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Development and Design of a New 18-Month-Old Child Dummy
Published May 23, 1994 by National Highway Traffic Safety Administration in United States
During 1993, an ad-hoc working group of the GRSP, addressing ECE Regulation 44 (Child restraint Systems), decided to propose the addition of "Group 0+ " to this regulation. This group of restraints concerns the maximum size/age/weight of children to be carried in a rearward facing child restraint system that can be held by a conventional 3-point belt system in front passenger car seats. The working group decided that for the evaluation of these types of CRSs, an 18-month-old dummy was needed. On this basis, the TNO Crash-Safety Research Center, together with Ogle Design, Ltd., started to work on a new child dummy: the TNO P1 1/2.
In this paper, the development and the design of this new prototype 18- month-old dummy are presented and the rationales behind its design are discussed. Based on regulatory and research applications of the P1 1/2, performance specifications are set up.
The most important specifications concern the anthropometry and biofidelity of the new dummy. In addition other characteristics (repeatability, reproducibility, durability, etc.) have been taken into account during the design process. Using the latest anthropometry data available, incorporating enhanced instrumentation and applying new materials to improve biofidelity, have provided an advanced child dummy design.