Torque sensor assembly for a power-assisted bicycle
US8485050B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2011 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Mar 6, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L3/1421
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A torque sensor assembly for a power-assisted bicycle has a torque sensor, a one-way bearing, a chainwheel, two cranks and two pedals. The torque sensor has an envelope tube, a middle tube, a transmission axle, a resilient element connected to the middle tube and the transmission axle, a first disc and a second disc respectively attached to the transmission axle and the middle tube, and a detection unit detecting displacement angles of the second disc and the first disc to calculate torques applied to the transmission axle and to drive the power-assisted bicycle according to the torque. The torque sensor assembly has a simple structure, fast, sensitive and accurate torque sensing ability, and can easily be assembled to all kinds of power-assisted bicycles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.