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Suggested Citation:"Appendix D: Acronyms and Abbreviations." Transportation Research Board and National Research Council. 2014. Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two: First Report. Washington, DC: The National Academies Press. doi: 10.17226/18736.
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D

Acronyms and Abbreviations

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

Suggested Citation:"Appendix D: Acronyms and Abbreviations." Transportation Research Board and National Research Council. 2014. Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two: First Report. Washington, DC: The National Academies Press. doi: 10.17226/18736.
×
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

Suggested Citation:"Appendix D: Acronyms and Abbreviations." Transportation Research Board and National Research Council. 2014. Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two: First Report. Washington, DC: The National Academies Press. doi: 10.17226/18736.
×
Page 100
Suggested Citation:"Appendix D: Acronyms and Abbreviations." Transportation Research Board and National Research Council. 2014. Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two: First Report. Washington, DC: The National Academies Press. doi: 10.17226/18736.
×
Page 101
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Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two: First Report Get This Book
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Medium- and heavy-duty trucks, motor coaches, and transit buses - collectively, "medium- and heavy-duty vehicles", or MHDVs - are used in every sector of the economy. The fuel consumption and greenhouse gas emissions of MHDVs have become a focus of legislative and regulatory action in the past few years. Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two is a follow-on to the National Research Council's 2010 report, Technologies and Approaches to Reducing the Fuel Consumption of Medium-and Heavy-Duty Vehicles. That report provided a series of findings and recommendations on the development of regulations for reducing fuel consumption of MHDVs.

This report comprises the first periodic, five-year follow-on to the 2010 report. Reducing the Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two reviews NHTSA fuel consumption regulations and considers the technological, market and regulatory factors that may be of relevance to a revised and updated regulatory regime taking effect for model years 2019-2022. The report analyzes and provides options for improvements to the certification and compliance procedures for medium- and heavy-duty vehicles; reviews an updated analysis of the makeup and characterization of the medium- and heavy-duty truck fleet; examines the barriers to and the potential applications of natural gas in class 2b through class 8 vehicles; and addresses uncertainties and performs sensitivity analyses for the fuel consumption and cost/benefit estimates.

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