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Event Data Recorder (EDR) What is EDR ? Event data recorder (EDR) means a functionality to record data captured prior to, during, and after an Event. example : event means any event like crash ,deployment of air bag, or sudden break ect . Event Data Recorder (EDR) will record the set of sensor data during the event or after or prior event.Set Senor data will vary from one event to other event. Purpose of EDR? Storage of specified data in non volatile memory in order to analyse and reconstruct events (no deployment/ deployment events) and also required by Regulation like NHTSA. Analysis necessary for liability reasons concerning the car manufacturer or restraint system supplier or to solve statement contradictions of accident opponents. Collection of statistical crash data for effective crash investigations and   analysis of safety equipment performance to improve traffic safety. Event Definitions: Event Start (T0) : Point at which first algorithm is active. E

Vehicle Safety System: Vehicle Safety System will helps to driver while driving and time when vehicle got crashed. 2 type of Vehicle Safety system 1.Active Safety 2.Passive Safety   Active Safety: Passive Safety

Airbag in Automotive The airbag is the one type of Vehicle Safety device.The airbag will help and save driver and passenger when vehicle crashed. Vehicle Safety System: Vehicle Safety System will helps to driver while driving and time when vehicle got crashed. 2 type of Vehicle Safety system 1.Active Safety 2.Passive Safety Airbag will come Under active safety system Airbag is the device connected with sensor which will always  monitor Crash of vehicle and precrash of vehicle, when crash is happen then  deploy the airbag. Deploying the airbag is nothing but fill the air in the airbag.     Cars are designed with a rigid, strong frame enclosing the occupants, with crumple zones in the front.     Force reduction and redistribution is accomplished inside the passenger compartment through the use of Airbags(irreversible restraints) and Seat-Belts and (reversible restraints) and rear.  It's easy to build crumple zones into a large v