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J2263 - Road Load Measurement Using Onboard Anemometry and Coastdown Techniques

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Document Number: J2263
Project Initiation: 02-25-2014
Sponsor Name: Thomas A. Beierschmitt
Title
Road Load Measurement Using Onboard Anemometry and Coastdown Techniques
Scope
This SAE Recommended Practice establishes a procedure for determination of vehicle road load force for speeds between 115 and 15 km/h (71.5 and 9.3 mph). It employs the coastdown method and applies to vehicles designed for on-road operation. The final result is a model of road load force (as a function of speed) during operation on a dry, level road under reference conditions of 20°C (68°F), 98.21 kPa (29.00 in-Hg), no wind, no precipitation, and the transmission in neutral.
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