International Journal of Vehicle Structures and Systems

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Dynamic Performance of Electro-Hydraulic Steering System for Off-Road Vehicles


Affiliations
1 Automotive and Tractor Engineering Dept., Helwan University, Egypt
2 Manufacturing & Production Technology Dept., Modern Academy for Engineering and Technology, Cairo, Egypt
     

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The dynamic characteristics of an Electro-hydraulic (EH) steering system plays an important role in realizing an accurate steering control for an automatically guided vehicles. In this paper, a mathematical model has been developed for EH steering system that includes EH servo valve with mechanical feedback, steering actuation cylinders and associated steering linkages. A proportional-integral controller has been designed to improve the dynamic performance of EH steering system for off-road vehicles. The simulated system models using SIMULINK were validated using experimental tests. The control of steering angle using the proposed proportional-integral controller has been demonstrated for different soil conditions.

Keywords

Off-Road Vehicles, EH Steering System, Kinematic Model, Proportional Integral Controller, SIMULINK.
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  • Dynamic Performance of Electro-Hydraulic Steering System for Off-Road Vehicles

Abstract Views: 230  |  PDF Views: 2

Authors

M. S. Tayea
Automotive and Tractor Engineering Dept., Helwan University, Egypt
M. A. A Emam
Automotive and Tractor Engineering Dept., Helwan University, Egypt
S. M. Shaaban
Automotive and Tractor Engineering Dept., Helwan University, Egypt
S. M. El-Demerdash
Automotive and Tractor Engineering Dept., Helwan University, Egypt
M. Galal Rabee
Manufacturing & Production Technology Dept., Modern Academy for Engineering and Technology, Cairo, Egypt

Abstract


The dynamic characteristics of an Electro-hydraulic (EH) steering system plays an important role in realizing an accurate steering control for an automatically guided vehicles. In this paper, a mathematical model has been developed for EH steering system that includes EH servo valve with mechanical feedback, steering actuation cylinders and associated steering linkages. A proportional-integral controller has been designed to improve the dynamic performance of EH steering system for off-road vehicles. The simulated system models using SIMULINK were validated using experimental tests. The control of steering angle using the proposed proportional-integral controller has been demonstrated for different soil conditions.

Keywords


Off-Road Vehicles, EH Steering System, Kinematic Model, Proportional Integral Controller, SIMULINK.



DOI: https://doi.org/10.4273/ijvss.4.1.01