The Nuna4 is a solar car developed by the Delft University of Technology in 2006-2007 for the 2007
World Solar Challenge. It succeeds the Nuna3, the solar car that scored a hat trickby winning the World Solar Challengefor the third time in a row.
The Nuna4 measures 472 x 168 x 110 cm and weighs less than 190 kg (without driver). Its main innovation is its very light construction.
The Nuna4 won the 2007 World Solar Challenge in an average speed of 90.87 km/h ahead of the Belgian Umicore and Australian Aurora teams. [ [http://www1.wsc.org.au/Media.Centre/Releases/2007103101.pdf Final Results] ]
Changes to previous version
Because of risks involved with the high speeds reached by the solar cars in the previous races (Nuna3 averaged over 102 km/h) and tighter speed limits on the Australian roads the rules were changed for the 2007 race to enhance safety and reduce speed.
These changes are
* Nuna4 solar panel is smaller, measuring 6m2 instead of 9m2. This means that it is slower and much smaller than its predecessor.
* The driver sits almost upright. In previous Nuna cars the driver was lying down.
* The driver is protected not only by a tough canopy, but also by roll bars and a helmet.
* Nuna4 has a steering wheel. Previous versions were steered by levers.
* Nuna4 is higher. That makes it frontal surface area rather bigger, but the consequences of that are partially offset by even better aerodynamics.
Adaptive cruise control
Nuna4 is equipped with a GPS-tracking system. Its data is transferred via a
WiFiconnection to a support vehicle. A computer in the support vehicle calculates the optimum speed based on the data from the car and additional information including wind speed and direction, the gradient of the road, solar conditions and the state of the batteries. This speed is sent wireless to the Nuna4 cruise control. The car accelerates or decelerates accordingly. The driver only has to steer whilst driving using this adaptive cruise controlsystem.
Nunamain article about the Nuna series of Dutch solar cars
Twente Onea challenging Dutch solar car, which succeeded the SolUTra.
List of solar car teams
World Solar Challenge
* [http://www.nuonsolarteam.nl/ web site of the Nuna4 team]
Wikimedia Foundation. 2010.
Look at other dictionaries:
Nuna 4 — File:Nuna4 op Stuart Highway.jpg Nuna 4 driving on Stuart Highway towards Adelaide Nuna solar racer Nuna 1 (2001) Nuna 2 (2003) Nuna 3 (2005) Nuna 4 (2007) Nuna 5 (2009) Nuna 6 (2011) The Nuna 4 is a solar car developed by the Delft University of … Wikipedia
World Solar Challenge — The World Solar Challenge is a solar powered car race which covers 3021 km (1,877 miles) through the Australian Outback, from Darwin to Adelaide. The race attracts teams from around the world, most of which are fielded by universities or… … Wikipedia
SolUTra — The Solutra is the first solar car designed by a group of students, the Raedthuys Solar Team, of the University of Twente. It participated in the 8th World Solar Challenge in 2005 and finished 9th place. Another Dutch team won the race with their … Wikipedia
Twente One — The Twente One is the second solar car developed by the University of Twente in 2007, and succeeds the SolUTra. It was designed to participate in the 2007 World Solar Challenge.Its main innovations were a pivoting solar screen that follows the… … Wikipedia
SINAG — and the first entry of the Philippines to the World Solar Challenge. The solar car was inaugurated last January 27 at NBC Tent, Fort Bonifacio Global City, Taguig.DesignThe design and construction was undertaken by a group of faculty and students … Wikipedia