Efficiency, thermal, and sizing models for brushless DC motor powertrains used in drones and robots.

This are models I've developed over the past few years of graduate research at Texas A&M University. I'm slowly sharing them here so they see the light of day rather than sit unread in a journal paper.

I welcome your feedback!

• Efficiency models to predict losses for:
  • brushless DC (BLDC) motor
  • motor controller (also known as electronic speed controller or ESC)
  • Generic lithium-polymer ("Lipo") battery.

• Documentation for example files
• theory manual for the efficiency models (my open-source journal paper deriving the efficiency models)
• Thermal models + theory manual = predict convective heat transfer coefficient for outrunner BLDC motor.
• Sizing models + theory manual = predict optimal size and electrical constants for outrunner BLDC motor.

• evpy.py = all the models/code
• ex_mot_ctrl_eff.py = example file for using motor and controller efficiency function.
• ex_batt_mdl.py = example file for using the battery efficiency function.
• ex_intg_mdl.py = example file for an integrated motor+ctrl+battery model. Uses experimental flight data.