How an Electric Brake Motor Works

Theory:

Electric motor brakes can basically make an electric motor turn backwards. The motor brakes supply the electric motor with an external force, instead of an electric force to make the shaft in the motor run. This external force is usually applied by the wheels of the car that generate electricity.

Working:

There are two separate coils of wire in a motor that are located constructively around a permanent magnet which is connected to the central shaft. When electricity passes through these wires, a magnetic field is generated that makes the motor work. The central magnet alternates and results in a continuous feeling of rotation on the magnet. As per the alignment of the central magnet, the magnetic field turns on and off consecutively, thus making the magnet turn.

Braking System:

Because there is no electrical force applied on the motor, some energy is needed to apply force to spin the central magnet against the push of the wire coils which can ultimately turn the shaft. This force is given by the substantial forces that are formed when the car is moving at a high speed. These substantial forces when applied protect the brake pads from wearing out and also charge the battery.

The only drawback of an electric motor braking is that its function declines at lesser speed as the central magnet senses a lesser amount of force when it's rotating slower. This is why the motor also needs friction brakes to apply brakes correctly.