Method for automatically setting responsiveness parameters for motion control systems
US9690261B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2013 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Jan 7, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B11/01
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Robustly stabilizing controller bandwidth for a controlled mechanical system is determined as a function of the system's estimated inertia and dominant system parameters that define constraints on the bandwidth. In one or more embodiments, a bandwidth model is derived that defines a relationship between robustly stabilizing controller bandwidth and system gain over a range of reasonable system uncertainties. Using the model, a suitable controller bandwidth can be determined for a given motion control system given only estimates of the system gain and the dominant parameters(s) that constrain the bandwidth. In an example two-inertia system, the system gain and dominant parameter can comprise system inertia and mechanical coupling stiffness, respectively. Accordingly, estimates of the system inertia and coupling stiffness can be provided to the system, which determines a suitable controller bandwidth for the motion control system characterized by the estimates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.