CN101574943B - Vehicle lamp control system - Google Patents
Vehicle lamp control system Download PDFInfo
- Publication number
- CN101574943B CN101574943B CN2008100991085A CN200810099108A CN101574943B CN 101574943 B CN101574943 B CN 101574943B CN 2008100991085 A CN2008100991085 A CN 2008100991085A CN 200810099108 A CN200810099108 A CN 200810099108A CN 101574943 B CN101574943 B CN 101574943B
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- Prior art keywords
- control center
- lamp
- driving circuit
- light source
- light fixture
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Abstract
The invention relates to a vehicle lamp control system which at least comprises a lamp switch, a voltage regulator circuit, a control center and a driving circuit, wherein the lamp switch is connectedwith a main switch power supply of a vehicle and provided with three sections of contacts for starting, self-acting and closing; the lamp switch can output a signal to the control center which can se nd out a signal to the driving circuit to enable a lamp to be lit; a light source sensor and a humidity sensor are arranged between the main switch of the vehicle and the control center; and when the lamp switch is moved to the contact point for self-acting, the light source sensor and the humidity sensor can be started to detect the brightness and the humidity of the outside and input the signal to the control center to ensure that the control center outputs the signal to the driving circuit in a pulse width modulation way so that the lamp is connected in a linear brightness way, thereby achieving the aim of automatically controlling the brightness of the lamp and enhancing the safety of driving.
Description
Technical field
The present invention relates to a kind of vehicle lamp control system, relate in particular to the system that the light fixture that can make vehicle is controlled lamp brightness automatically according to brightness and the humidity in the external world.
Background technology
With reference to shown in Figure 1, general vehicle 1 need be provided with light fixture quite a lot for the regulation of safety and rules, such as light fixtures such as headlight 11, front direction light 12 and back lights 13, and the light fixture of most vehicle 1 uses LED as illuminating source, replacing conventional bulb is light emitting source, and during for fear of driving, steerman because of carelessness not with the switch open of headlight 11, therefore there is the dealer on the led drive circuit of vehicle 1, to be connected with optical inductor, detect the power of external light source by this optical inductor, with the open/close state of control light fixture.Existing light fixture is by installing optical inductor on car body, although can reach the control light fixture bright/dark, but still can cause following defective:
1. distinguish two sections luminous states of control with the power of light, when the pass through shaded side of overline bridge or building of vehicle 1, the situation of going out when bright when light fixture can occur.
2. work as extraneous light between the condition that light fixture opens and closes, the situation of going out when bright in the time of also can occurring.
3. if during the controlled condition of opening as headlight 11 with the switch of headlight 11, when not closing headlight 11 switch, the state that headlight 11 will become to open for a long time.
4. when if steerman is not closed headlight 11 or is passed through tube, headlight 11 brightness occur easily cross bright or dazzling situation, and the danger that causes subtend to send a car.
In view of the light fixture control that has vehicle now has above-mentioned shortcoming, therefore, how to provide the lamp control system that can give for extraneous light power the brilliance of automatic control lamp tool, the worth direction that develops of the real vehicle manufacturer of being.
Summary of the invention
Technical way of the present invention, provide a kind of vehicle lamp control system, this lamp control system includes lamp switch at least, mu balanced circuit, control center and driving circuit, this lamp switch is connected with the main switch power supply of vehicle, and be provided with startup, automatically and three sections contacts such as close, the exportable signal of this lamp switch is to control center, this control center can send signal makes driving circuit that light fixture is lighted, wherein, be provided with light source sensor and humidity sensor between the main switch of this vehicle and the control center, when lamp switch dials to from contact heel, this light source sensor and humidity sensor be can start and extraneous brightness and humidity detected, and incoming signal is to control center, and make control center output signal to driving circuit in the mode of pulse width modulation, with the control light fixture, when described light source sensor and described humidity sensor when wherein the magnitude of voltage of one exceeds the predeterminated voltage value of described control center, described control center can output signal to described driving circuit with pulse width modulation, described driving circuit then can be according to the signal driver light fixture action of described control center, and be the conducting of linear luminance, when the two magnitude of voltage of described light source sensor and described humidity sensor during all greater than the described predeterminated voltage value of described control center, described control center then can more described light source sensor and the two magnitude of voltage of described humidity sensor, and according to magnitude of voltage the greater, send signal to described driving circuit, make described light fixture conducting and be the control of linear luminance, reaching the purpose of automatic control lamp tool brightness, and the safety of promoting driving.
Another technological means of the present invention, provide a kind of vehicle lamp control system, wherein, the detected parameter of this light source sensor and humidity sensor is convertible into magnitude of voltage and is delivered to control center, when light source sensor or humidity sensor when wherein the magnitude of voltage of one is greater than the predeterminated voltage value of control center, this control center namely can send signal to driving circuit, to drive light fixture action and shinny degree.
Another technological means of the present invention, provide a kind of vehicle lamp control system, wherein, when the two magnitude of voltage of light source sensor and humidity sensor during all greater than the predeterminated voltage value of control center, this control center then can compare the two magnitude of voltage of light source sensor and humidity sensor, and according to magnitude of voltage the greater, send signal to driving circuit, make the light fixture conducting and be the control of linear luminance.
Description of drawings
Fig. 1 is the schematic side view of existing vehicle;
Fig. 2 is the circuit diagram of lamp control system of the present invention;
Fig. 3 is the action flow chart of lamp control system of the present invention.
The specific embodiment
Be the effect that enables to be easier to understand structure of the present invention and can reach, accompanying drawings is as follows:
At first, with reference to shown in Figure 2, be vehicle lamp control system 2 of the present invention, this lamp control system 2 includes lamp switch 21, mu balanced circuit 22, control center 23 and driving circuit 24 at least; Wherein this light fixture can be bulb or LED lamp when implementing.
Mu balanced circuit 22, the power supply of mainly battery 26 being exported gives filtering and voltage stabilizing, has stable magnitude of voltage to make this lamp control system 2.
Whether and the brightness of light fixture 27 driving circuit 24, the conducting of controlling light fixture 27 by control center 23.
The present invention is when implementing, with reference to Fig. 3, when the power turn-on of vehicle main switch 25, steerman then can be according to actual state, stir lamp switch 21 for starting (ON) or closing (OFF), and the signal that control center 23 can input according to start-up circuit 211a and shut-off circuit 213a makes driving circuit 24 conductings, and makes light fixture 27 for bright or do not work; And when steerman dials to lamp switch 21 automatically (AUTO), this light source sensor 28 and humidity sensor 29 can detect extraneous light power and humidity size, and convert the parameter that detects to voltage and constantly input to control center 23, in case light source sensor 28 or humidity sensor 29 are when wherein the magnitude of voltage of one exceeds the predeterminated voltage value of control center 23, this control center 23 namely can output signal to driving circuit 24 with pulse width modulation, driving circuit 24 then can move according to the signal driver light fixture 27 of control center 23, and is the conducting of linear luminance.In addition, when the two magnitude of voltage of light source sensor 28 and humidity sensor 29 during all greater than the predeterminated voltage value of control center 23,23 in this control center can compare the two magnitude of voltage of light source sensor 28 and humidity sensor 29, and according to magnitude of voltage the greater, send signal to driving circuit 24, make light fixture 27 conductings and be the control of linear luminance.
The present invention is by arranging light source sensor 28 and humidity sensor 29 between the main switch 25 of control center 23 and vehicle, if lamp switch 21 is allocated to from contact heel 212, it is strong and weak to utilize light source sensor 28 to detect extraneous light, when light is strong, the magnitude of voltage of light source sensor 28 is lower than the default value of control center 23, control center 23 namely can not output signal to driving circuit 24, light fixture 27 then can be not shinny, and when extraneous light die down suddenly (as under the overline bridge of passing through or the shady place such as tube), the magnitude of voltage of this light source sensor 28 is during greater than the default value of control center 23, this control center 23 namely outputs signal to driving circuit 24 with pulse width modulation, and driving circuit 24 then can make light fixture 27 be the conducting of linear luminance; Humidity sensor 29 then can detect extraneous humidity size, when humidity hour, the magnitude of voltage of humidity sensor 29 is lower than the default value of control center 23, control center 23 namely can not output signal to driving circuit 24, light fixture 27 then can be not shinny, and when extraneous high humidity (such as rainy day or the state that hazes), the magnitude of voltage of this humidity sensor 29 is during greater than the default value of control center 23, this control center 23 namely outputs signal to driving circuit 24 with pulse width modulation, and driving circuit 24 then can make light fixture 27 be the conducting of linear luminance; Wherein, this control center 23 is the two magnitude of voltage of light source sensor 28 and humidity sensor 29 relatively, and according to magnitude of voltage the greater, send signal to driving circuit 24, make light fixture 27 conductings and be the control of linear luminance, bright or dazzling with the unexpected mistake of the light source of avoiding light fixture 27, to promote the safety of driving.
Effect of the present invention is, by between the main switch 25 of vehicle and control center 23, light source sensor 28 and humidity sensor 29 being set, when lamp switch 21 dials to from contact heel 212, this light source sensor 28 and humidity sensor 29 be can start and extraneous brightness and humidity detected, and the parameter that will detect gained converts magnitude of voltage to and inputs to control center 23, make the mode that control center 23 can pulse width modulation output signal to driving circuit 24, and make light fixture 27 can be the conducting of linear luminance, thus, can make vehicle according to around light source or humidity control the brightness of light fixture 27, avoid light fixture 27 light to cross bright or dazzling effect to reach, and promote the safety of driving.
In sum, the present invention can reach purpose and the effect of institute's demand really by above-mentioned vehicle lamp control system.
Claims (5)
1. vehicle lamp control system, described lamp control system includes lamp switch at least, mu balanced circuit, control center and driving circuit, described lamp switch is connected with the main switch power supply of vehicle, and be provided with startup, automatically and three sections contacts such as close, the exportable signal of described lamp switch is to described control center, described control center can send signal makes described driving circuit that light fixture is lighted, it is characterized in that: be provided with light source sensor and humidity sensor between described main switch and the described control center, when described lamp switch dials to described during from contact heel, described light source sensor and described humidity sensor be can start and extraneous brightness and humidity detected, and incoming signal is to described control center, make described control center output signal to described driving circuit in the mode of pulse width modulation, with the control light fixture, when described light source sensor and described humidity sensor when wherein the magnitude of voltage of one exceeds the predeterminated voltage value of described control center, described control center can output signal to described driving circuit with pulse width modulation, described driving circuit then can be according to the signal driver light fixture action of described control center, and be the conducting of linear luminance, when the two magnitude of voltage of described light source sensor and described humidity sensor during all greater than the described predeterminated voltage value of described control center, described control center then can more described light source sensor and the two magnitude of voltage of described humidity sensor, and according to magnitude of voltage the greater, send signal to described driving circuit, make described light fixture conducting and be the control of linear luminance.
2. vehicle lamp control system as claimed in claim 1, wherein, described control center is microprocessor.
3. vehicle lamp control system as claimed in claim 1, wherein, described light source sensor is photoconductive cell.
4. vehicle lamp control system as claimed in claim 1, wherein, described light fixture can be instrument with lamp or headlight.
5. vehicle lamp control system as claimed in claim 1, wherein, described light fixture can be bulb or LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100991085A CN101574943B (en) | 2008-05-09 | 2008-05-09 | Vehicle lamp control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100991085A CN101574943B (en) | 2008-05-09 | 2008-05-09 | Vehicle lamp control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101574943A CN101574943A (en) | 2009-11-11 |
| CN101574943B true CN101574943B (en) | 2013-04-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100991085A Expired - Fee Related CN101574943B (en) | 2008-05-09 | 2008-05-09 | Vehicle lamp control system |
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| Country | Link |
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| CN (1) | CN101574943B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102026461B (en) * | 2010-05-20 | 2013-07-10 | 上海科世达-华阳汽车电器有限公司 | Automobile light control device |
| CN102248922A (en) * | 2011-03-09 | 2011-11-23 | 奇瑞汽车股份有限公司 | Automobile backlight control system and control method thereof |
| CN102729894B (en) * | 2011-04-02 | 2014-08-27 | 廖运昌 | LED (Light-Emitting Diode) car light monitoring system |
| KR101398225B1 (en) * | 2012-12-27 | 2014-05-23 | 현대모비스 주식회사 | Head lamp for vehicle |
| CN110979170B (en) * | 2019-12-18 | 2021-02-09 | 安徽天健环保车辆部件有限公司 | Backlight adjusting system and method for automobile instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039274U (en) * | 1988-07-13 | 1989-06-14 | 杨德恒 | Multi-function automatic control device for automotive vehicle |
| US6376824B1 (en) * | 1998-03-17 | 2002-04-23 | Robert Bosch Gmbh | Optical sensor |
| CN1440894A (en) * | 2002-02-24 | 2003-09-10 | 谢志勇 | Automatic vehicle light controller |
| CN2626781Y (en) * | 2003-06-23 | 2004-07-21 | 李芳成 | Intelligent vehicle light controller |
-
2008
- 2008-05-09 CN CN2008100991085A patent/CN101574943B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039274U (en) * | 1988-07-13 | 1989-06-14 | 杨德恒 | Multi-function automatic control device for automotive vehicle |
| US6376824B1 (en) * | 1998-03-17 | 2002-04-23 | Robert Bosch Gmbh | Optical sensor |
| CN1440894A (en) * | 2002-02-24 | 2003-09-10 | 谢志勇 | Automatic vehicle light controller |
| CN2626781Y (en) * | 2003-06-23 | 2004-07-21 | 李芳成 | Intelligent vehicle light controller |
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| Publication number | Publication date |
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| CN101574943A (en) | 2009-11-11 |
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