Pedal assist sensor
US8965610B2 · kind B2 · utility
9Cited by
17References
19Claims
0Family size
Inventor
Key dates
| Filing date | May 19, 2012 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | May 19, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/102
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and method for controlling an electric motor providing assistance to a bicycle rider based on measuring the mechanical power generated by the rider. The power generated by the rider is measured by measuring tension in a bicycle chain (or belt) and RPM. A chain (or belt) roller is carried at the free end of a cantilevered beam and the chain (or belt) rides over the roller. The resulting deflection of the cantilevered beam provides a measurement of chain tension. A control signal for the electric motor is generated based on a smoother version of the power generated by the rider.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.