Hysteresis compensation control of an actuator
US11237532B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2020 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Mar 10, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B19/007
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A hysteresis compensation systems and methods. Hysteresis compensation is provided using a known response curve for each of a plurality of different state conditions. In response to determining that a state transition has occurred (i.e., from one response curve to another), the system generates a transition response curve extending from an origin point on a first response curve to an end point on a second response curve based at least in part on a known or determined difference between the input value of the origin point and the input value for the end point. In some embodiments, this difference is determined experimentally and, in others, it is estimated based on measured feedback. Hysteresis compensation is then provided by identifying an input value on the transition response curve that corresponds to a target system output value for the received indicated input value (e.g., as defined by a reference curve).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.