define_normalized_VDI253_model

define_normalized_VDI253_model(m1000_curve_ratios, m1000_curve_norm_torques, idle_engine_speed, engine_max_speed, k_factor_curve)[source]

Defines normalized VDI253 model function.

Parameters:
  • m1000_curve_ratios (numpy.array) – Speed ratios of m1000 curve [-].
  • m1000_curve_norm_torques (numpy.array) – Normalized torques of m1000 curve [-].
  • idle_engine_speed ((float, float)) – Idle engine speed and its standard deviation [RPM].
  • engine_max_speed (float) – Maximum allowed engine speed [RPM].
  • k_factor_curve (callable) – k factor curve.
Returns:

Normalized VDI253 model function.
Return type:

scipy.interpolate.LinearNDInterpolator