CN103010093A - Backlight processing method of automobile combination instrument - Google Patents
Backlight processing method of automobile combination instrument Download PDFInfo
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- CN103010093A CN103010093A CN2012105242972A CN201210524297A CN103010093A CN 103010093 A CN103010093 A CN 103010093A CN 2012105242972 A CN2012105242972 A CN 2012105242972A CN 201210524297 A CN201210524297 A CN 201210524297A CN 103010093 A CN103010093 A CN 103010093A
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- 238000005286 illumination Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
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Abstract
The invention provides a backlight processing method of an automobile combination instrument, which aims to solve the problem of backlight mutation of a combination instrument, avoid inadaptation of vision of a driver due to backlight brightness mutation and improve the driving comfortability of a whole automobile. The backlight processing method of the automobile combination instrument comprises the following steps that an automobile body controller is respectively connected with a backlight lamp, a backlight lamp switch and a backlight lamp adjuster of the combination instrument, after a signal of the backlight lamp switch is received by the automobile body controller, a backlight value signal of the backlight lamp adjuster is read first, then the brightness of the backlight lamp is adjusted in accordance with the backlight value signal, and the brightness of the backlight lamp is controlled by the automobile body controller to gradually increase until the brightness of the backlight lamp meets the requirement of the backlight value signal. According to the backlight processing method, after the backlight of the combination instrument is turned on, the backlight brightness of the combination instrument is gradually changed, the problem of the backlight mutation of the combination instrument is solved, the inadaptation of the vision of the driver due to the backlight brightness mutation is avoided, and the driving comfortability and safety of the whole automobile are improved.
Description
Technical field
The invention belongs to technical field of automotive electronics, specially refer to a kind of processing method backlight of automobile combination meter.
Background technology
Along with the development of automotive technology, people are more and more higher to the security requirement of car load, and the traveling comfort of simultaneously car load being driven has also had higher requirement; And the part of the most intuitively seeing as chaufeur backlight of combination instrument also just has been subject to more and more higher attention rate.The combination instrument of at present a lot of vehicles is brightness meeting sudden change when backlight open, can cause the of short duration inadaptable of Driver Vision, affects driver comfort, even can affect traffic safety.
Summary of the invention
The objective of the invention is to propose a kind of processing method backlight of automobile combination meter, to solve combination instrument sudden change problem backlight, avoid being not suitable with because of the Driver Vision that the backlight illumination sudden change causes, improve the traveling comfort that car load is driven.
In the processing method backlight of automobile combination meter of the present invention, car body controller is connected with backlight, backlight switch, the backlight regulator of combination instrument respectively, car body controller is behind the signal that receives the backlight switch, at first read the backlight value signal of backlight regulator, then regulate the brightness of backlight according to this backlight value signal, key is that the brightness of car body controller control backlight increases gradually, until the brightness of backlight reaches the requirement of backlight value signal.
Improve gradually by the brightness of backlight that makes automobile combination meter, can avoid the backlight illumination sudden change, thereby guarantee that chaufeur of short duration visual discomfort can not occur, and then improve comfort level and the safety of driving.
Further, the control signal that the backlight value signal of described backlight regulator and car body controller export backlight to is pwm signal, so that the brightness of car body controller control backlight makes it final consistent with the requirement of backlight value signal.
Further, after described car body controller received the backlight value signal, sending dutycycle to backlight was zero pwm control signal, and improves gradually the dutycycle of pwm control signal, until the dutycycle of pwm control signal is identical with the dutycycle of backlight value signal.Control by pwm signal, can very accurately progressively improve the brightness of backlight, and can make the brightness of backlight final consistent with the requirement of backlight value signal.
Further, described car body controller is connected with the relay switch of automobile position lamp; Receiving the signal of backlight switch when car body controller after, the relay switch adhesive of control automobile position lamp, thus light the automobile position lamp, so just realized simultaneously the control to position lamp.
Specifically, car body controller links to each other with the backlight of combination instrument by a change-over circuit, described change-over circuit comprises the first resistance, the second resistance, electric capacity and NPN type aerotron, circuit series and Capacitance parallel connection that described the first resistance and the series connection of the second resistance form, form circuit parallel, one end of described circuit parallel is connected with car body controller, other end ground connection, the contact of described the first resistance and the second resistance links to each other with the base stage of NPN type aerotron, the collecting electrode of described NPN type aerotron links to each other the grounded emitter of described NPN type aerotron by the backlight of combination instrument with power supply.The pwm control signal that car body controller sends becomes the electric current that voltage signal is controlled NPN type aerotron through the conversion of the first resistance, the second resistance, electric capacity, thus the brightness of control backlight.
Further, receive the signal of backlight switch when described car body controller after, if fail to read the backlight value signal of backlight regulator, then car body controller sends the pwm control signal that dutycycle is predetermined value to backlight, and the brightness that makes backlight is predetermined luminance.Can break down or when the communication of car body controller and backlight regulator breaks down at backlight regulator like this, still can light backlight, and be set as lower dutycycle by the predetermined value with pwm control signal, can also guarantee that sudden change can not appear in the brightness of backlight.
The processing method backlight of combination instrument of the present invention is behind the combination instrument backlight open, make the gradual change of combination instrument backlight illumination, solve the problem of combination instrument sudden change backlight, avoided being not suitable with because of the Driver Vision that the backlight illumination sudden change causes, improved car load driver comfort and safety.
Description of drawings
Fig. 1 is the systematic schematic diagram (arrow represents that signal flows to) of combination instrument of the present invention.
Fig. 2 is the junction circuit schematic diagram of car body controller and backlight.
The specific embodiment
The below contrasts accompanying drawing, by the description to embodiment, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and principle of work etc. are described in further detail.
Embodiment 1:
As shown in Figure 1, in the processing method backlight of automobile combination meter, car body controller is connected with the relay switch of backlight switch, backlight regulator, automobile position lamp respectively, and car body controller links to each other with backlight by a change-over circuit.
As shown in Figure 2, described change-over circuit comprises the first resistance R 1, the second resistance R 2, capacitor C 1 and NPN type aerotron Q1, the circuit series that the first resistance R 1 and 2 series connection of the second resistance R form is in parallel with capacitor C 1, form circuit parallel, one end of described circuit parallel is connected with car body controller, other end ground connection, the contact of the first resistance R 1 and the second resistance R 2 links to each other with the base stage of NPN type aerotron Q1, the backlight LED1 of the collecting electrode of NPN type aerotron Q1 by combination instrument～8 and current-limiting resistance R3 link to each other the grounded emitter of NPN type aerotron Q1 with the 12V power supply.The pwm control signal that car body controller sends becomes the electric current that voltage signal is controlled NPN type aerotron Q1 collecting electrode through the conversion of the first resistance R 1, the second resistance R 2, capacitor C 1, thus the brightness of control backlight.
Car body controller at first reads the backlight value signal of backlight regulator behind the signal that receives the backlight switch, the brightness of then controlling backlight increases gradually, until the brightness of backlight reaches the requirement of backlight value signal; The relay switch adhesive of simultaneously car body controller control automobile position lamp, thus light the automobile position lamp.
Specifically, the control signal that the backlight value signal of backlight regulator and car body controller export backlight to is pwm signal, after car body controller receives the backlight value signal, sending dutycycle to backlight is zero pwm control signal, and improve gradually the dutycycle of pwm control signal, until the dutycycle of pwm control signal is identical with the dutycycle of backlight value signal.
Receive the signal of backlight switch when car body controller after, if fail to read the backlight value signal of backlight regulator, then car body controller sends the pwm control signal that dutycycle is predetermined value to backlight, and the brightness that makes backlight is predetermined luminance.Can break down or when the communication of car body controller and backlight regulator breaks down at backlight regulator like this, still can light backlight, and be set as lower dutycycle by the predetermined value with pwm control signal, can also guarantee that sudden change can not appear in the brightness of backlight.
The processing method backlight of combinations thereof instrument is behind the combination instrument backlight open, make the gradual change of combination instrument backlight illumination, solve the problem of combination instrument sudden change backlight, avoided being not suitable with because of the Driver Vision that the backlight illumination sudden change causes, improved car load driver comfort and safety.
Claims (7)
1. the processing method backlight of an automobile combination meter, car body controller is connected with backlight, backlight switch, the backlight regulator of combination instrument respectively, car body controller is behind the signal that receives the backlight switch, at first read the backlight value signal of backlight regulator, then regulate the brightness of backlight according to this backlight value signal, the brightness that it is characterized in that car body controller control backlight increases gradually, until the brightness of backlight reaches the requirement of backlight value signal.
2. the processing method backlight of automobile combination meter according to claim 1 is characterized in that the backlight value signal of described backlight regulator and the control signal that car body controller exports backlight to are pwm signal.
3. the processing method backlight of automobile combination meter according to claim 2, after it is characterized in that described car body controller receives the backlight value signal, sending dutycycle to backlight is zero pwm control signal, and improve gradually the dutycycle of pwm control signal, until the dutycycle of pwm control signal is identical with the dutycycle of backlight value signal.
4. according to claim 1 and 2 or the processing method backlight of 3 described automobile combination meters, it is characterized in that described car body controller is connected with the relay switch of automobile position lamp; Receiving the signal of backlight switch when car body controller after, the relay switch adhesive of control automobile position lamp, thus light the automobile position lamp.
5. the processing method backlight of automobile combination meter according to claim 4, it is characterized in that described car body controller links to each other with the backlight of combination instrument by a change-over circuit, described change-over circuit comprises the first resistance, the second resistance, electric capacity and NPN type aerotron, circuit series and Capacitance parallel connection that described the first resistance and the series connection of the second resistance form, form circuit parallel, one end of described circuit parallel is connected with car body controller, other end ground connection, the contact of described the first resistance and the second resistance links to each other with the base stage of NPN type aerotron, the collecting electrode of described NPN type aerotron links to each other the grounded emitter of described NPN type aerotron by the backlight of combination instrument with power supply.
6. according to claim 1 and 2 or the processing method backlight of 3 described automobile combination meters, it is characterized in that after described car body controller receives the signal of backlight switch, if fail to read the backlight value signal of backlight regulator, then car body controller sends the pwm control signal that dutycycle is predetermined value to backlight, and the brightness that makes backlight is predetermined luminance.
7. the processing method backlight of automobile combination meter according to claim 4, it is characterized in that after described car body controller receives the signal of backlight switch, if fail to read the backlight value signal of backlight regulator, then car body controller sends the pwm control signal that dutycycle is predetermined value to backlight, and the brightness that makes backlight is predetermined luminance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210524297.2A CN103010093B (en) | 2012-12-10 | 2012-12-10 | Backlight processing method of automobile combination instrument |
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| CN201210524297.2A CN103010093B (en) | 2012-12-10 | 2012-12-10 | Backlight processing method of automobile combination instrument |
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| CN103010093B CN103010093B (en) | 2015-01-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786640A (en) * | 2014-01-23 | 2014-05-14 | 昆山明宽环保节能科技有限公司 | Method for controlling backlight source of instrument panel |
| CN105128732A (en) * | 2015-08-28 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Backlight adjusting system and method for automobile |
| CN106314154A (en) * | 2016-08-31 | 2017-01-11 | 惠州华阳通用电子有限公司 | Instrument backlight control method and device |
| CN106851241A (en) * | 2016-12-28 | 2017-06-13 | 广州途威慧信息科技有限公司 | Clear and smooth playing control method based on VR glasses |
| CN109094487A (en) * | 2018-09-28 | 2018-12-28 | 东南（福建）汽车工业有限公司 | A kind of the brightness of backlight regulating system and method for switch for vehicle |
| CN111416924A (en) * | 2020-03-19 | 2020-07-14 | 广汽蔚来新能源汽车科技有限公司 | Light filling control circuit, DMS camera, fatigue driving monitoring system and automobile |
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2012
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786640A (en) * | 2014-01-23 | 2014-05-14 | 昆山明宽环保节能科技有限公司 | Method for controlling backlight source of instrument panel |
| CN105128732A (en) * | 2015-08-28 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Backlight adjusting system and method for automobile |
| CN105128732B (en) * | 2015-08-28 | 2017-11-17 | 安徽江淮汽车集团股份有限公司 | A kind of automobile using backlight regulating system and method |
| CN106314154A (en) * | 2016-08-31 | 2017-01-11 | 惠州华阳通用电子有限公司 | Instrument backlight control method and device |
| CN106314154B (en) * | 2016-08-31 | 2019-01-01 | 惠州华阳通用电子有限公司 | A kind of instrument method for controlling backlight thereof and device |
| CN106851241A (en) * | 2016-12-28 | 2017-06-13 | 广州途威慧信息科技有限公司 | Clear and smooth playing control method based on VR glasses |
| CN109094487A (en) * | 2018-09-28 | 2018-12-28 | 东南（福建）汽车工业有限公司 | A kind of the brightness of backlight regulating system and method for switch for vehicle |
| CN111416924A (en) * | 2020-03-19 | 2020-07-14 | 广汽蔚来新能源汽车科技有限公司 | Light filling control circuit, DMS camera, fatigue driving monitoring system and automobile |
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| CN103010093B (en) | 2015-01-28 |
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