The effect of occupant protection by controlling airbag and seatbelt

Iyota, Teru; Ishikawa, Toshihiro

Recent research revealed that greater proportion of heavier male occupants and lighter female occupants sustain serious injuries in frontal crash. The cause is thought that the frontal occupant restraint systems are designed to minimize the injury risk for 50th percentile occupant only, and its characteristics are not adjustable. In this study, vent hole area of the airbag and load limiter force of the seat belt were controlled according to occupant sizes, and the effect of occupant protection for different occupant sizes were evaluated.

MADYMO 3D was used in this analysis, and evaluation was performed not only in the 5th, 50th, and 95th percentile occupant size dummies, but also in the various physiques occupant size dummies. The various physiques occupant size dummies were created using the physique scaling application of MADYMO.

As a result, all size of occupant dummies, from 5th to 95th percentile occupant dummies were evaluated, and injury severity of those occupant dummies were described.

Year

Entry

2001

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2001

Holding PN, Chinn BP, Happian-Smith J. An evaluation of the benefits of active restraint systems in frontal impacts through computer modelling and dynamic testing. In: Proceedings of the 17th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 4-7, 2001; Amsterdam, The Netherlands.

2001

Summers L, Hollowell WT, Prasad A. Analysis of occupant protection provided to 50th percentile male dummies sitting mid-track and 5th percentile female dummies sitting full-forward in crash tests of paired vehicles with redesigned air bag systems. In: Proceedings of the 17th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 4-7, 2001; Amsterdam, The Netherlands.

2001

Clute G. Potentials of adaptive load limitation presentation and system validation of the adaptive load limiter. In: Proceedings of the 17th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 4-7, 2001; Amsterdam, The Netherlands.

Year

Entry

2005

Neale M, Couper G, Bosch-Rekveldt M, Brandse J. A numerical investigation into the effectiveness of "smart" restraint systems in mitigating injury risk under "real world" accident conditions. In: Proceedings of the 19th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 6-9, 2005; Washington, DC.

2005

Ridella SA, McCann MJ, Turnbull RC, Bayley GS. Development of restraint systems with considerations for equality of injury risk. In: Proceedings of the 19th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 6-9, 2005; Washington, DC.

2009

van der Laan E, de Jager B, Veldpaus F, Steinbuch M, van Nunen E, Willemsen D. Continuous restraint control systems: safety improvement for various occupants. In: Proceedings of the 21st International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 15-18, 2009; Stuttgart, Germany.