Seat Belt Effectiveness in Rollovers

In these projects we continue and build upon previous research studying various production three-point restraint systems and resulting vertical excursion on restrained inverted occupants. Vertical excursions are evaluated for various sized occupants restrained by both production vehicle belt systems as well as systems incorporating alternative designs. We have shown vertical excursions to be reduced by an average of 77% by optimizing belt geometry and adding belt pre-tensioning.