EP 3891404 A1 20211013 - METHOD FOR CONTROL OF A CYLINDER
Title (en)
METHOD FOR CONTROL OF A CYLINDER
Title (de)
VERFAHREN ZUR STEUERUNG EINES ZYLINDERS
Title (fr)
PROCEDE DE CONTROLE D' UN VERIN
Publication
Application
Priority
- FR 1872531 A 20181207
- FR 2019052811 W 20191126
Abstract (en)
[origin: WO2020115400A1] The invention relates to a method for control of a cylinder (12), comprising the following steps: providing a cylinder that has a piston (22), a servo valve (14), and a measuring device (16) that comprises at least one first position sensor (28) and one second position sensor (30); taking position measurements (X1, X2) of the piston simultaneously with the first position sensor and with the second position sensor; determining at least one first travel speed (v1) of the piston on the basis of the position measurements of the piston taken with the first position sensor; determining at least one second travel speed (v2) of the piston on the basis of the position measurements of the piston taken with the second position sensor; and comparing each of the first and second determined travel speeds (v1, v2) of the piston with a modeled (vmod) or a predetermined travel speed of the piston so as to ascertain which is the more reliable position sensor.
IPC 8 full level
F15B 19/00 (2006.01)
CPC (source: EP US)
F15B 19/005 (2013.01 - EP US); F15B 19/007 (2013.01 - US); F15B 19/007 (2013.01 - EP); F15B 2211/6336 (2013.01 - EP US); F15B 2211/857 (2013.01 - EP US); F15B 2211/8757 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020115400 A1 20200611; BR 112021009752 A2 20210817; CA 3120212 A1 20200611; CN 113167304 A 20210723; CN 113167304 B 20240625; EP 3891404 A1 20211013; FR 3089578 A1 20200612; FR 3089578 B1 20210129; JP 2022510453 A 20220126; JP 7387738 B2 20231128; US 11434943 B2 20220906; US 2022034336 A1 20220203
DOCDB simple family (application)
FR 2019052811 W 20191126; BR 112021009752 A 20191126; CA 3120212 A 20191126; CN 201980080593 A 20191126; EP 19868181 A 20191126; FR 1872531 A 20181207; JP 2021532049 A 20191126; US 201917296491 A 20191126