Green Car Congress

JANUARY 5, 2015

Drive cycle fuel economy for PFI, CDC, and multi-mode RCCI operation. Among their findings were that multi-mode RCCI has the potential to offer greater than 15% fuel economy improvement over a 2009 gasoline PFI baseline over many light-duty driving cycles, despite the lack of complete drive cycle coverage for RCCI mode.

Fuel Economy 150

Fuel Economy Economy Light Fuel 150

Green Car Congress

DECEMBER 17, 2019

A novel oxygenate molecule that can be produced from biomass shows promise for use as a blend for diesel fuel, according to researchers at the National Renewable Energy Laboratory (NREL). The molecule, 4-butoxyheptane, contains oxygen while conventional petroleum-derived diesel fuel comprises hydrocarbons.

Diesel 195

Diesel Fuel Conversion Fuel Economy 195

Green Car Congress

APRIL 23, 2019

A new study carried out by University College Dublin (UCD) academics has found that under typical Irish commuting conditions, the Toyota Prius IV (fourth-generation) hybrid ( earlier post ) drives in zero emissions mode (ZEV) for significantly more than half (62%) of the time and more than 40% (40.4%) of the distance covered.

Prius 191

Prius Ireland Universal Emissions 191

Green Car Congress

JUNE 28, 2013

TCO for selected gas and diesel vehicles over a 3 year timeframe. Diesel vehicles generally saved owners between $2,000 to $6,000 in total ownership costs during a three to five year period when compared to similar gasoline vehicles, according to data compiled by the University of Michigan Transportation Research Institute (UMTRI).

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Cost Of Diesel Gasoline Vehicles 262

Green Car Congress

DECEMBER 23, 2009

UPS van fuel economy comparison. UPS’ first-generation diesel hybrid delivery vans improved the on-road fuel economy by 28.9% Both the Freightliner hybrid model and the conventional model use a Mercedes-Benz MBE 904 four-cylinder diesel engine. greater than the diesel van group’s 10.2

Fuel Economy 210

Fuel Economy Economy Eaton Hybrid 210

Green Car Congress

NOVEMBER 9, 2017

PM emissions from current vehicles in Beijing could be reduced by approximately 19% by simply blending 20% synthetic diesel with currently available diesel, according to a new study by Tsinghua University, the Desert Research Institute in Nevada and Greyrock Energy, a developer of gas-to-liquids technology.

Diesel 150

Diesel Emissions Gas Sacramento 150

Green Car Congress

JULY 19, 2013

Drivers of diesel vehicles can save thousands of dollars in total ownership costs compared to similar gasoline vehicles, according to a University of Michigan Transportation Research Institute (UMTRI) study. —UMTRI researcher Bruce Belzowski. Belzowski and UMTRI colleague Paul E.

Gasoline 247

Gasoline Diesel Vehicles Fuel Economy 247

Green Car Congress

SEPTEMBER 9, 2014

Ricardo will display the first functional integration prototype of the Advanced Diesel Electric Powertrain (ADEPT) collaborative research project ( earlier post ) in public for the first time this week at the Low Carbon Vehicle Event (LCV 2014) in the UK. 48V Diesel Fuel Efficiency' ADEPT schematic. Click to enlarge.

Diesel 231

Diesel Downsizing Lead Acid Gasoline-Electric 231

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.

Fuel Economy 243

Fuel Economy 2019 Diesel Engine 243

Green Car Congress

MAY 26, 2015

The letter of intent with the Politecnico and the Regione Piemonte reinforces the research collaboration with the university through the growth of projects carried out by Politecnico and GMPT-E Turin as well as a project for the expansion of the area of GMPT-E in the campus of Politecnico named “Cittadella Politecnica”.

GM 150

GM Europe Diesel Engine 150

Green Car Congress

MARCH 4, 2010

The chart shows heat release from a standard diesel combustion cycle (solid black line), overlaid with the heat release from a TSCi cycle (dashed blue line). Researchers at Syracuse University are working on a method to prepare, inject and combust supercritical diesel fuel. Source: Transonic. Click to enlarge.

Fuel Economy 297

Fuel Economy Fuel Economy Engine 297

Green Car Congress

JUNE 15, 2021

Researchers at Argonne National Laboratory, with colleagues from Lawrence Berkeley, Oak Ridge, and National Renewable Energy labs, and the University of Tennessee, have published a comprehensive analysis of the total cost of ownership (TCO) for 12 sizes of vehicles ranging from compact sedans up to Class 8 tractors with sleeper cabs.

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Maintenance Cost Of Chad Plug-in 418

Green Car Congress

SEPTEMBER 13, 2016

The three-year ADEPT (advanced diesel-electric powertrain) project ( earlier post ) in the UK set the target of developing and validating a range of advanced mild hybrid technologies with 48V “intelligent electrification” utilizing an advanced lead carbon battery.

Diesel 150

Diesel Hybrid Fuel Lead Acid 150

Green Car Congress

JANUARY 28, 2011

A new Carnegie Mellon University study released at the Washington Auto Show finds that for passenger cars, aadvanced vehicles with higher fuel economy—i.e, turbocharged direct injection diesels or hybrids—retain more value than a paired conventional vehicle—i.e.,

Gasoline 231

Gasoline Diesel Price Hybrid 231

Green Car Congress

AUGUST 3, 2009

The dual-fuel PCCI strategy showed thermal efficiency of 53%. Emissions under the dual-fuel concept, at 11 bar IMEP. The University of Wisconsin concept proposes the use of dual fuel tanks, with port fuel injection of gasoline and direct injection of diesel, with the in-cylinder mixing of the fuels.

Wisconsin 225

Wisconsin Gasoline Diesel Universal 225

Green Car Congress

MAY 5, 2009

Calculated diesel equivalent fuel economy for each phase was: 21.35 Fuel economy testing was conducted with the air conditioning system turned off. Air conditioned operations are expected to reduce fuel economy results by approximately 30%. mpg on the central business district phase, 17.55

MPG 239

MPG Diesel Fuel Economy Pennsylvania 239

Green Car Congress

JULY 17, 2020

The Research Foundation for The SUNY Stony Brook University. University of Delaware. University of Maryland. Marquette University. AOI 04: Platinum Group Metals (PGM) Content Reduction to Enable Cost-Effective Aftertreatment for Gasoline and Diesel Engines. Washington State University. Purdue University.

Lithium Ion 236

Lithium Ion Vehicles Li-ion Universal 236

Green Car Congress

AUGUST 1, 2011

Comparing fuel consumption with diesel, 50D/50E and 50D/50E + 7% DME. In a study published in the ACS journal Energy & Fuels , M. Emulsification of diesel with ethanol is one of the possible approaches to improve fuel economy and reduce emissions of pollutants from diesel engines. Click to enlarge.

Diesel 210

Diesel Emissions Fuel 2011 210

Green Car Congress

AUGUST 14, 2020

Recent US Supreme Court precedent has opened the door for states to enact laws requiring all new cars sold in the state to be electric as of a certain date, according to a paper by the nonprofit Coltura published in the University of Michigan Journal of Environmental and Administrative Law. Its vision is a gasoline-free US by 2040 or sooner.

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All-Electric Legal Vehicles London 247

Green Car Congress

FEBRUARY 9, 2011

million to help 17 New York State companies develop and commercialize innovative new transportation technologies intended to reduce greenhouse gas emissions, decrease reliance on fossil fuels, and create jobs. Salt Point) is working on a diesel additive that would increase fuel efficiency by reducing engine friction.

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Diesel Transportation New York Pollution 199

Green Car Congress

JUNE 2, 2014

In-use testing of three light duty diesel vehicles—certified to US-EPA Tier2-Bin5 and California LEV-II ULEV emissions limits— found a wide variation in real world emissions performance relative to the regulatory limits. diesels and one 3.0L diesel) over pre-defined test routes exhibiting diverse driving conditions.

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Diesel Emissions Light Los Angeles 230

Green Car Congress

DECEMBER 12, 2018

The US Department of Energy (DOE) has awarded a three-year, $1 million grant to a team of researchers led by a UMass Lowell mechanical engineering professor that is working to develop renewable fuel additives from sawdust and other wood byproducts. —Hunter Mack, team leader.

Renewable 207

Renewable Fuel Florida Fuel Economy 207

Green Car Congress

OCTOBER 31, 2009

An EU-funded research project is seeking to develop new technologies that will enable the sustainable production of diesel miscible biofuels (DMB) from cellulosic biomass wastes in Europe and Latin America. Ethyl levulinate (EL) is a novel diesel miscible biofuel (DMB) produced by esterifying ethanol with levulinic acid.

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Diesel Production Greece Oil 218

Green Car Congress

JUNE 29, 2013

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% Earlier post.). —Kokjohn and Reitz. Sage L Kokjohn and Rolf D.

Light 207

Light Engine Wisconsin Fuel Economy 207

Green Car Congress

JANUARY 15, 2012

The researchers also found that some of the high temperature modes resulted in diesel particulate filter (DPF)-out accumulation mode (between 50 and 200 nm) particle concentrations an order of magnitude greater than typical background PM concentrations. Diesel engines for use in the US are certified on the Federal Test Procedure (FTP) cycle.

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Exhaust Diesel West Virginia 2007 218

Green Car Congress

NOVEMBER 24, 2015

This engine will also be more efficient than conventional diesel engines, but without the additional cost incurred by diesel fuel injection and complex exhaust aftertreatment. Although Achates’s work to date has been with diesel, its fundamental approach is suited for advanced combustion regimes using other fuels as well.

Gasoline 150

Gasoline Engine Power Powered 150

Green Car Congress

MAY 27, 2015

A study by Carnegie Mellon University researchers comparing life cycle greenhouse gas (GHG) emissions from different natural gas pathways for medium and heavy-duty vehicles (MHDVs) found that the GHG reduction potentials of the pathways vary sharply between non-Class 8 MHDVs (e.g., refuse trucks and tractor-trailers).

Gas 150

Gas Diesel Gas-Electric Emissions 150

Green Car Congress

APRIL 5, 2012

Source: “Fuel Economy Focus: Perspectives on 2020 Industry Implications”. The report, “Fuel Economy Focus: Perspectives on 2020 Industry Implications,” evaluates the impact that meeting the proposed fuel economy/GHG standards would have on the car industry in the year 2020. Click to enlarge. Earlier post.).

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Detroit Standards Fuel Economy Economy 225

Green Car Congress

JUNE 1, 2017

Traffic contributes more to NO x emissions in Europe than previously thought, according to a new study by a team at the University of Innsbruck. The majority of the emissions is caused by diesel cars. An open-access paper on their work appears in Scientific Reports. TWC treatment can lead to a 10 fold reduction of NO.

Europe 150

Europe Diesel Emissions Pollution 150

Green Car Congress

AUGUST 31, 2018

Most heavy-duty vehicles on roads today are diesel-powered and represent one of the largest sources of NO x emissions and fuel consumption in North America. Particle number, ammonia emissions, and methane emissions were higher than current 2010 certified diesel engines on similar drive cycles. Source: UCR.

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Emissions Engine Gas California 210

Green Car Congress

JULY 3, 2017

Road freight transport relies primarily on diesel, which accounts for more than 80% of its oil use. Road freight vehicles alone accounted for about 80% of the global net increase in diesel demand since 2000, and make up about half of global diesel demand today. The trucking sector can improve logistics and systems operations.

Oil 150

Oil Transportation Alternative Fuels Fuel Economy 150

Green Car Congress

FEBRUARY 15, 2018

The first study, Fuel Blendstocks with the Potential to Optimize Future Gasoline Engine Performance , identifies eight representative high-octane blendstocks across five chemical groups that could be blended into gasoline for better performance. The advanced fuel components can be derived from domestic biomass resources. Blendstocks.

Engine 199

Engine Gasoline-Electric Fuel Economy Gasoline 199

Green Car Congress

APRIL 23, 2012

SAE’s 2012 High Efficiency IC Engine Symposium in Detroit—the second as an immediate precursor to the SAE World Congress—opened on Sunday with a consideration of several alternative engine designs: opposed piston 2-stroke (Achates Power); variable compression ratio (MCE-5); split cycle (Scuderi); and advanced rotary (Liquid Piston).

Engine 294

Engine Design Congress Downsizing 294

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. A new study by a team at the University of Toronto has made a preliminary assessment of the climate trade-off (i.e.,

Climate 150

Climate Engine Carbon Fuel Economy 150

Green Car Congress

APRIL 17, 2018

Researchers at Jilin University in China report in a papaer in the journal Fuel that coolant temperature in a gasoline direct-injection (GDI) engine under idle has a critical effect on particulate number (PN) emissions and that optimizing other operating parameters will further reduce PN emissions.

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Emissions Engine Fuel Economy Fuel 186

Green Car Congress

JUNE 19, 2014

Hydraulic pumps/motors and an accumulator (power storage unit) are added to gasoline, diesel, propane or CNG engines to store braking energy and use the captured energy to accelerate the vehicle, significantly saving fuel and brakes and cutting emissions.

Hybrid 275

Hybrid Emissions West Virginia Colorado 275

Green Car Congress

MARCH 9, 2016

Rice University researchers have determined a more effective way to use natural gas to reduce climate-warming emissions would be in the replacement of existing coal-fired power plants and fuel-oil furnaces rather than burning it in cars and buses. Graphic by Tanyia Johnson/Rice University. Click to enlarge.

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Gas-Electric Gas Transportation Coal 150