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Influences of pre-crash braking induced dummy – Forward displacements on dummy behaviour during EuroNCAP frontal crashtest

Authors
  • Woitsch, Gernot
  • Sinz, Wolfgang1
  • 1 Vehicle Safety Institute, Graz University of Technology
Type
Published Article
Journal
Accident Analysis & Prevention
Publisher
Elsevier
Publication Date
Jan 01, 2013
Accepted Date
Oct 10, 2013
Volume
62
Pages
268–275
Identifiers
DOI: 10.1016/j.aap.2013.10.012
Source
Elsevier
Keywords
License
Unknown

Abstract

Combination of active and passive safety systems is a future key to further improvement in vehicle safety. Autonomous braking systems are able to reduce collision speeds, and therefore severity levels significantly. Passengers change their position due to pre-impact vehicle motion, a fact, which has not yet been considered in common crash tests. For this paper, finite elements simulations of crash tests were performed to show that forward displacements due to pre-crash braking do not necessarily increase dummy load levels. So the influence of different pre-crash scenarios, all leading to equal closing speeds in the crash phase, are considered in terms of vehicle motion (pitching, deceleration) and restraint system configurations (belt load limiter, pretensioner). The influence is evaluated by dummy loads as well as contact risk between the dummy and the interior.

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