![]() Torque sensors and power controls were developed in the late 1990s. Wood's device used 4 fractional horsepower motors connected through a series of gears. Schnepf's invention was later re-examined and expanded in 1969 by G.A. Patent 627,066 by John Schnepf depicted a rear-wheel friction “roller-wheel” style drive electric bicycle. This model was later re-invented and imitated in the late 1990s by Giant Lafree e-bikes.īy 1898 a rear-wheel drive electric bicycle, which used a driving belt along the outside edge of the wheel, was patented by Mathew J. The motor was designed within the hub of the crankset axle. Patent 596,272) that was propelled by a "double electric motor". Libbey of Boston invented an electric bicycle ( U.S. There were no gears and the motor could draw up to 100 amperes (A) from a 10-volt battery. Patent 552,271 for a battery-powered bicycle with "6-pole brush-and-commutator direct current (DC) hub motor mounted in the rear wheel". For example, on 31 December 1895, Ogden Bolton Jr. In the 1890s, electric bicycles were documented within various U.S. Į-bikes are the electric motor-powered versions of motorized bicycles, which have been in use since the late 19th century. In UK legislation the vehicles are called EAPC or Electrically Assisted Pedal Cycle, in EU legislation EPAC or Electrically Power Assisted Cycle. E-bikes can also be defined separately and treated under distinct electric bicycle laws. This exempts them from the more stringent laws regarding the certification and operation of more powerful two-wheelers which are often classed as electric motorcycles. ĭepending on local laws, many e-bikes (e.g., pedelecs) are legally classified as bicycles rather than mopeds or motorcycles. In some markets, such as Germany as of 2013, they are gaining in popularity and taking some market share away from conventional bicycles, while in others, such as China as of 2010, they are replacing fossil fuel-powered mopeds and small motorcycles. High-powered varieties can often travel more than 45 km/h (28 mph). Both retain the ability to be pedaled by the rider and are therefore not electric motorcycles.Į-bikes use rechargeable batteries and typically are motor-powered up to 25 to 32 km/h (16 to 20 mph). pedelecs) and bikes that add a throttle, integrating moped-style functionality. Many kinds of e-bikes are available worldwide, but they generally fall into two broad categories: bikes that assist the rider's pedal-power (i.e. An electric bicycle ( e-bike, eBike, etc.) is a motorized bicycle with an integrated electric motor used to assist propulsion.
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