In order to participate successfully in the competition, a thoughtful time schedule had to be created, where the design, manufacture and organisational tasks are well separated but in harmony and ready on time.
The chassis is a monocoque carbon fiber composite. The form of the body was created with a 3D design software. In order to optimise the drag coefficient of the body, we used Ansys CFX program to proceed with the aerodynamic simulations. The final form was milled out from XPS polystyrene with a CNC milling machine. The final shape and the adequate surface quality was reached with the traditional automotive paint technology. The body is made with the help of negative tools. We are using for that a pre-preg vacuum-process technology, which is one of the most recent and up-to-date technique in this field. As a result of it, the body is going to be sufficiently rigid and light.
The vehicle dynamic aspect of the suspension is a real challenge. As the vehicle is going to use the highway with 100-130 km/h speed, a finely tuned suspension and damper system are needed. Most of the suspension parts are also planned to be manufactured from carbon fibre. The vehicle is four-wheeled, one wheel driven, and it has a dual-circuit braking system.
Drive train, Electronics:
Choosing a high efficiency solar panel as the only energy source of the vehicle is a key issue. Therefore we would like to buy the best solar cells on the market, which is still affordable. Regarding to our plans, the solar cells are coming from the Sunpower manufacturer company. The compilation and lamination of the solar panel is also a very important part. The vehicle control electronics is a self-developed control unit. The BLDC engine will be located at the rear wheel behind the pilot. The engine was ordered from the Japanese Mitsuba factory, where the performance of the engine is 2 kW and it has an efficiency of 98 %. In order to test and set up the engine, we are using an electronics test bench.