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1. (WO2017198963) ESTIMATION OF A PHYSICAL QUANTITY ON EXIT FROM A HYDRAULIC CIRCUIT

Pub. No.:    WO/2017/198963    International Application No.:    PCT/FR2017/051220
Publication Date: Fri Nov 24 00:59:59 CET 2017 International Filing Date: Sat May 20 01:59:59 CEST 2017
IPC: G01M 15/02
F16H 61/00
G01M 15/14
Applicants: ARIANEGROUP SAS
Inventors: LEMOINE, Nicolas
Title: ESTIMATION OF A PHYSICAL QUANTITY ON EXIT FROM A HYDRAULIC CIRCUIT
Abstract:
A method for estimating at least one physical quantity on exit from a hydraulic circuit comprising an entry node (A), an exit node (D), at least one internal node (B, C) and hydraulic components disposed between the entry node and the exit node, the method comprises: - a step of obtaining a numerical model of the hydraulic circuit, said model comprising a global transfer function of predetermined form whose coefficients are determined on the basis of intermediate transfer functions of each segment of the hydraulic circuit delimited by two successive nodes, each intermediate transfer function giving the relation between physical quantities on entry and physical quantities on exit from the segment that it represents; - a step of estimating the physical quantity on exit from the hydraulic circuit on the basis of the numerical model and of an entry value of at least one physical quantity and/or of operating parameters of the hydraulic circuit.