Models/Emissions/PHEMlight

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PHEM (Passenger Car and Heavy Duty Emission Model)

PHEM (Passenger Car and Heavy Duty Emission Model) is an instantaneous vehicle emission model developed by the TU Graz since 1999. PHEM is based on an extensive European set of vehicle measurements and covers passenger cars, light duty vehicles and heavy duty vehicles from city buses up to 40 ton semi-trailers.

Within COLOMBO, a simplified version of PHEM, embedded into SUMO, was developed. The PHEMlight model is the result of this work. An in-depth description can be found in COLOMBO's deliverable D4.2. The model received a major update to version 2.0.0.0 in the beginning of 2016 which also used new names for all vehicle classes, most notably all classes now have an english prefix distinguishing passenger cars (PC_), light (LCV_) and heavy duty vehicles (HDV_). Since the class ames are disjoint both models can be used alternatively or even in parallel although the old classes are considered deprecated.

PHEMlight uses data files that include the parameters of the modelled emission classes. At the time being, data sets for two emission classes are included in SUMO: PKW_D_EU4 and PKW_G_EU4 (PC_D_EU4 and PC_G_EU4 for the new model), resembling passenger vehicles, Euro Norm 4, powered by Diesel (PKW_D_EU4) and gasoline (PKW_G_EU4).

Caution:
Only two emission classes are included in the public version. Any further vehicle classes must be licensed from the TU Graz.

To use PHEMlight, you can set an additional search path to these input files using the configuration option --phemlight-path <FILE> where <FILE> is the path. Alternatively, you may set the environment variable PHEMLIGHT_PATH. By default SUMO is only looking into <SUMO_HOME>/data/emissions/PHEMlight

In addition, your vehicles must be assigned to one of PHEMlight's vehicle emission classes, summarised in the following table. To use the emission classes below prepend the class name with the PHEMlight prefix, e.g. emissionClass="PHEMlight/PKW_G_EU4".

Explanations for the 2.0 naming conventions

The name is composed of the vehicle category and size, the technology and the emission standard, all connected with underscores.

Vehicle Category and Size Classes

PC
passenger cars
LCV
light commercial vehicles; differentiation into size classes according to legislation (N1-I, N1-II, N1-III); size class I RM < 1305kg; size class II 1305kg < RM <= 1760kg; size class III 1760kg < RM <= 3500kg; "RM": reference mass (approx. Vehicle curb weight)
HDV_RT
heavy duty vehicles - rigid trucks; size class I 2 axle trucks; size class II 3+ axle trucks
HDV_TT
heavy duty vehicles - truck + trailer (incl. articulated trucks = tractor + semitrailer)
HDV_CB
heavy duty vehicles - city bus
HDV_CO
heavy duty vehicles - coach
MC_2S
motorcycles - 2 stroke (not included)
MC_4S
motorcycles - 4 stroke (not included)
MOP
moped (not included)

Technology

G
gasoline engine (conventional powertrain)
D
diesel engine (conventional powertrain)
G_HEV
gasoline engine (parallel hybrid powertrain)
D_HEV
diesel engine (parallel hybrid powertrain)
CNG
Compressed Natural Gas engine
BEV
battery electric vehicles

Examples

PC_G_EU6
passenger car, gasoline engine, EURO 6
PC_BEV
passenger car, battery electric
LCV_III_CNG_EU6
light commercial vehicle, size class III, CNG engine, Euro 6
HDV_RT_I_D_EU4
rigid truck, size class I, diesel engine, EURO IV
HDV_CB_D_EU5
city bus, diesel engine, Euro V

Remarks on Hybrid vehicles

The fleet average "HEV" vehicles in PHEM and PHEMlight do NOT match with single particular vehicles in the market (e.g. Toyota Prius) but have been defined as follows:

  1. Baseline vehicle setup (e.g. vehicle size) similar than related conventional vehicle
  2. Total rated vehicle power of baseline conventional vehicle split to combustion engine and to electric motor (EM)
  3. Additional vehicle weight due to EM and battery considered
  4. Application of generic parallel hybrid operation strategy (recuperation, boosting, charching etc.)

Also note that plugin hybrids (where the main powertrain is electric) should be modelled as battery vehicles and need to switch their emission class (and thus their vehicle type in SUMO) when running conventional.


The following tables show the available classes. Some classes (especially for motor cycles) were removed in the 2.0 version and some (especially alternative fuels) are only available there.

PHEMlight Emission Classes for Light Vehicles running on Diesel or Gasoline

Passenger Cars Light Duty Vehicles
2.0.0.0 2.0.0.0 2.0.0.0 2.0.0.0
PKW_D_EU0 PC_D_EU0 LNF_D_EU0_I LCV_I_D_EU0 LNF_D_EU0_II LCV_II_D_EU0 LNF_D_EU0_III LCV_III_D_EU0
PKW_D_EU1 PC_D_EU1 LNF_D_EU1_I LCV_I_D_EU1 LNF_D_EU1_II LCV_II_D_EU1 LNF_D_EU1_III LCV_III_D_EU1
PKW_D_EU2 PC_D_EU2 LNF_D_EU2_I LCV_I_D_EU2 LNF_D_EU2_II LCV_II_D_EU2 LNF_D_EU2_III LCV_III_D_EU2
PKW_D_EU3 PC_D_EU3 LNF_D_EU3_I LCV_I_D_EU3 LNF_D_EU3_II LCV_II_D_EU3 LNF_D_EU3_III LCV_III_D_EU3
PKW_D_EU4 PC_D_EU4 LNF_D_EU4_I LCV_I_D_EU4 LNF_D_EU4_II LCV_II_D_EU4 LNF_D_EU4_III LCV_III_D_EU4
PKW_D_EU5 PC_D_EU5 LNF_D_EU5_I LCV_I_D_EU5 LNF_D_EU5_II LCV_II_D_EU5 LNF_D_EU5_III LCV_III_D_EU5
PKW_D_EU6 PC_D_EU6 LNF_D_EU6_I LCV_I_D_EU6 LNF_D_EU6_II LCV_II_D_EU6 LNF_D_EU6_III LCV_III_D_EU6
PC_D_EU6c LCV_I_D_EU6c LCV_II_D_EU6c LCV_III_D_EU6c
PKW_G_EU0 PC_G_EU0 LNF_G_EU0_I LCV_I_G_EU0 LNF_G_EU0_II LCV_II_G_EU0 LNF_G_EU0_III LCV_III_G_EU0
PKW_G_EU1 PC_G_EU1 LNF_G_EU1_I LCV_I_G_EU1 LNF_G_EU1_II LCV_II_G_EU1 LNF_G_EU1_III LCV_III_G_EU1
PKW_G_EU2 PC_G_EU2 LNF_G_EU2_I LCV_I_G_EU2 LNF_G_EU2_II LCV_II_G_EU2 LNF_G_EU2_III LCV_III_G_EU2
PKW_G_EU3 PC_G_EU3 LNF_G_EU3_I LCV_I_G_EU3 LNF_G_EU3_II LCV_II_G_EU3 LNF_G_EU3_III LCV_III_G_EU3
PKW_G_EU4 PC_G_EU4 LNF_G_EU4_I LCV_I_G_EU4 LNF_G_EU4_II LCV_II_G_EU4 LNF_G_EU4_III LCV_III_G_EU4
PKW_G_EU5 PC_G_EU5 LNF_G_EU5_I LCV_I_G_EU5 LNF_G_EU5_II LCV_II_G_EU5 LNF_G_EU5_III LCV_III_G_EU5
PKW_G_EU6 PC_G_EU6 LNF_G_EU6_I LCV_I_G_EU6 LNF_G_EU6_II LCV_II_G_EU6 LNF_G_EU6_III LCV_III_G_EU6
PC_G_EU6c LCV_I_G_EU6c LCV_II_G_EU6c LCV_III_G_EU6c


PHEMlight Emission Classes for Light Vehicles running on alternative fuels

Passenger Cars Light Duty Vehicles
2.0.0.0 2.0.0.0 2.0.0.0 2.0.0.0
PC_BEV LCV_I_BEV LCV_II_BEV LCV_III_BEV
PC_CNG_EU5 LCV_I_CNG_EU5 LCV_II_CNG_EU5 LCV_III_CNG_EU5
PC_CNG_EU6 LCV_I_CNG_EU6 LCV_II_CNG_EU6 LCV_III_CNG_EU6
PC_CNG_EU6c LCV_I_CNG_EU6c LCV_II_CNG_EU6c LCV_III_CNG_EU6c
H_PKW_D_EU5
H_PKW_D_EU6 PC_D_HEV_EU6 LCV_I_D_HEV_EU6 LCV_II_D_HEV_EU6 LCV_III_D_HEV_EU6
PC_D_HEV_EU6c LCV_I_D_HEV_EU6c LCV_II_D_HEV_EU6c LCV_III_D_HEV_EU6c
H_PKW_G_EU5
H_PKW_G_EU6 PC_G_HEV_EU6 LCV_I_G_HEV_EU6 LCV_II_G_HEV_EU6 LCV_III_G_HEV_EU6
PC_G_HEV_EU6c LCV_I_G_HEV_EU6c LCV_II_G_HEV_EU6c LCV_III_G_HEV_EU6c

PHEMlight Emission Classes for Motor Cycles

Motor cycles are only available for the old data set (pre 2016)

Two-Wheelers Motor Cycles
KKR_G_EU0 MR_G_EU0_2T MR_G_EU0_4T
KKR_G_EU1 MR_G_EU1_2T MR_G_EU1_4T
KKR_G_EU2 MR_G_EU2_2T MR_G_EU2_4T
KKR_G_EU3 MR_G_EU3_2T MR_G_EU3_4T
KKR_G_EU4 MR_G_EU4_2T MR_G_EU4_4T
MR_G_EU5_2T MR_G_EU5_4T

PHEMlight Emission Classes for Heavy Vehicles

Tractor/Trailor Coach Urban and Inter Urban Buses Trucks
2.0.0.0 2.0.0.0 2.0.0.0 2.0.0.0 2.0.0.0
HDV_CB_BEV
HDV_CB_CNG_EU6
LSZ_D_EU0 LSZ_D_EU0 RB_D_EU0 HDV_CO_D_EU0 LB_D_EU0 HDV_CB_D_EU0 SOLO_LKW_D_EU0_I HDV_RT_I_D_EU0 SOLO_LKW_D_EU0_II HDV_RT_II_D_EU0
LSZ_D_EU1 HDV_TT_D_EU1 RB_D_EU1 HDV_CO_D_EU1 LB_D_EU1 HDV_CB_D_EU1 SOLO_LKW_D_EU1_I HDV_RT_I_D_EU1 SOLO_LKW_D_EU1_II HDV_RT_II_D_EU1
LSZ_D_EU2 HDV_TT_D_EU2 RB_D_EU2 HDV_CO_D_EU2 LB_D_EU2 HDV_CB_D_EU2 SOLO_LKW_D_EU2_I HDV_RT_I_D_EU2 SOLO_LKW_D_EU2_II HDV_RT_II_D_EU2
LSZ_D_EU3 HDV_TT_D_EU3 RB_D_EU3 HDV_CO_D_EU3 LB_D_EU3 HDV_CB_D_EU3 SOLO_LKW_D_EU3_I HDV_RT_I_D_EU3 SOLO_LKW_D_EU3_II HDV_RT_II_D_EU3
LSZ_D_EU4 HDV_TT_D_EU4 RB_D_EU4 HDV_CO_D_EU4 LB_D_EU4 HDV_CB_D_EU4 SOLO_LKW_D_EU4_I HDV_RT_I_D_EU4 SOLO_LKW_D_EU4_II HDV_RT_II_D_EU4
LSZ_D_EU5 HDV_TT_D_EU5 RB_D_EU5 HDV_CO_D_EU5 LB_D_EU5 HDV_CB_D_EU5 SOLO_LKW_D_EU5_I HDV_RT_I_D_EU5 SOLO_LKW_D_EU5_II HDV_RT_II_D_EU5
LSZ_D_EU6 HDV_TT_D_EU6 RB_D_EU6 HDV_CO_D_EU6 LB_D_EU6 HDV_CB_D_EU6 SOLO_LKW_D_EU6_I HDV_RT_I_D_EU6 SOLO_LKW_D_EU6_II HDV_RT_II_D_EU6
HDV_CB_D_HEV_EU6

Special Classes

The special class zero may be used to specify a vehicle without emissions.

Further Ressources


Seventh Framework Programme COLOMBO project This part of SUMO was developed, reworked, or extended within the project "COLOMBO", co-funded by the European Commission within the Seventh Framework Programme.