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Save Millions of Litres in Fuel with Traffic Light Recognition Technology

The Audi Online traffic light information system has the potential to save time and fuel by alerting the driver to the speed required to reach the next green light.

Published March 19, 2014
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Audi is ready to add a little oil to the wheels of the daily grind with advanced traffic light recognition technology which could make driving through towns and cities far more fluid and free of annoying and economy-denting red light punctuation.
Audi Online traffic light information harnesses the power of in-car internet in a new way via Audi connect to establish a link between the car and the traffic light network via the central traffic computer in each town or city.
It quickly assimilates the automated traffic light change sequences in the vicinity, and on the approach to a set of lights the Driver Information System (DIS) located in the central instrument cluster then shows the driver the speed to select in order to pass through the light during a green phase. It also displays a visual aid using red, amber or green icons.
If the driver is already waiting at a red light, Audi connect will calculate and count down the time remaining until the next green light is scheduled to appear via a timer on the DIS.
The system also interacts with the car’s Start-Stop function to ensure the engine is switched on five seconds before the green phase.
The fully functional system is now production ready and could be fitted to every Audi model in the range subject to the necessary government legislation.

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