Maybe you don't know what electromagnetic resistance is
But surely we all have this experience:
Turn the front wheel and the back wheel by hand
The first thing to stop is the back wheel
Because the rear wheel has a motor
It's the electromagnetic resistance inside the motor that makes the rear wheel stop first
Even if the power is off, as long as the motor is running
This electromagnetic resistance still exists
So we have to do everything we can to get rid of the electromagnetic drag
Removing electromagnetic resistance has three major benefits:
First, there's no electromagnetic drag
Electric cars can glide farther and run farther
Second, there is no electromagnetic resistance, and pedal riding is easier
Third, it is easier to push and reverse, which is especially useful for girls
The technique of removing electromagnetic resistance is complicated to do and simple to explain
It is mainly to change the internal structure of the motor and increase the "clutch module".
In the gliding state, the inner and outer rotors are separated
Can eliminate the electromagnetic damping of the motor when inertial motion
At the same time, the volume and weight of the motor are reduced through the double bin design
This reduces some of the friction
The technology is called zero-reluctance motors
When riding without pedals, the electromagnetic resistance of the motor is almost zero
It can glide for more than 30 meters without electricity
Under the same conditions, the mileage can be increased by 10-20%