CN102862508A - Automatic regulating system of headlamp of automobile - Google Patents
Automatic regulating system of headlamp of automobile Download PDFInfo
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- CN102862508A CN102862508A CN2012103804231A CN201210380423A CN102862508A CN 102862508 A CN102862508 A CN 102862508A CN 2012103804231 A CN2012103804231 A CN 2012103804231A CN 201210380423 A CN201210380423 A CN 201210380423A CN 102862508 A CN102862508 A CN 102862508A
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Abstract
The invention discloses an automatic regulating system of a headlamp of an automobile. The automatic regulating system is characterized in that after receiving information acquired by two angle sensor modules, a controller module respectively controls a left lamp motor driving module and a right lamp motor driving module, so that a stepper motor is driven to work, and the illumination direction of the headlamp of the automobile is regulated. The system with the circuit structure has the advantages that the illumination direction of the headlamp of the automobile can be automatically regulated; the illumination direction is slowly regulated under the software control, and dizziness sensation is prevented; and the automatic regulating system is low in cost, is not related to other control units of the automobile, and does not affect normal running of the automobile.
Description
Technical field
The present invention relates to Der Scheinwerfer mit FernlichtAbblendlichtStandlicht, particularly a kind of variotrol of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht.
Background technology
Traditional vehicle front lighting lamp system is to be combined by passing light, country beam, travel lamp and adverse-weather lamp.In the situation that urban highway travels and speed limit, mainly adopt dipped beam; When country road or express highway are run at high speed, mainly adopt distance light; Greasy weather be opened fog lamp when travelling; Travel daytime, should turn on the lamp that travels.
But in the actual use, traditional head lamp system exists problems.For example, existing passing light is very bad at the illuminating effect of closely going up, and particularly in the urban district of traffic more complicated, often has a lot of drivers and at night passing light, country beam and adverse-weather lamp is completely opened; Had a strong impact on the judgement of driver to road conditions; Vehicle is when the rainy day travels, and the light of the ponding reflection headlamp on ground produces anti-dazzling light etc.
Because the existence of these problems, just so that develop a kind of head lamp that can automatically regulate direction of illumination and necessitate.
Summary of the invention
Technical matters to be solved by this invention is, a kind of variotrol of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht is provided, and can automatically regulate the purpose of direction of illumination to reach automobile front.
For solving the problems of the technologies described above, technical scheme of the present invention is, a kind of variotrol of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht, it is characterized in that: described system controls respectively left lamp motor drive module and right lamp motor drive module after controller module receives the Information Monitoring of two angular transducer modules, and Driving Stepping Motor work is regulated the direction of illumination of automobile front.
Described angular transducer module is separately positioned on the vehicle body of automobile and hangs.
Be respectively equipped with the A/D converting unit between described controller module and two angular transducer modules, carry out the conversion between digital quantity and the analog quantity.
Carry out communication by the LIN bus between described controller module and left lamp motor drive module and the right lamp motor drive module.
Described controller module is connected to angular transducer module, left lamp motor drive module, right lamp motor drive module by BAT and ground wire respectively, thereby powers for modules.
When described controller module arranges the step number that need to move when stepping motor less than 50 step in software, disregard.
Described controller module each run step number when the control step machine operation on average sends several times, equates each off time that sends.
A kind of variotrol of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht, owing to adopting the foregoing circuit structure, this system has the following advantages: 1 so that automobile front can be regulated direction of illumination automatically; 2, by software control, slowly regulate, there is not spinning sensation; 3, become not lower, do not relate to other control units of automobile, do not affect normally travelling of automobile.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments;
Fig. 1 is the circuit block diagram of the variotrol of a kind of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht of the present invention;
Fig. 2 is the software flow pattern of the variotrol of a kind of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht of the present invention;
In Fig. 1,1, controller module; 2, angular transducer module; 3, left lamp motor drive module; 4, right lamp motor drive module.
The specific embodiment
As shown in Figure 1, the present invention controls respectively left lamp motor drive module 3 and right lamp motor drive module 4 after controller module 1 receives the Information Monitoring of two angular transducer modules 2, and Driving Stepping Motor work is regulated the direction of illumination of automobile front.
Carry out communication by the LIN bus between controller module 1 and left lamp motor drive module 3 and the right lamp motor drive module 4.Controller module 1 is connected to angular transducer module 2, left lamp motor drive module 3, right lamp motor drive module 4 by BAT and ground wire respectively, thereby powers for modules.
On the software, when controller module 1 arranges the step number that need to move when stepping motor less than 50 step in software, disregard.Simultaneously, controller module 1 each run step number when the control step machine operation on average sends several times, equates each off time that sends.
The present invention adopts the angular transducer module 2 that is installed in the bodywork height on suspension and the vehicle body, obtains the high variable quantity of front axle and rear axle, and calculates the vehicle pitch angle degree according to wheelbase.The variable quantity of vehicle pitch angle degree is exactly the variable quantity of headlight optical axis angle, by the running of light dimming electric motor, oppositely adjusts this angle and changes, and just can make optical axis be returned to original state, and the maintenance level.
Concrete mode of operation is divided into: power-up initializing: behind the automotive ignition, the ALS control module is carried out a string flyback action.Initialized purpose be for stepping motor operation step number afterwards take this zero-bit as benchmark; Static light modulation: change (number of occupants/position/reserve storehouse article load-carrying) according to static weight and automatically adjust the illumination height; Dynamic light adjustment: the dynamic change according to (anxious acceleration, anxious deceleration, uphill/downhill etc.) bodywork height in the speed of a motor vehicle and the driving process changes the pitch angle of car light, to guarantee rational irradiation distance; Road surface identification: under various jolt road surface and short time road shockss (slowed down road-block), the head lamp irradiation distance can frequently not adjusted, and prevents that driver's eyes is tired; The ALS module also has detecting fault, diagnosis, online programming function.
As shown in Figure 2, in the process of automobile dynamic operation, too frequent for the adjusting of light in order to prevent locking system, in software, increased Filter, the step number that namely need to move when stepping motor is disregarded less than certain value the time, so thereby on the road surface or other factors when causing the sensor values subtle change to cause the very short step number of stepping motor operation, motor is failure to actuate, regulates too frequent and affect our vision so light just can not occur.
We often do not wish that motor moment runs to assigned address from certain position in the operational process of stepping motor, thereby visually bring inadaptable for the people, processing thought in software is to divide several steps to control to the operation step number of stepping motor, such as the adjusting (supposing that the number of steps that needs to regulate was 600 steps) that need to carry out stepping owing to factors such as road bumps, 1 minute several step of controller module send order so, sending out at first first for 200 steps allows the stepping motor movement, sent out again for 200 steps after the 10ms ... (annotate: the step of 200 in above-mentioned and 10ms are tentation datas until reach needed operation step number, can actual arrange according to effect), so just can not feel the process excessive velocities of light adjusting but a process slightly slowly.
The above has carried out exemplary description to the present invention by reference to the accompanying drawings; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted technical solution of the present invention to carry out, or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (6)
1. the variotrol of a Der Scheinwerfer mit FernlichtAbblendlichtStandlicht, it is characterized in that: described system controls respectively left lamp motor drive module (3) and right lamp motor drive module (4) after controller module (1) receives the Information Monitoring of two angular transducer modules (2), and Driving Stepping Motor work is regulated the direction of illumination of automobile front.
2. the variotrol of a kind of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht according to claim 1 is characterized in that: described angular transducer module (2) is separately positioned on the vehicle body of automobile and hangs.
3. the variotrol of a kind of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht according to claim 1 and 2 is characterized in that: be respectively equipped with the A/D converting unit between described controller module (1) and two the angular transducer modules (2).
4. the variotrol of a kind of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht according to claim 1 is characterized in that: carry out communication by the LIN bus between described controller module (1) and left lamp motor drive module (3) and the right lamp motor drive module (4).
5. the variotrol of a kind of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht according to claim 1, it is characterized in that: described controller module (1) is connected to angular transducer module (2), left lamp motor drive module (3), right lamp motor drive module (4) by BAT and ground wire respectively.
6. the variotrol of a Der Scheinwerfer mit FernlichtAbblendlichtStandlicht is characterized in that: when described controller module (1) arranges the step number that need to move when stepping motor less than 50 step in software, disregard; Described controller module (1) each run step number when the control step machine operation on average sends several times, equates each off time that sends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103804231A CN102862508A (en) | 2012-09-29 | 2012-09-29 | Automatic regulating system of headlamp of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103804231A CN102862508A (en) | 2012-09-29 | 2012-09-29 | Automatic regulating system of headlamp of automobile |
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| CN102862508A true CN102862508A (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012103804231A Pending CN102862508A (en) | 2012-09-29 | 2012-09-29 | Automatic regulating system of headlamp of automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1572587A (en) * | 2003-06-06 | 2005-02-02 | 三菱电机株式会社 | Vehicle headlight optical axis control unit |
| CN101386279A (en) * | 2007-09-10 | 2009-03-18 | 株式会社电装 | Apparatus for controlling swivel angles of on-vehicle headlights |
| CN101403480A (en) * | 2007-10-01 | 2009-04-08 | 欧姆龙株式会社 | Headlight optical axis adjustment device |
| US20120002430A1 (en) * | 2010-07-01 | 2012-01-05 | Koito Manufacturing Co., Ltd. | Control device for vehicle lamp, vehicle lamp, and method of controlling vehicle lamp |
| JP2012096663A (en) * | 2010-11-02 | 2012-05-24 | Koito Mfg Co Ltd | Control device of vehicle lamp, vehicle lamp system, and control method of vehicle lamp |
-
2012
- 2012-09-29 CN CN2012103804231A patent/CN102862508A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1572587A (en) * | 2003-06-06 | 2005-02-02 | 三菱电机株式会社 | Vehicle headlight optical axis control unit |
| CN101386279A (en) * | 2007-09-10 | 2009-03-18 | 株式会社电装 | Apparatus for controlling swivel angles of on-vehicle headlights |
| CN101403480A (en) * | 2007-10-01 | 2009-04-08 | 欧姆龙株式会社 | Headlight optical axis adjustment device |
| US20120002430A1 (en) * | 2010-07-01 | 2012-01-05 | Koito Manufacturing Co., Ltd. | Control device for vehicle lamp, vehicle lamp, and method of controlling vehicle lamp |
| JP2012096663A (en) * | 2010-11-02 | 2012-05-24 | Koito Mfg Co Ltd | Control device of vehicle lamp, vehicle lamp system, and control method of vehicle lamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Application publication date: 20130109 |