Using Ford PCM Data to Evaluate Deceleration Rates, Brake Time and Impact Speeds
Although the accuracy of event data recorder (EDR) data during steady state operation has been documented and research has shown that EDRs underreport speed during hard braking, there currently is no quantitative method to estimate the actual ground speed from the speed reported by the EDR. This paper reports on tests that were conducted with instrumented vehicles to measure time, speed and distance. Two distinct phases were documented: the initial brake engagement phase and the ongoing deceleration phase following antilock braking system engagement. A method is proposed to better estimate true ground speed during each phase from the speed data reported in the EDR. Directions for future research are suggested.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/19348681
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Authors:
- Reust, Timothy J
- Ruth, Richard R
- Morgan, James M
- Publication Date: 2009
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References;
- Pagination: pp 74-79
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Serial:
- Collision. The International Compendium for Crash Research
- Volume: 4
- Issue Number: 1
- Publisher: Collision Publishing LLC
- ISSN: 1934-8681
- Serial URL: http://www.collisionmagazine.com/
Subject/Index Terms
- TRT Terms: Braking; Deceleration; Distance; Estimating; Event data recorders; Impact; Instrumented vehicles; Speed data; Speed measurement; Time
- Identifier Terms: Ford Motor Company
- Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment; I80: Accident Studies;
Filing Info
- Accession Number: 01145037
- Record Type: Publication
- Files: TRIS
- Created Date: Nov 24 2009 7:47AM