NDLI: Automated modelling of cartridge valve flow mapping

Content Provider	IEEE Xplore Digital Library
Author	Song Liu Bin Yao
Copyright Year	2005
Description	Author affiliation: Sch. of Mechanical Eng., Purdue Univ., West Lafayette, IN (Song Liu; Bin Yao)
Abstract	Proportional poppet-type cartridge valves are the key elements of the energy saving programmable valves, which have been shown in our previous studies to be able to achieve excellent motion control performance while significantly saving energy usage. Unlike costly conventional four-way valves, the cartridge valve has simple structure and is easy to manufacture, but its complicated mathematical model makes the controller design and implementation rather difficult Our previous works used either an off-line individually calibrated or manufacturer supplied flow mappings as the model of the cartridge valves. Neither method is ideal for industrial wide applications as the former method is time-consuming and needs trained engineers with additional flow sensors while the later leads to significantly degraded control performance due to the inaccuracy of the manufacturer supplied flow mappings. To solve this practically very significant problem, this paper focuses on the automated modelling of the cartridge valve flow mapping without using any extra sensors and removing the valves from the system. The estimation of the flow mapping is based on the pressure dynamics in the hydraulic cylinder with consideration of some unknown parameters like effective bulk modulus of fluid. Experimental results are obtained to illustrate the effectiveness and practicality of the proposed novel automated modelling method
Starting Page	789
Ending Page	794
File Size	670450
Page Count	6
File Format	PDF
ISBN	0780390474
DOI	10.1109/AIM.2005.1511079
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-07-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Valves Virtual manufacturing Mathematical model Motion control Motion planning Industrial control Industrial training Manufacturing industries Degradation Automatic control
Content Type	Text
Resource Type	Article

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