CN104849024A - Evaluation method for vehicle headlight - Google Patents
Evaluation method for vehicle headlight Download PDFInfo
- Publication number
- CN104849024A CN104849024A CN201410803287.1A CN201410803287A CN104849024A CN 104849024 A CN104849024 A CN 104849024A CN 201410803287 A CN201410803287 A CN 201410803287A CN 104849024 A CN104849024 A CN 104849024A
- Authority
- CN
- China
- Prior art keywords
- detection zone
- distance light
- dipped beam
- light detection
- summit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention discloses an evaluation method for a vehicle headlight. The evaluation method includes obtaining the center of a to-be-evaluated vehicle and obtaining requirements for passing light level of the to-be-evaluated vehicle; establishing a coordinate system by taking the center of the to-be-evaluated vehicle as the origin; determining a first passing light detection zone, a second passing light detection zone and a third passing light detection zone according to the requirements for passing light level; turning on the dipped headlight of the to-be-evaluated vehicle and detecting the passing light luminance of the first passing light detection zone, the second passing light detection zone and the third passing light detection zone; and judging whether the level of the dipped headlight meets the requirements for passing light level or not according to the passing light luminance of the first passing light detection zone, the second passing light detection zone and the third passing light detection zone. According to the invention, lighting patterns of distance light and passing light are guaranteed and width and distance of distance light and passing light are ensured. Besides, evaluation requirements of the light are made in the pre-design phase and actions can be taken to meet the requirements during the design process, so that custom complains in the later phase can be avoided.
Description
Technical field
The present invention relates to technical field of vehicle detection, particularly relate to a kind of evaluating method of automotive headlamp.
Background technology
In correlation technique, because the regulation of national standard for headlight for vehicle light luminous intensity distribution is only to specify for the quantification of point, such as, as shown in Fig. 1 (a) He Fig. 1 (b), Fig. 1 (a), for national standard is for the illumination requirement of vehicle dipped headlights, puts individually when which specify dipped headlights luminous intensity distribution or the scope of brightness value in region; Fig. 1 (b) is for national standard is for the illumination requirement of vehicular high beam lamp, put individually when which specify high beam luminous intensity distribution or the scope of brightness value in region, so, evaluation and test for automotive headlamp distance-light can only be judge from the brightness value quantized, and specify only the numerical value of indivedual several point according to the brightness value that national legislation judges.
But, because national standard only exists indivedual point for high beam and dipped headlights illumination requirement, so it is poor to make the distance light of automotive headlamp and dipped beam impinge upon light type on road surface, width is inadequate, brightness is inadequate, and light is far away not, thus bring potential safety hazard at nighttime driving to driver, cause client to be discontented with.
Therefore, how while the requirement of satisfy hierarchy light fixture regulation for luminous intensity distribution, in light type and illumination, a standard quantized is provided to solve with the problems demand avoiding client to complain to the light of automotive headlamp.
Summary of the invention
Object of the present invention is intended to solve one of technical matters in correlation technique at least to a certain extent.
For this reason, one object of the present invention is the evaluating method proposing a kind of automotive headlamp.The method ensure that the light type of distance-light effectively, ensure that width and the length of distance-light, thus has effectively ensured the driving illumination of driver; On the other hand, namely propose to evaluate requirement to light fixture early stage in design, perform during design, avoid the complaint of client's later stage to distance-light.
To achieve these goals, the evaluating method of the automotive headlamp of first aspect present invention embodiment, comprising: the center obtaining vehicle to be measured, and obtains the dipped beam class requirement of described vehicle to be measured; With the center of described vehicle to be measured for true origin sets up coordinate system; The first dipped beam detection zone in described coordinate system, the second dipped beam detection zone and the 3rd dipped beam detection zone is determined according to described dipped beam class requirement; Open the dipped headlights of described vehicle to be measured, and detect the dipped beam brightness in described first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone respectively; Judge whether the grade of described dipped headlights meets described dipped beam class requirement according to the dipped beam brightness in the described first dipped beam detection zone detected, the second dipped beam detection zone and the 3rd dipped beam detection zone.
According to the evaluating method of the automotive headlamp of the embodiment of the present invention, region on the basis of existing technology for illumination divides, and corresponding brightness value lower limit is defined to each region, on the one hand, effectively ensure that the light type of distance-light, ensure that width and the length of distance-light, thus effectively ensure the driving illumination of driver; On the other hand, namely propose to evaluate requirement to light fixture early stage in design, perform during design, avoid the complaint of client's later stage to distance-light.
According to one embodiment of present invention, described evaluating method also comprises: the distance light class requirement obtaining described vehicle to be measured; The first distance light detection zone in described coordinate system, the second distance light detection zone and the 3rd distance light detection zone is determined according to described distance light class requirement; Open the high beam of described vehicle to be measured, and detect the distance light brightness in described first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone respectively; Judge whether the grade of described high beam meets described distance light class requirement according to the distance light brightness in the described first distance light detection zone detected, the second distance light detection zone and the 3rd distance light detection zone.
According to one embodiment of present invention, described first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone have the first to the 5th summit respectively, and the coordinate on the described first to the 5th summit of described first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone is searched the corresponding dipped beam coordinate table of comparisons according to described dipped beam class requirement and obtained.
According to one embodiment of present invention, described distance light class requirement has the first to the 5th distance light grade, wherein, when described distance light class requirement is described first distance light grade, described first distance light detection zone has the 6th to the 9th summit, described second distance light detection zone and the 3rd distance light detection zone have the tenth to the 15 summit respectively, described 6th to the 9th summit of described first distance light detection zone, and the coordinate on described tenth to the 15 summit of described second distance light detection zone and the 3rd distance light detection zone searches corresponding distance light coordinate table of comparisons acquisition according to described first distance light grade, when described distance light class requirement is described second distance light grade, described first distance light detection zone and the second distance light detection zone have the 16 to the 20 summit respectively, described 3rd distance light detection zone has the 21 to the 27 summit, and the coordinate on described 16 to the 20 summit of described first distance light detection zone and the second distance light detection zone and described 21 to the 27 summit of described 3rd distance light detection zone is searched the corresponding distance light coordinate table of comparisons according to described second distance light grade and obtained, when described distance light class requirement is described 3rd distance light grade, described first distance light detection zone has the 28 to the 32 summit, described second distance light detection zone has the the 30th the three to three ten nine summit, described 3rd distance light detection zone has the 40 to the 45 summit, described 28 to the 32 summit of described first distance light detection zone, the coordinate on the described 30th the three to three ten nine summit of described second distance light detection zone and described 40 to the 45 summit of described 3rd distance light detection zone is searched the corresponding distance light coordinate table of comparisons according to described 3rd distance light grade and is obtained, when described distance light class requirement is described 4th distance light grade, described first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone have the 46 to the 52 summit respectively, and the coordinate on described 46 to the 52 summit of described first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone is searched the corresponding distance light coordinate table of comparisons according to described 4th distance light grade and obtained, when described distance light class requirement is described 5th distance light grade, described first distance light detection zone has the 53 to the 57 summit, described second distance light detection zone and the 3rd distance light detection zone have the 58 to the 64 summit respectively, and the coordinate on described 53 to the 57 summit of described first distance light detection zone and described 58 to the 64 summit of described second distance light detection zone and the 3rd distance light detection zone is searched the corresponding distance light coordinate table of comparisons according to described 5th distance light grade and obtained.
According to one embodiment of present invention, described second dipped beam detection zone is around described first dipped beam detection zone, and described 3rd dipped beam detection zone is around described first dipped beam detection zone and the second dipped beam detection zone.
Wherein, in an embodiment of the present invention, described second dipped beam detection zone is between described first dipped beam detection zone and described 3rd dipped beam detection zone.
According to one embodiment of present invention, described second distance light detection zone is around described first distance light detection zone, and described 3rd distance light detection zone is around described first distance light detection zone and the second distance light detection zone.
Wherein, in an embodiment of the present invention, described second distance light detection zone is between described first distance light detection zone and described 3rd distance light detection zone.
According to one embodiment of present invention, in described coordinate system, the unit of longitudinal cell is 1m, and the unit of lateral cell lattice is 5m.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein,
Fig. 1 (a) is the schematic diagram of national standard for the illumination requirement of vehicle dipped headlights;
Fig. 1 (b) is the schematic diagram of national standard for the illumination requirement of vehicular high beam lamp;
Fig. 2 is according to an embodiment of the invention for the process flow diagram of the evaluating method of dipped headlights in automotive headlamp;
Fig. 3 (a) is the schematic diagram of the first dipped beam detection zone in the first dipped beam grade according to the embodiment of the present invention, the second dipped beam detection zone and the 3rd dipped beam detection zone;
Fig. 3 (b) is the schematic diagram of the first dipped beam detection zone in the second dipped beam grade according to the embodiment of the present invention, the second dipped beam detection zone and the 3rd dipped beam detection zone;
Fig. 3 (c) is the schematic diagram of the first dipped beam detection zone in the 3rd dipped beam grade according to the embodiment of the present invention, the second dipped beam detection zone and the 3rd dipped beam detection zone;
Fig. 3 (d) is the schematic diagram of the first dipped beam detection zone in the 4th dipped beam grade according to the embodiment of the present invention, the second dipped beam detection zone and the 3rd dipped beam detection zone;
Fig. 3 (e) is the schematic diagram of the first dipped beam detection zone in the 5th dipped beam grade according to the embodiment of the present invention, the second dipped beam detection zone and the 3rd dipped beam detection zone;
Fig. 4 is according to an embodiment of the invention for the process flow diagram of the evaluating method of high beam in automotive headlamp;
Fig. 5 (a) is the schematic diagram of the first distance light detection zone in the first distance light grade according to the embodiment of the present invention, the second distance light detection zone and the 3rd distance light detection zone;
Fig. 5 (b) is the schematic diagram of the first distance light detection zone in the second distance light grade according to the embodiment of the present invention, the second distance light detection zone and the 3rd distance light detection zone;
Fig. 5 (c) is the schematic diagram of the first distance light detection zone in the 3rd distance light grade according to the embodiment of the present invention, the second distance light detection zone and the 3rd distance light detection zone;
Fig. 5 (d) is the schematic diagram of the first distance light detection zone in the 4th distance light grade according to the embodiment of the present invention, the second distance light detection zone and the 3rd distance light detection zone; And
Fig. 5 (e) is the schematic diagram of the first distance light detection zone in the 5th distance light grade according to the embodiment of the present invention, the second distance light detection zone and the 3rd distance light detection zone.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
At present, evaluation for automotive headlamp distance-light can only be judge from the brightness value quantized, and the numerical value of indivedual several point is specify only according to the brightness value that national legislation judges, and the needs of safe driving cannot be met for the brightness of several point driver, and light fixture producer is also the standard with reference to national legislation when design, this makes vehicle after main engine plants sell, cause client for the complaint of light undoubtedly.For this reason, the present invention proposes a kind of evaluating method of automotive headlamp, while the present invention is intended to meet the requirement of light fixture regulation for luminous intensity distribution, a standard quantized is provided in light type and illumination to the light of headlight, avoids the complaint of client.Particularly, below with reference to the accompanying drawings the evaluating method of the automotive headlamp of the embodiment of the present invention is described.
It should be noted that, headlight due to vehicle comprises dipped headlights and high beam, the irradiation area of dipped headlights and high beam and irradiation brightness are all different, so the evaluating standard of dipped headlights and high beam has difference, will introduce the evaluating method of dipped headlights and high beam respectively below.
Fig. 2 is according to an embodiment of the invention for the process flow diagram of the evaluating method of dipped headlights in automotive headlamp.As shown in Figure 2, can should comprise for the evaluating method of dipped headlights in automotive headlamp:
S201, obtains the center of vehicle to be measured, and obtains the dipped beam class requirement of vehicle to be measured.
It should be noted that, the present invention mainly for the evaluation index of distance-light in automotive headlamp, by distance light and dipped beam on the ground according to width and irradiate distance and be divided into A, B, C district (as dipped headlights: the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone; High beam: the first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone), and the minimal illumination in each region is defined, finally respectively the illuminance of ground of distance light and dipped beam is divided into 5 grades, as the first to the 5th dipped beam grade, the first to the 5th distance light grade.
Particularly, ready vehicle drive to be measured can be entered district to be detected, and storing cycle is good, using automobile body forefront center to be measured as the center of vehicle to be measured, and obtain the dipped beam class requirement of this vehicle to be measured.Wherein, in an embodiment of the present invention, dipped beam class requirement can have five dipped beam grades, be respectively the first to the 5th dipped beam grade, in each dipped beam grade, there is respective class requirement, such as, each dipped beam grade has the dipped beam brightness requirement etc. of respective dipped beam detection zone and each dipped beam detection zone.
S202, with the center of vehicle to be measured for true origin sets up coordinate system.
Wherein, in an embodiment of the present invention, in coordinate system, the unit of longitudinal cell is 1m, and the unit of lateral cell lattice is 5m.Such as, can automobile body forefront center to be measured be true origin (0,0), draw coordinate line on the ground: the every lattice 1m of ordinate, forward draws 8m, and negative sense draws 8m; The every lattice 5m of horizontal ordinate, forward draws 50m.
S203, according to the first dipped beam detection zone in dipped beam class requirement determination coordinate system, the second dipped beam detection zone and the 3rd dipped beam detection zone.
Wherein, in an embodiment of the present invention, first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone have the first to the 5th summit respectively, and the coordinate on the first to the 5th summit of the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone is searched the corresponding dipped beam coordinate table of comparisons according to dipped beam class requirement and obtained.Particularly, the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone can be drawn respectively in a coordinate system according to the coordinate figure that dipped beam detection zone in dipped beam class requirement is corresponding.That is, the coordinate on the first to the 5th summit in the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone is found respectively in dipped beam class requirement, and respectively the coordinate on five of the regional found summits is marked in a coordinate system, then five of each region summits are carried out line to obtain each dipped beam detection zone in coordinate system.
It should be noted that, in one embodiment of the invention, the second dipped beam detection zone is around the first dipped beam detection zone, and the 3rd dipped beam detection zone is around the first dipped beam detection zone and the second dipped beam detection zone.Wherein, in an embodiment of the present invention, the second dipped beam detection zone is between the first dipped beam detection zone and the 3rd dipped beam detection zone.
To the specific implementation process according to the first dipped beam detection zone in dipped beam class requirement determination coordinate system, the second dipped beam detection zone and the 3rd dipped beam detection zone be illustrated below:
For example, suppose that dipped beam class requirement has the first to the 5th dipped beam grade, Fig. 3 (a) is the first dipped beam detection zone in the first dipped beam grade, the schematic diagram of the second dipped beam detection zone and the 3rd dipped beam detection zone, Fig. 3 (b) is the first dipped beam detection zone in the second dipped beam grade, the schematic diagram of the second dipped beam detection zone and the 3rd dipped beam detection zone, Fig. 3 (c) is the first dipped beam detection zone in the 3rd dipped beam grade, the schematic diagram of the second dipped beam detection zone and the 3rd dipped beam detection zone, Fig. 3 (d) is the first dipped beam detection zone in the 4th dipped beam grade, the schematic diagram of the second dipped beam detection zone and the 3rd dipped beam detection zone, Fig. 3 (e) is the first dipped beam detection zone in the 5th dipped beam grade, the schematic diagram of the second dipped beam detection zone and the 3rd dipped beam detection zone, be the 5th dipped beam grade for dipped beam class requirement, namely when whether the grade of the dipped headlights detecting vehicle to be measured meets the 5th dipped beam grade, can according to the first dipped beam detection zone in the 5th dipped beam grade, coordinate figure corresponding to the second dipped beam detection zone and the 3rd dipped beam detection zone draws the first dipped beam detection zone respectively in a coordinate system, second dipped beam detection zone and the 3rd dipped beam detection zone.Such as, the technique of painting of the first dipped beam detection zone: suppose that five summits of the first dipped beam detection zone represent with A, B, C, D, E respectively, can find out that the coordinate of often is respectively A (10 by a-quadrant in such as Fig. 3 (e), 2.5), B (27,1.5), C (40,0), D (40,-1.5), E (10,-4), these summits are drawn according in every point coordinate value coordinate system on the ground, then connect with straight line, form a pentagon, be the first dipped beam detection zone; The technique of painting of the second dipped beam detection zone: suppose that five summits of the second dipped beam detection zone represent with alphabetical F, G, H, I, J respectively, can find out that the coordinate of often is respectively F (10 by B region in Fig. 3 (e), 3.5), G (40,2.5), H (50,-1.5), I (40,-4), J (10,-4), these summits are drawn according in every point coordinate value coordinate system on the ground, then connect with straight line, form a pentagon, be the second dipped beam detection zone; The technique of painting of the 3rd dipped beam detection zone: suppose that five summits of the 3rd dipped beam detection zone represent with alphabetical K, L, M, N, P respectively, can find out that the coordinate of often is respectively K (10 by C region in Fig. 3 (e), 4.3), L (45,2.5), M (62,-1.5), N (50,-4.3), P (10,-4.3), these summits are drawn according in every point coordinate value coordinate system on the ground, then connect with straight line, form a pentagon, be the 3rd dipped beam detection zone.
S204, opens the dipped headlights of vehicle to be measured, and detects the dipped beam brightness in the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone respectively.
Particularly, open the dipped headlights of vehicle to be measured, and measure the brightness value (i.e. dipped beam brightness) of the point in the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone respectively by illuminometer.
According to the dipped beam brightness in the first dipped beam detection zone detected, the second dipped beam detection zone and the 3rd dipped beam detection zone, S205, judges whether the grade of dipped headlights meets dipped beam class requirement.
Particularly, all meet the dipped beam brightness regulation in dipped beam class requirement when the dipped beam brightness in the first dipped beam detection zone detected, the second dipped beam detection zone and the 3rd dipped beam detection zone, then can judge that the grade this time detecting dipped headlights meets dipped beam class requirement.
Such as, whether the first dipped beam grade supposing in the dipped headlights of this testing vehicle meets the dipped beam brightness regulation in the first dipped beam grade in dipped beam class requirement, first can obtain the first dipped beam grade, and the first dipped beam detection zone got from the first dipped beam grade on ground in coordinate system, the coordinate figure on each summit in the second dipped beam detection zone and the 3rd dipped beam detection zone, corresponding dipped beam detection zone is determined according to each apex coordinate value, the first dipped beam detection zone is measured respectively afterwards by illuminometer, the brightness value of the point in the second dipped beam detection zone and the 3rd dipped beam detection zone, and judge whether the first dipped beam grade of this time test dipped headlights meets the first dipped beam grade in dipped beam class requirement according to testing result.
The evaluation and test principle that should be appreciated that high beam and dipped headlights is identical, and just evaluating standard is different, and namely when detecting the distance light detection zone of high beam, its corresponding coordinate figure and distance light detection zone coordinate are according to the corresponding parameter in distance light class requirement.Evaluating method for high beam in automotive headlamp will be introduced below.
Fig. 4 is according to an embodiment of the invention for the process flow diagram of the evaluating method of high beam in automotive headlamp.As shown in Figure 4, can should comprise for the evaluating method of high beam in automotive headlamp:
S401, obtains the center of vehicle to be measured, and obtains the distance light class requirement of vehicle to be measured.
S402, with the center of vehicle to be measured for true origin sets up coordinate system.
S403, according to the first distance light detection zone in distance light class requirement determination coordinate system, the second distance light detection zone and the 3rd distance light detection zone.
Wherein, in an embodiment of the present invention, distance light class requirement has the first to the 5th distance light grade, wherein, when distance light class requirement is the first distance light grade, first distance light detection zone has the 6th to the 9th summit, second distance light detection zone and the 3rd distance light detection zone have the tenth to the 15 summit respectively, and the coordinate on the tenth to the 15 summit of the 6th to the 9th summit of the first distance light detection zone and the second distance light detection zone and the 3rd distance light detection zone is searched the corresponding distance light coordinate table of comparisons according to the first distance light grade and obtained;
When distance light class requirement is the second distance light grade, first distance light detection zone and the second distance light detection zone have the 16 to the 20 summit respectively, 3rd distance light detection zone has the 21 to the 27 summit, and the coordinate on the 16 to the 20 summit of the first distance light detection zone and the second distance light detection zone and the 21 to the 27 summit of the 3rd distance light detection zone is searched the corresponding distance light coordinate table of comparisons according to the second distance light grade and obtained;
When distance light class requirement is the 3rd distance light grade, first distance light detection zone has the 28 to the 32 summit, second distance light detection zone has the the 30th the three to three ten nine summit, 3rd distance light detection zone has the 40 to the 45 summit, and the coordinate on the 40 to the 45 summit of the 28 to the 32 summit of the first distance light detection zone, the the 30th the three to three of the second distance light detection zone the ten nine summit and the 3rd distance light detection zone is searched the corresponding distance light coordinate table of comparisons according to the 3rd distance light grade and obtained;
When distance light class requirement is the 4th distance light grade, first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone have the 46 to the 52 summit respectively, and the coordinate on the 46 to the 52 summit of the first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone is searched the corresponding distance light coordinate table of comparisons according to the 4th distance light grade and obtained;
When distance light class requirement is the 5th distance light grade, first distance light detection zone has the 53 to the 57 summit, second distance light detection zone and the 3rd distance light detection zone have the 58 to the 64 summit respectively, and the coordinate on the 53 to the 57 summit of the first distance light detection zone and the 58 to the 64 summit of the second distance light detection zone and the 3rd distance light detection zone is searched the corresponding distance light coordinate table of comparisons according to the 5th distance light grade and obtained.
Particularly, the first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone can be drawn respectively in a coordinate system according to the coordinate figure that distance light detection zone in different distance light grade is corresponding.That is, the apex coordinate of corresponding first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone is found respectively in different distance light grade, and respectively the apex coordinate of the regional found is marked in a coordinate system, then each summit in each region is carried out line to obtain each distance light detection zone in coordinate system.
It should be noted that, in one embodiment of the invention, the second distance light detection zone is around the first distance light detection zone, and the 3rd distance light detection zone is around the first distance light detection zone and the second distance light detection zone.Wherein, in an embodiment of the present invention, the second distance light detection zone is between the first distance light detection zone and the 3rd distance light detection zone.
To the specific implementation process according to the first distance light detection zone in distance light class requirement determination coordinate system, the second distance light detection zone and the 3rd distance light detection zone be illustrated below:
For example, suppose that distance light class requirement has the first to the 5th distance light grade, Fig. 5 (a) is the first distance light detection zone in the first distance light grade, the schematic diagram of the second distance light detection zone and the 3rd distance light detection zone, Fig. 5 (b) is the first distance light detection zone in the second distance light grade, the schematic diagram of the second distance light detection zone and the 3rd distance light detection zone, Fig. 5 (c) is the first distance light detection zone in the 3rd distance light grade, the schematic diagram of the second distance light detection zone and the 3rd distance light detection zone, Fig. 5 (d) is the first distance light detection zone in the 4th distance light grade, the schematic diagram of the second distance light detection zone and the 3rd distance light detection zone, Fig. 5 (e) is the first distance light detection zone in the 5th distance light grade, the schematic diagram of the second distance light detection zone and the 3rd distance light detection zone, be the 5th distance light grade for distance light class requirement, namely when whether the grade of the high beam detecting vehicle to be measured meets the 5th distance light grade, can according to the first distance light detection zone in the 5th distance light grade, coordinate figure corresponding to the second distance light detection zone and the 3rd distance light detection zone draws the first distance light detection zone respectively in a coordinate system, second distance light detection zone and the 3rd distance light detection zone.Such as, due to the 5th distance light grade for evaluation and test benchmark, the technique of painting of the first distance light detection zone in 5th distance light grade: suppose that 5 summits of the first distance light detection zone represent with a, b, c, d, e respectively, can find out that the coordinate of often is respectively a (10 by a-quadrant in Fig. 5 (e), 4), b (90,2.5), c (100,0), d (90,-2.5), e (10,-4), draw these summits according in every point coordinate value coordinate system on the ground, then connect with straight line, form a pentagon, be the first distance light detection zone; The technique of painting of the second distance light detection zone: suppose that 7 summits of the second distance light detection zone represent with alphabetical f, g, h, i, j, k, l respectively, can find out that the coordinate of often is respectively f (10 by B region in Fig. 5 (e), 4.6), g (120,3.5), h (145,2.5), i (152.5,0), j (145,-2.5), k (120,-3.5), l (10,-4), draw these summits according in every point coordinate value coordinate system on the ground, then connect with straight line, form a figure, be the second distance light detection zone; The technique of painting of the 3rd distance light detection zone: suppose that 7 summits of the 3rd distance light detection zone represent with alphabetical m, n, p, q, r, s, t respectively, can find out that the coordinate of often is respectively m (10 by C region in Fig. 5 (e), 4.6), n (150,6), p (210,2.5), q (220,0), r (210,-2.5), s (150,-6), t (10,-4.6), draw these summits according in every point coordinate value coordinate system on the ground, then connect with straight line, form a figure, be the 3rd distance light detection zone.
S404, opens the high beam of vehicle to be measured, and detects the distance light brightness in the first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone respectively.
According to the distance light brightness in the first distance light detection zone detected, the second distance light detection zone and the 3rd distance light detection zone, S405, judges whether the grade of high beam meets distance light class requirement.
According to the evaluating method of the automotive headlamp of the embodiment of the present invention, region on the basis of existing technology for illumination divides, and corresponding brightness value lower limit is defined to each region, on the one hand, effectively ensure that the light type of distance-light, ensure that width and the length of distance-light, thus effectively ensure the driving illumination of driver; On the other hand, namely propose to evaluate requirement to light fixture early stage in design, perform during design, avoid the complaint of client's later stage to distance-light.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this instructions or example and different embodiment or example can carry out combining and combining by those skilled in the art.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
Describe and can be understood in process flow diagram or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this instructions, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), ROM (read-only memory) (ROM), erasablely edit ROM (read-only memory) (EPROM or flash memory), fiber device, and portable optic disk ROM (read-only memory) (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanning to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer memory.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be ROM (read-only memory), disk or CD etc.Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (9)
1. an evaluating method for automotive headlamp, is characterized in that, comprises the following steps:
Obtain the center of vehicle to be measured, and obtain the dipped beam class requirement of described vehicle to be measured;
With the center of described vehicle to be measured for true origin sets up coordinate system;
The first dipped beam detection zone in described coordinate system, the second dipped beam detection zone and the 3rd dipped beam detection zone is determined according to described dipped beam class requirement;
Open the dipped headlights of described vehicle to be measured, and detect the dipped beam brightness in described first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone respectively;
Judge whether the grade of described dipped headlights meets described dipped beam class requirement according to the dipped beam brightness in the described first dipped beam detection zone detected, the second dipped beam detection zone and the 3rd dipped beam detection zone.
2. the evaluating method of automotive headlamp as claimed in claim 1, is characterized in that, also comprise:
Obtain the distance light class requirement of described vehicle to be measured;
The first distance light detection zone in described coordinate system, the second distance light detection zone and the 3rd distance light detection zone is determined according to described distance light class requirement;
Open the high beam of described vehicle to be measured, and detect the distance light brightness in described first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone respectively;
Judge whether the grade of described high beam meets described distance light class requirement according to the distance light brightness in the described first distance light detection zone detected, the second distance light detection zone and the 3rd distance light detection zone.
3. the evaluating method of automotive headlamp as claimed in claim 1, it is characterized in that, described first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone have the first to the 5th summit respectively, and the coordinate on the described first to the 5th summit of described first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone is searched the corresponding dipped beam coordinate table of comparisons according to described dipped beam class requirement and obtained.
4. the evaluating method of automotive headlamp as claimed in claim 2, it is characterized in that, described distance light class requirement has the first to the 5th distance light grade, wherein,
When described distance light class requirement is described first distance light grade, described first distance light detection zone has the 6th to the 9th summit, described second distance light detection zone and the 3rd distance light detection zone have the tenth to the 15 summit respectively, and the coordinate on described tenth to the 15 summit of described 6th to the 9th summit of described first distance light detection zone and described second distance light detection zone and the 3rd distance light detection zone is searched the corresponding distance light coordinate table of comparisons according to described first distance light grade and obtained;
When described distance light class requirement is described second distance light grade, described first distance light detection zone and the second distance light detection zone have the 16 to the 20 summit respectively, described 3rd distance light detection zone has the 21 to the 27 summit, and the coordinate on described 16 to the 20 summit of described first distance light detection zone and the second distance light detection zone and described 21 to the 27 summit of described 3rd distance light detection zone is searched the corresponding distance light coordinate table of comparisons according to described second distance light grade and obtained;
When described distance light class requirement is described 3rd distance light grade, described first distance light detection zone has the 28 to the 32 summit, described second distance light detection zone has the the 30th the three to three ten nine summit, described 3rd distance light detection zone has the 40 to the 45 summit, described 28 to the 32 summit of described first distance light detection zone, the coordinate on the described 30th the three to three ten nine summit of described second distance light detection zone and described 40 to the 45 summit of described 3rd distance light detection zone is searched the corresponding distance light coordinate table of comparisons according to described 3rd distance light grade and is obtained,
When described distance light class requirement is described 4th distance light grade, described first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone have the 46 to the 52 summit respectively, and the coordinate on described 46 to the 52 summit of described first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone is searched the corresponding distance light coordinate table of comparisons according to described 4th distance light grade and obtained;
When described distance light class requirement is described 5th distance light grade, described first distance light detection zone has the 53 to the 57 summit, described second distance light detection zone and the 3rd distance light detection zone have the 58 to the 64 summit respectively, and the coordinate on described 53 to the 57 summit of described first distance light detection zone and described 58 to the 64 summit of described second distance light detection zone and the 3rd distance light detection zone is searched the corresponding distance light coordinate table of comparisons according to described 5th distance light grade and obtained.
5. the evaluating method of automotive headlamp as claimed in claim 1, it is characterized in that, described second dipped beam detection zone is around described first dipped beam detection zone, and described 3rd dipped beam detection zone is around described first dipped beam detection zone and the second dipped beam detection zone.
6. the evaluating method of automotive headlamp as claimed in claim 5, it is characterized in that, described second dipped beam detection zone is between described first dipped beam detection zone and described 3rd dipped beam detection zone.
7. the evaluating method of automotive headlamp as claimed in claim 2, it is characterized in that, described second distance light detection zone is around described first distance light detection zone, and described 3rd distance light detection zone is around described first distance light detection zone and the second distance light detection zone.
8. the evaluating method of automotive headlamp as claimed in claim 7, it is characterized in that, described second distance light detection zone is between described first distance light detection zone and described 3rd distance light detection zone.
9. the evaluating method of automotive headlamp as claimed in claim 1, it is characterized in that, in described coordinate system, the unit of longitudinal cell is 1m, and the unit of lateral cell lattice is 5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410803287.1A CN104849024B (en) | 2014-12-19 | 2014-12-19 | The evaluating method of automotive headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410803287.1A CN104849024B (en) | 2014-12-19 | 2014-12-19 | The evaluating method of automotive headlamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104849024A true CN104849024A (en) | 2015-08-19 |
| CN104849024B CN104849024B (en) | 2018-05-11 |
Family
ID=53848838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410803287.1A Active CN104849024B (en) | 2014-12-19 | 2014-12-19 | The evaluating method of automotive headlamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104849024B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179176A (en) * | 2017-06-29 | 2017-09-19 | 上海科世达-华阳汽车电器有限公司 | Automatic headlight tunnel is turned on light the method for testing of function |
| CN112539919A (en) * | 2020-11-03 | 2021-03-23 | 神龙汽车有限公司 | Night-vision illumination effect evaluation method for car lamp |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3494915B2 (en) * | 1999-03-24 | 2004-02-09 | 株式会社高岳製作所 | Reference position detection device for headlight optical axis adjustment |
| CN2903954Y (en) * | 2005-07-08 | 2007-05-23 | 程本瑞 | Tester for headlamp of motor vehicle |
| JP3939866B2 (en) * | 1998-11-05 | 2007-07-04 | 中央電子計測株式会社 | Headlight optical axis adjustment method |
| JP2012127930A (en) * | 2010-12-13 | 2012-07-05 | Watanabe Denki Kogyo Kk | Method for measuring vehicular headlight and device thereof |
| CN103353345A (en) * | 2013-07-13 | 2013-10-16 | 佛山分析仪有限公司 | Motor vehicle headlamp detector light intensity detection method |
| CN103592105A (en) * | 2012-08-18 | 2014-02-19 | 奥迪股份公司 | Method and device for evaluating a quality of a headlamp |
-
2014
- 2014-12-19 CN CN201410803287.1A patent/CN104849024B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3939866B2 (en) * | 1998-11-05 | 2007-07-04 | 中央電子計測株式会社 | Headlight optical axis adjustment method |
| JP3494915B2 (en) * | 1999-03-24 | 2004-02-09 | 株式会社高岳製作所 | Reference position detection device for headlight optical axis adjustment |
| CN2903954Y (en) * | 2005-07-08 | 2007-05-23 | 程本瑞 | Tester for headlamp of motor vehicle |
| JP2012127930A (en) * | 2010-12-13 | 2012-07-05 | Watanabe Denki Kogyo Kk | Method for measuring vehicular headlight and device thereof |
| CN103592105A (en) * | 2012-08-18 | 2014-02-19 | 奥迪股份公司 | Method and device for evaluating a quality of a headlamp |
| CN103353345A (en) * | 2013-07-13 | 2013-10-16 | 佛山分析仪有限公司 | Motor vehicle headlamp detector light intensity detection method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179176A (en) * | 2017-06-29 | 2017-09-19 | 上海科世达-华阳汽车电器有限公司 | Automatic headlight tunnel is turned on light the method for testing of function |
| CN112539919A (en) * | 2020-11-03 | 2021-03-23 | 神龙汽车有限公司 | Night-vision illumination effect evaluation method for car lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104849024B (en) | 2018-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103019933B (en) | Test case coverage automatic identifying method and device | |
| CN110035589B (en) | Stage lighting control method | |
| CN106183988B (en) | Non-power headlamp alarm | |
| CN104849024A (en) | Evaluation method for vehicle headlight | |
| CN102848968A (en) | Control device and control method for vehicular high-beam and low-beam lights | |
| CN106325863A (en) | Weather information reminding method and mobile terminal | |
| CN103152919A (en) | Tunnel lamp control system based on video monitoring | |
| CN104657661A (en) | Method and device for detecting malicious code in mobile terminal | |
| CN103913300A (en) | LED lighting product accelerated attenuation test method based on multilevel stepping stress | |
| CN104533441A (en) | Standard measuring and calculating method and system based on safety visibility for lighting of entrance section of tunnel at night | |
| CN112785850A (en) | Method and device for identifying vehicle lane change without lighting | |
| CN106446475B (en) | Method and device for extracting welding spot information of white body of vehicle | |
| CN103926500B (en) | The method realizing the detection of constant current driver circuit for LED performance | |
| CN103778153B (en) | A kind of method and system generating nominal data storehouse based on ASAP standard | |
| CN106768860A (en) | Car lighting lamp check method and device | |
| CN105973261B (en) | Label processing method and device | |
| CN114707601B (en) | Inspection information processing method and system based on new energy motorcycle and cloud platform | |
| EA200900391A1 (en) | METHOD OF AUTOMATIC DETERMINATION OF TYPE OF CAR ON MEASURING INSTALLATION | |
| CN109446613B (en) | Method and system for automatically checking bent routing | |
| CN110892794B (en) | System and method for displaying street lighting levels | |
| CN103853536A (en) | Method and device for realizing service tracking based on state transition diagram | |
| CN103697812B (en) | The light quantity intensity of critical size measurement apparatus adjusts system and method for adjustment | |
| CN102275540A (en) | Vehicle body controller and controlling method of daytime running lamp thereof | |
| CN101915388A (en) | Partition design method of vehicle LED dipped headlight | |
| CN104880466A (en) | Chip detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |