APPLICATION MATLAB/SIMULINK MODELING AND SIMULATING THE DYNAMICS OF HYDRAULIC SYSTEM TO ASSIST STEERING VEHICLE

Abstract

Power steering has become a standard component of the car's steering system. Currently, there are two types of power steering: hydraulic power steering and electric power steering. Electric power steering has been in use for a few recent years for small cars due to the limited assist ability, so hydraulic power is still common on most vehicles including both small cars and trucks. This study deals with the dynamics of the hydraulic system of power assist steering: The system uses the hydraulic pressure supplied by the hydraulic pump (pulled by the engine), using a rotary valve mechanism that controls the hydraulic flow to the cylinder, providing force / torque, which support to the driving operation. This article applies Matlab/ simulink software modeling and simulating the dynamics of hydraulic system to assist stering vehicles.