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Comparison between Optimized Passive Vehicle Suspension System and Semi Active Fuzzy Logic Controlled Suspension System Regarding Ride and Handling

By Mehrdad N. Khajavi and Vahid Abdollahi

Abstract

Abstract—The purpose of suspension system in automobiles is to improve the ride comfort and road handling. In this research the ride and handling performance of a specific automobile with passive suspension system is compared to a proposed fuzzy logic semi active suspension system designed for that automobile. The bodysuspension-wheel system is modeled as a two degree of freedom quarter car model. MATLAB/SIMULINK [1] was used for simulation and controller design. The fuzzy logic controller is based on two inputs namely suspension velocity and body velocity. The output of the fuzzy controller is the damping coefficient of the variable damper. The result shows improvement over passive suspension method

Topics: Ride Comfort, Fuzzy Logic Controller, Passive and Semi Active System
Year: 2011
OAI identifier: oai:CiteSeerX.psu:10.1.1.193.3013
Provided by: CiteSeerX
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