Green Car Congress

JULY 18, 2022

The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). The E15 fuel was created by splash-blending denatured ASTM D4806 fuel grade ethanol with the final E10 fuel.

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Fuel Economy Economy Fuel Ozone 186

Green Car Congress

FEBRUARY 23, 2020

Approximately 6 billion gallons of fuel are wasted in the US each year as vehicles wait at stop lights or sit in dense traffic with engines idling, according to US Department of Energy estimates. —Tim Gee, principal computer vision engineer at GRIDSMART.

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Light Fuel Vehicles 2018 359

Green Car Congress

JANUARY 18, 2013

Huff Fuels, Engines and Emissions Research Center, Oak Ridge National Laboratory. This website, jointly maintained by the US Department of Energy and the US Environmental Protection Agency (EPA), provides information such as official EPA “window label” fuel economy estimates for city, highway, and combined driving for all U.S.-legal

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Fuel Economy Economy Fuel MPH 326

Green Car Congress

NOVEMBER 3, 2017

Initially, the researchers have focused on the combustion of liquid fuel sprays found in engines, where the extreme pressures and temperatures create an environment that is optically challenging. The soot cloud downstream appears dark mainly due to absorption of light by the soot particles. —Sandia researcher Scott Skeen.

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Fuel Economy Economy Emissions Fuel 150

Green Car Congress

OCTOBER 10, 2014

EPA released the latest edition of its annual report on trends in CO 2 emissions, fuel economy and powertrain technology for new personal vehicles in the US. Fuel economy has now increased in eight of the last nine years; average carbon dioxide emissions are also at a record low of 369 g/mile in model year 2013.

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Fuel Economy MPG Economy EPA 230

Green Car Congress

SEPTEMBER 7, 2017

A team at Carnegie Mellon University has found that engineering design modifications that compromise other performance attributes—specifically acceleration—offer a pathway to reduce the cost to automakers of compliance with fuel economy standards. —Whitefoot et al.

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Fuel Economy Economy Design Fuel 150

Green Car Congress

MARCH 22, 2017

l/100 km) in 2016, the The ICCT team assessed increased consumer label fuel economy (as opposed to the regulatory test fuel economy) to 35 mpg (6.71 The resulting trajectory would reduce CO 2 emissions by half and increase fuel economy by more than 60% from 2016 through 2030. Advanced engines.

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Fuel Economy Economy Fuel Price 210

Green Car Congress

JANUARY 13, 2017

In an expected ruling, US Environmental Protection Agency (EPA) Administrator Gina McCarthy finalized her decision to maintain the current greenhouse gas (GHG) emissions standards for model years 2022-2025 cars and light trucks. mpg-e (if all reductions were achieved exclusively through fuel economy improvements). Earlier post.)

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EPA Light Standards Fuel Economy 150

Green Car Congress

JUNE 29, 2013

A study by Sage Kokjohn, Senior Engineer in Combustion Research at Cummins Inc., Rolf Reitz of the University of Wisconsin found that reactivity controlled compression ignition (RCCI) ( earlier post ) in a light-duty engine can meet Tier 2 Bin 5 NO x levels without aftertreatment, while offering a 4% improvement in fuel consumption and 7.3%

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Light Engine Wisconsin Fuel Economy 207

Green Car Congress

JULY 11, 2017

The International Council on Clean Transportation (ICCT), one of the organizations at the root of uncovering the Volkswagen diesel emission scandal ( earlier post ), has published a new analysis of developments and trends in advanced diesel engine technology. Background. miles per gallon in model year 2016, and 49.1

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Diesel Light Fuel Economy 2017 186

Green Car Congress

MARCH 6, 2013

Sivak found that while the vehicle fuel economy of the entire light-duty fleet improved by 40% (from 13 mpg US to 21.6 l/100km), because of the decrease in vehicle load, the occupant fuel economy only improved by 17% (from 24.8 Combining these two effects yields a reduction of about 14% in the amount of fuel used.

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Fuel Economy Economy Fuel North America 311

Green Car Congress

DECEMBER 13, 2013

EPA projects advanced transmissions (6+ speeds and CVTs), gasoline direct injection (GDI) systems, and turbocharged engines will be installed on at least 15% of all MY 2013 vehicles. MY 2012 adjusted fuel economy is 23.6 l/100 km) fuel economy, which, if achieved, will again represent all-time records. mpg, or 22%.

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Fuel Economy 2012 Economy EPA 247

Green Car Congress

SEPTEMBER 11, 2013

The first rapid prototype of their Thermoelectric Generator (TEG) for light vehicle applications is on display at Tenneco’s booth at the 2013 Frankfurt IAA Motor Show. For light duty passenger vehicles, the fuel economy improvement must be measured over the US06 cycle. Fuel Efficiency Thermoelectrics'

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Fuel Economy Waste Economy Fuel 218

Green Car Congress

JUNE 15, 2021

The study considers five different powertrains (internal combustion engine, hybrid-electric, plug-in hybrid-electric, fuel-cell-electric, and battery-electric) and 12 cost components (purchase cost, depreciation, financing, fuel, insurance, maintenance, repair, taxes, registration fees, tolls and parking, payload capacity and labor).

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Maintenance Cost Of Chad Plug-in 418

Green Car Congress

MARCH 11, 2012

Light duty vehicle characteristics for seven model years. Conventional gasoline vehicles continue to account for more than 95% of all light-duty vehicles. While engine size has been decreasing slightly in recent years, overall engine horsepower has continued to increase, with the notable exception of MY 2009. in MY 2009.

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Fuel Economy 2011 Economy EPA 236

Green Car Congress

AUGUST 17, 2015

In a new report, researchers at the University of Michigan Transportation Research Institute (UMTRI) have calculated the actual, on-road fuel economy for the entire fleet of all vehicles in the US, and for different classes of vehicles, with primary interest in light-duty vehicles (cars, pickup trucks, vans, and SUVs), between 1923 and 2013.

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Fuel Economy 2013 Economy MPG 150

Green Car Congress

MARCH 15, 2013

Adjusted CO 2 emissions and adjusted fuel economy, MY 1975-2011. The report finds that CO 2 emissions rates and fuel economy values reflect a very favorable multi-year trend beginning in MY 2005. The fleet-wide average real world MY 2011 personal vehicle CO 2 emissions value is 398 g/mi and average fuel economy is 22.4

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Fuel Economy 2012 EPA Economy 284

Green Car Congress

JANUARY 15, 2018

and Saudi Aramco’s US-based subsidiary Aramco Services Company (ASC) have signed a joint development agreement providing the framework for the two companies to work together on a series of Opposed-Piston (OP) Engine projects, which will speed the development of new efficient, low-emissions powertrain choices. Achates Power, Inc.

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Gasoline Engine Companies Powered 240

Green Car Congress

APRIL 2, 2018

The US Environmental Protection Agency (EPA) Administrator Scott Pruitt announced the completion of the Midterm Evaluation (MTE) process for the greenhouse gas (GHG) emissions standards for cars and light trucks for model years 2022-2025, and his final determination that the current standards are not appropriate and should be revised.

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EPA Standards Emissions Light 199

Green Car Congress

FEBRUARY 22, 2018

The found that using a GPF did not show any fuel economy and CO 2 emission penalties, while the emissions of total hydrocarbons (THC), carbon monoxide (CO), and nitrogen oxides (NOx) were generally reduced. liter all-guided direct injection SI Atkinson cycle engine; the second was equipped with a 1.5-liter Yang et al.

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Gasoline Emissions Engine Fuel Economy 253

Green Car Congress

SEPTEMBER 8, 2011

The types of vehicles consumers select has by far the most dominant impact on on-road fuel economy—the best vehicle currently available for sale in the US is nine times more fuel efficient than the worst vehicle. Average on-road fuel economy in the US for all vehicles in 2008 was 17.4 mpg US (13.5

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Fuel Economy Economy Fuel North America 252

Green Car Congress

MARCH 7, 2018

The California Air Resource Board (CARB) is awarding $7 million to CALSTART to develop a Class 8 truck that will achieve a 90% reduction in NO x along with a 15-20% fuel efficiency improvement. This program will demonstrate the first diesel engine to comply with the state standard. grams per brake horsepower-hour (g/bhp/hr).

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California Engine Diesel 2017 230

Green Car Congress

NOVEMBER 20, 2009

Adjusted CO 2 emissions and adjusted fuel economy by model year. For the fifth consecutive year, the US Environmental Protection Agency (EPA) is reporting an increase in new vehicle fuel efficiency with a corresponding decrease in average carbon dioxide emissions for new US cars and light duty trucks. Source: EPA.

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Fuel Economy 2004 Economy EPA 268

Green Car Congress

OCTOBER 4, 2013

a new 5-liter V8 diesel engine designed to power pickup-and-delivery vehicles, other light- and medium-duty trucks, school buses and motorhomes. extends Cummins range of on-road diesel engines for North American vehicles. —Dave Crompton, Cummins Vice President and General Manager – Engine Business. The new ISV 5.0

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Diesel Light Commercial Vehicles 247

Green Car Congress

OCTOBER 27, 2017

Achates Power, the developer of next-generation two-stroke compression-ignition opposed-piston (OP) engines ( earlier post ) announced that OGCI Climate Investments has invested in the company’s Series-D round. It has proven industry-best fuel economy gains of up to 30 percent and significant emissions reductions.

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Climate Engine Powered Power 170

Green Car Congress

MARCH 5, 2013

Vehicle size, a key determinant of fuel economy, has shown a reduction in OECD countries, while the non-OECD trend is toward bigger vehicles. The analysis, an update of an earlier work using data from 2010 and 2011, found that the global average for light-duty vehicle fuel economy was 7.2 Source: GFEI.

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Fuel Economy Economy Fuel 2005 170

Green Car Congress

AUGUST 9, 2011

For purposes of the new HD National Program, the heavy-duty fleet incorporates all on-road vehicles rated at a gross vehicle weight at or above 8,500 pounds, and the engines that power them, except those covered by the current GHG emissions and Corporate Average Fuel Economy standards for model year 2012-2016 passenger vehicles.

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Fuel Economy Standards Obama Economy 344

Green Car Congress

SEPTEMBER 17, 2015

A team led by researchers from the National Research Council Canada has investigated the effect of the use of a gasoline particulate filter on the size and morphology of PM emitted from a light-duty gasoline-direct-injection (GDI) vehicle over the FTP-75 and US06 transient drive cycles. Credit: ACS, Saffaripour et al. Click to enlarge.

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Gasoline Canada Engine Light 150

Green Car Congress

MARCH 27, 2020

For the past four years, the Co-Optimization of Fuels & Engines (Co-Optima) National Laboratory consortium has focused research efforts primarily on turbocharged (boosted) spark-ignition (SI) engines for light-duty vehicles. The report highlights researchers’ answers to three vital questions: What fuels do engines want?

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Alcohol Blend Fuel Engine Fuel Economy 243

Green Car Congress

MAY 18, 2012

Light-duty vehicle fuel economy penalties for CNG in conventional engines, with and without scaling for performance equivalence. the CNG-fueled engine has lower performance) and up to a 12% fuel consumption penalty when the engine is resized (i.e., “up-sizing”) Source: ANL. Click to enlarge.

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Light Fuel Gasoline-Electric Vehicles 218

Green Car Congress

JUNE 4, 2020

After completing a major body of research focused on boosted (also known as turbocharged) spark ignition (SI) engines in Fiscal Year (FY) 2018, Co-Optima’s FY 2019 LD research and development (R&D) shifted to multimode solutions that employ multiple engine operating modes to maximize engine efficiency and fuel economy.

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Fuel Economy 2019 Diesel Engine 243

Green Car Congress

JANUARY 19, 2014

Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The starting point of engine braking is marked by a vertical green line, and the end point is marked by a vertical red line.

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Exhaust Engine Fuel Greece 319

Green Car Congress

NOVEMBER 18, 2010

For 2009, the last year EPA has final data from automakers, the average CO 2 emissions from new vehicles were 397 grams per mile and the average fuel economy value was 22.4 The report confirms that average CO 2 emissions have decreased and fuel economy has increased each year beginning in 2005. mpg (10.45

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Fuel Economy 2009 2010 EPA 210

Green Car Congress

JULY 14, 2016

The upside of gasoline direct injection (GDI) engines is widely seen as being improved fuel economy coupled with an increase in specific power (especially with turbocharging), enabling significant downsizing. The extent of fuel-air mixing can be affected by injection system design. Credit: ACS, Zimmerman et al.

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Climate Engine Carbon Fuel Economy 150

Green Car Congress

AUGUST 2, 2012

Projected range of impact of demand, fuel efficiency improvements, and alternative fuel-vehicle systems on light-duty fleet GHG emissions. On a stand-alone basis, all light-, medium-, and heavy-duty vehicles have the potential to reduce per-mile GHG emissions by at least 40% in 2050, relative to 2005 average fleet levels.

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Light Miles Energy Lithium Ion 240

Green Car Congress

OCTOBER 1, 2010

The US Department of Transportation’s (DOT) National Highway Traffic Safety Administration (NHTSA) and the US Environmental Protection Agency (EPA) issued a Notice of Intent (NOI) to begin developing new standards for greenhouse gases and fuel economy for light-duty vehicles for the 2017-2025 model years. Earlier post.).

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Fuel Economy EPA 2017 Economy 199

Green Car Congress

SEPTEMBER 20, 2012

IEA fuel economy readiness index status, 2010. New propulsion systems requiring new fuels, such as plug-in electric vehicle systems and fuel cell systems, are beyond the scope of this technology roadmap and are treated in separate roadmaps. Average fuel economy and new vehicles registrations, 2005 and 2008.

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Fuel Economy Fuel Transportation Engine 236