Event data recorder: Difference between revisions

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Revision as of 17:13, 30 September 2023

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An '''event data recorder''' ('''EDR'''), more specifically '''motor vehicle event data recorder''' ('''MVEDR'''), similar to an [[accident data recorder]], (ADR) sometimes referred to informally as an automotive '''black box''' (by analogy with the common nickname for [[flight recorder]]s), is a device installed in some [[automobile]]s to record information related to [[traffic collision]]s. In the USA EDRs must meet federal standards, as described within the U.S. Code of Federal Regulations.<ref name="CFREDR">{{cite web|title=49 CFR 563.7|url=https://www.gpo.gov/fdsys/pkg/CFR-2010-title49-vol6/pdf/CFR-2010-title49-vol6-sec563-7.pdf|website=U.S. Government Printing Office|access-date=18 June 2017}}</ref><ref name="CFR 563">{{cite web |title=PART 563 - EVENT DATA RECORDERS |url=https://www.ecfr.gov/current/title-49/subtitle-B/chapter-V/part-563 |website=Code of Federal Regulations |access-date=17 August 2022}}</ref>

The term generally refers to a simple, tamper-proof, [[read-write memory]] device. The role of the EDR is limited compared to journey data recorders such as [[digital tachograph|digital tachographs]] in Europe or [[electronic logging device]] in the USA,<ref>{{Cite web|url=https://ec.europa.eu/transport/road_safety/specialist/knowledge/esave/esafety_measures_known_safety_effects/black_boxes_in_vehicle_data_recorders_en|title = Black boxes/ In-vehicle data recorders|date = 17 October 2016}}</ref> Whichwhich may also be referred to as a black box or in-vehicle data recorder.

In modern diesel [[truck]]s, EDRs are triggered by electronically sensed problems in the engine (often called faults), or a sudden change in wheel speed. One or more of these conditions may occur because of an accident. Information from these devices can be collected after a crash and analyzed to help determine what the vehicles were doing before, during and after the crash or event.