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Pulse Sensitivity of a Child Restraint System, Near-Side Impact Fixture
Technical Paper
2014-01-0538
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The National Highway Traffic Safety Administration (NHTSA) has utilized a two part sled fixture to evaluate a near side test protocol for child restraint systems (CRS). The test was designed to impact the CRS with a fixed door at nearly 20 mph. This paper examines the affects of various fixture parameters on the acceleration and velocity profiles of the two part system during the impact event. It was determined that the kinematic time histories are sensitive to crush energy dissipation (as evaluated with variance in aluminum honeycomb volume) and fixture weight. It was also determined that payload weight, impact speed, and impact plane alignment have a small effect on the acceleration and velocity profiles. Even though the kinematics of the secondary carriage was small with the change in the impact plane alignment, it was determined that the CRS utilized in the standard test would have a 23% reduction in impact energy when compared to the CRS with the impact planes aligned.
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Citation
Brelin-Fornari, J. and Janca, S., "Pulse Sensitivity of a Child Restraint System, Near-Side Impact Fixture," SAE Technical Paper 2014-01-0538, 2014, https://doi.org/10.4271/2014-01-0538.Also In
References
- Sullivan LK , and Louden AE 2009 NHTSA's Initial Evaluation of Child Side Impact Test Procedures ESV Paper No. 09-0539
- Sullivan LK , Louden AE , and Echemendia CG 2011 NHTSA's Evaluation of a Potential Child Side Impact Test Procedure ESV Paper No. 11-0227
- Ribai , P 2010 Correlation of Deceleration Sled to HYGE Sled for Side Impact Child Seat Testing MS thesis Kettering University
- Brelin-Fornari , J. and Janca , S. Secondary Final Report on the Development of a Side Impact Test Procedure for Child Restraint Systems Using a Deceleration Sled NHTSA Contract Number: DTNH22-11-C-00204. Report Number: DOT_SIDE_213 August 2013