Bernhard Manhartsgruber, Rudolf Scheidl,
"Nonlinear Control of Hydraulic Servo Drives Based on a Singular Perturbation Approach"
, in C. R. Burrows and K. A. Edge: Bath Workshop on Power Transmission and Motion Control, September 9th-11th 1998, Bath, UK, 9-1998, ISBN: 1-86058-134-X
Nonlinear Control of Hydraulic Servo Drives Based on a Singular Perturbation Approach
Sprache des Titels:
Bath Workshop on Power Transmission and Motion Control, September 9th-11th 1998, Bath, UK
The excellent dynamic capabilities of hydrostatic drives with a conventional linear control design are bought at the expense of a poor energetic efficiency. This paper presents a novel approach towards the control of motion of a heavy mass driven by a hydraulic cylinder with a fast valve. The dynamics of the drive are described by a singularly perturbed system of ordinary differential equations. A singular perturbation analysis of this mathematical model results in the suggested control method. Special attention is paid to the compensation of the dry friction at the hydraulic cylinder.