Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020115400 - METHOD FOR CONTROL OF A CYLINDER

Publication Number WO/2020/115400
Publication Date 11.06.2020
International Application No. PCT/FR2019/052811
International Filing Date 26.11.2019
IPC
F15B 19/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
19Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere
CPC
F15B 19/005
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
19Testing; ; Calibrating; Fault detection or monitoring; Simulation or modelling of; fluid-pressure systems or apparatus not otherwise provided for
005Fault detection or monitoring
F15B 19/007
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
19Testing; ; Calibrating; Fault detection or monitoring; Simulation or modelling of; fluid-pressure systems or apparatus not otherwise provided for
007Simulation or modelling
F15B 2211/6336
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
2211Circuits for servomotor systems
60Circuit components or control therefor
63Electronic controllers
6303using input signals
6336representing a state of the output member, e.g. position, speed or acceleration
F15B 2211/857
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
2211Circuits for servomotor systems
80Other types of control related to particular problems or conditions
857Monitoring of fluid pressure systems
F15B 2211/8757
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
2211Circuits for servomotor systems
80Other types of control related to particular problems or conditions
875Control measures for coping with failures
8757using redundant components or assemblies
Applicants
  • SAFRAN AIRCRAFT ENGINES [FR]/[FR]
Inventors
  • LE BRUN, Christophe, Marc, Alexandre
  • YING, Charles
  • FERRER BELLOTI CARDIN, Alexis
Agents
  • DESORMIERE, Pierre-Louis
  • DAVID, Alain
  • HEALY, Erwan
  • LAIK, Eric
Priority Data
187253107.12.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) METHOD FOR CONTROL OF A CYLINDER
(FR) PROCEDE DE CONTROLE D' UN VERIN
Abstract
(EN)
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.
(FR)
Procédé de contrôle d'un vérin (12) comprenant des étapes selon lesquelles on fournit un vérin comprenant un piston (22), une servovalve (14) et un dispositif de mesure (16) comprenant au moins un premier capteur de position (28) et un second capteur de position (30), on réalise des mesures de position (X1,X2) du piston simultanément avec le premier capteur de position et le second capteur de position, on détermine au moins une première vitesse de déplacement (v1) du piston à partir des mesures de position du piston obtenues avec le premier capteur de position, on détermine au moins une seconde vitesse de déplacement (v2) du piston à partir des mesures de position du piston obtenues avec le second capteur de position, et on compare chacune des première et seconde vitesses déterminées de déplacement (v1,v2) du piston avec une vitesse de déplacement modélisée (vmod) ou prédéterminée du piston, de manière à identifier le capteur de position le plus fiable.
Latest bibliographic data on file with the International Bureau