EDC draft force based ride controller
US6196327A · kind A · utility
15Cited by
29References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1999 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Apr 1, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B63/112
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A system for reducing tractor pitching is disclosed, including a tractor with a hitch couplable to an implement, a force transducer that provides a force signal indicative of a force applied to the hitch by an implement, a position transducer to provide a position signal indicative of a position of the hitch, a hydraulic actuator to raise and lower the hitch, a control valve that responds to the force and position transducers to generate a valve signal, where the control circuit receives the force and position signals and drives a pitch-reducing control valve signal therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.