Hydrostatic transmission controls with alternative operating modes
US7310943B2 · kind B2 · utility
12Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2005 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Jun 8, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/6615
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydrostatic transmission on a tractor is operated by a microcontroller providing current commands to the hydrostatic transmission pump, and manual controls that provide signals to the microcontroller so the current commands cause the hydrostatic transmission to operate in either a first mode or a second mode. In the first or automatic mode the swash plate position may be continuously variable based on the position of a foot pedal. In the second or gear mode the swash plate may be moved to any of a plurality of discrete positions based on the position of a manually operable switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.