Audi has been very depressed recently.
Since 2003, after the Pikes Peakquattro concept car is equipped with the world's first high-performance LED fog lamp, Audi has been hailed as a master of lighting and LED professional. However, at the 2014 CES show, when Audi continued to launch the concept car Sport quattro laserlight and announced the latest laser headlight technology, BMW suddenly jumped out of the way, and its laser headlight technology was available as early as 2011. Molding research has been applied to the production of the BMW i8.
Is this a feng shui? But Germany does not seem to pay attention to feng shui. Audi is puzzling and hopes that there are ways to make up for it. It is best to turn the tide. On the other hand, BMW not only sold the i8 model in 2014, but also the picture of the i8 key. Some even commented: Appreciate the quality of the car, starting with the key to knowing the BMW i8.
Audi is counted as a BMW.
Mass production philosophy of laser headlightsBMW's advertising marketing ideas are well-known, but in terms of product technology release, BMW is not a brand that is always on the rise. At this year's CES, BMW has released a series of the latest automotive smart technologies. These include hot autopilots, as well as assisted automatic parking and automatic adjustment of steering conditions. In the field of wearable devices that Mercedes-Benz has been enjoying, BMW introduced the iRemote app, enabling users to remotely access vehicle information via the Samsung GalaxyGear. In addition to displaying the BMW i3's charging status and driving time, this application can also check whether the doors, windows, and sunroof are off, as well as navigation and control of vehicle temperature.
From this point of view, BMW's shining in the laser headlight technology is not a sudden attack.
The laser diode of the laser headlights was born almost at the same time as the LED. The LED was commercialized relatively earlier, and gradually expanded from top to bottom in the application of the car lamp, becoming the mainstream direction of the development of the lamp. Whether it is Audi's ever-changing LED lines, or the LEDs of Mercedes-Benz in the new S-class, E-class all-LED applications, or the joint venture brand infiltrated a little bit, this is confirming this direction. However, the laser headlights have not been ignored.
In terms of component performance, laser headlights can achieve most of the advantages of LED headlights, such as fast response, low brightness attenuation, and smaller size. The individual laser diodes are only a few microns in diameter and are much smaller than conventional LED components, even one percent. Despite this, the laser headlights have much higher luminous efficiency than the LED lights, which also allows the latter to consume less energy in the same lighting effect, thus saving energy. For a strong laser, it can be injected into a fiber optic beam with only 10% to 20% of the initial energy lost, and the loss of the LED source will exceed 90%. A pair of old halogen headlamps consumes about 120 watts of car battery, while a pair of current best LED headlamps consumes about 40 watts. Using a laser can reduce energy consumption to less than 30 watts.
BMW said that its future laser headlamps may be five times brighter than existing LED lights. In addition to its own luminous efficiency, the light emitted by the laser light, because it is very close to the color temperature of the sun, also brings the effect of being more easily captured by the human eye. The BMW engineer mirrored the three blue lasers to the yellow phosphor filter, producing dazzling white light that was projected onto the reflective bowl to form a concentrated cone of light. However, at present, BMW's laser technology is set to be activated at a speed of 40 km/h or more. BMW said that it does not want these beams to illuminate the human eye for a long time, so when the speed slows down, the laser headlights will no longer be used. Intervene in the lighting system. At the same time, under the control of the diode, the laser headlights will also be turned off when a collision or a flame is extinguished due to wear. When the opposite car is detected, the system will automatically switch to the low beam.
BMW laser headlights
In fact, in addition to lighting, car lights have long been given more driving assistance requirements, which need to be matched with the sensor's feedback signal, such as steering lighting adjustment, adaptive adjustment and other functions. With the gradual clearing of the mass production plan for BMW laser headlights, laser lighting technology will also become a larger technology carrier. The i8's Kaiser may be just the beginning.
Change line or trackFor Audi, a large part of the detail design has been incorporated into the ever-changing lines of the lights. Once there was a set of pictures, collected the design samples and sketches of all the LED lights of Audi, stuffed into the phone, the brush has not seen the end for a long time, so everyone also gave Audi a nickname - the lighting factory. Although Mercedes-Benz and BMW, as well as more joint venture brands began to join the LED camp, Audi's carving of the lights has long been a self-contained style, and this has become a very prominent part of its brand impression.
For the Audi LED light group, it usually consists of 54 LED spots, including 14 anti-glare lights, 8 high beam lights, 24 daytime running lights and 8 signal lights. These LED spots do not work independently, but share one circuit board every four to form a composite light source. Audi's design simplifies LED applications and drives mass production.
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