By attending this course, you will walk away...
Knowing how to:
- Access the data and preserve it so that it is viable evidence in court or civil proceedings
- Troubleshoot connection problems between the PC and the engine computer after severe crashes
- Access the event data stored in late model heavy trucks, including Detroit Diesel, Caterpillar, and Cummins engines
- Become familiar with the published research into accuracy, reliability, and application of the data
And Understanding:
- How the reported data are measured and calculated, so that valid interpretations can be made
- The known limitations of EDR data, including when data is not captured
- How data are collected and how they can be validated
Course Outline
· Welcome and overview of the class
· Description of a commercial vehicle
· Identification of electronic control modules
· Overview of measurement and control systems
· Description of the methods of communication
o J1587/J1708
o J1939
· An approach to using ECM data in accident investigation
· Introduction to the types of ECM data, history of the ECM
· List of vehicles with an EDR function
· Vehicle specific features, data, and details
o Detroit Diesel
o Cummins Intellect Series
o Caterpillar
o Mack and Volvo
o International
o Third Party Telematics
o Other EDR systems
· ECM Field Guides
· ECM Testing: Lab / Bench Downloads
· ECM Testing: Test Track
· Data Analysis:
o Maine SP testing and NAPARS testing
o Calculating speed from RPM
o ECM literature review
o Determining the time of impact
o Multiple hard brake events
o Properties of the Last Stop
· Limitations and data preservation
· Final Examination
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