments, the parameter signal related to the current state of the vehicle includes at least one of a vehicle positioning parameter, a vehicle driving scene parameter, and an in-vehicle large screen instruction parameter.

[0058] The vehicle's positioning parameters can be determined by the vehicle's positioning system, for example, by receiving vehicle-related satellite signals (such as the Global Positioning System (GPS) and the Beidou Navigation Satellite System (BDS)) and calculating the vehicle's latitude and longitude, altitude, and speed information through trilateration.

[0059] Vehicle driving scene parameters can be collected and determined through vehicle cameras, radars and other devices. For example, image information around the vehicle is collected through the vehicle-mounted camera, electromagnetic wave information around the vehicle is collected through the vehicle-mounted radar, and the driver's driving command information is collected through the main driver's seat lever.

[0060] In-car large screen instruction parameters can be actively input by passengers using the in-car terminal. Figure 6 As shown, the vehicle includes a display screen 31 , a body controller 32 and a memory 33 . The display screen 31 is electrically connected to the body controller 32 , and the body controller 32 is electrically connected to the memory 33 and the headlight control device 2 .

[0061] The AIoT APP (Artificial Intelligence of Things Application) is integrated in the memory 33. For example, it can be integrated during the development process or through OTA upgrade or software iteration of the vehicle computer. The control icon of the AIoT APP is displayed on the display screen 31. The user can enter the main operation interface of the AIoT APP by clicking the control icon of the AIoT APP displayed on the display screen 31.

[0062] For example, Figure 3 A schematic diagram of the main operation interface of an AIoT APP is shown. Figure 3 As shown, the main operation interface includes multiple sub-application options, such as: projection status, projection brightness, projection pattern, projection frequency, projection color, etc.

[0063] Specifically, the projection status sub-application includes on (ON) and off (OFF) operations. The user can press on (ON) to trigger the body controller 32 to send an on indication message to the headlight control device 2. The user can press off (OFF) to trigger the body controller 32 to send an off indication message to the headlight control device 2.

[0064] The projection brightness sub-application includes multiple brightness gear operations. The user can adjust different brightness gears to trigger the body controller 32 to send brightness adjustment instruction information of the light-emitting component 11 to the vehicle light control device 2.

[0065] The projection pattern sub-application includes multiple projection pattern operations. The user can select different projection patterns to trigger the vehicle controller 32 to send target projection pattern adjustment instruction information to the vehicle light control device 2.

[0066] The projection frequency sub-application includes multiple frequency gears (for example, fast, medium, and slow). The user can adjust different frequency gears to trigger the body controller 32 to send frequency adjustment instruction information of the light-emitting component 11 to the headlight control device 2.

[0067] The projection color sub-application includes multiple color gears (for example, red, yellow, and green). The user can adjust different color gears to trigger the body controller 32 to send color adjustment instruction information of the light emitting component 11 to the vehicle light control device 2.

[0068] In some embodiments, the vehicle light projection system is detachably connected to the vehicle body, and the vehicle light control device 2 is wirelessly connected to the vehicle body controller 32 .

[0069] In this way, the vehicle's reserved installation position and power supply interface can be used to fix the headlight projection system and provide a power source, without the need to use related wiring harnesses to achieve a wired communication connection between the headlight control device 2 and the body controller 32, making it convenient for users to independently choose factory pre-installation or later optional installation at a lower cost.

[0070] The present disclosure does not limit the specific connection method between the headlight control device 2 and the body controller 32. It can be matched and set according to parameters such as the original hardware type of the vehicle, the connection stability between the headlight control device 2 and the body controller 32, and the communication frequency requirements, for example: Bluetooth (Bluetooth), Wireless Fidelity (Wi-Fi), Ultra Wide Band (Ultra Wide Band), infrared point-to-point wireless communication technology, etc.

[0071] In some embodiments, the light-emitting assembly 11 includes a housing 111, an LED lamp 112 and a circuit board 113. The LED lamp 112 and the circuit board 113 are both located in the housing 111. The LED lamp 112 is electrically connected to the circuit board 113, and the circuit board 113 is electrically connected to the vehicle light control device 2.

[0072] The housing 111 can effectively protect the LED lamp 112 and the circuit board 113 to prevent foreign objects (such as stones, flying insects, road water, etc.) from scratching, impacting or short-circuiting the LED lamp 112 and the circuit board 113.

[0073] The present disclosure does not specifically limit the type of LED lamp 112 , and the LED lamp 112 can be configured based on the projection requirements, manufacturing costs, and other factors of different vehicle lighting projection systems. For example, the LED lamp 112 can be a monochromatic LED, which emits light at a single wavelength (or narrow wavelength band), such as red (620-750 nm), green (495-570 nm), or blue (450-495 nm). Specifically, the LED lamp 112 can be made of a single semiconductor material (e.g., indium gallium nitride (InGaN), gallium nitride (GaN), or aluminum gallium phosphide (AlInGaP)) or phosphor conversion (e.g., a blue LED plus yellow phosphor to generate white light).

[0074] As another example, the LED lamp 112 can be a polychromatic LED, such as: a two-color / three-color LED (integrating multiple monochrome chips (such as red + green + blue three-in-one, RGB LED)), a full-color LED (achieving a wide color gamut by dimming mixed RGB through the pulse width modulation principle), and a tunable white light LED (a combination of cool white (6500K) and warm white (2700K) chips to dynamically adjust the color temperature).

[0075] In some embodiments, reference Figure 1 and Figure 4 As shown, the pattern switching element 12 is a rotating wheel element, and the rotating axis of the rotating wheel element is parallel to the extending direction of the optical axis of the light-emitting component 11.

[0076] The rotating wheel element only needs to rotate a certain angle to switch different projection patterns on the light output path of the light-emitting component 11, reducing the accommodation space required for the pattern switching component 12 and reducing the size of the car light projection module 10, which is conducive to the miniaturization design and installation convenience of the car light projection module 10.

[0077] In some embodiments, the projected pattern includes straight schematic arrows ( Figure 4 and Figure 5 The upper pattern in the middle), the left turn arrow ( Figure 4 and Figure 5 Left pattern in the middle), right turn arrow ( Figure 4 and Figure 5 The right pattern in the figure), pedestrian crossing line ( Figure 5 The lower pattern in the figure) and the vehicle width rectangle ( Figure 4 At least one of the following patterns.

[0078] The straight arrow, left turn arrow and right turn arrow are used to indicate the vehicle's driving trend, so that other road participants (such as other drivers, non-motor vehicle drivers, pedestrians, etc.) can intuitively understand the vehicle's driving intention and perform subsequent operations such as changing lanes and slowing down in a timely manner.

[0079] Pedestrian crossings are used to give priority to pedestrians and non-motor vehicle drivers crossing the street, avoiding collisions between vehicles and pedestrians due to competing for the right of way, and improving vehicle driving safety.

[0080] When the light-emitting component is on for a long time, the vehicle width indication rectangle can project two vehicle width lines on the front of the vehicle. The width lines can reach a certain length according to the calibration. It is suitable for driving scenarios such as auxiliary passage on narrow roads with stone piers, passing on narrow rural roads at night, and passing through crowded and narrow spaces in parking lots.

[0081] When the light-emitting components flash at a certain frequency, the vehicle width schematic rectangle can present an opening and closing optical effect, which is helpful in solving the problem of pedestrian ghost head collision warning, the problem of blind spots when leaving parking spaces, and the problem of reminding surrounding pedestrians when leaving the parking space or unlocking dynamic welcome.

[0082] In some embodiments, the vehicle light projection module 10 further includes a collimator 13 , which is located between the light emitting component 11 and the pattern switching component 12 .

[0083] The collimator 13 can convert the divergent light emitted by the light emitting component 11 into a parallel light beam, reduce the diffusion angle of the light, improve the directionality, and thus avoid imaging blur and energy loss caused by excessive divergence of the light beam.

[0084] The collimator 13 usually adopts a convex lens or concave mirror structure. Through precise curvature design, the incident divergent light is refracted or reflected to become parallel light. The collimator 13 of different car light projection modules 10 can be designed with different curvature parameters to meet the light divergence angle of different light-emitting components 11.

[0085] In some embodiments, the vehicle light projection module 10 further includes a lens assembly 14, which is located on a side of the pattern switching element 12 away from the light-emitting assembly 11. The vehicle light control device 2 is further configured to determine target optical parameters of the lens assembly 14 in the corresponding vehicle light projection module 10 based on the relevant parameter signal, and adjust the actual optical parameters of the lens assembly 14 based on the target optical parameters of the lens assembly 14.

[0086] The lens assembly 14 includes one or more lenses 14a, and the multiple lenses 14a extend along the optical axis of the light-emitting assembly 11. By designing the optical parameters of each lens 14a and the distance between the lenses 14a, the equivalent focal length of the headlight projection module 10 can be changed, thereby adjusting the distance between the projection pattern and the vehicle body.

[0087] The present disclosure does not specifically limit the type and function of the lens 14a, for example: a convex lens (converging light, shortening the focal length), a concave lens (diverging light, extending the focal length or correcting aberrations), an aspheric lens (eliminating spherical aberration, simplifying the structure of the lens assembly 14), a Fresnel lens (lightweight design, used for focusing or projection), etc.

[0088] In some embodiments, reference Figure 1 and Figure 2 As shown, the vehicle light projection module 10 further includes a heat dissipation component 15 , which is connected to the light emitting component 11 and the pattern switching component 12 respectively and is used to dissipate heat for the light emitting component 11 and the pattern switching component 12 .

[0089] The light-emitting component 11 acts as a light source and generates a certain amount of heat while emitting light. Due to the setting of the driving element and the irradiation of light, the surface temperature of the pattern switching component 12 will increase. Therefore, the heat dissipation component 15 is connected to the light-emitting component 11 and the pattern switching component 12 respectively, which can timely discharge the heat in the light-emitting component 11 and the pattern switching component 12 area, thereby ensuring the stability of the light-emitting component 11 and the pattern switching component 12.

[0090] The present disclosure does not specifically limit the specific type and working principle of the heat dissipation component 15. Exemplarily, the heat dissipation component 15 adopts a passive heat dissipation solution, such as: an aluminum substrate, heat dissipation fins and heat pipes; another exemplary embodiment, the heat dissipation component 15 adopts an active heat dissipation solution, such as: fan blowing, semiconductor refrigeration plate and liquid cooling system.

[0091] In some embodiments, reference Figure 7 As shown, the projection method of the vehicle light projection system disclosed in the present invention is as follows:

[0092] Step 701: Receive a parameter signal related to the current state of the vehicle sent by a vehicle body controller.

[0093] The relevant parameter signals of the vehicle's current state include at least one of the vehicle positioning parameters, vehicle driving scene parameters and in-vehicle large-screen command parameters; the vehicle positioning parameters can be determined by the vehicle's positioning system, the vehicle driving scene parameters can be collected and determined by vehicle cameras, radars and other devices, and the in-vehicle large-screen command parameters can be actively input by passengers using the in-vehicle terminal.

[0094] Step 702 : Based on the relevant parameter signal, determine the operating parameters of the light emitting component 11 and the target projection pattern of the pattern switching component 12 in the corresponding vehicle light projection module.

[0095] Different types of related parameter signals can be brought into a preset weighted average formula to obtain the target projection pattern of the vehicle, and then the working parameters of the light-emitting component 11 and the target projection pattern of the pattern switching component 12 corresponding to the target projection pattern can be determined based on the table lookup.

[0096] Step 703 : Adjust the working state of the light emitting component 11 based on the working parameters of the light emitting component 11 .

[0097] The working state of the light emitting component 11 includes light color, light intensity and flashing frequency.

[0098] Step 704 : Based on the target projection pattern of the pattern switching element 12 , drive the target projection pattern to move to the light emitting path of the light emitting component 11 .

[0099] In some embodiments, the vehicle light projection module 10 further includes a lens assembly 14 , and the projection method of the vehicle light projection system disclosed herein further includes:

[0100] Step 705 : determining target optical parameters of the lens assembly 14 in the corresponding vehicle light projection module 10 based on the relevant parameter signal.

[0101] Different types of related parameter signals can be brought into a preset weighted average formula to obtain a target projection pattern of the vehicle, and then the target optical parameters of the lens assembly 14 corresponding to the target projection pattern can be determined based on a table lookup.

[0102] Step 706: Adjust the actual optical parameters of the lens assembly based on the target optical parameters of the lens assembly.

[0103] It should be understood that various parts of the present disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented using software or firmware stored in a storage module and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement the hardware: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0104] Based on the same concept, an embodiment of the present disclosure further provides a vehicle, which may include a vehicle light projection system as described in any one of the above embodiments.

[0105] The present disclosure does not specifically limit the type of vehicle, for example, sedans, buses, trucks, sport utility vehicles (SUVs), etc. The vehicle can be a fuel vehicle, a pure electric vehicle (Blade Electric Vehicles, referred to as BEV, or EV), or a hybrid electric vehicle (Hybrid Electric Vehicle, referred to as HEV), such as extended-range type, plug-in type, etc.

[0106] In the embodiments of this disclosure, the vehicle information (including but not limited to vehicle positioning information, vehicle driving scene information, etc.) and data (including but not limited to data used for analysis, storage, and display, etc.) involved in this disclosure are all information and data authorized by the user or fully authorized by all parties, and the collection, use, and processing of relevant data must comply with the relevant laws, regulations, and standards of the relevant countries and regions. For example, user behaviors such as interactive operations involved in this disclosure are obtained with full authorization.

[0107] It is understandable that the vehicle light projection system provided by the embodiment of the present disclosure includes hardware structures and / or software modules corresponding to the execution of each function in order to realize the above functions. In combination with the units and algorithm steps of each example disclosed in the embodiment of the present disclosure, the embodiment of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to realize the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of the embodiment of the present disclosure.

[0108] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are mutually inconsistent.

[0109] It is understood that in this disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of related objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0110] It will be further understood that the terms "first," "second," and the like are used to describe various types of information, but such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another and do not indicate a particular order or level of importance. In fact, the terms "first," "second," and the like are fully interchangeable. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information without departing from the scope of this disclosure.

[0111] It can be further understood that the terms "center", "longitudinal", "lateral", "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation.

[0112] It is further understood that, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed connections, detachable connections, or integral molding; they may refer to mechanical connections, electrical connections, or communication between them; they may refer to direct connections without any other components between them, or indirect connections through an intermediary; they may refer to internal communication between two elements, or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0113] It is further understood that although operations are described in a particular order in the drawings in the embodiments of the present disclosure, this should not be construed as requiring that the operations be performed in the particular order shown or in a serial order, or that all of the operations shown be performed to obtain the desired results. In certain circumstances, multitasking and parallel processing may be advantageous.

[0114] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the solutions disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present disclosure are indicated by the claims.

[0115] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims

1. A vehicle light projection system, characterized in that: The vehicle light projection system is located inside the vehicle body and is connected to the vehicle body. The vehicle light projection system comprises a vehicle light projection device (1) and a vehicle light control device (2); The vehicle light projection device (1) comprises at least one vehicle light projection module (10), each vehicle light projection module (10) comprising a light emitting component (11) and a pattern switching element (12), the pattern switching element (12) comprising at least one projection pattern, and a partial area of ​​the pattern switching element (12) being located on a light emitting path of the light emitting component (11); The vehicle light control device (2) is used to: receive a parameter signal related to the current state of the vehicle sent by a vehicle body controller and, based on the parameter signal, determine the operating parameters of the light-emitting component (11) in the corresponding vehicle light projection module (10) and the target projection pattern of the pattern switching component (12); adjust the operating state of the light-emitting component (11) based on the operating parameters of the light-emitting component (11); and drive the target projection pattern to move to the light output path of the light-emitting component (11) based on the target projection pattern of the pattern switching component (12).

2. The vehicle light projection system according to claim 1, characterized in that: The vehicle light projection module (10) further comprises a collimator (13), wherein the collimator (13) is located between the light-emitting component (11) and the pattern switching component (12).

3. The vehicle light projection system according to claim 1, characterized in that: The vehicle light projection module (10) further comprises a lens assembly (14), wherein the lens assembly (14) is located on a side of the pattern switching component (12) away from the light emitting assembly (11); The vehicle light control device (2) is further used to: determine the target optical parameters of the lens assembly (14) in the corresponding vehicle light projection module (10) based on the relevant parameter signal; and adjust the actual optical parameters of the lens assembly (14) based on the target optical parameters of the lens assembly (14).

4. The vehicle light projection system according to claim 1, characterized in that: The vehicle light projection module (10) further comprises a heat dissipation component (15), wherein the heat dissipation component (15) is respectively connected to the light emitting component (11) and the pattern switching component (12), and is used to dissipate heat from the light emitting component (11) and the pattern switching component (12).

5. The vehicle light projection system according to claim 1, characterized in that: The relevant parameter signal of the current state of the vehicle includes at least one of vehicle positioning parameters, vehicle driving scene parameters and in-vehicle large screen instruction parameters.

6. The vehicle light projection system according to claim 1, characterized in that: The light-emitting assembly (11) comprises a housing (111), an LED lamp (112), and a circuit board (113); the LED lamp (112) and the circuit board (113) are both located in the housing (111); the LED lamp (112) is electrically connected to the circuit board (113); and the circuit board (113) is electrically connected to the vehicle light control device (2).

7. The vehicle light projection system according to claim 1, characterized in that: The vehicle light projection system is detachably connected to the vehicle body, and the vehicle light control device (2) is wirelessly connected to the vehicle body controller.

8. The vehicle light projection system according to claim 1, characterized in that: The pattern switching element (12) is a rotating wheel element, and the rotating axis of the rotating wheel element is parallel to the extension direction of the optical axis of the light-emitting component (11).

9. The vehicle light projection system according to claim 1, characterized in that: The projection pattern includes at least one of a straight-ahead arrow, a left-turn arrow, a right-turn arrow, a crosswalk line, and a vehicle-width rectangle.

10. A vehicle, characterized in that: The vehicle comprises the vehicle light projection system according to any one of claims 1 to 9.

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