Audi system allows cars and traffic lights to communicate
Author: MotorTorque Team
Published: 19 September 2008
Audi has announced new technology that could allow cars to communicate with other road vehicles and traffic lights, in order to minimise stop-start driving and cut down on fuel consumption.
Audi says the experimental ‘Travolution’ system improve synchronisation and phasing of traffic light networks to reduce stopping times, and also reduce the number of actual stops needed by creating a communications link between cars and the traffic light network.
Communications modules built into each traffic light are able to send messages to cars in the vicinity, alerting them to the time remaining until their next green phase.
The car’s onboard system is then able to calculate the speed which the driver must maintain in order to pass through the light during this green phase, and displays this via the Multi Media Interface display.
A network of 46 of the ‘intelligent’ traffic lights has been installed in the centre of Ingolstadt, Germany, optimising their phasing to bring stopping times down to a minimum, reducing fuel consumption and pollution in the process.
Of the 46 light gantries, three have been upgraded to enable communication with the specially modified A5 and A6 Avant models provided by Audi as part of the 1.2-million Euro pilot project. A further 20 cars and 50 light installations are to be incorporated as the project evolves.
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