Simulation and Analysis of Passive and Active Suspension System Using Quarter Car Model for Different Road Profile

  ijett-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2012 by IJETT Journal
Volume-3 Issue-5                       
Year of Publication : 2012
Authors :  Abdolvahab Agharkakli , Ghobad Shafiei Sabet , Armin Barouz


Abdolvahab Agharkakli , Ghobad Shafiei Sabet , Armin Barouz. "Simulation and Analysis of Passive and Active Suspension System Using Quarter Car Model for Different Road Profile". International Journal of Engineering Trends and Technology (IJETT). V3(5):636-644 Sep-Oct 2012. ISSN:2231-5381. published by seventh sense research group


The objectives of this study are to obtain a mathematical model for the passive and active suspensions systems for quarter car model. Current automobile suspension systems using passive components only by utilizing spring and damping coefficient with fixed rates. Vehicle suspensions systems typically rated by its ability to provide good road handling and improve passenger com fort. Passive suspensions only offer compromise between these two conflicting criteria. Active suspension poses the ability to reduce the traditional design as a compromise between handling and comfort by directly controlling the suspensions force actuator s. In this study , the Linear Quadratic Control (LQR) technique implemented to the active suspensions system for a quarter car model. Comparison between passive and active suspensions system are performed by using different types of road profiles. The perfo rmance of the controller is compared with the LQR controller and the passive suspension system.


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Quarter Car - model, Active Suspension system , LQR Control Design , Road Profile