Autors: Mitov, A. S., Slavov, T. N., Kralev, J. K., Angelov, I. I.
Title: Identification of electro-hydraulic load-sensing servo system, Engineering for Rural Development
Keywords: Electro-hydraulic; Load-sensing; Servo system; System identification.

Abstract: The paper presents the results of the identification procedure for obtaining a model of an electrohydraulic load-sensing servo position system for power steering of mobile machinery. The studied system consists of an axial-piston variable displacement pump that supplies the load-sensing electro-hydraulic power steering system. The pump is equipped with a hydro-mechanical pressure controller type DR, which makes it possible to realize a meter-in flow control circuit with the load-sensing function. When the external resistance force acting on the cylinder piston increases, the pump controller limits the displacement volume, and hence the flow rate supplied to the system. The purpose of the identification is to reach a linear state-space model that accurately describes the dynamic behaviour of the system. The system is represented with one input and two outputs. The output signals are measurable variables: the spool position in the proportional valve and the piston position of the servo



    Engineering for Rural Development, vol. 20, pp. 1648 - 1654, 2021, Latvia, DOI 10.22616/ERDev.2021.20.TF356

    Copyright Latvia University of Life Sciences and Technologies

    Вид: статия в списание, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus и Web of Science