Method and system for determining characteristic parameters of a hydraulic network

US9864383B2 · kind B2 · utility

Assignee

• BELIMO Holding AG · CH

Inventors

• Forest Reider · Wetzikon, CH
• Marc Thuillard · Uetikon am See, CH

Key dates

• Filing date: Apr 21, 2015
• Grant date: Jan 9, 2018
• Expiry date: Apr 5, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G05D23/19
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A hydraulic network (1) having plural parallel zones (Z1, Z2) with a regulating valve (V1, V2) in each zone for regulating a flow of fluid (φ1, φ2) through respective zones. Characteristic parameters of the hydraulic network (1) include static flow capacity values (Kex,a, Kex,b) of the zones. Measurement data sets are recorded which include a determined value of a hydraulic system variable of the hydraulic network (1), e.g. the total flow (φtot) or the system pressure (ΔP), and valve positions of the regulating valves (V1, V2) set for the determined value of the hydraulic system variable. The characteristic parameters are calculated from plural measurement data sets, by grouping related measurement data sets, which include the same value of the hydraulic system variable but different valve positions, and by using the flow capacity (Kvalve,a, Kvalve,b) of the regulating valves (V1, V2) at the valve positions included in the data sets.