Autors: Mitov, A. S., Slavov, T. N., Kralev, J. K., Angelov, I. I.
Title: Robust Stability and Performance Investigation of Electrohydraulic Steering Control System
Keywords: lectrohydraulic system; H∞ ; LQG; Robust performance; Robust stability.

Abstract: The article introduces a robust stability and robust performance investigation of two embedded systems for control of electrohydraulic power steering in mobile machinery. They are based on advanced control techniques - linear-quadratic Gaussian (LQG) controller and H-infinity controller. The synthesis of the two controllers is performed via experimentally estimated SIMO state space model. The 30% input multiplicative uncertainty is introduced in estimated model. In this manner, a dead-band of proportional spool valve position is taken into account. This dead-band is constructively implemented to provide safety requirements of electrohydraulic steering. The robust stability and robust performance analysis are done by determining a structured singular value (μ) of the both closed-loop control systems, which are represented in M-Δ structure. The workability of the both systems are verified through simulation and real world experiments on laboratory test rig.

References

    Issue

    Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, vol. 382, pp. 386 - 400, 2021, Germany, Springer Science and Business Media Deutschland GmbH, DOI 10.1007/978-3-030-78459-1_29

    Copyright Springer Nature

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