Method and apparatus for a continuously variable-ratio transmission
US6949854B1 · kind B1 · utility
5Cited by
66References
18Claims
0Family size
Inventor
Key dates
| Filing date | Mar 15, 2002 |
| Grant date | Sep 27, 2005 |
| Priority date | — |
| Expiry date | Mar 15, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K49/102
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for providing a continuously variable transmission (CVT) is described. The CVT comprises permanent magnets to couple power, a coefficient of coupling controlled by an electronic servo control loop. Wherein torque multiplication is achieved by “duty-cycle” modulation of the magnetic coupling “pulses”, between the input shaft and output shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.