![]() ![]() However, these “Black Boxes” were not originally intended to record data, and the idea of actually capturing and preserving the data was an afterthought. ![]() To help them monitor the performance of their airbag systems in the field, a number of manufacturers installed Event Data Recorders, “Black Boxes,” in some of their vehicles. However, understanding that crash tests cannot replicate every real world event, several vehicle manufacturers determined to track the performance of their systems in the field by monitoring selected vehicle parameters of data during crash events. These profiles are developed using data gathered from crash tests. In general, the airbag in a car deploys in response to vehicle decelerations which fit a certain pre-set profile. The purpose of this article is to acquaint the practitioner with the limitations of this data. Now recognized by law enforcement agencies, experts and even courts as reliable sources of data relative to vehicle speed, brake application, seat-belt use, throttle position, etc., the use of this data should nonetheless be approached with caution as its reliability is far from guaranteed. Dubbed “Black Boxes,” after the devices used on airplanes to record in-flight data for post crash analysis, these data recorders were included to help vehicle manufacturers track the performance of their airbag systems in the field. Starting in the late 1990s certain airbag-equipped vehicles were equipped with event data recorders (EDRs). ![]()
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