CN110371015A - A kind of control method of car headlamp - Google Patents
A kind of control method of car headlamp Download PDFInfo
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- CN110371015A CN110371015A CN201910654470.2A CN201910654470A CN110371015A CN 110371015 A CN110371015 A CN 110371015A CN 201910654470 A CN201910654470 A CN 201910654470A CN 110371015 A CN110371015 A CN 110371015A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000005286 illumination Methods 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract 2
- 239000000758 substrate Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 210000003195 fascia Anatomy 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
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Classifications
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- 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
- B60Q1/06—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 adjustable, e.g. remotely-controlled from inside vehicle
- B60Q1/08—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 adjustable, e.g. remotely-controlled from inside vehicle automatically
-
- 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
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/42—Forced cooling
- F21S45/43—Forced cooling using gas
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
-
- 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
- B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
- B60Q2400/20—Multi-color single source or LED matrix, e.g. yellow blinker and red brake lamp generated by single lamp
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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 belongs to technical field of automobile illumination, and in particular to a kind of control method of car headlamp.The method is to realize the brightness regulation to dipped beam module by under-voltage protection, LED light source module cooling, module cooling and distance light change detection etc..Blower PID adjustment mechanism can make rotation speed of fan promote the more smooth peace and quiet in ground and LED temperature is effectively reduced；The urban district low-light level adjusting of dipped beam module is avoided because accident caused by follow the bus is highlighted occurs, and is suitable for city traffic driving, greasy weather or rainy day and is driven.
Description
Technical field
The invention belongs to technical field of automobile illumination, and in particular to a kind of control method of car headlamp.
Background technique
LED lamp has several advantages for being better than conventional light source, as LED power constantly improves, the LED light of high brightness
There is the trend for replacing traditional lighting lamps and lanterns, application potential is very big.Also there is this extensive in vehicle-mounted lighting area LED lamp
Using.From 1987, China started after installing high-mount stop lamp on automobile, in fascia and other various illumination portions
The light source divided all gradually substitutes conventional light source using LED.
LED is substantially a kind of semiconductor diode, and principle of luminosity is based on energy excitation electron transition to be formed
Photon radiation shines, its light emission luminance is determined by the forward current for flowing through PN junction, rather than is measured with holding voltage.LED's
PN junction has negative temperature coefficient, and temperature is higher, and barrier potential is lower, if using current limiting measures, under constant forward voltage,
Conducting electric current can be increasing, causes bigger fever, and damages element.That is the service life of LED is related with temperature,
Operating temperature is higher, and service life is shorter.
Being different from halogen lamp current reduces with voltage there is no low-voltage risk, and current automobile is mostly LED light, and
Low-voltage will cause the electrical system on high current damage vehicle, especially some old storage batterys under current constant control.Meanwhile automobile
It is travelled in follow the bus in urban district, since insurance, reflective will cause of chromium plating item drive fatigue, dizziness to cause traffic after front truck
Accident.Therefore, it is necessary to propose a kind of LED dipped beam brightness adjusting method adjusted under the Car following model of automotive-type urban district.
Summary of the invention
In view of this, the present invention provides a kind of control methods of car headlamp.
To achieve the above object, the present invention uses following scheme:
The method, comprising the following steps:
Whether system voltage is still in low-pressure state after detection system powers on 5-10s, if so, starting low current protection mould
Formula, the low-pressure state refer to that system voltage is less than 10.5v；The low current protection mode includes: to be adjusted by PWM to reduce
The electric current of dipped beam module 50%.
Specifically, MCU generates PWM waveform, then RC filters to obtain voltage value control LED current, changes PWM duty cycle tune
Save the voltage value of response.
Further, the method also includes: whether the temperature for detecting light source module is greater than preset first temperature threshold, if
It is to start blower PID adjustment mechanism to adjust rotation speed of fan.
Specifically, MCU, which generates pwm waveform adjustment duty ratio, controls rotation speed of fan.
Further, first temperature threshold is 65 DEG C -70 DEG C.
Further, the method also includes following steps:
Whether the temperature for detecting the light source module is more than preset second temperature threshold value, if so, starting light source PID is adjusted
Mechanism is to reduce the electric current of the dipped beam module 30%.
Specifically, working as LED substrate temperature is greater than 95 DEG C, starting PID control is (by calculating front substrate temperature and last time
The difference of substrate temperature and the temperature trend of nearest a period of time 1/255 output valve for adjusting pwm in proportion), some embodiments
In: Current Temperatures are greater than last time temperature, and nearest temperature trend is that the 1/255 adjusting pwm in proportion reduced is reduced；Current Temperatures are small
It is that the pwm risen is kept in the nearest temperature trend of last time temperature；It is to reduce that Current Temperatures, which are less than the nearest temperature trend of last time temperature,
Nearest temperature trend be reduce in proportion 1/255 adjust pwm increase, when substrate temperature has to be larger than 95 DEG C.Entire dipped beam
The electric current of module at most reduces by 30%
Further, the method also includes following steps:
Whether the temperature for detecting the module is greater than preset third temperature threshold, if so, starting light source PID adjusts machine
It makes to reduce the electric current of the dipped beam module 30%.
Further, the second temperature threshold value is 105 DEG C -115 DEG C；Or, the third temperature threshold is 100 DEG C -110
℃。
Further, the method also includes steps:
Whether 3-5 distance light switching is occurred in detection system 1-3s, if so, nearly optical module is switched to city traffic driving mould
Formula；Otherwise conventional operating mode is kept.
Further, the illumination of the city traffic driving mode is 80-90Lx, colour temperature 5500-5650K, preferably 5600K；It is conventional
The illumination of luminance patterns is 110-120Lx, colour temperature 6000-6150K, preferably 6100K.
Further, it after the operating mode of the dipped beam module is switched to city traffic driving mode, further comprises the steps of:
Whether 3-5 distance light switching is occurred in detection system 1-3s, if so, the operating mode of the dipped beam module is switched
For conventional operating mode；Otherwise city traffic driving mode is kept.
The beneficial effects of the present invention are:
1) under-voltage protection prevents high current to reduce low-voltage risk to the damage of electrical system on vehicle；
2) blower PID adjustment mechanism can make rotation speed of fan promote the more smooth peace and quiet in ground and LED temperature is effectively reduced；
3) light source PID saves tune mechanism and makes that visually apparent brightness change can not be perceived, and adjusting is very natural；
4) the urban district low-light level adjusting of dipped beam module is avoided because accident caused by follow the bus is highlighted occurs, and is driven suitable for urban district
It sails, greasy weather or rainy day drive.
Detailed description of the invention
Fig. 1 automobile LED dipped beam control logic figure.
Fig. 2 automobile LED dipped beam controls hardware schematic.
Specific embodiment
Illustrated embodiment is in order to which preferably the present invention will be described, but is not that the contents of the present invention are limited only to institute
For embodiment.So those skilled in the art according to foregoing invention content to embodiment carry out it is nonessential improvement and
Adjustment, still falls within protection scope of the present invention.
Hereinafter, the application will be described in detail with reference to appended attached drawing, those skilled in the art is easy
Implement the present invention in ground.However, the present invention can be realized by different manners, and it is not limited to exemplary specific reality described herein
Apply scheme.In the accompanying drawings, it in order to which exemplary implementation scheme is explicitly described, is indicated by similar attached drawing label similar or similar
Element, even if these elements are drawn in different attached drawings.
With reference to discussed below, it is to be understood that the target and advantage of exemplary implementation scheme of the invention, and make this
The target and advantage of the exemplary implementation scheme of invention are more obvious, but the target of exemplary implementation scheme of the invention and excellent
Point is not limited to be described below.In the description of exemplary implementation scheme, when think may to explaining in detail for the prior art
When unnecessarily obscuring emphasis of the invention, these can be explained in detail omission to the prior art.
Embodiment one
Referring to Fig. 1 and 2, Fig. 1 is a kind of flow chart of an embodiment of the control method of car headlamp of the invention, tool
Body, the control method of the present embodiment comprising steps of
S11, whether system voltage is still in low-pressure state after detection system powers on 5-10s, if so, step S12 is executed, it is no
Then, step S13 is executed.
In the present embodiment, low-pressure state refers to that system voltage is less than the state of under-voltage protection threshold value 10.5v.
In one embodiment, the analog-digital converter ADC module in the power-supply controller of electric of car headlamp can detection system
Then the input voltage value of system powers on the input voltage detected after 5-10s by the operation processing unit judgement of MCU control circuit
Whether value is less than under-voltage protection threshold value 10.5v, if defeated be less than under-voltage protection threshold value, the operation processing unit of MCU control circuit
Start low current protection mode, to protect the electrical system of headlamp, mitigates storage battery burden.
Further, when detecting that system voltage is in low-pressure state, the dipped headlight flashing of light source is controlled, when detecting
The duty ratio of under-voltage PWM is 110, when the duty ratio of the under-voltage value (± 0.4v of threshold value) PWM in Near Threshold is repeatedly past from 110
It is upper to add, this state 5 seconds or so.
S12 starts low current protection mode, executes step S14.
In one embodiment, which is to being adjusted by PWM to reduce dipped beam module 50%
Electric current, specifically, for the operation processing unit of MCU control circuit by under-voltage protecting circuit, i.e. divider resistance carries out partial pressure realization
Under-voltage protection, meanwhile, input dipped beam module is adjusted by control pwm signal generation unit PWM drive signal generated
Voltage, to reduce the electric current of dipped beam module 50%.
S13, decision-making system voltage is normal, executes step S14.
In one embodiment, if the operation processing unit of MCU control circuit is judged to power on 5-10s
The input voltage value detected afterwards is greater than or equal to under-voltage protection threshold value 10.5v, then decision-making system voltage is normal, and
Execute step S14.
Whether S14, the temperature for detecting light source module are greater than preset first temperature threshold, if so, step S15 is executed, it is no
Then continue to test.
In the present embodiment, which is 65 DEG C -70 DEG C.
In one embodiment, the temperature sensing circuit in detects the temperature value of light source module respectively, and by MCU
Whether the temperature for the light source module that the operation processing unit judgement of control circuit detects is greater than preset first temperature threshold.
S15 starts blower PID adjustment mechanism to adjust rotation speed of fan, executes step S16.
In one embodiment, if the temperature for the light source module that the operation processing unit judgement of MCU control circuit detects
Degree is greater than preset first temperature threshold, then is calculated between detection temperature value and preset temperature threshold by the pid algorithm prestored
Temperature gap, the operation processing unit of MCU control circuit controls the revolving speed of blower according to temperature gap, i.e., by adjusting wind to reduce
The temperature of light source module.
Specifically, starting to control when radiator temperature is greater than 60 DEG C, when radiator temperature is greater than 95 DEG C, rotation speed of fan increases
Add 70%.
Specifically, working as LED substrate temperature is greater than 60 DEG C, starting PID control is (by calculating front substrate temperature and last time
The difference of substrate temperature and the temperature trend of nearest a period of time 1/255 output valve for adjusting blower pwm in proportion), current temperature
Degree is greater than last time temperature, and nearest temperature trend is that the 1/255 adjusting blower pwm in proportion reduced increases；Current Temperatures are less than upper
The secondary nearest temperature trend of temperature is that the blower pwm risen is kept；It is to reduce that Current Temperatures, which are less than the nearest temperature trend of last time temperature,
Nearest temperature trend be reduce in proportion 1/255 adjust blower pwm reduce, when substrate temperature has to be larger than 100 DEG C.Entirely
The control pwm duty ratio of blower at most increases by 80%.
Whether S16, the temperature for detecting light source module are greater than preset second temperature threshold value, if so, step S17 is executed, it is no
Then follow the steps S14.
In the present embodiment, which is 105 DEG C -115 DEG C.
In one embodiment, the temperature sensing circuit in detects the temperature value of light source module respectively, and by MCU
Whether the temperature for the light source module that the operation processing unit judgement of control circuit detects is greater than preset second temperature threshold value.
S17 starts light source PID adjustment mechanism to reduce the electric current of dipped beam module 30%.
In one embodiment, if the temperature for the light source module that the operation processing unit judgement of MCU control circuit detects
Degree is greater than preset second temperature threshold value, then is calculated between detection temperature value and preset temperature threshold by the pid algorithm prestored
Temperature gap, the operation processing unit of MCU control circuit adjusts the PWM wave of PWM generation unit output according to temperature gap
Duty ratio, to reduce the voltage of input dipped beam module, the current value for passing through LED reduces by 30%, and being adjusted by PID can be achieved
Non-pole light regulating can not visually discover brightness and significantly change.
Embodiment two
The present invention also provides the control methods of another car headlamp comprising each in above-described embodiment one
Step, unlike, the control method of the present embodiment determine to obtain system it is normal after, further comprise the steps of:
Whether S21, the temperature for detecting power module are greater than preset third temperature threshold, if so, executing S17, otherwise hold
Row step S21.
In the present embodiment, which is 100 DEG C -110 DEG C.
In this specific embodiment, the temperature sensing circuit in detects the temperature value of power module respectively, and by
Whether the temperature for the light source module that the operation processing unit judgement of MCU control circuit detects is greater than preset third temperature threshold
Value.
S17 starts light source PID adjustment mechanism to reduce the electric current of dipped beam module 30%.
In one embodiment, if the temperature for the power module that the operation processing unit judgement of MCU control circuit detects
Degree is greater than preset third temperature threshold, then is calculated between detection temperature value and preset temperature threshold by the pid algorithm prestored
Temperature gap, the operation processing unit of MCU control circuit adjusts the PWM wave of PWM generation unit output according to temperature gap
Duty ratio, to reduce the voltage of input dipped beam module, the current value for passing through LED reduces by 30%, and being adjusted by PID can be achieved
Non-pole light regulating can not visually discover brightness and significantly change.
Specifically, starting to control when radiator temperature is greater than 90 DEG C, when radiator temperature is greater than 125 DEG C, general power is reduced
30%.
Whether 3-5 distance light switching is occurred in S22, detection system 1-3s, if so, step S23 is executed, by the dipped beam mould
Block is switched to city traffic driving mode；It is no to then follow the steps S24.
In the present embodiment, the illumination of city traffic driving mode is 80-90Lx, colour temperature 5600K.
S24 keeps conventional operating mode.
The illumination of Conventional brightness mode is 110-120Lx, colour temperature 6100K.
After the operating mode of dipped beam module is switched to city traffic driving mode, S22 is executed, whether is occurred in detection system 1-3s
3-5 distance light switching, if so, executing step S24.
In dipped beam brightness switch unit, when the operating mode of the dipped beam module is in city traffic driving mode, if inspection
It measures and 3-5 distance light switching has occurred in system 1-3s, then the operating mode of the dipped beam module is switched to routine work mould
Formula then continues to keep city traffic driving mode if not having.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (7)
1. a kind of control method of car headlamp, comprising the following steps:
Whether system voltage is still in low-pressure state after detection system powers on 5-10s, if so, starting low current protection mode；
The low current protection mode includes: to be adjusted by PWM to reduce the electric current of dipped beam module 50%.
2. control method according to claim 1, which is characterized in that further comprising the steps of:
Whether the temperature of detection light source module is greater than preset first temperature threshold, if so, starting blower PID adjustment mechanism is to adjust
Whole rotation speed of fan.
3. method according to claim 1 or 2, which is characterized in that further comprising the steps of:
Whether the temperature for detecting the light source module is more than preset second temperature threshold value, if so, starting light source PID adjustment mechanism
To reduce the electric current of the dipped beam module 30%.
4. method according to claim 1 or 2, which is characterized in that further comprise the steps of:
Whether the temperature for detecting the power module is greater than preset third temperature threshold, if so, starting light source PID adjustment mechanism
To reduce the electric current of the dipped beam module 30%.
5. method as claimed in claim 3, which is characterized in that first temperature threshold is 65 DEG C -70 DEG C；Or, described
Two temperature thresholds are 105 DEG C -115 DEG C；Or, the third temperature threshold is 100 DEG C -110 DEG C.
6. method according to claim 1 or 2, which is characterized in that further comprise the steps of:
Whether 3-5 distance light switching is occurred in detection system 1-3s, if so, the dipped beam module is switched to city traffic driving mould
Formula；Otherwise conventional operating mode is kept；
Wherein, the illumination of the city traffic driving mode is 80-90Lx, colour temperature 5500-5650K；The illumination of Conventional brightness mode is
110-120Lx, colour temperature 6000-6150K.
7. according to the method described in claim 6, it is characterized in that, the operating mode of the dipped beam module is switched to city traffic driving
After mode, further comprise the steps of:
Whether 3-5 distance light switching is occurred in detection system 1-3s, if so, the operating mode of the dipped beam module is switched to often
Advise operating mode；Otherwise city traffic driving mode is kept.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910654470.2A CN110371015A (en) | 2019-07-19 | 2019-07-19 | A kind of control method of car headlamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910654470.2A CN110371015A (en) | 2019-07-19 | 2019-07-19 | A kind of control method of car headlamp |
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| CN201910654470.2A Pending CN110371015A (en) | 2019-07-19 | 2019-07-19 | A kind of control method of car headlamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110803105A (en) * | 2019-11-15 | 2020-02-18 | 北京海纳川汽车部件股份有限公司 | Control method and device for automobile lamp and automobile |
| CN113386656A (en) * | 2021-07-23 | 2021-09-14 | 中山易事达光电科技有限公司 | Intelligent control car lamp system and control method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM316977U (en) * | 2007-01-31 | 2007-08-11 | Transmint Prec S Co Ltd | Auto switching system for far and near lighting |
| CN201700056U (en) * | 2010-06-11 | 2011-01-05 | 东风汽车有限公司 | Electrically-adjusted headlamp control device |
| CN202092083U (en) * | 2011-07-28 | 2011-12-28 | 惠州比亚迪实业有限公司 | LED headlight control circuit |
| CN103342108A (en) * | 2013-07-22 | 2013-10-09 | 奇瑞汽车股份有限公司 | Headlight drive circuit |
| CN103552502A (en) * | 2013-11-08 | 2014-02-05 | 高云峰 | Automobile lamp and intelligent control device for automobile lamp |
| CN103697389A (en) * | 2013-12-29 | 2014-04-02 | 哈尔滨固泰电子有限责任公司 | Variable-color-temperature automobile lamp |
| CN105270407A (en) * | 2015-10-20 | 2016-01-27 | 广州橙行智动汽车科技有限公司 | Driving mode switching method and system for automatic driving automobile |
| CN108668406A (en) * | 2017-03-28 | 2018-10-16 | 松下知识产权经营株式会社 | Power supply, lamp device, front lamp device and vehicle |
| CN109353269A (en) * | 2018-11-15 | 2019-02-19 | 复旦大学 | A driving control system for driverless cars with variable headlamps |
-
2019
- 2019-07-19 CN CN201910654470.2A patent/CN110371015A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM316977U (en) * | 2007-01-31 | 2007-08-11 | Transmint Prec S Co Ltd | Auto switching system for far and near lighting |
| CN201700056U (en) * | 2010-06-11 | 2011-01-05 | 东风汽车有限公司 | Electrically-adjusted headlamp control device |
| CN202092083U (en) * | 2011-07-28 | 2011-12-28 | 惠州比亚迪实业有限公司 | LED headlight control circuit |
| CN103342108A (en) * | 2013-07-22 | 2013-10-09 | 奇瑞汽车股份有限公司 | Headlight drive circuit |
| CN103552502A (en) * | 2013-11-08 | 2014-02-05 | 高云峰 | Automobile lamp and intelligent control device for automobile lamp |
| CN103697389A (en) * | 2013-12-29 | 2014-04-02 | 哈尔滨固泰电子有限责任公司 | Variable-color-temperature automobile lamp |
| CN105270407A (en) * | 2015-10-20 | 2016-01-27 | 广州橙行智动汽车科技有限公司 | Driving mode switching method and system for automatic driving automobile |
| CN108668406A (en) * | 2017-03-28 | 2018-10-16 | 松下知识产权经营株式会社 | Power supply, lamp device, front lamp device and vehicle |
| CN109353269A (en) * | 2018-11-15 | 2019-02-19 | 复旦大学 | A driving control system for driverless cars with variable headlamps |
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| CN110803105A (en) * | 2019-11-15 | 2020-02-18 | 北京海纳川汽车部件股份有限公司 | Control method and device for automobile lamp and automobile |
| CN110803105B (en) * | 2019-11-15 | 2021-06-01 | 北京海纳川汽车部件股份有限公司 | Control method and device for automobile lamp and automobile |
| CN113386656A (en) * | 2021-07-23 | 2021-09-14 | 中山易事达光电科技有限公司 | Intelligent control car lamp system and control method thereof |
| CN113386656B (en) * | 2021-07-23 | 2022-10-14 | 中山易事达光电科技有限公司 | Intelligent control vehicle lamp system and control method thereof |
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Application publication date: 20191025 |