Dynamic supplemental downforce control system for planter row units
US8634992B2 · kind B2 · utility
89Cited by
33References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2011 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Jan 6, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A dynamic supplemental downforce control system for a planter row unit. The system includes closed-loop feedback circuit that cooperates with a downforce actuator to dynamically control fluid flow to the downforce actuator to maintain balance between the actual gauge wheel downforce and a desired gauge wheel downforce during planting operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.