What is front drive geared electric bicycle motor？
Front drive geared electric bicycle motor is an important part that converts battery electric energy into mechanical energy and drives the rotation of electric car wheels. The motors used in electric bicycles can be divided into many types with different mechanical structures, speed ranges and energized forms.
The common ones are: brushed geared hub motor, brushed gearless hub motor, brushless gearless hub motor, brushless geared hub motor, side-hung motor, etc.
What is the role of front drive geared electric bicycle motor?
Simply put, the role of an front drive geared electric bicycle motor is to convert the chemical energy of the battery into mechanical energy so that the wheel can rotate. That is to say, the energy of the battery all depends on the motor conversion in order to play out, otherwise your electric bike relies on the battery alone, but can not run.
Front drive geared electric bicycle motor in the downhill or inertia can generate some electricity when moving, but it is impossible to charge the battery on the car, the self-generated electric car promoted by the business is not credible, according to the law of conservation of energy front drive geared electric bicycle motor in walking is not possible both as a motor and as a generator.
Most of the current market is "brushless motor with position sensor"
For the brushless motor without position sensor, the car must be pedaled up first, and then the motor has a certain rotation speed before the controller can identify the phase of the brushless motor, and then the controller can supply power to the motor.
Since the brushless motor without position sensor cannot realize zero speed start, it is less used in the electric vehicles produced after 2000.
Brushless motors currently used in the electric vehicle industry generally use brushless motors with position sensors.
The number of magnets in brushless motors for electric vehicles is relatively large, and the coils generally have 3 groups, each group of coils has a corresponding lug element (3 phase coils have 3 lug elements), so that the motor rotates more smoothly and more efficiently. When the magnets rotate, the Hall element senses the change of magnetic field direction and gives the corresponding control signal, according to which the brushless controller controls the on and off of the upper 3 and lower 3 power tubes.