In this study a novel control strategy for independent control of front wheels’ steering angles, using fuzzy logic control, has been developed. For this purpose at first the appropriate vehicle dynamic models have been introduced. A simplified two-degree-of-freedom model is considered as the reference model and then a comprehensive eight-degree-of-freedom model is developed as the simulation tool. In the next step, the comprehensive control system has been designed. The control system based on the yaw rate error of the actual vehicle comparing to the predefined reference model, the actual vehicle side slip angle and also lateral acceleration of the actual vehicle, calculates the correction steering angles of the front inner and outer wheels. Finally, a sophisticated precise numerical simulation is performed. In order to ponder the performance of the proposed controller, an optimal control system as an active steering control (ASC) has been used for comparison. The simulation results show considerable improvement in handling and stability of the vehicle compared to the conventional non-controlled system and also a vehicle equipped with an optimal controller ASC.
- Design Engineering Division and Computers in Engineering Division
Design of a Fuzzy Controller for Independent Control of Front Wheels Steering Angles
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Goodarzi, A, Rahiminejad, D, & Esmailzadeh, E. "Design of a Fuzzy Controller for Independent Control of Front Wheels Steering Angles." Proceedings of the ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 6: ASME Power Transmission and Gearing Conference; 3rd International Conference on Micro- and Nanosystems; 11th International Conference on Advanced Vehicle and Tire Technologies. San Diego, California, USA. August 30–September 2, 2009. pp. 1061-1067. ASME. https://doi.org/10.1115/DETC2009-87748
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