Cars and lightning. The effect of a lightning discharge in the vicinity of an on-board communication system
SZELAG ; KLINGLER ; MARECHAL ; HEDDEBAUT ; BERBINEAU
Type de document
ARTICLE A COMITE DE LECTURE NON REPERTORIE DANS BDI (ACLN)
Langue
francais
Auteur
SZELAG ; KLINGLER ; MARECHAL ; HEDDEBAUT ; BERBINEAU
Résumé / Abstract
An increasing amount of complex electronic systems appear in today's automobiles. Such systems allow the automatisation of mechanical functions and contribute to driving aid. The implementation of a communication network interconnecting all these electronic functions seems necessary. In such a situation vehicles can become more and more susceptible to perturbations of a wide variety of origins the effect of which is to reduce their levels of reliability, availability and safety. Of these perturbations, lightning discharges are natural in origin acting as intense electromagnetic sources which it is difficult to reproduce in a laboratory. In order to study the impact of lightning discharges on an on-board electronic system, a car was equipped with communication modules managed by microcontrollers and interconnected by a hamess. During the summer of 1990 this vehicle was taken to the lightning research station of Saint Privat d'Allier in France. A number of measurements were recorded during each lightning discharge. Electromagnetic coupling on the communication hamess was measured and the operation of the communication modules was monitored. The various recorded signals were then numerically processed. Tests were also carried out by placing the same network under a stripline tem cell in order to try to obtain the same malfunction events encountered during the lightning campaign.
Source
RTS : Recherche transports sécurité, num. n9 English Issue, p79-94 p.
Editeur
Institut National de Recherche sur les Transports et Leur Sécurité - INRETS
