This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Behavior of Toyota Airbag Control Modules Exposed to Low and Mid-Severity Collision Pulses
Technical Paper
2017-01-1438
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The repeatability and accuracy of front and rear speed changes reported by Toyota’s Airbag Control Modules (ACMs) have been previously characterized for low-severity collisions simulated on a linear sled. The goals of the present study are (i) to determine the accuracy and repeatability of Toyota ACMs in mid-severity crashes, and (ii) to validate the assumption that ACMs function similarly for idealized sled pulses and full-scale vehicle-to-barrier and vehicle-to-vehicle crashes. We exposed three Toyota Corollas to a series of full-scale aligned frontal and rear-end crash tests with speed changes (ΔV) of 4 to 12 km/h. We then characterized the response of another 16 isolated Toyota ACMs from three vehicle models (Corolla, Prius and Camry) and 3 generations (Gen 1, 2 and 3) using idealized sled pulses and replicated vehicle-to-vehicle and vehicle-to-barrier pulses in both frontal and rear-end crashes (ΔV = 9 to 17 km/h). The ACM-reported speed changes were compared to reference speed changes calculated by integrating an accelerometer signal. The pooled data for reference speed change were then linearly regressed against the following predictors: ACM-reported speed change, peak acceleration, vehicle type, collision type and ACM generation. We found that all of the independent variables had a significant effect in at least one of the models we considered, although ACM-reported speed change and ACM generation had the largest effects on the outcome. We found significant differences between the full-scale collisions and the sled pulses for frontal impacts, but these differences were small (<0.2 km/h) compared to the other variables. This study furthers our understanding of how Toyota ACMs behave in low and mid-severity collisions.
Recommended Content
Authors
- Felix Lee - MEA Forensic Engineers & Scientists
- Peter Xing - MEA Forensic Engineers & Scientists
- Mike Yang - MEA Forensic Engineers & Scientists
- Janice Lee - MEA Forensic Engineers & Scientists
- Craig Wilkinson - MEA Forensic Engineers & Scientists
- Gunter P. Siegmund - MEA Forensic Engineers & Scientists
Citation
Lee, F., Xing, P., Yang, M., Lee, J. et al., "Behavior of Toyota Airbag Control Modules Exposed to Low and Mid-Severity Collision Pulses," SAE Technical Paper 2017-01-1438, 2017, https://doi.org/10.4271/2017-01-1438.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 | ||
Unnamed Dataset 5 | ||
Unnamed Dataset 6 | ||
Unnamed Dataset 7 | ||
Unnamed Dataset 8 | ||
Unnamed Dataset 9 | ||
Unnamed Dataset 10 | ||
Unnamed Dataset 11 | ||
Unnamed Dataset 12 | ||
Unnamed Dataset 13 | ||
Unnamed Dataset 14 | ||
Unnamed Dataset 15 |
Also In
References
- Chidester , A. , Hinch , J. , Mercer , T. , and Schultz , K. Recording Automotive Crash Event Data Proceedings of the International Symposium on Transportation Recorders Arlington, Virginia 1999
- Niehoff , P. , Gabler , H.C. , Brophy , J. , Chidester , C. , Hinch , J. , and Ragland , C. Evaluation of Event Data Recorders in Full Systems Crash Tests Proceedings of the Nineteenth International Conference on Enhanced Safety of Vehicles Washington, DC June 2005
- Comeau , J-L. , Dalmotas , D.J. , and German , A. Event Data Recorders in Toyota Vehicles Proceedings of the 21st Canadian Multidisciplinary Road Safety Conference Halifax, Nova Scotia May 8-11, 2011
- Tsoi , A. , Hinch , J. , Ruth , R. , and Gabler , H. Validation of Event Data Recorders in High Severity Full-Frontal Crash Tests SAE Int. J. Trans. Safety 1 1 76 99 2013 10.4271/2013-01-1265
- Lawrence , J. , Wilkinson , C. , King , D. , Heinrichs , B. et al. The Accuracy and Sensitivity of Event Data Recorders in Low-Speed Collisions SAE Technical Paper 2002-01-0679 2002 10.4271/2002-01-0679
- Wilkinson , C. , Lawrence , J. , Nelson , T. , and Bowler , J. The Accuracy and Sensitivity of 2005 to 2008 Toyota Corolla Event Data Recorders in Low-Speed Collisions SAE Int. J. Trans. Safety 1 2 420 429 2013 10.4271/2013-01-1268
- Correia J. , Iladis K. , McCarron E. , Smolej M. Utilizing data from automotive event data recorders Proceeding of the Canadian Multidisciplinary Road Safety Conference XII London, ON 2001
- Wilkinson , C. , Lawrence , J. , Heinrichs , B. , and King , D. The Accuracy and Sensitivity of 2003 and 2004 General Motors Event Data Recorders in Low-Speed Barrier and Vehicle Collisions SAE Technical Paper 2005-01-1190 2005 10.4271/2005-01-1190
- NHTSA 49 CFR Part 563, Event Data Recorder Final Rule [Docket No. NHTSA-2008 0004] RIN 2127-AK72 January 2008
- Xing , P. , Lee , F. , Flynn , T. , Wilkinson , C. et al. Comparison of the Accuracy and Sensitivity of Generation 1, 2 and 3 Toyota Event Data Recorders in Low-Speed Collisions SAE Int. J. Trans. Safety 4 1 172 186 2016 10.4271/2016-01-1494
- Lawrence , J. , Wilkinson , C. , Heinrichs , B. , and Siegmund , G. The Accuracy of Pre-Crash Speed Captured by Event Data Recorders SAE Technical Paper 2003-01-0889 2003 10.4271/2003-01-0889
- Siegmund , G. , King , D. , and Montgomery , D. Using Barrier Impact Data to Determine Speed Change in Aligned, Low-Speed, Vehicle-to-Vehicle Collisions SAE Technical Paper 960887 1996 10.4271/960887
- SAE International Surface Vehicle Recommended Practice Instrumentation for Impact Test-Part 1-Electronic Instrumentation SAE Standard J211-1 July 2007