Thursday, September 23

This electric bike motor eliminates the chain | Digital Trends Spanish

The German company Schaeffler has just launched its innovative Free Drive system for pedal-assisted electric bicycles.

Thanks to this system, it would not be necessary to use a chain or strap between the pedals and the wheel hub (also known as the hub).

The system consists of two electric machines, a generator and a motor, connected by a cable, which is responsible for sending the energy created by the cyclist while pedaling.

Basically, what this electrical machine does is transform mechanical energy into electrical energy, this reaches a second device installed in the rear wheel, where this energy is now converted into mechanical energy, which is used to drive the bicycle.

In this way, the innovative system makes it possible to eliminate the crown of the chainring on the pedals, the chain and the sprockets from the rear wheel axle.

An interesting aspect is that the generator can vary the resistance offered by the pedals to turning, according to the effort required.

Thus, if the cyclist pedals with enough power to generate excess energy, the system takes care of sending it to the battery so that it accumulates and can be used later, when the power is not enough or the person pedaling is not. have so much strength in your legs.

The Free Drive system is sold to bicycle manufacturers as an optimized component set consisting of a 250W hub motor, pedal generator, battery and interface unit.

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