A dual-fuzzy pressure compensation based symmetric control scheme of single-rod electro-hydraulic actuator

Li Peng Wang, Jun Zheng Wang, Yu Dong He, Jiang Bo Zhao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

In hydraulic robots, single-rod electro-hydraulic actuator is widely employed for fast response, small size-to-power ratio, large output force and compact size. The differences of open loop gains and other parameters make the dynamic characteristics of two moving directions asymmetric in symmetric valve controlled asymmetric cylinder system. To ensure robots moving smoothly and improve control precision, a novel pressure compensation based symmetric control scheme is proposed. Pressure feedback algorithm is mathematically proved feasible. Therefore, a displacement and pressure signals fused fuzzy PID controller is designed. Simulation results verify the feasibility and validity for compensating the asymmetric problems.

Original languageEnglish
Title of host publicationManufacturing Science and Technology (ICMST2013)
Pages379-384
Number of pages6
DOIs
Publication statusPublished - 2013
Event4th International Conference on Manufacturing Science and Technology, ICMST 2013 - Dubai, United Arab Emirates
Duration: 3 Aug 20134 Aug 2013

Publication series

NameAdvanced Materials Research
Volume816-817
ISSN (Print)1022-6680

Conference

Conference4th International Conference on Manufacturing Science and Technology, ICMST 2013
Country/TerritoryUnited Arab Emirates
CityDubai
Period3/08/134/08/13

Keywords

  • Electro-hydraulic system
  • Pressure compensation
  • Single-rod cylinder
  • Symmetric control

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