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Seat Performance and Occupant Moving Out of the Shoulder Belt in ABTS (All-Belts-to-Seat) in Rear Impacts
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 02, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
This study examined occupant and seat responses with ABTS (all-belts-to-seat) in rear end collisions. Some have claimed improved ABTS seat performance and retention in rear impacts than conventional seats. ABTS seats tend to have higher ultimate yield strengths than conventional yielding seats. Most ABTS seats have asymmetric seatback stiffness due to the need for additional structure on one side of the seat to support shoulder belt loads. Many designs use a single-side recliner and single stanchion that anchors the D-ring. This asymmetry results in twisting of the seatback in severe rear impacts. Seatback twist can allow the occupant to move away from the shoulder belt. Rearward pull tests on ABTS seats also demonstrates seatback twisting and in some cases large drops in load during the test. The added strength and stiffness of ABTS seats lead to designs that are vulnerable to sudden force drops from separated parts.
CitationWhite, S., Viano, D., and Burnett, R., "Seat Performance and Occupant Moving Out of the Shoulder Belt in ABTS (All-Belts-to-Seat) in Rear Impacts," SAE Technical Paper 2019-01-1031, 2019, https://doi.org/10.4271/2019-01-1031.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
- Toomey, D.E., Marth, D.R., Ballard, W.G., Belwafa, J.E. et al., “The Influence of Body Mounted Shoulder Seat Belt Anchor (D-Ring) Displacement During Dynamic Vehicle-to-Ground Impacts,” SAE Technical Paper 2015-01-1756, 2015, doi:10.4271/2015-01-1756.
- Viano, D.C. and White, S.D., “Seat Strength in Rear Body Block Tests, Traffic Injury Prevention,” 17(5):502-507, 2016.
- Fay PA, Raimondo S, Frampton R, “Multiple Impact Crashed - Consequences for Occupant Protection Measures,” in Proceedings of the IRCOBI Conference on the Biomechanics of Impact, Isle of Man, October 10-12, 2001.
- Viano, D.C., Parental, C.P., Burnett, R.A., and Prasad, P., “Occupant Reponses in Conventional and ABTS Seats in High-Speed Rear Sled Tests,” Traffic Injury Prevention 19(1):54-59, 2018.
- Viano, D.C. and Parenteau, C.P., “BioRID Dummy Responses in Matched ABTS and Conventional Seats Tests on the IIHS Rear Sled,” Traffic Injury Prevention 12:339-346, 2011.
- Viano, D.C., Parenteau, C.P., Burnett, R.A., and James, M., “Influence of Seating Position on Dummy Responses with ABTS Seats in Severe Rear Impacts,” SAE Technical Paper 2009-01-0250, 2009, doi:10.4271/2009-01-0250.
- Viano, D.C. and Parenteau, C.S., “Severe Injury in Multiple Impacts: Analysis of 1997-2015 NASS-CDS,” Traffic Injury Prevention 19(5):501-505, 2018.
- Horsch, J., “Evaluation of Occupant Protection from Reponses Measured in Laboratory Tests,” SAE Technical Paper 870222, 1987, doi:10.4271/870222.
- Padmanaban, J., Burnett, R.A., and Levitt, A., “Relationship Between Seatback Stiffness/Strength and Risk of Serious/Fatal Injury in Rear-Impact Crashes,” SAE Technical Paper 2009-01-1201, 2009, doi:10.4271/2009-01-1201.