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1. (WO2018162243) METHOD FOR ACTIVATING A HYDRAULIC ACTUATOR DRIVE, CONTROL DEVICE AND ACTUATOR DRIVE CONTROLLER

Pub. No.:    WO/2018/162243    International Application No.:    PCT/EP2018/054354
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Fri Feb 23 00:59:59 CET 2018
IPC: F15B 20/00
F15B 19/00
F15B 5/00
Applicants: VOITH PATENT GMBH
Inventors: ORTNER, Christian
HOFMANN, Friedrich
Title: METHOD FOR ACTIVATING A HYDRAULIC ACTUATOR DRIVE, CONTROL DEVICE AND ACTUATOR DRIVE CONTROLLER
Abstract:
The invention relates to a method for activating a hydraulic actuator drive comprising an actuator, the position of which is adjusted by at least one electrohydraulic proportional valve, which has at least one electrical input and at least one hydraulic output, having the following steps: - detecting the position of the actuator and generating therefrom a position actual value; - defining a position target value in dependence upon a specification for a desired position of the actuator and eliminating a target/actual value difference by regulation with the at least one electrohydraulic proportional valve such that the actuator adopts a position corresponding to the position target value. The method according to the invention is characterised in that the position target value is also varied if the specification for a desired position of the actuator is not changed.