Distance Corrected Capacitive Sensors for Advanced Air Bag Applications 2003-01-0508
The Federal Motor Vehicle Safety Standards No 208 now includes directives rendering the morphological estimation of passengers mandatory for Advanced Air Bag systems. The Dynamic Automatic Suppression System, which is part of the advanced air bag system uses both the morphological and positional information about the passenger to allow or prevent air bag deployment. Various solutions have been proposed to obtain these information by using for instance capacitive sensors. The response of this kind of sensors depends drastically on their distance from the passenger. This paper presents a method, now implemented in the BIOVOLUME technology developed by Faurecia in partnership with Hitachi computer products, to render those sensors independent from this distance.
Jérôme Lucas, Christophe Batis, Stéphane Holé, Thierry Ditchi, Claude Launay, Joaquim Da Silva, Hervé Dirant, Laurent Chabert, Marc Pajon
Laboratoire d'Electricité Générale, Ecole Supérieure de Physique et de Chimie Industrielles, Laboratoire des instruments et systèmes d'île de France, Université Pierre et Marie Curie, Hitachi Computer Products, Faurecia
SAE 2003 World Congress & Exhibition
Airbags and Safety Test Methodology-SP-1776, Recent Developments in Automotive Safety Technology-PT-119, SAE 2003 Transactions Journal of Passenger Cars - Mechanical Systems-V112-6