Header flotation system with computer control for a self-propelled windrower
US9043955B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Nov 26, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D41/141
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In one embodiment, a header control method for an agricultural machine, the method comprising receiving, through a graphical user interface, operator input corresponding to a first set point and a second set point for flotation pressures corresponding to independently controllable first and second header portions, respectively; and automatically causing first and second sets of hydraulic valves to increase or decrease pressure to the first or second header portions to meet or at least approximate the first and second set points, the first and second sets each comprising opposing-action hydraulic valves, the causing responsive to sensed pressure at respective first and second accumulators associated with respective first and second float cylinders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.