Health monitoring for proportional actuators
US11143328B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2019 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Nov 8, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D2045/0085
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A computer-implemented method for determining a scheduled maintenance session for a proportional actuator includes transmitting a command signal to a controller of the proportional actuator and generating, using the controller, a drive signal for controlling the proportional actuator using the command signal. The position of a component actuator of the proportional actuator is changed, on the basis of the drive signal, and the position of the component actuator is measured, using a sensor, and a position feedback signal is generated on the basis of the measurement. A condition indicator is estimated, with a processor, using only one of the command signal, the drive signal, or the position feedback signal. A health indicator is estimated, with the processor, using the condition indicator, and a scheduled maintenance session of the proportional actuator is determined, with the processor, using the health indicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.