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Effectiveness of Real-Time Control for Active Restraint Systems in Frontal Crashes
Technical Paper
2004-31-0006
Sector:
Event:
Airbag 2004
Language:
English
Abstract
Modern restraints systems act in a passive way whilst providing
occupant protection across a range of crash and restraint
conditions. An increasing number of measurements are available to
determine the most appropriate deployment logic for a given crash
scenario. Once the deployment logic decision is made, the settings
of the restraint system components are fixed throughout the
duration of the crash. In most cases, restraint system components
are developed around legislated high-speed barrier impact
conditions that focus on the reduction of AIS 3+ injury levels
(threat to life).
In this paper, the effectiveness of real-time controlled
restraint systems is discussed. Such systems, also called active
restraint systems, are manipulated throughout the duration of the
crash event, based on measurements of the occupant response. This
requires a new family of restraint system components, actuators,
sensors and control algorithms. This paper quantifies the benefits
of such an approach using numerical simulations with MADYMO and
MATLAB software.