Hub motors, are they all brushless DC motors?

1. Not necessarily, most of them used to be brushed motors, but now most of them are brushless.
2. In-wheel motor technology is also called in-wheel motor technology. Its biggest feature is that it integrates the power device, transmission device and braking device into the wheel hub, which greatly simplifies the mechanical part of the electric vehicle.
3. The brushless DC motor is composed of a motor body and a driver, and is a typical mechatronic product. A brushless motor refers to a motor without brushes and commutators (or collector rings), also known as a commutator-free motor. As early as the 19th century, when the motor was born, the practical motor produced was a brushless form, that is, an AC squirrel-cage asynchronous motor, which was widely used. However, asynchronous motors have many insurmountable defects, so that the development of motor technology is slow. Transistors were born in the middle of the last century, so brushless DC motors that use transistor commutation circuits instead of brushes and commutators came into being. This new brushless motor, called an electronically commutated DC motor, overcomes the shortcomings of the first generation of brushless motors.