SYSTEM FOR STORING CLASH ACCELERATION DATA AT AN IGNITION OF AN AIRBAG COMPOSED OF AN EXTERNAL STORAGE DEVICE

摘要

PURPOSE: A clash acceleration data storage system is provided to precisely analyze the situations when an airbag is ignited or the airbag is not ignited at the clash of a vehicle and to secure the reliability about the efficiency of the airbag by comprising an external storage device for storing the clash acceleration data at the clash and an ignition message of the airbag. CONSTITUTION: In unfolding an airbag, clash acceleration data of a vehicle based on an ignited point of the airbag is detected by a clash acceleration detecting unit(10). An external FeRAM(Ferroelectric Random Access Memory)(20) is connected with an ECU(Electronic Control Unit)(1) of the airbag to record an ignition message according to the unfolding of the airbag through an SPI(Serial to Parallel Interface) and to store the acceleration clash data at the ignition of the airbag from the clash acceleration detecting unit.