Car LED lights a day introduction to English version
一．Car LED lights a day introduction
Installed in the front bodywork of daytime driving lights,Is for vehicles during the day are more likely to be recognized while driving lamps.Private day light is a motor launch will automatically turn on when special lamps,Its efficacy is not to enable the driver to see pavement,Other road users but a significant improvement in the level of visibility of motor vehicles,And compared with the currently used nearly light very energy-saving,Only an ordinary lamp power consumption result,If you are using LED technology,Power consumption only ordinary lamp 10%,When the cars start time light will automatically turn on,Going to the car lights in the evening, when manually lit the lamp, Lamp is off a day,more humane use of light a day. This lamp is not lighting but a semaphore. Of course, adding DRL daytime runnin
g light can make the car look more cool, more shine, But the most powerful of DRL daytime running light is not beautiful, but to provide vehicle identification. But the most powerful of DRL daytime running light is not beautiful, but to provide vehicle identification.。
Therefore, in recent years many countries have formulated relevant DRL daytime running light marked with the assurance to the production and installation of daytime running lights can truly guarantee the effectiveness of security. In order to increase road safety, Decision
of the European Commission in 2011 years ago with new motor configurations specialized lights a day. Which are the most representative of ECE automobile technical regulations of the Economic Commission for Europe ECER79. Also came into operation on January 1, 2010, released March 6, 2009 in China national standards of the photometric characteristics of daytime running lamps for motor vehicles. This standard is based on the ECE R79 modelled on the fourth revision of the first edition of the drafting, the standard deleted in ECE R79 chapters and annexes relating to management.
Earlier these days most of the light using halogen bulbs, Although electricity consumption is small, but with the advancement of technology, now Depot designed by daylight line most of the lamps using high brightness LED configuration, will significantly reduce the power of up to 35%,More can increase battery life, up to 8,000 hours and often longer life, is nearly identical to the life of the vehicle. This LED to more widely used cars.
二．Car LED lights a day status
The EU formally issued a special permit to the Audi, On the supercar R8 is allowed to pick up full-LED headlamps. Volkswagen Group applies the LED lights to its various models, Each series has a different design and modelling, LED lights a sudden became the iconic Volkswagen vehicle accessories. at present; Increase in domestic common models are mostly imported cars equipped with LED light set, Such as the Volkswagen Touareg, Porsche911 and Lamborghini model. In addition, also mentioning BMW, because BMW automobile assembly similar to daytime running lights lamp group --" angel eyes". BMW E39 1997 internal numbers (that is, the fourth generation of 5-series) started using on you are commonly known as "Angel eyes", Perhaps at that time BMW did not consider past traffic lights between the functions, "Angel eyes" just to design beautiful, But this innovative design has been adopted subsequently, became the characteristic of BMW cars. Of course, "Angel eyes" is not the true meaning of the daytime running lamp, On the new BMW models, LED day light is independent of the "Angel eye" exists. Worth noting is that, BMW's "Angel eyes" has been used cathode (CCFL), because of its own short life, disadvantages, such as environmentally unfriendly lead has not been widely used. Althoug
h BMW "Angel eye" gradually began to use LED materials, but still light eyebrow at the installation of daytime running lamp, "Angel eyes" became embodied features BMW's iconic decoration. In fact, the wide use of daytime running lamp is derived from the European Union to impose a standard automotive lamp. On September 24, 2008, the European Commission announced to the outside world, since February 7, 2011, all new passenger cars and small trucks manufactured in the EU, as well as all types of trucks and buses shipped August 7, 2012 new daytime lights must be installed. Forces launch because of this policy: the European Commission investigation found, from North America in the early implementation of the day turned on headlights while driving effect, reduces 12.4% of vehicle accidents, but also can reduce the probability 26.4% of car accident, But lights halogen bulbs consume a relatively large, relatively short life, increases the use of owner costs. With Philips Lumileds lighting company, and Marie-France Pisier group lamp company in Automotive LED success in the field of research and development, European Commission's determination to implement the mandatory installation of daytime running lamp, making the mandatory measures referred to above to be put into reality. You will ofte
n see white light lamp car after passing away from you, but are mostly European imports cars, domestic cars still does not appear. Because in terms of vehicle safety regulations in China had not yet mandatory, is far from reach the level of mandatory use of daytime running lamp. While car manufacturers because of cost considerations, nor hastily for vehicles equipped with lights during the day. In the domestic market, basic equipment daytime running lamp is imported models, and converted internally many automobile enthusiasts use their own way, adding lights during the day. Such retrofitted although there is no change in-car circuit, but it poses security risks for vehicle distribution, moreover when the vehicle, you also need to remove daytime running lamp, otherwise it will be identified as illegal modification, pass the vehicle examination link, therefore did not. 2011 full cash cars, compared to the new generation of the Audi A8, the greatest highlight is undoubtedly the beautiful LED lamp group. In the Audi new car, different forms of LED daytime driving lights have become standard on models, but it can be said that no single car LED lights set of comparable design and the scientific and technological content of the new Audi A8.led汽车灯泡 Full-LED headlamps of their equipment reflects a major advancement of tech
nology, is very noteworthy, LED headlamps of the new Audi A8 is used to replace the traditional lamp group, it includes the full functionality of the headlight group, not just the LED line lights during the day. As can be seen from the figure, this is a very complex set of lights set of systems, the bottom part is close to the triangle LED reflector, namely global climate in light. Separate parts on the right side is driving lamps, while other parts including lamp control, lights sets fans, etc. According to Audi-related sources, although light combinations of groups has a lot of changes, but the actual operation is a very smart, does not require motorists to remember. At the time of the actual use of, in many cases new A8 owners may not understand under lights is a combination in which, in fact, this does not matter, as long as beautiful, and practical good.
三．Automobile LED lamp products a day performance
Main technical requirements are in line with ECE R79.
Belo First of all, specifying in the standards, daytime driving lights must be white light, color characteristics must meet the specified requirements.w, we look White chromaticity coordin
ates: at a qualified DRL products, what is not free to change.
Blue boundary: x ≥ 0.310 yellow boundary: x ≤ 0.500 green boundary: y ≤ 0.150+0.640x ≤ 0.440x y border of Purple: y ≥ 0.050+0.750x red boundary: y ≥ 0.382
Second, require light-emitting surface shall not be less than 40cm2.
Most of all is the photometric characteristics, brightness of the traffic lights during the day to meet basic requirements, but also not too bright, so as not to interfere with the others.
Reflected in the technical parameters is base on the axis of the luminous intensity shall be not less than 400cd; luminous intensity shall be not less than 400cd in the other direction and product percentage distribution of corresponding points in figure with light in any direction, intensity of light emitted by lamps should not be greater than 800cd.
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