• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2025, Vol. 61 ›› Issue (4): 290-301.doi: 10.3901/JME.2025.04.290

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Research Status and Prospect on the Control Method of High Speed on/off Valve

ZHONG Qi1,2,3, XU Enguang1,3, JIA Tiwei1,3, WANG Junxian1,3, YANG Huayong2, LI Yanbiao1,3   

  1. 1. College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023;
    2. State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027;
    3. Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023
  • Received:2024-03-02 Revised:2024-09-14 Online:2025-02-20 Published:2025-04-14

Abstract: High speed on/off valve(HSV), the core control component of digital hydraulic system(DHS), has the advantages of compact structure, high frequency response and strong anti-pollution ability, so that it is widely applied in aerospace, engineering machinery, military equipment, and other important fields. The dynamic performance of HSV determines the response speed and control accuracy of DHS. For the existing HSV, optimizing the control method is the most effective and economical way to improve its dynamic performance. The research status and progress of HSV control algorithm are comprehensively analyzed. In order to improve the operation performance of HSV, its control strategy tends to multi-voltage algorithm, and higher requirements for voltage matching at each stage is put forward. Although the existing multi-voltage control algorithm can achieve both fast dynamic response and low energy driving by optimizing the switching initial current of HSV. However, the fast dynamic response intensifies the impact between the valve bodies, resulting in big noise and severe vibration of HSV, and significantly shortens its service life. With the integration of microelectronics, computers and sensing technologies, the multi-voltage control algorithm of HSV will develop towards a more refined and intelligent direction, and balance the key characteristics of fast response, low power losses, small temperature rising and long service life.

Key words: digital hydraulic, high speed on/off valve, control algorithm

CLC Number: