Values¶
- class Values[source]¶
Methods
clear
copy
dump
from_dict
fromkeys
Create a new dictionary with keys from iterable and values set to value.
get
Return the value for key if key is in the dictionary, else default.
items
keys
load
pop
If the key is not found, return the default if given; otherwise, raise a KeyError.
popitem
Remove and return a (key, value) pair as a 2-tuple.
setdefault
Insert key with a value of default if key is not in the dictionary.
to_dict
update
If E is present and has a .keys() method, then does: for k in E: D[k] = E[k] If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v In either case, this is followed by: for k in F: D[k] = F[k]
values
- __init__(*args, **kwargs)¶
Attributes
Possible percentages of active cylinders [-].
Air temperature [°C].
Alternator efficiency [-].
Angle slope [rad].
Family correction factor for representative regional temperatures [-].
Atmospheric pressure [kPa].
Constant power loss due to engine auxiliaries [kW].
Constant torque loss factors due to engine auxiliaries [N/cc, N*m].
Belt efficiency [-].
Cargo mass [kg].
Time window used to apply gear change filters [s].
CO2 emission model params.
A different preconditioning cycle was used for WLTP and NEDC?
Time elapsed to turn on the engine with electric starter [s].
Drive battery technology type.
Enable the manual gearshift from WLTP regulation?
Enable the calculation of Willans coefficients for all phases?
Enable the calculation of Willans coefficients for the cycle?
Does the engine have cylinder deactivation technology?
Does the engine feature variable valve actuation? [-].
If the engine is equipped with any kind of charging.
Number of engine cylinders [-].
Final drive ratio [-].
Fuel mass [kg].
Apply the eco-mode gear shifting?
Cold and hot gear box reference temperatures [°C].
Does the vehicle have energy recuperation features?
Does the gear box have some additional technology to heat up faster?
Does the engine have lean burn technology?
Does the vehicle has periodically regenerating systems? [-].
Has the vehicle a roof box? [-].
Does the engine have selective catalytic reduction technology?
Does the vehicle have start/stop system?
Standard deviation of idle engine speed [RPM].
Initial temperature of the test cell of NEDC [°C].
Initial temperature of the test cell of WLTP [°C].
Is an hot cycle?
Is the vehicle plugin hybrid?
Is the vehicle serial hybrid?
K1 NEDC parameter (first or second gear) [-].
K2 NEDC parameter (first or second gear) [-].
K5 NEDC parameter (first or second gear) [-].
Default additive correction for vehicles with periodically regenerating systems [CO2g/km].
NEDC cycle time [s].
WLTP cycle time [s].
Threshold vehicle velocity for gear correction due to full load curve [km/h].
Minimum vehicle engine speed [RPM].
Minimum time of engine on after a start [s].
Minimum distance between points for the elevation interpolation [m].
Number of passengers including driver [-].
Average passenger mass [kg].
Maximum acceleration to be at constant velocity [m/s2].
Apply RCB correction?
Road state (i.e., dry, wet, rainfall, puddles, ice).
Service battery start window width [s].
Start-stop activation time threshold [s].
Starter efficiency [-].
Maximum velocity to consider the vehicle stopped [km/h].
A/T Time at cold hot transition phase [s].
Time frequency [1/s].
Tyre class (C1, C2, and C3).
Empirical value in case of CVT [-].
Tyre state (i.e., new or worm).
If to use decision tree classifiers to predict gears.
Wheel drive (i.e., front, rear, front+rear).
WLTP base model params.
- minimum_elevation_distance = 30¶
Minimum distance between points for the elevation interpolation [m].
- is_plugin = False¶
Is the vehicle plugin hybrid?
- is_serial = False¶
Is the vehicle serial hybrid?
- rcb_correction = True¶
Apply RCB correction?
- atct_family_correction_factor = 1.0¶
Family correction factor for representative regional temperatures [-].
- drive_battery_technology = 'unknown'¶
Drive battery technology type.
- belt_efficiency = 0.8¶
Belt efficiency [-].
- starter_efficiency = 0.7¶
Starter efficiency [-].
- tyre_state = 'new'¶
Tyre state (i.e., new or worm).
- road_state = 'dry'¶
Road state (i.e., dry, wet, rainfall, puddles, ice).
- engine_n_cylinders = 4¶
Number of engine cylinders [-].
- ki_additive = 0¶
Default additive correction for vehicles with periodically regenerating systems [CO2g/km].
- n_passengers = 1¶
Number of passengers including driver [-].
- passenger_mass = 75¶
Average passenger mass [kg].
- cargo_mass = 0¶
Cargo mass [kg].
- fuel_mass = 25¶
Fuel mass [kg].
- has_selective_catalytic_reduction = False¶
Does the engine have selective catalytic reduction technology?
- has_lean_burn = False¶
Does the engine have lean burn technology?
- has_gear_box_thermal_management = False¶
Does the gear box have some additional technology to heat up faster?
- has_periodically_regenerating_systems = False¶
Does the vehicle has periodically regenerating systems? [-].
- active_cylinder_ratios = (1.0,)¶
Possible percentages of active cylinders [-].
- engine_has_variable_valve_actuation = False¶
Does the engine feature variable valve actuation? [-].
- max_time_NEDC = 1180.0¶
NEDC cycle time [s].
- max_time_WLTP = 1800.0¶
WLTP cycle time [s].
- stop_velocity = 1.00000011920929¶
Maximum velocity to consider the vehicle stopped [km/h].
- plateau_acceleration = 0.10000011920929¶
Maximum acceleration to be at constant velocity [m/s2].
- has_start_stop = True¶
Does the vehicle have start/stop system?
- engine_has_cylinder_deactivation = False¶
Does the engine have cylinder deactivation technology?
- min_engine_on_speed = 10.0¶
Minimum vehicle engine speed [RPM].
- min_time_engine_on_after_start = 4.0¶
Minimum time of engine on after a start [s].
- change_gear_window_width = 4.0¶
Time window used to apply gear change filters [s].
- service_battery_start_window_width = 4.0¶
Service battery start window width [s].
- max_velocity_full_load_correction = 100.0¶
Threshold vehicle velocity for gear correction due to full load curve [km/h].
- air_temperature = 20¶
Air temperature [°C].
- atmospheric_pressure = 101.325¶
Atmospheric pressure [kPa].
- has_roof_box = False¶
Has the vehicle a roof box? [-].
- tyre_class = 'C1'¶
Tyre class (C1, C2, and C3).
- angle_slope = 0.0¶
Angle slope [rad].
- correct_f0 = False¶
A different preconditioning cycle was used for WLTP and NEDC?
- final_drive_ratio = 1.0¶
Final drive ratio [-].
- wheel_drive = 'front'¶
Wheel drive (i.e., front, rear, front+rear).
- fuel_saving_at_strategy = True¶
Apply the eco-mode gear shifting?
- gear_box_temperature_references = (40.0, 80.0)¶
Cold and hot gear box reference temperatures [°C].
- auxiliaries_torque_loss_factors = (0.175, 0.2021)¶
Constant torque loss factors due to engine auxiliaries [N/cc, N*m].
- auxiliaries_power_loss = 0.0213¶
Constant power loss due to engine auxiliaries [kW].
- engine_is_turbo = True¶
If the engine is equipped with any kind of charging.
- start_stop_activation_time = 30¶
Start-stop activation time threshold [s].
- idle_engine_speed_std = 100.0¶
Standard deviation of idle engine speed [RPM].
- is_cycle_hot = False¶
Is an hot cycle?
- co2_params = {}¶
CO2 emission model params.
- enable_phases_willans = False¶
Enable the calculation of Willans coefficients for all phases?
- enable_willans = False¶
Enable the calculation of Willans coefficients for the cycle?
- enable_manual_wltp_gearshift = True¶
Enable the manual gearshift from WLTP regulation?
- alternator_efficiency = 0.67¶
Alternator efficiency [-].
- delta_time_engine_starter = 0.5¶
Time elapsed to turn on the engine with electric starter [s].
- use_dt_gear_shifting = False¶
If to use decision tree classifiers to predict gears.
- has_energy_recuperation = True¶
Does the vehicle have energy recuperation features?
- time_cold_hot_transition = 300.0¶
A/T Time at cold hot transition phase [s].
- time_sample_frequency = 1.0¶
Time frequency [1/s].
- initial_temperature_NEDC = 25.0¶
Initial temperature of the test cell of NEDC [°C].
- initial_temperature_WLTP = 23.0¶
Initial temperature of the test cell of WLTP [°C].
- k1 = 1¶
K1 NEDC parameter (first or second gear) [-].
- k2 = 2¶
K2 NEDC parameter (first or second gear) [-].
- k5 = 2¶
K5 NEDC parameter (first or second gear) [-].
- wltp_base_model = {}¶
WLTP base model params.
- tyre_dynamic_rolling_coefficient = 0.9713375796178343¶
Empirical value in case of CVT [-].