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Development of 4WS Control Algorithm for a SUV
Technical Paper
2002-01-1216
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Sport Utility Vehicles (SUV) and light duty trucks have gained in popularity for the last several years and the demand for more car-like behavior has increased, accordingly. Two areas for potential improvement are vehicle stability and maneuverability while parking. 4WS (4 wheel steering system) is known as an effective solution to stability and low speed maneuverability. In this paper, we identify a new systematic design method of two degree of freedom vehicle state feedback control algorithm that can improve vehicle stability, and show its control effects for a SUV with trailer towing. Low speed maneuvering is improved when the rear tires are steered in negative phase relative to the front tires. However with a large rear steer angle at low speed, the vehicle's rear overhang tracks a wider swing-out path than a 2WS vehicle. For this concern, we propose a new swing-out reduction control algorithm.
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Authors
Citation
Akita, T., Satoh, K., and Gaunt, M., "Development of 4WS Control Algorithm for a SUV," SAE Technical Paper 2002-01-1216, 2002, https://doi.org/10.4271/2002-01-1216.Also In
References
- Komamura S. Suzuki K. et al “Steering and Dynamics” Sankaido 1996
- Abe M. Ohsawa H. et al “Technology for Vehicle Dynamics Performance Improvement” JSAE 1998
- Hirano Y. Fukatani K. “Development of Robust Active Rear Steering Control for Automobile” Proceeding of Japanese Society of Mechanical Engineering 1996
- Hata N. Hasegawa S. et al “Control method to reduce swing-out for 4WS” JSAE 1988