7 differences between electric car motor and general motor

Electric vehicles are the development trend of the automotive industry. the core of the principle is to replace the engine with a motor to achieve electric drive. But have you ever thought about whether the motor on an electric car is the same as a normal motor?
7 differences between electric car motor and general motor:

1. The electric vehicle motor should have a large starting torque, good starting performance and good acceleration performance to meet the requirements of frequent starting and stopping, acceleration and deceleration or climbing of electric vehicles. Reflected in the motor test, it is required that the motor should have a short response time when the speed or torque is controlled. At the same time, when the external load changes stepwise, the motor itself should reflect quickly enough to adjust the output power and speed;
2. The constant power range of the motor motor should be designed to be wide to meet the torque output of the electric vehicle at high speed to ensure the highest speed that can be achieved by the car;

3. The electric vehicle motor should have a large range of speed regulation capability, have large torque at low speed, high power at high speed, and can adjust the driving speed and corresponding driving force of the electric vehicle at any time according to driving needs;

4, electric car motor should have good efficiency characteristics, in the wide range of speed / torque, to obtain the best efficiency, improve the continuous mileage after a charge, generally required in the typical driving cycle area, get 85% ~93% efficiency;
5. The outer dimensions of the electric vehicle motor are as small as possible, the quality is as light as possible, and the power density is optimized;

6. Electric motor motor should have good reliability, strong temperature and moisture resistance, long-term work in harsh environment, low noise during operation and convenient maintenance;
7. Combine with the motor controller to effectively recover the energy generated by the brake.