Page 34 - FYP Abstract BETA Mech, Mechatronics, MD_Neat

Final Year Project 2020/2021

Design of Four-Wheel Steering

Student’s Name: Ikhmal Arif Bin Rozani
Supervisor’s Name: Awang bin Idris

Supervisor’s Email: awang@unikl.edu.my

Abstract In the traditional two-wheel steering system the rear wheel set is only directed
forward and does not play an active role in regulating the steering. Although the rear wheels
play an important role in steering in the four-wheel steering system, they can be driven at both
high and low speeds. Development vehicles are designed to steer under and rarely steer over.
If a car could compensate for an understeer or oversteer problem automatically, under different
operating conditions, the driver would enjoy almost neutral steering. Driving can also be very
challenging due to the wide wheelbase and track width of a car in circumstances such as low-
speed cornering, car parking and driving in city conditions with heavy traffic in narrow spaces.
There is also a need for a mechanism that results in a lower turning radius. In this study, four-
wheel steering design will be addressed to incorporate a system that can serve the function of
adjusting rear wheel in-phase and counter-phase steering depending on the conditions of
turning and lane shift with respect to front wheels, thus improving a car maneuverability in
conjunction with its speed.

Keywords Steering, mechanical, oversteer, understeer, control

Bachelor of Engineering Technology (Hons) in Mechanical (Automotive) 32
Bachelor of Engineering Technology (Hons) in Mechatronics (Automotive)
Bachelor of Engineering Technology (Hons) in Mechanical Design