This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Multiple Steered Axles for Reducing the Rollover Risks of Heavy Articulated Trucks
Annotation ability available
Sector:
Language:
English
Abstract
This paper presents an analytical study of the performance improvements that can be obtained at both high and low speed using multiple steered axles on heavy articulated trucks. At high speed, rollover usually represents a worst case scenario. Therefore we have chosen to evaluate possible steering designs based on their ability to reduce lateral acceleration of the semitrailer center of gravity. This is in contrast to passenger cars where four-wheel steering has typically been evaluated based on measures that were thought to be related to driver acceptance. This paper also investigates the effects of steering rear tractor axles on the low-speed maneuverability of the vehicle.
Steering algorithms for the rear tractor tires were evaluated using frequency response and simulation of an obstacle avoidance maneuver. Results indicate that at high speeds considerable reductions in trailer lateral acceleration can be obtained during transient maneuvers. At low speeds, steering of the rear axles demonstrated improvements in maneuverability. More work is needed to determine if drivers are able to effectively make use of these improvements indicated by the open loop models, and to evaluate the practicality and cost of implementing these systems.
Recommended Content
Authors
Topic
Citation
Furleigh, D., Vanderploeg, M., and Oh, C., "Multiple Steered Axles for Reducing the Rollover Risks of Heavy Articulated Trucks," SAE Technical Paper 881866, 1988, https://doi.org/10.4271/881866.Also In
References
- Sano, S. Furukawa, Y. Shiraishi, S. “Four-Wheel Steering System with Rear Wheel Steer Angle Controlled as a Function of Steering Wheel Angle,” SAE Paper 860625 1986
- Shibahata, Y. Irie, N. Itoh, H. Nakamura, K. “The Development of an Experimental Four-Wheel Steering Vehicle,” SAE Paper 860623 1986
- Takiguchi, T. Yasuda, N. Furutani, S. Kanazawa, H. Inoue, H. “Improvement of Vehicle Dynamics by Vehicle-Speed-Sensing Front-Wheel Steering System,” SAE Paper 860624 1986
- Fukunaga, Y. Irie, N. Kuroki, J. Sugasawa, F. “Improved Handling and Stability using Four-Wheel Steering,” 11th International Conference on Experimental Technical Safety Vehicles Washington, D.C. May 12-15 1987
- Nakaya, H. Oguchi, Y. “Characteristics of Four-Wheel Steering Vehicle and Its Future Prospects,” JSAE Review 7 1 70 77 April 1986
- Bernard, J. E. Vanderploeg, M. J. Shannan, J. E. “Linear Analysis of a Vehicle with Four-Wheel Steering,” SAE Paper 880643 1988
- Vanderploeg, M. J. Trom, J. D. Bernard, J. E. “Evaluation of Four-Wheel Steer Path Following Performance Using a Linear Inverse Vehicle Model,” SAE Paper 880644 1988
- Mallikarjunarao, C. Fancher, P. “Analysis of the Directional Response Characteristics of Double Tankers,” SAE Paper 781064 December 1978
- Ellis, J. R. “The Ride and Handling of Semitrailer Articulated Vehicles,” Automobile Engineer December 1966 523 529
- Bundorf, R. T. “Directional Control Dynamics of Automobile-Travel Trailer Combinations,” SAE Transactions 76 1968 670099
- Bernard, J. E. Vanderploeg, M. J. “Static and Dynamic Offtracking of Articulated Vehicles,” SAE Paper 800151 February 1980