identify_planetary_ratio

identify_planetary_ratio(planetary_speeds_in, engine_speeds_out, final_drive_speeds_in)[source]

Calculates final drive speed [RPM].

Parameters:
  • planetary_speeds_in (numpy.array) – Planetary speed vector [RPM].
  • engine_speeds_out (numpy.array) – Engine speed vector [RPM].
  • final_drive_speeds_in (float) – Final drive speed in [RPM].
Returns:

Fundamental planetary speed ratio [-].

Return type:

numpy.array