High-Linear Digital Hydraulic Valve Control by an Equal Coded Valve System and Novel Switching Schemes

Miika Paloniitty, Matti Linjama

    Research output: Contribution to journalArticleScientificpeer-review

    14 Citations (Scopus)
    151 Downloads (Pure)

    Abstract

    This study proposes a novel digital hydraulic valve system using multiple equal size on/off valves and a circulating switching control, with an aim to increase the resolution and the linearity of the digital hydraulic valve systems. The solution is founded on the equal coded valve system concept which represents a recent development in the digital hydraulic valve technology. The circulating switching control algorithm is used to overcome non-linearities occurring in the typical non-circulating switching control and to decrease the operating frequency of single on/off valves. As a result, a substantial improvement in tracking control performance is demonstrated with 8+8 parallel connected valves. The results verify that compact, robust and high-performance valve control can be realized.
    Original languageEnglish
    Pages (from-to)258-269
    JournalProceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering
    Volume232
    Issue number3
    Early online date4 Jan 2018
    DOIs
    Publication statusPublished - 2018
    Publication typeA1 Journal article-refereed

    Publication forum classification

    • Publication forum level 1

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