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Lucente G., Rossi C.
"Multi-Objective Control of Semi-Active Suspension Systems"
Type Conference
Author(s) Lucente G., Rossi C.
Title Multi-Objective Control of Semi-Active Suspension Systems
Editor ISIE 2005
Keywords Automotive, Active Suspensions, Modelling, Control
Automotive industry pays a great attention on the study and implementation of active and semi-active suspension systems in commercial cars. This paper focuses on the control of a semi-active damper in order to achieve the improvement of ride comfort without a significant degradation of vehicle handling. The system under investigation is represented by the vertical dynamics of the whole vehicle, which can be studied by using the reduced quarter car and half car models. The actuation system dynamics and nonlinearities are taken into account for the derivation of the controllers. The control design is based on multi-objectives performance indices in order to fulfill both the control targets. Two controller architectures are discussed in this paper: the first is based on H infinity optimization; the second is a nonlinear controller based on an extension of the sky-hook strategy. Simulations in various conditions are used to show the effectiveness of the controllers proposed with respect to standard control strategies.
Document 830f.tmp.Document.pdf ( bytes)
Year 2005

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