US 10,605,277 B2 · Method to automatically detect parameter for pressure dynamics control

Abstract

Systems and methods for auto-commissioning first and second valve assemblies associated with an actuator in an electro-hydraulic system are disclosed. In one method, a controller performs an automatic test protocol to determine a bulk modulus over fluid volume parameter used by the controller to control the valve assemblies. In one aspect, the test protocol can include pressurizing each side of the actuator to two different pressures with one of the first and second valve assemblies and blocking the other side of the actuator with the other of the first and second valve assemblies. The bulk modulus over fluid volume parameter for each valve assembly can be calculated based on recorded fluid pressures at the actuator and consumed flow at the first and second valve assemblies.

Claims20

Dependent claims

A method for determining a bulk modulus over fluid volume parameter for a valve controller, the method comprising the steps of:

(a) providing first and second valve assemblies, each valve assembly having at least one of a pressure sensor and a position sensor in communication with an electronic system controller, the valve assemblies being in fluid communication with the hydraulic actuator;
(b) pressurizing each side of the actuator to two different pressures with one of the first and second valve assemblies and blocking the other side of the actuator with the other of the first and second valve assemblies;
and
(c) calculating the bulk modulus over fluid volume parameter for the first and second valves based on fluid pressure at the actuator and consumed flow at the first and second valve assemblies.

1 more element

Dependencies are inferred from the claim text.

Method to automatically detect parameter for pressure dynamics control

Life of this patent

Method to automatically detect parameter for pressure dynamics control

Life of this patent

Abstract

Claims20