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Evaluation of General Motors Event Data Recorder Performance in Semi-Trailer Rear Underride Collisions
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 14, 2020 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
The objective of this study was to analyze the validity of airbag control module data in semi-trailer rear underride collisions. These impacts involve unusual collision dynamics, including long crash pulses and minimal bumper engagement . For this study, publicly available data from 16 semi-trailer underride guard crash tests performed by the Insurance Institute for Highway Safety (IIHS) were used to form conclusions about the accuracy of General Motors airbag control module (ACM) delta-V (ΔV) data in a semi-trailer rear underride scenario. These tests all utilized a 2009 or 2010 Chevrolet Malibu impacting a stationary 48’ or 53’ semi-trailer at a speed of 35 mph. Nine tests were fully overlapped collisions, six were 30% overlapped, and one was 50% overlapped . The IIHS test vehicles were equipped with calibrated 10000 Hz accelerometer units. Event Data Recorder (EDR) data imaged post-accident from the test vehicles were compared to the reference IIHS data. For each test, root mean square error (RMSE), the percent error over time, and the difference between the EDR ΔV and the IIHS ΔV, was quantified, plotted, and related to crash pulse. This analysis revealed a general trend of decreasing EDR ΔV parity with an increasing crash pulse duration, although overall differences remained low for most tests. Eleven tests, all with airbag deployments, converged towards an average of 3.3% error at the end of the crash pulse, which were 150-270 ms. EDR recorded ΔVs were in the range of 29.8-39.9 mph. Five tests, three of which were non-deployments, diverged to higher percentage error averaging 12.7% at an EDR ΔV of 31.8-40.0 mph. All higher error tests were 30% overlapped and had the highest crash pulse durations of 240-300 ms. One fully overlapped test generated highly unusual EDR data due to failure of the rear underride guard mounting bolts and plates.
CitationFamiglietti, N., Hoang, R., Fatzinger, E., and Landerville, J., "Evaluation of General Motors Event Data Recorder Performance in Semi-Trailer Rear Underride Collisions," SAE Technical Paper 2020-01-1328, 2020, https://doi.org/10.4271/2020-01-1328.
Data Sets - Support Documents
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- Marine, M., Wirth, J., Peters, B., and Thomas, T. , “Override/Underride Crush Energy: Results from Vertically Offset Barrier Impacts,” SAE Technical Paper 2005-01-1202, 2005, https://doi.org/10.4271/2005-01-1202.
- Insurance Institute for Highway Safety , “Semi-Trailer Underride Test Protocol (Ver. I),” Ruckersville, VA, 2016.
- Bortles, W., Biever, W., Carter, N., and Smith, C. , “A Compendium of Passenger Vehicle Event Data Recorder Literature and Analysis of Validation Studies,” SAE Technical Paper 2016-01-1497, 2016, https://doi.org/10.4271/2016-01-1497.
- Blower, D. and Campbell, K. , “Underride in Fatal Rear-End Truck Crashes,” SAE Technical Paper 2000-01-3521, 2000, https://doi.org/10.4271/2000-01-3521.
- Tavakoli, M. and George, V. , “Characteristics of Trailer Rear Impact Guard - Interdependence of Guard Strength, Energy Absorption, Occupant Acceleration Forces and Passenger Compartment Intrusion,” SAE Technical Paper 2008-01-0155, 2008, https://doi.org/10.4271/2008-01-0155.
- Boucher, D. and Davis, D.B.T. , “Trailer Underride Protection - A Canadian Perspective,” SAE Technical Paper 2000-01-3522, 2000, https://doi.org/10.4271/2000-01-3522.
- German, A., Comeau, J.-L., Monk, B., McClafferty, K., Tiessen, P., and Chan, J. , “The Use of Event Data Recorders in the Analysis of Real World Crashes,” in Proceedings of the Canadian Multidisciplinary Road Safety Conference XII, London, Ontario, June 10-13, 2001.
- Comeau, J.-L., German, A., and Floyd, D. , “Comparison of Crash Pulse Data from Motor Vehicle Event Data Recorders and Laboratory Instrumentation,” in Proceedings of the Canadian Multidisciplinary Road Safety Conference XIV, Ottawa, Ontario, June 27-30, 2004.
- Chidester, A., Hinch, J., Mercer, T.C., and Schultz, K.S. , “Recording Automotive Crash Event Data,” in Proceedings of the International Symposium on Transportation Recorders, Arlington, Virginia, May 3-5, 1999.
- McClafferty, K., Green, R., Tiessen, P., Brown, J., German, A., and Comeau, J.L. , “A Comparison of Real World Frontal Impacts and Staged Crash Tests,” in Proceedings of the Canadian Multidisciplinary Road Safety Conference XVII, Montréal, Québec, June 3-6, 2007.
- National Highway Traffic Safety Administration , Department of Transportation, “49 CFR Ch. V Part 563 - Event Data Recorders,” § 563.8, October 1, 2011.
- Rader, R. , All Major Trailer Makers Earn IIHS Award for Good Underride Protection (Insurance Institute for Highway Safety, Highway Loss Data Institute, 2018).
- Insurance Institute for Highway Safety , “Moderate Overlap Test Protocol (Ver. XVIII),” Ruckersville, VA, July 2017.
- Ruth, R. , “Chevrolet Event Data Recorder Information Availability CDR Software Level 17.10,” December 2018.
- ALLDATA , Computer Software (Elk Grove, CA: ALLDATA LLC, 2019).