ELECTRIC CYCLE
An electric bicycle (e-bike, e-bike, etc.) is an electric bicycle with a built-in electric motor for driving assistance. There are many types of e-bikes sold around the world, but they generally fall into two broad categories he. Bikes that assist the rider's pedaling effort (such as a pedelec) and bikes that add a throttle to incorporate moped-style features. Both retain the rider's ability to pedal, so they are not electric bikes. E-bikes use rechargeable batteries and are typically electrified to 25-32 km/h (16-20 mph). High-performance strains often exceed 45 km/h (28 mph). In some markets, such as Germany in 2013, they have grown in popularity and are taking market share away from traditional bicycles[2]. Meanwhile, in other markets such as China in 2010, they are replacing fossil fuel mopeds and small motorcycles[3]. [4]
Depending on local laws, many electric bicycles (such as e-bikes) are legally classified as bicycles rather than mopeds or motorcycles. This frees them from the stricter laws governing the registration and operation of more powerful two-wheeled vehicles, often classified as electric motorcycles. Electric bicycles are also separately defined and dealt with under their own electric bicycle law.
Under UK law the vehicle is called an EAPC or electrically assisted pedal cycle and in EU law it is called an EPAC or electrically power assisted cycle.
Electric bicycle is an electric motor-driven variation of the electric bicycle that has been in use since the late 19th century. Some bike-sharing schemes use them.
Background History:
In the 1890s, electric bicycles were described in various US patents. For example, U.S. Pat. No. 552,271 issued on December 31, 1895 to Ogden Bolton Jr. for a battery-powered bicycle with a "six-pole brush and commutator direct current (DC) hub motor mounted on the rear wheel." was granted.
Two years later, in 1897, his Hosea W. Libbey of Boston invented an electric bicycle powered by "double electric motors" (US Patent 596,272). The motor is designed inside the hub of the crankset axle. This model was reinvented and imitated by him in the late 1990s by Giant Lafree E-Bikes.
Bicycle with post-market electric hub motor conversion kit and battery pack on rear rack Designed and patented by Mathew J. Steffens. Also, John Schnepf's 1899 US Patent 627,066 presented a rear friction "roller wheel" style electric bicycle. Schnepf's invention was later reviewed and in 1969 he issued G.A. Wood Jr. U.S. Patent 3,431,994. Wood's equipment he used a 4 hp engine. Connected by a series of gears.
The torque sensor and power controller were developed in the late 1990s. For example, in 1997 Yukki Takada of Japan applied for a patent for such a device. In 1992, Vector Services Limited offered and sold an electric bicycle called the Zike. The bike included a NiCd battery built into the frame member and an 850g permanent magnet motor. Despite Zike, in 1992 there were very few electric bikes on the market.
Japanese auto giant Yamaha built his one of the first prototype electric bicycles in 1989 and invented the pedal assist system in 1993.
production increased by an estimated 35% from 1993 to 2004. In contrast, according to Gartner, regular bicycle production has declined from its peak of 107 million units in 1995.
American automotive icon Lee Iacocca founded his EV Global Motors, a company that manufactures an electric bicycle model called the E-Bike SX, in 1997.
While some inexpensive e-bikes used bulky lead-acid batteries, newer models commonly use NiMH, NiCd, and/or lithium-ion batteries, resulting in lighter, higher-density batteries. was offering Performance varies. However, the latter battery type generally provides better range and speed.
BLDC Bicycle Hub Motor
Until 2001, the terms e-bike, power bike, "pedelec", pedal assist bike and power assist bike were commonly used to refer to e-bikes . The term 'electric bike' or 'electric bike' refers to the more powerful models, which reach a top speed of 80 km/h (50 mph).
In parallel hybrid motorcycles, such as the aforementioned 1897 invention by Hosea W. Libby, the human and motor inputs are mechanically coupled at either the bottom bracket, the rear wheel, or the front wheel. Motor inputs are coupled through differential gears. In the (electronic) series of hybrid bikes, human power is converted to electricity and fed directly to the motor, with additional power mostly coming from the battery.
By 2007, e-bikes are expected to account for 10-20% of the two-wheeled vehicles on the roads of many major Chinese cities[14]. A typical device takes him 8 hours to charge the battery and at a speed of about 20 km/h he offers a range of 25-30 miles (40-48 km).
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