An Optimal Continuous Time Control Strategy for Active Suspensions with Preview |
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| Authors: | RGM Huisman FE Veldpaus HJM Voets JJ Kok |
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| Institution: |
a Division of Fundamentals, Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, MB, The Netherlands
b Dynamic Analysis and Noise Department, Applied Research, DAF Trucks, Eindhoven, PT, The Netherlands |
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| Abstract: | A continuous time control strategy for an active suspension with preview, based on optimal control theory, is presented. No approximation is needed to model the time delay between the excitation of the front and the rear wheels. The suspension is applied to a two DOF model of the rear side of the tractor of a tractor-semitrailer. The purpose of the suspension is to reduce either the required suspension working space or the maximum absolute acceleration of the sprung mass, without an increase of the dynamic tire force variation. For a step function as road input, reductions of 65% and 55%, respectively, are possible compared with a passive suspension. |
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