When it comes to the use of hub motors, it is still necessary to start from the hub motor application and its working principle. The hub motor is simply a motor that directly combines the hub and the drive unit. In fact, it is the motor, transmission and system. The moving devices are integrated into the hub, commonly known as the hub motor, and according to the application of the hub motor in the car, it is mainly divided into two types. Generally, the hub motor used in the electric vehicle is not a servo motor but a permanent magnet DC motor.
The so-called permanent magnet motor means that the motor coil is excited by a permanent magnet and does not use coil excitation. This saves the electric energy consumed during the operation of the excitation coil and improves the electromechanical conversion efficiency of the motor. This can reduce the running current and extend the mileage of the electric vehicle using the limited energy of the vehicle. According to the mechanical structure of the motor assembly, it is generally divided into two categories: "toothed" (high motor speed, need to be geared down) and "no tooth" (motor torque output does not undergo any deceleration).
The use of the hub motor makes the structure simpler on the structure of the vehicle. In addition to the simpler structure, the vehicle driven by the hub motor can obtain better space utilization, and the layout is more flexible and does not require complicated Mechanical transmission system, while the transmission efficiency is also much higher.
Achieving the true direct drive, the vehicle can better achieve the best energy utilization rate of the vehicle, and can also exert the best effect of the vehicle's torque and torque, which is the use of limited energy in the vehicle. In the case of electric vehicles, the running current can be reduced and the mileage can be extended.