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On-Road Evaluation of Devices to Reduce Heavy Truck Aerodynamic Drag
Technical Paper
2007-01-4294
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Several practical devices to reduce aerodynamic drag on a typical class 8 line-haul tractor-trailer application were evaluated last year by this author and Fongloon (Peter) Pan in SAE 2007-01-1781 [Reference 1]. Those evaluations were conducted via reduced scale wind tunnel testing and focused on three areas within the tractor-trailer system: tractor-trailer gap, trailer sides and trailer aft body.
This paper builds on our previous work, and presents the results of full scale, on-road fuel economy tests of a select sub-set of those devices. The on-road fuel economy testing was accomplished in accordance with SAE Type II (J1321) test procedure [Reference 2].
An 11.5% improvement in highway fuel economy was demonstrated for a select combination of devices.
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Authors
Citation
Schoon, R., "On-Road Evaluation of Devices to Reduce Heavy Truck Aerodynamic Drag," SAE Technical Paper 2007-01-4294, 2007, https://doi.org/10.4271/2007-01-4294.Also In
References
- Schoon R. Pan F. P. “Practical Devices for Heavy Truck Aerodynamic Drag Reduction,” SAE paper No. 2007-01-1781 2007 Originally published as SAE 2006-01-3531 2006
- SAE J1321 “Joint TMC/SAE Fuel Consumption Test Procedure” Reaffirmed October 1986
- Cummins MPG Guide “Secrets of Better Fuel Economy - The Physics of MPG” December 2003