Title :
Gain scheduled velocity and force controllers for the electro-hydraulic servosystem
Author :
Sugiyama, Takahiro ; Uchida, Kenko
Author_Institution :
Eng. Group, Moog Japan Ltd., Kanagawa, Japan
Abstract :
The load variation of the electro-hydraulic servosystem causes degradation of the control characteristic. This is because the flow characteristic of the flow control valve depends on the load condition. We propose the flow calculation formula to have continuous flow between turbulent and laminar flow to compose the linear plant model with a scheduling parameter. Then, gain scheduled controllers for the velocity and hydraulic force control are designed.
Keywords :
control system synthesis; electrohydraulic control equipment; flow control; force control; laminar to turbulent transitions; servomechanisms; velocity control; control characteristic; electro-hydraulic servosystem; flow characteristic; flow control valve; gain scheduled force controller; gain scheduled velocity controller; laminar flow; load variation; turbulent and flow; Degradation; Force control; Injection molding; Job shop scheduling; Load management; Pressure control; Processor scheduling; Servosystems; Valves; Velocity control;
Conference_Titel :
American Control Conference, 2002. Proceedings of the 2002
Print_ISBN :
0-7803-7298-0
DOI :
10.1109/ACC.2002.1025344
