Magnetorheological fluid brake and force-feedback system for a steering mechanism
US6910699B2 · kind B2 · utility
14Cited by
26References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 30, 2003 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Nov 6, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D57/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A magnetorheological fluid brake utilizing a positive displacement fluid pump adapted to pump a magnetorheological fluid through a viscosity regulator. The viscosity regulator is adapted to controllably vary the viscosity of the magnetorheological fluid, altering the pumping restriction against the fluid pump, resulting in variable resistance to pump shaft rotation relative to the pump housing. An electronic steering system for a work vehicle utilizing the illustrated magnetorheological brake as a resistance device to provide tactile feedback as a function of steering shaft rotational position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.