Vehicle driving intention indication method and device, vehicle and equipment

Abstract

The application discloses a vehicle driving intention indication method and device, a vehicle and equipment. The method comprises the following steps: acquiring a driving intention scene of a vehicle; determining a light prompt mode according to the driving intention scene; controlling a prompt light source group arranged on a side surface of a vehicle body and a prompt light of an outside rearview mirror to perform light output in the light prompt mode, so as to transmit the driving intention of the vehicle to a traffic participant outside the vehicle. Through the above method, the driving intention of the vehicle can be accurately transmitted, and the safety of road traffic interaction is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle control technology, and in particular to a method, device, vehicle, and equipment for indicating vehicle driving intention. Background Technology

[0002] Traditional driving intention prompting solutions mainly fall into two categories: one integrates blue LED indicator lights into the exterior rearview mirror housing, which remain constantly lit when autonomous driving is activated and flash when changing lanes; the other installs ring-shaped or strip-shaped blue indicator lights on the roof to provide 360-degree illumination. However, existing solutions have significant technical flaws: the blue lights on the exterior rearview mirrors have blind spots in low-lying areas on the sides, making them difficult for pedestrians and cyclists close to the vehicle to see, and the simple flashing cannot distinguish the direction of lane changes; the roof-mounted blue lights are installed too high, requiring people at close range to look up to observe them, and are easily obstructed by roadside trees. At the same time, the external light cover disrupts the overall streamlined design of the vehicle, increasing wind resistance and wind noise.

[0003] In addition, traditional lighting prompts can only achieve static on / off or fixed-frequency flashing, which cannot match the differentiated prompts for different scenarios such as vehicle speed, acceleration, deceleration, parking, lane changing, and emergency braking. External traffic participants cannot intuitively predict the vehicle's driving direction, which can easily lead to traffic safety accidents such as scratches and collisions.

[0004] Therefore, how to achieve 360-degree blind-spot-free lighting coverage, dynamically and intuitively express the vehicle's driving intentions, and eliminate side blind spots has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] The purpose of this application is to provide a method, device, vehicle and equipment for indicating vehicle driving intention, which uses a three-dimensional linkage between the optical fiber light source on the side of the vehicle body and the indicator light on the exterior rearview mirror to match dynamic lighting effects in multiple scenarios, accurately convey the vehicle driving intention, and improve the safety of road traffic interaction.

[0006] To achieve the above objectives: In a first aspect, embodiments of this application provide a method for indicating vehicle driving intent, comprising: acquiring a driving intent scenario of the vehicle; determining a lighting prompt mode based on the driving intent scenario; and controlling a group of prompt light sources disposed on the side of the vehicle body and a prompt light on the exterior rearview mirror to output light in the lighting prompt mode, so as to convey the vehicle's driving intent to traffic participants outside the vehicle.

[0007] In one embodiment, before acquiring the driving intention scenario of the vehicle, the method further includes: acquiring at least one of the vehicle's motion vector information, turn signal, lane change intention, automatic emergency braking signal, and electronic stability control signal through at least one of the intelligent driving domain controller, body domain controller, vehicle speed sensor, acceleration sensor, steering sensor, and braking sensor.

[0008] In one embodiment, the acquisition of the vehicle's driving intention scenario includes at least one of the following: when the vehicle speed is stable within a preset speed range, the driving intention scenario is determined to be a constant speed cruising scenario; when the acceleration is greater than a preset acceleration threshold and / or the vehicle is in a starting state, the driving intention scenario is determined to be an acceleration driving scenario; when the acceleration is less than a preset deceleration threshold and / or the vehicle's braking is triggered, the driving intention scenario is determined to be a deceleration driving scenario; when the vehicle speed is zero and a preset parking time is maintained, and / or the vehicle's automatic parking function is activated, the driving intention scenario is determined to be a parking waiting scenario; when a lane change command is received, and / or the turn signal is activated and the current driving path contains a lane change trajectory, the driving intention scenario is determined to be a lane change preparation scenario; when the automatic emergency braking system and electronic stability control system are activated, and / or an impending collision is detected, the driving intention scenario is determined to be an emergency state scenario.

[0009] In one embodiment, determining the lighting prompt mode based on the driving intention scenario includes: determining the lighting prompt mode corresponding to the current driving intention scenario based on the mapping relationship between the driving intention scenario and the lighting prompt mode; wherein the mapping relationship includes: the lighting prompt mode corresponding to the constant speed cruising scenario is that the prompt light source group is continuously lit at a preset base brightness; the lighting prompt mode corresponding to the acceleration scenario is that the prompt light source group presents a back-to-forward diffused light flow effect; the lighting prompt mode corresponding to the deceleration scenario is that the prompt light source group presents a front-to-back contracted light flow effect; the lighting prompt mode corresponding to the parking waiting scenario is that the prompt light source group presents a breathing-like periodic brightness gradient effect; the lighting prompt mode corresponding to the lane change preparation scenario is that the prompt light source group on the same side as the lane change moves directionally, and the indicator light of the exterior rearview mirror flashes at a preset frequency; the lighting prompt mode corresponding to the emergency state scenario is that all light sources flash at a preset maximum brightness high frequency.

[0010] In one embodiment, the method further includes: when a single-sided light source malfunction, is blocked, or malfunctions, the brightness of the indicator light group on the normal side is increased, and / or the brightness of the indicator light on the same side exterior rearview mirror is increased, to provide a fault indication.

[0011] In one embodiment, the method further includes: when multiple driving intention scenarios are acquired simultaneously, determining, based on a preset priority, to output lights using the light prompt mode corresponding to the driving intention scenario with the highest priority among the multiple driving intention scenarios.

[0012] In one embodiment, the method further includes: when the driving intention scenario changes, controlling the light output of the prompt light source group to smoothly transition from the current light prompt mode to the light prompt mode corresponding to the changed driving intention scenario, wherein the smooth transition includes brightness cross-fade-in and fade-out and smooth conversion of flow direction.

[0013] Secondly, embodiments of this application provide a vehicle driving intention indication device, including: a driving scene acquisition module for acquiring the driving intention scene of the vehicle; a lighting mode determination module for determining a lighting prompt mode based on the driving intention scene; and a lighting output module for controlling the prompt light source group disposed on the side of the vehicle body and the prompt light of the exterior rearview mirror to output light in the lighting prompt mode, thereby conveying the vehicle's driving intention to traffic participants outside the vehicle.

[0014] Thirdly, embodiments of this application provide a vehicle, specifically including: processor; Memory used to store the processor's executable instructions; The processor is configured to execute the instructions for performing the vehicle driving intention indication method as described in the first aspect.

[0015] Fourthly, embodiments of this application provide an electronic device that stores a computer program, which, when the instructions in the electronic device are executed by the processor of a vehicle, enables the vehicle to implement the vehicle driving intention indication method as described in the first aspect.

[0016] This application provides a method, device, vehicle, and equipment for indicating vehicle driving intent, comprising: acquiring a driving intent scenario of the vehicle; determining a lighting prompt mode based on the driving intent scenario; and controlling a group of prompt light sources disposed on the side of the vehicle body and a prompt light on the exterior rearview mirror to output light in the lighting prompt mode to convey the vehicle's driving intent to road users outside the vehicle. Through the three-dimensional linkage of the fiber optic light source on the side of the vehicle body and the prompt light on the exterior rearview mirror, and matching dynamic lighting effects for multiple scenarios, the vehicle's driving intent is accurately conveyed, improving road traffic interaction safety. Attached Figure Description

[0017] Figure 1 This is a flowchart illustrating the vehicle driving intention indication method provided in an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the vehicle driving intention indication device provided in an embodiment of the present invention.

[0019] Figure 3 This is a structural schematic diagram of a vehicle provided in an embodiment of the present invention.

[0020] Processor 410, memory 411, network interface 412, bus system 413. Detailed Implementation

[0021] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0022] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, components, features, and elements with the same names in different embodiments of this application may have the same meaning or different meanings, the specific meaning of which must be determined by its interpretation in that specific embodiment or further in conjunction with the context of that specific embodiment.

[0023] It should be understood that although the terms first, second, third, etc., may be used herein to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this document, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if," as used herein, can be interpreted as "when," "when," or "in response to determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms "comprising," "including," indicate the presence of the stated feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" as used herein are to be interpreted as inclusive, or mean any one or any combination thereof. Therefore, "A, B, or C" or "A, B, and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A, B, and C". Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0024] It should be understood that although the steps in the flowcharts of this application's embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least a portion of the sub-steps or stages of other steps.

[0025] It should be noted that step designations such as S101 and S102 are used in this document for the purpose of more clearly and concisely describing the corresponding content, and do not constitute a substantial limitation on the order. In specific implementation, those skilled in the art may execute S102 first and then S101, etc., but these should all be within the protection scope of this application.

[0026] It should be noted that in this invention, omnidirectional optical fiber, side-mounted indicator light source group, and side light strip are equivalent descriptions of the same technical feature; wherein, omnidirectional optical fiber is the definition of the core light-emitting substrate structure, indicator light source group is the name of the overall hardware module, and side light strip is a simplified abbreviation for the continuous light-emitting structure on the side of the vehicle body. All three specifically refer to a blue continuous light-emitting component that is pre-embedded and arranged inside the wheel arch trim and side skirt, arranged along the side contour of the vehicle body, and capable of outputting dynamic light effects. In the technical solution of this invention, they have completely equivalent meanings and are not limited by different technical features. They can be used interchangeably throughout this application.

[0027] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0028] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, "module," "part," or "unit" may be used interchangeably.

[0029] It should be noted that currently, vehicle external lights (such as brake lights and turn signals) mainly convey the vehicle's explicit driving actions or status. This is a passive, directly triggered form of information expression and cannot fully express deeper driving intentions such as driving intent, acceleration and deceleration status, lane change planning, and emergency avoidance in autonomous driving mode.

[0030] To address the aforementioned issues, this application proposes a vehicle driving intention indication method, applicable to passenger cars and commercial vehicles equipped with an intelligent driving perception system, an intelligent driving domain controller (ADCU), and a body domain controller (BCM). The core method relies on omnidirectional optical fibers to construct a continuous light strip on the side of the vehicle body, which is linked with the indicator lights on the exterior rearview mirrors to achieve omnidirectional visual indication of driving intention.

[0031] like Figure 1 As shown, this application embodiment proposes a vehicle driving intention indication method. This method can be implemented using software and / or hardware, such as an intelligent driving perception system. In this embodiment, the method is applied to a vehicle integrated with an intelligent driving perception system. The vehicle can eliminate blind spots in low-lying areas on the sides of the vehicle through continuous light strips on the sides and indicator lights on the exterior rearview mirrors, achieving 360-degree visibility. This application embodiment provides a vehicle driving intention indication method, including the following steps: Step S101: Obtain the driving intention scenario of the vehicle.

[0032] Optionally, a driving intent scenario refers to a discretized scenario category that represents the vehicle's current driving condition, operational intent, and risk level, obtained by logical semantic abstraction based on the vehicle's original state information.

[0033] In one embodiment, before obtaining the vehicle's driving intention scenario, the method further includes: The system acquires at least one of the following: vehicle motion vector information, turn signal, lane change intention, automatic emergency braking signal, and electronic stability control signal, through at least one of the following: intelligent driving domain controller, body domain controller, vehicle speed sensor, acceleration sensor, steering sensor, and braking sensor.

[0034] Understandably, vehicle motion vector information includes parameters such as real-time vehicle speed, acceleration, deceleration, driving posture, and starting and stationary states.

[0035] It is understandable that turn signal signals include the activation status of the vehicle's left and right turn signals, the working status of the lighting system, etc.

[0036] It is understandable that lane change intentions include autonomous driving lane change commands, path planning trajectories, and manual driving control commands.

[0037] It is understandable that automatic emergency braking signals and electronic stability control signals include the operating status of the automatic emergency braking system, the intervention status of the electronic stability control system, and the collision risk detection results.

[0038] Optionally, the Advanced Driver Controller Unit (ADCU) is used to output the autonomous driving mode status, lane change preparation instructions, driving path planning information, and active safety system trigger signals; the Body Controller Unit (BCM) is used to collect turn signal, brake signal, and automatic parking status; the vehicle speed sensor and acceleration sensor output the real-time vehicle speed, acceleration, and deceleration values; the steering sensor collects the steering wheel angle and lane change control intention; and the brake sensor collects the brake pedal trigger status.

[0039] Optionally, the data from the aforementioned controllers and sensors are aligned in time and space, exchanged, and aggregated via CAN bus or vehicle Ethernet to form a unified vehicle status dataset, providing a complete and reliable input foundation for subsequent driving intent scene recognition.

[0040] The above implementation method reuses the vehicle's existing intelligent driving domain, body domain, and standard sensor hardware, eliminating the need for additional sensing equipment. It can complete multi-source data acquisition based on the vehicle's existing communication architecture. It can acquire real-time vehicle motion parameters and simultaneously acquire upper-level driving decision intentions and lower-level safety system intervention status, enabling early prediction of vehicle driving trends and potential dangers. At the same time, the data acquisition and interaction cycle is short and the latency is low, allowing it to follow changes in vehicle operating conditions in real time and meet the real-time requirements of external light prompts. It has a high hardware reuse rate and low deployment cost, which is conducive to large-scale application in mass-produced models.

[0041] In one embodiment, step S101, namely obtaining the driving intention scenario of the vehicle, includes at least one of the following: When the vehicle speed is stable within the preset speed range, the driving intention scenario is determined to be a constant speed cruise scenario; when the acceleration is greater than the preset acceleration threshold and / or the vehicle is in a starting state, the driving intention scenario is determined to be an acceleration driving scenario; when the acceleration is less than the preset deceleration threshold and / or the vehicle's braking is triggered, the driving intention scenario is determined to be a deceleration driving scenario; when the vehicle speed is zero and the preset parking time is maintained, and / or the vehicle's automatic parking function is activated, the driving intention scenario is determined to be a parking waiting scenario; when a lane change command is received, and / or the turn signal is activated and the current driving path includes a lane change trajectory, the driving intention scenario is determined to be a lane change preparation scenario; when the automatic emergency braking system and electronic stability control system are activated, and / or an impending collision is detected, the driving intention scenario is determined to be an emergency state scenario.

[0042] In the above implementation, each type of driving intention scenario is determined using quantifiable thresholds and state conditions. This eliminates the need for complex machine learning algorithms, resulting in simple logic, low computational overhead, and ease of vehicle calibration and subsequent debugging and optimization. The scenario classification covers all driving conditions, including normal driving, operating condition switching, control intention, and emergency avoidance, fully matching the core needs of external interaction under both autonomous and manual driving. This enables the vehicle to convey its true driving intention to traffic participants outside the vehicle in all aspects.

[0043] Step S102: Determine the light prompt mode based on the driving intention scenario.

[0044] Optionally, the lighting prompt mode refers to a lighting expression form with exclusive dynamic lighting effects, presented by the side prompt light source group of the vehicle body and the prompt light of the exterior rearview mirror. Each lighting prompt mode corresponds to a type of driving intention scenario and is used to intuitively convey the vehicle's operating status and operating intention to pedestrians, non-motorized vehicle riders, and surrounding vehicles.

[0045] Optionally, the lighting indication mode is characterized by one or more of the following lighting parameters: constant brightness, dynamic flow direction, flow speed, breathing gradient amplitude, flashing frequency, light illumination duty cycle, light source zone linkage logic, etc.; the lights uniformly use a dedicated blue indication light source, which is distinguished from the vehicle's original red brake lights and yellow turn signals, so as not to interfere with each other and improve visibility.

[0046] Optionally, the lighting warning modes follow the intuitive laws of human visual cognition and traffic interaction: static constant light or soft breathing light effect is used in stable operating conditions, directional flowing light effect is used for acceleration and deceleration, zoned directional flowing light effect + high frequency flashing is used for lane changing, and high frequency strobe light is used for emergency situations, so as to achieve a positive match between the risk level of the operating condition and the intensity of the light effect warning.

[0047] In one embodiment, step 102, namely determining the lighting prompt mode based on the driving intention scenario, includes: Based on the mapping relationship between driving intention scenarios and lighting prompt modes, the lighting prompt mode corresponding to the current driving intention scenario is determined. This mapping relationship includes: for constant speed cruising scenarios, the lighting prompt mode is a continuous, preset base brightness for the prompt light source group; for accelerating scenarios, the lighting prompt mode is a forward-spreading light flow effect for the prompt light source group; for decelerating scenarios, the lighting prompt mode is a backward-contracting light flow effect for the prompt light source group; for waiting scenarios, the lighting prompt mode is a breathing-like, periodic brightness gradient effect for the prompt light source group; for lane change preparation scenarios, the lighting prompt mode is a directional flow of the prompt light source group on the same side as the lane change, and the indicator lights on the exterior rearview mirror flash at a preset frequency; and for emergency scenarios, all light sources flash at a preset maximum brightness with high-frequency intensity.

[0048] Optionally, in one specific embodiment, the system predefines six types of lighting parameters and stores them in the vehicle lighting configuration table to establish a fixed mapping relationship between driving intention scenarios and lighting prompt modes, as shown in Table 1 below:

[0049] Table 1 In the above implementation, by establishing a fixed mapping relationship between driving intentions and dynamic lighting effects, external traffic participants do not need special training. They can intuitively judge the vehicle's intentions such as acceleration / deceleration, stopping, lane changing, and emergency avoidance simply by observing the direction of the light strip's flow, flashing frequency, and changes in brightness. The interactive semantics are intuitive and the cognitive cost is extremely low. At the same time, the lighting intensity is designed according to the gradient of the hazard level of the working condition, from stable constant light to directional flow, and then to high-frequency flashing, gradually increasing the warning intensity, making it easier for people around to predict the vehicle's movement and avoid it in advance. The lights rely on optical fibers to form a continuous side light strip, which has strong resistance to backlight, rain, fog, and obstruction interference, and can still be clearly identified in complex road conditions. The overall control logic is mainly based on lookup tables and conditional judgments, which has low requirements for onboard computing power and can be directly integrated into the existing vehicle domain controller. Only the addition of side optical fiber light groups is needed for rapid mass production and installation, which has strong compatibility and feasibility. At the same time, it is compatible with both manual driving and full-level autonomous driving conditions, making up for the shortcomings of autonomous vehicles in expressing external intentions and improving the overall interactive safety of road traffic.

[0050] Step S103: Control the indicator light group set on the side of the vehicle body and the indicator light of the exterior rearview mirror to output light in the light indicator mode to convey the vehicle's driving intention to traffic participants outside the vehicle.

[0051] Optionally, the side-mounted indicator lights utilize an omnidirectional fiber optic structure, pre-embedded within the wheel arch trim and side skirts to form a continuous blue light strip distributed along the side profile of the vehicle. The exterior rearview mirror indicator lights are integrated into the left and right exterior rearview mirror housings, forming a three-dimensional indicator network with the side light strip, independent of the vehicle's existing brake lights, turn signals, and position lights. It can be understood that the existing headlights are responsible for indicating the vehicle's legal driving status, while the side-mounted and rearview mirror indicator lights are responsible for external interactive prompts regarding intelligent driving intentions and driving conditions.

[0052] In one embodiment, it further includes: When a single-sided light source malfunction, is blocked, or fails to function, the brightness of the indicator light group on the normal side is increased, and / or the brightness of the indicator light on the same side exterior rearview mirror is increased to provide a fault indication.

[0053] Optionally, the working status of the single-sided light source, optical fiber link, and exterior rearview mirror indicator light on the vehicle side can be monitored in real time. When a single-sided light source malfunctions, is blocked, or fails, the brightness of the indicator light group on the normal side is automatically increased, and / or the brightness of the indicator light on the exterior rearview mirror on the same side is increased to provide lighting compensation and prompts. At the same time, a lighting system malfunction reminder is pushed to the driver inside the vehicle.

[0054] The above implementation has self-diagnosis and fault redundancy compensation capabilities. When one side of the light fails, the brightness of the other side of the light can be enhanced to maintain the external prompting effect. The intentional interaction function will not be lost due to a single point of failure, and the system's working stability and robustness are greatly improved.

[0055] In one embodiment, it further includes: When multiple driving intention scenarios are acquired simultaneously, the light output is determined according to the preset priority, using the light prompt mode corresponding to the driving intention scenario with the highest priority among the multiple driving intention scenarios.

[0056] Optionally, among the above six road condition scenarios, the priority from high to low is as follows: emergency situation scenario, lane change preparation scenario, deceleration scenario, acceleration scenario, stopping and waiting scenario, and constant speed cruise scenario.

[0057] In the above implementation, when a vehicle triggers multiple operating conditions simultaneously, the system automatically prioritizes the lighting mode of the scene with the highest danger level, avoiding visual confusion for people outside the vehicle caused by the simultaneous output of multiple dynamic lighting effects, ensuring that emergency and high-risk intentions can be transmitted to the outside in a priority and conspicuous manner, and greatly improving the reliability of safety warnings under complex traffic conditions.

[0058] In one embodiment, it further includes: When the driving intent scenario changes, the light output of the control prompt light source group smoothly transitions from the current light prompt mode to the light prompt mode corresponding to the changed driving intent scenario. The smooth transition includes brightness cross-fade-in and fade-out and smooth conversion of flow direction.

[0059] Optionally, when switching between non-emergency driving intention scenarios, a gradual transition of 200ms to 500ms is used, with a smooth transition through linear brightness changes and a smooth switching of the light band's flow direction, avoiding the visual abruptness caused by sudden changes in light. When switching to an emergency scenario, a smooth transition is not required; the current light effect is immediately interrupted, and a high-frequency flashing mode with maximum brightness is instantly switched to ensure immediate warning of emergency risks. When returning from an emergency scenario to a normal scenario, a short-term gradual decrease in brightness is used to weaken the strong light stimulation, balancing warning effectiveness and visual comfort.

[0060] In the above implementation, the smooth and natural transition between daily operating conditions enhances the visual friendliness of road traffic; the instantaneous response in emergency situations ensures timely warning of danger, achieving a balance between driving experience, external interaction experience, and active safety protection.

[0061] Furthermore, when providing light prompts, the vehicle's original headlight assembly is kept separate from the prompt light source assembly to ensure that the blue light source from the side lights and exterior rearview mirrors can be displayed simultaneously without interfering with the red and yellow light sources from the original headlight assembly, with clear color distinction to avoid visual confusion.

[0062] In summary, the above implementation method, by fusing vehicle status data with the vehicle's multi-domain controller and sensors, identifies various driving intention scenarios, matches exclusive dynamic lighting effects, and relies on the three-dimensional linkage output of the omnidirectional optical fiber light strip on the side of the vehicle and the indicator lights on the exterior rearview mirrors, eliminates blind spots on the side of the vehicle. It can intuitively and promptly convey driving intentions such as acceleration / deceleration, stopping, lane changing, and emergency avoidance to pedestrians, non-motorized vehicles, and surrounding vehicles, significantly reducing scratches and collisions caused by opaque intentions, and comprehensively improving the external interaction capabilities and road driving safety of intelligent driving vehicles.

[0063] Based on the same methodological concept as the foregoing embodiments, the foregoing embodiments will be described in detail below through a specific example.

[0064] This application's specific embodiments aim to construct a vehicle driving intention omnidirectional optical language indication system based on an intelligent driving multi-domain controller and omnidirectional optical fibers. The following will provide a detailed description of the system architecture, working principle, key modules, and interaction flow, and will also illustrate the core content that should be shown in the accompanying drawings.

[0065] I. System Overall Architecture This system is primarily deployed in vehicles equipped with intelligent driving hardware (i.e., the aforementioned "this vehicle"), and is an in-vehicle embedded intelligent interaction system integrating vehicle status acquisition, driving intention recognition, lighting strategy decision-making, and omnidirectional light effect output. Its overall architecture can be divided into three layers: The perception layer consists of the vehicle's existing intelligent driving domain controller, body domain controller, and standard vehicle speed sensor, acceleration sensor, steering sensor, and braking sensor. Each controller and sensor continuously collects raw data such as vehicle motion vectors, control commands, lane change intentions, and the intervention status of active safety systems. Specifically, it executes step S101 described above to collect raw state information related to vehicle operation and control. Further, it fuses vehicle motion vector information, turn signal signals, lane change intentions, automatic emergency braking signals, and electronic stability control signals through the intelligent driving domain controller, body domain controller, vehicle speed sensor, acceleration sensor, steering sensor, and braking sensor.

[0066] Decision and Control Layer: This is the core processing unit of the system, integrated within the vehicle intelligent driving domain controller or body domain controller. It receives vehicle status data uploaded from the perception layer, runs the driving intent scene recognition algorithm, lighting strategy mapping logic, multi-scene priority arbitration, smooth transition of lighting effects, and fault compensation logic of this invention, and outputs corresponding lighting control commands. That is, it executes step S102 described above, determines the driving intent scene based on the original vehicle status information, and determines the corresponding lighting prompt mode according to the driving intent scene matching.

[0067] Execution layer: This consists of dedicated lighting output hardware, including omnidirectional fiber optic indicator light groups embedded in the sides of the vehicle body, left and right exterior rearview mirror indicator lights, and matching lighting drive circuits. The fiber optics are embedded in the wheel arch trim and side skirts, forming a continuous blue light strip on the vehicle body. This strip receives control commands and displays differentiated dynamic lighting effects. Specifically, by executing step S103 as described above, the vehicle body side indicator light groups and exterior rearview mirror indicator lights are controlled to output light in corresponding lighting indication modes, conveying the vehicle's driving intentions to pedestrians, non-motorized vehicles, and surrounding vehicles.

[0068] The information flow of the entire system is as follows: from physical information of vehicle motion and control to data acquisition from multiple controllers / sensors to driver intent scene recognition and strategy decision-making to the issuance of lighting control signals to dynamic lighting effect output to visual perception and behavior prediction of traffic participants outside the vehicle.

[0069] II. Detailed Description of Core Module Functions 1. Vehicle Status Acquisition and Driving Intent Recognition Module Function: Real-time aggregation of multi-source data from the entire vehicle, identification of the vehicle's current driving conditions and driving intentions through preset rule logic, and division of standardized scene codes.

[0070] Inputs: Autonomous driving status, lane change intention, and path planning data issued by the intelligent driving domain; turn signal, braking, and automatic parking status collected by the vehicle body domain; motion parameters such as vehicle speed, acceleration, and deceleration output by sensors; and intervention status signals of AEB automatic emergency braking and ESC electronic stability control system.

[0071] Processing and Output: Standardized scenario codes are output through quantifiable thresholds and state determination logic. Specifically, when the vehicle speed is stable within a preset speed range, the driving intention scenario is determined to be a constant speed cruise scenario; when the acceleration is greater than a preset acceleration threshold and / or the vehicle is in a starting state, the driving intention scenario is determined to be an acceleration scenario; when the acceleration is less than a preset deceleration threshold and / or the vehicle's braking is triggered, the driving intention scenario is determined to be a deceleration scenario; when the vehicle speed is zero and the vehicle remains stationary for a preset duration and / or the vehicle's automatic parking function is activated, the driving intention scenario is determined to be a parking waiting scenario; when a lane change command is received and / or the turn signal is activated and the current driving path includes a lane change trajectory, the driving intention scenario is determined to be a lane change preparation scenario; when the automatic emergency braking system and electronic stability control system are activated and / or an impending collision is detected, the driving intention scenario is determined to be an emergency situation scenario.

[0072] 2. Lighting Strategy Mapping and Decision Module Function: Establishes a one-to-one mapping relationship between driving intention scenario coding and dynamic lighting prompt mode, and performs multi-scenario priority arbitration, smooth transition of lighting effect, and fault adaptive compensation decision-making.

[0073] Mapping Strategy: Based on human visual intuition and risk level gradients, a unique dynamic blue light effect encoding is designed. Specifically: For constant speed cruising scenarios, the light indicator light group remains constantly lit at a preset base brightness; for accelerating scenarios, the light indicator light group presents a diffused light flow effect from back to front; for decelerating scenarios, the light indicator light group presents a contracted light flow effect from front to back; for parking and waiting scenarios, the light indicator light group presents a breathing-like periodic brightness gradient effect; for lane change preparation scenarios, the light indicator light group on the same side as the lane change moves directionally, and the indicator lights on the exterior rearview mirror flash at a preset frequency; for emergency scenarios, all light sources flash at a preset maximum brightness with high-frequency intensity.

[0074] Decision logic: In non-emergency scenarios, brightness fade-in and fade-out and smooth flow direction transition are enabled. In emergency scenarios, instantaneous flashing is performed without transition and is set to the highest priority. At the same time, the system monitors the lighting hardware for faults and obstruction status in real time. If one side fails, the system automatically increases the brightness of the normal side lights to compensate and pushes a fault alert to the driver.

[0075] 3. Fiber Optic Light Driver and Display Module Function: Receives control commands from the decision module and drives the omnidirectional optical fiber strip on the body and the indicator lights on the exterior rearview mirror to accurately reproduce various static and dynamic lighting effects.

[0076] Hardware components include a lighting driver MCU, a constant current drive circuit, a high-brightness blue LED light source, an omnidirectional optical fiber light strip embedded in the vehicle body, and an integrated blue light module in the exterior rearview mirrors. The optical fiber utilizes total internal reflection to transform point light sources into continuous, uniform light strips along the sides of the vehicle, covering both high and low field of vision.

[0077] Control implementation: The MCU precisely controls the LED brightness, lighting duration, flashing frequency and light strip flow sequence through PWM pulse width modulation signal to realize all preset light effect modes such as constant light, breathing gradient, directional flow, high and low frequency flashing, and adapt to complex driving environments such as rain, fog, backlight, and night.

[0078] III. System Workflow and Timing The main process is a complete loop from sensing to light output: Start: The system powers on and performs a self-test. The intelligent driving domain, body domain, and lighting drive modules complete the overall self-test and initialization.

[0079] Data Acquisition: Continuously monitor the status, intent, and safety system data of the vehicle controller and sensors via CAN bus / vehicle Ethernet.

[0080] Scene determination: Run the scene determination algorithm to match the current working condition to one of the six types of driving intention scenarios and output the scene code.

[0081] Strategy Mapping: Query the preset light mapping configuration table and match the target light cues mode parameters corresponding to the current scene.

[0082] Decision output: Perform multi-scene priority judgment, light effect transition mode judgment, and light fault status detection to generate final control command.

[0083] Drive execution: Converts control commands into PWM dimming parameters, driving the optical fiber light strip and the rearview mirror indicator lights to output corresponding light effects.

[0084] Loop: Return to step 2 and continue running (the loop period can be set to 50-100ms).

[0085] Time series diagrams can highlight signal changes under specific events, such as "emergency scenarios": At time T0: The system detects an obstacle ahead, and the AEB (Automatic Emergency Braking) system is triggered.

[0086] T0+Δt1 (approximately 50ms): The scene recognition module outputs the emergency state scene code.

[0087] T0+Δt2 (approximately 100ms): The decision output module determines it to be the highest priority, immediately interrupts all current lighting effects, and issues a high-frequency strong bright flashing command.

[0088] T0+Δt3 (approximately 150ms): The drive execution module controls the optical fiber light strips on both sides of the vehicle body and the indicator lights on the left and right exterior rearview mirrors to instantly reach maximum brightness and flash synchronously at a high frequency of 12Hz.

[0089] External traffic participants: Within approximately 200-300ms after T0+Δt3 (considering light propagation and human reaction), if they simultaneously observe a high-frequency blue light flashing from all directions around the vehicle, they should immediately recognize that the vehicle has entered an emergency avoidance state and take timely evasive action to avoid the risk of collision.

[0090] IV. Examples of Specific Implementation Methods Taking the "lane change preparation scenario" as an example, the details of system linkage are explained: Perception trigger: The intelligent driving domain controller issues a left lane change preparation command, the vehicle's left turn signal is activated simultaneously, and the system path planning identifies a driving trajectory that includes a left lane change; the vehicle speed and acceleration are normal, and there are no deceleration or emergency braking trigger conditions.

[0091] Scene recognition: The scene recognition module integrates lane change instructions, turn signal status, and driving path planning information to exclude other low-priority scenes and accurately determine that the current scene is a lane change preparation scene.

[0092] Lighting Decision: The strategy mapping module matches the lane change-specific lighting effect mode, triggering the directional flow of the optical fiber light strip on the left side of the vehicle body, the high-frequency flashing of the indicator light on the left side rearview mirror, and the basic constant illumination of the light strip on the right side as a contrast.

[0093] Lighting Design: The fiber optic light strip on the left side of the vehicle flows smoothly and directionally from front to back, with a speed matching that of a typical lane change. The blue light on the left side mirror flashes at a high frequency of 8-10Hz, creating a dynamic, three-dimensional visual cue from the side. The combination of flowing light effects and high-frequency flashing creates a strong visual impact, allowing pedestrians, non-motorized vehicles, and vehicles in adjacent lanes to clearly see the vehicle's intention to change lanes to the left and slow down in advance to avoid it.

[0094] System Reset: After the vehicle completes the lane change operation and the system exits the lane change planning path, the intent recognition module automatically switches to the constant speed cruise scene, and the lighting effect smoothly transitions back to the basic constant light mode without abrupt changes in lighting, maintaining visual friendliness for road traffic.

[0095] Through the above modular and process-oriented design, this invention realizes a fully automatic closed loop from the bottom-level state perception and upper-level intention recognition to omnidirectional dynamic lighting prompts, eliminating blind spots on the side of the vehicle body, intuitively conveying the vehicle's driving and control intentions, and providing a reliable technical implementation solution for high-level autonomous driving vehicles and human-vehicle-road collaborative interaction.

[0096] Based on the same inventive concept as the foregoing embodiments, this invention provides a vehicle driving intention indication device, see below. Figure 2 The device includes: The driving scenario acquisition module 21 is used to determine the driving intention scenario of the vehicle; The lighting mode determination module 22 is used to determine the lighting prompt mode according to the driving intention scenario; The lighting output module 23 is used to control the indicator light group set on the side of the vehicle body and the indicator light of the exterior rearview mirror to output light in a lighting indicator mode in order to convey the vehicle's driving intention to traffic participants outside the vehicle.

[0097] It should be noted that the description of the vehicle driving intention indication device above is similar to the description of the vehicle driving intention indication method above, and the beneficial effects of the same method will not be repeated. For technical details not disclosed in the vehicle driving intention indication device embodiments of the present invention, please refer to the description of the vehicle driving intention indication method embodiments of the present invention.

[0098] Based on the same inventive concept as the foregoing embodiments, this invention provides a vehicle, such as... Figure 3 As shown, the vehicle includes: a processor 410 and a memory 411 storing a computer program; wherein, Figure 3The processor 410 shown in the diagram does not indicate that there is only one processor 410, but only indicates the positional relationship of the processor 410 relative to other devices. In practical applications, there can be one or more processors 410; similarly, Figure 3 The memory 411 shown in the diagram has the same meaning, that is, it is only used to indicate the positional relationship of memory 411 relative to other devices. In practical applications, there can be one or more memories 411. When the processor 410 runs the computer program, the above-described vehicle driving intention indication method is implemented.

[0099] The vehicle may also include at least one network interface 412. Various components in the vehicle are coupled together via a bus system 413. It is understood that the bus system 413 is used to enable communication between these components. In addition to a data bus, the bus system 413 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 3 The general designated all buses as Bus System 413.

[0100] The memory 411 can be volatile or non-volatile, or both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); magnetic surface memory can be disk storage or magnetic tape storage. Volatile memory can be random access memory (RAM), used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memory 411 described in the embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

[0101] The memory 411 in this embodiment of the invention is used to store various types of data to support the operation of the vehicle. Examples of this data include: any computer programs used to operate on the vehicle, such as operating systems and applications; contact data; phonebook data; messages; pictures; videos, etc. The operating system includes various system programs, such as a framework layer, core library layer, driver layer, etc., used to implement various basic services and handle hardware-based tasks. Applications can include various applications, such as media players, browsers, etc., used to implement various application services. Here, the program implementing the method of this embodiment of the invention can be included in the application.

[0102] Based on the same inventive concept as the foregoing embodiments, this embodiment also provides a machine-readable storage medium storing a computer program. The machine-readable storage medium can be a magnetic random access memory (FRAM), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM), etc.; it can also be various devices including one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc. When the computer program stored in the machine-readable storage medium is executed by a processor, it implements a vehicle driving intention indication method applied to the aforementioned vehicle. For the specific steps implemented when the computer program is executed by the processor, please refer to [link to relevant documentation]. Figure 1 The description of the illustrated embodiments will not be repeated here.

[0103] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0104] In this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0105] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for indicating a vehicle's driving intention, characterized in that, include: Obtain the vehicle's driving intention scenario; Determine the lighting prompt mode based on the driving intention scenario; The system controls the indicator light group located on the side of the vehicle body and the indicator lights on the exterior rearview mirrors to output light in the light indicator mode in order to convey the vehicle's driving intention to traffic participants outside the vehicle.

2. The method according to claim 1, characterized in that, Before obtaining the vehicle's driving intention scenario, the following is also included: The system acquires at least one of the following: vehicle motion vector information, turn signal, lane change intention, automatic emergency braking signal, and electronic stability control signal, through at least one of the following: intelligent driving domain controller, body domain controller, vehicle speed sensor, acceleration sensor, steering sensor, and braking sensor.

3. The method according to claim 2, characterized in that, The scenario for obtaining the vehicle's driving intention includes at least one of the following: When the vehicle speed is stable within a preset speed range, the driving intention scenario is determined to be a constant speed cruise scenario. When the acceleration is greater than a preset acceleration threshold and / or the vehicle is in a starting state, the driving intention scenario is determined to be an acceleration scenario. When the acceleration is less than a preset deceleration threshold and / or the vehicle's braking is triggered, the driving intention scenario is determined to be a deceleration scenario. When the vehicle speed is zero and the preset parking time is continuously maintained, and / or the vehicle's automatic parking function is activated, the driving intention scenario is determined to be a parking waiting scenario. When a lane change command is received and / or the turn signal is activated and the current driving path contains a lane change trajectory, the driving intention scenario is determined to be a lane change preparation scenario; When the automatic emergency braking system and electronic stability control system are activated, and / or an impending collision is detected, the driving intention scenario is determined to be an emergency scenario.

4. The method according to claim 3, characterized in that, Determining the lighting prompt mode based on the driving intention scenario includes: Based on the mapping relationship between the driving intention scenario and the lighting prompt mode, the lighting prompt mode corresponding to the current driving intention scenario is determined; wherein the mapping relationship includes: The lighting prompt mode corresponding to the constant speed cruise scenario is that the prompt light source group is constantly lit at a preset base brightness. The lighting prompt mode corresponding to the acceleration driving scenario is that the prompt light source group presents a light flow effect that diffuses from back to front; The lighting prompt mode corresponding to the deceleration driving scenario is that the prompt light source group presents a shrinking light flow effect from front to back; The lighting prompt mode corresponding to the parking waiting scenario is that the prompt light source group presents a breathing-style periodic brightness gradient effect; The lighting prompt mode corresponding to the lane change preparation scenario is that the prompt light source group on the same side as the lane change is directionally flowing, and the indicator light of the exterior rearview mirror flashes at a preset frequency. The lighting indicator mode corresponding to the emergency scenario is that all light sources flash at a preset maximum brightness with high frequency.

5. The method according to claim 1, characterized in that, The method further includes: When a single-sided light source malfunction, is blocked, or fails to function, the brightness of the indicator light group on the normal side is increased, and / or the brightness of the indicator light on the same side exterior rearview mirror is increased to provide a fault indication.

6. The method according to claim 1, characterized in that, The method further includes: When multiple driving intention scenarios are acquired simultaneously, the light output is determined according to the preset priority and the light prompt mode corresponding to the driving intention scenario with the highest priority among the multiple driving intention scenarios is selected.

7. The method according to claim 1, characterized in that, The method further includes: When the driving intention scenario changes, the light output of the prompt light source group is controlled to smoothly transition from the current light prompt mode to the light prompt mode corresponding to the changed driving intention scenario. The smooth transition includes brightness cross-fade-in and fade-out and smooth conversion of flow direction.

8. A vehicle driving intention indication device, characterized in that, include: The driving scenario acquisition module is used to acquire the driving intention scenario of the vehicle; The lighting mode determination module is used to determine the lighting prompt mode based on the driving intention scenario; The lighting output module is used to control the indicator light group located on the side of the vehicle body and the indicator lights of the exterior rearview mirror to output lights in the lighting indicator mode in order to convey the vehicle's driving intention to traffic participants outside the vehicle.

9. A vehicle, characterized in that, include: A processor and a memory for storing executable instructions; wherein the processor is configured to execute the instructions to implement the vehicle driving intention indication method as described in any one of claims 1-7.

10. An electronic device, characterized in that, include: A processor and a memory for storing executable instructions; wherein the processor is configured to execute the instructions to implement the vehicle driving intention indication method as described in any one of claims 1-7.

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