Actuator predictive system
US9128008B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Mar 18, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/2869
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An actuator system includes a piston-cylinder arrangement including a piston that is movable with respect to a cylinder. A first flow path is in fluid communication with the piston-cylinder arrangement and a second flow path is in fluid communication with the piston-cylinder arrangement. A control system is operable to fluidly connect the first flow path to a source of high-pressure fluid and to connect the second flow path to a drain to move the piston in a first direction. A pressure sensor is fluidly connected to the first flow path and is operable to measure sufficient pressure data during the movement of the piston to generate a pressure versus time curve. The control system is operable to compare the generated pressure versus time curve to a known standard pressure versus time curve stored in the control system to determine the condition of the piston-cylinder arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.