Common builds for embrs vehicle objects.
Usage
embrs_ice(
veh.wt = NULL,
veh.type = NULL,
eng.fuel = NULL,
euro.class = NULL,
n = 1,
method = "embrs1",
name = NULL,
...
)
embrs_bev(
veh.wt = NULL,
veh.type = NULL,
n = 1,
method = "embrs1",
name = NULL,
...
)Arguments
- veh.wt
(required numeric) weight of vehicle in kg.
- veh.type
(required character) type of vehicle, e.g bus.
- eng.fuel
(required character) the engine fuel used by the vehicle, currently only diesel.
- euro.class
(required character) vehicle EURO classification, e.g. PRE, I, II, III, IV, V or VI.
- n
(numeric) number of vehicles, default 1.
- method
(character) vehicle model, currently one of: beddows, embrs1 (default) or embrs2.
- name
(character) name of the vehicle object.
- ...
other arguments, currently passed on to emission factor (ef) models. In some cases, these may request additional inputs, e.g. when ef_vein_eea has more than one ef model for a given vehicle/engine/fuel/euro.class combination exhaust emission model it may also request the exhaust technology (exh.tech), see ?ef_vein_eea_exhaust.
Value
These functions make common vehicle objects for use in embrs
emissions models. The main models ice_build and bev_build are for internal compression engine and battery electric vehicles, respectively.
References
These functions are based on methods developed and reported by:
Beddows, D.C. and Harrison, R.M., 2021. PM10 and PM2.5 emission factors for non-exhaust particles from road vehicles: Dependence upon vehicle mass and implications for battery electric vehicles. Atmospheric Environment, 244, p.117886. https://doi.org/10.1016/j.atmosenv.2020.117886.
And, extrapolated to speed (embrs1) and, break/tyre-wear (embrs2) related emission factors in:
Tivey, J., Davies, H.C., Levine, J.G., Zietsman, J., Bartington, S., Ibarra-Espinosa, S. and Ropkins, K, 2023. Meta-Analysis as Early Evidence on the Particulate Emissions Impact of EURO VI on Battery Electric Bus Fleet Transitions. Sustainability 15, 1522. https://doi.org/10.3390/su15021522