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Mobiles F9





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2010 E-Bike
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  Braking Rekuperation



'If you brake, you lose' is often the motto of young people. As wrong as the motto is in car-racing, it could almost be applied to energy saving, if certain dangerous situations would not exist. It's not without reason that the high fuel consumption of some drivers can be recognised by the quick wear-and-tear of their brake linings/pads.

The extremely important charging process is explained here. Although, almost as important is the behaviour of the brakes themselves. If one takes a look at the (very smally shown) main brake cylinder, one can see that only when braking strongly, is pressure really asserted on the wheel-cylinders. How, on the other hand, is this prevented when the braking action is gentle, and carried out more carefully?

In the simplest case, there is a certain amount of play between the brake pedal and the piston rod. Thereby, a contact is triggered which causes the battery to be be charged more strongly. A small spring implies the counterpressure that one would normally feel when braking lightly. Some companies, such as Honda, e.g., are making more effort to have this counterpressure felt. A complex hydraulic system provides the feeling, in this case, that a real braking action is taking place.

There are of course, also systems, where the brake pedal is seperated from the production of pressure to the wheel cylinders anyway. This is generated by the (reinforced) electric pump, and only simulates the counterpressure from the brake-pedal. These systems simulate a counterpressure, thus providing the driver with an authentic braking feeling. Following this, one needs 'simply' to change the programming and the generator, together with the engine brake, would take over the work of the brake discs. 02/10


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