Energy efficient throttling control of a multi-pressure system using a genetic algorithm and model predictive control

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The energy efficiency of hydraulic cylinder drives can be increased by replacing the actuator with a multi-chamber cylinder, utilising multiple supply lines with unique pressures or a combination of the concepts. Previous studies have demonstrated significant energy savings using a cascaded control system, which requires velocity feedback to stabilise the system. To avoid the need of position or velocity sensors in harsh conditions of mobile machines, this article presents a throttling control scheme, which achieves good energy efficiency on multi-pressure systems without velocity feedback. A simulation study was performed to determine the efficiency of the system, robustness against load variations and the effect of valve response time on performance.

Original languageEnglish
Pages (from-to)406-417
Number of pages12
JournalProceedings of the Institution of Mechanical Engineers. Part I: Journal of Systems and Control Engineering
Volume236
Issue number2
Early online dateJul 2021
DOIs
Publication statusPublished - Feb 2022
Publication typeA1 Journal article-refereed

Keywords

  • cylinder control
  • energy efficiency
  • genetic algorithm
  • model predictive control
  • Multi-pressure system

Publication forum classification

  • Publication forum level 1

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Mechanical Engineering

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