Electromagnetic differential speed control system for a fluid coupling device
US8627936B2 · kind B2 · utility
5Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2007 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Jan 16, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2500/5114
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A speed monitoring system (6) for a fluid-coupling device (10) includes a hub (44) and a ring magnet (220). The hub (44) rotates at a first speed that is proportional to an input clutch speed of a fluidically engageable input member. The ring magnet (220) rotates at a second speed that is proportional to an output clutch speed of a fluidically engageable output member. A magnetic sensor (232) generates a differential speed signal of the ring magnet (220) relative to the first speed. A controller (54) generates an actual speed signal indicative of the second speed in response to said differential speed signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.