dsp

dsp = Engine fuel consumption sub model

Calculates fuel consumptions.

Engine fuel consumption sub model’s data

active_cylinder_ratios	Possible active cylinder ratios [-].
active_cylinders
active_exhausted_gas_recirculations
active_lean_burns
active_variable_valves
after_treatment_temperature_threshold	Engine coolant temperature threshold when the after treatment system is warm [°C].
brake_mean_effective_pressures	Engine brake mean effective pressure vector [bar].
calibration_status
co2_emissions	CO2 instantaneous emissions vector [CO2g/s].
co2_emissions_model	CO2 emissions model (co2_emissions = models(params)).
co2_normalization_references	CO2 normalization references (e.g., engine loads) [-].
co2_params	CO2 emission model parameters (a2, b2, a, b, c, l, l2, t, trg).
co2_params_calibrated	CO2 emission model parameters (a2, b2, a, b, c, l, l2, t, trg).
co2_params_identified	Identified initial guess of co2 emission model params.
co2_params_initial_guess	Initial guess of co2 emission model params.
co2_rescaling_scores
cumulative_co2_emissions	Cumulative CO2 of cycle phases [CO2g].
cylinder_deactivation_valid_phases	Valid activation phases for cylinder deactivation.
engine_capacity	Engine capacity [cm3].
engine_coolant_temperatures	Engine coolant temperature vector [°C].
engine_fuel_lower_heating_value	Fuel lower heating value [kJ/kg].
engine_has_cylinder_deactivation	Does the engine have cylinder deactivation technology?
engine_has_variable_valve_actuation	Does the engine feature variable valve actuation? [-].
engine_idle_fuel_consumption	Fuel consumption at hot idle engine speed [g/s].
engine_inertia_powers_losses	Engine power losses due to inertia [kW].
engine_max_speed	Maximum allowed engine speed [RPM].
engine_n_cylinders	Number of engine cylinders [-].
engine_powers_out	Engine power vector [kW].
engine_speeds_out	Engine speed vector [RPM].
engine_stroke	Engine stroke [mm].
engine_thermostat_temperature	Engine thermostat temperature [°C].
engine_thermostat_temperature_window	Thermostat engine temperature limits [°C].
engine_type	Engine type (positive turbo, positive natural aspiration, compression).
extended_cumulative_co2_emissions	Extended cumulative CO2 of cycle phases [CO2g].
extended_integration_times	Extended cycle phases integration times [s].
extended_phases_co2_emissions	Extended CO2 emission of cycle phases [CO2g/km].
extended_phases_distances	Extended cycle phases distances [km].
extended_phases_integration_times	Extended cycle phases integration times [s].
fmep_model	Engine FMEP model.
fuel_carbon_content	Fuel carbon content [CO2g/g].
fuel_consumptions	The instantaneous fuel consumption vector [g/s].
fuel_map	Fuel consumption map [RPM, kW, g/s].
fuel_type	Fuel type (diesel, gasoline, LPG, NG, ethanol, methanol, biodiesel, propane).
full_bmep_curve	Vehicle full bmep curve.
full_load_powers	T1 map power vector [kW].
full_load_speeds	T1 map speed vector [RPM].
has_exhausted_gas_recirculation	Does the engine have exhaust gas recirculation technology?
has_lean_burn	Does the engine have lean burn technology?
has_selective_catalytic_reduction	Does the engine have selective catalytic reduction technology?
identified_co2_emissions	CO2 instantaneous emissions vector [CO2g/s].
idle_engine_speed	Engine speed idle median and std [RPM].
idle_fuel_consumption_initial_guess	Initial guess of fuel consumption at hot idle engine speed [g/s].
idle_fuel_consumption_model	Idle fuel consumption model.
initial_engine_temperature	Initial engine temperature [°C].
initial_friction_params
is_cycle_hot	Is an hot cycle?
mean_piston_speeds	Mean piston speed vector [m/s].
min_engine_on_speed	Minimum engine speed to consider the engine to be on [RPM].
on_engine	If the engine is on [-].
phases_co2_emissions	CO2 emission of cycle phases [CO2g/km].
phases_distances	Cycle phases distances [km].
phases_integration_times	Cycle phases integration times [s].
stop_velocity	Maximum velocity to consider the vehicle stopped [km/h].
tau_function	Tau-function of the extended Willans curve.
times	Time vector [s].
velocities	Velocity vector [km/h].

Engine fuel consumption sub model’s functions

bypass	Returns the same arguments.
calculate_after_treatment_temperature_threshold	Calculates the engine coolant temperature when the after treatment system is warm [°C].
calculate_brake_mean_effective_pressures	Calculates engine brake mean effective pressure [bar].
calculate_co2_emissions	Calculates instantaneous CO2 emission vector [CO2g/s].
calculate_cumulative_co2_v1	Calculates cumulative CO2 of cycle phases [CO2g].
calculate_cylinder_deactivation_valid_phases	Calculates valid activation phases for cylinder deactivation.
calculate_engine_idle_fuel_consumption	Calculates fuel consumption at hot idle engine speed [g/s].
calculate_extended_cumulative_co2_emissions	Calculates the extended cumulative CO2 of cycle phases [CO2g].
calculate_extended_integration_times	Calculates the extended integration times [-].
calculate_extended_phases_co2_emissions	Calculates the extended CO2 emission of cycle phases [CO2g/km].
calculate_extended_phases_distances	Calculates extended cycle phases distances [km].
calculate_fuel_consumptions	Calculates the instantaneous fuel consumption vector [g/s].
calibrate_co2_params	Calibrates the CO2 emission model parameters (a2, b2, a, b, c, l, l2, t, trg ).
default_engine_has_exhausted_gas_recirculation	Returns the default engine has exhaust gas recirculation value [-].
define_co2_emissions_model	Returns CO2 emissions model (see calculate_co2_emissions()).
define_co2_params_calibrated	Defines the calibrated co2_params if all co2_params are given.
define_fmep_model	Defines the vehicle FMEP model.
define_fuel_map	Define fuel consumption map [RPM, kW, g/s].
define_idle_fuel_consumption_model	Defines the idle fuel consumption model.
define_initial_co2_emission_model_params_guess	Selects initial guess and bounds of co2 emission model params.
define_tau_function	Defines tau-function of the extended Willans curve.
fake_identification_co2_emissions	Identifies instantaneous CO2 emission vector [CO2g/s].
identify_co2_emissions	Identifies instantaneous CO2 emission vector [CO2g/s].
predict_co2_emissions	Predicts CO2 instantaneous emissions vector [CO2g/s].