AES |
automatic engine shutdown |
ALHT |
automated long-haul truck |
APU |
auxiliary power unit |
ATA |
American Trucking Associations |
ATIS |
automatic tire inflation system |
ATRI |
American Transportation Research Institute |
BEES |
Board on Energy and Environmental Systems |
BEV |
battery electric vehicle |
BTL |
biomass to liquids |
BTU |
British thermal unit |
CAFE |
Corporate Average Fuel Economy |
CalHEAT |
California Hybrid, Efficient and Advanced Truck Research Center |
CARB |
California Air Resources Board |
CFD |
computational fluid dynamics |
CH4 |
methane |
CI |
compression ignition |
CNG |
compressed natural gas |
CO |
carbon monoxide |
CO2 |
carbon dioxide |
DEF |
diesel emission fluid |
DME |
dimethyl ether |
DOE |
U.S. Department of Energy |
DOT |
U.S. Department of Transportation |
DPF |
diesel particulate filter |
EGR |
exhaust gas recirculation |
EIA |
Energy Information Administration |
EISA |
Energy Independence and Security Act |
EPA |
U.S. Environmental Protection Agency |
EPACT |
Energy Policy Act of 2005 |
FC |
fuel consumption |
FCV |
fuel-cell vehicle |
FHWA |
Federal Highway Administration |
FMCSA |
Federal Motor Carrier Safety Administration |
FMEP |
friction mean effective pressure |
FT |
Fischer-Tropsch (process) |
FTA |
Federal Transit Administration |
FTP |
Federal Test Procedure |
GCVW |
gross combination vehicle weight |
GCVWR |
gross combination vehicle weight rating |
GDI |
gasoline direct injection |
GEM |
GHG Emissions Model |
GHG |
greenhouse gas |
GTI |
Gasoline Technology Institute |
GTL |
gas to liquid |
GVW |
gross vehicle weight |
GVWR |
gross vehicle weight rating |
HCCI |
homogeneous-charge compression ignition |
HEDGE |
high-efficiency dilute gasoline engine |
HEV |
hybrid electric vehicle |
HP |
high pressure |
HPDI |
high-pressure direct injection |
HVAC |
heating, ventilation, and air conditioning |
ISO |
International Organization for Standardization |
LCV |
longer combination vehicle |
LDV |
light-duty vehicle |
LED |
light-emitting diode |
LNG |
liquefied natural gas |
LRR |
low rolling resistance |
LSFC |
load-specific fuel consumption |
LTC |
low-temperature combustion |
MHDVs |
medium- and heavy-duty vehicles |
MTBE |
methyl tertiary butyl ether |
MY |
model year |
N2O |
nitrous oxide |
NACFE |
North American Council for Freight Efficiency |
NG |
natural gas |
NHTSA |
National Highway Traffic Safety Administration |
NOx |
oxides of nitrogen |
NPC |
National Petroleum Council |
NRC |
National Research Council |
NREL |
National Renewable Energy Laboratory |
OEM |
original equipment manufacturer |
OMB |
Office of Management and Budget |
ORNL |
Oak Ridge National Laboratory |
PCCI |
premixed charge compression ignition |
PCP |
peak cylinder pressure |
PFI |
port fuel injection |
PHEV |
plug-in hybrid electric vehicle |
PM |
particulate matter |
PNNL |
Pacific Northwest National Laboratory |
PTO |
power take-off |
R&D |
research and development |
RCCI |
reactivity-controlled compression ignition |
RFS |
Renewable Fuels Standard |
RFS2 |
Renewable Fuel Standard (2) |
RIA |
Regulatory Impact Analysis |
RMA |
Rubber Manufacturers Association |
SAE |
Society of Automotive Engineers |
SCR |
selective catalytic reduction |
SET |
supplemental emissions test |
SI |
spark-ignition |
SUT |
single unit truck |
SwRI |
Southwest Research Institute |
TPMS |
tire pressure monitoring (and maintenance) system |
TPS |
tire pressure systems |
TWC |
three-way catalyst |
VIUS |
Vehicle Inventory and Use Survey |
VMT |
vehicle-miles traveled |
WBST |
wide-base single tire |
ZEV |
zero emission vehicle |