CN103661083A - Self-adaptive light and shade cut-off line system and control method thereof - Google Patents
Self-adaptive light and shade cut-off line system and control method thereof Download PDFInfo
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- CN103661083A CN103661083A CN201310268236.9A CN201310268236A CN103661083A CN 103661083 A CN103661083 A CN 103661083A CN 201310268236 A CN201310268236 A CN 201310268236A CN 103661083 A CN103661083 A CN 103661083A
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- China
- Prior art keywords
- cut
- line system
- self adaptation
- vehicle
- relative velocity
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1438—Actuating means for dimming masks or screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/0017—Devices integrating an element dedicated to another function
- B60Q1/0023—Devices integrating an element dedicated to another function the element being a sensor, e.g. distance sensor, camera
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
- F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
- F21S41/692—Shields, i.e. screens not creating an image meant to be projected
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
- F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention provides a self-adaptive light and shade cut-off line system including a relative speed calculating part calculating relative speed of vehicle; and a vehicle distance calculating part calculating vehicle distance after a system response time based on the relative speed. According to the invention, considering response speed of the self-adaptive light and shade cut-off line system and based on the relative speed of the vehicle in the opposite or in the front part, accurate lighting can be performed, so that a problem of dazzling a driver in the vehicle in the opposite can be avoided and driver sight can be improved.
Description
Technical field
The present invention relates to self adaptation "cut-off"line system and control method thereof, relate in particular to a kind of speed of response of considering self adaptation "cut-off"line system, according to the relative velocity of oncoming vehicle or front vehicles, can carry out self adaptation "cut-off"line system and the control method thereof of light beam irradiates accurately.
Background technology
Self adaptation "cut-off"line (aCOL, Adaptive Cut-Off Line) system is other vehicle of identification and automatically regulate the device of front lamp of vehicle.
Self adaptation "cut-off"line system is when there is no car, operation country beam (high beam), and monitor while associating with vehicle when camera, according to following distance with specific spacing driven shield actuator, thus, in not causing the twinkling scope of car, irradiate distance light line to greatest extent, thereby, guarantee the system of the visiblity of chaufeur.
But, existing self adaptation "cut-off"line system, reckon without the relative velocity of the other side's vehicle and the speed of response of system, therefore, while only having vehicle to remain static, just move adaptively light path, and light path changes with specific distance, therefore the chaufeur that, existence cannot make to be provided with the vehicle of self adaptation "cut-off"line system keeps the more problem of wide visual field.
Summary of the invention
Technical matters
Therefore,, for solving the above problems, object of the present invention, for a kind of self adaptation "cut-off"line system is provided, is considered the speed of response of self adaptation "cut-off"line system, according to the relative velocity of oncoming vehicle or front vehicles, can carry out light beam irradiates accurately.
And object of the present invention, for a kind of control method of self adaptation "cut-off"line system is provided, is considered the speed of response of self adaptation "cut-off"line system, according to the relative velocity of oncoming vehicle or front vehicles, can carry out light beam irradiates accurately.
Technical scheme
For realizing object described above, self adaptation "cut-off"line system provided by the invention comprises: relative velocity calculating part, and it calculates the relative velocity of the other side's vehicle; And following distance calculating part, it is according to the following distance after described relative velocity computing system response time.
Described self adaptation "cut-off"line system can also comprise: shielding angle calculating part, it calculates the angle of headlight shielding according to described following distance.
Described self adaptation "cut-off"line system can also comprise: driver control portion, it is controlled and makes described shielding device driven with the angle calculating.
In addition, for realizing object described above, the control method that the invention provides self adaptation "cut-off"line system comprises: the step of calculating the relative velocity of the other side's vehicle; And according to described relative velocity, the step of the following distance after computing system response time.
The control method of described self adaptation "cut-off"line system can also comprise: the step of calculating the angle of headlight shielding according to described following distance.
The control method of described self adaptation "cut-off"line system can also comprise: by driven shield actuator, make described shielding device driven with the angle calculating.
Technique effect
Self adaptation "cut-off"line system of the present invention and control method thereof have following effect: the speed of response of considering self adaptation "cut-off"line system, according to the relative velocity of oncoming vehicle or front vehicles, can carry out light beam irradiates accurately, thereby can avoid causing the other side vehicle driver to dazzle, and improve the visiblity of chaufeur.
Accompanying drawing explanation
Fig. 1 is the block diagram of the self adaptation "cut-off"line system of one embodiment of the invention;
Fig. 2 is the schematic diagram of explanation running state of self adaptation "cut-off"line system when having oncoming vehicle;
Fig. 3 is the schematic diagram of explanation running state of self adaptation "cut-off"line system when having front vehicles;
Fig. 4 is the diagram of circuit of control method of the self adaptation "cut-off"line system of one embodiment of the invention.
Description of reference numerals
10: this car 11: oncoming vehicle
12: front vehicles 100: self adaptation "cut-off"line system
110: relative velocity calculating part 120: following distance calculating part
130: shielding angle calculating part 140: driver control portion
The specific embodiment
Below, the preferred embodiment that present invention will be described in detail with reference to the accompanying.First, at the inscape mark to each accompanying drawing during with reference to Reference numeral, for identical inscape, even if should be noted and be labeled on different accompanying drawings, also to mark as much as possible identical Reference numeral.And, the following describes the preferred embodiments of the present invention, but technological thought of the present invention not being subject to the restriction of the preferred embodiments of the present invention, the those of ordinary skill in field of the present invention can carry out various deformation and implement.
Fig. 1 is the block diagram of the self adaptation "cut-off"line system of one embodiment of the invention.
With reference to Fig. 1, according to the self adaptation "cut-off"line system 100 of one embodiment of the invention, comprise: relative velocity calculating part 110, it calculates the relative velocity of the other side's vehicle; Following distance calculating part 120, it is according to relative velocity, the following distance after computing system response time; Shielding angle calculating part 130, it calculates the angle of the shielding of headlight according to following distance; Driver control portion 140, it is controlled to shield device driven according to the angle of calculating.
Relative velocity calculating part 110, obtains image information from the camera being arranged on vehicle, calculates the relative velocity of sailing the oncoming vehicle 11 that comes or the front vehicles 12 lanes in the same way from reverse track.That is, the relative velocity calculating part 110 of the present embodiment, calculates and take the relative velocity of the other side's vehicle that this car 10 is benchmark.
Relative velocity is value by Speed Setting from the other side's vehicle coming to this car 10 that sail.The situation of oncoming vehicle 11, for the speed of the other side's vehicle adds the value of the moving velocity of this car 10; The situation of front vehicles 12, for the moving velocity of this car 10 deducts the value of the speed of the other side's vehicle.Now, the situation of front vehicles 12, when the speed of the other side's vehicle is greater than the moving velocity of this car 10, the other side's vehicle is away from this car 10 gradually, and therefore, the value of relative velocity becomes negative value.
Following distance calculating part 120, it is that relative velocity is benchmark that the other side's vehicle of take sails to this car 10 speed of coming, and taking into account system response time, the other side's vehicle after computing system response time and the following distance between this car 10.
System response time, for example, it can comprise: the time that monitors the other side's vehicle by camera for from monitoring the other side's vehicle to the time forming till self adaptation "cut-off"line; After monitoring, calculate the control processing time of relative velocity and following distance etc.; And the time of driven shield drg etc.System response time with the value input of measuring in advance for calculating.
The accompanying drawing of the running state of self adaptation "cut-off"line system when Fig. 2 has oncoming vehicle for explanation.
With reference to Fig. 2 casehistory.Suppose that this car 10 travels with the speed of 90km/h, oncoming vehicle 11 is sailed with the speed of 90km/h, and following distance is 140m.If during the distance of oncoming vehicle 11 in 140m, camera starts to monitor oncoming vehicle 11.System response time, (driving time of camera monitoring time+control processing time+actuator) interior vehicle still moved.Now, supposing the system response time is 1.5 seconds, and the following distance after 1.5 seconds is the 65m after deducting 75m.
That is, following distance is input as when camera start to monitor oncoming vehicle 11 time point 140m and while starting shielding device, because of needs system reaction time, form the time point of self adaptation "cut-off"line of 140m for when following distance is 65m.Thereby, the chaufeur of oncoming vehicle 11 is dazzled, need make corresponding modification.
In the following distance calculating part 120 of the present embodiment, will system response time be made as Ts[s], relative velocity is Vrel[m/s], taking into account system speed of response, the function by the time as described below calculates Ts[s] following distance afterwards.
Distance(Ts+Torg)=Distance(Torg)-Ts*Vrel
At this, Distance is following distance, and Torg is current time, and Ts is system response time, and Vrel is relative velocity.
Shielding angle calculating part 130, the following distance (Distance (Ts+Torg)) of take after the system response time of following distance calculating part 120 calculating is benchmark, calculate the angle of headlight shielding, be used to form and consider the self adaptation "cut-off"line that is equivalent to system response time following distance afterwards.
The angle of the headlight shielding that makes to calculate transfers to driver control portion 140, and driver control portion 140 controls and drives actuators, so that according to the driven headlight shielding of the angle of calculating device.
Thus, calculate the relative velocity of oncoming vehicle 11, and taking into account system response time, the applicable following distance that forms the time point of self adaptation "cut-off"line, thereby, can prevent from causing the chaufeur of the other side's vehicle to dazzle.
And, the accompanying drawing of the running state of self adaptation "cut-off"line system when Fig. 3 has front vehicles for explanation.
Suppose, this car 10 that self adaptation "cut-off"line system 100 is installed travels with the speed of 40km/h, and front vehicles 12 is travelled with the speed of 100km/h, and following distance is 140m.Identical with the situation of above-mentioned oncoming vehicle 11, as considered, relative velocity and system response time, the following distance after system response time are 165m.Thus, calculating following distance is 140m, and while being applicable to self adaptation "cut-off"line system 100, self adaptation "cut-off"line forms 140m, and, and front vehicles 12 between, the distance field that the light beam of headlight is not irradiated to is 25m.
In the case, the following distance that the following distance calculating part 120 of the present embodiment calculated after system response time, and be sent to shielding angle calculating part 130, thereby the miles of relative movement of controlling the formation prolongation front vehicles 12 that makes self adaptation "cut-off"line is 25m.
In following distance calculating part 120, supposing the system response time is Ts[s], relative velocity is Vrel[m/s], taking into account system speed of response, the function by the time as described below calculates Ts[s] following distance afterwards.
Distance(Ts+Torg)=Distance(Torg)–Ts*Vrel
At this, Distance is following distance, and Torg is current time, and Ts is system response time, and Vrel is relative velocity.Now, the speed that relative velocity is this car 10 deducts the value of the speed of front vehicles 12.Therefore, front vehicles 12 is compared in the fast above-mentioned example of this car 10 moving velocitys, the value of relative velocity becomes negative value, thereby the following distance after system response time (Distance (Ts+Torg)) is by the following distance (Distance (Torg)) being greater than when monitoring front vehicles 12.
Thus, according to self adaptation "cut-off"line system 100 of the present invention, consider the speed of response of self adaptation "cut-off"line system 100, according to the relative velocity of oncoming vehicle or front vehicles, carry out light beam irradiates accurately, thereby have, can prevent from causing the other side vehicle driver to dazzle and improve the effect of the visiblity of chaufeur.
The control method of the self adaptation "cut-off"line system of one embodiment of the invention is described in addition, with reference to the accompanying drawings.But, the content identical with the part of explanation in the self adaptation "cut-off"line system 100 of one embodiment of the invention that description thereof is omitted.
Fig. 4 is the diagram of circuit of control method of the self adaptation "cut-off"line system of one embodiment of the invention.
With reference to Fig. 4, the control method of the self adaptation "cut-off"line system of one embodiment of the invention comprises the following steps: the step S100 of monitoring the other side vehicle; Calculate the step S200 of the relative velocity of the other side's vehicle; According to relative velocity, the step S300 of the following distance after computing system response time; According to following distance, calculate the step S400 of the angle of headlight shielding; Driven shield actuator makes the angle driven step S500 of shield driver to calculate.
In the step S100 of monitoring the other side vehicle, can be by the image information of camera, monitoring the other side vehicle.
In the step S200 of relative velocity that calculates the other side's vehicle, utilize the image information of camera, calculate the relative velocity of the other side's vehicle.
In calculating the step S300 of following distance, the following distance based on after relative velocity computing system response time.
In the step S400 of angle that calculates headlight shielding, calculate shielding device and drive necessary angle so that according to following distance, and the other side's vehicle between form the light path of self adaptation "cut-off"line.
In the step S500 of driven shield actuator, control shield driver so that shielding device is driven by the angle calculating.
Thus, according to the control method of self adaptation "cut-off"line system of the present invention, consider the speed of response of self adaptation "cut-off"line system 100, and according to the relative velocity of oncoming vehicle or front vehicles, carry out light beam irradiates accurately, thereby, have and can prevent from causing the other side vehicle driver to dazzle, and improve the effect of the visiblity of chaufeur.
Each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a self adaptation "cut-off"line system, is characterized in that, comprising:
Relative velocity calculating part, it calculates the relative velocity of the other side's vehicle; And
Following distance calculating part, it is according to the following distance after described relative velocity computing system response time.
2. self adaptation "cut-off"line system according to claim 1, is characterized in that, also comprises:
Shielding angle calculating part, it calculates the angle of headlight shielding according to described following distance.
3. self adaptation "cut-off"line system according to claim 2, is characterized in that, also comprises:
Driver control portion, it is controlled and makes described shielding device driven with the angle calculating.
4. a control method for self adaptation "cut-off"line system, is characterized in that, comprising:
Calculate the step of the relative velocity of the other side's vehicle; And
According to described relative velocity, the step of the following distance after computing system response time.
5. the control method of self adaptation "cut-off"line system according to claim 4, is characterized in that, also comprises:
According to described following distance, calculate the step of the angle of headlight shielding.
6. the control method of self adaptation "cut-off"line system according to claim 5, is characterized in that, also comprises:
By driven shield actuator, make described shielding device driven with the angle calculating.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2012-0096968 | 2012-09-03 | ||
KR1020120096968A KR20140030597A (en) | 2012-09-03 | 2012-09-03 | Adaptive cut-off line system and control method thereof |
Publications (2)
Publication Number | Publication Date |
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CN103661083A true CN103661083A (en) | 2014-03-26 |
CN103661083B CN103661083B (en) | 2016-04-06 |
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CN201310268236.9A Active CN103661083B (en) | 2012-09-03 | 2013-06-28 | Self adaptation "cut-off"line system and control method thereof |
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KR (1) | KR20140030597A (en) |
CN (1) | CN103661083B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111731182A (en) * | 2020-02-19 | 2020-10-02 | 江苏大学 | Dipped beam illumination control system and method capable of adapting to severe weather |
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CN1487889A (en) * | 2001-01-19 | 2004-04-07 | ��˹�ٷҡ�����˹������ | Headlight unit for single-track two-wheeled vehicles |
US20040213012A1 (en) * | 2003-04-23 | 2004-10-28 | Kiyotaka Fukawa | Headlamp for vehicle |
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JP2007099078A (en) * | 2005-10-04 | 2007-04-19 | Denso Corp | Headlight control device for vehicle |
DE102006013700B3 (en) * | 2006-03-24 | 2007-10-11 | Robert Bosch Gmbh | Device for prevention of glare at vehicle by headlights of forthcoming vehicles, has sensor is arranged in optical path in polarization device, which executes light delay measuring for determining distance |
CN101190664A (en) * | 2006-12-01 | 2008-06-04 | 丰田自动车株式会社 | Vehicular illumination system |
CN101608763A (en) * | 2008-06-20 | 2009-12-23 | 株式会社小糸制作所 | Vehicle headlamp apparatus |
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2012
- 2012-09-03 KR KR1020120096968A patent/KR20140030597A/en not_active Application Discontinuation
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2013
- 2013-06-28 CN CN201310268236.9A patent/CN103661083B/en active Active
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US5373424A (en) * | 1992-10-21 | 1994-12-13 | Koito Manufacturing Co., Ltd. | Automotive projection headlamp |
CN1487889A (en) * | 2001-01-19 | 2004-04-07 | ��˹�ٷҡ�����˹������ | Headlight unit for single-track two-wheeled vehicles |
US6960005B2 (en) * | 2002-09-12 | 2005-11-01 | Koito Manufacturing Co., Ltd. | Vehicle headlamp apparatus |
US20040213012A1 (en) * | 2003-04-23 | 2004-10-28 | Kiyotaka Fukawa | Headlamp for vehicle |
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DE102006013700B3 (en) * | 2006-03-24 | 2007-10-11 | Robert Bosch Gmbh | Device for prevention of glare at vehicle by headlights of forthcoming vehicles, has sensor is arranged in optical path in polarization device, which executes light delay measuring for determining distance |
CN101190664A (en) * | 2006-12-01 | 2008-06-04 | 丰田自动车株式会社 | Vehicular illumination system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111731182A (en) * | 2020-02-19 | 2020-10-02 | 江苏大学 | Dipped beam illumination control system and method capable of adapting to severe weather |
Also Published As
Publication number | Publication date |
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KR20140030597A (en) | 2014-03-12 |
CN103661083B (en) | 2016-04-06 |
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