A dual-output light source driving method and system

Abstract

The present invention discloses a two-way output light source driving method and system, and relates to the field of light source driving technology. The two-way output light source driving method obtains the ambient light intensity value and the vehicle driving angle value when the vehicle is driving in real time; pre-processes the ambient light intensity value when the vehicle is driving to obtain the environmental processing light intensity value when the vehicle is driving; based on the environmental processing light intensity value when the vehicle is driving, analyzes the real-time brightness value and real-time color temperature value of the vehicle's two-way output light sources; the present invention adjusts the brightness, color temperature and angle of the vehicle lights in real time, thereby ensuring that the driver always has the best vision under various ambient light conditions, such as at night or in bad weather. Real-time adjustment means that the lighting system can immediately respond to environmental changes, such as sudden changes in brightness and darkness when entering or leaving a tunnel, maintain the continuity and uniformity of road lighting, and greatly reduce poor vision and potential accident risks caused by improper lighting.

Description

Technical Field

[0001] The present invention relates to the technical field of light source driving, and in particular to a two-way output light source driving method and system. Background Art

[0002] In the field of power system management today, there are many complex issues. First, the power system needs to better integrate renewable energy, such as solar and wind power, to reduce dependence on traditional fossil fuels, reduce carbon emissions, and achieve sustainable energy development. Second, the rapid popularization of electric vehicles has increased the challenges of power system management, because the uncertainty of charging demand and peak hours may cause grid overload. Finally, the constant changes in residential electricity demand have also increased the complexity of power system planning and management. Traditional methods often find it difficult to adapt to such changes, resulting in waste of resources and low energy efficiency.

[0003] Based on the above solution, it is found that the limitations of the existing technology include at least the following problems. First, in the early stage of design, the development of existing vehicle lighting systems is often limited to parameter evaluation of general planning areas, and fails to conduct in-depth analysis of specific roads and driving conditions. As a result, although the relevant parameters of the construction area meet the design requirements, the actual vehicle lights perform poorly when facing the ever-changing actual road environment and are difficult to adapt to complex and changing environmental conditions. Secondly, due to the lack of a real-time response mechanism to ambient light intensity and vehicle driving status, it is difficult for traditional vehicle lighting systems to automatically adjust brightness and color temperature according to current driving conditions. This is particularly obvious when day and night alternate or the weather changes suddenly, which easily leads to the vehicle lighting system responding slowly when it needs to adapt to sudden changes in lighting conditions, making it difficult to provide the driver with immediate optimal vision, increasing the risk of driving at night or in severe weather conditions. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a two-way output light source driving method and system, which solves the problem that in the early stage of design, the development of existing vehicle lighting systems is often limited to parameter evaluation of general planning areas, but fails to conduct in-depth analysis of specific roads and driving conditions, which easily leads to the problem that although the relevant parameters of the construction area meet the design requirements, the actual vehicle lights perform poorly when facing the ever-changing actual road environment and are difficult to adapt to complex and changeable environmental conditions. Secondly, due to the lack of a real-time response mechanism to ambient light intensity and vehicle driving status, it is difficult for traditional vehicle lighting systems to automatically adjust brightness and color temperature according to current driving conditions, which is particularly obvious when day and night alternate or the weather changes suddenly, which easily leads to the vehicle lighting system responding slowly when it needs to adapt to sudden lighting conditions, making it difficult to provide the driver with an immediate optimal line of sight, increasing the risk of driving at night or in severe weather conditions.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a two-way output light source driving method, comprising the following steps: real-time acquisition of the ambient light intensity value and the vehicle driving angle value when the vehicle is driving; pre-processing the ambient light intensity value when the vehicle is driving to obtain the ambient processed light intensity value when the vehicle is driving; based on the ambient processed light intensity value when the vehicle is driving, analyzing the real-time brightness value and real-time color temperature value of the vehicle's two-way output light sources; based on the vehicle driving angle value when the vehicle is driving, analyzing the real-time angle adjustment value of the vehicle's two-way output light sources; based on the real-time brightness value, real-time color temperature value and real-time angle adjustment value of the vehicle's two-way output light sources, real-time adjustment of the vehicle's two-way output light sources.

[0006] Furthermore, the two-way output light sources of the vehicle are specifically a vehicle low beam light source and a vehicle high beam light source.

[0007] Furthermore, the specific steps for obtaining the ambient light intensity value when the vehicle is driving are as follows: obtain the maximum reference value of the ambient light intensity and the minimum reference value of the ambient light intensity, and perform a comprehensive analysis in combination with the ambient light intensity value when the vehicle is driving to obtain the ambient light intensity value when the vehicle is driving, and the calculation formula is as follows: ;in, Processing light intensity values ​​for the environment in which the vehicle is driving, is the ambient light intensity value when the vehicle is driving, is the maximum reference value of ambient light intensity, It is the minimum reference value of ambient light intensity.

[0008] Furthermore, based on the environment processing light intensity value when the vehicle is driving, the specific steps of analyzing the real-time brightness value of the two output light sources of the vehicle are as follows: based on the environment processing light intensity value when the vehicle is driving, respectively analyzing the light source adjustment factors of the vehicle's low beam light source and the vehicle's high beam light source; obtaining the maximum pulse width modulation duty cycle value of the vehicle's low beam light source and the vehicle's high beam light source, and performing comprehensive analysis in combination with the corresponding light source adjustment factors, to obtain the real-time brightness values ​​of the vehicle's low beam light source and the vehicle's high beam light source.

[0009] Furthermore, the specific formula for calculating the light source adjustment factor and the real-time brightness value of the vehicle low beam light source and the vehicle high beam light source is as follows: ;in, is the light source adjustment factor of the vehicle's low beam light source, is the maximum brightness adjustment coefficient of the vehicle's low beam light source, Processing light intensity values ​​for the environment in which the vehicle is driving, is the light source adjustment factor of the vehicle’s high beam light source, is the maximum brightness adjustment coefficient of the vehicle's high beam light source, is the real-time brightness value of the vehicle's low beam light source, is the maximum pulse width modulation duty cycle of the vehicle's low beam light source, is the real-time brightness value of the vehicle’s high beam light source, It is the maximum pulse width modulation duty cycle value of the vehicle's high beam light source.

[0010] Furthermore, based on the ambient processed light intensity value when the vehicle is driving, the specific steps for analyzing the real-time color temperature values ​​of the two output light sources of the vehicle are as follows: obtaining the basic color temperature value and the ideal ambient light intensity value of the vehicle's low beam light source and the vehicle's high beam light source; comprehensively analyzing the basic color temperature value and the ideal ambient light intensity value of the vehicle's low beam light source and the vehicle's high beam light source in combination with the ambient processed light intensity value when the vehicle is driving, to obtain the real-time color temperature values ​​of the vehicle's low beam light source and the vehicle's high beam light source.

[0011] Furthermore, the specific formula for calculating the real-time color temperature values ​​of the vehicle low beam light source and the vehicle high beam light source is as follows: ;in, is the real-time color temperature value of the vehicle’s low beam light source, is the basic color temperature value of the vehicle's low beam light source, is the color temperature adjustment coefficient of the vehicle's low beam light source, is the ideal ambient light intensity value of the vehicle's low beam light source, Processing light intensity values ​​for the environment in which the vehicle is driving, is the real-time color temperature value of the vehicle’s high beam light source, is the basic color temperature value of the vehicle's high beam light source, is the color temperature adjustment coefficient of the vehicle’s high beam light source, It is the ideal ambient light intensity value of the vehicle's high beam light source.

[0012] Furthermore, based on the vehicle driving angle value when the vehicle is driving, the specific steps of analyzing the real-time angle adjustment values ​​of the vehicle's two output light sources are as follows: obtaining the initial installation angle values ​​of the vehicle's low beam light source and the vehicle's high beam light source; comprehensively analyzing the vehicle driving angle value when the vehicle is driving, respectively, in combination with the initial installation angle values ​​of the vehicle's low beam light source and the vehicle's high beam light source, to obtain the real-time angle adjustment values ​​of the vehicle's low beam light source and the vehicle's high beam light source.

[0013] Furthermore, the specific formula for calculating the real-time angle adjustment values ​​of the vehicle low beam light source and the vehicle high beam light source is as follows: ;in, The real-time angle adjustment value of the vehicle's low beam light source. is the initial installation angle value of the vehicle's low beam light source, is the vehicle low beam light source angle adjustment coefficient, is the vehicle driving angle value when the vehicle is driving, is the real-time angle adjustment value of the vehicle's high beam light source. is the initial installation angle value of the vehicle's high beam light source, It is the vehicle's high beam light source angle adjustment coefficient.

[0014] A two-way output light source driving system comprises: a data acquisition module, a preprocessing module, a parameter analysis module, and a real-time adjustment module; the data acquisition module is used to acquire the ambient light intensity value and the vehicle driving angle value when a vehicle is driving in real time; the preprocessing module is used to preprocess the ambient light intensity value when the vehicle is driving to obtain the ambient processed light intensity value when the vehicle is driving; the parameter analysis module is used to analyze the real-time brightness value and the real-time color temperature value of the two-way output light sources of the vehicle based on the ambient processed light intensity value when the vehicle is driving, and analyze the real-time angle adjustment value of the two-way output light sources of the vehicle based on the vehicle driving angle value when the vehicle is driving; the real-time adjustment module is used to adjust the two-way output light sources of the vehicle in real time based on the real-time brightness value, the real-time color temperature value, and the real-time angle adjustment value of the two-way output light sources of the vehicle.

[0015] The present invention has the following beneficial effects:

[0016] (1) This two-way output light source driving method can ensure that the driver always has the best vision under various ambient light conditions, such as at night or in bad weather, by adjusting the brightness, color temperature and angle of the vehicle lights in real time. Real-time adjustment means that the lighting system can immediately respond to environmental changes, such as sudden changes in brightness when entering or leaving a tunnel, maintaining the continuity and uniformity of road lighting, and greatly reducing poor visibility and potential accident risks caused by improper lighting.

[0017] (2) The dual-output light source driving method automatically adjusts the brightness and color temperature according to the real-time ambient light intensity. This not only reduces the driving discomfort caused by excessive or weak light, but also effectively reduces energy waste. For example, in brighter blocks in the city, the light brightness will be automatically reduced, thereby extending the service life of the bulb and reducing energy consumption, which is in line with the modern automobile design concept of energy saving and environmental protection.

[0018] (3) This two-way output light source driving method can dynamically adjust the light angle as road conditions and vehicle driving status continue to change, such as mountain roads with large curvature changes or complex traffic environments, to ensure that the lighting direction is always consistent with the vehicle's driving direction. This dynamic angle adjustment function is particularly suitable for driving in areas with many turns and complex road conditions, thereby improving driving safety and efficiency.

[0019] (4) The dual-output light source driving system, through the high integration of its component modules and real-time data processing capabilities, can work closely with modern intelligent transportation systems (ITS), thereby enhancing the interoperability of vehicles in intelligent transportation environments. The data acquisition module not only collects the vehicle's own ambient light intensity and driving angle data, but also receives external inputs from the intelligent transportation system, such as road conditions, traffic density information, and emergency notifications. This information is further processed in the preprocessing and parameter analysis modules. The real-time adjustment module dynamically adjusts the light source output based on these comprehensive data to ensure that the vehicle lighting system responds promptly and accurately.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a flow chart of a two-way output light source driving method of the present invention.

[0022] Figure 2 The present invention is a flowchart of the specific steps of processing the light intensity value based on the environment when the vehicle is driving and analyzing the real-time brightness value of the two-way output light source of the vehicle in a two-way output light source driving method of the present invention.

[0023] Figure 3 The present invention is a flowchart of the specific steps of analyzing the real-time color temperature values ​​of the two-way output light sources of the vehicle based on the light intensity value of the environment when the vehicle is driving in a two-way output light source driving method.

[0024] Figure 4 This is a block diagram of a two-way output light source driving system of the present invention. DETAILED DESCRIPTION

[0025] The embodiment of the present application solves the problem that the development of existing vehicle lighting systems is often limited to parameter evaluation of general planning areas in the early stage of design, but fails to conduct in-depth analysis of specific roads and driving conditions, which easily leads to the fact that although the relevant parameters of the construction area meet the design requirements, the actual vehicle lights perform poorly when facing the ever-changing actual road environment and are difficult to adapt to complex and changeable environmental conditions. Secondly, due to the lack of a real-time response mechanism to ambient light intensity and vehicle driving status, it is difficult for traditional vehicle lighting systems to automatically adjust brightness and color temperature according to current driving conditions. This is particularly obvious when day and night alternate or the weather changes suddenly, which easily leads to the vehicle lighting system responding slowly when it needs to adapt to sudden lighting conditions, making it difficult to provide the driver with immediate optimal vision, increasing the risk of driving at night or in severe weather conditions.

[0026] The overall idea of ​​the problem in the embodiment of this application is as follows:

[0027] First, the system needs to monitor and obtain the ambient light intensity and vehicle driving angle values ​​in real time. These data are the basis for adjusting the output of the lighting system. Then, the ambient light intensity values ​​are preprocessed to obtain the processed ambient light intensity values. This step is to standardize the light intensity data to make it more suitable for subsequent analysis and use. The real-time brightness and color temperature values ​​of the two output light sources (low beam and high beam) of the vehicle are determined based on the preprocessed ambient light intensity values. At the same time, based on the actual driving angle of the vehicle, the real-time angle adjustment values ​​of the two light sources are analyzed and determined. Finally, based on the above analysis results, the low beam and high beam are adjusted in real time to ensure that the output of the light source is optimized under any driving conditions.

[0028] See also Figure 1 The embodiment of the present invention provides a technical solution: a two-way output light source driving method, comprising the following steps: real-time acquisition of an ambient light intensity value (the light intensity of the surrounding environment) and a vehicle driving angle value (the angle of the vehicle's current driving direction relative to the road) when a vehicle is driving; pre-processing the ambient light intensity value when the vehicle is driving to obtain an ambient processed light intensity value when the vehicle is driving; analyzing the real-time brightness value and real-time color temperature value of the vehicle's two-way output light sources based on the ambient processed light intensity value when the vehicle is driving; analyzing the real-time angle adjustment value of the vehicle's two-way output light sources based on the vehicle's driving angle value when the vehicle is driving; and adjusting the vehicle's two-way output light sources in real time based on the real-time brightness value, real-time color temperature value, and real-time angle adjustment value of the vehicle's two-way output light sources.

[0029] The two-way output light sources of the vehicle are specifically the vehicle low beam light source and the vehicle high beam light source.

[0030] Specifically, the specific steps for obtaining the environmental processing light intensity value when the vehicle is driving are as follows: obtain the maximum reference value of the ambient light intensity (of the environment in which the vehicle is driving) and the minimum reference value of the ambient light intensity (of the environment in which the vehicle is driving), and perform a comprehensive analysis in combination with the ambient light intensity value when the vehicle is driving to obtain the environmental processing light intensity value when the vehicle is driving, and the calculation formula is as follows: ;in, Processing light intensity values ​​for the environment in which the vehicle is driving, is the ambient light intensity value when the vehicle is driving, is the maximum reference value of ambient light intensity, It is the minimum reference value of ambient light intensity.

[0031] It needs to be explained that the specific process of obtaining the maximum reference value of ambient light intensity (of the environment in which the vehicle is traveling) and the minimum reference value of ambient light intensity (of the environment in which the vehicle is traveling) is as follows: for the environment in which the vehicle is traveling, obtain several historical measurement results, that is, the historical ambient light intensity measurement values, and then arrange the several historical ambient light intensity measurement values ​​in descending order to obtain the maximum value of the historical ambient light intensity measurement and the minimum value of the historical ambient light intensity measurement, and record them as the maximum reference value of ambient light intensity and the minimum reference value of ambient light intensity, respectively.

[0032] In this embodiment, by collecting and analyzing historical ambient light intensity measurements, the system can make more accurate decisions based on big data. This data-driven approach allows the system to learn from actual driving experience and optimize light source output settings. For example, by understanding the range of light intensity in different time periods and different geographical locations, the system can predict the lighting level most likely to be required under similar conditions. Using the maximum and minimum reference points of historical ambient light intensity values, the system can automatically adjust the light source to adapt to extreme or atypical lighting conditions. This adaptability ensures that in sudden changes in lighting conditions, such as entering a tunnel or suddenly encountering heavy rain and haze, the vehicle lights can be quickly adjusted to the most appropriate brightness and color temperature to ensure driving safety. By regularly analyzing historical light intensity data, the system can not only respond to real-time conditions, but also perform predictive maintenance and performance optimization. For example, if the analysis finds that the light intensity often decreases in certain time periods, the system can adjust the lighting strategy in advance to avoid sudden adjustments when visibility is poor, thereby improving driving comfort and safety. At the same time, this analysis can also help formulate more energy-saving lighting usage strategies and reduce unnecessary energy consumption.

[0033] Specifically, Figure 2 As shown, the specific steps for analyzing the real-time brightness values ​​of the two output light sources of the vehicle based on the environment processing light intensity value when the vehicle is driving are as follows: based on the environment processing light intensity value when the vehicle is driving, respectively analyze the light source adjustment factors of the vehicle low beam light source and the vehicle high beam light source; obtain the maximum pulse width modulation duty cycle value of the vehicle low beam light source and the vehicle high beam light source, and perform comprehensive analysis in combination with the corresponding light source adjustment factors to obtain the real-time brightness values ​​of the vehicle low beam light source and the vehicle high beam light source.

[0034] The specific formula for calculating the light source adjustment factor and real-time brightness value of the vehicle low beam light source and the vehicle high beam light source is as follows: ;in, is the light source adjustment factor of the vehicle's low beam light source, is the maximum brightness adjustment coefficient of the vehicle's low beam light source, Processing light intensity values ​​for the environment in which the vehicle is driving, is the light source adjustment factor of the vehicle’s high beam light source, is the maximum brightness adjustment coefficient of the vehicle's high beam light source, is the real-time brightness value of the vehicle's low beam light source, is the maximum pulse width modulation duty cycle of the vehicle's low beam light source, is the real-time brightness value of the vehicle’s high beam light source, It is the maximum pulse width modulation duty cycle value of the vehicle's high beam light source.

[0035] It needs to be explained that the maximum pulse width modulation duty cycle value is usually set according to the electrical and optical characteristics of the light source. These values ​​ensure that the light source does not exceed its electrical safety limit at maximum power output, while achieving optimal luminous efficacy and life. Usually, the maximum pulse width modulation duty cycle values ​​of the vehicle low beam light source and the vehicle high beam light source are obtained from the instruction manual provided by the manufacturer of the lamp. In the absence of clear manufacturer recommended values, the ideal PWM duty cycle is calculated through the basic principles of electronic engineering, taking into account the rated voltage and current of the lamp, as well as the required light output power.

[0036] , The specific calculation example is as follows:

[0037] For urban roads (usually with street lights, frequent traffic, and many pedestrians), choose low beam lights with a target brightness of 300 lumens (suitable for urban driving, enough to see the front without strong glare) because the streets are already illuminated and do not need to be too bright to avoid glare. The maximum output of the lamp is 1000 lumens, then =300 / 1000=0.3.

[0038] For rural roads (where lighting conditions are poor and animals may cross the road), choose high beams with a target brightness of 900 lumens (to provide sufficient lighting to identify potential hazards) and a maximum output of 1000 lumens. =900 / 1000=0.9.

[0039] For highways (high-speed driving, long-distance lighting is required), choose high beam, whose target brightness is strong lighting to support quick response and safe driving. Assuming the target brightness is 1000 lumens (maximum brightness to cover long distances), the maximum output of the lamp is 1000 lumens, then =1000 / 1000=1.0.

[0040] For foggy or low visibility conditions (where moderate brightness is needed to reduce reflections and glare), choose a low beam headlight with a target brightness adjusted to reduce scattering in fog, and assuming the target brightness is 450 lumens (moderate brightness helps improve vision without causing reflections), the maximum output of the lamp is 1000 lumens, then =450 / 1000=0.45.

[0041] For the above environmental conditions, the corresponding environmental conditions are judged by analyzing the vehicle's driving speed. For example, if the vehicle speed is continuously higher than 90km / h, the driving environment is considered to be a highway.

[0042] In this embodiment, by adjusting the light output according to specific road conditions and environments, the vehicle's lighting system can more accurately adapt to the current driving environment. For example, on urban roads, the brightness can be reduced to reduce glare to pedestrians and oncoming vehicles; in rural areas or on highways, the brightness can be increased to improve long-distance visibility. This adaptability not only improves driving safety, but also improves the effectiveness and efficiency of lighting. By automatically adjusting the brightness of low beam and high beam according to the ambient light intensity and road type, it ensures that the vehicle has proper lighting in any situation. This is especially important for night driving. For example, in foggy days or other low visibility conditions, moderate brightness can reduce light scattering and reflection, thereby improving the driver's vision and reaction time. On highways, maximizing brightness can ensure that the driver can see distant obstacles in time. By intelligently adjusting the brightness of the lights, not only can excessive use of electricity be avoided when high brightness is not needed, but energy use can also be optimized according to actual needs. For example, lowering the brightness of lights on well-lit city streets can significantly reduce energy consumption, while reasonably increasing the brightness in environments that require more lighting ensures the effective use of energy. This method not only extends the life of the lighting system, but also reduces maintenance costs. By real-time monitoring of vehicle speed and inferring the driving environment based on the vehicle speed (such as judging high-speed driving environments), the system can quickly respond to external changes and adjust the lighting settings in real time to adapt to current road conditions. This flexible response mechanism enables the vehicle to maintain the best lighting state under various driving conditions, providing continuous and stable support for the driver.

[0043] Specifically, Figure 3 As shown, based on the ambient processed light intensity value when the vehicle is driving, the specific steps for analyzing the real-time color temperature values ​​of the two output light sources of the vehicle are as follows: obtaining the basic color temperature value and the ideal ambient light intensity value of the vehicle's low beam light source and the vehicle's high beam light source; comprehensively analyzing the basic color temperature value and the ideal ambient light intensity value of the vehicle's low beam light source and the vehicle's high beam light source in combination with the ambient processed light intensity value when the vehicle is driving, to obtain the real-time color temperature values ​​of the vehicle's low beam light source and the vehicle's high beam light source.

[0044] The specific formula for calculating the real-time color temperature values ​​of the vehicle's low beam light source and the vehicle's high beam light source is as follows: ;in, is the real-time color temperature value of the vehicle’s low beam light source, is the basic color temperature value of the vehicle's low beam light source, is the color temperature adjustment coefficient of the vehicle's low beam light source, is the ideal ambient light intensity value of the vehicle's low beam light source (this value has been standardized during calculation), Processing light intensity values ​​for the environment in which the vehicle is driving, is the real-time color temperature value of the vehicle’s high beam light source, is the basic color temperature value of the vehicle's high beam light source, is the color temperature adjustment coefficient of the vehicle’s high beam light source, is the ideal ambient light intensity value of the vehicle's high beam light source (this value has been standardized during calculation).

[0045] It should be explained that the basic color temperature values ​​of the vehicle's low beam light source and the vehicle's high beam light source are obtained from the instruction manual provided by the lamp manufacturer.

[0046] The ideal ambient light intensity values ​​for the vehicle's low beam light source and the vehicle's high beam light source are determined by using professional lighting and visual simulation software (such as Optis SPEOS) to simulate the lighting requirements under different environmental conditions and determine the most ideal ambient light intensity.

[0047] , The specific calculation process is as follows: first, the goal of color temperature adjustment is to optimize visual effects and safety and improve driving comfort under different ambient light conditions. Secondly, study the literature and existing scientific research to understand the impact of different color temperatures on nighttime visual sensitivity and the changes in color temperature requirements under different ambient light intensities.

[0048] A series of experiments were designed that included the use of different ambient light intensity settings (low, medium, and high light intensity conditions corresponding to different HcG values) in a controlled environment (laboratory) and in an actual road environment.

[0049] Test drivers’ visual responses and preferences using a set of standard color temperature variations (e.g., from 3000K to 6000K).

[0050] Under each light intensity condition, the driver's response to different color temperature settings was recorded, including visual comfort, object recognition ability and reaction time.

[0051] Eye tracking technology and questionnaires were used to collect data to ensure objectivity and accuracy of the results.

[0052] The collected data is statistically analyzed to find the optimal response of color temperature adjustment under different ambient light intensities.

[0053] Use statistical methods such as regression analysis to determine the color temperature adjustment coefficient , The best value.

[0054] According to the data analysis results, calculate the most suitable , , these coefficients should most effectively adjust the actual ambient light intensity to the ideal color temperature level.

[0055] Apply these coefficients in a vehicle simulator to simulate different driving scenarios and verify the effect of color temperature adjustment.

[0056] Analyze simulation results to confirm whether color temperature adjustment improves visual effects and driving safety.

[0057] A lighting system with dynamic color temperature adjustment function is installed on the actual vehicle for road testing.

[0058] Collect driver feedback and system performance data to evaluate performance under real-world road conditions.

[0059] Based on the feedback from the validation test, necessary adjustments and optimizations are made to ensure that the color temperature adjustment system can achieve the best results under all predetermined environmental conditions.

[0060] In this implementation, the real-time adjustment of color temperature is optimized for different ambient light intensities, which can significantly improve the visual quality at night or in low-light environments. Appropriate color temperature can reduce glare and enhance the ability to recognize road conditions, especially when identifying pedestrians, road signs and other important visual information. By improving the visual effect, driving safety is directly increased and the risk of accidents that may be caused by night driving is reduced. By responding to the ambient light intensity in real time, the system can adjust the color temperature to adapt to a variety of lighting conditions from city streets to rural roads, from dusk to late night. This adaptability enables the vehicle lighting system to maintain optimal performance in different environments, whether in rainy days, foggy days or other special weather conditions. This not only It improves driving comfort and ensures continuity and consistency in all kinds of weather and lighting changes. By precisely controlling the color temperature, the energy use of the light can be optimized and unnecessary high power consumption can be avoided, thereby improving overall energy efficiency. At the same time, it prevents the light from over-operating under inappropriate conditions, which helps to extend the life of the bulb and reduce maintenance costs. This fine adjustment not only meets environmental protection standards, but also reduces the operating costs of the vehicle. The lighting system that can automatically adjust the color temperature according to the actual driving lighting environment provides the driver with greater confidence and control. The driver can rely on the system to automatically make the best lighting adjustments in various environments, so that he can focus more on road conditions and driving, rather than frequently adjusting the lighting settings manually.

[0061] Specifically, based on the vehicle driving angle value when the vehicle is driving, the specific steps of analyzing the real-time angle adjustment values ​​of the vehicle's two-way output light sources are as follows: obtain the initial installation angle values ​​of the vehicle's low beam light source and the vehicle's high beam light source; comprehensively analyze the vehicle driving angle value when the vehicle is driving, combined with the initial installation angle values ​​of the vehicle's low beam light source and the vehicle's high beam light source, to obtain the real-time angle adjustment values ​​of the vehicle's low beam light source and the vehicle's high beam light source.

[0062] The specific formula for calculating the real-time angle adjustment value of the vehicle's low beam light source and the vehicle's high beam light source is as follows: ;in, The real-time angle adjustment value of the vehicle's low beam light source. is the initial installation angle value of the vehicle's low beam light source, is the vehicle low beam light source angle adjustment coefficient, is the vehicle driving angle value when the vehicle is driving, is the real-time angle adjustment value of the vehicle's high beam light source. is the initial installation angle value of the vehicle's high beam light source, It is the vehicle's high beam light source angle adjustment coefficient.

[0063] It needs to be explained that the initial installation angle values ​​of the vehicle's low beam light source and the vehicle's high beam light source are usually set by the automobile manufacturer during the vehicle design and manufacturing stage based on the vehicle type, design specifications and safety standards.

[0064] The vehicle driving angle value when the vehicle is driving is obtained in real time through the angle sensor.

[0065] , The specific calculation process is:

[0066] Determine performance objectives for the lighting system, such as maximum lighting distance, optimal lighting angle, and minimum glare levels.

[0067] Enter vehicle specific parameters including light type, power, initial mounting angle, etc., as well as the vehicle's dimensions and ride characteristics.

[0068] Perform detailed lighting simulations using optical simulation software such as ANSYS VRXPERIENCE or Optis SPEOS.

[0069] Simulate different environments such as rain, fog, night time and different types of roads (city streets, country roads, highways).

[0070] Analog Adjustment , How lighting works in different scenarios, recording ideal coverage and light direction.

[0071] A lighting system with an adjustable angle function is installed on the test vehicle.

[0072] Design a series of field tests covering different environments and road conditions.

[0073] Use sensors and camera systems to collect data on lighting performance, including light coverage area and driver feedback.

[0074] Analyze the collected data to determine under what conditions , Adjustments may be needed to improve lighting or reduce glare.

[0075] According to the field test results, adjust , value to achieve the best lighting performance.

[0076] Get driver feedback on lighting system performance through questionnaires, interviews, and usage data collected by the in-vehicle system.

[0077] Evaluate the performance of the lighting system in actual use, with special attention to the driver's visual comfort and sense of safety in different environments.

[0078] Continuously adjust based on feedback , value to optimize the performance of the lighting system.

[0079] Feed the data and experience gained from actual applications into the simulation model to improve the model's accuracy and predictive ability.

[0080] In this embodiment, the vehicle's lighting system adapts to different driving conditions and road environments by adjusting the angles of the low beam and high beam in real time, thereby significantly improving the accuracy and adaptability of lighting. For example, when the vehicle is driving on a curve, the lighting system can automatically adjust the lighting angle to better illuminate the road, which is crucial to improving driving safety at night or in low visibility conditions. Real-time adjustment of the lighting angle ensures that the vehicle's lights can effectively illuminate the driving path regardless of the driving conditions. This automated lighting adjustment helps reduce the driver's distraction due to manual lighting adjustment, allowing the driver to focus more on the road and traffic conditions, thereby reducing the probability of accidents. By ensuring that the lights always illuminate the road ahead at the optimal angle, the driver can obtain a clearer and more consistent This not only reduces driving stress, but also improves overall driving comfort. At the same time, it avoids glare to oncoming vehicles caused by improper lighting settings, and improves the safety of all users on the road. By precisely controlling the lighting angle, every watt of energy can be used more efficiently, reducing energy waste caused by the failure of lighting to properly illuminate the required area. At the same time, this system can extend the service life of the lamp by reducing unnecessary movement of the light, thereby reducing maintenance costs. The implementation of this lighting adjustment technology provides a basis for integration with other on-board systems such as automated driving assistance systems. By sharing data and control logic with the ADAS system, the lighting system can respond more accurately to the vehicle's real-time driving status and external environmental changes, further improving the vehicle's intelligence level and road safety.

[0081] See also Figure 4The embodiment of the present invention provides a technical solution: a two-way output light source driving system, comprising: a data acquisition module, a preprocessing module, a parameter analysis module, and a real-time adjustment module; the data acquisition module is used to acquire the ambient light intensity value (the light intensity of the surrounding environment) and the vehicle driving angle value (the angle of the vehicle's current driving direction relative to the road) when the vehicle is driving in real time; the preprocessing module is used to preprocess the ambient light intensity value when the vehicle is driving to obtain the ambient processed light intensity value when the vehicle is driving; the parameter analysis module is used to analyze the real-time brightness value and real-time color temperature value of the vehicle's two-way output light sources based on the ambient processed light intensity value when the vehicle is driving, and analyze the real-time angle adjustment value of the vehicle's two-way output light sources based on the vehicle's driving angle value when the vehicle is driving; the real-time adjustment module is used to adjust the vehicle's two-way output light sources in real time based on the real-time brightness value, real-time color temperature value, and real-time angle adjustment value of the vehicle's two-way output light sources.

[0082] In summary, this application has at least the following effects:

[0083] By adjusting the brightness, color temperature and angle of the vehicle lights in real time, it is possible to ensure that the driver always has the best vision under various ambient light conditions, such as at night or in bad weather. Real-time adjustment means that the lighting system can instantly respond to environmental changes, such as sudden changes in light and dark when entering or leaving a tunnel, maintaining the continuity and uniformity of road lighting, and significantly reducing poor visibility and potential accident risks caused by improper lighting.

[0084] By automatically adjusting the brightness and color temperature according to the real-time ambient light intensity, this not only reduces driving discomfort caused by excessive or weak light, but also effectively reduces energy waste. For example, in brighter blocks in the city, the light brightness will be automatically reduced, thereby extending the service life of the bulb and reducing energy consumption, which is in line with the modern automobile design concept of energy conservation and environmental protection.

[0085] As road conditions and vehicle driving status continue to change, such as mountain roads with large curvature changes or complex traffic environments, this method can dynamically adjust the lighting angle to ensure that the lighting direction is always consistent with the vehicle's driving direction. This dynamic angle adjustment function is particularly suitable for driving in areas with many turns and complex road conditions, improving driving safety and efficiency.

[0086] Through the high integration of its component modules and real-time data processing capabilities, it can work closely with modern intelligent transportation systems (ITS) to enhance the interoperability of vehicles in intelligent transportation environments. The data acquisition module not only collects the vehicle's own ambient light intensity and driving angle data, but also receives external input from the intelligent transportation system, such as road conditions, traffic density information, and emergency notifications. This information is further processed in the preprocessing and parameter analysis modules, and the real-time adjustment module dynamically adjusts the light source output based on these comprehensive data to ensure that the vehicle lighting system responds promptly and accurately.

[0087] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0088] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A two-way output light source driving method, characterized in that: The following steps are involved: Real-time acquisition of ambient light intensity and vehicle driving angle values ​​when the vehicle is driving; Preprocessing the ambient light intensity value when the vehicle is driving to obtain the ambient processed light intensity value when the vehicle is driving; Based on the light intensity value of the environment when the vehicle is driving, the real-time brightness value and real-time color temperature value of the two output light sources of the vehicle are analyzed; Based on the driving angle value of the vehicle when the vehicle is driving, analyzing the real-time angle adjustment value of the two-way output light source of the vehicle; Real-time adjustment of the vehicle's two-way output light sources based on the vehicle's two-way output light sources' real-time brightness value, real-time color temperature value, and real-time angle adjustment value; The two-way output light source of the vehicle is specifically a vehicle low beam light source and a vehicle high beam light source; The specific steps for obtaining the ambient processing light intensity value when the vehicle is driving are as follows: The maximum reference value of the ambient light intensity and the minimum reference value of the ambient light intensity are obtained, and a comprehensive analysis is performed in combination with the ambient light intensity value when the vehicle is driving to obtain the ambient processing light intensity value when the vehicle is driving. The calculation formula is as follows: ； in, Processing light intensity values ​​for the environment in which the vehicle is driving, is the ambient light intensity value when the vehicle is driving, is the maximum reference value of ambient light intensity, is the minimum reference value of ambient light intensity; The specific steps for analyzing the real-time brightness values ​​of the two output light sources of the vehicle based on the environmental light intensity values ​​of the vehicle when the vehicle is driving are as follows: Based on the environmental processing light intensity value when the vehicle is driving, the light source adjustment factors of the vehicle low beam light source and the vehicle high beam light source are analyzed respectively; The maximum pulse width modulation duty cycle values ​​of the vehicle low beam light source and the vehicle high beam light source are obtained, and the corresponding light source adjustment factors are combined for comprehensive analysis to obtain the real-time brightness values ​​of the vehicle low beam light source and the vehicle high beam light source; The specific formula for calculating the light source adjustment factor and real-time brightness value of the vehicle low beam light source and the vehicle high beam light source is as follows: ； in, is the light source adjustment factor of the vehicle's low beam light source, is the maximum brightness adjustment coefficient of the vehicle's low beam light source, Processing light intensity values ​​for the environment in which the vehicle is driving, is the light source adjustment factor of the vehicle’s high beam light source, is the maximum brightness adjustment coefficient of the vehicle's high beam light source, is the real-time brightness value of the vehicle's low beam light source, is the maximum pulse width modulation duty cycle of the vehicle's low beam light source, is the real-time brightness value of the vehicle’s high beam light source, is the maximum pulse width modulation duty cycle value of the vehicle's high beam light source; The specific steps for analyzing the real-time color temperature values ​​of the two output light sources of the vehicle based on the ambient light intensity value when the vehicle is driving are as follows: Obtain the basic color temperature value and ideal ambient light intensity value of the vehicle's low beam light source and vehicle's high beam light source; The basic color temperature values ​​and ideal ambient light intensity values ​​of the vehicle's low beam light source and vehicle's high beam light source are combined with the ambient processing light intensity value when the vehicle is driving to perform a comprehensive analysis to obtain the real-time color temperature values ​​of the vehicle's low beam light source and vehicle's high beam light source; The specific formula for calculating the real-time color temperature values ​​of the vehicle's low beam light source and the vehicle's high beam light source is as follows: ； in, is the real-time color temperature value of the vehicle’s low beam light source, is the basic color temperature value of the vehicle's low beam light source, is the color temperature adjustment coefficient of the vehicle's low beam light source, is the ideal ambient light intensity value of the vehicle's low beam light source, Processing light intensity values ​​for the environment in which the vehicle is driving, is the real-time color temperature value of the vehicle’s high beam light source, is the basic color temperature value of the vehicle's high beam light source, is the color temperature adjustment coefficient of the vehicle's high beam light source, It is the ideal ambient light intensity value of the vehicle's high beam light source.

2. The two-way output light source driving method according to claim 1, characterized in that: Based on the vehicle driving angle value when the vehicle is driving, the specific steps of analyzing the real-time angle adjustment value of the two-way output light source of the vehicle are as follows: Obtain the initial installation angle values ​​of the vehicle's low beam light source and the vehicle's high beam light source; The vehicle driving angle value when the vehicle is driving is comprehensively analyzed in combination with the initial installation angle values ​​of the vehicle low beam light source and the vehicle high beam light source to obtain the real-time angle adjustment values ​​of the vehicle low beam light source and the vehicle high beam light source.

3. The two-way output light source driving method according to claim 2, characterized in that: The specific formula for calculating the real-time angle adjustment value of the vehicle's low beam light source and the vehicle's high beam light source is as follows: ； in, The real-time angle adjustment value of the vehicle's low beam light source. is the initial installation angle value of the vehicle's low beam light source, is the vehicle low beam light source angle adjustment coefficient, is the vehicle driving angle value when the vehicle is driving, is the real-time angle adjustment value of the vehicle's high beam light source. is the initial installation angle value of the vehicle's high beam light source, It is the vehicle's high beam light source angle adjustment coefficient.

4. A two-way output light source driving system, using the two-way output light source driving method according to any one of claims 1 to 3, characterized in that: include: Data acquisition module, preprocessing module, parameter analysis module, real-time adjustment module; The data acquisition module is used to obtain the ambient light intensity value and the vehicle driving angle value when the vehicle is driving in real time; The preprocessing module is used to preprocess the ambient light intensity value when the vehicle is traveling, so as to obtain the ambient processed light intensity value when the vehicle is traveling; The parameter analysis module is used to analyze the real-time brightness value and real-time color temperature value of the two-way output light source of the vehicle based on the environmental processing light intensity value when the vehicle is traveling, and analyze the real-time angle adjustment value of the two-way output light source of the vehicle based on the vehicle driving angle value when the vehicle is traveling; The real-time adjustment module is used to adjust the two-way output light sources of the vehicle in real time based on the real-time brightness value, real-time color temperature value, and real-time angle adjustment value of the two-way output light sources of the vehicle.

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