After “Escher” comes “Mujinga”

In the summer of 2017, Swissloop made it to the vacuum tube when its first prototype called “Escher” placed third. The students have developed a completely new transport capsule for the  competition last year (2018): a three-and-a-half metre long white and blue pod called “Mujinga”. The students presented it to the public for the first time on a 150-metre long test track in the Innovation Park Zurich. This transport capsule is powered by four electric motors. Together they generate over 540 PS, approximately two-and-a-half times the capacity of a Bugatti sports car. The energy comes from two batteries providing a total of 700 volts and a capacity in excess of 1,500 iPhone batteries. The new pod is named after the Swiss athlete Mujinga Kambundji. She is Switzerland’s fastest women.
The battery with its four inverters and the main PCB are located in between the wheel pairs.
The central element of our Pod is the carbon fiber chassis onto which all other subsystems are mounted.
To create larger wheel friction to achieve the needed acceleration, a clamping system is used that pushes the Pod down on the track.
The EMRAX motors which are located inside each wheel are driven by power inverters. They deliver enough torque to accelerate our Pod to 140 m/s.
To decelerate the Pod, two hydraulic brakes in the back of the Pod are used.
To maintain lateral stability the Pod has four stability wheels that absorb the shocks from the track and also limit the horizontal displacement.
In order to make the Pod lighter, the shell is made of carbon fiber. The goal of the shell design is to achieve a sleek, simplistic but most importantly a futuristic shape. The viewer should get the feeling as if a product from future has arrived. It will protect the Pod from outside influences and make it more aerodynamic. The shell will consists of six layers of multidirectional carbon fiber, giving it a thickness of 3 mm.

The Making of Mujinga