calculate_gear_box_mean_efficiency_guess

calculate_gear_box_mean_efficiency_guess(motive_powers, final_drive_mean_efficiency, gear_box_loss_model, times, gear_box_speeds_in, gear_box_speeds_out, min_engine_on_speed, gears=None)[source]

Calculate gear box mean efficiency guess [-].

Parameters:
  • motive_powers (numpy.array) – Motive power [kW].
  • final_drive_mean_efficiency (float) – Final drive mean efficiency [-].
  • gear_box_loss_model (GearBoxLosses) – Gear box loss model.
  • times (numpy.array) – Time vector [s].
  • gear_box_speeds_in (numpy.array) – Engine speed vector [RPM].
  • gear_box_speeds_out (numpy.array) – Wheel speed vector [RPM].
  • min_engine_on_speed (float) – Minimum engine speed to consider the engine to be on [RPM].
  • gears (numpy.array, optional) – Gear vector [-].
Returns:

Gear box mean efficiency guess [-].
Return type:

float