SAE Professional Development Resource Guide 2013 - 177

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Safety

Accessing and Interpreting Heavy Vehicle Event Data Recorders
3.5 Days I.D.# C1022

Prerequisites
An undergraduate engineering degree or a strong technical background is highly recommended. A basic knowledge of college physics and calculus, as well as a familiarity with commercial motor vehicles is expected. ***Please be advised that this course involves one or more of the following: driving and/or riding in a vehicle; participating in a vehicle demonstration; and/or taking part in an offsite tour using outside transportation. You will be required to sign a waiver on-site and produce a valid driver’s license from your state/country of residence.***

Recent advances in commercial vehicle equipment have increased the potential for incident-related data to be recorded surrounding a collision event. What some have called a “black box” is more properly referred to as a Heavy Vehicle Event Data Recorder (HVEDR) as deﬁned by the SAE J2728 HVEDR Recommended Practice. The term HVEDR is used to describe any type of electronic function that has the capability of storing data surrounding a deﬁned event within an electronic control module found on a heavy truck or bus and that communicates on the SAE J1939 or J1587/J1708 data communications protocol. This course highlights the various vehicle systems and triggering events that may provide data useful in a collision investigation. Guided by recognized industry experts, techniques for preservation and interpretation of HVEDR data will be explored. This highly interactive workshop includes in-class instruction, demonstrations and practical hands-on experiences for acquiring and analyzing data from commercial vehicles.

Topical Outline
DAY ONE • Primer on Multiplexed Vehicle Electronics Systems and Vehicle Data Networks • Network architecture -- SAE J1587/J1708; SAE J1939 • Industry standards for EDR devices -- SAE J2728; TMC RP1210; Other industry standards; Potential government regulations • HVEDR Devices and Data Currently Available on Heavy Vehicles • Engine control systems --Detroit Diesel; Mercedes-Benz; Cummins; Caterpillar; Mack; Volvo; International; PACCAR DAY TWO • HVEDR Devices and Data Currently Available on Heavy Vehicles (continued) • Engine control systems • Antilock brake and stability control systems -- Bendix/KnorrBremse; Meritor WABCO • Inspecting the Vehicle • Chassis & powertrain identiﬁcation • Chassis & powertrain health • Vehicle conﬁguration • Collision damage • Accessing and Imaging Data • Through in-cab diagnostic port • Direct to module (benchtop) • Truck-in-box simulators DAY THREE • Validation Studies and the Accuracy/Reliability of HVEDR Data • Interpreting and Applying HVEDR Data • Determining whether data imaged from a HVEDR is related to an incident of interest • Determining where impact occurred in dataset • Comparing vehicle speed to engine speed • Determining gear selection • Determining travel distance

Learning Objectives
Upon completion of this workshop, you will be able to: • Identify the potential sources of HVEDR data available on commercial vehicles • Utilize various methodologies for accessing and imaging data from HVEDRs while preserving the data in its original electronic format within the control module • Compile documentation of the vehicle and the imaged HVEDR data to properly establish foundational facts that tie the data to the vehicle and to ensure the reliability of incident speciﬁc data • Properly interpret data from HVEDRs and understand the limitations of this data • Analyze HVEDR data in the context of collision reconstruction

Who Should Attend
This course is a must for anyone involved in the investigation and analysis of commercial vehicle crashes who needs to understand the types of event data that are available on commercial vehicles, how it is generated, how it is accessed from the vehicle, and how to apply it in a collision reconstruction. In addition, this course can be valuable to the motor carrier safety manager, independent adjusters, claims managers or attorneys handling commercial vehicle collisions.

Catalog Key

Instructor-led programs

Online courses

ACTAR approved

Part of a Certiﬁcate Program Curriculum
SAE Professional Development Resource Guide 2013

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