Side‐impact simulation study to investigate the protection of older child occupants in lightweight vehicles

Holtz, Johannes; Tress, Michelle; Sobotzik, Christian; Johannsen, Heiko; Carroll, Jolyon; Müller, Steffen

Affiliations

¹Department of Automotive Engineering at Technische Universität Berlin

²TRL

³CSC Car Safety Consulting

⁴Accident Research Unit of Medizinische Hochschule Hannover

⁵Vehicle Homologation Engineer at Bristol Cars Ltd

Abstract and keywords

From 2016, the Euro NCAP side‐impact test will be conducted with Q6 and Q10 child dummies installed in the rear of the vehicle. The use of larger dummies is likely to produce a much more challenging test due to the generation of larger head excursions and the greater likelihood of body contact with the vehicle interior. This scenario is particularly applicable to lightweight vehicles due to the limited space available in the passenger compartment and the typically high crash pulses experienced by this vehicle type.

This paper investigates the challenges of designing a lightweight electric vehicle that provides sufficient protection for older child occupants in side‐impacts. Side‐impact simulations, based on the Euro NCAP 2016 side‐impact setup, were performed at 50 km/h in LS‐DYNA using the mobile deformable barrier (MDB) instead of the Advanced European‐MDB (AE‐MDB). The results were analysed to examine the influence of crash pulse and compartment intrusion on dummy injury severity, and also to address the trade‐off between pulse severity and intrusion level. The study is maintained by an accident data analysis with German In‐Depth Accident Study data and installation tests with Child restraint system (CRS).

Keywords: Lateral impact, occupant protection, numerical simulation, older child occupants, lightweight vehicle

Links

URL: http://www.ircobi.org/wordpress/downloads/irc16/pdf-files/41.pdf

Cited Works (4)

Year	Entry
2014	Stein M, Johannsen H, Holtz J, Core E, Zink L. Concept for lateral impact protection of a centred driver in a light electrical vehicle. In: Proceedings of the 2014 International IRCOBI Conference on the Biomechanics of Injury. September 10-12, 2014; Berlin, Germany.562-577.
2003	Otte D, Krettek C, Brunner H, Zwipp H. Scientific approach and methodology of a new in-depth-investigation study in germany so called GIDAS. In: Proceedings of the 18th International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 19-22, 2003; Nagoya, Japan.
2012	Tylko S, Bussières A. Responses of the Hybrid III 5th female and 10‐year‐old ATD seated in the rear seats of passenger vehicles in frontal crash tests. In: Proceedings of the 2012 International IRCOBI Conference on the Biomechanics of Injury. September 12-14, 2012; Dublin, Ireland.565-579.
2015	Eggers A, Schnottale B, Ott J. Sensitivity of Q10 and Q6 chest measurements to restraint and test parameters. In: Proceedings of the 24th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 8-11, 2015; Gothenburg, Sweden.