Seat belt pre-pretensioner effect on child-sized dummies during run-off-road events

Abstract

During both test setups, the activation of the pre-pretensioner resulted in reduced lateral excursion of the Q6, Q10, and HIII 5th percentile female due to the shoulder belt remaining on the shoulder and supporting the side of the lower torso. The results provide new insights into the potential benefits of using a pre-pretensioner to reduce kinematic responses during complex run-off-road events through supporting the seat belt to remain on the shoulder. This study addresses potential countermeasures to improve real-world protection of rear-seated children, and it provides a broader perspective including the influence of precrash kinematics.

Analysis of the influence of geometric difference among rear child occupants on injury outcomes

“…The CRS was generally installed in the rear, which could reduce child injuries to a large extent by restraining children sitting position as well as motor response. [32][33][34] Therefore, children were required to sit in the rear to improve the safety of child occupants. Although restraint systems played a significant role in reducing injury in children, the effect of differences in lower extremity geometric characteristics on the injury was focused on in the study.…”