Green Car Congress

JUNE 11, 2019

g/bhp-hr in low load operation using the proposed low load certification cycle being developed at Southwest Research Institute under a contract from the California Air Resources Board (CARB). Source of data: US EPA (2019). gram per brake horsepower hour (g/bhp-hr) on the heavy-duty FTP certification cycle and approximately 0.2

Standards 191

Standards Diesel 2019 Emissions 191

Green Car Congress

FEBRUARY 5, 2020

Source of data: US EPA (2019). EPA is targeting implementation in the 2027 timeframe while CARB is focusing efforts on phasing in more stringent standards in 2024 and again in 2027 with the hope of aligning with EPA as a national standard. Chart: MECA.

Emissions 291

Emissions Diesel Engine 2010 291

Green Car Congress

APRIL 19, 2013

Given the properties of the fuel blend, improved fuel efficiencies can be generated by several approaches, including downsizing/downspeeding; increased compression ratio; reduced enrichment; and the leveraging of improved efficiency at part load. Downsizing/downspeeding. Earlier post.). Reduced enrichment. 1 CR offered a 4.8%

Engine 253

Engine Fuel Ford Future 253

Green Car Congress

OCTOBER 16, 2013

As reported in a paper in ACS journal Environmental Science & Technology , the results showed that GDI technology has the potential to meet the upcoming California LEV III and US EPA Tier 3 PM mass standard of 3 mg/mi (phasing in over MY2017?2021) Schematic diagram of test vehicle engine & exhaust system and PM sampling systems.

Standards 246

Standards Emissions Miles Engine 246

Green Car Congress

MARCH 27, 2015

The Freightliner SuperTruck uses a downsized and downsped 10.7-liter The Freightliner SuperTruck features a low-back-pressure, next-generation aftertreatment system that efficiently removes NO x from the exhaust stream. The aftertreatment system features additional insulation to retain maximum heat energy in the exhaust.

2009 150

2009 Engine Detroit Oregon 150

Green Car Congress

NOVEMBER 23, 2011

The 21CTP is a cooperative research and development (R&D) partnership including four federal agencies—the US Department of Energy (DOE), US Department of Transportation (DOT), US Department of Defense (DOD), and the US Environmental Protection Agency (EPA)—and 15 industrial partners. HYBRID VEHICLES. Recommendation 4-3.

EPA 199

EPA Fuel Engine Hybrid 199

Green Car Congress

MAY 12, 2017

The study, by a team of researchers from Carnegie Mellon University, University of Georgia, Aerodyne Research, California Air Resources Board (ARB), Ohio State University, UC Berkeley, and UC San Diego is published in the ACS journal Environmental Science & Technology. The EPA GHG program is aimed at reducing tailpipe CO 2 emissions.

Fleet 207

Fleet Engine Global Fuel Economy 207