Patent ID: 8991857
Filing Date: 2015-03-31
Classification: B60R

Abstract:
1. An airbag system for protection of an occupant of a motor vehicle, comprising an inflatable airbag with a main chamber forming a protective cushion for the occupant, whereby the main chamber has an impact surface with which the occupant can come in contact, and the main chamber having a support surface with which the main chamber can be supported on an interior equipment device of the motor vehicle, and further comprising a secondary chamber forming a support cushion for the main chamber, whereby the main chamber has a greater volume than that of the secondary chamber, and an inflation device for the airbag, the airbag system adapted to be arranged on the interior equipment device in such a manner that the main chamber can exit from an exit opening on the interior equipment device, on which the support surface of the main chamber can also be supported, the secondary chamber is formed between the support surface and the interior equipment device, and the inflation device includes a first gas generator for the main chamber and a second gas generator for the secondary chamber, whereby both of the first and second gas generators or only the first gas generator can be selectively controlled for inflating the main chamber, wherein the inflatable airbag, when installed within the motor vehicle defining a horizontal line generally parallel to a longitudinal axis of the motor vehicle and passing through the interior equipment device of the motor vehicle, the main chamber having a first lower portion thereof below the horizontal line when only the main chamber is inflated by the first gas generator, and having a second lower portion, larger in volume than the first lower portion below the horizontal line when the main chamber and the secondary chamber are respectively inflated by the first and the second gas generators.