Comparative Performance Analysis of Active and Semi-active Suspensions with Road Preview Control (CROSBI ID 681835)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Cvok, Ivan ; Deur, Joško ; Tseng, Eric ; Hrovat, Davor
engleski
Comparative Performance Analysis of Active and Semi-active Suspensions with Road Preview Control
The paper presents a comparative performance analysis of passive, active and semi-active suspensions with various optimal control system settings. The active suspension is controlled by a linear quadratic regulator (LQR) in combination with road preview control, while the semi-active suspension is controlled by a clipped-optimal LQR approach. The LQR cost function includes three conflicting criteria related to ride comfort, vehicle handling, and suspension stroke limits. The trade-off between these three criteria is assessed by using covariance analysis, i.e. by comparing standard deviations of the criteria-reflected system outputs with respect to stochastic road profile input. Further comparative analyses are based on frequency responses of linear quarter-car model and time responses of nonlinear full-car suspension model. The analysis results show that for some not-too-soft settings semi-active suspensions with road preview control can outperform active suspensions without road preview, while the best overall performance is achieved by using fully active suspension with road preview control. Time responses of a full- car model, obtained in an advanced simulation environment, demonstrate that controllers based on simple, quarter-car model can be successfully applied to nonlinear, full-car model for improving ride comfort and vehicle handling.
active suspension ; semi-active suspension ; optimal control ; road preview
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Podaci o prilogu
1808-1818.
2020.
objavljeno
10.1007/978-3-030-38077-9_206
Podaci o matičnoj publikaciji
Advances in Dynamics of Vehicles on Roads and Tracks: Proceedings of the 26th Symposium of the International Association of Vehicle System Dynamics, IAVSD 2019, August 12-16, 2019
Klomp, Matthijs ; Bruzelius, Fredrik ; Nielsen, Jens ; Hillemyr, Angela
Cham: Springer
978-3-030-38077-9
Podaci o skupu
Nepoznat skup
predavanje
29.02.1904-29.02.2096