Electric bicycles classification

Electric bicycles can be divided into all-electric and intelligent assisted two categories. Full electric bike: You can ride pedal may be without the aid of labor, but on pure electric drive, use the handle to control the speed, to achieve 0-20 km / h continuously variable transmission. Intelligent assisted electric bike: a conventional bicycle with a similar mode of operation, can human riding, you can also power assistance, no electric function. In its human-based, electricity, supplemented by the size of human riding force, control the size of the current supply, to achieve a combination of human and electric power, riding feel relaxed. adult electric tricycles when it reaches design speed, stop the supply of electricity.
Electric bicycle by a vehicle body, an electric drive unit (motor), rechargeable battery, charger and control system has five major components. Different types of car, its battery placement location, controllers and other different forms.
Friction transmission type: loaded directly from the wheel by the motor shaft in car tires on the drive by friction. Its advantages are simple structure, low cost, but tire wear and easy to slip during the rainy season. Driven axis: the axis of the frame is specially designed motor mounted to drive axis via a reduction mechanism, again driven by the rear wheel through the chain axis. The advantage is reasonable motor center of gravity, and can take advantage of the bicycle shift reduction system, but the mechanical loss is large.
Batteries for electric bicycle 3 wheel are mainly three types, namely small sealed lead-acid battery maintenance, nickel cadmium batteries and nickel-metal hydride batteries. Low small sealed lead-acid batteries cost, large capacity, has been widely used domestic enterprises. Chargers design with constant current, constant voltage, floating three-stage automatic conversion mode, the battery protective, effectively extending the battery life.