A COMBINED MULTI-PRESSURE SWITCHED INERTANCE HYDRAULIC CONTROL CONCEPT OF A DIFFERENTIAL CYLINDER
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Published:2022-09-27
Issue:3
Volume:2022
Page:5775-5782
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ISSN:1803-1269
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Container-title:MM Science Journal
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language:
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Short-container-title:MM SJ
Author:
SCHEIDL RUDOLF, ,WOESS DANIEL,
Abstract
Control of hydraulic drives using more than two pressure lines is studied as a means for improving energy efficiency, e.g. for excavators or for hydraulic power take off from sea wave power plant systems. All combinations of switching n different pressure levels to a differential cylinder provide in general 2.n force levels. In order to facilitate forces between these levels for a proper motion control, this digital concept was combined with throttling control. This, of course, causes energetic losses. In this paper a combination of multi-pressure and switched inertance control is presented and studied theoretically by mathematical modelling and simulation. The integration of the switched inertance part requires only a pipeline as an inertance element and a so called “Mikota resonator” flow and pressure ripple suppression. Simulation results show a good motion control performance and an efficiency gain over intermediate force adjustment by throttling in load lifting.
Publisher
MM Publishing, s.r.o.
Subject
Electrical and Electronic Engineering,Industrial and Manufacturing Engineering,Mechanical Engineering,Automotive Engineering
Cited by
1 articles.
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