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US 11,999,442 B2Granted
Bicycle control system
AssigneeSram, LLC
InventorsSage Hahn, Brian Jordan, Kevin Wesling
Life of this patent
Estimating the term…
Abstract
A bicycle with an electric pedal assist motor capable of driving a chainring independent of cranks includes wheel speed sensors and crank cadence sensors. The wheel speed sensors and the crank cadence sensors measure wheel speed and crank cadence, respectively, and provide the measured wheel speed and crank cadence to controller of the bicycle. The controller activates motor overdrive based on the measured wheel speed and/or the measured crank cadence.
Claims10
A method for controlling electronic shifting of a bicycle, the method comprising:
- identifying, by a processor, an average power over a period of time;
- comparing, by the processor, the average power to a threshold power level;
- enabling, by the processor, automatic shifting of the bicycle based on the comparison and the average power exceeding the threshold power level;
- and
- initiating, by the processor, electronic shifting of the bicycle, the initiating of the electronic shifting of the bicycle comprising actuating an assist motor of the bicycle for electronic shifting of the bicycle.
2 more elements
Dependencies are inferred from the claim text.