Digital switched hydraulics

doi:10.1007/s11465-018-0509-7

Front. Mech. Eng.

2018, Vol. 13

Issue (2) : 225-231 https://doi.org/10.1007/s11465-018-0509-7

SHORT COMMUNICATION

Digital switched hydraulics

Min PAN(

), Andrew PLUMMER

Centre for Power Transmission and Motion Control, Department of Mechanical Engineering, University of Bath, BA2 7AY Bath, UK

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Abstract

This paper reviews recent developments in digital switched hydraulics particularly the switched inertance hydraulic systems (SIHSs). The performance of SIHSs is presented in brief with a discussion of several possible configurations and control strategies. The soft switching technology and high-speed switching valve design techniques are discussed. Challenges and recommendations are given based on the current research achievements.

Keywords digital hydraulics switched inertance hydraulic systems energy efficiency high-speed switching valve fluid-borne noise

Corresponding Author(s): Min PAN

Just Accepted Date: 15 January 2018 Online First Date: 26 February 2018 Issue Date: 16 March 2018

Cite this article:

Min PAN,Andrew PLUMMER. Digital switched hydraulics[J]. Front. Mech. Eng., 2018, 13(2): 225-231.

URL:

https://academic.hep.com.cn/fme/EN/10.1007/s11465-018-0509-7
https://academic.hep.com.cn/fme/EN/Y2018/V13/I2/225

Fig.1 Schematics of switched inertance hydraulic systems. (a) Flow booster configuration; (b) pressure booster configuration

Fig.2 The operation of switched inertance hydraulic systems. (a) Flow booster configuration; (b) pressure booster configuration

Fig.3 Schematic of a switched inertance hydraulic system in a four-port valve configuration

Fig.4 Schematics of hydraulic switching converters. (a) Buck-converter with an inertance tube; (b) buck-converter with a hydraulic motor

Fig.5 Buck-converters. (a) Buck-converter in a two-way mode; (b) hydraulic boost-buck-converter

Fig.6 Schematics of zero-voltage switching technique for switching buck convertors. (a) Electrical circuit; (b) hydraulic circuit

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