The evolution of the solar car in five generations

Polygon World Solar Challenge for 20 years is a testing ground for the latest ideas and technologies, engineers and scientists in the field of construction materials, tires, aerodynamics, traction batteries and solar panels of course. The main constraints are the capacity of the battery, envelope machines and space solar cells. Fills the battery with excessive sun on the slopes or during braking, and then helps accelerate the car or when clouds move. Capacity to a maximum of 5 kilowatt hours. Charge it fully only at the start, and fill it only from the sun during the race. Battery can not be changed, as credited time penalty.

Solnemobili externally all alike. The final shape of such a machine was formed in mid-1990: Body flat, the wing looks like, the entire surface of the free solar panels, cockpit pilot Delicate, almost to the ground wheel fairings. In such a machine three wheels: two in front and lead back, which is equipped with an electric motor built into the hub - the drive line. However, the creators solntsemobiley are many subtleties that distinguish their vehicle from a car rivals, since no matter where the winners come from? One of those winning teams Nuon Solar Team Technical University of Delft. In 2001, one hundred percent of their solar car Nuna was the fastest. Speed averaged 91.81 miles per hour. At the next race in 2003 Nuna2 won at a rate of 97.02 km / h. At the three-kilometer race in 2005 Nuna3 won at a rate of 102.75 km/h. Nuna4 won first place in 2007 with the result of the speed of 90.87 km / h, while it was entirely of its predecessor. This was due to race regulations, which decreased by 25% allowable area of solar panels. This happened due to the fact that the maximum speed on those sections of the route is 110 km / h on local traffic rules, and participants in the race to develop the already speed in excess of 130 km / h. Therefore, the organizers of the contest decided that the primary goal, ie, the emergence of a solar-powered cars has been achieved. Now the challenge for the participants of the other - to build in more severe conditions such as fast cars for daily travel. Nuon Solar Team in June 2009 presented officially solar car Nuna 5, the most advanced solar car in the world.

Vehicle weight 160 kg. Trehperehodnye solar cells based on gallium arsenide photovoltaic cells installed in 2120 on a new car. Battery Lithium-polymer is responsible for the conservation of energy. Body Nuna May around the cell safety of titanium is built, consists of panels created from aramid and carbon fibers. Made of lightweight materials and chassis: carbon fiber suspension arms, aluminum other elements on ceramic bearings, aluminum wheels. The front brake discs are ceramic, rear wheel only braking regenerative.