This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Recovery of Partial Caterpillar Snapshot Event Data Resulting from Power Loss
Technical Paper
2016-01-1493
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Recovery of snapshot data recorded by Caterpillar engine control modules (ECMs) using Caterpillar Electronic Technician (CatET) software requires a complete snapshot record that contains information gathered both before and after an event. However, if an event is set and a crash ensues, or a crash creates an event, then it is possible for the ECM to lose power and not complete the recording. As such, the data may not be recoverable with CatET maintenance software. An examination of the J1708 network traffic reveals the snapshot data does exist and is recoverable. A motivational case study of a crash test between a Caterpillar powered school bus and a parked transit bus is presented to establish the hypothesis. Subsequently, a digital forensic recovery algorithm is detailed as it is implemented in the Synercon Technologies Forensic Link Adapter (FLA). A series of tests with different Caterpillar ECMs was conducted where simulated speeds were varied while disconnecting power to the ECM at specified times. The timing thresholds for complete event recordings were determined. A comparison of the results obtained from the FLA and CatET show the forensic data extraction process of the FLA is reliable even if an ECM suffers a power loss shortly after an event is triggered.
Recommended Content
| Technical Paper | Design and Application of the Series 60 Engine, Truck Applications |
| Technical Paper | Power-Rate Crash Sensing Method for Safety Device Actuation |
Authors
Citation
Daily, J., Johnson, J., and Perera, A., "Recovery of Partial Caterpillar Snapshot Event Data Resulting from Power Loss," SAE Technical Paper 2016-01-1493, 2016, https://doi.org/10.4271/2016-01-1493.Also In
References
- American Trucking Association Technology & Maintenance Council Recommended Practice Windows Communication API TMC Recommended Practice RP1210B 2006
- Boggess , B. , Dunn , A. , Morr , D. , Martin , T. et al. A New Passive Interface to Simulate On-Vehicle Systems for Direct-to-Module (DTM) Engine Control Module (ECM) Data Recovery SAE Technical Paper 2010-01-1994 2010 10.4271/2010-01-1994
- Austin , T. , Messerschmidt , W. , and Farrell , M. Using & Preserving HVEDR Diagnostic Event Data Collision Magazine 7 2 Fall 2012
- Córcega , J. L. Design of A Forensically Neutral Electronic Environment For Heavy Vehicle Event Data Recorders M.S. Thesis The University of Tulsa 2015
- Bortolin , R. , van Nooten , S. , 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 10.4271/2009-01-0876
- Messerschmidt , 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 10.4271/2010-01-1004
- Austin , T. and Farrell , M. An Examination of Snapshot Data in Caterpillar Electronic Control Modules SAE Int. J. Passeng. Cars - Mech. Syst. 4 1 611 635 2011 10.4271/2011-01-0807
- SAE International Surface Vehicle Recommended Practice Serial Data Communications Between Microcomputer Systems in Heavy-Duty Vehicle Applications SAE Standard J1708 Oct. 2008
- SAE International Surface Vehicle Recommended Practice Electronic Data Interchange Between Microcomputer Systems in Heavy-Duty Vehicle Applications SAE Standard J1587 Jul. 2008
- Intrepid Control Systems neoVI YELLOW http://store.intrepidcs.com/neoVI-YELLOW-p/neoviyellow.htm 2015
- VSPY3 Vehicle Spy 3 http://store.intrepidcs.com/Vehicle-Spy-p/vspy-3-pro.htm 2015
- HBM HBM Somat eDAQ Rugged, Mobile Data Acquisition System http://www.hbm.com/en/1774/somat-edaq-ruggedmobile-data-acquisition-system/ 2015
- Steiner , J. , Cheek , T. , and Hinkson , S. Data Sources and Analysis of a Heavy Vehicle Event Data Recorder - V-MAC III SAE Int. J. Commer. Veh. 2 1 49 57 2009 10.4271/2009-01-0881
- Bayan , F. , Cornetto , A. , Dunn , A. , Tanner , C. et al. Comparison of Heavy Truck Engine Control Unit Hard Stop Data with Higher-Resolution On-Vehicle Data SAE Int. J. Commer. Veh. 2 1 29 38 2009 10.4271/2009-01-0879
- HBM EGPS-200 Precision GPS Receiver for Somat eDAQ and Somat eDAQlite http://www.hbm.com/en/3359/egps-200-precision-gps-receiver-for-somat-edaq-and-somat-edaqlite/ 2015
- FLA Forensic Link Adaptor http://www.synercontechnologies.com/ 2015
- Johnson , J.W. A Forensically Sound Method For Evidence Extraction From Heavy Truck ECMs PhD Thesis The University of Tulsa 2014