PowerCore SunCruiser
| Powercore | |
|---|---|
PowerCore SunCruiser (2013) |
|
| Sun cruiser | |
| Presentation year: | 2013 |
| Vehicle fair: | |
| Class : | Small car |
| Body shape : | Coupe |
| Engine: |
Electric motor : 17 kW |
| Length: | 4180 mm |
| Width: | 1600 mm |
| Height: | 1278 mm |
| Empty weight: | 340 kg |
| Production model: | none |
The PowerCore SunCruiser is a solar-powered road vehicle from Bochum University that took part in the 2013 World Solar Challenge . PowerCore suncruiser is the fifth vehicle the University of Bochum and the second of five solar cars corresponding to the EC vehicle class L7e and a street legal scored. The car was presented to the public on July 25, 2013 and offers space for three people. The car, which can reach a top speed of over 100 km / h, is powered by two wheel hub motors in the rear wheels, each with a maximum output of 8.5 kW. The vehicle's curb weight is around 340 kg, of which the batteries take up around 63 kg. With one battery charge, the range without solar radiation is 700 km at a steady speed of 65 km / h. The solar cells used are multi-layer solar cells with an efficiency of 29.7%. The output of the 3 m² solar cells on the roof is 833 W. (See also technical data sheet!)
Accumulators
The accumulators are 1316 lithium-ion accumulators . The cell type NCR-18650B from Panasonic is used. A battery weight of 63 kg is available for the World Solar Challenge (as of 2013). A stored amount of energy of 15.9 kWh at a nominal voltage of 100.8 V was achieved. The rules of the newly created cruiser class, in which the PowerCore SunCruiser is starting, stipulate that the battery pack can also be charged from the mains at three locations on the route.
Solar cells
The solar cells are tandem solar cells made of gallium arsenide . There are 944 cells on the roof, each capable of delivering a voltage of 2.28 V and a current of 0.47 A. The maximum efficiency of a cell is 29.7%. To achieve this level of efficiency, nine MPPTs (Maximum Power Point Tracker) are used in the vehicle. The total electrical power of the array is approx. 833 W.
engine
The engine is a development at Bochum University. The permanent magnet synchronous machine develops a maximum torque of 110 Nm and a nominal torque of 16 Nm.
run
World Solar Challenge
The vehicle was specially built for the World Solar Challenge 2013 (WSC 2013), which took place in Australia from October 6, 2013. It started in the so-called "cruiser class", which is named after a forerunner model from Bochum - the BOcruiser . This class wants to bring the aspect of everyday usability into focus in the development of solar vehicles. For the first time, a solar car from Bochum reached its destination without a breakdown after approx. 3,000 km through the Australian outback and was ultimately runner-up in the world championship. The Bochum University of Applied Sciences reported in a diary about participating in the WSC 2013 race.
European Solar Challenge
From October 10th to 12th, 2014 the PowerCore SunCruiser - together with its predecessor model and “circumnavigator” SolarWorld GT - took part in the European Solar Challenge (ESC). This took place in the Belgian Zolder on the former Formula 1 racetrack. There the SunCruiser achieved first place and thus became European Champion in 2014. In the four individual categories, the car won the endurance race over 9 hours and reached the second fastest lap.
Diary entries, picture galleries and videos from ESC 2014 can be found on the SolarCar website of Bochum University.
The team
During the race, the team consisted of around 30 students, who were also responsible for building the vehicle. In the team, individual working groups dealt with the electrics, mechanics, strategy and organization of the competition.
Individual evidence
- ↑ Bochum University: Websites for the PowerCore SunCruiser
- ↑ Picture gallery: Rollout of the PowerCore SunCruiser
- ↑ Springer Professional
- ↑ Technical data sheet for the PowerCore SunCruiser (PDF; 158 kB)
- ↑ Azur Space (PDF; 199 kB)
- ↑ Thyssenkrupp
- ↑ Press release Bochum University: In the end, vice world champion
- ↑ Diary of the World Solar Challenge 2013
- ^ World Solar Challenge
- ^ European Solar Challenge
- ↑ Press release Bochum University: double victory at the European championship of solar vehicles
- ↑ SolarCar Team 2013 ( Memento from February 2, 2014 in the Internet Archive )