dsp

dsp = Gear box thermal sub model

Calculates temperature, efficiency, torque loss of gear box.

Gear box thermal sub model’s data

delta_time	Time step [s].
equivalent_gear_box_heat_capacity	Equivalent gear box capacity (from cold start model) [W/°C].
gear	Gear [-].
gear_box_efficiency	Gear box efficiency [-].
gear_box_efficiency_parameters_cold_hot	Parameters of gear box efficiency model for cold/hot phases:
gear_box_heat	Gear box heat [W].
gear_box_power_out	Power at wheels [kW].
gear_box_ratios	Gear box ratios [-].
gear_box_speed_in	Engine speed [RPM].
gear_box_speed_out	Wheel speed [RPM].
gear_box_temperature	Gear box temperature [°C].
gear_box_temperature_references	Cold and hot reference temperatures [°C].
gear_box_torque	Torque gear_box [N*m].
gear_box_torque_in	Torque required [N*m].
gear_box_torque_in<0>	Torque required [N*m].
min_engine_on_speed	Minimum engine speed to consider the engine to be on [RPM].

Gear box thermal sub model’s functions

calculate_gear_box_efficiency	Calculates the gear box efficiency [N*m].
calculate_gear_box_heat	Calculates the gear box temperature heat [W].
calculate_gear_box_torque	Calculates torque entering the gear box [N*m].
calculate_gear_box_torque_in	Calculates torque required according to the temperature profile [N*m].
calculate_next_gear_box_temperature	Calculates the gear box temperature not finalized [°C].
correct_gear_box_torque_in	Corrects the torque when the gear box ratio is equal to 1.