This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Effect of Pre-Impact Braking on the Performance of Child Restraint Systems in Real Life Accidents and Under Varying Test Conditions
Annotation ability available
Sector:
Language:
English
Abstract
This study compares a sample of approximately 900 real-life accidents with dynamic tests using a fully instrumented TNO P 3 dummy, in order to describe the effect of varying degrees of pre-impact braking. Altered test conditions, in particular the forward shift of seat belt anchorage points, are evaluated.
It is concluded that pre-impact braking has little effect on horizontal head excursion and chest deceleration. Pre-impact braking does however reduce neck loads, resultant head deceleration and HIC. Reducing the excessive head excursion observed in vehicles with extreme forward anchorages may well require replacing automotive seat belts with a new interface for child restraints.
Authors
Citation
Czernakowski, W. and Otte, D., "The Effect of Pre-Impact Braking on the Performance of Child Restraint Systems in Real Life Accidents and Under Varying Test Conditions," SAE Technical Paper 933097, 1993, https://doi.org/10.4271/933097.Also In
References
- ISO/TC 22/SC 12/WG 1 “Adult Belt Anchorage Positions” Dr. Peter Cloyns May 1992
- Weber K. Radovich V. “Performance Evaluation of Child Restraint Relative to Vehicle Lap-Belt Anchorage Location” SAE Paper 870 324
- Czernakowski W. “The Effects of Pre-Impact Braking on Dynamic Test Performance of Child Restraint Systems in Frontal Impacts N 1991 IRCOBI Conference September 1991 Berlin/Germany
- Borsig K. “Auswertung realer Unfälle im Hinblick auf die aktive Sicherheit” Diplomarbeit, Daimler-Dekra January 1981
- “The Abbreviated Injury Scale” 1985 AAAM
- Felsch B. Klanner W. “Experimentelle Untersuchung der Sicherheit von Autokindersitzen ADAC-Bericht
- Glaeser K.-P. “New Test Conditions for Child Restraint System” 36th STAPP Conference SAE Paper 922 516 November 1992
- Tarrière C. Troseille X. Carlsson G. “Initial Conclusions of an International Task Force on Child Restraining Systems” 13th ESV Conference Paris November 4-7 1991
- Langwieder K. Hummel T. Otte D. “Bedeutung und Biomechanik von Verletzungen der Halswirbelsaule bei gesicherten Kindern im PKW” Unfall- und Sicherheitsforschung Straßenverkehr Bergisch-Gladbach 1991