A Study on Integrated Control for Four-Wheel Steering System to Enhance Vehicle Lateral Stability

Abstract:

This paper presents the design of integrated control for four-wheel steering (4WS) vehicle. A vehicle nonlinear dynamics model is built based on a lateral dynamics simplified linear model. A more accurate sideslip and yaw rate controller is used for lateral dynamics model of 4WS vehicle. Then a vehicle model based on the individual channel and partial decoupling design paradigm is identified from the vehicle dynamics. The sideslip and yaw rate controller is based on a linear multivariable combined with lateral dynamics model and the front and rear steering angles. The results of a stability analysis and simulations are presented to show that the 4WS integrated control system can markedly enhance good vehicle lateral maneuverability.

• Periodical: Advanced Materials Research (Volumes 466-467)
• Pages: 1285-1289
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.466-467.1285
• Online since: February 2012
• Authors: Bin Yang, Mao Song Wan, Qing Hong Sun
• Keywords: Four-Wheel Steering, Individual Channel, Integrated Control System, Lateral Stability, Partial Decoupling

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