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Electric Bicycles
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The History of the E-Bike
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E-bikes have been recognized with numerous U.S. Patents. One of
those patents was granted to Ogden Bolton Jr., on December 31,
1895, for a battery powered bike that had a “6-pole-brush-and-
commutator direct current (DC) hub motor mounted in the rear
wheel.” This bike had no gears and the motor could pull up to 100
amperes (A) from a 10-volt battery.
Another e-bike was invented two years later by a Hosea W. Libbey of
Boston. This e-bike was propelled by a “double-electric motor”. The
motor was created within the center of the crankset axel. This model
was re-created and replicated during the 1990s by Giant Lafree e-
bikes.
Classes of E-Bikes
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A “pedal-assisted” e-bike uses the motor to regulate the pedaling.
The pedal-assisted motor enhances the rider’s pedaling efforts.
These e-bikes are called pedelecs and use a sensor device to sense
the speed or force of the pedals, or both. There is also a brake
activation that senses if there is a need to disable the motor.
The “power-on-demand” e-bike has a motor that is operated by the
use of a throttle. This is usually mounted on the handlebars as with a
motorcycle or scooter.