What kind of motor is used for new energy vehicles?

At present, there are two main types of motors used in new energy vehicles on the market, namely permanent magnet synchronous motors and AC asynchronous motors. New energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid electric vehicles, fuel cell electric vehicles, hydrogen engine vehicles and other new energy vehicles.

As the power source of new energy vehicles, the quality of motors determines how far new energy vehicles can go. In addition, the development of electric vehicles in recent years is like the trend of "a single spark can start a prairie fire", so the importance of motors is self-evident. At present, there are mainly two kinds of motors used in new energy vehicles on the market, permanent magnet synchronous motors and AC asynchronous motors.

The working principle of permanent magnet synchronous motor is electromagnetism. After electrifying, the coil in the motor will generate a magnetic field, and then the coil will start to rotate because the magnets inside repel each other. The greater the current, the faster the rotation speed of the coil.

The advantages of using permanent magnet synchronous motor are small size and light weight, which can save a lot of space; In addition, the use efficiency of permanent magnet synchronous motor is excellent, and its high power density can make its motor work efficiency reach 97%, which is to ensure power and acceleration for the car. However, the disadvantage of permanent magnet synchronous motor is that it is expensive and needs rare earth as material.

As we all know, China has the largest rare earth reserves in the world, and the total output of magnetic materials in China has reached 80% in the world. Therefore, domestic electric vehicles basically use permanent magnet synchronous motors, such as Beiqi New Energy, BYD and Xpeng motors.

(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)