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Development of a Sled Side Impact Test for Child Restraint Systems
Technical Paper
986209
Sector:
Language:
English
Abstract
Currently the majority of Child Restraint Systems (CRS) in the
UK are approved to ECE Regulation 44 Amendment 03. This focuses on
the crash performance of the CRS under frontal and rear impacts and
does not include a sled side impact test.
Although standards from Australia and New Zealand have for some
time contained such a test, they do not include an element
reproducing the effects of intrusion. Intrusion is a major factor
in serious and fatal injuries to children in CRS. This paper
describes a research program conducted to develop a simple side
impact test which attempts to reproduce the effects of side
structure intrusion on a CRS installed in a car on the struck side.
A hinged door was mounted on the Middlesex University test sled,
which, when opened contacted a CRS restrained on the ECE R 44 test
seat mounted laterally on the sled. The door was opened under
impact conditions when it struck an auxiliary impactor at the
beginning of the sled deceleration phase. The chest and head
response of ATDs restrained in current and prototype CRS was
measured. These were compared with full-car side impacts conducted
at TRL. The results suggested that the peak response of the ATD was
representative of the car/barrier impacts but the energy input to
the CRS as a function of time needs more development.