Controller for an agricultural machine
US11525940B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2018 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Jul 20, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D75/18
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A controller for detecting an unwanted object in an agricultural machine. The agricultural machine includes a pair of rollers for receiving crop material therebetween. The pair of rollers define a variable roller opening therebetween. The controller is configured to: receive a roller-opening-value that is representative of the size of the roller opening; determine a strength-value based on the roller-opening-value and a roller-speed-value, wherein the roller-speed-value is representative of the rate of change of the roller-opening-value, with respect to time; compare the strength-value with a threshold-value; and if the strength-value exceeds the threshold-value, then provide an output signal that is indicative of an unwanted object being detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.