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

APRIL 12, 2018

Researchers at Jilin University (China) have investigated the effect of gasoline components on fuel economy, combustion and emissions in a GDI (gasoline-direct-injection) engine. The team subsequently followed up this first study with a second, exploring the effects in a PFI (port-fuel-injection) engine. —Han et al.

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Fuel Economy Gasoline Economy Emissions 186

Green Car Congress

NOVEMBER 11, 2014

ILSAC GF-5 represents the latest performance standard set by the International Lubricant Standardization and Approval Committee (ILSAC). A key component of the ILSAC GF-5 designation is demonstrated fuel economy improvement. A key component of the ILSAC GF-5 designation is demonstrated fuel economy improvement.

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Fuel Economy Oil Economy Motor 230

Green Car Congress

APRIL 10, 2014

Researchers at Oak Ridge National Laboratory (ORNL) have quantified the fuel economy effects of some common driver practices and vehicle accessories or alterations—including underinflated tires, open windows, and rooftop and hitch-mounted cargo. liter four-cylinder engine, also suffered as its fuel economy dipped 22% from 42.5

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Fuel Economy Economy Cost Of Fuel 313

Green Car Congress

AUGUST 9, 2011

US President Barack Obama announced fuel efficiency and greenhouse gas emission standards for medium- and heavy-duty vehicles. Heavy-duty engines affected by the final standards are generally those that are installed in commercial medium- and heavy-duty trucks and buses. Heavy-Duty Pickup Trucks and Vans.

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Fuel Economy Standards Obama Economy 344

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 vehicle test matrix had provisions for five vehicles on each emissions standards category (i.e.,

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Fuel Economy Economy Fuel Ozone 186

Green Car Congress

SEPTEMBER 27, 2017

An analysis by a team from the University of California, Davis, MIT and Yale suggests that households that buy a fuel-efficient vehicle tend to compensate for that purchase by buying a bigger, more powerful second vehicle. This unintended effect could erode goals of fuel economy standard policies by up to 60%.

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Fuel Economy Economy Buy Fuel 150

Green Car Congress

JANUARY 18, 2013

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 drop in fuel economy due to traveling 80 mph rather than 70 mph.

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Fuel Economy Economy Fuel MPH 326

Green Car Reports

AUGUST 9, 2018

In response to an EPA proposal to freeze emissions and fuel economy standards, California said it will not honor federal vehicle certifications if the proposal goes through.

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Fuel Economy EPA Economy California 108

Green Car Congress

SEPTEMBER 29, 2012

Laboratory and in-use fuel economy results Source: NREL. The NREL team collected and analyzed in-service fuel economy, maintenance, and other vehicle performance data on 11 hybrid (P100H) and 11 conventional diesel (P100D) step vans operated by the United Parcel Service (UPS) in Minneapolis. Click to enlarge.

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Fuel Economy Economy Hybrid Diesel 350

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. Source: The ICCT.

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Fuel Economy Economy Fuel Price 210

Green Car Congress

AUGUST 19, 2011

Japan’s Ministry of Economy, Trade and Industry and Ministry of Land, Infrastructure, Transport and Tourism announced a draft of new fuel economy standards for cars that will require improvements of 24.1% Under japan’s current scheme, automakers must meet varying standards in 16 vehicle weight classes.

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Fuel Economy Economy 2020 Japan 218

Green Car Congress

MARCH 14, 2013

The new SuperTruck achieved a 54% increase in fuel economy. and Peterbilt Motors Company, a division of PACCAR, released test results showing their demonstration SuperTruck tractor-trailer achieved a 54% increase in fuel economy, averaging nearly 10 mpg US (23.5 Click to enlarge. Cummins Inc. David Koeberlein, Cummins.

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Peterbilt Fuel Economy Economy Fuel 342

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. The Standards Will Achieve Significant CO 2 and Oil Reductions. Earlier post.) Click to enlarge.

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EPA Light Standards Fuel Economy 150

Green Car Congress

NOVEMBER 22, 2012

trillion) through to 2050 and can help cut the world’s road transport energy use and CO 2 emissions by nearly half in that same time, by improving vehicle fuel economy, according to an opinion paper recently published by the Commonwealth Advisory Bureau (CAB) and sponsored by the Global Fuel Economy Initiative (GFEI).

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Fuel Economy Economy Oil Trinidad 246

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

MAY 2, 2012

The Global Fuel Economy Initiative ( GFEI ) ( earlier post ) launched its second three-year effort to improve vehicle fuel economy around the world at the International Transport Forum in Leipzig. —“Global Fuel Economy Initiative Plan of Action 2012-2015. Earlier post.). Policy support.

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Fuel Economy Economy Global Fuel 231

Green Car Congress

JUNE 14, 2011

Plug-in hybrids dominate market penetration in 2025 under CAR scenario IV (62 mpg CAFE standard). Power and Associates to project the technology segmentation necessary to achieve anticipated fuel economy mandates in 2025. CAR researchers used the four fuel economy scenarios developed by. Source: CAR.

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Fuel Economy Economy Auto Industry Standards 199

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

MARCH 24, 2016

Autonomous vehicle driving behavior can have a considerable effect on fuel economy. However, the study also showed that autonomous vehicle (AV) technology following algorithms designed without considering efficiency can degrade fuel economy by up to 3%. —Mersky and Samaras (2016).

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Fuel Economy Economy Fuel Vehicles 150

Green Car Congress

SEPTEMBER 16, 2010

Were a more stringent fuel economy standard to be implemented, 63% said it was likely the cost of vehicles will increase too much. If Obama refused to implement a 60 mpg standard, 13% would view him more favorably, while 25% would view him less favorably. The standards will cover model years 2017 to 2025.

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Fuel Economy MPG Standards Economy 210

Green Car Congress

JUNE 25, 2013

Among the transportation-related elements of US President Barack Obama’s new climate action plan, which he is outlining today in a speech at Georgetown University, is the development of new fuel economy standards for heavy-duty vehicles post-2018. New energy efficiency standards. Earlier post.).

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Obama Cleaner Climate Fuel Economy 249

Green Car Congress

JULY 26, 2017

In March, EPA Administrator Scott Pruitt and Department of Transportation Secretary Elaine Chao announced that EPA intends to reconsider its final determination issued on 12 January 2017 which recommended no change to the greenhouse gas standards for light duty vehicles for model years 2022- 2025. Earlier post.) mpg in MY 2021.

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Standards Fuel Economy Economy Climate Change 150

Green Car Congress

MARCH 3, 2021

—James Archsmith, assistant professor in Agricultural & Resource Economics at UMD and lead author. The data revealed multiple trends that correlate with a decrease in overall fuel economy and efficiency. It is probably operating through other attributes of the car that are associated with fuel economy.

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Purchase Fuel Economy Fuel Cash For Clunkers 220

Green Car Congress

NOVEMBER 3, 2017

The acquired data provides important insights into the fuel spray motion as well as the timing and quantity of soot formed under a wide range of conditions. One challenge of the wide-ranging collaborative effort within the network is the standardization of experimental diagnostics. —Sandia researcher Scott Skeen.

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Fuel Economy Economy Emissions Fuel 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

JULY 8, 2017

The CNG buses had an average fuel economy of 3.89 Using data from two days of CNG bus operation on the route serviced by the BEBs line, the NREL team found that the BEB fuel economy was more than 8 times higher than that of a CNG bus operating exclusively on that route. mpgge, equating to 4.34 Eudy and Jeffers (2017).

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Fuel Economy Economy Fuel Maintenance 210

Green Car Congress

DECEMBER 30, 2013

Prototype low-viscosity ionic liquid-additized engine oil demonstrated a 2% improved fuel economy compared to Mobil 1 5W-30 engine oil (3.93% over the 20W-30 baseline oil) in standard fuel efficiency engine dynamometer tests. Jun Qu, Dinesh G. Bansal, Bo Yu, Jane Y. Howe, Huimin Luo, Sheng Dai, Huaqing Li, Peter J.

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Fuel Economy Oil Economy Engine 369

Green Car Congress

MARCH 26, 2015

The Cummins team not only surpassed all fuel-economy targets, but also achieved criteria emissions lower than the stringent Tier 2/Bin 2 levels. Test cycle fuel economy (mpg). The Highway Fuel Economy Test (HFET) and FTP-75 Test (city) cycles demonstrated fuel economy above 35 mpg (6.72

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Fuel Economy Economy Diesel Light 150

Green Car Congress

MARCH 15, 2017

EPA Administrator Scott Pruitt and Department of Transportation Secretary Elaine Chao announced that EPA intends to reconsider its final determination issued on 12 January 2017 which recommended no change to the greenhouse gas standards for light duty vehicles for model years 2022- 2025. Earlier post.)

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EPA Standards Light Gas 150

Green Car Congress

SEPTEMBER 12, 2012

Laboratory and in-use fuel economy comparison. higher fuel economy than the conventional tractors, resulting in a 12% reduction in fuel costs for the hybrids. higher fuel economy than the conventional tractors, resulting in a 12% reduction in fuel costs for the hybrids. Resources.

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Fuel Economy Economy Diesel Hybrid 262

Green Car Congress

DECEMBER 13, 2013

MY 2012 adjusted fuel economy is 23.6 mpg fuel economy improvement from MY 2011 to MY 2012 is the second largest annual improvement in the last 30 years. l/100 km) fuel economy, which, if achieved, will again represent all-time records. Click to enlarge. l/100 km), which is 1.2 mpg, or 22%. Click to enlarge.

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Fuel Economy 2012 Economy EPA 247

Green Car Congress

MAY 24, 2010

California Air Resources Board Chairman Mary Nichols issued a statement applauding. President Obama’s announcement of the first-ever national policy to increase fuel efficiency and decrease greenhouse gas (GHG) pollution from medium- and heavy-duty trucks for model years 2014-2018. Earlier post.). Earlier post.). Earlier post.).

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Fuel Economy Economy Standards California 225

Green Car Congress

MAY 9, 2012

Researchers from Southwest Research Institute (SwRI) and Eaton have demonstrated the application of downspeeding and supercharging a diesel vehicle, in conjunction with optimizing transmission gear ratios and the shift schedule, to deliver a greater improvement in fuel economy than a downsped and turbocharged configuration.

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Fuel Economy Economy Fuel Eaton 199

Green Car Congress

AUGUST 2, 2009

Changes in the attributes (clockwise from upper left, weight, power, fuel economy and torque) of the Honda Accord over time as an example of fleet trends in the US. In contrast, fuel economy actually increased by 15% during that period. Knittel, 2009. Click to enlarge. Knittel, 2009. Knittel, Christopher R.

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Fuel Economy Downsizing Obama Economy 210

Green Car Congress

DECEMBER 8, 2016

On 30 November, EPA proposed leaving the greenhouse gas (GHG) emissions standards for those model years in place, based on its technical analysis that shows automakers are well positioned to meet the targets, and proposed a 30-day comment period. l/100 km), if achieved exclusively through fuel economy improvements.

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EPA Standards Global Fuel Economy 150

Green Car Congress

DECEMBER 7, 2011

The current vehicle footprint-based Corporate Average Fuel Economy (CAFE) standards create a financial incentive for automakers to increase vehicle size, except under certain limited conditions of consumer preference for vehicle size, according to a study by University of Michigan researchers Kate Whitefoot and Steven Skerlos.

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Standards Fuel Economy Vehicles Economy 240