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Using NFPA Compliant Fire Apparatus Vehicle Data Recorders for Collision Investigation - Weldon Type 6444
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 14, 2015 by SAE International in United States
Annotation ability available
The use of Heavy Vehicle Event Data Recorders (HVEDRs) in collision analysis has been well recognized in past research. Numerous publications have been presented illustrating data accuracy both in normal operating conditions as well as under emergency braking conditions. These data recording devices are generally incorporated into Electronic Control Modules (ECMs) for engines or Electronic Control Units (ECUs) for other vehicular components such as the Anti-Lock Brake System. Other research has looked at after-market recorders, including publically-available Global Positioning System (GPS) devices and fleet management tools such as Qualcomm.
In 2009, the National Fire Protection Association (NFPA) incorporated a Vehicle Data Recorder (VDR) component into their Standard for Automotive Fire Apparatus. The purpose of this was to “…capture data that can be used to promote safe driving and riding practices.” The Standard requires minimum data elements, recording times, and sample rates. These include vehicle speed, acceleration, throttle position, and other specified parameters. While the NFPA is not a regulatory agency, it serves to bring representatives from the fire suppression industry together to set accepted practices and standards.
It was the intent of this research to validate the data imaged from a Weldon Type 6444 VDR as employed by fire vehicles. Data were compared to an external VBOX 3i measuring device, as well as internal J1939 Controller Area Network (CAN) data from the vehicle. Testing also incorporated an element designed to ensure that data were retained following a catastrophic loss of power. The results of this study demonstrate that the NFPA compliant Weldon Type 6444 as tested can be used with confidence during a collision investigation.
CitationAustin, T., Plant, D., and LeFevre, J., "Using NFPA Compliant Fire Apparatus Vehicle Data Recorders for Collision Investigation - Weldon Type 6444," SAE Technical Paper 2015-01-1446, 2015, https://doi.org/10.4271/2015-01-1446.
- National Fire Protection Association About NFPA http://www.nfpa.org/about-nfpa Oct. 2014
- National Fire Protection Association Disclaimers http://www.nfpa.org/codes-and-standards/standardsdevelopment-process/disclaimers Oct. 2014
- National Fire Protection Association Fire Code Standard for Automotive Fire Apparatus NFPA Standard 1901 2009
- Weldon - a Division of Akron Brass Vehicle Data Recorder http://vmux.ktzr.net/docs/6444-0000-00_firedatasheet.pdf Oct. 2014
- Weldon - a Division of Akron Brass Type 6444 Vehicle Data Recorder (VDR) with 6204 Occupant Restraint Indicator Software User Manual v1.4 2009
- 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
- Weldon - a Division of Akron Brass Software Updates and Downloads http://www.akronbrass.com/vehicle-datarecorder-and-gateway-module/ June 2014
- SAE International Surface Vehicle Recommended Practice Serial Control and Communications Heavy Duty Vehicle Network - Vehicle Application Layer SAE Standard J1939-71 Feb. 2010
- Reust , T. The Accuracy of Speed Captured by Commercial Vehicle Event Data Recorders SAE Technical Paper 2004-01-1199 2004 10.4271/2004-01-1199
- 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
- van Nooten , S. and Hrycay , J. The Application and Reliability of Commercial Vehicle Event Data Recorders for Accident Investigation and Analysis SAE Technical Paper 2005-01-1177 2005 10.4271/2005-01-1177