Apparatus and method for FNR calibration and testing neutral safety switch thresholds in an agricultural windrower
US7783404B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2006 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Oct 12, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D69/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Calibration of an FNR lever, wherein signal outputs as the FNR lever is transitioned to and from the neutral position and through a range of positions, are determined. It is then determined whether the values are within expected norms. If not, a fault condition exists. The operator is also prompted to input acknowledgments when the FNR lever is at the fully rearward and forward positions. Signal values outputted by a neutral switch are sensed when the lever is initially moved to the neutral position, and at a predetermined time thereafter, to test a propulsion enable or latch relay which is to provide a predetermined output for a predetermined time after the lever moves into the neutral position, for transitioning of the system to neutral operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.