Comparing PID and Fuzzy Logic Control a Quarter-car Suspension System

Volume 2, Issue 3, pp 559--564 http://dx.doi.org/10.22436/jmcs.02.03.18

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Authors

Nemat Changizi - Islamic Azad University, Gonabad Branch Modjtaba Rouhani - Islamic Azad University, Gonabad Branch

Abstract

The main aim of suspension system is to isolate a vehicle body from road irregularities in order to maximize passenger ride comfort and retain continuous road wheel contact in order to provide road holding. Theaim of the work described in the paper was to illustrate theapplication of fuzzy logic technique to the control of a continuously damping automotive suspension systemThe ride comfort is improved by means of thereduction of the body acceleration caused by the car body whenroad disturbances from smooth road and realroad roughness.The paper describes also the model and controller used in thestudy and discusses the vehicle response results obtained from a range of road input simulations In the conclusion, a comparison of active suspension fuzzy control and Proportional Integration derivative (PID) control is shown using MATLAB simulations.

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Keywords

• suspension system
• a quartercar model
• fuzzy logic control
• PID controller
• spring and damper

MSC

•  68T05
•  92B20
•  93C42

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