Values

class Values[source]

Methods

__init__

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 key is not found, d is returned if given, otherwise KeyError is raised

popitem

2-tuple; but raise KeyError if D is empty.

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

active_cylinder_ratios

Possible percentages of active cylinders [-].

air_temperature

Air temperature [°C].

alternator_efficiency

Alternator efficiency [-].

angle_slope

Angle slope [rad].

atct_family_correction_factor

Family correction factor for representative regional temperatures [-].

atmospheric_pressure

Atmospheric pressure [kPa].

auxiliaries_power_loss

Constant power loss due to engine auxiliaries [kW].

auxiliaries_torque_loss_factors

Constant torque loss factors due to engine auxiliaries [N/cc, N*m].

belt_efficiency

Belt efficiency [-].

cargo_mass

Cargo mass [kg].

change_gear_window_width

Time window used to apply gear change filters [s].

co2_params

CO2 emission model params.

correct_f0

A different preconditioning cycle was used for WLTP and NEDC?

delta_time_engine_starter

Time elapsed to turn on the engine with electric starter [s].

downscale_factor_threshold

Velocity downscale factor threshold [-].

drive_battery_technology

Drive battery technology type.

enable_phases_willans

Enable the calculation of Willans coefficients for all phases?

enable_willans

Enable the calculation of Willans coefficients for the cycle?

engine_has_cylinder_deactivation

Does the engine have cylinder deactivation technology?

engine_has_variable_valve_actuation

Does the engine feature variable valve actuation? [-].

engine_is_turbo

If the engine is equipped with any kind of charging.

engine_n_cylinders

Number of engine cylinders [-].

final_drive_ratio

Final drive ratio [-].

fuel_mass

Fuel mass [kg].

fuel_saving_at_strategy

Apply the eco-mode gear shifting?

gear_box_temperature_references

Cold and hot gear box reference temperatures [°C].

has_energy_recuperation

Does the vehicle have energy recuperation features?

has_gear_box_thermal_management

Does the gear box have some additional technology to heat up faster?

has_lean_burn

Does the engine have lean burn technology?

has_periodically_regenerating_systems

Does the vehicle has periodically regenerating systems? [-].

has_roof_box

Has the vehicle a roof box? [-].

has_selective_catalytic_reduction

Does the engine have selective catalytic reduction technology?

has_start_stop

Does the vehicle have start/stop system?

idle_engine_speed_std

Standard deviation of idle engine speed [RPM].

initial_temperature_NEDC

Initial temperature of the test cell of NEDC [°C].

initial_temperature_WLTP

Initial temperature of the test cell of WLTP [°C].

is_cycle_hot

Is an hot cycle?

is_plugin

Is the vehicle plugin hybrid?

is_serial

Is the vehicle serial hybrid?

k1

K1 NEDC parameter (first or second gear) [-].

k2

K2 NEDC parameter (first or second gear) [-].

k5

K5 NEDC parameter (first or second gear) [-].

ki_additive

Default additive correction for vehicles with periodically regenerating systems [CO2g/km].

max_time_NEDC

NEDC cycle time [s].

max_time_WLTP

WLTP cycle time [s].

max_velocity_full_load_correction

Threshold vehicle velocity for gear correction due to full load curve [km/h].

min_engine_on_speed

Minimum vehicle engine speed [RPM].

min_time_engine_on_after_start

Minimum time of engine on after a start [s].

minimum_elevation_distance

Minimum distance between points for the elevation interpolation [m].

n_passengers

Number of passengers including driver [-].

passenger_mass

Average passenger mass [kg].

plateau_acceleration

Maximum acceleration to be at constant velocity [m/s2].

rcb_correction

Apply RCB correction?

road_state

Road state (i.e., dry, wet, rainfall, puddles, ice).

service_battery_start_window_width

Service battery start window width [s].

start_stop_activation_time

Start-stop activation time threshold [s].

starter_efficiency

Starter efficiency [-].

stop_velocity

Maximum velocity to consider the vehicle stopped [km/h].

time_cold_hot_transition

A/T Time at cold hot transition phase [s].

time_sample_frequency

Time frequency [1/s].

tyre_class

Tyre class (C1, C2, and C3).

tyre_dynamic_rolling_coefficient

Empirical value in case of CVT [-].

tyre_state

Tyre state (i.e., new or worm).

use_dt_gear_shifting

If to use decision tree classifiers to predict gears.

wheel_drive

Wheel drive (i.e., front, rear, front+rear).

wltp_base_model

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?

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.

downscale_factor_threshold = 0.01

Velocity downscale factor threshold [-].

tyre_dynamic_rolling_coefficient = 0.9713375796178343

Empirical value in case of CVT [-].