A whole vehicle light effect test evaluation method

Abstract

The present application belongs to the technical field of vehicle lamp verification, and discloses a whole vehicle light effect test and evaluation method, steps comprising: S1, building a darkroom required for evaluation, simulating actual driving environment; S2, adopting review angle demonstration combined with darkroom simulation environment, presetting review position and multiple review points, for testing and reviewing light effect of A sample or benchmark vehicle; S3, placing A sample or benchmark vehicle fixed on the whole vehicle light review rack on the preset review position in the darkroom, testing and reviewing according to the preset review points. The present application is assisted by darkroom modification and building, adopts the method of simulating actual driving environment, reviews the whole vehicle light in the sample stage, helps to more directly reflect the lamp development state, discovers the light spot, dark area, reflection and other optical problems in advance, and also enables the modeling staff to better understand the vehicle modeling state at various angles, which is helpful for subsequent modeling design.

Description

Technical Field

[0001] This invention belongs to the field of vehicle lighting verification technology, specifically relating to a method for testing and evaluating the lighting effects of a whole vehicle. Background Technology

[0002] With the rapid iteration of the global automotive industry and the continuous innovation of automotive styling design concepts, automotive lighting is no longer just a functional component that meets basic lighting needs. It has achieved rapid breakthroughs and upgrades in terms of aesthetics, functional diversity, and manufacturing precision, becoming one of the core elements that highlight the overall design style of automobiles and enhance product competitiveness.

[0003] Meanwhile, as the automotive consumer market continues to mature, users' performance requirements for automotive lighting are upgrading from traditional basic lighting needs to more refined, diversified, and high-quality requirements. Specifically, for the high and low beams of automotive headlights, users require good uniformity and sufficient brightness to ensure driving safety under different driving conditions; for daytime running lights, high brightness and excellent uniformity are required to ensure extremely high visibility of the vehicle during daytime driving; for rear position lights, a wide viewing angle and clear visibility are required to reduce the risk of rear-end collisions at night or in complex weather conditions; and for various interior lighting fixtures, uniform light color and brightness are required to improve the comfort and overall quality of the vehicle's interior.

[0004] Users' diverse and high-quality demands for automotive lighting performance place stringent requirements on the manufacturing of automotive lighting fixtures. There is an urgent need to establish a complete and systematic lighting performance evaluation system, as well as precise and efficient evaluation methods, to comprehensively test and control the various optical performance and styling effects of automotive lights, and ensure that the manufactured lighting fixtures can meet user needs and industry standards.

[0005] However, the existing fine illuminance measurement technology in the industry has obvious limitations: the technology is mainly used for performance testing of high and low beams of automotive headlights, and cannot achieve comprehensive evaluation of all types of lights in the vehicle (daytime running lights, rear position lights, interior lights, etc.); at the same time, the operation process of this measurement method is cumbersome and time-consuming, and the cost of the testing equipment and process is high, making it difficult to apply to the prototype stage of automotive lighting development and unable to provide timely feedback on the development status of the lights.

[0006] In the development of automotive lighting, the prototype stage is a crucial step in verifying the performance and styling design of the lighting fixtures. If optical problems (such as bright spots, dark areas, and reflections) and unreasonable aspects of the styling design under different viewing angles cannot be identified in a timely manner, these problems will be carried over to the subsequent mass production stage, increasing design modification costs and development cycles. In addition, under the current development model, styling designers find it difficult to intuitively understand the overall styling presentation of the lighting fixtures in actual application scenarios (such as the perspective of oncoming vehicles, the perspective of following vehicles, and the perspective of exhibition displays), which is not conducive to the accurate matching of styling design with actual application needs.

[0007] Therefore, there is an urgent need for a technical solution that can achieve comprehensive review of vehicle lighting at the prototype stage, taking into account both optical performance testing and styling effect verification, while being efficient and low-cost, in order to address the shortcomings of existing technologies and help improve the efficiency and quality of automotive lighting. Summary of the Invention

[0008] The purpose of this invention is to provide a method for testing and evaluating the lighting effects of a vehicle. By modifying and building a darkroom and simulating the actual driving environment, the lighting of the entire vehicle can be reviewed at the prototype stage. This helps to more intuitively reflect the development status of the lighting fixtures, identify optical problems such as bright spots, dark areas, and reflections in advance, and also allows styling staff to better understand the vehicle's styling status from various perspectives (such as oncoming vehicles, following vehicles, and exhibiting users), which is helpful for subsequent styling design.

[0009] The specific details of the plan are as follows:

[0010] A method for testing and evaluating the lighting effects of a vehicle, comprising the following steps:

[0011] S1. Construct a darkroom for the evaluation to simulate the actual driving environment;

[0012] S2. The evaluation perspective is combined with a darkroom simulation environment, with pre-set evaluation positions and multiple evaluation points;

[0013] S3. Based on the preset review points, test and review the A sample or the benchmark vehicle placed at the preset review position in the darkroom.

[0014] Furthermore, in step S1, the floor of the darkroom is set as a road surface, and a movable green belt, lane lines, sidewalks and ambient lights are set longitudinally on the road surface. The movable green belt is set on the left side of the lane lines, the sidewalk is set on the right side of the lane lines, and the ambient lights are set on the left side of the movable green belt and on the sidewalk respectively.

[0015] The evaluation method of this invention involves constructing a darkroom for review. The floor of the darkroom is set as a road surface, on which a movable green belt, lane lines, a sidewalk, and ambient lights are longitudinally arranged. The movable green belt is located to the left of the lane lines, and the sidewalk is located to the right of the lane lines. The ambient lights are respectively located to the left of the movable green belt and on the sidewalk. The ambient lights simulate driving environments under different lighting conditions by switching between street light mode and natural light mode. The A sample or a benchmark vehicle is then tested and reviewed. The A sample includes a front combination light, signal lights, and interior lights. The front combination light, signal lights, and interior lights are fixedly installed at corresponding positions on the vehicle lighting review stand, and the fixed positions of the front combination light, signal lights, and interior lights are consistent with the installation positions of the corresponding lights in the actual vehicle, for the purpose of testing and reviewing the lighting effects. The preferred vehicle lighting review bench of this invention includes a front lighting review device, a rear lighting review device, a left interior lighting review device, and a right interior lighting review device. The front and rear lighting review devices have identical structures but are arranged at intervals. The left and right interior lighting review devices have identical structures and are arranged opposite each other between the front and rear lighting review devices. Each of the front, rear, left, and right interior lighting review devices is equipped with casters at its bottom, and the mounting positions of the lights can be adjusted in the X, Y, and Z directions of the vehicle body. The mounting positions of the front, rear, left, and right interior lights correspond to the mounting positions of the corresponding lights on the actual vehicle. The front, rear, left, and right interior lighting review devices can be used individually or as a set during lighting review, depending on actual needs.

[0016] Multiple review points were pre-set before the test, including: First review point: reviewing the lighting effect around the vehicle; Second review point: reviewing the lighting effect 3 meters in front of the vehicle; Third review point: reviewing the lighting effect 10 meters in front of the vehicle; Fourth review point: reviewing the lighting effect 6 meters away at a 60° angle to the left front of the vehicle; Fifth review point: reviewing the lighting effect 7 meters away at a 45° angle to the left front of the vehicle; Sixth review point: reviewing the lighting effect 10 meters away at a 30° angle to the left front of the vehicle; Seventh review point: reviewing the lighting effect 10 meters behind the vehicle; Eighth review point: reviewing the lighting effect 6 meters away at a 30° angle to the right rear of the vehicle; Ninth review point: reviewing the lighting effect of the road surface and movable green belt. Before testing and review, sample A is installed and fixed on the vehicle lighting review stand and placed at the preset review position on the darkroom floor, so that the position of the lamp to be tested is consistent with that of the actual vehicle lamp. By switching the ambient light mode, the lighting effect is tested and reviewed according to the preset review points, and optical problems such as bright spots, dark areas, and reflections are discovered in advance. It takes into account both optical performance testing and styling effect verification, which is efficient and low-cost, and helps to promote the efficient development and quality improvement of automotive lighting.

[0017] Furthermore, the ambient lighting includes a street light mode and a natural light mode. The street light mode includes a street light on mode, a street light off mode, and a street light high-brightness glare mode; the natural light mode includes a daylight mode and a daylight high-brightness glare mode. By switching between different modes of the ambient lighting, the driving environment under different lighting conditions can be simulated.

[0018] Furthermore, in step 2, the preset review points include:

[0019] First review point: Review of the vehicle's lighting effects;

[0020] Second review point: Review the lighting effect 3 meters in front of the vehicle;

[0021] Third review point: Review the lighting effect 10 meters in front of the vehicle;

[0022] Fourth review point: Review the lighting effect at a distance of 6 meters, 60º to the left front of the vehicle;

[0023] Fifth review point: Review the lighting effect at a distance of 7 meters, 45º to the left front of the vehicle;

[0024] Sixth review point: Review the lighting effect at a distance of 10 meters, 30º to the left front of the vehicle;

[0025] Seventh review point: Review the lighting effect 10 meters behind the vehicle;

[0026] Eighth review point: Review the lighting effect at a distance of 6 meters, 30º to the right rear of the vehicle;

[0027] Ninth review point: Review the lighting effects of the road surface and movable green belt.

[0028] The first review point focuses on the vehicle's lighting effects because headlights are essentially spatial optical systems, and their intensity, brightness boundaries, and uniformity vary drastically with viewing distance, horizontal angle, and vertical angle. Only by observing the vehicle dynamically can one discover local dark spots, bright spots, stripes, light distortion, cutoff line jitter, left-right asymmetry caused by lens / reflector assembly deviations, and abrupt changes in light shape under different viewing angles.

[0029] The second review point assesses the lights 3 meters in front of the vehicle, simulating the actual viewing distance of a user, checking the uniformity of the light pattern, dark spots, bright spots, and stripes; checking whether the illumination boundary is clean, regular, and free of stray light or light leakage; the consistency of the left and right lights; and verifying whether the styling features are fully expressed.

[0030] The third review point assesses the lighting effect 10 meters in front of the vehicle. The purpose is to qualitatively verify the overall light shape, visibility, brightness balance, glare risk, left-right symmetry, and regulatory compliance of the lighting fixtures under typical oncoming traffic, following traffic, and road observation distances, taking into account both road safety and the overall vehicle appearance recognition.

[0031] The fourth review point is to review the lighting effect at a distance of 6 meters, 60º to the left front of the vehicle. The purpose is to verify the luminous visibility, light pattern integrity, boundary clarity, lateral stray light control, and left-right consistency of the lights under the critical side front view of the regulations. This ensures the signal recognition function, regulatory compliance, and overall visual quality of the lights in scenarios such as intersections, lateral oncoming traffic, and pedestrian observation. In addition, the lighting effect can also be reviewed intuitively by the lights illuminating the movable green belt on the left.

[0032] The fifth review point: Review the lighting effect at 7 meters away at 45° to the left front of the vehicle. The purpose of reviewing the lighting effect at 7 meters away at 45° to the left front of the vehicle is to verify the luminous visibility, light pattern integrity, boundary clarity, control of lateral stray light and glare, and left-right consistency of the lights under a typical oblique frontal viewing angle. This ensures that the lights meet the regulatory visibility requirements, signal recognition function, and overall vehicle perceived quality in real-world scenarios such as intersections, side traffic, pedestrian observation, and oncoming traffic.

[0033] The sixth review point: review the lighting effect at 10 meters away at 30º to the left front of the vehicle. The purpose is to verify the integrity of the light pattern, the clarity of signal recognition, the uniformity of overall brightness, the consistency of left and right symmetry, and the visibility according to regulations when the lights are viewed from a long distance at an angle in front of the vehicle. This ensures that the lights have good long-distance recognition, visual coordination, and driving safety in typical driving scenarios such as driving straight, following other vehicles, meeting other vehicles, and approaching intersections.

[0034] The seventh review point assesses the lighting effect 10 meters behind the vehicle. The purpose is to verify the signal recognition, light pattern integrity, left-right consistency and regulatory visibility of the rear lights at typical rear viewing distances, ensuring driving safety at the rear of the vehicle and the overall visual quality of the vehicle.

[0035] The eighth review point assesses the lighting effect at a distance of 6 meters 30º to the right rear of the vehicle. The purpose is to verify the visibility, light pattern integrity, signal recognition, and lateral stray light control of the rear lights from a key angled rear viewpoint, ensuring driving safety and regulatory compliance in scenarios such as lane changes, turns, and intersections.

[0036] The ninth review point assesses the lighting effects of the road surface and movable green belts. The purpose is to verify the road lighting quality, glare control, light pollution suppression, and lighting comfort of the vehicle lights, to ensure safe driving at night, compliance with regulations, and to avoid interference with the surrounding environment and other road users.

[0037] Furthermore, Sample A includes a front combination lamp, signal lamps, and interior lamps. The front combination lamp, signal lamp, and interior lamps are fixed in their respective positions on the vehicle lighting evaluation stand, and their installation positions are consistent with those of the lamps on the benchmark vehicle.

[0038] Furthermore, the front combination lights, signal lights, and interior lights are fixed at their respective positions on the vehicle lighting review stand, which is placed in the preset review position in the darkroom, and the installation positions of the front combination lights, signal lights, and interior lights are consistent with those of the corresponding lights in the actual vehicle.

[0039] Furthermore, step S3 includes:

[0040] S301. Front combination lamp illumination effect test: Switch between the street light on mode and the street light off mode, and use an illuminance meter to measure the illuminance of the front lamps on the road surface, the right sidewalk, and the left movable green belt according to the preset review points in the corresponding street light mode; the test standard includes that the illuminance on the road surface should reach at least 100 lx, and the illuminance of the pedestrian crossing and the movable green belt should reach at least 10 lx, and manual review should be carried out;

[0041] S302. Traffic light illumination effect test and review, including traffic light daylight test, traffic light night test and traffic light glare test. An imaging luminance meter is used to measure the brightness distribution of the traffic lights according to the preset review points. The test standards include that the brightness and visible angle meet the regulatory requirements, and the uniformity requirement is that the darkest / brightest part is ≥50%. The traffic lights are manually reviewed based on the traffic light daylight test, traffic light night test and traffic light glare test.

[0042] S303, In-vehicle lighting environment testing and review, including in-vehicle light daylight test, in-vehicle light nighttime test, and in-vehicle light glare test. An imaging luminance meter is used to measure the brightness distribution of the internal lamps according to the preset review points. The uniformity requirement is that the darkest / brightest area is ≥50%. The in-vehicle light daylight test, in-vehicle light nighttime test, and in-vehicle light glare test are used for manual review.

[0043] Furthermore, in step S301, the manual review of the illumination effect of the front combination lights includes the reviewer checking whether the width is large enough, whether the brightness is bright enough, whether the light is uniform, whether the illumination effect on pedestrian crossings and movable green belts is good enough, and whether there is stray light or glare problems; and finding parameters to prevent optical problems through review and measurement.

[0044] Furthermore, in step S302, the traffic light daylight test involves switching the ambient light to daylight mode, with manual review including reviewers assessing the traffic light effect from outside the vehicle. The review assesses whether the traffic light is clearly visible under daylight conditions, its uniformity, and whether sunlight amplifies certain design issues. The traffic light night test involves switching the ambient light to streetlight mode, with reviewers assessing the traffic light effect from outside the vehicle. The review primarily assesses the visibility of the traffic light's design at night, and the brightness and uniformity. The traffic light glare test involves switching the ambient light to either streetlight high-brightness glare mode or daylight high-brightness glare mode, with reviewers assessing the traffic light effect from outside the vehicle. The review primarily assesses whether the traffic light is clearly visible under glare conditions and whether the lamp design causes strong reflections and light pollution.

[0045] Furthermore, in the S303, the interior light daylight test involves switching the ambient lighting to daylight mode. The reviewer assesses the interior lights, reading lights, and ambient lighting effects from inside the vehicle, primarily evaluating whether the interior lights are clearly visible under daylight conditions, their uniformity, and whether sunlight amplifies any design issues. The interior light night test involves switching the ambient lighting to streetlight mode, with reviewers assessing the interior lights, reading lights, and ambient lighting effects from inside the vehicle. The interior light glare test involves switching the ambient lighting to either streetlight high-brightness glare mode or daylight high-brightness glare mode, with reviewers assessing the signal lights from inside the vehicle, primarily evaluating whether the interior lights are clearly visible under glare conditions, whether the light fixture design causes strong reflections, makes it difficult to discern backlight information, and whether it interferes with driving.

[0046] Compared with the prior art, the present invention has the following advantages:

[0047] This invention utilizes the modification and construction of a darkroom to simulate the actual driving environment, pre-setting review points to review the vehicle's lighting during the prototype stage. This helps to more intuitively reflect the development status of the lighting fixtures, identify optical problems such as bright spots, dark areas, and reflections in advance, and also allows styling staff to better understand the vehicle's styling status from various perspectives (such as oncoming vehicles, following vehicles, and exhibitors), which is helpful for subsequent styling design. It is efficient, cost-effective, and contributes to the efficient development and quality improvement of automotive lighting fixtures. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the lighting effect review site layout for this invention. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0050] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in this invention and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0051] It should be noted that the terms "front", "rear", "inner", "outer", "left", "right", etc., used in this invention to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0052] It should be noted that any symbols and or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.

[0053] The following examples are combined with Figure 1 The present invention will be described as follows:

[0054] Example 1:

[0055] A method for testing and evaluating the lighting effects of a vehicle, see [link to relevant documentation]. Figure 1 As shown, the steps include:

[0056] S1. Construct a darkroom for the evaluation to simulate the actual driving environment;

[0057] S2. The evaluation perspective is combined with a darkroom simulation environment, with pre-set evaluation positions and multiple evaluation points;

[0058] S3. Based on the preset review points, conduct tests and reviews on the benchmark vehicles placed at the preset review positions in the darkroom.

[0059] In step S1, the floor of the darkroom is set as a road surface. A movable green belt, a lane line, a sidewalk, and ambient lights are set longitudinally on the road surface. The movable green belt is set to the left of the lane line, the sidewalk is set to the right of the lane line, and the ambient lights are set to the left of the movable green belt and on the sidewalk.

[0060] The ambient lighting includes a street light mode and a natural light mode. The street light mode includes a street light on mode, a street light off mode, and a street light high-brightness glare mode. The natural light mode includes a daylight mode and a daylight high-brightness glare mode. By switching between different modes of the ambient lighting, the driving environment under different lighting conditions can be simulated.

[0061] In step S2, the preset review points include:

[0062] First review point: Review of the vehicle's lighting effects;

[0063] Second review point: Review the lighting effect 3 meters in front of the vehicle;

[0064] Third review point: Review the lighting effect 10 meters in front of the vehicle;

[0065] Fourth review point: Review the lighting effect at a distance of 6 meters, 60º to the left front of the vehicle;

[0066] Fifth review point: Review the lighting effect at a distance of 7 meters, 45º to the left front of the vehicle;

[0067] Sixth review point: Review the lighting effect at a distance of 10 meters, 30º to the left front of the vehicle;

[0068] Seventh review point: Review the lighting effect 10 meters behind the vehicle;

[0069] Eighth review point: Review the lighting effect at a distance of 6 meters, 30º to the right rear of the vehicle;

[0070] Ninth review point: Review the lighting effects of the road surface and movable green belt.

[0071] Step S3 includes:

[0072] S301. Front combination lamp illumination effect test: Switch between the street light on mode and the street light off mode, and use an illuminance meter to measure the illuminance of the front lamps on the road surface, the right sidewalk, and the left movable green belt according to the preset review points in the corresponding street light mode; the test standard includes that the illuminance on the road surface should reach at least 100 lx, and the illuminance of the pedestrian crossing and the movable green belt should reach at least 10 lx, and manual review should be carried out;

[0073] S302. Traffic light illumination effect test and review, including traffic light daylight test, traffic light night test and traffic light glare test. An imaging luminance meter is used to measure the brightness distribution of the traffic lights according to the preset review points. The test standards include that the brightness and visible angle meet the regulatory requirements, and the uniformity requirement is that the darkest / brightest part is ≥50%. The traffic lights are manually reviewed based on the traffic light daylight test, traffic light night test and traffic light glare test.

[0074] S303, In-vehicle lighting environment testing and review, including in-vehicle light daylight test, in-vehicle light nighttime test, and in-vehicle light glare test. An imaging luminance meter is used to measure the brightness distribution of the internal lamps according to the preset review points. The uniformity requirement is that the darkest / brightest area is ≥50%. The in-vehicle light daylight test, in-vehicle light nighttime test, and in-vehicle light glare test are used for manual review.

[0075] In step S301, the manual review of the illumination effect of the front combination lights includes the reviewers checking whether the width is large enough, whether the brightness is bright enough, whether the light is uniform, whether the illumination effect on pedestrian crossings and movable green belts is good enough, and whether there is stray light or glare problems; and finding parameters to prevent optical problems through review and measurement.

[0076] In step S302, the traffic light daylight test involves switching the ambient light to daylight mode, with reviewers assessing the traffic light effect from outside the vehicle. The review assesses whether the traffic light is clearly visible under daylight conditions, its uniformity, and whether sunlight amplifies any design issues. The traffic light night test involves switching the ambient light to streetlight mode, with reviewers assessing the traffic light effect from outside the vehicle. The review primarily assesses the traffic light's design for nighttime visibility, brightness, and uniformity. The traffic light glare test involves switching the ambient light to either streetlight high-brightness glare mode or daylight high-brightness glare mode, with reviewers assessing the traffic light effect from outside the vehicle. The review primarily assesses whether the traffic light is clearly visible under glare conditions and whether the light fixture's design causes strong reflections or light pollution.

[0077] In the S303, the interior light daylight test involves switching the ambient lighting to daylight mode. The reviewer assesses the interior lights, reading lights, and ambient lighting effects from inside the vehicle, focusing on whether the lights are clearly visible under daylight conditions, their uniformity, and whether sunlight amplifies any design issues. The interior light night test involves switching the ambient lighting to streetlight mode, with reviewers assessing the interior lights, reading lights, and ambient lighting effects from inside the vehicle. The interior light glare test involves switching the ambient lighting to either streetlight high-brightness glare mode or daylight high-brightness glare mode, with reviewers assessing the signal lights from inside the vehicle. The reviewer assesses whether the lights are clearly visible under glare conditions, whether the light fixture design causes strong reflections, makes it difficult to identify backlight information, and whether it interferes with driving.

[0078] Example 2:

[0079] A method for testing and evaluating the lighting effects of a vehicle, comprising the following steps:

[0080] S1. Construct a darkroom for the evaluation to simulate the actual driving environment;

[0081] S2. The evaluation perspective is combined with a darkroom simulation environment, with pre-set evaluation positions and multiple evaluation points;

[0082] S3. Based on the preset review points, test and review sample A placed at the preset review position in the darkroom.

[0083] In step S1, the floor of the darkroom is set as a road surface. A movable green belt, a lane line, a sidewalk, and ambient lights are set longitudinally on the road surface. The movable green belt is set to the left of the lane line, the sidewalk is set to the right of the lane line, and the ambient lights are set to the left of the movable green belt and on the sidewalk.

[0084] The ambient lighting includes a street light mode and a natural light mode. The street light mode includes a street light on mode, a street light off mode, and a street light high-brightness glare mode. The natural light mode includes a daylight mode and a daylight high-brightness glare mode. By switching between different modes of the ambient lighting, the driving environment under different lighting conditions can be simulated.

[0085] In step S2, the preset review points include:

[0086] First review point: Review of the vehicle's lighting effects;

[0087] Second review point: Review the lighting effect 3 meters in front of the vehicle;

[0088] Third review point: Review the lighting effect 10 meters in front of the vehicle;

[0089] Fourth review point: Review the lighting effect at a distance of 6 meters, 60º to the left front of the vehicle;

[0090] Fifth review point: Review the lighting effect at a distance of 7 meters, 45º to the left front of the vehicle;

[0091] Sixth review point: Review the lighting effect at a distance of 10 meters, 30º to the left front of the vehicle;

[0092] Seventh review point: Review the lighting effect 10 meters behind the vehicle;

[0093] Eighth review point: Review the lighting effect at a distance of 6 meters, 30º to the right rear of the vehicle;

[0094] Ninth review point: Review the lighting effects of the road surface and movable green belt.

[0095] Sample A includes a front combination light, signal lights, and interior lights. The front combination light, signal lights, and interior lights are fixed in their respective positions on the vehicle lighting evaluation stand, and their installation positions are consistent with those of the lights on the benchmark vehicle.

[0096] The front combination lights, signal lights, and interior lights are fixed at their respective positions on the vehicle lighting review stand. The vehicle lighting review stand is placed at the preset review position in the darkroom, and the installation positions of the front combination lights, signal lights, and interior lights are consistent with the corresponding lights in the actual vehicle.

[0097] Step S3 includes:

[0098] S301. Front combination lamp illumination effect test: Switch between the street light on mode and the street light off mode, and use an illuminance meter to measure the illuminance of the front lamps on the road surface, the right sidewalk, and the left movable green belt according to the preset review points in the corresponding street light mode; the test standard includes that the illuminance on the road surface should reach at least 100 lx, and the illuminance of the pedestrian crossing and the movable green belt should reach at least 10 lx, and manual review should be carried out;

[0099] S302. Traffic light illumination effect test and review, including traffic light daylight test, traffic light night test and traffic light glare test. An imaging luminance meter is used to measure the brightness distribution of the traffic lights according to the preset review points. The test standards include that the brightness and visible angle meet the regulatory requirements, and the uniformity requirement is that the darkest / brightest part is ≥50%. The traffic lights are manually reviewed based on the traffic light daylight test, traffic light night test and traffic light glare test.

[0100] S303, In-vehicle lighting environment testing and review, including in-vehicle light daylight test, in-vehicle light nighttime test, and in-vehicle light glare test. An imaging luminance meter is used to measure the brightness distribution of the internal lamps according to the preset review points. The uniformity requirement is that the darkest / brightest area is ≥50%. The in-vehicle light daylight test, in-vehicle light nighttime test, and in-vehicle light glare test are used for manual review.

[0101] In step S301, the manual review of the illumination effect of the front combination lights includes the reviewers checking whether the width is large enough, whether the brightness is bright enough, whether the light is uniform, whether the illumination effect on pedestrian crossings and movable green belts is good enough, and whether there is stray light or glare problems; and finding parameters to prevent optical problems through review and measurement.

[0102] In step S302, the traffic light daylight test involves switching the ambient light to daylight mode, with reviewers assessing the traffic light effect from outside the vehicle. The review assesses whether the traffic light is clearly visible under daylight conditions, its uniformity, and whether sunlight amplifies any design issues. The traffic light night test involves switching the ambient light to streetlight mode, with reviewers assessing the traffic light effect from outside the vehicle. The review primarily assesses the traffic light's design for nighttime visibility, brightness, and uniformity. The traffic light glare test involves switching the ambient light to either streetlight high-brightness glare mode or daylight high-brightness glare mode, with reviewers assessing the traffic light effect from outside the vehicle. The review primarily assesses whether the traffic light is clearly visible under glare conditions and whether the light fixture's design causes strong reflections or light pollution.

[0103] In the S303, the interior light daylight test involves switching the ambient lighting to daylight mode. The reviewer assesses the interior lights, reading lights, and ambient lighting effects from inside the vehicle, focusing on whether the lights are clearly visible under daylight conditions, their uniformity, and whether sunlight amplifies any design issues. The interior light night test involves switching the ambient lighting to streetlight mode, with reviewers assessing the interior lights, reading lights, and ambient lighting effects from inside the vehicle. The interior light glare test involves switching the ambient lighting to either streetlight high-brightness glare mode or daylight high-brightness glare mode, with reviewers assessing the signal lights from inside the vehicle. The reviewer assesses whether the lights are clearly visible under glare conditions, whether the light fixture design causes strong reflections, makes it difficult to identify backlight information, and whether it interferes with driving.

[0104] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for testing and evaluating the lighting effect of a vehicle, characterized by the following steps: include: S1. Construct the darkroom required for the evaluation to simulate the actual driving environment; S2. The evaluation perspective is combined with a darkroom simulation environment, with pre-set evaluation positions and multiple evaluation points; S3. Based on the preset review points, test and review the A sample or the benchmark vehicle placed at the preset review position in the darkroom.

2. The method for testing and evaluating the overall vehicle lighting effect according to claim 1, characterized in that, In step S1, the floor of the darkroom is set as a road surface. A movable green belt, a lane line, a sidewalk, and ambient lights are set longitudinally on the road surface. The movable green belt is set to the left of the lane line, the sidewalk is set to the right of the lane line, and the ambient lights are set to the left of the movable green belt and on the sidewalk.

3. The method for testing and evaluating the overall vehicle lighting effect according to claim 2, characterized in that, The ambient light includes a street light mode and a natural light mode. The street light mode includes a street light on mode, a street light off mode, and a street light high-brightness glare mode. The natural light mode includes a daylight mode and a daylight high-brightness glare mode. By switching between different modes of the ambient light, the driving environment under different lighting conditions can be simulated.

4. The method for testing and evaluating the overall vehicle lighting effect according to claim 1, characterized in that, In step 2, the preset review points include: First review point: Review of the vehicle's lighting effects; Second review point: Review the lighting effect 3 meters in front of the vehicle; Third review point: Review the lighting effect 10 meters in front of the vehicle; Fourth review point: Review the lighting effect at a distance of 6 meters, 60º to the left front of the vehicle; Fifth review point: Review the lighting effect at a distance of 7 meters, 45º to the left front of the vehicle; Sixth review point: Review the lighting effect at a distance of 10 meters, 30º to the left front of the vehicle; Seventh review point: Review the lighting effect 10 meters behind the vehicle; Eighth review point: Review the lighting effect at a distance of 6 meters, 30º to the right rear of the vehicle; Ninth review point: Review the lighting effects of the road surface and movable green belt.

5. The method for testing and evaluating the overall vehicle lighting effect according to claim 1, characterized in that, Sample A includes a front combination light, a signal light, and an interior light. The front combination light, signal light, and interior light are fixed at corresponding positions on the vehicle lighting evaluation stand, and their installation positions are consistent with those of the lights on the benchmark vehicle.

6. The method for testing and evaluating the overall vehicle lighting effect according to claim 5, characterized in that, The front combination lights, signal lights, and interior lights are fixed at their respective positions on the vehicle lighting review stand, which is placed at a preset review position in the darkroom, and the installation positions of the front combination lights, signal lights, and interior lights are consistent with those of the corresponding lights in the actual vehicle.

7. The method for testing and evaluating the overall vehicle lighting effect according to claim 1, characterized in that, Step S3 includes: S301. Front combination lamp illumination effect test: Switch between the street light on mode and the street light off mode, and use an illuminance meter to measure the illuminance of the front lamps on the road surface, the right sidewalk, and the left movable green belt according to the preset review points in the corresponding street light mode; the test standard includes that the illuminance on the road surface should reach at least 100 lx, and the illuminance of the pedestrian crossing and the movable green belt should reach at least 10 lx, and manual review should be carried out; S302. Traffic light illumination effect test and review, including traffic light daylight test, traffic light night test and traffic light glare test. An imaging luminance meter is used to measure the brightness distribution of the traffic lights according to the preset review points. The test standards include that the brightness and visible angle meet the regulatory requirements, and the uniformity requirement is that the darkest / brightest part is ≥50%. The traffic lights are manually reviewed based on the traffic light daylight test, traffic light night test and traffic light glare test. S303, In-vehicle lighting environment testing and review, including in-vehicle light daylight test, in-vehicle light nighttime test, and in-vehicle light glare test. An imaging luminance meter is used to measure the brightness distribution of the internal lamps according to the preset review points. The uniformity requirement is that the darkest / brightest area is ≥50%. The in-vehicle light daylight test, in-vehicle light nighttime test, and in-vehicle light glare test are used for manual review.

8. The method for testing and evaluating the overall vehicle lighting effect according to claim 7, characterized in that, In step S301, the manual review of the illumination effect of the front combination lights includes the reviewers checking whether the width is large enough, whether the brightness is bright enough, whether the light is uniform, whether the illumination effect on pedestrian crossings and movable green belts is good enough, and whether there is stray light or glare problems; and finding parameters to prevent optical problems through review and measurement.

9. The method for testing and evaluating the overall vehicle lighting effect according to claim 7, characterized in that, In step S302, the traffic light daylight test involves switching the ambient light to daylight mode, with reviewers assessing the traffic light effect from outside the vehicle. The review assesses whether the traffic light is clearly visible under daylight conditions, its uniformity, and whether sunlight amplifies any design issues. The traffic light night test involves switching the ambient light to streetlight mode, with reviewers assessing the traffic light effect from outside the vehicle. The review primarily assesses the traffic light's design for nighttime visibility, brightness, and uniformity. The traffic light glare test involves switching the ambient light to either streetlight high-brightness glare mode or daylight high-brightness glare mode, with reviewers assessing the traffic light effect from outside the vehicle. The review primarily assesses whether the traffic light is clearly visible under glare conditions and whether the light fixture's design causes strong reflections or light pollution.

10. The method for testing and evaluating the overall vehicle lighting effect according to claim 7, characterized in that, In the S303, the interior light daylight test involves switching the ambient lighting to daylight mode. The reviewer assesses the interior lights, reading lights, and ambient lighting effects from inside the vehicle, focusing on whether the lights are clearly visible under daylight conditions, their uniformity, and whether sunlight amplifies any design issues. The interior light night test involves switching the ambient lighting to streetlight mode, with reviewers assessing the interior lights, reading lights, and ambient lighting effects from inside the vehicle. The interior light glare test involves switching the ambient lighting to either streetlight high-brightness glare mode or daylight high-brightness glare mode, with reviewers assessing the signal lights from inside the vehicle. The reviewer assesses whether the lights are clearly visible under glare conditions, whether the light fixture design causes strong reflections, makes it difficult to identify backlight information, and whether it interferes with driving.

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