EV Permanent Magnet Synchronous Motor Performance Calculator
This calculator estimates key performance parameters - torque, synchronous speed, output power, and efficiency - for Permanent Magnet Synchronous Motor (PMSM) used in electric vehicle drivetrains, helping engineers analyze and optimize powertrain performance.
Enter the Rated Voltage, Rated Current, Rated Speed, Efficiency and Torque Constant to calculate the performance of a Permanent Magnet Synchronous Motor.
Result
Angular Speed
RPM
Torque
Nm
Output Power
kW
Input Power
kW
Using standard motor ratings and operating conditions, it provides a quick and practical tool for evaluating motor behaviour across different operating points.
Example:
For a PMSM Motor with a torque constant of 0.1 Nm/A, a rated current of 120 A, a rated speed of 4000 rpm, a rated voltage of 300 V, and an efficiency of 92%,
Torque = 0.1 x 120 = 12 Nm
Angular Speed = (2π x 4000)/60 ≈419 rad/s
Output Power = 12 x 419 = 5028 W
Input Power = (5028 x 100)/92 = 5463 W
