2022 | OriginalPaper | Buchkapitel
13. Oil Leakage Analysis for an Active Anti-Roll Bar System of Heavy Vehicles
verfasst von : Vu Van Tan, Vo Quoc Dai, Olivier Sename, Reza Nakhaie Jazar
Erschienen in: Nonlinear Approaches in Engineering Application
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Abstract
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The internal leakage inside the electronic servo-valve is analysed in detail and characterized by the total flow pressure coefficient. Thanks to this leakage, it is important that the active anti-roll bar system can act in a self-protection capacity when the controller fails.
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An H ∞∕LPV active anti-roll bar controller for the fully integrated model is synthesized by using the grid-based LPV approach. Here, the forward velocity is considered as the varying parameter to adapt to the different types of heavy vehicle movements.
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The simulation results indicate that the internal leakage inside the electronic servo-valve drastically affects the characteristics of the closed-loop system. The two main objectives (enhancing roll stability and avoiding the saturation of the actuators) are simultaneously satisfied when the total flow pressure coefficient K P is chosen in the interval \([5\times 10^{-15}, 4\times 10^{-10}]\ \frac {{m}^5}{{Ns}}\).
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This analysis is the basis for further studies of the fault tolerant control and fault accommodation on the active anti-roll bar system of heavy vehicles using the ESVH actuators in order to improve the performance of the active anti-roll bar system.