Single stage dual chambered passenger airbag

摘要

An airbag includes at least one panel defining an interior of the airbag, and a divider positioned in the interior so as to divide the interior into a first chamber and a second chamber. A first valve assembly is operatively coupled to the divider for controlling the gas flow between the first chamber and the second chamber. A second valve assembly is fixed within the first chamber and fluidly communicates with an exterior of the airbag. The second valve assembly is operably dependent on the first valve assembly, thereby dynamically controlling the inflation profile of the airbag.

主权项

1. An airbag comprising:
at least one panel defining an interior of the airbag, said panel containing one or more venting orifices, and a divider positioned in the interior so as to divide the interior into an upper chamber and a lower chamber; a first valve mechanism operatively coupled to the divider for restricting, but also permitting, a flow of gases from the lower chamber into the upper chamber, the first valve mechanism being structured such that an actuation response time of the valve mechanism in attenuating or impeding gas flow from the lower chamber into the upper chamber is proportional to any pressure increase of the lower chamber relative to the pressure in the upper chamber; and a second valve assembly operably configured to the upper chamber, said second valve assembly configured to attenuate or occlude fluid flow through said one or more venting orifices upon substantial pressurization of the upper chamber.