Tunisian desert rally used to test LEDs - Embedded.com

Tunisian desert rally used to test LEDs

LONDON — Three KTM enduro motorcycles which took part in the Desert Logic motorbike rally in South Tunisia were equipped with LED lighting system prototypes developed by CML Innovative Technologies to test out the system.

Philippe Gosselet from CML-IT in Besançon, France, one of the company’s engineering centres of excellence for light design, kitted out the bikes for the rally. He also formed part of the CML-IT/KTM team riding them to a winning position after seven days and 1000km in the desert of southern Tunisia.

All LED lighting systems used on the motorcycles were designed to withstand the difficult environmental conditions in the desert (big temperature changes from very hot at day to very cold at night, high winds containing grains of sand and constant shocks and vibration from riding in sand and over dunes). Due to the low power requirements of the LEDs, the batteries of the bikes experienced minimum drain from CML-IT’s LED lighting systems.

Each motorcycle featured a high power LED brake light offering increased security in conditions with limited visibility. A LED system illuminating the roadmaps with high brilliance white LEDs ensured roadmaps were readable in all lighting conditions. A rheostat enabled the system to be adaptable to ambient luminosity. A security system consisting of two high power LEDs blinking consistently at the front and back of the bikes allowed the riders to be seen in the pitch black of the desert nights.

• LEDs have been manufactured since the early 1970s, but in recent years advances in this technology have accelerated notably. On Automotive DesignLine Horst Lengning, of Vishay Intertechnology describes how Brighter LEDs drive automotive lighting

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