CN203047039U - Multi-degree of freedom automotive headlamp control device - Google Patents
Multi-degree of freedom automotive headlamp control device Download PDFInfo
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- CN203047039U CN203047039U CN 201220668739 CN201220668739U CN203047039U CN 203047039 U CN203047039 U CN 203047039U CN 201220668739 CN201220668739 CN 201220668739 CN 201220668739 U CN201220668739 U CN 201220668739U CN 203047039 U CN203047039 U CN 203047039U
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Abstract
The utility model discloses a multi-degree of freedom automotive headlamp control device which comprises a lamp socket of a left headlamp, a lamp socket of a right headlamp, a steering wheel angle sensor, an automotive body tilt angle sensor, an ECU control module, four work drive motors, a driving module and a power source module. The lamp socket of the left headlamp is connected with two work drive motors, and the lamp socket of the right headlamp is connected with two work drive motors. An output end of the steering wheel angle sensor and an output end of the automotive body tilt angle sensor are connected with an input end of the ECU control module, an output end of the ECU control module is connected with the four work drive motors through the driving module, and the power source module is connected with the ECU control module. The multi-degree of freedom automotive headlamp control device can automatically control headlamps to irradiate along the direction when an automobile swerves and goes on and down a ramp based on the situation that the headlamps are launched, a dead zone of a driver when the automobile is swerves or goes on or down the ramp or drives on other complex road surfaces is reduced or even eliminated, safety, intelligence and practicability of an automotive lighting system are enhanced, and unnecessary casualties and traffic accidents are reduced.
Description
Technical field
The utility model relates to car electrics electron illuminating system field of intelligent control, relates in particular to a kind ofly based on the multiple degree of freedom automobile headlight control device, and this device is applicable to all kinds of automobiles.
Background technology
Steady-state growth along with China's automobile pollution, and the urban and rural highway traffic network is progressively perfect, automobile is more and more universal as a kind of conveniently walking-replacing tool, and the modern automobile that depends on integrated controls such as computer intelligence control technology, especially micro controller system also develops towards the direction of more intelligent, human nature, safety.This wherein, because the night running safety misadventure is far more than daytime, what the probability that causes the accident was bigger then is because the head lamp blind area is serious, how to improve the headlamp lighting system of automobile night running, guarantee that chaufeur has better grasp to surrounding road condition and in time makes reasonably and controlling, and has just caused the very big concern of automotive research and navigating mate.
Summary of the invention
At existing fixed formula head lamp or the bad visual field influence that brings of the illumination drawback of head lamp under complex road condition of left-right rotation only, the purpose of this utility model is, a kind of multiple degree of freedom automobile headlight control device is provided, this device can be based under the situation of enabling at head lamp, automatically be implemented in and turn to, head lamp with to irradiation during up and down ramp, reduce even the blind area of elimination navigating mate under above or other complex road conditions, strengthen the safety of automobile lighting system, intelligent, practicality is to reduce unnecessary personal casualty and traffic accident.
In order to realize above-mentioned task, the utility model takes following technical scheme to be achieved:
1, a kind of multiple degree of freedom automobile headlight control device, comprise the lamp socket of left headlamp and the lamp socket of right headlamp, it is characterized in that, also comprise steering wheel angle sensor, body inclination angular transducer, ECU control module, four work drive motors, driver module and power module; Wherein, the lamp socket of described left headlamp is connected two work drive motors respectively with the lamp socket of right headlamp, the mouth of described steering wheel angle sensor, body inclination angular transducer is connected with the input end of ECU control module, the mouth of ECU control module is connected with four work drive motors by driver module, and power module is connected with the ECU control module.
The utility model also comprises following other technologies feature:
Described steering wheel sensor adopts the absolute angle survey sensor of SENSORWAY brand, and it is installed on the wheel steering tubing string.
It is MIM2 standard form double-shaft tilt angle sensor that described body inclination angular transducer adopts German ASM company model, is installed under the vehicle chassis place in the middle of the axletree.
Described ECU control module adopts Freescale 9S12DG128 micro controller system.
Described driver module adopts the 2803A type to drive chip.
A kind of intelligent multiple degree of freedom automobile headlight control device of the present utility model, object-oriented is all kinds of vehicles that dispose the headlamp lighting system, travels on the vehicle of complex road condition especially for a long time.Have the following advantages:
1, based on steering wheel angle and body inclination angle intelligence adjusting adaptively head lamp, greatly protected the good visual field of navigating mate, and to comprehensive grasp of road traffic condition, also provide suitable prompting and anti-glare effect to pedestrian, vehicular traffic;
2, this device adopts two motors, controls the multifreedom motion of headlight nest in level, vertical two planes respectively, widely modification scope and more accurate localization be conducive to keep the light area for perfect condition;
3, for about the vehicle, comprehensive consideration on slope, the left and right sides, highlighted this device and occurred headlamp lighting zone the taking into full account of unfavorable conditions such as empty and near-earth irradiation that occur wafing easily on road surface, various ramp for vehicle;
4, the device circuit is simple and easy, constitutes easyly, and components and parts are few, but functional reliability realization degree height utilizes Single-chip Controlling, economy and technology maturation;
5, enabling time Based Intelligent Control, hommization and reduce the chaufeur work load, the unified Vehicular accumulator cell that adopts further reduces the device complexity, meets the development tendency of the current electrical equipment integrated systemization of automobile.
Description of drawings
Fig. 1 is the utility model overall construction drawing;
Fig. 2 is ECU control module (9S12DG128 micro controller system) program flow diagram;
The utility model is described in further detail below in conjunction with description of drawings and embodiment.
The specific embodiment
A kind of intelligent multiple degree of freedom automobile headlight control device of the present utility model, its mentality of designing be based on steering wheel sensor, body inclination sensor vehicle is about to or is in turn to, the road surface situation travelled in the ramp detects and data-signal collection transmission in real time, and by the signal unified reception processing of ECU control module to gathering, by carrying out stored program, control command output, the driving work drive motor is handled the integrated motion in two planes of lamp socket, realizes the multivariant adaptivity smart motion of head lamp.
Referring to Fig. 1, the multiple degree of freedom automobile headlight control device of present embodiment comprises the lamp socket of left headlamp and the lamp socket of right headlamp, also comprises:
Steering wheel angle sensor for detection of steering wheel angle, for the rotation of head lamp in horizontal surface provides quantized values, is realized the intelligent follow-up of head lamp in horizontal surface;
The body inclination angular transducer, of living in for detection of vehicle about, the gradient that tilts, for the rotation of head lamp in vertical plane surface provides quantized values, realize the intelligent follow-up of head lamp in vertical surface;
The ECU control module adopts Single-chip Controlling, realizes that reception, the plug-in operation to each transducing signal handled, control command output, finally reaches the purpose that realizes the motion of head lamp multi-freedom intelligent;
Four work drive motors are installed two work drive motors respectively on the lamp socket of left headlamp, right headlamp, two work drive motors are respectively applied to control its lamp socket that connects and realize rotating in rotation, the vertical surface in the horizontal surface, realize the intelligent follow-up of head lamp;
Driver module is used for receiving the work order of ECU control module and drives the work drive motor action according to work order;
Power module utilizes the Vehicular accumulator cell power supply, is used to this device that stable operating voltage is provided, and guarantees normal reliable work.
The lamp socket of described left headlamp is connected two work drive motors respectively with the lamp socket of right headlamp, the mouth of described steering wheel angle sensor, body inclination angular transducer is connected with the input end of ECU control module, the mouth of ECU control module is connected with four work drive motors by driver module, and power module is connected with the ECU control module.
Above-mentioned each parts select for use product as follows:
Steering wheel angle sensor: steering wheel for vehicle rotary angle transmitter (SAS) is mainly used in the anglec of rotation of measured automobiles bearing circle when turning to, be installed on the wheel steering tubing string, the steering wheel angle sensor that adopts in the present embodiment is the multi-turn absolute angle way of output, but the absolute angle in direction of measurement dish multi-turn when rotation.Typical case in the automobile intelligent control technology uses: self-adaptive headlamp system (AFS), electric stabilizing system (ESP), electric boosting steering system (EPS), navigation and DAS (Driver Assistant System) (ADAS), intelligent parking system (PLA).
The major technique characteristics: the multi-turn absolute angle is measured; The non-contact measurement mode, work life is greater than 8,000,000 circulations; CAN bus communication interface is supported the customization agreement; The Bootloader on-line software updating; Source control, overvoltage, low pressure, reverse connecting protection.
The major product parameter is: affiliated brand: SENSORWAY; Type: magnetic resistance measurement of angle; Be electrically connected: cable; Output: CAN bus; Range :-780 °～+ 780 ° (customizable); Working temperature range :-40 ℃～85 ℃; Accuracy rate:＜± 2.5 °; Power supply: 8～32Vdc.
The body inclination angular transducer: obliquity sensor (claiming the electronic horizon meter again) is to be specifically designed to inclination angle displacement or the oscillating quantity that detects the relative the earth's core of measured object, and measuring unit is angle.Adopt in the utility model car body obliqueness sensor purpose be detect vehicle of living in about, the gradient tilts, reason is that the similar head lamp of regulating of the present invention is arranged now, but be confined to the left-right rotation of horizontal direction, and travel in up and down ramp, when tilting the ramp when vehicle, head lamp can better not accomplish that still intelligence regulates.The car body obliqueness sensor then can be realized the intelligent follow-up of head lamp in vertical surface for the rotation of head lamp in vertical plane surface provides quantized values.In this enforcement, adopting German ASM company model is MIM2 standard form twin shaft (dimension) obliquity sensor, and using method with the installation site is: be divided into vertically correspond respectively to up and down ramp with two different sensing directions of side direction, the ramp tilts; Vertically the sensing unit realization is that the plane of mid point line composition before and after axletree, the chassis and the perception of the folded angle of horizontal surface are measured, and what the side direction sensing unit was realized is that the plane of axletree, the left and right sides, chassis mid point line composition and the perception of the folded angle of horizontal surface are measured; Be installed under the vehicle chassis (floor) and locate in the middle of the axletree.The major product parameter is: output signal: voltage-type 0.5-4.5V; 0.5-10V; Current mode 4-20mA; Range ability: 0-± 15 °; 0-± 180 °; ± 180 ° of absolute inclination angles (the earth's core relatively); Resolution: 0.01%F.S.; Precision: ± 0.01%F.S.; Degree of protection: the highest IP69K(150m work under water forever).
The ECU control module: present embodiment adopts Freescale 9S12DG128 micro controller system, real-time vehicle running status signals via steering wheel angle sensor, the collection of body inclination angular transducer and transmission is imported micro controller system into by the single-chip processor i/o pin, micro controller system passes through to carry out stored program to signal, and output smart motion control command is handled headlight nest in the motion of level, vertical direction.Motion control instruction comprises the concrete quantized values motion of direction motion and all directions motion, guarantees the accurate motion of headlight nest, thereby realizes the optimal illumination scope of head lamp.Need special propose is, this device only just can start work under chaufeur is opened the prerequisite of head lamp, and Lighting System off positions such as daytime, the ECU control module disconnects this device working power, to play energy-conservation and fender guard purpose.
Freescale 9S12DG128 micro controller system adopts the 5V power supply, has the bus speed of 25MHZ, is widely used in the electric appliance and electronic automation control area at present.The characteristics of this micro controller system are the I/O pin that enriches and the communication module of Industry Control special use.The Flash capacity is 128KB, and communication module has SCI, SPI, IIC, CAN, J1850 etc.Its 112 pin package 91 I/O pins are arranged, can fully satisfy the signal transmission between each sensor signal pretreatment unit and the micro controller system; 16 tunnel 10 A/D switched pins, data that can smooth and easy realization micro controller system, instruction transmission.
Work drive motor: adopt four single flow electrical motors, two on every limit, control the multifreedom motion of left and right sides headlight nest in level, vertical two planes respectively, multivariant modification scope and accurate localization are conducive to keep the light area for perfect condition.Be installed in the fixedly lamp socket of head lamp.
Driver module: adopt the 2803A type to drive chip, can realize the reliable and stable and mode of operation timely of work drive motor.According to Freescale 9S12DG128 micro controller system pinout, 9 pins are ground connection, 1,18 pins, and 2,17 pins, 3,16 pins, 4,15 pins, 5,14 pins, 6,13 pins, 7,12 pins, 8,11 pins are a pair of input and output pin, totally 8 pairs.Utilized 6,13 pins wherein in this device, 7,12 pins, namely the incoming signal of low current from 6,7 pins can obtain the signal of high electric current from 13,12 pins, thereby reaches the purpose that improves electric current, has namely realized the operation acts of motor.
Power module utilizes the Vehicular accumulator cell power supply, is used to this device that stable operating voltage is provided, and guarantees normal reliable work.
Claims (5)
1. multiple degree of freedom automobile headlight control device, comprise the lamp socket of left headlamp and the lamp socket of right headlamp, it is characterized in that, also comprise steering wheel angle sensor, body inclination angular transducer, ECU control module, four work drive motors, driver module and power module; Wherein, the lamp socket of described left headlamp is connected two work drive motors respectively with the lamp socket of right headlamp, the mouth of described steering wheel angle sensor, body inclination angular transducer is connected with the input end of ECU control module, the mouth of ECU control module is connected with four work drive motors by driver module, and power module is connected with the ECU control module.
2. multiple degree of freedom automobile headlight control device as claimed in claim 1 is characterized in that, described steering wheel sensor adopts the absolute angle survey sensor of SENSORWAY brand, and it is installed on the wheel steering tubing string.
3. multiple degree of freedom automobile headlight control device as claimed in claim 1 is characterized in that, it is MIM2 standard form double-shaft tilt angle sensor that described body inclination angular transducer adopts German ASM company model, is installed under the vehicle chassis place in the middle of the axletree.
4. multiple degree of freedom automobile headlight control device as claimed in claim 1 is characterized in that, described ECU control module adopts Freescale 9S12DG128 micro controller system.
5. require described intelligent multiple degree of freedom automobile headlight control device as right 1, it is characterized in that, described driver module adopts the 2803A type to drive chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220668739 CN203047039U (en) | 2012-12-06 | 2012-12-06 | Multi-degree of freedom automotive headlamp control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220668739 CN203047039U (en) | 2012-12-06 | 2012-12-06 | Multi-degree of freedom automotive headlamp control device |
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| CN203047039U true CN203047039U (en) | 2013-07-10 |
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| CN 201220668739 Expired - Fee Related CN203047039U (en) | 2012-12-06 | 2012-12-06 | Multi-degree of freedom automotive headlamp control device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661085A (en) * | 2013-12-16 | 2014-03-26 | 江苏大学 | Car headlamp follow-up steering arc driving system |
| CN104163200A (en) * | 2014-08-30 | 2014-11-26 | 长城汽车股份有限公司 | Auxiliary semitrailer steering safety system |
| CN106541885A (en) * | 2016-09-30 | 2017-03-29 | 张家港长安大学汽车工程研究院 | A kind of car light follow-up control method based on steering wheel angle and vehicle roll angle |
| CN112896033A (en) * | 2021-01-15 | 2021-06-04 | 黄河水利职业技术学院 | Intelligent control device for automobile headlamp and method for controlling headlamp |
| CN113291226A (en) * | 2021-06-10 | 2021-08-24 | 西安正昌电子股份有限公司 | Headlamp follow-up control system and method based on steering wheel angle sensor |
-
2012
- 2012-12-06 CN CN 201220668739 patent/CN203047039U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661085A (en) * | 2013-12-16 | 2014-03-26 | 江苏大学 | Car headlamp follow-up steering arc driving system |
| CN104163200A (en) * | 2014-08-30 | 2014-11-26 | 长城汽车股份有限公司 | Auxiliary semitrailer steering safety system |
| CN104163200B (en) * | 2014-08-30 | 2016-06-29 | 长城汽车股份有限公司 | A kind of semi-trailer direction changing supplementary security system |
| CN106541885A (en) * | 2016-09-30 | 2017-03-29 | 张家港长安大学汽车工程研究院 | A kind of car light follow-up control method based on steering wheel angle and vehicle roll angle |
| CN106541885B (en) * | 2016-09-30 | 2019-01-11 | 张家港长安大学汽车工程研究院 | A kind of car light follow-up control method based on steering wheel angle and vehicle roll angle |
| CN112896033A (en) * | 2021-01-15 | 2021-06-04 | 黄河水利职业技术学院 | Intelligent control device for automobile headlamp and method for controlling headlamp |
| CN113291226A (en) * | 2021-06-10 | 2021-08-24 | 西安正昌电子股份有限公司 | Headlamp follow-up control system and method based on steering wheel angle sensor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20131206 |