Proportional derivitive control system with low speed offset compensation
US5616998A · kind A · utility
4Cited by
7References
16Claims
0Family size
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Key dates
| Filing date | Sep 5, 1995 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Sep 5, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B11/42
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A robot control system generates an offset signal which is added to the control signal for a robot when the velocity error is small. The offset signal is, in each case, based on a previous offset signal added to the then current robot control signal which is updated regularly on discrete increments of time when the velocity error is small. Thus, with the control system when the velocity error is low adds the control signal to the then current offset signal to provide a corrected signal to control the robot. When the velocity error signal is high, the generation and addition of the offset signal is disabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.