2014 Audi A8 will have Matrix LED headlights

  • Jul 02, 2013
[caption id="attachment_40536" align="alignnone" width="600" caption="Audi Matrix LED headights"][/caption]

At the high end market for super limo's, there is a war among the three German biggies as to who puts in the most amount of technology on board. These are cars that are not built to a price but are built to showcase what a car company can do. While the recently revealed new S-Class is a stunning car packed with loads of technology its arch rivals are also out to prove who builds the best limo. Audi has just teased its 2014 A8 luxury sedan and as expected it will be dripping with awesome technology.

A big talking point is the Matrix LED headlights which is a new technology. It will make their debut on the new A8 which is appearing on the market at the end of 2013.

[caption id="attachment_40537" align="alignnone" width="600" caption="Audi Matrix LED"][/caption]

What is Matrix LED technology?

Audi Matrix LED technology splits up the LED high-beam headlights into numerous individual, small diodes working in conjunction with lenses or reflectors connected in series. Managed by a responsive control unit, they are activated and deactivated or dimmed individually according to the situation.

This means they always supply high-precision illumination and achieve the maximum possible light yield without needing a pivoting mechanism. In the new Audi A8, each headlight comprises 25 high-beam light-emitting diodes, arranged in groups of five per reflector. When the light switch is set to “automatic” and the high-beam headlights are on, the system is activated from 30 km/h on highways and from 60 km/h on city streets.

As soon the camera in the A8 detects oncoming vehicles, the Audi Matrix LED headlights dip the relevant sections of the high-beam headlights. The system operates with such precision that it blanks out light that would shine directly onto oncoming and preceding vehicles, but continues to cast the high beams with full power on all other zones between and beside them.

The closer an approaching vehicle gets, the more LEDs are deactivated or dimmed. When there is no more oncoming traffic, the high-beam headlights then resume full power, including the sections that had previously been off. The light that the driver sees is always bright, homogeneous and much more effective than that produced by competitors’ mechanical dipping systems.

[caption id="attachment_40538" align="alignnone" width="600" caption="Audi Matrix LED technology"][/caption]

One of its safety functions in the Audi A8 involves providing what are known as marker lights. These team up with the optional night vision assistant to mark detected pedestrians. When it detects a person in the critical range in front of the car, individual LEDs flash at them rapidly three times in succession, picking out the pedestrian clearly from their surroundings and alerting both the pedestrian and the driver.

The light-emitting diodes of the Audi Matrix LED headlights also perform the cornering light function in which they displace the emphasis of the beam in the direction of the bend.

By calling on predictive route data supplied by the MMI navigation plus, they do so shortly before the steering needs to be turned. Another function in the new Audi A8 is the turn signal with dynamic display: The LED's in the turn signals flash in blocks at 150 millisecond intervals in the direction that the driver intends to turn.





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