Get The Use Of Event Data Recorders In The Analysis Of Real ... - NHTSA - Nhtsa

Ninety-five percent of new vehicles have an onboard Event Data Recorder (EDR) that captures and stores vehicle data for several seconds before, during and after any crash where an airbag is triggered or there is an excessive rate of vehicle deceleration.

EDRs are devices which record information related to an "event." In the context of this site the event is defined as a highway vehicle crash. EDRs can be simple or complex in design, scope, and reach.

In modern diesel trucks, 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.

First, you need to know if your car has an EDR. You will get this information from the owner's manual. The device looks like a small box, the size of an iPod. It's usually placed under the front row seats, most often under the driver's seat or the central console, which is in between the front row seats.

Most modern passenger vehicles contain some form of Event Data Recorder (EDR). The EDR is typically found in the airbag control module, although it can be found in the powertrain module on some vehicles. These devices record vehicle and occupant information for a brief period of time leading up to and during a crash.

EDRs are devices which record information related to an "event." In the context of this site the event is defined as a highway vehicle crash.

The airbag control unit detects and evaluates the severity of an accident and then triggers the appropriate restraint systems. Information is supplied to the unit by as many as six crash sensors. This includes acceleration sensors and a rotational speed sensor.

A data logger or a data recorder is an electronic device or a computer program that continuously records data over time in relation to the location either using a built-in instrument or through an externally interfaced one.