Auto calibrating electro hydraulic servo driver
US4920305A · kind A · utility
7Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1989 |
| Grant date | Apr 24, 1990 |
| Priority date | — |
| Expiry date | Feb 8, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D3/20
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An electro-hydraulic positioning system which has automatic calibration capabilities is disclosed. The system includes a microprocessor which accesses calibration parameters stored in a non-volatile memory unit. The microprocessor adjusts the position demand according to the stored calibration parameters. The system may be placed in an atuomatic calibration mode. In which case, update calibration parameters are automatically determined and stored. The system also includes a microcontroller which monitors system operating variables and reports deviations of the variables from expected values for same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.