0
research-article

Adaptive and Nonlinear Control of Discharge Pressure for Variable Displacement Axial Piston Pumps

[+] Author and Article Information
Janne Koivumäki

Laboratory of Automation and Hydraulics (AUT) Tampere University of Technology (TUT) Korkeakoulunkatu 6, 33720 Tampere, Finland
janne.koivumaki@tut.fi

Jouni Mattila

Laboratory of Automation and Hydraulics (AUT) Tampere University of Technology (TUT) Korkeakoulunkatu 6, 33720 Tampere, Finland
jouni.mattila@tut.fi

1Corresponding author.

ASME doi:10.1115/1.4036537 History: Received April 14, 2016; Revised March 09, 2017

Abstract

This paper proposes, for the first time without using any linearization or order-reduction, an adaptive and model-based discharge pressure control design for the variable displacement axial piston pumps (VDAPPs), whose dynamical behaviours are highly nonlinear and can be described by a fourth-order differential equation. The rigorous stability proof, with an asymptotic convergence, is given for the entire system. In the proposed novel controller design method, the specifically designed stabilizing terms constitute an essential core to cancel out all the stability-preventing terms. The experimental results reveal that rapid parameter adaptation significantly improves the feedback signal tracking precision compared to a known-parameter controller design. In the comparative experiments, the adaptive controller design demonstrates the state-of-the-art discharge pressure control performance, enabling a possibility for energy consumption reductions in hydraulic systems driven with VDAPP.

Copyright (c) 2017 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In