A New Robust Strategy to Improve the Transient Dynamic of a Vehicle
الموضوعات :
1 - Assistant Professor, Department of Mechanical Engineering, Parand Branch, Islamic Azad University, Parand, Iran.
الکلمات المفتاحية: Handling, Uncertainty, sliding mode control, Path Tracking,
ملخص المقالة :
In this paper for handling improvement and lateral stability increment of a four-wheeled vehicle a new robust active control system is proposed. First, to establish an accurate model of the vehicle, a fourteen-degrees-of-freedom nonlinear dynamic model is developed. Next to control the lateral motion and yawing motion of the vehicle a new active steering control system designed based on a simplified two-degrees-of-freedom dynamic model. The main reason of using the active steering controller is to track the desired values of the yaw rate and lateral velocity. Also, sliding mode control method is used to design the control system. A complete stability analysis based on the Lyapunov theory is presented to guarantee closed-loop stability. Simulation results show that the controller improves the vehicle’s maneuverability, especially during severe double lane change maneuver in which intense instability occurs. More investigations demonstrate that the proposed control system can considerably improve vehicle maneuverability and path tracking under uncertainties.
[1] Aga, M., Okada, A., Analysis of Vehicle Stability Control Effectiveness from Accident Data, ESV Conference, Nagoya, 2003.
[2] Farmer, Ch., Effect of Electronic Stability Control on Automobile Crash Risk, IIHS Insurance Institute of Highway Safety, Arlington, Virginia, USA, 2004.
[3] Park, K., Heo, S., and Baek, I., Controller Design for Improving Lateral Vehicle Dynamic Stability, Society of Automotive Engineers of japan, Vol. 22, 2001, pp. 481–486.
[4] Ding, N., Taheri S., An Adaptive Integrated Algorithm for Active Front Steering and Direct Yaw Moment Control Based on Direct Lyapunov Method, Vehicle System Dynamics, Vol. 48, No. 10, 2010, pp. 1193–1213.
[5] Saeedi, M. A., Kazemi, R., and Azadi, S., Analysis of Roll Control System to Eliminate Liquid Sloshing Effect on Lateral Stability of an Articulated Vehicle Carrying Liquid, International Journal of Engineering, Vol. 29, No. 3, 2016.
[6] Saeedi, M. A., Kazemi, R., and Azadi, S., Improvement in The Rollover Stability of a Liquid-Carrying Articulated Vehicle Via a New Robust Controller, Proc IMechE, Part D: Journal of Automobile Engineering, doi:10.1177/0954407016639204, 2015.
[7] Shojaeefard, M. H., Talebitooti, R., and Yarmohammadi satri, S., Optimum Design of 1st Gear Ratio for 4WD Vehicles Based on Vehicle Dynamic Behaviour, Advances in Mechanical Engineering, 2013, pp. 1-9.
[8] Talebitooti, R., Shojaeefard, M. H., and Yarmohammadi satri, S., Shape design Optimization of Cylindrical Tank Using B-Spline Curves, Computer and Fluids, Vol. 109, 2015, pp. 100-112.
[9] Shojaeefard, M. H., Talebitooti, R., and Yarmohammadisatri, S., Optimizing Elliptical Tank Shape Based on Real-Coded Genetic Algorithm, Int J of Advanced Design and Manufacturing Technology, Vol. 6, No. 4, 2013, pp. 23-29.
[10] Nam, K., Fujimoto, H., and Hori, Y., Advanced Motion Control of Electric Vehicles Based on Robust Lateral Tire Force Control Via Active Front Steering, IEEE/ASME Trans Mechatronics, Vol. 99, 2012, pp. l–11.
[11] Kim, S. J., Kwak, B. H., Chung, S. J., and Kim, J. G., Development of an Active Front Steering System, Int. J. Automotive Technology, Vol. 7, No. 3, 2006, pp. 315-320.
[12] Guvenc, B. A., Guvenc, L., and Karaman, S., Robust Yaw Stability Controller Design and Hardware-in-the-Loop Testing for a Road Vehicle, IEEE Trans Veh Technol, Vol. 58, 2009, pp. 555–571.
[13] Zhang, J., Kim, J., Xuan, D., and Kim, Y., Design of Active Front Steering (AFS) System with QFT Control, Int J Comput Applic Technol, Vol. 41, No. 201, pp. 236–245.
[14] El Nashar, H., Enhanced Vehicle Lateral Stability in Crosswind by Limited State Kalman Filter Four Wheel Steering System, SAE paper, 2007.
[15] Saeedi, M. A., Kazemi, R., Stability of Three-Wheeled Vehicles with and without Control System, International Journal of Automotive Engineering, Vol. 3, No. 1, 2013, pp. 343-355.
[16] Saeedi, M. A., Kazemi, R., and Azadi, S., A New Robust Controller to improve the Lateral Dynamic of an Articulated Vehicle Carrying Liquid, Proc IMechE, Part K: Journal of Multibody Dynamics, doi:10.1177/1464419316663028, 2016.
[17] Pacejka H., Tyre and Vehicle Dynamics, Oxford: Butterworth-Heinemann, 2005.
[18] Mechanical Simulation Corporation (MSC), CarSim 8.0 Reference Manual, February, 1999.
[19] March, C., Shim, T., Integrated Control of Suspension and Front Steering to Enhance Vehicle Handling, Proc IMechE, Part D: Journal of Automobile Engineering, Vol. 221, 2007, pp. 377-391.
