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Nonlinear control of a variable displacement axial piston pump
Author(s) -
Fuchshumer Franz,
Kugi Andreas
Publication year - 2006
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200610382
Subject(s) - control theory (sociology) , nonlinear system , solenoid valve , feed forward , controller (irrigation) , piston (optics) , backstepping , solenoid , displacement (psychology) , engineering , control engineering , mathematics , computer science , physics , control (management) , mechanical engineering , adaptive control , psychology , agronomy , optics , quantum mechanics , artificial intelligence , wavefront , psychotherapist , biology
In this contribution a mathematical model of a variable displacement axial piston pump controlled by a solenoid valve is derived. For the purpose of a controller design the mathematical model is simplified using singular perturbation arguments. The goal of the controller design is to track prescribed trajectories in the load pressure for arbitrary unknown load conditions. The control concept being proposed comprises a feedforward controller and a nonlinear backstepping controller combined with a load estimator for the trajectory error system. The feasibility of this control concept is shown by means of measurements on a test‐stand. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)