Electric car and electric vehicle regenerative braking system, we explain how it works and what are the benefits of this technological innovation.

Electric car and electric vehicle regenerative braking system
Alke' Electric Vehicles with regenerative braking system
We explain how it was possible this innovation


brake energy recovery electric engine alke'

There are different type of electric motors, Alkè electric vehicles use a special last generation AC motor, with a power of 8-11kW and peak of 14 kW (24kW for the XT 320E). This electric motor during normal operation receives electricity from batteries. During braking operation the same motor works as a dynamo and generates energy that, instead of being wasted in heat from brakes, is sent to the drive batteries. This makes possible for the electric vehicle to get lower average consumption and consequently higher autonomy. Different studies have been made by universities to understand which is the real benefit of this innovation and it is estimated that you can get a saving of about 30%. This value is reached especially in work situations of stop and go type, typical of maintenace works.


To explain better how the regenerative braking works we make a practical example:

Comparison between waste collection with electric vehicles with regenerative braking system and diesel/petrol vehicles

electric vehicles with regenerative braking system

If we use a petrol or diesel vehicle for waste collection we have a series of waste:
  • the vehicle consume and pollute even when it is stationary during the load of waste.
  • at each stop (about every twenty metres) the vehicle brakes and loses energy besides having a high brake wear.
  • the traditional vehicle at the start isn't in torque so the engine haven't a good energy efficiency.

If we use an electric vehicle with regenerative braking system:

  • the stationary electric vehicle doesn't consume and doesn't pollute.
  • during the braking recovers most of the energy so it recharges the batteries.
  • during the start, the ALKE' electric motor has maximum torque at zero rpm then it has also the maximum efficiency.

In such situations you can then reach a saving of about 30% with the regenerative braking system increasing in proportion the batteries autonomy.

Zero emissions vehicles ATX330E

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