Abstract
In this paper, an active front steering (AFS) controller with a new variable steering ratio (VSR) map is proposed to enhance the vehicle stability and consider the driver’s steering comfort. The properties of the steering sensitivity and the yaw rate gain are investigated and utilized to construct a 3D VSR map in terms of the steering wheel angle and the longitudinal vehicle velocity. Based on this 3D VSR map, the AFS controller is designed by adopting the model predictive control (MPC) approach. An optimum solution of the MPC controller is determined by taking into account the AFS actuator limits. The proposed algorithm is validated in simulations by using the commercial software, CarSim and MATLAB/Simulink.
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References
Balachandran, A. and Gerdes, J. C. (2015). Designing steering feel for steer-by-wire vehicles using objective measures. IEEE/ASME Trans. Mechatronics 20, 1, 373–383.
Camacho, E. F. and Alba, C. B. (2007). Model Predictive Control. Springer Science & Business Media. Springer-Verlag London. London, UK.
Choi, J. (2013). Yaw stability control of a vehicle by gear ratio change and active steering. J. Korean Society of Mechanical Technology 15, 3, 325–330.
Gillespie, T. D. (1992). Fundamentals of Vehicle Dynamics. SAE International. Warrendale, Pennsylvania, USA.
Heathershaw, A. (2000). Optimizing variable ratio steering for improved on-centre sensitivity and cornering control. SAE Paper No. 2000-01-0821.
Jin, X., Yin, G., Zhang, N. and Chen, J. (2016). Improving vehicle handling stability performance via integrated control of active front steering and suspension systems. IEEE Transportation Electrification Conf. and Expo, Busan, Korea.
Koehn, P. and Eckrich, M. (2004). Active steering-the BMW approach towards modern steering technology. SAE Paper No. 2004-01-1105.
Li, F., Wang, L., Liao, C. and Wu, Y. (2014). Active steering control strategy of steer-by-wire system based on variable steering ratio. IEEE Conf. and Expo Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), Beijing, China.
Ma, X., Wong, P. K., Zhao, J. and Xie, Z. (2016). Multi-objective sliding mode control on vehicle cornering stability with variable gear ratio actuator-based active front steering systems. Sensors 17, 1, 49.
Rajamani, R. (2011). Vehicle Dynamics and Control. Springer Science & Business Media. USA.
Salaani, M. K., Heydinger, G. J. and Grygier, P. A. (2004). Experimental steering feel performance measures. SAE Paper No. 2004-01-1074.
Song, J. (2013). Design and evaluation of AFS and ARS controllers with sliding mode control and fuzzy logic control method. Trans. Korean Society of Automotive Engineers 21, 2, 72–80.
Acknowledgement
This work was supported by the Industrial Strategic Technology Development Program (10079730, Development and Evaluation of Automated Driving Systems for Motorway and City Road) funded By the Ministry of Trade, Industry & Energy (MOTIE, Korea).
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Cho, J., Huh, K. Active Front Steering for Driver’s Steering Comfort and Vehicle Driving Stability. Int.J Automot. Technol. 20, 589–596 (2019). https://doi.org/10.1007/s12239-019-0056-1
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DOI: https://doi.org/10.1007/s12239-019-0056-1