SAE WCX 2019 – High Severity Frontal Oblique Offset Crash Tests

Title: Performance of Event Data Recorders Found in Toyota Airbag Control Modules in High Severity Frontal Oblique Offset Crash Tests

Authors: William Bortles, and Ryan Hostetler

Published by: SAE International 


This paper presents an in-depth analysis of the performance of Event Data Recorders (EDRs) found in the Airbag Control Modules (ACMs), as tested in support of the National Highway Traffic Safety Administration’s Frontal Oblique Offset Program. Previous studies have examined EDR performance in high severity full-frontal barrier crash tests and moving deformable barrier side impact tests. This paper presents data from a high severity oblique frontal impact test in which the vehicle was struck by a moving deformable barrier. This paper examines the results of EDR data downloaded from two 2015 model year Toyota Highlanders, and the results of EDR reported change in velocity (delta-v), to vehicle mounted accelerometers and reference instrumentation. This paper will analyze EDR performance in reporting:

  • Seatbelt buckle status,
  • Occupant Size Classification, Front Passenger,
  • Airbag and seatbelt pretensioner deployment time(s),
  • Longitudinal delta-v, and
  • Lateral acceleration/crash pulse.

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