Mathematical Modelling Of The Passive And Semi-Active Automobile Suspension Systems In Ford Scorpio Car Model

• Main Authors: Yahaya, Saifudin Hafiz, Yaakub, Siti Farizah, Salleh, Mohd Shukor, Abd Rashid, Mohd Warikh, Abdullah, Abu, Purnomo, Muhammad Ridwan Andi
• Format: Article
• Language: English
• Published: Penerbit Universiti Teknikal Malaysia Melaka 2019
• Online Access: http://eprints.utem.edu.my/id/eprint/24306/2/SAIFUDIN.PDF; http://eprints.utem.edu.my/id/eprint/24306/; https://jamt.utem.edu.my/jamt/article/view/5510/3785

The suspension is a system of spring or shock absorbers connecting the wheels and axles at the chassis of a vehicle. In this study, Ford Scorpio car with passive and semi-active suspension system are formulated using Second Order Differential Equations (ODE). These models were solved analytically using the undetermined coefficient and Cramer rule methods. The comparison between passive and semi-active suspension system also conducted to measure such as displacement, frequency and time by plotting graphs. The passive system resulted that a constant displacement roughly at 0.035 m while 0.025 m was obtained by a semi-active suspension system. Semiactive system took t = 1 s to yield a constant displacement while for the passive suspension system required t = 1.5 s. The comparison showed the semi-active results were better than a passive suspension system.