A Self-Adapting Passenger Airbag for the USNCAP

A dual-chambered passenger airbag was developed for the 2011 USNCAP to minimize neck loading for the belted 5^th female dummy while restraining the unbelted 50^th dummy for FMVSS208. This unique, patented design adaptively controlled venting between chambers based on occupant stature. A patented pressure-responsive vent on the second chamber permitted aspiration into the second chamber before a delayed outflow to the environment. The delayed flow through the pressure-responsive vent from the second chamber acted like a pressure-limiting membrane vent to advantageously reduce the injury assessment values for the HIC and the Nij for the 5^th female dummy.