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The Analytical Basis of Automobile Coastdown Testing
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English
Abstract
Coastdown testing is an acceptable technique for establishing the dynamometer load which simulates the vehicle road load during EPA dynamometer fuel economy and emission testing.
This paper discusses the theoretical basis of a successful approach to coastdown testing. Corrections for the effects of ambient conditions on road test results are defined, and a data-efficient method of matching the dynamometer to road load is discussed.
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Citation
Yasin, T., "The Analytical Basis of Automobile Coastdown Testing," SAE Technical Paper 780334, 1978, https://doi.org/10.4271/780334.Also In
References
- Dayman, B. Jr. “Tire Rolling Resistance Measurements from Coast-Down Tests.” Paper 760153 SAE Automotive Engineering Congress and Exposition Detroit February 1976
- White R. A. Korst H. H. “The Determination of Vehicle Drag Contributions from Coast-Down Tests.” Paper 720099 SAE Automotive Engineering Congress and Exposition Detroit January 1972
- Thompson G. D. “Light Duty Vehicle Road Load Determination.” Technical Support Report for Regulatory Action, U. S. Environmental Protection Agency December 1976