Abstract
The German car manufacturer Porsche presents a door-based side-airbag system combined with an energy-absorbing door lining called POSIP, i.e. POrsche Side Impact Protection system. The side-airbag module includes a totally new 30 l two-chamber airbag which covers a large part of the upper door area. This side airbag has been designed to reduce both the head and thorax loads also in side pole impacts. For the first time, a standard head protection system is offered which can be installed regardless of the roof design. The POSIP system also protects the occupants of convertibles or of cars with novel roof concepts when involved in side impact pole crashes.