Research Article
Robust Stability and Performance Investigation of Electrohydraulic Steering Control System
@INPROCEEDINGS{10.1007/978-3-030-78459-1_29, author={Alexander Mitov and Tsonyo Slavov and Jordan Kralev and Ilcho Angelov}, title={Robust Stability and Performance Investigation of Electrohydraulic Steering Control System}, proceedings={Future Access Enablers for Ubiquitous and Intelligent Infrastructures. 5th EAI International Conference, FABULOUS 2021, Virtual Event, May 6--7, 2021, Proceedings}, proceedings_a={FABULOUS}, year={2021}, month={6}, keywords={Robust stability Robust performance LQG H Electrohydraulic system}, doi={10.1007/978-3-030-78459-1_29} }- Alexander Mitov
Tsonyo Slavov
Jordan Kralev
Ilcho Angelov
Year: 2021
Robust Stability and Performance Investigation of Electrohydraulic Steering Control System
FABULOUS
Springer
DOI: 10.1007/978-3-030-78459-1_29
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-quadraticGaussian(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 inM-Δstructure. The workability of the both systems are verified through simulation and real world experiments on laboratory test rig.
