An electro-pneumatic force tracking system using fuzzy logic based volume flow control

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dc.contributor.authorLin, Zhonglin
dc.contributor.authorWei, Qingyan
dc.contributor.authorJi, Runmin
dc.contributor.authorHuang, Xianghua
dc.contributor.authorYuan, Yuan
dc.contributor.authorZhao, Zhiwen
dc.date.accessioned2019-12-16T10:07:02Z
dc.date.available2019-12-16T10:07:02Z
dc.date.issued2019-10-22
dc.description.abstractIn this paper, a fuzzy logic based volume flow control method is proposed to precisely control the force of a pneumatic actuator in an electro-pneumatic system including four on-off valves. The volume flow feature, which is the relationship between the duty cycle of the pulse width modulation (PWM) period, pressure difference, and volume flow of an on-off valve, is based on the experimental data measured by a high-precision volume flow meter. Through experimental data analysis, the maximum and minimum duty cycles are acquired. A new volume flow control method is introduced for the pneumatic system. In this method, the raw measured data are innovatively processed by a segmented, polynomial fitting method, and a newly designed procedure for calculating the duty cycle is adopted. This procedure makes it possible to combine the original data with fuzzy logic control (FLC). Additionally, the method allows us to accurately control the minimum and maximum opening pulse width of the valve. Several experiments are performed based on the experimental data, instead of the traditional theoretical models. Only 0.141 N (1.41%) overshoot and 0.03 N (0.03%) steady-state error are observed in the step response experiment, and 0.123 N average error is found while tracking the sine wave reference.en_UK
dc.identifier.citationLin Z, Wei Q, Ji R, et al., (2019) An electro-pneumatic force tracking system using fuzzy logic based volume flow control. Energies, Volume 12, Issue 20, October 2019, Article number 4011en_UK
dc.identifier.issn1996-1073
dc.identifier.urihttps://doi.org/10.3390/en12204011
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/14836
dc.language.isoenen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectelectro-pneumatic systemen_UK
dc.subjectforce trackingen_UK
dc.subjectfuzzy logic controlen_UK
dc.subjecton-off valveen_UK
dc.subjectvolume flow featureen_UK
dc.titleAn electro-pneumatic force tracking system using fuzzy logic based volume flow controlen_UK
dc.typeArticleen_UK

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