CN104849024B - The evaluating method of automotive headlamp - Google Patents
The evaluating method of automotive headlamp Download PDFInfo
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- CN104849024B CN104849024B CN201410803287.1A CN201410803287A CN104849024B CN 104849024 B CN104849024 B CN 104849024B CN 201410803287 A CN201410803287 A CN 201410803287A CN 104849024 B CN104849024 B CN 104849024B
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Abstract
The invention discloses a kind of evaluating method of automotive headlamp, including：The center of vehicle to be measured is obtained, and obtains the dipped beam class requirement of vehicle to be measured；Coordinate system is established as coordinate origin using the center of vehicle to be measured；The first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone in coordinate system are determined according to dipped beam class requirement；The dipped headlight of vehicle to be measured is opened, 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；Dipped beam brightness in the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone of detection judges whether the grade of dipped headlight meets dipped beam class requirement.This method ensure that the light type of distance-light, the width and length of distance-light ensure that, and evaluation, which requires, to be proposed to lamps and lanterns early period in design, when design performs, and avoids complaint of client's later stage to distance-light.
Description
Technical field
The present invention relates to technical field of vehicle detection, more particularly to a kind of evaluating method of automotive headlamp.
Background technology
In correlation technique, since national standard is only that the quantization for point is advised for the regulation of headlight for vehicle light light distribution
Fixed, for example, as shown in Fig. 1 (a) and Fig. 1 (b), Fig. 1 (a) is illumination requirement of the national standard for vehicle dipped headlight, it is provided
Dipped headlight matches somebody with somebody the scope of brightness value in indivedual points during light or region；Fig. 1 (b) is illumination of the national standard for vehicular high beam lamp
It is required that when matching somebody with somebody light which specify high beam in indivedual points or region brightness value scope, so, for automotive headlamp distance-light
Evaluation and test can only judge from the brightness value of quantization, and specify only according to national legislation come the brightness value that judges indivedual several
The numerical value of point.
However, since national standard only exists indivedual points for high beam and dipped headlight illumination requirement, so that vehicle
The distance light and dipped beam of headlight impinge upon that light type on road surface is poor, and width is inadequate, brightness is inadequate, and light is not remote enough, so as to give
Driver brings security risk in nighttime driving, causes client to be discontented with.
Therefore, how while requirement of the grade lamps and lanterns regulation for light distribution is met, exist to the light of automotive headlamp
It is urgently to be resolved hurrily that a problem of standard quantified is complained to avoid client is provided in light type and illumination.
The content of the invention
The purpose of the present invention is intended to solve at least some of the technical problems in related technologies.
For this reason, an object of the present invention is to provide a kind of evaluating method of automotive headlamp.This method is effectively protected
The light type of distance-light has been demonstrate,proved, ensure that the width and length of distance-light, so as to effectively ensure the driving illumination of driver；Separately
On the one hand, evaluation, which requires, to be proposed to lamps and lanterns early period in design, when design performs, and avoids client and the later stage distance-light is embraced
Resentment.
To achieve these goals, the evaluating method of the automotive headlamp of first aspect present invention embodiment, including：Obtain
The center of vehicle to be measured, and obtain the dipped beam class requirement of the vehicle to be measured；It is former by coordinate of the center of the vehicle to be measured
Point establishes coordinate system；Determine that the first dipped beam detection zone in the coordinate system, the second dipped beam are examined according to the dipped beam class requirement
Survey area and the 3rd dipped beam detection zone；The dipped headlight of the vehicle to be measured is opened, and detects the first dipped beam detection zone, respectively
Dipped beam brightness in two dipped beam detection zones and the 3rd dipped beam detection zone；According to the first dipped beam detection zone of detection, second near
Dipped beam brightness in light detection zone and the 3rd dipped beam detection zone judges whether the grade of the dipped headlight meets the dipped beam grade
It is required that.
The evaluating method of automotive headlamp according to embodiments of the present invention, on the basis of existing technology for the area of illumination
Domain is divided, and corresponding brightness value lower limit is defined to each region, on the one hand, is effectively guaranteed the light of distance-light
Type, ensure that the width and length of distance-light, so as to effectively ensure the driving illumination of driver；On the other hand, designing
Early period proposes that evaluation requires to lamps and lanterns, and when design performs, and avoids complaint of client's later stage to distance-light.
According to one embodiment of present invention, the evaluating method further includes：Obtain the distance light grade of the vehicle to be measured
It is required that；The first distance light detection zone, the second distance light detection zone and in the coordinate system are determined according to the distance light class requirement
Three distance light detection zones；The high beam of the vehicle to be measured is opened, and detects the first distance light detection zone, the inspection of the second distance light respectively
Survey the distance light brightness in area and the 3rd distance light detection zone；According to the first distance light detection zone, the second distance light detection zone of detection
Judge whether the grade of the high beam meets the distance light class requirement with the distance light brightness in the 3rd distance light detection zone.
According to one embodiment of present invention, the first dipped beam detection zone, the second dipped beam detection zone and the inspection of the 3rd dipped beam
Survey area has the first to the 5th vertex, the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone respectively
The coordinate on the described first to the 5th vertex the corresponding dipped beam coordinate table of comparisons searched according to the dipped beam class requirement obtain.
According to one embodiment of present invention, the distance light class requirement has the first to the 5th distance light grade, wherein, when
When the distance light class requirement is the first distance light grade, the first distance light detection zone has the 6th to the 9th vertex, institute
State the second distance light detection zone and the 3rd distance light detection zone has the tenth to the 15th vertex respectively, the first distance light detection zone
6th to the 9th vertex and the tenth to the 15th vertex of the second distance light detection zone and the 3rd distance light detection zone
Coordinate the corresponding distance light coordinate table of comparisons searched according to the first distance light grade obtain；When the distance light class requirement is institute
When stating the second distance light grade, the first distance light detection zone and the second distance light detection zone have the 16th to the 20th top respectively
Point, the 3rd distance light detection zone have the 21st to the 27th vertex, the first distance light detection zone and the second distance light
The the 16th to the 20th vertex of detection zone and the 21st to the 27th top of the 3rd distance light detection zone
The coordinate of point is searched the corresponding distance light coordinate table of comparisons according to the second distance light grade and is obtained；When the distance light class requirement is
During the 3rd distance light grade, the first distance light detection zone has the 28th to the 32nd vertex, second distance light
Detection zone has the 33rd to 39 vertex, and the 3rd distance light detection zone has the 40th to the 45th vertex, institute
State the first distance light detection zone the 28th to the 32nd vertex, the described 33rd of the second distance light detection zone the
To the coordinate on 39 vertex and the 40th to the 45th vertex of the 3rd distance light detection zone according to the described 3rd
Distance light grade is searched the corresponding distance light coordinate table of comparisons and is obtained；When the distance light class requirement is the 4th distance light grade,
The first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone have the 46th to the 52nd top respectively
Point, the first distance light detection zone, the described 46th to the 52nd of the second distance light detection zone and the 3rd distance light detection zone the
The coordinate on vertex is searched the corresponding distance light coordinate table of comparisons according to the 4th distance light grade and is obtained；When the distance light class requirement
For the 5th distance light grade when, the first distance light detection zone has the 53rd to the 57th vertex, and described second is remote
Light detection zone and the 3rd distance light detection zone have the 58th to the 64th vertex, the institute of the first distance light detection zone respectively
State the described 58th of the 53rd to the 57th vertex and the second distance light detection zone and the 3rd distance light detection zone to
The coordinate on the 64th vertex is searched the corresponding distance light coordinate table of comparisons according to the 5th distance light grade and is obtained.
According to one embodiment of present invention, the second dipped beam detection zone surrounds the first dipped beam detection zone, described
3rd dipped beam detection zone surrounds 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 located at the first dipped beam detection zone and institute
State between the 3rd dipped beam detection zone.
According to one embodiment of present invention, the second distance light detection zone surrounds the first distance light detection zone, described
3rd distance light detection zone surrounds 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 located at the first distance light detection zone and institute
State between the 3rd distance light detection zone.
According to one embodiment of present invention, the unit of longitudinal cell is 1m in the coordinate system, lateral cell lattice
Unit is 5m.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein,
Fig. 1 (a) is schematic diagram of the national standard for the illumination requirement of vehicle dipped headlight；
Fig. 1 (b) is schematic diagram of the national standard for the illumination requirement of vehicular high beam lamp；
Fig. 2 is the flow chart according to an embodiment of the invention for being directed to the evaluating method of dipped headlight in automotive headlamp；
Fig. 3 (a) is the first dipped beam detection zone, the second dipped beam detection zone in the first dipped beam grade according to embodiments of the present invention
With the schematic diagram of the 3rd dipped beam detection zone；
Fig. 3 (b) is the first dipped beam detection zone, the second dipped beam detection zone in the second dipped beam grade according to embodiments of the present invention
With the schematic diagram of the 3rd dipped beam detection zone；
Fig. 3 (c) is the first dipped beam detection zone, the second dipped beam detection zone in the 3rd dipped beam grade according to embodiments of the present invention
With the schematic diagram of the 3rd dipped beam detection zone；
Fig. 3 (d) is the first dipped beam detection zone, the second dipped beam detection zone in the 4th dipped beam grade according to embodiments of the present invention
With the schematic diagram of the 3rd dipped beam detection zone；
Fig. 3 (e) is the first dipped beam detection zone, the second dipped beam detection zone in the 5th dipped beam grade according to embodiments of the present invention
With the schematic diagram of the 3rd dipped beam detection zone；
Fig. 4 is the flow chart according to an embodiment of the invention for being directed to the evaluating method of high beam in automotive headlamp；
Fig. 5 (a) is the first distance light detection zone, the second distance light detection zone in the first distance light grade according to embodiments of the present invention
With the schematic diagram of the 3rd distance light detection zone；
Fig. 5 (b) is the first distance light detection zone, the second distance light detection zone in the second distance light grade according to embodiments of the present invention
With the schematic diagram of the 3rd distance light detection zone；
Fig. 5 (c) is the first distance light detection zone, the second distance light detection zone in the 3rd distance light grade according to embodiments of the present invention
With the schematic diagram of the 3rd distance light detection zone；
Fig. 5 (d) is the first distance light detection zone, the second distance light detection zone in the 4th distance light grade according to embodiments of the present invention
With the schematic diagram of the 3rd distance light detection zone；And
Fig. 5 (e) is the first distance light detection zone, the second distance light detection zone in the 5th distance light grade according to embodiments of the present invention
With the schematic diagram of the 3rd distance light detection zone.
Embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
At present, evaluation for automotive headlamp distance-light can only be judged from the brightness value of quantization, and according to country
Regulation specify only the numerical value of indivedual several points come the brightness value that judges, and the brightness of several points can not expire for driver
The needs of sufficient safe driving, and lamps and lanterns producer also simply refers to the standard of national legislation when design, this undoubtedly causes car
Cause complaint of the client for light after main engine plants sell.For this reason, the present invention proposes a kind of evaluation and test of automotive headlamp
Method, present invention address that while requirement of the lamps and lanterns regulation for light distribution, the light of headlight is above carried in light type and illumination
The standard of a quantization has been supplied, has avoided the complaint of client.Specifically, before the vehicle for below with reference to the accompanying drawings describing the embodiment of the present invention
The evaluating method of headlight.
It should be noted that since the headlight of vehicle includes dipped headlight and high beam, the irradiation of dipped headlight and high beam
Region and irradiation brightness are different, so the evaluating standard of dipped headlight and high beam has difference, will introduce dipped beam respectively below
The evaluating method of lamp and high beam.
Fig. 2 is the flow chart according to an embodiment of the invention for being directed to the evaluating method of dipped headlight in automotive headlamp.
As shown in Fig. 2, should be directed to the evaluating method of dipped headlight in automotive headlamp can include：
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 present invention is generally directed to the evaluation index of distance-light in automotive headlamp, i.e., by distance light and closely
Light on the ground according to width and irradiation distance be divided into A, B, C area (such as dipped headlight：First dipped beam detection zone, the second dipped beam
Detection zone and the 3rd dipped beam detection zone；High beam：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, the illuminance of ground of distance light and dipped beam is finally divided into 5 grades respectively, such as the
One to the 5th dipped beam grade, the first to the 5th distance light grade.
Specifically, ready vehicle drive to be measured can be entered area to be detected, and vehicle parking is good, with vehicle car to be measured
Center of the body forefront center as vehicle to be measured, and obtain the dipped beam class requirement of the vehicle to be measured.Wherein, the present invention's
In embodiment, dipped beam class requirement can have five dipped beam grades, respectively the first to the 5th dipped beam grade, each dipped beam grade
In there is respective class requirement, for example, each dipped beam grade has respective dipped beam detection zone and each dipped beam detection zone
Dipped beam brightness requirement etc..
S202, coordinate system is established using the center of vehicle to be measured as coordinate origin.
Wherein, in an embodiment of the present invention, the unit of longitudinal cell is 1m in coordinate system, the unit of lateral cell lattice
For 5m.For example, coordinate line can be drawn on the ground using automobile body forefront center to be measured as coordinate origin (0,0)：Ordinate
Per lattice 1m, forward direction draws 8m, and negative sense draws 8m；Abscissa draws 50m per lattice 5m, forward direction.
S203, the first dipped beam detection zone, the second dipped beam detection zone and in coordinate system are determined according to dipped beam class requirement
Three dipped beam detection zones.
Wherein, in an embodiment of the present invention, the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone
There is the first to the 5th vertex respectively, the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone first to
The coordinate on the 5th vertex is searched the corresponding dipped beam coordinate table of comparisons according to dipped beam class requirement and is obtained.Specifically, can be according to dipped beam
The corresponding coordinate value of dipped beam detection zone draws the first dipped beam detection zone, the detection of the second dipped beam in a coordinate system respectively in class requirement
Area and the 3rd dipped beam detection zone.That is, find the first dipped beam detection zone, the inspection of the second dipped beam respectively in dipped beam class requirement
The coordinate on the first to the 5th vertex in area and the 3rd dipped beam detection zone is surveyed, and respectively by five vertex of the regional found
Coordinate marks in a coordinate system, and five vertex in each region then are carried out line to obtain the inspection of each dipped beam in coordinate system
Survey area.
It should be noted that in one embodiment of the invention, the second dipped beam detection zone surrounds the first dipped beam detection zone,
3rd dipped beam detection zone surrounds the first dipped beam detection zone and the second dipped beam detection zone.Wherein, in an embodiment of the present invention, second
Dipped beam detection zone is between the first dipped beam detection zone and the 3rd dipped beam detection zone.
It will be exemplified below determining that the first dipped beam detection zone in coordinate system, the second dipped beam are examined according to dipped beam class requirement
Survey the specific implementation process of area and the 3rd dipped beam detection zone：
For example, it is assumed that dipped beam class requirement has the first to the 5th dipped beam grade, and Fig. 3 (a) is the first dipped beam grade
In the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone schematic diagram, Fig. 3 (b) is the second dipped beam grade
In the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone schematic diagram, Fig. 3 (c) is the 3rd dipped beam grade
In the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone schematic diagram, Fig. 3 (d) is the 4th dipped beam grade
In the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone schematic diagram, Fig. 3 (e) is the 5th dipped beam grade
In the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone schematic diagram, using dipped beam class requirement as the 5th
, i.e., can be according to the 5th when whether the grade of the dipped headlight of detection vehicle to be measured meets the 5th dipped beam grade exemplified by dipped beam grade
The first dipped beam detection zone, the second dipped beam detection zone and the corresponding coordinate value of the 3rd dipped beam detection zone are respectively in coordinate in dipped beam grade
The first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone are drawn in system.For example, the picture of the first dipped beam detection zone
Method：Assuming that five vertex of the first dipped beam detection zone are represented with A, B, C, D, E respectively, can be seen that by a-quadrant in such as Fig. 3 (e)
The coordinate of every is respectively A (10,2.5), B (27,1.5), C (40,0), D (40, -1.5), E (10, -4), according to every point coordinates
These vertex are drawn in the coordinate system of value on the ground, are then connected with straight line, form a pentagon, are the first dipped beam
Detection zone；The technique of painting of second dipped beam detection zone：Assuming that letter F, G, H, I, J table is used on five vertex of the second dipped beam detection zone respectively
Show, the coordinate that can be seen that by B area in Fig. 3 (e) at every is respectively F (10,3.5), G (40,2.5), H (50, -1.5), I
(40, -4), J (10, -4), draws these vertex according in the coordinate system of every point coordinates value on the ground, is then connected with straight line
Connect, form a pentagon, be the second dipped beam detection zone；The technique of painting of 3rd dipped beam detection zone：Assuming that the 3rd dipped beam detection zone
Five vertex represent that the coordinate that can be seen that by C regions in Fig. 3 (e) at every is respectively K with letter K, L, M, N, P respectively
(10,4.3), L (45,2.5), M (62, -1.5), N (50, -4.3), P (10, -4.3), according to every point coordinates value on the ground
These vertex are drawn in coordinate system, are then connected with straight line, form a pentagon, are the 3rd dipped beam detection zone.
S204, opens the dipped headlight of vehicle to be measured, and detects the first dipped beam detection zone, the second dipped beam detection zone and respectively
Dipped beam brightness in three dipped beam detection zones.
Specifically, the dipped headlight of vehicle to be measured is opened, and measures by illumination photometer the first dipped beam detection zone, second near respectively
The brightness value of light detection zone and the point in the 3rd dipped beam detection zone (i.e. dipped beam brightness).
S205, according to the dipped beam in the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone of detection
Brightness judges whether the grade of dipped headlight meets dipped beam class requirement.
Specifically, when the dipped beam in the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone of detection
Brightness has been satisfied by the dipped beam brightness regulation in dipped beam class requirement, then can determine whether that the grade of this time detection dipped headlight meets dipped beam
Class requirement.
For example, it is assumed that this time whether the first dipped beam grade in the dipped headlight of test vehicle meets in dipped beam class requirement
Dipped beam brightness regulation in first dipped beam grade, can first obtain the first dipped beam grade, and get ground from the first dipped beam grade
The first dipped beam detection zone, the second dipped beam detection zone on face in coordinate system and the coordinate on each vertex in the 3rd dipped beam detection zone
Value, corresponding dipped beam detection zone is determined according to each apex coordinate value, can measure the inspection of the first dipped beam respectively by illumination photometer afterwards
The brightness value of area, the second dipped beam detection zone and the point in the 3rd dipped beam detection zone is surveyed, and judges this time to test according to testing result
Whether the first dipped beam grade of dipped headlight meets the first dipped beam grade in dipped beam class requirement.
It should be appreciated that the evaluation and test principle of high beam and dipped headlight is identical, simply evaluating standard is different, i.e., remote in detection
During the distance light detection zone of light lamp, its corresponding coordinate value and distance light detection zone coordinate is according to the corresponding ginseng in distance light class requirement
Number.The evaluating method for high beam in automotive headlamp is explained below.
Fig. 4 is the flow chart according to an embodiment of the invention for being directed to the evaluating method of high beam in automotive headlamp.
As shown in figure 4, should be directed to the evaluating method of high beam in automotive headlamp can include：
S401, obtains the center of vehicle to be measured, and obtains the distance light class requirement of vehicle to be measured.
S402, coordinate system is established using the center of vehicle to be measured as coordinate origin.
S403, the first distance light detection zone, the second distance light detection zone and in coordinate system are determined according to distance light class requirement
Three distance light detection zones.
Wherein, in an embodiment of the present invention, distance light class requirement has the first to the 5th distance light grade, wherein, when remote
When light class requirement is the first distance light grade, the first distance light detection zone has the 6th to the 9th vertex, the second distance light detection zone and
3rd distance light detection zone has the tenth to the 15th vertex, the 6th to the 9th vertex and second of the first distance light detection zone respectively
The coordinate on the tenth to the 15th vertex of distance light detection zone and the 3rd distance light detection zone is searched corresponding according to the first distance light grade
The distance light coordinate table of comparisons obtains；
When distance light class requirement is the second distance light grade, the first distance light detection zone and the second distance light detection zone have respectively
16th to the 20th vertex, the 3rd distance light detection zone have the 21st to the 27th vertex, the first distance light detection zone and
16th to the 20th vertex of the second distance light detection zone and the 21st to the 27th vertex of the 3rd distance light detection zone
Coordinate is searched the corresponding distance light coordinate table of comparisons according to the second distance light grade and is obtained；
When distance light class requirement is the 3rd distance light grade, the first distance light detection zone has the 28th to the 32nd top
Point, the second distance light detection zone have the 33rd to 39 vertex, and the 3rd distance light detection zone has the 40th to the 45th
Vertex, the 28th to the 32nd vertex of the first distance light detection zone, the 33rd to 39 of the second distance light detection zone the
The coordinate on vertex and the 40th to the 45th vertex of the 3rd distance light detection zone is searched corresponding remote according to the 3rd distance light grade
The light coordinate table of comparisons obtains；
When distance light class requirement is the 4th distance light grade, the first distance light detection zone, the second distance light detection zone and the 3rd are remote
Light detection zone has the 46th to the 52nd vertex respectively, and the first distance light detection zone, the second distance light detection zone and the 3rd are remote
The coordinate on the 46th to the 52nd vertex of light detection zone is searched corresponding distance light coordinate pair according to the 4th distance light grade and is shone
Table obtains；
When distance light class requirement is the 5th distance light grade, the first distance light detection zone has the 53rd to the 57th top
Point, the second distance light detection zone and the 3rd distance light detection zone have the 58th to the 64th vertex, the detection of the first distance light respectively
53rd to the 57th vertex in area and the 58th to the 60th of the second distance light detection zone and the 3rd distance light detection zone the
The coordinate on four vertex is searched the corresponding distance light coordinate table of comparisons according to the 5th distance light grade and is obtained.
Specifically, can be drawn in a coordinate system respectively according to the corresponding coordinate value of distance light detection zone in different distance light grades
One distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone.That is, found respectively in different distance light grades
The apex coordinate of corresponding first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone, and will find respectively
The apex coordinate of regional marks in a coordinate system, and each vertex in each region then is carried out line to obtain in coordinate system
Each distance light detection zone.
It should be noted that in one embodiment of the invention, the second distance light detection zone surrounds the first distance light detection zone,
3rd distance light detection zone surrounds the first distance light detection zone and the second distance light detection zone.Wherein, in an embodiment of the present invention, second
Distance light detection zone is between the first distance light detection zone and the 3rd distance light detection zone.
It will be exemplified below determining that the first distance light detection zone in coordinate system, the second distance light are examined according to distance light class requirement
Survey the specific implementation process of area and the 3rd distance light detection zone：
For example, it is assumed that distance light class requirement has the first to the 5th distance light grade, and Fig. 5 (a) is the first distance light grade
In the first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone schematic diagram, Fig. 5 (b) is the second distance light grade
In the first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone schematic diagram, Fig. 5 (c) is the 3rd distance light grade
In the first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone schematic diagram, Fig. 5 (d) is the 4th distance light grade
In the first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone schematic diagram, Fig. 5 (e) is the 5th distance light grade
In the first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone schematic diagram, using distance light class requirement as the 5th
, i.e., can be according to the 5th when whether the grade of the high beam of detection vehicle to be measured meets the 5th distance light grade exemplified by distance light grade
The first distance light detection zone, the second distance light detection zone and the corresponding coordinate value of the 3rd distance light detection zone are respectively in coordinate in distance light grade
The first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone are drawn in system.For example, due to the 5th distance light grade
To evaluate and test benchmark, the technique of painting of the first distance light detection zone in the 5th distance light grade：Assuming that 5 vertex difference of the first distance light detection zone
Represented with a, b, c, d, e, the coordinate that can be seen that by a-quadrant in Fig. 5 (e) at every is respectively a (10,4), b (90,2.5), c
(100,0), d (90, -2.5), e (10, -4), draw these vertex, so according in the coordinate system of every point coordinates value on the ground
Connected afterwards with straight line, form a pentagon, be the first distance light detection zone；The technique of painting of second distance light detection zone：Assuming that second
7 vertex of distance light detection zone are represented with letter f, g, h, i, j, k, l respectively, can be seen that at every by B area in Fig. 5 (e)
Coordinate be respectively f (10,4.6), g (120,3.5), h (145,2.5), i (152.5,0), j (145, -2.5), k (120, -3.5),
L (10, -4), draws these vertex according in the coordinate system of every point coordinates value on the ground, is then connected with straight line, composition one
A figure, is the second distance light detection zone；The technique of painting of 3rd distance light detection zone：Assuming that 7 vertex of the 3rd distance light detection zone point
Do not represented with letter m, n, p, q, r, s, t, the coordinate that can be seen that by C regions in Fig. 5 (e) at every is respectively m (10,4.6), n
(150,6), p (210,2.5), q (220,0), r (210, -2.5), s (150, -6), t (10, -4.6), exist according to every point coordinates value
These vertex are drawn in coordinate system on ground, are then connected with straight line, form a figure, are the detection of the 3rd distance light
Area.
S404, opens the high beam of vehicle to be measured, and detects the first distance light detection zone, the second distance light detection zone and respectively
Distance light brightness in three distance light detection zones.
S405, according to the distance light in the first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone of detection
Brightness judges whether the grade of high beam meets distance light class requirement.
The evaluating method of automotive headlamp according to embodiments of the present invention, on the basis of existing technology for the area of illumination
Domain is divided, and corresponding brightness value lower limit is defined to each region, on the one hand, is effectively guaranteed the light of distance-light
Type, ensure that the width and length of distance-light, so as to effectively ensure the driving illumination of driver；On the other hand, designing
Early period proposes that evaluation requires to lamps and lanterns, and when design performs, and avoids complaint of client's later stage to distance-light.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
Combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this area
Art personnel can be tied the different embodiments or example described in this specification and different embodiments or exemplary feature
Close and combine.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two, three
It is a etc., unless otherwise specifically defined.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used for realization specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic at the same time in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring
Connecting portion (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or if necessary with it
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, have suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries
Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..Although have been shown and retouch above
The embodiment of the present invention is stated, it is to be understood that above-described embodiment is exemplary, it is impossible to be interpreted as the limit to the present invention
System, those of ordinary skill in the art can be changed above-described embodiment, change, replace and become within the scope of the invention
Type.
Claims (8)
1. a kind of evaluating method of automotive headlamp, it is characterised in that comprise the following steps：
The center of vehicle to be measured is obtained, and obtains the dipped beam class requirement of the vehicle to be measured；
Coordinate system is established by coordinate origin of the center of the vehicle to be measured, the abscissa of the coordinate system divides along headstock direction
Cloth, the ordinate of the coordinate system is along directional spreding of having a lot of social connections；
The first dipped beam detection zone, the second dipped beam detection zone and the 3rd in the coordinate system are determined according to the dipped beam class requirement
Dipped beam detection zone, wherein, the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone have first respectively
To the 5th vertex, the first dipped beam detection zone, described the first to the 5th of the second dipped beam detection zone and the 3rd dipped beam detection zone
The coordinate on vertex is searched the corresponding dipped beam coordinate table of comparisons according to the dipped beam class requirement and is obtained, and is examined according to first dipped beam
The coordinate on the described first to the 5th vertex of area, the second dipped beam detection zone and the 3rd dipped beam detection zone is surveyed respectively in the coordinate system
In draw the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone；
The dipped headlight of the vehicle to be measured is opened, and detects the first dipped beam detection zone, the second dipped beam detection zone and respectively
Dipped beam brightness in three dipped beam detection zones；
Dipped beam brightness in the first dipped beam detection zone, the second dipped beam detection zone and the 3rd dipped beam detection zone of detection is sentenced
Whether the grade of the disconnected dipped headlight meets the dipped beam class requirement.
2. the evaluating method of automotive headlamp as claimed in claim 1, it is characterised in that further include：
Obtain the distance light class requirement of the vehicle to be measured；
The first distance light detection zone, the second distance light detection zone and the 3rd in the coordinate system are determined according to the distance light class requirement
Distance light detection zone；
The high beam of the vehicle to be measured is opened, and detects the first distance light detection zone, the second distance light detection zone and respectively
Distance light brightness in three distance light detection zones；
Distance light brightness in the first distance light detection zone, the second distance light detection zone and the 3rd distance light detection zone of detection is sentenced
Whether the grade of the disconnected high beam meets the distance light class requirement.
3. the evaluating method of automotive headlamp as claimed in claim 2, it is characterised in that the distance light class requirement has the
One to the 5th distance light grade, wherein,
When the distance light class requirement is the first distance light grade, the first distance light detection zone has the 6th to the 9th top
Point, the second distance light detection zone and the 3rd distance light detection zone have the tenth to the 15th vertex, the first distance light inspection respectively
6th to the 9th vertex in survey area and the described tenth to the tenth of the second distance light detection zone and the 3rd distance light detection zone the
The coordinate on five vertex is searched the corresponding distance light coordinate table of comparisons according to the first distance light grade and is obtained；
When the distance light class requirement is the second distance light grade, the first distance light detection zone and the second distance light detection zone
There is the 16th to the 20th vertex respectively, the 3rd distance light detection zone has the 21st to the 27th vertex, described
The the 16th to the 20th vertex and the 3rd distance light detection zone of first distance light detection zone and the second distance light detection zone
The coordinate on the 21st to the 27th vertex searches the corresponding distance light coordinate table of comparisons according to the second distance light grade
Obtain；
When the distance light class requirement is the 3rd distance light grade, the first distance light detection zone has the 28th to the
32 vertex, the second distance light detection zone have the 33rd to 39 vertex, and the 3rd distance light detection zone has
40th to the 45th vertex, the 28th to the 32nd vertex of the first distance light detection zone, described second
The 33rd to 39 vertex of distance light detection zone and the described 40th to the 40th of the 3rd distance light detection zone the
The coordinate on five vertex is searched the corresponding distance light coordinate table of comparisons according to the 3rd distance light grade and is obtained；
When the distance light class requirement is the 4th distance light grade, the first distance light detection zone, the second distance light detection zone
There is the 46th to the 52nd vertex, the first distance light detection zone, the inspection of the second distance light respectively with the 3rd distance light detection zone
The coordinate for surveying area and the 46th to the 52nd vertex of the 3rd distance light detection zone is looked into according to the 4th distance light grade
The corresponding distance light coordinate table of comparisons is looked for obtain；
When the distance light class requirement is the 5th distance light grade, the first distance light detection zone has the 53rd to the
57 vertex, the second distance light detection zone and the 3rd distance light detection zone have the 58th to the 64th vertex respectively,
The the 53rd to the 57th vertex of the first distance light detection zone and the second distance light detection zone and the 3rd distance light
The coordinate on the 58th to the 64th vertex of detection zone is searched corresponding distance light according to the 5th distance light grade and is sat
The table of comparisons is marked to obtain.
4. the evaluating method of automotive headlamp as claimed in claim 1, it is characterised in that the second dipped beam detection zone surrounds
The first dipped beam detection zone, the 3rd dipped beam detection zone surround the first dipped beam detection zone and the second dipped beam detection zone.
5. the evaluating method of automotive headlamp as claimed in claim 4, it is characterised in that the second dipped beam detection zone is located at
Between the first dipped beam detection zone and the 3rd dipped beam detection zone.
6. the evaluating method of automotive headlamp as claimed in claim 2, it is characterised in that the second distance light detection zone surrounds
The first distance light detection zone, the 3rd distance light detection zone surround the first distance light detection zone and the second distance light detection zone.
7. the evaluating method of automotive headlamp as claimed in claim 6, it is characterised in that the second distance light detection zone is located at
Between the first distance light detection zone and the 3rd distance light detection zone.
8. the evaluating method of automotive headlamp as claimed in claim 1, it is characterised in that in the coordinate system on ordinate
The unit of cell is 1m, and the unit of the cell on abscissa is 5m.
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| 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 |
| CN112539919B (en) * | 2020-11-03 | 2023-03-21 | 神龙汽车有限公司 | Night-vision illumination effect evaluation method for car lamp |
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| 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 |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| DE102012016441B4 (en) * | 2012-08-18 | 2017-10-12 | Audi Ag | Method and device for evaluating a quality of a headlight |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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