电机的故障一般分为有机械故障与电气故障两大类，下边小编给大家盘点一下常见故障的检测与排除方法。

1、整车行驶里程缩短、电机乏力

2、无刷电机缺相

3、电机发热

4、电机的空载电流大

5、电机在运行时内部有机械碰撞或机械噪音

电动汽车电机有哪三类？

1、交流三相感应电动机是应用得最广泛的电动机。其定子和转子采用硅钢片叠压而定子之间没有相互接触的滑环、换向器等部件。结构简单，运行可靠，经久耐用。

2、开关磁阻电动机是一种新型电动机，该系统具有很多明显的特点：它的结构比其它任何一种电动机都要简单，在电动机的转子上没有滑环、绕组和永磁体等，只是在定子上有简单的集中绕组，绕组的端部较短，没有相间跨接线，维护修理容易。

3、永磁无刷直流电动机是一种高性能的电动机。它的最大特点就是具有直流电动机的外特性而没有刷组成的机械接触结构。

4、有刷直流电动机的主要优点是控制简单、技术成熟。具有交流电机不可比拟的优良控制特性。

Repair of motor failure

The faults of the motor are generally divided into two categories: mechanical faults and electrical faults. The following editor will give you an inventory of the detection and elimination methods of common faults.

1. The mileage of the vehicle is shortened and the motor is weak

2. Phase loss of brushless motor

3. Motor heating

4. The no-load current of the motor is large

5. There is mechanical collision or mechanical noise inside the motor during operation


What are the three types of electric vehicle motors?

1. AC three-phase induction motor is the most widely used motor. The stator and rotor are laminated with silicon steel sheets, and there are no slip rings, commutators and other components that are in contact with each other between the stators. Simple structure, reliable operation and durable.

2. The switched reluctance motor is a new type of motor. The system has many obvious features: its structure is simpler than any other motor, and there are no slip rings, windings and permanent magnets on the rotor of the motor. There are simple concentrated windings on the stator, the ends of the windings are short, and there is no interphase jumper, which is easy to maintain and repair.

3. Permanent magnet brushless DC motor is a high-performance motor. Its biggest feature is that it has the external characteristics of a DC motor without a mechanical contact structure composed of brushes.

4. The main advantages of brushed DC motors are simple control and mature technology. It has excellent control characteristics unmatched by AC motors.