The electric scooters are the order of the day, but perhaps much of its mechanics is unknown and so today we will learn as are the engines of this personal mobility vehicle increasingly popular in the streets.
The motor can be with and without brushes
The electric motor of the scooter is the essential part of this vehicle , since it is in charge of converting electrical energy into mechanical energy. The more power the motor has , the more mechanical power it will provide, which means more speed and easier climbing hills.
However, there is another variable of great importance in the motor of a scooter, which is the brushes. That is, there are two different types of motors: brushed and brushless.
The brush motors , brushless used connected to a manifold for changing the polarity in the rotor. Therefore, they are in charge of mechanically switching the current of the motor windings.
That is, this motor has built-in brushes which are responsible for generating the necessary energy for the motor to work.
On the other hand, in brushless or brushless motors , they do not have a collector or brushes to change the polarity in the rotor, so the commutation of the coils is carried out electronically through a motor controller.
Main differences of these engines
A brushed motor is cheaper, since not having an electronic control makes its price cheaper. But the brush system makes it provide less power, as well as higher maintenance and worse performance.
For example, the brushless motor offers greater and better performance than the one with built-in brushes, since with their friction there is a loss of heat and, as a consequence, the power is lower.
In addition, thanks to not having brushes, the brushless motor has a better relationship between speed and motor torque , which is lower in the case of the motor with brushes, since by increasing the speed they cause friction and, consequently, reduce the engine torque.
And it must be taken into account that the brushed motor may have a shorter useful life than brushless motors, since these elements end up wearing out and also entail greater maintenance.
That is, the brushed motor has mechanical limitations caused by the use of brushes, but it is not a worse motor for that. You just have to take into account the differences and choose the one that best suits each one.