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Heavy Vehicle Braking - U.S. versus Europe
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English
Abstract
Differences in regulations and design philosophies have brought about the development of significantly different hardware in the braking systems of U.S. and European heavy vehicles. In the service braking system, for example, European heavy vehicles generally have larger front brakes than their U.S. counterparts, and they are usually equipped with load-sensing brake proportioning valves (not used on U.S. vehicles). Emergency brake systems and parking brake systems are also different. This paper discusses those differences that have a significant impact on safety-related performance and presents the results of recent tests that were run to compare the braking performance of a U.S. five-axle tractor semitrailer combination to a European vehicle of the same basic size, weight and axle configuration in various simulated accident avoidance maneuvers.
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Citation
Radlinski, R., "Heavy Vehicle Braking - U.S. versus Europe," SAE Technical Paper 892504, 1989, https://doi.org/10.4271/892504.Also In
References
- Radlinski, Richard W. Flick, Mark A. “Tractor and Trailer Brake System Compatibility,” SAE Paper No. 861942 November 1986
- Flick, Mark A. Radlinski, Richard W. “NHTSA's Heavy Duty Vehicle Brake Research Program Report Number 8 - Comparison of the Braking Performance of a U.S. and a European Combination Vehicle,” Vehicle Research and Test Center, Final Report No. DOT HS 807 345 July 1988
- Gillespie, T.D. Balderas, L. “An Analytical Comparison of the Dynamic Performance of a European Heavy Vehicle and a Generic U.S. Heavy Vehicle,” The University of Michigan Transportation Research Institute Final Report Number DOT HS 807 187 August 1987