The Avalanche Protection System consists of two components: an integral helmet and an airbag. The airbag is unusually small, but functions as a placeholder in an avalanche. It is filled with air by the user before driving: It also serves as protection in the event of falls while the vehicle is in motion. In the event of an avalanche and rising pressure, a valve opens and releases air over a specific period of time. When the avalanche comes to a standstill, it leaves enough free space to be able to breathe. Initially, the avalanche does not breathe through the filters, which would otherwise lead to saturation at an early stage. Only the pressure of the snow pushes the filter elements inwards and changes the air channel. This system does not require any electronics or human action.

Lukas Munser /
Prof. Frank Zebner

Diploma 2017