This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Vehicle Performance Improvement by Steering a Third Axle
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 05, 2010 by SAE International in United States
Annotation ability available
The conventional rear tandem axle of a three-axle vehicle produces a yaw resisting moment that adversely impacts vehicle performance. This work examines the steady-state handling effect of steering the rear axle of a three-axle vehicle in terms of equivalent wheelbase and understeer. It is found that a very simple rear axle steer control strategy improves both the equivalent wheelbase and understeer. The equivalent wheelbase of the rear axle steered vehicle calculated from vehicle performance data equals the intuitively expected kinematic result. Finally, improvement in tire wear by steering the third axle is reported.
|Journal Article||Directional Dynamics of Steering the Third Axle|
|Journal Article||Tire Wear Improvement by Steering a Third Axle|
|Technical Paper||Optimum Ackerman for Improved Steering Axle Tire Wear on Trucks|
CitationWilliams, D. and Sherwin, K., "Vehicle Performance Improvement by Steering a Third Axle," SAE Technical Paper 2010-01-1890, 2010, https://doi.org/10.4271/2010-01-1890.
- Ellis, John R. Vehicle Dynamics Business Books London 1969
- Wong, J.Y. Theory of Ground Vehicles Wiley New York 1978
- Gillespie, T.D. “Fundamentals of Vehicle Dynamics,” SAE International Warrendale, PA 978-1-56091-199-9 1992
- Milliken, W.F. Milliken, D.L. “Race Car Vehicle Dynamics,” SAE International Warrendale, PA 978-1-56091-526-3 1994
- Ellis, John R. “Steering of Multiple Axle Bogie Systems,” Vehicle System Dynamics 5 4 1976 221 238
- Winkler, Chris B. Gillespie, Thomas D. “On the Directional Response Characteristics of Heavy Trucks,” Vehicle System Dynamics 6 2-3 1977 120
- Winkler, Christopher B. Simplified Analysis of the Steady-State Turning Properties of Complex Vehciles Vehicle System Dynamics 29 1998 141 180
- Pacejka, H.B. “Tire and Vehicle Dynamics,” SAE International Warrendale, PA 978-0-7680-1126-5 2002
- Williams, Daniel E. “Handling Benefits of Steering a Third Axle,” J. Automobile Engineering
- Milliken, W.F. Milliken, D.L. “Chassis Design Principles and Analysis,” SAE International Warrendale, PA 978-0-7680-0826-5 2002
- Fancher, Paul S. Static Stability of Articulated Commercial Vehicles Vehicle System Dynamics 14 4 1985 201 227
- SAE International Surface Vehicle Recommended Practice “Vehicle Dynamics Terminology,” SAE Standard J670e July 1976