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Publications and Presentations

This page lists many of the publications by authors affiliated with TU-CRRC. Copyrighted material is not available here, but supporting data, documentation and presentations will be linked. The publications are listed in chronological order.

2012

Assessing Accuracy of Vehicle Event Data based on CAN Messages

by Carsten Mueller, Jeremy Daily, and Mauricio Papa

SAE Paper Number: 2012-01-1000

A pdf of the presentation is available here.

There are two examples given during the presentation at the SAE World Congress. The first discusses the data from a crash test with a DDEC 10 controlled Freightliner, and the second is an example of a Critical Speed Yaw test of a 2012 Toyota Corolla. These examples are actually different than those presented in the paper, but the concept is the same.

The Python computer script used to generate images of the time history of the data is availalble for download. This will produce a pdf file with 782 graphics that is based on a log file in ASCII format generated by a Vector CANCase XL Log. The docoding script also produces a message ID inventory that gives a rough estimate of timing properties. The following files contain the speed signals:

Wheel Speed Graphic CAN 0B2 Output.pdf

Wheel Speed Graphic CAN 0B0 Output.pdf

Speed from ID 610 Output.pdf

Speed from ID 302 Output.pdf (this is the VBox signal transmitted on the CAN)

The supporting documentation for the Arduino is available.

Speed Accuracy of Event Data Recorder in the 2010 and 2011 Toyota Camry During Steady State and Braking Conditions

by Richard Ruth, Wade Bartlett, and Jeremy Daily

SAE Paper Number: 2012-01-0999

The raw data for this paper is available in SAE2012ToyotaDataArchive.zip. This archive contains CDR reports, VBox data, and CAN data.

Analysis of Critical Speed Yaw Scuffs Using Spiral Curves

by Jeremy Daily

SAE Paper Number: 2012-01-0606

The presentation is linked here in PDF format.

This paper introduces the idea of fitting curved tire marks from a critical speed yaw (CSY) to spiral curves. Three spiral curves are examined: 1) Clothoid Spirals, 2) Logarithmic Spirals, and 3) Archimedean Spirals. It was found that Logarithmic Spirals are the most appropriate for this application.

In the paper, there are tables from Excel spreadsheets. These spreadsheets are available below:

• Excel Spreadsheet for Archemedean Spiral Fits
• Excel Spreadsheet for Logarithmic Spiral Fits
• Excel Spreadsheet for Clothoid Spiral Fits

Part of the data reduction uses a Hypergeometric Function. That implementation was done in Mathematica. The notebook (.nb) file is Mathematica Archemedian Arc Length Calculation Notebook and the printout of that notebook is ArchemedianArcLengthCalculation.pdf.

The spreadsheets have links amongst themselves to perform some comparisons, so it is recommended to store all the files in the same directory.

Some additional tests were conducted to generate some realistic curved tire mark data. The first test was described in the paper, and the data from the other two are available here.

The raw data from the total station measurements are in the archive: Maps.zip

The following Video VBox files are available for three tests:

• VBOX_20110905142510_0001-Test1.avi
• VBOX_20110905142510_0001-Test1.vbo
• VBOX_20110905152456_0001-Test2.avi
• VBOX_20110905152456_0001-Test2.vbo
• VBOX_20110905153432_0001-Test3.avi
• VBOX_20110905153432_0001-Test3.vbo

The data from the Racelogic VBox 3i (100 Hz) are available:

• VBOX0002 Test3 DodgeRam.vbo
• VBOX0000 Test1 DodgeRam.vbo
• VBOX0001 Test2 DodgeRam.vbo

The scanned field notes are available here and contain the chord and middle ordinate measurements.

2011

Kucera, S. and Daily, J., "Using Particle Image Velocimetry for Road Vehicle Tracking and Performance Monitoring," SAE Technical Paper 2011-01-0279, 2011, doi:10.4271/2011-01-0279. SAE Presentation 2011 Handout.pdf (1.3 MB)

Ruth, R. and Daily, J., "Accuracy of Event Data Recorder in 2010 Ford Flex During Steady State and Braking Conditions," SAE Int. J. of Passeng. Cars – Mech. Syst. 4(1):677-699, 2011, doi:10.4271/2011-01-0812.

2010

Fleck, G. and Daily, J., "Sensitivity of Monte Carlo Modeling in Crash Reconstruction," SAE Int. J. Passeng. Cars - Mech. Syst. 3(1):100-112, 2010, doi:10.4271/2010-01-0071.

2009

Daily, J., "Monte Carlo Techniques for Correlated Variables in Crash Reconstruction," SAE Int. J. Passeng. Cars - Mech. Syst. 2(1):345-358, 2009, doi:10.4271/2009-01-0104.

2008

Daily, J.S., “Determine A Range Using Statistics in Reconstruction,” Motor Vehicle Accident Reconstruction: Theory and Practice, Vancouver BC, 5-13 July 2008. UncertaintyPaper-part1.pdf (4.9 MB)

Daily, J.S., “Correlated Variables in Reconstruction,” Motor Vehicle Accident Reconstruction: Theory and Practice, Vancouver BC, 5-13 July 2008. UncertaintyPaper-part2.pdf (3.5 MB)

Daily J.S., "Overcoming the Limitations of Conservation of Linear Momentum by Including External Impulse," Presentation to the Mechanical engineering Professional Societies at the University of Tulsa, March 12, 2008. AppliedImpulseMomentumForMackAndMotorcycle.pdf (2.7 MB)

Daily, J.S., Singleton, N., and Manes, G.W., “Automobile Event Data Recorder Forensics,” Fourth Annual International Federation for Information Processing (IFIP) WG 11.9 International Conference on Digital Forensics, Kyoto University, Kyoto, Japan, January 27 - 30, 2008.

2007

Daily, J.S., Cook, G., Daily, J.G., “A Controller Design for a Dynamic Roadway Marking System,” 53rd International Instrumentation Symposium (IIS), Tulsa, OK, 30 April - 3 May 2007.

Jones, Z.A., Daily, J.S., “A Concept For A Portable Mass Moment Of Inertia Measurement Device,” XVII Canadian Multidisciplinary Road Safety Conference, Montreal, Canada, June 3-6, 2007.

2006

Daily, J.S., Strickland, R., and Daily, J.G. “Crush Analysis with Under-rides and the Coefficient of Restitution,” Special Problems in Traffic Crash Reconstruction Proceedings, Institute of Police Technology and Management, Jacksonville, FL, 24-28 April 2006. CrushAndRestitution.pdf (1.5 MB)

2005

Daily, J.S., "Finding a Range Using Statistics In Traffic Crash Reconstruction," Presentation to the 19th Annual Traffic Crash Reconstruction Conference Illinois Association of Technical Accident Investigators (IATAI), September 20, 2005.StatsHandout.pdf (1.4 MB)

Daily, J.S. and Strickland, R., “Analysis of Four Staged Crashes of Passenger Vehicles into a Semi-trailer,” Special Problems in Traffic Crash Reconstruction Proceedings, Institute of Police Technology and Management, Jacksonville, FL, 25-29 April 2005. TrailerCrashAnalysis.pdf (1.6 MB)

2004

Daily, J.S. and Daily, J.G., “Multiple Vehicle Collisions: An Application of the Monte Carlo Method,” Special Problems in Traffic Crash Reconstruction Proceedings, Institute of Police Technology and Management, 24-30 April 2004. MonteCarloWhitePaper.pdf

 

Written By Jeremy Daily, Department of Mechanical Engineering at the University of Tulsa. The content on this page has not been peer reviewed and is not suitable for supporting litigation. Support for the content on this website comes from consortium members. Also, this project was supported by Award No. 2010-DN-BX-K215 awarded by the National Institute of Justice, Office of Justice Programs, U.S. Department of Justice. The opinions, findings, and conclusions or recommendations expressed in this document are those of the author(s) and do not necessarily reflect those of the Department of Justice.