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Method for improving electric motor efficiency of electric vehicles
- Aug 22, 2018 -

The higher the efficiency of the motor, the better the performance of the electric car. So what methods can we use to improve efficiency?

First, the motor speed. High-speed motors for electric vehicles are more efficient than low-speed motors because the serious loss is proportional to torque, not power. Low-speed motors have high torque, so there is a higher loss at the same power.

Second, the cooling method. The electric motor motor is cooled by liquid at low temperature operation, which reduces the coil resistance and improves the working efficiency, although it can only be increased by 1%.

3. If the operating state of an electric motor motor deviates far from the speed and torque point, its efficiency may be completely different from the data given in its specifications.