A simulation of digital load sensing system for water hydraulics

Pha N. Pham, Kazuhisa Ito

研究成果: Conference contribution

抄録

Recently, the application of water hydraulics has been increasing in many fields as shown in [1], [2], [3]. However, water hydraulic systems using servo/proportional valves have inherent disadvantages such as low energy efficiency and high installation cost, which prevent water hydraulics from applying widely. Water hydraulic variable displacement pump does not exist in the market and therefore supply pressure of water hydraulic systems cannot be adjusted by using load sensing, this is a very important reason for low energy efficiency of water hydraulic systems. This study aims to introduce a novel digital load sensing (DLS) that uses a set of On/Off valves assembled to a servo system for reducing much surplus pressure thanks to the supply pressure track a required pressure. By using of fast On/Off valves, the supply pressure can be tracked the reference pressure quickly, this ensures that the energy consumption of the system is reduced much while the control performance of the load still remains in high quality. The simulation results showed that by applying the DLS system, the energy efficiency can increase nearly double in comparison with a system that does not use DLS.

本文言語English
ホスト出版物のタイトル1st IEEE International Symposium on Systems Engineering, ISSE 2015 - Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ページ118-123
ページ数6
ISBN(印刷版)9781479919208
DOI
出版ステータスPublished - 2015 10 21
イベント1st IEEE International Symposium on Systems Engineering, ISSE 2015 - Rome, Italy
継続期間: 2015 9 282015 9 30

Other

Other1st IEEE International Symposium on Systems Engineering, ISSE 2015
CountryItaly
CityRome
Period15/9/2815/9/30

ASJC Scopus subject areas

  • Mechanical Engineering
  • Control and Systems Engineering

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