Technology of Our Current Vehicle
Inhaltsverzeichnis/Table of contents (hide)
- 1. Chassis
- 2. Tyres/Steering
- 3. Drivetrain
- 3.1 Power Source
- 3.2 Motor
- 4. Aerodynamics
1. Chassis
- Self Supporting Carbon Fibre Monocoque L x W x H (mm): 2930 x 890 x 540
- Weight: 25 kg
- cd-value: 0,17
2. Tyres/Steering
- Ackermann Steering
- Tyres: Michelin Radial
- front: 20''
- rear: 20''
3. Drivetrain
3.1 Power Source
Hydrogen Fuell Cell
- Fuel cell stack "Nexa" from Ballard
- Number of cells: 47
- Max. power output: 1,2kW
- Max. power used during race: 200W
- Average power used during race: 50W
- High efficency at part-load operational range.
Direct Ethanol Fuel Cell
- At the University of Applied Sciences developed Direct Ethanol Fuel Cell Stack
3.2 Motor
- Self Designed Hub Motor
- Poles: 36
- Number of Phases: 3
- Weight: 7,66 kg
- Max. Power output: 2 kW
- Max. Speed: ca. 50 km/h
- Controlled by CAN-Bus
- Completely integrated Electronics
- Awards: 2006 1st Price BOSCH Technical Innovation
4. Aerodynamics
Simulation and Calculation with ANSYS CFX
Measurements of Flow in University's Wind Tunnel via Laser-Doppler-Anemometry (LDA)
- Chassis: cd = 0,12
- Frontwheels: cd = 0,22
- Front Suspension: cd = 0,45
- Entire Vehicle: cd = 0,17
- Surface against flow: 0,237 m²
- Power loss at 30 km/h: 14 W