CN206243017U - A kind of automotive LED headlamp module - Google Patents
A kind of automotive LED headlamp module Download PDFInfo
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- CN206243017U CN206243017U CN201621185351.5U CN201621185351U CN206243017U CN 206243017 U CN206243017 U CN 206243017U CN 201621185351 U CN201621185351 U CN 201621185351U CN 206243017 U CN206243017 U CN 206243017U
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Abstract
The utility model is related to vehicle assistant drive technical field, a kind of especially automotive LED headlamp module, automotive LED headlamp module includes matrix L ED modules, information acquisition unit and drive control unit, wherein matrix L ED modules are illuminated for running car, information acquisition unit is used to gather monitoring information, the monitoring information that information acquisition unit will be collected is sent to drive control unit, drive control unit is used to control matrix L ED modules, drive control unit to control matrix L ED modules according to monitoring information.When storage battery is pressed with larger fluctuation in automobile starting and running, boosting rectifier control module can be responded rapidly to and suppress the influence of the voltage pulsation to next stage circuit of battery, ensure the stability of output voltage, constant-current control module can ensure that the operating current of each monomer LED in matrix will not change because of extraneous interference.
Description
Technical field
The utility model is related to vehicle assistant drive technical field, especially a kind of automotive LED headlamp module.
Background technology
With continuing to develop for automotive lighting technology, car headlamp has become the important of automobile appearance individual character and class
Manifestation mode, be also consumer when vehicle is chosen, consider the key factor more paid close attention in traffic safety.Current main flow
Headlamp species has Halogen lamp LED, xenon lamp and LED.Wherein LED headlamps as new force, with many advantages.LED
Energy consumption be only the 1/20 of Halogen lamp LED, service life can reach 6~100,000 hours, overall to support low voltage drive and luminous
Brightness reaction speed high is fast, it is most important that single led small volume, stability is high, can be in limited head lamp structure space
Interior to set up diversified LED matrix, matrix LED headlamp can provide the visual field of clearly being driven a vehicle as daytime at night,
But current matrix LED headlamp causes service life short because curtage is unstable etc., and LED is without effective
Monitoring, cannot effectively protect when overvoltage or overcurrent.
Utility model content
The purpose of this utility model is the defect for overcoming prior art to exist, there is provided a kind of automotive LED headlamp module, is carried
Matrix L ED module service lifes high.
In order to realize the purpose of this utility model, the technical scheme for being used is：
Automotive LED headlamp module of the present utility model includes：
Matrix L ED modules, for running car illumination；
Information acquisition unit, for gathering monitoring information, the monitoring information that described information collecting unit will be collected sends
To drive control unit；
Drive control unit, for controlling the matrix L ED modules, the drive control unit is according to monitoring information control
The matrix L ED modules, the drive control unit includes driving module and control module；
Wherein, the driving module includes that anti-reverse protection module, boosting rectifier control module, constant-current control module and constant pressure are defeated
Go out module, one end connection power supply of the anti-reverse protection module, the anti-reverse protection module is used for drive control unit
Back-end circuit is protected, and the other end of the anti-reverse protection module is electrically connected with one end of the boosting rectifier control module,
The rated voltage that the boosting rectifier control module is used for needed for supply voltage is promoted into the driving matrix L ED modules, the liter
The other end of control module is pressed to be electrically connected with the constant-current control module, the constant-current control module is used as boosting rectifier control module
Rear class power circuit, the constant-current control module is used for rated current described in output driving needed for matrix L ED modules, described
Constant pressure output module is electrically connected with the anti-reverse protection module, and the constant pressure output module is used to be provided to the control module
Constant voltage source；
Wherein, the control module includes microcontroller and matrix L ED control managers, and the microcontroller receives described
The data message of information acquisition unit, the microcontroller is parsed to data message and message commands is sent into the matrix
LED controls manager, the matrix L ED controls manager to produce the control signal of multichannel distinct pulse widths in matrix L ED modules
Each monomer LED is controlled management.
Information acquisition unit described in the utility model include image capture module, height sensor, deflection angle sensor,
Rotation direction sensor, LED temperature sensor and LED light flux detection module, described image acquisition module by CAN with
The micro-controller communications, the height sensor, deflection angle sensor, rotation direction sensor, LED temperature sensor and LED
Luminous flux detection module is connected with the microcontroller respectively.
Image capture module described in the utility model is arranged on vehicle window rearview mirror top, and described image acquisition module is used to adopt
Collect real-time information of road surface, the height sensor is arranged on vehicle body, the height sensor is used to detect body sway amount, institute
State LED temperature sensor and LED light flux detection module is arranged on the matrix L ED modules, the LED temperature sensor is used
Temperature variation in the matrix L ED die set light source courses of work are detected, the LED light flux detection module is used to measure light source
Radiating visible light total amount, the deflection angle sensor is used to provide steering wheel angular signal, and the rotation direction sensor is used to carry
For steering indicating light logical signal.
Matrix L ED modules described in the utility model include dipped beam module, distance light module and corner lamp module, the microcontroller
The body sway amount measured according to height sensor controls the irradiating angle of the dipped beam module, and the microcontroller is according to image
The real-time information of road surface of acquisition module pickup formulates the control strategy of the distance light module and is sent to the matrix L ED control pipes
Reason device, the microcontroller controls the corner lamp module according to the feedback signal of deflection angle sensor and/or rotation direction sensor
Illumination, temperature simulation voltage signal and LED light flux detection module of the microcontroller according to LED temperature sensor feedback
The working condition of the luminous flux analog voltage signal real-time detection matrix L ED modules of feedback.
The beneficial effect of automotive LED headlamp module of the present utility model is：
1) it is of the present utility model driving module include anti-reverse protection module, boosting rectifier control module, constant-current control module and
Constant pressure output module, can effectively control the output voltage and electric current of drive control unit, when in automobile starting and running
When storage battery is pressed with larger fluctuation, boosting rectifier control module can be responded rapidly to and suppress the voltage pulsation of battery to next stage
The influence of circuit, it is ensured that the stability of output voltage, constant-current control module can ensure the work electricity of each monomer LED in matrix
Stream will not change because of extraneous interference；
2) temperature simulation voltage signal and LED light of the microcontroller of the present utility model according to LED temperature sensor feedback
The working condition of the luminous flux analog voltage signal real-time detection matrix L ED modules of flux detection module feedback, it is over-pressed when occurring
Or during overcurrent, matrix L ED control managers produce the control signal of multichannel distinct pulse widths to each monomer in matrix L ED modules
LED is controlled management.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the theory diagram of the automotive LED headlamp module of the present embodiment.
Wherein：Anti-reverse protection module 1, boosting rectifier control module 2 and constant pressure output module 3, constant-current control module 4, matrix
LED controls manager 5, microcontroller 6, CAN 7, dipped beam module 9, distance light module 10, corner lamp module 11.
Specific embodiment
In description of the present utility model, it is to be understood that term " radial direction ", " axial direction ", " on ", D score, " top ",
The orientation or position relationship of the instruction such as " bottom ", " interior ", " outward " are based on orientation shown in the drawings or position relationship, merely to just
Described with simplified in description the utility model, must be with specific side rather than the device or element for indicating or imply meaning
Position, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In description of the present utility model
In, unless otherwise indicated, " multiple " is meant that two or more.
, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model
Dress ", " setting ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or integrally connect
Connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary.For the ordinary skill in the art, may be used
To understand concrete meaning of the above-mentioned term in the utility model as the case may be.
As shown in figure 1, the automotive LED headlamp module of the present embodiment includes matrix L ED modules, information acquisition unit and drive
Dynamic control unit, wherein matrix L ED modules are illuminated for running car, and information acquisition unit is used to gather monitoring information, information
The monitoring information that collecting unit will be collected is sent to drive control unit, and drive control unit is used to control matrix L ED modules,
Drive control unit controls matrix L ED modules according to monitoring information.
The drive control unit of the present embodiment includes driving module and control module, drives module to include anti-reverse protection mould
Block 1, boosting rectifier control module 2, constant-current control module 4 and constant pressure output module 3, wherein anti-reverse protection module 1 is model
SQD50P06-15L based on prestige generation P-channel MOSFET, boosting rectifier control module 2 is the boosting based on Texas Instrument's LM5022 chips
Output 40V, constant-current control module 4 is based on Texas Instrument's LM3409 chips, constant current output 1A to matrix L ED modules.Specifically,
One end connection power supply of anti-reverse protection module 1, anti-reverse protection module 1 is used to protect drive control unit back-end circuit
Shield, when there is revers voltage to be input into, anti-reverse protection module 1 can be protected to drive control unit back-end circuit, effectively
Circuit system is prevented to be subject to expendable damage.The other end of anti-reverse protection module 1 and one end of boosting rectifier control module 2
Electrical connection, the rated voltage that boosting rectifier control module 2 is used for needed for supply voltage is promoted into driving matrix L ED modules, this implementation
Rated voltage 40V needed for Vehicular accumulator cell voltage increase to driving headlamp can be worked as vapour by the boosting rectifier control module 2 in example
When storage battery is pressed with larger fluctuation in car startup and running, boosting rectifier control module 2 can be responded rapidly to and suppress electric power storage
Influence of the voltage pulsation in pond to next stage circuit, it is ensured that the stability of output voltage.The other end of boosting rectifier control module 2 with
Constant-current control module 4 is electrically connected, constant-current control module 4 as boosting rectifier control module 2 rear class power circuit, constant-current control module
4 for the rated current needed for output driving matrix L ED modules, the output driving matrix L ED of constant-current control module 4 of the present embodiment
Rated current 1A needed for module, it is ensured that the operating current of each monomer LED will not occur because of extraneous interference in matrix
Change.Constant pressure output module 3 is electrically connected with anti-reverse protection module 1, and constant pressure output module 3 is used to provide constant pressure to control module
Power supply, output voltage is 5V.
The control module of the present embodiment includes microcontroller 6 and matrix L ED control managers 5, matrix L ED control managers
5 is that, based on Texas Instrument's TPS96221 chips, microcontroller 6 is based on Freescale S9S 12G192VLF chips.
The data message of the receive information collecting unit of microcontroller 6, microcontroller 6 is parsed to data message and will report
Text order is sent to matrix L ED control managers 5, and matrix L ED control managers 5 produce the control signal of multichannel distinct pulse widths to square
Each monomer LED is controlled management in matrix LED module, specifically, when microcontroller 6 is according to monitoring information judgment matrix LED
There is overvoltage or overcurrent in module, and microcontroller 6 sends control command and controls manager 5, matrix L ED control pipes to matrix L ED
Reason device 5 can simulate pwm signals in the square wave of certain frequency by embedded software, adjust high level and low level duty
Than, you can realize the control of each monomer LED, matrix L ED control managers 5 carry out open-circuit-protection, short to each monomer LED
The entire compensation of road fault diagnosis and luminous flux.
The information acquisition unit of the present embodiment includes image capture module, height sensor, deflection angle sensor, steering
Sensor, LED temperature sensor and LED light flux detection module, wherein, LED light flux detection module is tested by force for LED light
Instrument, image capture module can use general vehicle-mounted camera, deflection angle sensor, rotation direction sensor and LED temperature to pass
Sensor etc. is general automobile sensor, can directly from market purchasing, image capture module by CAN 7 with it is micro-
Controller 6 communicates, the detection of height sensor, deflection angle sensor, rotation direction sensor, LED temperature sensor and LED light flux
Module is connected with microcontroller 6 respectively.
Wherein, image capture module is arranged on vehicle window rearview mirror top, and image capture module is used to gather real-time road surface letter
Breath, height sensor is arranged on vehicle body, and height sensor is used to detect body sway amount that LED temperature sensor and LED light to be logical
Amount detection module is arranged on matrix L ED modules, during LED temperature sensor is used to detect the matrix L ED die set light source courses of work
Temperature variation, LED light flux detection module is used to measure radiation of light source visible ray total amount, and microcontroller 6 is according to receiving
Temperature information and luminous flux information judgment matrix LED modules whether there is overvoltage or overcurrent because in the matrix L ED modules
Certain monomer LED overvoltages or during overcurrent the brightness simultaneously that can increase severely of the caloric value of LED greatly improve, when caloric value or luminous flux are super
The judgment matrix LED module overcurrent of microcontroller 6 when crossing certain threshold value, deflection angle sensor is used to provide steering wheel angle letter
Number, rotation direction sensor is used to provide steering indicating light logical signal.
The matrix L ED modules of the present embodiment include dipped beam module 9, distance light module 10 and corner lamp module 11, dipped beam module 9,
Distance light module 10 and corner lamp module 11 are three separate modules, and wherein dipped beam module 9 has free regulating irradiation angle
Structure, the irradiating angle of dipped beam module 9 automatically adjusts operation principle and system and constitutes and can be found in paper " a kind of car headlamp is automatic
Height regulation and control system is designed ", the microcontroller 6 of the present embodiment is near according to the body sway amount control that height sensor is measured
The irradiating angle of light module 9, realize automatic adjustment height light modulation function, it is preferred that the irradiation angle range of dipped beam module 9 be 1~
5 ° of intervals.
The distance light module 10 of the present embodiment includes 9 LEDs, can produce 9 kinds of light type, left and right bilateral LED distance light modules
10 can combine the different dark spaces of 25 kinds of generation.The real-time information of road surface that microcontroller 6 is picked up according to image capture module formulates remote
The control strategy of light module 10 is simultaneously sent to matrix L ED control managers 5, and matrix L ED control managers 5 can be by built-in soft
Part simulates pwm signals in the square wave of certain frequency, adjusts high level and low level dutycycle so that distance light module 10 is produced
Different dark spaces or clear zone, specifically, 9 LEDs of distance light module 10 are evenly arranged in matrix form, matrix L ED control management
LED and brightness that device 5 determines to need to light according to control strategy, the light intensity of dark space are protected between 30lux-40lux
Card will not produce dazzle, the light intensity in clear zone between 50lux-60lux and irradiating angle and dipped beam module 9 irradiating angle
Identical, the enhancing visual field avoids interference driving vehicle simultaneously.Specifically, drive control unit control matrix L ED when to meeting
Module produces the dark space of the covering meeting profile moved with car to avoid meeting dazzle, the drive control unit when front truck in the same direction is run into
Control matrix L ED modules produce the dark space of covering front truck profile to avoid front truck rear view mirror glare with distance, occur when simultaneously
When meeting and front truck, drive control unit controls matrix L ED modules to produce the clear zone enhancing visual field in two the middle of independent dark space.
The microcontroller 6 of the present embodiment is according to deflection angle sensor and/or the feedback signal pilot angle of rotation direction sensor
The illumination of lamp module 11, the temperature simulation electricity that microcontroller 6 feeds back according to LED temperature sensor and LED light flux detection module
The working condition of pressure signal and luminous flux analog voltage signal real-time detection matrix L ED modules, microcontroller 6 passes through matrix L ED
Control manager 5 carries out the entire compensation of open-circuit-protection, short trouble diagnosis and luminous flux to each monomer LED.
The microcontroller 6 of the present embodiment carries out information exchange by CAN communication module and image capture module, while receiving
Height sensor signal, the steering wheel angle signal of deflection angle sensor, the steering indicating light logical signal of rotation direction sensor, LED
Temperature signal and LED light flux signal, after all information integrations are processed, dipped beam module are controlled by matrix L ED management modules
9th, distance light module 10 and corner lamp module 11 realize corresponding automatic adjustment height light modulation, self adaptation distance light and follow-up steering floor light
Three zones, are effectively improved vehicle all-weather driving lighting environment, improve the overall security for driving.
When speed is less than 60km/h and is more than 10km/h, steering indicating light logic of the drive control unit according to rotation direction sensor
The angular signal of signal and deflection angle sensor automatically turns on the corner lamp module 11 of correspondence direction.The follow-up steering floor light
Pattern can combine turning crossing real-time road, steering wheel deflection angle and the steering indicating light letter that external image acquisition module is picked up
The information of numbers three aspects, the corner lamp for automatically turning on correspondence direction carries out follow-up steering illumination, while the specific light of corner lamp module 11
Flux can also according to driving actual conditions and Intelligent adjustment, to provide 38 ° of floor light scope, stand driver
Find the driving conditions near curved areas.
When speed is less than 5km/h, the body sway amount that drive control unit is provided by height sensor signal 1~
The irradiating angle of regulation dipped beam module 9 in 5 ° of interval ranges, to obtain optimal illumination region.
It should be appreciated that specific embodiment described above is only used for explaining the utility model, it is not used to limit this reality
With new.The obvious change or variation extended out by spirit of the present utility model are still in protection of the present utility model
Among scope.
Claims (4)
1. a kind of automotive LED headlamp module, it is characterised in that：The headlamp module includes：
Matrix L ED modules, for running car illumination；
Information acquisition unit, for gathering monitoring information, the monitoring information that described information collecting unit will be collected is sent to drive
Dynamic control unit；
Drive control unit, for controlling the matrix L ED modules, the drive control unit is according to monitoring information is controlled
Matrix L ED modules, the drive control unit includes driving module and control module；
Wherein, it is described driving module include anti-reverse protection module (1), boosting rectifier control module (2), constant-current control module (4) and
Constant pressure output module (3), one end connection power supply of the anti-reverse protection module (1), the anti-reverse protection module (1) is used for
Drive control unit back-end circuit is protected, the other end and the boosting rectifier control of the anti-reverse protection module (1)
One end electrical connection of module (2), the boosting rectifier control module (2) by supply voltage for being promoted to the driving matrix L ED moulds
Rated voltage needed for group, the other end of the boosting rectifier control module (2) is electrically connected with the constant-current control module (4), institute
Rear class power circuit of the constant-current control module (4) as boosting rectifier control module (2) is stated, the constant-current control module (4) is for defeated
The rated current gone out needed for driving the matrix L ED modules, the constant pressure output module (3) and the anti-reverse protection module
(1) electrically connect, the constant pressure output module (3) to the control module for providing constant voltage source；
Wherein, the control module includes that microcontroller (6) and matrix L ED control manager (5), and the microcontroller (6) connects
The monitoring information of described information collecting unit is received, the microcontroller (6) is parsed to monitoring information and sends out message commands
Manager (5), the matrix L ED is controlled to control manager (5) to produce the control signal of multichannel distinct pulse widths to the matrix L ED
Management is controlled to each monomer LED in matrix L ED modules.
2. automotive LED headlamp module according to claim 1, it is characterised in that：Described information collecting unit includes figure
As the detection of acquisition module, height sensor, deflection angle sensor, rotation direction sensor, LED temperature sensor and LED light flux
Module, described image acquisition module is communicated by CAN (7) with the microcontroller (6), the height sensor,
Deflection angle sensor, rotation direction sensor, LED temperature sensor and LED light flux detection module respectively with the microcontroller
(6) it is connected.
3. automotive LED headlamp module according to claim 2, it is characterised in that：Described image acquisition module is arranged on
Vehicle window rearview mirror top, described image acquisition module is used to gather real-time information of road surface, and the height sensor is arranged on vehicle body
On, the height sensor is used to detect body sway amount that the LED temperature sensor and LED light flux detection module to be set
On the matrix L ED modules, the LED temperature sensor is used to detect the temperature in the matrix L ED die set light source courses of work
Variable quantity, the LED light flux detection module is used to measure radiation of light source visible ray total amount, and the deflection angle sensor is used for
Steering wheel angular signal is provided, the rotation direction sensor is used to provide steering indicating light logical signal.
4. automotive LED headlamp module according to claim 3, it is characterised in that：The matrix L ED modules include dipped beam
Module (9), distance light module (10) and corner lamp module (11), the vehicle body that the microcontroller (6) measures according to height sensor incline
Gradient controls the irradiating angle of the dipped beam module (9), the real-time road that the microcontroller (6) is picked up according to image capture module
Face information formulates the control strategy of the distance light module (10) and is sent to the matrix L ED and controls manager (5), the micro-control
Device (6) processed controls the illumination of the corner lamp module (11) according to the feedback signal of deflection angle sensor and/or rotation direction sensor,
The microcontroller (6) is fed back according to the temperature simulation voltage signal and LED light flux detection module of LED temperature sensor feedback
Luminous flux analog voltage signal real-time detection matrix L ED modules working condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621185351.5U CN206243017U (en) | 2016-11-04 | 2016-11-04 | A kind of automotive LED headlamp module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621185351.5U CN206243017U (en) | 2016-11-04 | 2016-11-04 | A kind of automotive LED headlamp module |
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| CN206243017U true CN206243017U (en) | 2017-06-13 |
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| CN201621185351.5U Active CN206243017U (en) | 2016-11-04 | 2016-11-04 | A kind of automotive LED headlamp module |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107493622A (en) * | 2017-07-04 | 2017-12-19 | 上海小糸车灯有限公司 | Matrix LED driving control system and control method for automobile lamp |
| TWI628977B (en) * | 2017-09-22 | 2018-07-01 | 咸瑞科技股份有限公司 | Light source adjusting system capable of automatically adjusting brightness of light source and adjusting method thereof |
| CN108569211A (en) * | 2017-06-22 | 2018-09-25 | 常州星宇车灯股份有限公司 | A kind of control system and its control method of LED headlamps |
| CN108801605A (en) * | 2018-07-27 | 2018-11-13 | 惠州市德赛西威汽车电子股份有限公司 | A kind of device and method of vehicle intelligent light detection |
| CN110329076A (en) * | 2019-08-08 | 2019-10-15 | 河南职业技术学院 | A kind of hybrid power engineering machinery vehicle controlling electric energy method and system |
-
2016
- 2016-11-04 CN CN201621185351.5U patent/CN206243017U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108569211A (en) * | 2017-06-22 | 2018-09-25 | 常州星宇车灯股份有限公司 | A kind of control system and its control method of LED headlamps |
| CN108569211B (en) * | 2017-06-22 | 2024-03-26 | 常州星宇车灯股份有限公司 | Control system and control method of LED headlamp |
| CN107493622A (en) * | 2017-07-04 | 2017-12-19 | 上海小糸车灯有限公司 | Matrix LED driving control system and control method for automobile lamp |
| TWI628977B (en) * | 2017-09-22 | 2018-07-01 | 咸瑞科技股份有限公司 | Light source adjusting system capable of automatically adjusting brightness of light source and adjusting method thereof |
| CN108801605A (en) * | 2018-07-27 | 2018-11-13 | 惠州市德赛西威汽车电子股份有限公司 | A kind of device and method of vehicle intelligent light detection |
| CN110329076A (en) * | 2019-08-08 | 2019-10-15 | 河南职业技术学院 | A kind of hybrid power engineering machinery vehicle controlling electric energy method and system |
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