CN109795400A - A kind of headlight for vehicle lamp intelligent stepless regulation device and regulation method - Google Patents
A kind of headlight for vehicle lamp intelligent stepless regulation device and regulation method Download PDFInfo
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Abstract
The present disclosure proposes a kind of headlight for vehicle lamp intelligent stepless regulation device and regulation methods, stepless regulation and control device includes environmental detection sensor, infrared thermoviewer, test the speed range unit and master controller, the environmental detection sensor, infrared thermoviewer, the range unit that tests the speed is connect with master controller respectively, the master controller is connect with the headlamp on vehicle, the main controller time required when becoming dipped headlight according to calculated high beam, set the light intensity of the variation relation regulation high beam of corresponding light intensity and angle, pass through the irradiating angle of the transformation regulation high beam of light intensity, realize the intelligent stepless regulation of headlight for vehicle lamp, the misoperation as driver can be reduced and caused by accident.
Description
Technical field
This disclosure relates to vehicle correlative technology field, in particular to a kind of headlight for vehicle lamp intelligent stepless regulates and controls
Device and regulation method.
Background technique
Only there is provided background technical informations relevant to the disclosure for the statement of this part, it is not necessary to so constitute first skill
Art.
With the development of economy and social progress, motor vehicle becomes the daily tool ridden instead of walk of people, and annual traffic accident
Number also increases in the increase with vehicles number, wherein having a big chunk traffic accident accident again is the use due to far and near lamp
It is improper and caused by.During night running, when especially two vehicle meeting, if driver does not in time switch high beam
It for dipped headlight, or directly will lead to the of short duration blinding of driver of its opposite vehicle without switching, have a car accident to increase
A possibility that.And this phenomenon be there is also and meet and go with motor vehicle in non-motor vehicle when not being only present in vehicles meeting
When people and motor vehicle meet.Because of the improper use to far and near lamp of driver, the driver for leading to opposite non-motor vehicle and row
The of short duration blinding of people, to increase the probability of traffic accident generation.
And with the development of car networking technology and industry, unmanned technology has become the trend of industry development.Whole
Under a big industry development background, far and near lamp auto-control must solve the problems, such as during also becoming automotive technology development.
Summary of the invention
The disclosure to solve the above-mentioned problems, proposes a kind of headlight for vehicle lamp intelligent stepless regulation device and regulation side
Method, required time when becoming dipped headlight according to calculated high beam set the variation relation and angle of corresponding light intensity
Variation relation, by the irradiating angle of the transformation regulation high beam of light intensity, it is remote to realize vehicle to regulate and control the light intensity of high beam
The intelligent stepless of low beam regulates and controls, can reduce the misoperation as driver and caused by accident.
To achieve the goals above, the disclosure adopts the following technical scheme that
One or more embodiments provide a kind of headlight for vehicle lamp intelligent stepless regulation method, include the following steps:
The current environment data for acquiring current vehicle traveling control according to environmental data and open high beam or dipped headlight, such as
Fruit opens high beam and performs the next step；
Judge whether the front of current vehicle there are other vehicles or pedestrians, if not provided, high-beam light shining；Otherwise it executes next
Step；
Judge whether the speed of current vehicle is less than the regulation speed of vehicle switch-on dim light, if so, it is switched to dipped headlight,
Otherwise it performs the next step；
Acquire current vehicle and front vehicles or pedestrian's relative distance and travel speed, if relative distance be greater than setting away from
From performing the next step；Otherwise, it is switched to dipped headlight；
According to the relative distance and travel speed of acquisition, calculating current vehicle, which is travelled to front vehicles or pedestrian, apart to be set
The time interval Δ t of set a distance；
The variation function and high beam angle and remote of high beam light intensity and time are established according to the time interval Δ t of acquisition
The strong variation function of light light, light intensity and angle to high beam carry out stepless regulated according to variation function.
Further, the variation function of the variation function and high beam angle and high beam light intensity of high beam light intensity and time
It is all linear function.
Further, the variation function of high beam angle and high beam light intensity are as follows:
Wherein,For the irradiating angle of high beam,For the lighting angle when vehicle head lamp is high beam,Vehicle
Lighting angle when headlamp is dipped headlight, I are high beam light intensity, IFarFor single light when vehicle head lamp is high beam
According to intensity, ICloselySingle lamp intensity of illumination when vehicle head lamp is dipped headlight.
Further, the variation function of high beam light intensity and time are as follows:
I=σ1*t+IClosely
Wherein, I is high beam light intensity, and t is the time,IFarFor single light when vehicle head lamp is high beam
According to intensity, ICloselyVehicle head lamp be dipped headlight when single lamp intensity of illumination, Δ t be current vehicle travel to front vehicles or row
Time interval of the people at a distance of set distance.
Further, the environmental data includes weather visibility and extraneous intensity of illumination, is opened according to environmental data control
The method for opening high beam or dipped headlight specifically:
When weather visibility is less than 50 meters, or extraneous intensity of illumination is less than 0.3cd and is not less than 0.2cd, opens dipped beam
Lamp；
When weather visibility is not less than 50 meters, and extraneous intensity of illumination is not less than 0.3cd, closes headlamp；
When extraneous intensity of illumination is lower than 0.2cd, unlatching headlamp.
Further, according to the relative distance of acquisition and travel speed, calculate current vehicle travel to front vehicles or
Method of the pedestrian at a distance of the time interval Δ t of set distance specifically:
The motion state of current vehicle and front vehicles is determined according to the collected data；
According to determining motion state calculate current vehicle travel to front vehicles or pedestrian at a distance of set distance when
Between interval of delta t.
A kind of headlight for vehicle lamp intelligent stepless regulation device, including environmental detection sensor, infrared thermoviewer, ranging of testing the speed
Device and master controller, the environmental detection sensor, infrared thermoviewer, the range unit that tests the speed are connect with master controller respectively,
The master controller is connect with the headlamp on vehicle, and the master controller executes program and realizes a kind of above-mentioned headlight for vehicle lamp
Intelligent stepless regulates and controls the step of method.
Further, the environmental detection sensor includes visibility detector and illumination instrument, the visibility detector
It is connect respectively with master controller with illumination instrument.
Further, the range unit that tests the speed includes laser radar and millimetre-wave radar, the laser radar and millimeter
Wave radar is connect with master controller respectively.
A kind of vehicle, including a kind of above-mentioned headlight for vehicle lamp intelligent stepless regulation device.
Compared with prior art, the disclosure has the beneficial effect that
(1) the present disclosure proposes a kind of headlight for vehicle lamp intelligent stepless regulation device and regulation methods, according to calculated
High beam becomes the time required when dipped headlight, sets the light intensity of the variation relation regulation high beam of corresponding light intensity, sets phase
The variation relation of the angle and light intensity answered realizes headlight for vehicle lamp by the irradiating angle of the transformation regulation high beam of light intensity
Intelligent stepless regulation, can reduce the misoperation as driver and caused by accident.
(2) the application is further regulated and controled the intelligent stepless regulation of headlight for vehicle lamp using linear function, is regulated and controled
Method is simple and easy, can be of less demanding to the data processing of device, can promote on a large scale.
(3) stepless regulation and control device of the disclosure using laser radar and millimetre-wave radar combine acquisition vehicle relative velocity and
Distance carries out the work of regulation laser radar and millimetre-wave radar according to actual weather condition, and acquisition data are accurate, not by day
The restriction of gas situation and the restriction of equipment itself improve the stability of device work.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the restriction to the application for explaining the application.
Fig. 1 is the block diagram according to the device of one or more embodiments；
Fig. 2 is the method flow diagram of embodiment of the disclosure；
Fig. 3 be embodiment of the disclosure high beam be two when distance lamp light intensity and angle between relational graph；
Fig. 4 be embodiment of the disclosure high beam be two when distance lamp light intensity and angle between relational graph；
Fig. 5 is the schematic diagram of laser radar measurement relative distance and relative velocity；
Fig. 6 is the present embodiment vehicle driving schematic diagram；
Specific embodiment:
The disclosure is described further with embodiment with reference to the accompanying drawing.
It is noted that described further below be all exemplary, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.It should be noted that not conflicting
In the case where, the features in the embodiments and the embodiments of the present application can be combined with each other.Below in conjunction with attached drawing to embodiment
It is described in detail.
Motor vehicle is provided in night running according to national relevant laws, is opening street lamp or other illuminations preferably
Road up train should not open high beam.The vehicle for opening high beam should can switch to dipped headlight before 150 meters of Chinese herbaceous peony, with
Just the direction and position of both sides driver's energy accurate judgement vehicle, so that it is guaranteed that both sides can smooth safe driving.Meanwhile have mist,
In the case of the low visibilities such as rain, snow, sand and dust, hail when driving, dipped headlight need to be used.When motor vehicle speed lower than 30 kilometers/
Hour, motor vehicle need to use dipped headlight, and when the speed of motor vehicle is higher than 30 kilometers/hour, motor vehicle need to use high beam.
In the technical solution disclosed in one or more embodiments, as shown in Figure 1, a kind of headlight for vehicle lamp intelligence nothing
Grade regulation device, including environmental detection sensor, infrared thermoviewer, test the speed range unit and master controller, the environment measuring
Sensor, infrared thermoviewer, the range unit that tests the speed are connect with master controller respectively.Headlamp on the master controller and vehicle
Connect the stepless regulating of the far and near lamp for realizing headlamp.
Environmental detection sensor is used to measure the weather of the there and then of the local environment of current vehicle traveling, according to sensing
The weather data of device measurement, may include weather visibility detector and illumination instrument.The visibility detector and illumination instrument point
It is not connect with master controller.
Weather visibility detector test judges the actual air visibility of weather, when air low visibility is in 50 meters,
Directly determining light used in laboratory vehicle is dipped headlight, when air visibility is more than or equal to 50 meters, then judges intensity of illumination root
Headlamp is determined whether to out according to intensity of illumination.
Illumination instrument is the instrument for measuring extraneous light intensity, and model can be illumination photometer DT-1300, and sunny moonlit night light intensity is
0.2cd, the light intensity under night are 0.001cd.And the light intensity of dipped headlight list only is 0.5cd.When extraneous light intensity is in 0.2cd-0.3cd
When, dipped headlight is used, and when extraneous light intensity is lower than 0.2cd, open the tune that high beam carries out far and near lamp to current vehicle
Control.
Whether the front that infrared thermoviewer is used to detect current vehicle has motor vehicle, non-motor vehicle or pedestrian.Before vehicle
Side includes this lane, adjacent lane and roadside, if monitor front without motor vehicle, non-motor vehicle or pedestrian,
The high beam of motor vehicle is always on, if detect that there are motor vehicle, non-motor vehicle or pedestrian in the opposite of motor vehicle, needs root
High beam is switched to dipped headlight at a distance from the vehicle in front or pedestrian according to current vehicle.Before avoiding high beam from causing
The vehicle or pedestrian of side do not see road conditions and accident occur.
Laser radar and millimetre-wave radar, the laser radar and milli can be arranged in the range unit that tests the speed of the disclosure simultaneously
Metre wave radar is connect with master controller respectively, measures to read simultaneously by laser radar and millimetre-wave radar corresponding
Distance, speed and acceleration information, realize the measurement under different weather and the detection of periphery barrier.
In vehicle travel process when carrying out car light switching, conventional way is to carry out headlamp by the range estimation of driver
Dipped headlight and high beam switching, position when switching be it is inaccurate, be easy to cause accident.
The intelligent stepless that the present disclosure proposes a kind of for regulating and controlling headlight for vehicle lamp regulates and controls method, as shown in Fig. 2, including such as
Lower step:
The current environment data of step 1, acquisition current vehicle traveling, control according to environmental data and open high beam or dipped beam
Lamp performs the next step if opening high beam；
Step 2 judges whether the front of current vehicle has other vehicles or pedestrians, if not provided, high-beam light shining；Otherwise it holds
Row is in next step；
Step 3 judges whether the speed of current vehicle is less than the regulation speed of vehicle switch-on dim light, if so, being switched to
Otherwise dipped headlight performs the next step；
Providing that speed is set according to relevant traffic regulation, prevailing traffic method is lower than 30 kilometers/hour when the speed of motor vehicle,
Motor vehicle need to use dipped headlight, and when the speed of motor vehicle is higher than 30 kilometers/hour, motor vehicle need to use high beam, can set
Regulation speed is about 30 kilometers/hour a certain range of numerical value, or is 30 kilometers/hour.
Step 4, acquisition current vehicle and front vehicles or pedestrian's relative distance and travel speed, if relative distance is greater than
Set distance performs the next step；Otherwise, it is switched to dipped headlight；
Step 5, relative distance and travel speed according to acquisition, calculate current vehicle travel to front vehicles or pedestrian
At a distance of the time interval Δ t of set distance；
Set distance in step 4 and step 5 is set according to relevant regulations, and the vehicle for opening high beam should be in meeting Chinese herbaceous peony
Dipped headlight is switched to before 150 meters, set distance can be set as to 150 meters, or be set as the numerical value less than 150 meters.When
Relevant regulations change setting value is changed according to relevant regulations.The present embodiment is illustrated for being set as 150 meters.
Step 6, variation function and the high beam angle that high beam light intensity and time are established according to the time interval Δ t of acquisition
The variation function of degree and high beam light intensity, light intensity and angle to high beam carry out stepless regulated according to variation function.
It when having detected environmental data include weather visibility W and extraneous intensity of illumination H in step 1, according to environmental data control
System opens high beam or the method for dipped headlight is specifically as follows:
When weather visibility is less than 50 meters, or extraneous intensity of illumination is less than 0.3cd and is not less than 0.2cd, opens dipped beam
Lamp；
When weather visibility is not less than 50 meters, and extraneous intensity of illumination is not less than 0.3cd, closes headlamp；
When extraneous intensity of illumination is lower than 0.2cd, unlatching high beam.
That is: as 50 meters of W < or 0.2cd≤H < 0.3cd, dipped headlight is opened；
When W >=50 meter, and H >=0.3cd, close headlamp；
As H < 0.2cd, high beam is opened.
Be determined whether the enforcement environment of current vehicle needs to open headlamp by step 1, when open headlamp
Starting infrared radiation detection apparatus and the range unit that tests the speed, the traveling feelings for whether having pedestrian or vehicle and detection vehicle for detecting front
Condition, can either the energy saving processing speed that can be improved controller again.
If monitor that opposite does not have motor vehicle, non-motor vehicle or pedestrian, the high beam of motor vehicle is always on,
If, need to be according to laser radar and millimetre-wave radar but when detecting that there are motor vehicle, non-motor vehicle or pedestrian in the opposite of motor vehicle
Relative velocity and phase of the use condition measurement current vehicle at a distance from motor vehicle, non-motor vehicle or pedestrian in front of it
It adjusts the distance.The required time when 150 meters of its distance is determined according to the master data of measurement.
Laser radar descends performance poor using extreme weathers such as Shi Yu, snow, mists, and it is detected when millimetre-wave radar use
The direct restriction that distance is lost by frequency range, and the barrier on periphery can not be modeled accurately.It therefore can be according to sharp
The limitation condition of optical radar and millimetre-wave radar is regulated and controled.Specifically millimeter wave can be being used under the extreme weathers such as sleet mist
Radar uses laser radar in other cases.Weather condition is determined according to the data of weather visibility detector test, is set
The threshold value of weather visibility, weather visibility be less than setting threshold value when using millimetre-wave radar detection relative velocity and away from
From preferably being detected using laser radar in weather visibility, also can control laser radar and millimetre-wave radar simultaneously
Detection data.
Laser radar can use phase ranging method, also referred to as beam modulation telemetry, and laser radar ranging phase method is benefit
It is realized with the range information that the modulation light of transmitting and the phase difference for receiving light intensity between light being reflected include by ranging
From measurement.The delay of echo produces the delay of phase, measures phase difference and has just obtained target range.
The power of laser radar echo signal are as follows:
PrFor echo signal power, PtFor laser radar transmission power, K is the distribution function for emitting light beam, Ta1Ta2Respectively
It is atmospheric transmittance of the laser radar emission system to target and target to reception system, ηtηrIt is emission system and reception respectively
The transmitance of system, θtFor the angle of divergence for emitting laser, R1R2Emission system respectively to target and target to reception system away from
From Γ is the radar cross section of target, DrFor receiving aperture.
Assume to be D at a distance from target at transmitting as shown in Figure 5, laser speed c, round-trip interval time is t, then
Have:
Assuming that f is modulating frequency, N is the number of cycles of light wave two-way process, and Δ φ is total phase difference.Then interval time
T also may indicate that are as follows:
So:
DefinitionFor measurement ruler or scale,For remaining ruler.
Then: D=L (N+ Δ N).
When light modulation frequency f determines that then L is known, so only demand goes out N and Δ N, so that it may learn target range D.Δ
N can be measured by laser radar, but cannot measure N value, thus above equation there are Multiple solution that is, ranging exist multiplicity
Property.Assuming that target range can be known in advance within a scale L in we, such as N=0, distance measurement result will be unique at this time:Therefore existIn distance, distance measurement value is unique.Such as light modulation frequency f=150kHz, then L=1000m, when
When tested distance is less than 1000m, distance measurement value is unique.The speed and acceleration of opposite vehicle can be calculated by repeatedly measuring
Degree.
It is identical as laser radar measuring principle that millimetre-wave radar surveys velocity principle.
According to the relative distance and travel speed of acquisition, calculate current vehicle travel to front vehicles or pedestrian apart
The method of 150 meters of time interval Δ t is specifically as follows: determining the movement of current vehicle and front vehicles according to the collected data
State；According to determining motion state calculate current vehicle travel to front vehicles or pedestrian at a distance of 150 meters of time interval
Δt.The motion state includes driving direction, travel speed, acceleration of vehicle etc..
When the motor vehicle, non-motor vehicle or pedestrian for having surveyed motor vehicle and its opposite by laser radar and millimetre-wave radar
Relative distance and relative velocity after, the time Δ t, such as Fig. 6 required when the two is at a distance of 150 meters are judged according to the data of measurement
It is shown, by taking current vehicle and front vehicles relative fashion as an example, it is described as follows:
If vehicle and opposite vehicle are at a distance of x1Rice.The speed of the vehicle on opposite is v1, acceleration a1；Current vehicle
Speed be v2, acceleration a2；v2It can be read according to the speed disc of vehicle.
(1) itself and to face velocity be at the uniform velocity when:
(2) vehicle at the uniform velocity, opposite vehicle accelerate when:
(3) vehicle at the uniform velocity, when the vehicle deceleration of opposite:
(4) vehicle accelerate, opposite vehicle at the uniform velocity when:
(5) vehicle accelerates, when opposite vehicle accelerates:
(6) vehicle accelerates, when the vehicle deceleration of opposite:
(7) vehicle slow down, opposite vehicle at the uniform velocity when:
(8) vehicle slows down, when opposite vehicle accelerates:
(9) vehicle slows down, when the vehicle deceleration of opposite:
Current vehicle traveling can be calculated by the data that above-mentioned formula and laser radar and millimetre-wave radar detect
To with front vehicles or pedestrian at a distance of 150 meters of time interval Δ t.
The stepless regulated letter by the light intensity of high beam and angle initialization to be smooth change at any time of the step 6 of the disclosure
Number can set linear relationship for the light intensity of high beam and its angle, the relationship of the light intensity of high beam and time can be set
It is set to linear relationship.According to the relative distance and phase between laboratory vehicle and the motor vehicle, non-motor vehicle or pedestrian on its opposite
The time required when the two is at a distance of 150 meters is obtained to speed, according to the number of the time t and vehicular high beam lamp that are calculated
It is calculated, the light intensity and angle for obtaining high beam realize the stepless regulated of far and near lamp with the transformation of the two distance.
The headlamp of the present embodiment realizes that the function of high beam and dipped headlight is realized by the brightness shone before adjusting and angle,
It is referred to as high beam when angle and brightness meet the requirement of high beam, is known as when angle and brightness meet the requirement of dipped headlight
Dipped headlight.The use standard of long-and-short distant light are as follows: the total light intensity of high beam is 224000cd, with illumination perpendicular to ground for 0 ° of angle,
Illumination irradiating angle is between 70 °~80 °.The total light intensity of dipped headlight be 1cd, angle: 50 °~55 °, dipped headlight be two when,
The light intensity of each dipped headlight is 0.5cd.
The variation function of high beam angle and high beam light intensity can be with are as follows:
Wherein,For the irradiating angle of high beam,For the lighting angle when vehicle head lamp is high beam,Vehicle
Lighting angle when headlamp is dipped headlight, I are high beam light intensity, IFarFor single light when vehicle head lamp is high beam
According to intensity, ICloselySingle lamp intensity of illumination when vehicle head lamp is dipped headlight.
The variation function of high beam light intensity and time can be with are as follows:
I=σ1*t+IClosely (2)
Wherein, I is high beam light intensity, and t is the time,IFarFor single lamp when vehicle head lamp is high beam
Intensity of illumination, ICloselyVehicle head lamp be dipped headlight when single lamp intensity of illumination, Δ t be current vehicle travel to front vehicles or
Pedestrian is at a distance of 150 meters of time interval.
IFar、ICloselyIt is the numerical value that standard setting is used according to the far and near lamp quantity and distance-light of current vehicle.
As shown in figure 3, the total light intensity of high beam requires to be 224000cd when the number of high beam and dipped headlight is 2,
The sum of intensity of illumination of all high beams is greater than 224000cd and just meets the requirements, then the light intensity of each high beam can be set as
112000cd, the total light intensity of dipped headlight are 1cd, and the intensity of illumination of each dipped headlight can be 0.5cd,It can be set as 70 °
Any number between~80 °, the present embodiment are set as 80 °,It can be set as 50 °~55 °, the present embodiment is set as
50 °, then the irradiating angle of high beam with light intensity variation are as follows:
Then the light intensity of high beam is with time change are as follows:
I=σ1*t+0.5
Wherein,
As shown in figure 4, then the light intensity of each high beam can be set as when the number of high beam and dipped headlight is 4
56000cd, can close two of them high beam before high beam is adjusted or after adjusting, final there are two dipped headlight is bright,
The intensity of illumination of each dipped headlight can be 0.5cd,It can be set as 80 °,It can be set as 50 °, then high beam
Irradiating angle with light intensity variation are as follows:
Then the light intensity of high beam with the time variation are as follows:
I=σ1* t+0.5, wherein
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Although above-mentioned be described in conjunction with specific embodiment of the attached drawing to the disclosure, model not is protected to the disclosure
The limitation enclosed, those skilled in the art should understand that, on the basis of the technical solution of the disclosure, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within the protection scope of the disclosure.
Claims (10)
1. a kind of headlight for vehicle lamp intelligent stepless regulates and controls method, characterized in that include the following steps:
The current environment data for acquiring current vehicle traveling control according to environmental data and open high beam or dipped headlight, if opened
High beam has been opened to perform the next step；
Judge whether the front of current vehicle there are other vehicles or pedestrians, if not provided, high-beam light shining；Otherwise it performs the next step；
Judge whether the speed of current vehicle is less than the regulation speed of vehicle switch-on dim light, if so, being switched to dipped headlight, otherwise
It performs the next step；
Current vehicle and front vehicles or pedestrian's relative distance and travel speed are acquired, if relative distance is greater than set distance,
It performs the next step；Otherwise, it is switched to dipped headlight；
According to the relative distance and travel speed of acquisition, calculate current vehicle travel to front vehicles or pedestrian at a distance of setting away from
From time interval Δ t；
The variation function and high beam angle and high beam of high beam light intensity and time are established according to the time interval Δ t of acquisition
The variation function of light intensity, light intensity and angle to high beam carry out stepless regulated according to variation function.
2. a kind of headlight for vehicle lamp intelligent stepless as described in claim 1 regulates and controls method, it is characterized in that: high beam light intensity and when
Between variation function and the variation function of high beam angle and high beam light intensity be all linear function.
3. a kind of headlight for vehicle lamp intelligent stepless as claimed in claim 2 regulates and controls method, it is characterized in that: high beam angle and remote
The strong variation function of light light are as follows:
Wherein,For the irradiating angle of high beam,For the lighting angle when vehicle head lamp is high beam,Before vehicle
Lighting angle when illuminator is dipped headlight, I are high beam light intensity, IFarIt is single light when vehicle head lamp is high beam according to strong
Degree, ICloselySingle lamp intensity of illumination when vehicle head lamp is dipped headlight.
4. a kind of headlight for vehicle lamp intelligent stepless as claimed in claim 2 regulates and controls method, it is characterized in that: high beam light intensity and when
Between variation function are as follows:
I=σ1*t+IClosely
Wherein, I is high beam light intensity, and t is the time,IFarIt is single light when vehicle head lamp is high beam according to strong
Degree, ICloselyVehicle head lamp be dipped headlight when single lamp intensity of illumination, Δ t be current vehicle travel to front vehicles or pedestrian's phase
Time interval away from set distance.
5. a kind of headlight for vehicle lamp intelligent stepless as described in claim 1 regulates and controls method, it is characterized in that:
The environmental data includes weather visibility and extraneous intensity of illumination, is controlled according to environmental data and opens high beam or dipped beam
The method of lamp specifically:
When weather visibility is less than 50 meters, or extraneous intensity of illumination is less than 0.3cd and is not less than 0.2cd, opens dipped headlight；
When weather visibility is not less than 50 meters, and extraneous intensity of illumination is not less than 0.3cd, closes headlamp；
When extraneous intensity of illumination is lower than 0.2cd, unlatching headlamp.
6. a kind of headlight for vehicle lamp intelligent stepless as described in claim 1 regulates and controls method, it is characterized in that: according to the opposite of acquisition
Distance and travel speed calculate current vehicle and travel to the time interval Δ t with front vehicles or pedestrian at a distance of set distance
Method specifically:
The motion state of current vehicle and front vehicles is determined according to the collected data；
Current vehicle is calculated according to determining motion state to travel to front vehicles or pedestrian between the time of set distance
Every Δ t.
7. a kind of headlight for vehicle lamp intelligent stepless regulation device, it is characterized in that: include environmental detection sensor, infrared thermoviewer,
Test the speed range unit and master controller, the environmental detection sensor, infrared thermoviewer, test the speed range unit respectively with main control
Device connection, the master controller are connect with the headlamp on vehicle, and the master controller executes program and realizes such as claim 1-6
The step of a kind of described in any item headlight for vehicle lamp intelligent stepless regulation methods.
8. a kind of headlight for vehicle lamp intelligent stepless regulation device as claimed in claim 7, it is characterized in that: the environment measuring passes
Sensor includes visibility detector and illumination instrument, and the visibility detector and illumination instrument are connect with master controller respectively.
9. a kind of headlight for vehicle lamp intelligent stepless regulation device as claimed in claim 7, it is characterized in that: the ranging dress that tests the speed
It sets including laser radar and millimetre-wave radar, the laser radar and millimetre-wave radar are connect with master controller respectively.
10. a kind of vehicle, it is characterized in that: including a kind of headlight for vehicle lamp intelligent stepless regulation device as described in claim 7-9.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN109795400B (en) | 2020-05-22 |
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