Verification of eCall Unit Parameters to Describe the Traffic Accident Seriousness

Abstract: The article deals with parameter verification for an eCall unit Black box type that can be further used to estimate the consequences of a traffic accident. As the unit is mainly designed to be installed into older types of vehicles, it only uses an internal accelerometer located on a printed circuit to identify the moment of collision, but this can affect the resulting acceleration measurement. A series of measurements is described in the article (crash test and a test on acceleration unit) during which the acceleration signal from an eCall unit is compared with the external accelerometer signal and the correlation analysis of both signals was performed afterwards.