Control strategies of the Limited Bandwidth Hydro-pneumatic Active Suspension for Road Vehicle
Benha Faculty of Engineering Journal (BFEJ) • 2020
Publication Information
Authors
Aref M.A. Soliman, Ahmed El-Betar, Mina M. Kaldas and Shereif M.H. Abd-Salam
Keywords
Limited bandwidth hydropneumatic active suspension, Fuzzy Logic Control (FLC), LQR, Anti-Lock Braking System (ABS)
Journal
Benha Faculty of Engineering Journal (BFEJ)
Publisher
Not Available
Volume
Not Available
Issue
M-1-2020
Pages
Not Available
publication.type
Local
Paper Link
Not Available
Supplementary Materials
Not Available
Abstract
The active suspension required energy input levels and the high component costs. In this work, the Limited bandwidth hydro-pneumatic active suspension (LBA) is used and it has all the advantages of active system except that the actuator is limited at 6 Hz bandwidth, thus making it economical on power consumption and cost. The aim of this study is to develop four degrees of freedom (DOF) half vehicle model including the Limited-Bandwidth hydro-pneumatic active suspension system. The LQR and Fuzzy Logic Control (FLC) are used to evaluate the vehicle ride performance for Limited bandwidth hydro-pneumatic active suspension. The result indicated that the limited-bandwidth Hydro-pneumatic active suspension with LQR gives better ride performance compared with the passive suspension system. On the other hand, the FLC improved the vehicle ride performance in terms of front and rear body acceleration by 4% and 7.5% respectively compared with limited-bandwidth Hydro-pneumatic with LQR. The power demand for limited-bandwidth Hydro-pneumatic with LQR and FLC are evaluated and discussed.
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