Page 10 - GODR SR EN - GODR_v7-22.01
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B/ ON BOARD SAFETY DEVICES

               For many years, car makers try to improve the safety systems performances on board. The aim is to offer much better safety conditions to the users, in
               case of a road accident. Safety on board is having 3 different dimensions:
     véhicules



     les

     sur                                      Primaire ou active : avant le choc   ABS, ESP...
                                                                       -
     Généralités
                                                      Pas de danger pour les SP




                                                  Sécurité embarquée








                                 Secondaire ou passive:                 Tertiaire : Favorise l’intervention après le choc
                          Au moment du choc /  Airbags, Prétensionneurs    système d’alerte automatique   Pas de danger
                                  /   Danger pour les SP                            pour les SP







                                                                                              http://youtu.be/O1S0NXi2sEg





               Airbags

               ECU (Electronic Control Unit), is an electronic system which controls all the pyrotechnic devices participating to secondary/passive safety.
     GUIDE OPÉRATIONNEL DÉPARTEMENTAL DE RÉFÉRENCE / INTERVENTIONS D’URGENCE SUR LES VÉHICULES



                                  In order to prevent airbags inopportune action, it is forbidden to touch or damage the ECU.



               There are 3 categories of airbags:


            Those armed with a gas generator (hydrogen and oxy- Those armed with an expansive cartridge having a solid  Those armed with a hybrid system (combination of a gas
            gen)                               shell and lozenges or powder inside, creating a gas   and solid parts).
                                               (driver or passenger’s airbags).






















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