CN108016348B - LED automobile headlamp module and control method thereof - Google Patents
LED automobile headlamp module and control method thereof Download PDFInfo
- Publication number
- CN108016348B CN108016348B CN201610960968.8A CN201610960968A CN108016348B CN 108016348 B CN108016348 B CN 108016348B CN 201610960968 A CN201610960968 A CN 201610960968A CN 108016348 B CN108016348 B CN 108016348B
- Authority
- CN
- China
- Prior art keywords
- module
- led
- control
- vehicle
- matrix led
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
- B60Q1/1415—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
-
- 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
- B60Q1/10—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 due to vehicle inclination, e.g. due to load distribution
- B60Q1/115—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 due to vehicle inclination, e.g. due to load distribution by electric means
-
- 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
- B60Q1/12—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 due to steering position
- B60Q1/122—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 due to steering position with electrical actuating means
-
- 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
- B60Q1/16—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 illuminating the way asymmetrically
-
- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention relates to the technical field of vehicle auxiliary driving, in particular to an LED (light emitting diode) automobile headlamp module and a control method thereof. The LED automobile headlamp module has a self-adaptive intelligent high-beam control mode, high-beam and low-beam can be automatically switched in the mode, a dark zone can be formed when the high beam is switched on, the high beam is prevented from dazzling, the interference of high-beam abuse on driving is effectively prevented, and potential safety hazards caused by the high-beam abuse are avoided.
Description
Technical Field
The invention relates to the technical field of vehicle auxiliary driving, in particular to an LED automobile headlamp module.
Background
With the continuous development of automobile lighting technology, automobile headlamps have become an important expression mode of automobile appearance personality and grade, and are also a key factor for consumers to pay more attention to driving safety when selecting and purchasing automobile types. The mainstream front lamps at present comprise halogen lamps, xenon lamps and LED lamps. Wherein the LED head-light is as new born strength, has many advantages, the energy consumption of LED lamp is only 1/20 of halogen lamp, life can reach 6 ~ 10 ten thousand hours, wholly support the low voltage drive, and luminous luminance is high reaction rate fast, single LED is small, stability is high, can build diversified LED matrix in limited head-light structure space, present matrix LED head-light can provide the driving field of vision like being clear daytime at night, but matrix LED head-light still has some problems when using: 1. high-brightness lamplight in a high beam mode can affect an opposite coming vehicle or a front vehicle, so that dazzling is caused, and potential safety hazards of driving are brought; 2. the lighting area is insufficient in the complex environment, and the driving safety is difficult to guarantee.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an LED automobile headlamp module and a control method thereof, which can avoid the potential safety hazard of driving caused by abuse of high beams.
In order to realize the purpose of the invention, the adopted technical scheme is as follows:
the LED automobile headlamp module comprises:
the matrix LED module is used for automobile running illumination;
the information acquisition unit is used for acquiring real-time pavement information and sending the acquired real-time pavement information to the drive control unit;
the drive control unit is used for controlling the matrix LED module, the drive control unit controls the matrix LED module according to real-time pavement information, when opposite direction meeting, the drive control unit control matrix LED module generates the dark space that covers the profile of meeting of following the car and avoids the glare of meeting the car, when meetting the same direction front car, the drive control unit control matrix LED module generates the dark space that covers the profile of meeting the car along with the distance and avoids the glare of front car rear-view mirror, when meeting the car and the front car simultaneously, the drive control unit control matrix LED module produces the bright area in the middle of two independent dark spaces and strengthens the field of vision.
The drive control unit comprises a drive module and a control module, wherein the drive module comprises an anti-reverse-connection protection module, a boost control module, a constant current control module and a constant voltage output module, one end of the anti-reverse-connection protection module is connected with a power supply, the anti-reverse-connection protection module is used for protecting a rear end circuit of the drive control unit, the other end of the anti-reverse-connection protection module is electrically connected with one end of the boost control module, the boost control module is used for boosting a power supply voltage to a rated voltage required for driving the matrix LED module, the other end of the boost control module is electrically connected with the constant current control module, the constant current control module is used as a rear-stage power supply circuit of the boost control module, the constant current control module is used for outputting a rated current required for driving the matrix LED module, the constant voltage output module is electrically connected with the anti-reverse-connection protection module, and the constant voltage output module is used for providing a constant voltage power supply for the control module.
The control module comprises a microcontroller and a matrix LED control manager, wherein the microcontroller receives data information of the information acquisition unit, analyzes the data information and sends a message command to the matrix LED control manager, and the matrix LED control manager generates a plurality of paths of control signals with different pulse widths to control and manage each single LED in the matrix LED module.
The information acquisition unit comprises an image acquisition module, a height sensor, a deflection angle sensor, a steering sensor, an LED temperature sensor and an LED luminous flux detection module, wherein the image acquisition module is communicated with a microcontroller through a CAN communication module, and the height sensor, the deflection angle sensor, the steering sensor, the LED temperature sensor and the LED luminous flux detection module are respectively connected with the microcontroller.
The automobile steering angle detection device is characterized in that the image acquisition module is arranged above an automobile window rearview mirror and used for acquiring real-time road surface information, the height sensor is arranged on an automobile body and used for detecting the inclination of the automobile body, the LED temperature sensor and the LED luminous flux detection module are arranged on the matrix LED module, the LED temperature sensor is used for detecting the temperature variation of the matrix LED module in the working process of a light source, the LED luminous flux detection module is used for measuring the total amount of visible light radiated by the light source, the deflection angle sensor is used for providing a steering wheel corner signal, and the steering sensor is used for providing a steering lamp logic signal.
The matrix LED module comprises a dipped beam module, a high beam module and an angle lamp module, wherein a microcontroller controls the irradiation angle of the dipped beam module according to the vehicle body inclination measured by a height sensor, the microcontroller formulates a control strategy of the high beam module according to real-time road surface information picked up by an image acquisition module and sends the control strategy to a matrix LED control manager, the microcontroller controls the illumination of the angle lamp module according to feedback signals of a deflection angle sensor and/or a steering sensor, the microcontroller detects the working state of the matrix LED module in real time according to a temperature analog voltage signal fed back by an LED temperature sensor and a luminous flux analog voltage signal fed back by an LED luminous flux detection module, and the microcontroller performs open-circuit protection, short-circuit fault diagnosis and integral compensation of luminous flux on each single LED through the matrix LED control manager.
The invention also provides a control method of the LED automobile headlamp module, and the LED automobile headlamp module is used and comprises the following steps:
step 101: when a user selects a headlamp to control an AUTO gear, the intensity of ambient light is less than 30lux and the vehicle speed is greater than 60km/h, the system enters a self-adaptive intelligent remote control mode, and when the ambient illumination is greater than 50lux and the vehicle speed is less than 50km/h, the system is automatically switched to a low beam module for illumination;
step 102: under the self-adaptive intelligent remote control mode, when meeting an opposite meeting within 400 meters in front, the driving control unit controls the matrix LED module to generate a dark space which moves along with a vehicle and covers a meeting outline so as to avoid meeting glare; when a vehicle runs forwards within 200 meters ahead simultaneously, the driving control unit controls the matrix LED module to generate a dark area covering the outline of the front vehicle along with the distance so as to avoid glare of a rearview mirror of the front vehicle, and when a vehicle meeting and the front vehicle simultaneously occur, the driving control unit controls the matrix LED module to generate a bright area between two independent dark areas so as to enhance the visual field;
step 103: under the intelligent high beam control mode of self-adaptation, when the vehicle distance is close to, automatic switch becomes the illumination of passing light module, and when the place ahead does not have the vehicle, automatic recovery is the illumination of high beam module.
The invention automatically restores to the self-adaptive intelligent remote control mode 2 seconds after the manual forced remote control operation is finished.
When the vehicle speed is less than 60km/h and more than 10km/h, the driving control unit automatically turns on the corner lamp module in the corresponding direction according to the steering lamp logic signal of the steering sensor and the corner signal of the deflection angle sensor.
When the vehicle speed is lower than 5km/h, the driving control unit adjusts the irradiation angle of the low beam module within the range of 1-5 degrees through the vehicle body inclination amount provided by the height sensor signal.
The LED automobile headlamp module and the control method thereof have the beneficial effects that:
1) The LED automobile headlamp module has a self-adaptive intelligent far-light control mode, and can automatically switch between far light and near light, form a dark zone when the far light is turned on to prevent the far light from dazzling, avoid potential safety hazards caused by abuse of the far light, and effectively prevent high-brightness lamplight from influencing an opposite coming vehicle or a front vehicle so as to improve the driving safety in a complex environment;
2) The microcontroller carries out information interaction with the image acquisition module through the CAN communication module, simultaneously receives signals of the height sensor, steering wheel corner signals of the deflection angle sensor, steering lamp logic signals of the steering sensor, LED temperature signals and LED luminous flux signals, integrates and processes all information, and controls the dipped beam module, the high beam module and the corner lamp module through the matrix LED management module to realize three functions of corresponding automatic height adjustment and light adjustment, self-adaptive high beam and follow-up steering auxiliary lighting, thereby effectively improving the all-weather driving lighting environment of the vehicle and improving the safety of integral driving;
3) The driving control unit can quickly analyze corresponding input information and judge the state of the current headlamp, accurately controls the luminous brightness of a single LED lamp in the matrix LED module, and realizes the quick, variable and intelligent illumination capability on the area in front of the vehicle.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic block diagram of an LED automotive headlamp module according to the present embodiment.
Wherein: the device comprises an anti-reverse connection protection module 1, a boost control module 2, a constant voltage output module 3, a constant current control module 4, a matrix LED control manager 5, a microcontroller 6, a CAN communication module 7, a low beam module 9, a high beam module 10 and an angle lamp module 11.
Detailed Description
In the description of the present invention, it is to be understood that the terms "radial," "axial," "upper," "lower," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, the LED automotive headlamp module of the present embodiment includes a matrix LED module, an information collecting unit, and a driving control unit, wherein the matrix LED module is used for illuminating when an automobile is running, the information collecting unit is used for collecting real-time road information, the information collecting unit sends the collected real-time road information to the driving control unit, the driving control unit is used for controlling the matrix LED module, and the driving control unit controls the matrix LED module according to the real-time road information.
In order to prevent the interference caused by the abuse of the high beam and avoid the potential safety hazard caused by the abuse of the high beam, the driving control unit of the embodiment formulates a control strategy of the matrix LED module according to the real-time road information, specifically, when opposite direction meeting is carried out, the driving control unit controls the matrix LED module to generate a dark space which moves along with the vehicle and covers the outline of the meeting vehicle so as to avoid the glare of the meeting vehicle, when the opposite direction meeting is carried out, the driving control unit controls the matrix LED module to generate the dark space which covers the outline of the front vehicle along with the distance so as to avoid the glare of the rearview mirror of the front vehicle, and when the meeting and the front vehicle occur simultaneously, the driving control unit controls the matrix LED module to generate a bright area between two independent dark spaces so as to enhance the visual field.
The driving control unit of the embodiment comprises a driving module and a control module, wherein the driving module comprises an anti-reverse-connection protection module 1, a boost control module 2, a constant current control module 4 and a constant voltage output module 3, the anti-reverse-connection protection module 1 is a Wilshi P channel-based MOSFET with the model of SQD50P06-15L, the boost control module 2 is a Texas instrument LM5022 chip, the boost output is 40V, the constant current control module 4 is a Texas instrument LM3409 chip, and the constant current output is 1A to the matrix LED module. Specifically, one end of the reverse connection prevention protection module 1 is connected with the power supply, the reverse connection prevention protection module 1 is used for protecting the rear end circuit of the drive control unit, when reverse voltage is input, the reverse connection prevention protection module 1 can protect the rear end circuit of the drive control unit, and the system circuit is effectively prevented from being damaged unrecoverable. The other end of the reverse connection prevention protection module 1 is electrically connected with one end of the boost control module 2, the boost control module 2 is used for boosting the power supply voltage to the rated voltage required by the driving matrix LED module, the boost control module 2 in the embodiment can boost the voltage of the vehicle-mounted storage battery to the rated voltage 40V required by the driving headlamp, and when the voltage of the storage battery fluctuates greatly in the starting and running processes of the automobile, the boost control module 2 can quickly respond and inhibit the influence of the voltage fluctuation of the storage battery on the next-stage circuit, so that the stability of the output voltage is ensured. The other end of the boost control module 2 is electrically connected with the constant current control module 4, the constant current control module 4 is used as a rear power circuit of the boost control module 2, the constant current control module 4 is used for outputting rated current required by the driving matrix LED module, the constant current control module 4 of the embodiment outputs rated current 1A required by the driving matrix LED module, and the working current of each single LED in the matrix is ensured not to change due to external interference. The constant voltage output module 3 is electrically connected with the reverse connection prevention protection module 1, the constant voltage output module 3 is used for providing a constant voltage power supply for the control module, and the output voltage is 5V.
The control module of the present embodiment includes a microcontroller 6 and a matrix LED control manager 5, the matrix LED control manager 5 is based on a texas instruments TPS96221 chip, and the microcontroller 6 is based on a missilcarl S9S12G192VLF chip.
The microcontroller 6 receives the data information of the information acquisition unit, the microcontroller 6 analyzes the data information and sends a message command to the matrix LED control manager 5, and the matrix LED control manager 5 generates a plurality of paths of control signals with different pulse widths to control and manage each single LED in the matrix LED module.
The information acquisition unit of this embodiment includes the image acquisition module, height sensor, the deflection angle sensor, turn to the sensor, LED temperature sensor and LED luminous flux detection module, wherein, LED luminous flux detection module is LED light intensity tester, the image acquisition module CAN adopt general on-vehicle camera, the deflection angle sensor, turn to sensor and LED temperature sensor etc. for general vehicle sensor, CAN directly purchase from the market, the image acquisition module passes through CAN communication module 7 and microcontroller 6 communication, height sensor, the deflection angle sensor, turn to the sensor, LED temperature sensor and LED luminous flux detection module link to each other with microcontroller 6 respectively.
The LED matrix light source device comprises an image acquisition module, a height sensor, an LED temperature sensor, an LED luminous flux detection module, a microcontroller 6 and a steering lamp, wherein the image acquisition module is arranged above a window rearview mirror, the image acquisition module is used for acquiring real-time road surface information, the height sensor is arranged on a vehicle body, the height sensor is used for detecting the inclination of the vehicle body, the LED temperature sensor and the LED luminous flux detection module are arranged on the matrix LED module, the LED temperature sensor is used for detecting the temperature variation in the working process of a matrix LED module light source, the LED luminous flux detection module is used for measuring the total amount of light source radiation visible light, the microcontroller 6 judges whether the matrix LED module has overvoltage or overcurrent according to the received temperature information and luminous flux information, because the calorific value of an LED can be increased sharply when a certain single LED in the matrix LED module has overvoltage or overcurrent, the brightness is improved greatly, the microcontroller 6 judges the matrix LED module when the calorific value or the luminous flux exceeds a certain threshold value, the overcurrent deflection angle sensor is used for providing steering wheel corner signals, and the steering lamp logic signals.
The matrix LED module of this embodiment includes a low beam module 9, a high beam module 10 and an angle light module 11, the low beam module 9, the high beam module 10 and the angle light module 11 are three independent modules, wherein the low beam module 9 has a structure capable of freely adjusting an illumination angle, and the working principle and system configuration of the automatic adjustment of the illumination angle of the low beam module 9 can be referred to in the thesis "design of an automatic height adjustment control system for automobile headlamps", the microcontroller 6 of this embodiment controls the illumination angle of the low beam module 9 according to the vehicle body inclination measured by the height sensor, so as to realize the function of automatic height adjustment and light adjustment, preferably, the illumination angle range of the low beam module 9 is 1-5 degrees.
The high beam module 10 of this embodiment includes 9 LED lamps, can produce 9 kinds of light types, and the two side LED high beam module 10 can make up and produce 25 kinds of different dark spaces about. The microcontroller 6 formulates a control strategy of the high beam module 10 according to real-time road information picked up by the image acquisition module and sends the control strategy to the matrix LED control manager 5, the matrix LED control manager 5 can simulate pwm signals through built-in software to adjust the duty ratio of high level and low level in square waves with certain frequency, so that the brightness control of each single LED lamp can be realized, the high beam module 10 generates different dark areas or bright areas, specifically, 9 LED lamps of the high beam module 10 are uniformly arranged in a matrix form, the matrix LED control manager 5 determines the LED lamps and the brightness which need to be lightened according to the control strategy, the light intensity of the dark areas is between 0.5lux and 5lux, the typical value is 2.5lux, glare is prevented from being generated, the light intensity of the bright areas is between 40lux and 50lux, the typical value is 45lux, the illumination angle is the same as that of the low beam module 9, the field of view is enhanced, and the interference of driving vehicles is avoided.
The microcontroller 6 of this embodiment controls the lighting of the corner lamp module 11 according to the feedback signal of the deflection angle sensor and/or the steering sensor, the microcontroller 6 detects the working state of the matrix LED module in real time according to the temperature analog voltage signal and the luminous flux analog voltage signal fed back by the LED temperature sensor and the LED luminous flux detection module, and the microcontroller 6 performs open-circuit protection, short-circuit fault diagnosis and overall luminous flux compensation on each single LED through the matrix LED control manager 5.
The microcontroller 6 of this embodiment carries out information interaction through CAN communication module and image acquisition module, receive the altitude sensor signal simultaneously, the steering wheel corner signal of deflection angle sensor, the indicator logic signal of steering sensor, LED temperature signal and LED luminous flux signal, after handling all information integration, realize corresponding automatic height-adjusting and light-adjusting, self-adaptation distance light and follow-up turn to assist three major functions of illumination through matrix LED management module control passing beam module 9, distance light module 10 and corner lamp module 11, effectively improve the all-weather driving lighting environment of vehicle, improve the security of whole driving.
The control method of the LED automobile headlamp module comprises the following steps:
step 101: when a user selects a headlamp to control an AUTO gear, the intensity of ambient light is less than 30lux and the vehicle speed is greater than 60km/h, the system enters a self-adaptive intelligent remote control mode, and when the ambient illumination is greater than 50lux and the vehicle speed is less than 50km/h, the system is automatically switched to near light illumination;
step 102: under the self-adaptive intelligent remote control mode, when meeting an opposite meeting vehicle within 400 meters ahead, the driving control unit controls the matrix LED module to generate a dark space which moves along with the vehicle and covers the meeting outline so as to avoid meeting glare; when a vehicle is driven forwards within 200 meters ahead simultaneously, the driving control unit controls the matrix LED module to generate a dark area covering the outline of the vehicle along with the distance to avoid glare of a rearview mirror of the vehicle, and when a vehicle meeting and the vehicle driving ahead simultaneously occur, the driving control unit controls the matrix LED module to generate a bright area between two independent dark areas to enhance the visual field;
step 103: under the intelligent high beam control mode of self-adaptation, when the vehicle distance is close to, automatic switch over becomes the illumination of passing light module 9, and when the place ahead does not have the vehicle, automatic resume is the illumination of high beam module 10.
And when the manual forced high beam operation is finished for 2 seconds, automatically returning to the self-adaptive intelligent high beam control mode.
When the vehicle speed is less than 60km/h and more than 10km/h, the driving control unit automatically turns on the corner lamp module 11 in the corresponding direction according to the steering lamp logic signal of the steering sensor and the corner signal of the deflection angle sensor. The follow-up steering auxiliary lighting mode can automatically turn on the corner lamps in the corresponding direction to carry out follow-up steering lighting by combining the information of the real-time road condition of a turning intersection, the steering wheel deflection angle and the steering lamp signal, which are picked up by the external image acquisition module, and meanwhile, the specific luminous flux of the corner lamp module 11 can also be intelligently adjusted according to the actual driving condition so as to provide an auxiliary lighting range of 38 degrees, so that a driver can immediately find the driving condition near the curve area.
When the vehicle speed is lower than 5km/h, the driving control unit adjusts the illumination angle of the low beam module 9 within the interval range of 1-5 degrees through the vehicle body inclination amount provided by the height sensor signal to obtain the optimal illumination area.
It should be understood that the above-described specific embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Obvious variations or modifications which are within the spirit of the invention are also within the scope of the invention.
Claims (7)
1. The utility model provides a LED automotive headlamp module which characterized in that: the head lamp module includes:
the matrix LED module is used for automobile running illumination;
the information acquisition unit is used for acquiring real-time pavement information and sending the acquired real-time pavement information to the drive control unit;
the driving control unit is used for controlling the matrix LED module, controlling the matrix LED module according to real-time pavement information, controlling the matrix LED module to generate a dark space which moves along with a vehicle and covers a vehicle crossing outline to avoid vehicle crossing glare when opposite vehicle crossing is carried out, controlling the matrix LED module to generate a dark space which covers a front vehicle outline along with the distance to avoid front vehicle rearview mirror glare when the same-direction front vehicle is met, and controlling the matrix LED module to generate a bright area between two independent dark spaces to enhance the visual field when the vehicle crossing and the front vehicle are carried out simultaneously;
the information acquisition unit comprises an image acquisition module, a height sensor, a deflection angle sensor, a steering sensor, an LED temperature sensor and an LED luminous flux detection module, the image acquisition module is communicated with the microcontroller (6) through a CAN communication module (7), and the height sensor, the deflection angle sensor, the steering sensor, the LED temperature sensor and the LED luminous flux detection module are respectively connected with the microcontroller (6);
the device comprises an image acquisition module, a height sensor, an LED temperature sensor, an LED luminous flux detection module, a steering angle sensor and a steering lamp, wherein the image acquisition module is arranged above a vehicle window rearview mirror and used for acquiring real-time road surface information, the height sensor is arranged on a vehicle body and used for detecting the inclination of the vehicle body, the LED temperature sensor and the LED luminous flux detection module are arranged on a matrix LED module, the LED temperature sensor is used for detecting the temperature variation of the matrix LED module in the working process of a light source, the LED luminous flux detection module is used for measuring the total amount of visible light radiated by the light source, the deflection angle sensor is used for providing a steering wheel corner signal, and the steering sensor is used for providing a steering lamp logic signal;
the matrix LED module comprises a dipped beam module (9), a high beam module (10) and an angle lamp module (11), a microcontroller (6) controls the irradiation angle of the dipped beam module (9) according to the vehicle body inclination measured by a height sensor, the microcontroller (6) formulates a control strategy of the high beam module (10) according to real-time road surface information picked up by an image acquisition module and sends the control strategy to a matrix LED control manager (5), the microcontroller (6) controls the illumination of the angle lamp module (11) according to a feedback signal of a deflection angle sensor and/or a steering sensor, the microcontroller (6) detects the working state of the matrix LED module in real time according to a temperature analog voltage signal fed back by an LED temperature sensor and a luminous flux analog voltage signal fed back by an LED luminous flux detection module, and the microcontroller (6) performs open circuit protection, short circuit fault diagnosis and integral compensation of luminous flux on each single LED through the matrix LED control manager (5);
the LED high beam light module (10) on the left side and the right side are combined to generate 25 different dark areas, a microcontroller (6) formulates a control strategy of the high beam light module (10) according to real-time pavement information picked up by an image acquisition module and sends the control strategy to a matrix LED control manager (5), the matrix LED control manager (5) simulates pwm signals through built-in software to adjust the duty ratio of high level and low level in square waves with certain frequency, the brightness control of each single LED lamp is realized, the high beam light module (10) generates different dark areas or bright areas, 9 LED lamps of the high beam light module (10) are uniformly arranged in a matrix form, the matrix LED control manager (5) determines the LED lamps needing to be lightened and the brightness according to the control strategy, and the light intensity of the dark areas is between 0.5lux and 5 lux.
2. The LED automotive headlamp module of claim 1, wherein: the drive control unit comprises a drive module and a control module, the drive module comprises an anti-reverse-connection protection module (1), a boost control module (2), a constant-current control module (4) and a constant-voltage output module (3), one end of the anti-reverse-connection protection module (1) is connected with a power supply, the anti-reverse-connection protection module (1) is used for protecting a rear-end circuit of the drive control unit, the other end of the anti-reverse-connection protection module (1) is electrically connected with one end of the boost control module (2), the boost control module (2) is used for boosting power supply voltage to drive the rated voltage required by the matrix LED module, the other end of the boost control module (2) is electrically connected with the constant-current control module (4), the constant-current control module (4) is used as a rear-stage power supply circuit of the boost control module (2), the constant-current control module (4) is used for outputting and driving the rated current required by the matrix LED module, the anti-reverse-connection protection module (3) is electrically connected with the constant-voltage output module (3) for providing a constant-voltage power supply for the control module.
3. The LED automotive headlamp module of claim 2, wherein: the control module comprises a microcontroller (6) and a matrix LED control manager (5), the microcontroller (6) receives data information of the information acquisition unit, the microcontroller (6) analyzes the data information and sends a message command to the matrix LED control manager (5), and the matrix LED control manager (5) generates control signals of different multi-path pulse widths to control and manage each single LED in the matrix LED module.
4. An LED automobile headlamp module control method using the LED automobile headlamp module as claimed in any one of claims 1 to 3, characterized in that: the method comprises the following steps:
step 101: when a user selects the headlamps to control the AUTO gear, the intensity of ambient light is less than 30lux, the vehicle speed is greater than 60km/h, the system enters a self-adaptive intelligent high-beam control mode, and when the ambient illumination is greater than 50lux, and the vehicle speed is less than 50km/h, the system is automatically switched to a low-beam module (9) for illumination;
step 102: under the self-adaptive intelligent remote control mode, when meeting an opposite meeting vehicle within 400 meters ahead, the driving control unit controls the matrix LED module to generate a dark space which moves along with the vehicle and covers the meeting contour so as to avoid meeting glare; when a vehicle is driven forwards within 200 meters ahead simultaneously, the driving control unit controls the matrix LED module to generate a dark area covering the outline of the vehicle along with the distance to avoid glare of a rearview mirror of the vehicle, and when a vehicle meeting and the vehicle ahead simultaneously occur, the driving control unit controls the matrix LED module to generate a bright area between two independent dark areas to enhance the visual field;
step 103: under the self-adaptation intelligence distance light control mode, when the vehicle distance is close, automatic switch over to passing light module (9) illumination, when the place ahead does not have the vehicle, automatic resume is the illumination of distance light module (10).
5. The LED automobile headlamp module control method according to claim 4, wherein: and when the manual forced high beam operation is finished for 2 seconds, the self-adaptive intelligent high beam control mode is automatically recovered.
6. The LED automobile headlamp module control method according to claim 4, wherein: when the vehicle speed is less than 60km/h and more than 10km/h, the driving control unit automatically turns on the corner lamp module (11) in the corresponding direction according to the steering lamp logic signal of the steering sensor and the corner signal of the deflection angle sensor.
7. The LED automobile headlamp module control method according to claim 4, wherein: when the vehicle speed is lower than 5km/h, the driving control unit adjusts the irradiation angle of the low beam module (9) within the range of 1-5 degrees through the vehicle body inclination amount provided by the height sensor signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610960968.8A CN108016348B (en) | 2016-11-04 | 2016-11-04 | LED automobile headlamp module and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610960968.8A CN108016348B (en) | 2016-11-04 | 2016-11-04 | LED automobile headlamp module and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108016348A CN108016348A (en) | 2018-05-11 |
| CN108016348B true CN108016348B (en) | 2023-02-14 |
Family
ID=62083830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610960968.8A Active CN108016348B (en) | 2016-11-04 | 2016-11-04 | LED automobile headlamp module and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108016348B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108819830A (en) * | 2018-05-24 | 2018-11-16 | 北京经纬恒润科技有限公司 | A kind of control method, control device and the control system of intelligence headlamp |
| CN109808585B (en) * | 2019-01-31 | 2021-08-13 | 吉利汽车研究院（宁波）有限公司 | Vehicle lamp control method, device and system, vehicle lamp controller, vehicle and medium |
| CN109823258B (en) * | 2019-03-04 | 2020-10-23 | 同济大学 | Intelligent auxiliary control system and method for matrix type LED high beam |
| JP7279196B2 (en) * | 2019-05-29 | 2023-05-22 | ヴァレオ ビジョン | Method of operating automotive lighting system and automotive lighting system |
| FR3100864B1 (en) * | 2019-09-17 | 2021-12-10 | Psa Automobiles Sa | Vehicle headlight |
| FR3100866A1 (en) * | 2019-09-17 | 2021-03-19 | Psa Automobiles Sa | Vehicle headlight |
| US11732859B2 (en) | 2019-09-17 | 2023-08-22 | Psa Automobiles Sa | Vehicle headlamp |
| CN110701571A (en) * | 2019-10-15 | 2020-01-17 | 江苏恒瑞车灯有限公司 | Car headlight structure convenient to light is adjusted |
| CN113928214A (en) * | 2020-06-29 | 2022-01-14 | 广州汽车集团股份有限公司 | Vehicle corner lamp control method, vehicle body control module and vehicle corner lamp control system |
| CN113183868B (en) * | 2021-05-27 | 2022-10-28 | 同济大学 | Intelligent matrix LED headlamp control system based on image recognition technology |
| CN114179712B (en) * | 2021-12-29 | 2024-03-12 | 东风汽车有限公司东风日产乘用车公司 | Vehicle headlamp control method, electronic device, and storage medium |
| CN117320218B (en) * | 2023-11-28 | 2024-02-20 | 杭州亿时照明工程设计有限公司 | Comfort consistency control method for intelligent lighting system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190664A (en) * | 2006-12-01 | 2008-06-04 | 丰田自动车株式会社 | Vehicular illumination system |
| CN102658791A (en) * | 2012-05-25 | 2012-09-12 | 北京经纬恒润科技有限公司 | Automatic dimming system for automotive headlamps |
| EP3016140A1 (en) * | 2014-10-31 | 2016-05-04 | Nichia Corporation | Light emitting device and adaptive driving beam headlamp system |
| CN105889840A (en) * | 2016-06-08 | 2016-08-24 | 广东雷腾智能光电有限公司 | Self-adaptive high-low-beam integrated LED multi-module headlamp |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101260981B (en) * | 2006-08-31 | 2010-06-09 | 曹民 | Multifunctional hand / automatic complementary type front shining lamp dimmer and its control method |
| CN104228665B (en) * | 2014-09-17 | 2016-08-24 | 南京航空航天大学 | A kind of control method of self-adapted car headlamp |
-
2016
- 2016-11-04 CN CN201610960968.8A patent/CN108016348B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190664A (en) * | 2006-12-01 | 2008-06-04 | 丰田自动车株式会社 | Vehicular illumination system |
| CN102658791A (en) * | 2012-05-25 | 2012-09-12 | 北京经纬恒润科技有限公司 | Automatic dimming system for automotive headlamps |
| EP3016140A1 (en) * | 2014-10-31 | 2016-05-04 | Nichia Corporation | Light emitting device and adaptive driving beam headlamp system |
| CN105889840A (en) * | 2016-06-08 | 2016-08-24 | 广东雷腾智能光电有限公司 | Self-adaptive high-low-beam integrated LED multi-module headlamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108016348A (en) | 2018-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108016348B (en) | LED automobile headlamp module and control method thereof | |
| CN106985640B (en) | Active anti-dazzling method and active anti-dazzling device for automobile | |
| US8410703B2 (en) | Control device for electricity supply to a headlamp | |
| CN109823258B (en) | Intelligent auxiliary control system and method for matrix type LED high beam | |
| US20130258688A1 (en) | Adaptive external vehicle illumination system | |
| CN205022450U (en) | Vehicle headlamps intelligence control system | |
| CN206243017U (en) | A kind of automotive LED headlamp module | |
| CN108657062A (en) | A kind of adjustable intelligent vehicle head lamp system of brightness based on environment and method | |
| US20070008093A1 (en) | Automobile headlight high beam warning system | |
| CN104859531B (en) | A kind of Intelligent control device for automobile brake lamp, method and automobile | |
| CN213586379U (en) | Signal receiving and emergency feedback device for automobile lamp | |
| CN204605643U (en) | Passenger vehicle adverse-weather lamp and comprise the Lighting System of this adverse-weather lamp | |
| CN211493831U (en) | Pixel type headlamp control system and vehicle | |
| CN107105556A (en) | A kind of control system and its method for adjusting relay indicating light brightness | |
| CN112440862A (en) | Pixel type headlamp control system and method and vehicle | |
| CN201571227U (en) | Automatic dimming controller of head lamp of motor vehicle | |
| CN101242696B (en) | Self-adapted car headlight control device | |
| CN209540776U (en) | Polymorphic coupling intelligent LED taillight | |
| CN112026637A (en) | Passenger vehicle far and near light control system and method capable of intelligently adjusting illumination area | |
| JP3196682U (en) | Daylight conversion adapter | |
| CN109855047A (en) | Polymorphic coupling intelligent LED taillight | |
| CN2837877Y (en) | Anti-glare rear-view mirror for automobile | |
| CN210792973U (en) | Intelligent switching device for high beam and low beam of automobile | |
| CN209833485U (en) | Automatic dimming control system for high beam and low beam lamps of automobile at night | |
| CN111376820A (en) | Automatic control system for car lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |