Hybrid electromagnetic/friction actuation system
US6702404B2 · kind B2 · utility
19Cited by
26References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2001 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Mar 10, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L7/26
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An actuation system controls the flow of electric power to electromagnetic actuators to control motion or movement of at least two shafts or bodies. The system is preferentially applied to braking systems in automobiles and trucks, and may also be applied to other areas, including clutches and drive systems for other power transmission purposes. The electromagnetic retarders may also be used in combination with friction brake systems. Principal advantages of the combination system are the reliability and simplicity of friction and hydraulic components, and the lower wear and longer life of electromagnetic components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.