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Simulating the Effect of Collision-Related Power Loss on the Event Data Recorders of Heavy Trucks
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 12, 2010 by SAE International in United States
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Event Data Recorder (EDR) technology has been incorporated into the Electronic Control Modules (ECMs) of many on-highway heavy trucks. One benefit of this technology is its applicability to vehicle collision investigation and reconstruction ( Goebelbecker & Ferrone, 2000 ; van Nooten & Hrycay, 2005 ). However, collisions that cause extensive damage to the truck may cause a loss of electrical power to the ECM, which might interrupt the data storage process. This research is an attempt to determine the effects of power loss on heavy vehicle ECMs 1 , and the associated effects on data collected by the EDR function. Controlled testing was conducted with Detroit Diesel, Mercedes, Mack, Cummins, and Caterpillar engines, and power failures were created by artificially interrupting power between the vehicle's battery and ECM at predetermined intervals. EDR data from the test vehicles were extracted after each test, and the presence or absence of new data was examined. New data were compared to an independent measure of the vehicle's kinematics during the test run. The tests demonstrated that each ECM/EDR combination had different requirements for uninterrupted power supply and that several of the combinations required other inputs, such as cycling the key off or applying the park brake, to preserve event data. Finally, the testing showed that, if data were recorded, their accuracy was not affected by power loss. When data were collected and stored, they reflected the motion of the vehicle with the same accuracy as in cases where no power failure occurred.
- David Plant - D P Plant & Associates, National Transportation Safety Board
- Christopher Voeglie - D P Plant & Associates, National Transportation Safety Board
- Benjamin Smith - ASI Investigations, DELTA [v] Forensic Engineering
- Timothy Cheek - ASI Investigations, DELTA [v] Forensic Engineering
- William Messerschmidt - Messerschmidt Safety Consulting
- Timothy Austin - Messerschmidt Safety Consulting
CitationMesserschmidt, W., Austin, T., Smith, B., Cheek, T. et al., "Simulating the Effect of Collision-Related Power Loss on the Event Data Recorders of Heavy Trucks," SAE Technical Paper 2010-01-1004, 2010, https://doi.org/10.4271/2010-01-1004.
- Bortolin, R. van Nooten, S.A.B. Scodeller, M. Alvar, D. et al. “Validating Speed Data from Cummins Engine Sudden Deceleration Data Reports,” SAE Int. J. Passeng. Cars - Mech. Syst. 2 1 970 982 2009
- Brach, R.M. Rudny, D.F. Sallmann, D.W. “Comparison of Tire Friction Test Methodologies Used in Accident Reconstruction,” SAE Technical Paper 980367 1998
- Drew, K. van Nooten, S.A.B. Bortolin, R. Gervais, J. et al. “The Reliability of Snapshot Data from Caterpillar Engines for Accident Investigation and Analysis,” SAE Technical Paper 2008-01-2708 2008
- Eubanks, J.J. Haight, W.R. Malmsbury, R.N. Casteel, D. “A Comparison of Devices Used to Measure Vehicle Braking Deceleration,” SAE Technical Paper 930665 1993
- Goebelbecker, J.M. Ferrone, C. “Utilizing Electronic Control Module Data in Accident Reconstruction,” SAE Technical Paper 2000-01-0466 2000
- Luker, C. “Comparisons of Devices for Measuring Acceleration vs. Time in Braking Tests,” SAE Technical Paper 2008-01-0180 2008
- Reust, T.J. “The Accuracy of Speed Captured by Commercial Vehicle Event Data Recorders,” SAE Technical Paper 2004-01-1199 2004
- Reust, T.J. Morgan, J.M. “Commercial Vehicle Event Data Recorders and the Effect of ABS Brakes During Maximum Brake Application,” SAE Technical Paper 2006-01-1129 2006
- Smith, B. N. Messerschmidt, W. F. Demonia, R. E. 2009 Fall Testing the Last Stop Record in the Mercedes MBE 4000 Collision 4 36 42
- Steiner, J.C. Cheek, T.M. Hinkson, S.H. “Data Sources and Analysis of a Heavy Vehicle Event Data Recorder - V-MAC III,” SAE Technical Paper 2009-01-0881 2009
- Van Nooten, S.A.B. Hrycay, J.R. “The Application and Reliability of Commercial Vehicle Event Data Recorders for Accident Investigation and Analysis,” SAE Technical Paper SAE 2005-01-1177 2005