| Car | Elipson-E |
| Class | Class 1A |
| University | TU Darmstadt |
| Car Number | 509 |
| Country | Germany |
| Length, width, height, wheelbase | 2803mm/1415mm/1211mm/1600mm |
| Track (front/rear) | 1220mm/1200mm |
| Weight of car (no driver) | est. 255kg |
| Weight distribution including 68kg driver (front/rear) | est. 128/195 |
| Suspension (front/rear) | Double unequal length A-Arm. Pull rod acuated horizontally oriented spring and damper |
| Tyres (front/rear) | 195×35-R15 Pirlelli |
| Wheels (front/rear) | 190 mm wide, 1 pc Al Rim |
| Brakes (front/rear) | 42CrMo4, hub mounted, 200 mm dia. Drilled |
| Chassis construction | CFRP Monocoque |
| Engine | LMC Ltd. D135 2X2 |
| Bore/stroke/cylinders/cc | Brushed DC motors |
| Fuel | Batteries |
| Fuel system | Lithium ion NMC |
| Max power/max torque | 58,08 kW, 148 Nm |
| Transmission | Single 520 chain |
| Differential | Quaife automatic torque biasing differential |
| Final drive | 4:1 |
The TU Darmstadt Racing Team e.V. decided to split efforts between combustion and electric project teams in 2010. The foundation for this year’s electric racer, the ‘epsilon-E’, is our CFRP monocoque from 2009.
Since there are no blueprints or even major guidelines to build an electric racecar yet, the project team had to start completely from scratch. Teamwork and the exchange of know-how between our two project teams are both very essential in the design process. We also worked very closely with our industry partners to develop a new and efficient drivetrain and energy storage. The car’s advanced electrical safety system has many automated features to keep the driver safe from overvoltage. For safety reasons, we chose to design a system with an overall voltage limit of 100V. Knowledge exchange is one of the main goals for us and for TU Darmstadt to participate in the FS events, and thus our members gathered much experience with today’s accumulator technology and electric motors in the development process. Our main goal for the ‘epsilon-E’ is to lay a solid development foundation for the coming years and to successfully compete in a FS event.
