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.

Fuel Economy 326

Fuel Economy Economy Fuel MPH 326

Green Car Congress

APRIL 28, 2015

In a policy update, the International Council on Clean Transportation (ICCT) reports that Japan’s Ministry of Land, Infrastructure, Transport and Tourism (MLIT) and Ministry of Economy, Trade, and Industry (METI) have finalized new proposed fuel economy standards for light- and medium-duty commercial vehicles with gross vehicle weights less than 3.5

Fuel Economy 150

Fuel Economy Japan Economy Light 150

Green Car Congress

AUGUST 23, 2013

Audi of America introduced four new TDI clean diesel models for the US market this year—the Audi A8, A7, A6, Q5—along with an updated Q7 TDI, all equipped with a second-generation 3.0L V6 TDI diesel engine. ” One of our primary goals and objectives is to level the playing field for clean diesel vehicles.

Diesel 366

Diesel Audi Sale Fuel Economy 366

Green Car Congress

AUGUST 30, 2010

From left to right: EV, PHEV, gasoline/diesel, gasoline/diesel. The US Department of Transportation (DOT) and the US Environmental Protection Agency (EPA) are jointly proposing changes to the fuel economy labels consumers see on the window of new vehicles in dealer showrooms. Color is integral to the new schemes.

Fuel Economy 297

Fuel Economy EPA Economy Fuel 297

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

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. —Isenstadt and German (2017). Background.

Diesel 186

Diesel Light Fuel Economy 2017 186

Green Car Congress

JULY 8, 2017

miles per diesel gallon equivalent (mpdge). The CNG buses had an average fuel economy of 3.89 However, because Foothill Transit operates its BEB and CNG bus fleets differently, the efficiency results presented are not an apples-to-apples comparison. An apples-to-apples comparison of fuel cost—i.e.,

Fuel Economy 210

Fuel Economy Economy Fuel Maintenance 210

Green Car Congress

JUNE 12, 2010

Fuel economy was similar between the gHEVs and diesel vehicles, except for the highest kinetic intensity drive cycle where the hybrid exhibited ~20% higher fuel economy. NREL used six similar trucks for the evaluation project: three Azure Dynamics Balance hybrids, and three diesels (Freightliner MT-45).

Fuel Economy 199

Fuel Economy Economy Gasoline Diesel 199

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.

Fuel Economy 199

Fuel Economy Economy Fuel Eaton 199

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. Among their findings:??.

Gasoline 247

Gasoline Diesel Vehicles Fuel Economy 247

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.

Fuel Economy 247

Fuel Economy 2012 Economy EPA 247

Green Car Congress

MARCH 31, 2011

Pinnacle says the engine achieves 30-50% better fuel economy in various drive cycle comparisons without the large cost penalty that can be associated with significant fuel economy improvement. The Pinnacle engine is based on a four-stroke, spark-ignited (SI), opposed-piston, sleeve-valve architecture.

Fuel Economy 236

Fuel Economy Engine Economy Fuel 236

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

FEBRUARY 7, 2014

Mercedes-Benz announced that seven new versions of the Mercedes-Benz A-, B- and CLA-Class now offer enhanced fuel savings compared with their respective predecessors. Additionally, the A 200 CDI 4MATIC and A 220 CDI 4MATIC represent the first all-wheel-drive diesel models forming part of the new generation of compact cars from Mercedes-Benz.

Fuel Economy 236

Fuel Economy Mercedes Diesel Fuel 236

Green Car Congress

APRIL 22, 2014

EU-funded scientists developed a novel 320 kW (429 hp) diesel engine for light helicopters as an alternative to conventional turboshaft engines. The technology demonstrated substantial reductions in fuel consumption and emissions. The engine weight is the crux of the project. —DELILAH final report.

Light 239

Light Diesel Engine Fuel Economy 239

Green Car Congress

JULY 9, 2015

Though there are some exceptions to these positive results for some of the diesel versions of vehicles from a total-cost-of-ownership perspective, the overall direction of the results supports the idea that diesel vehicles are competitive within the U.S. Average diesel take rates. Belzowski 2015. Click to enlarge. Model year.

Cost Of 150

Cost Of Gasoline Diesel Fuel Economy 150

Green Car Congress

OCTOBER 28, 2010

Porsche is consistently targeting improving fuel economy with each model change. Depending on the model, the savings achieved by all currently available model series in comparison with the corresponding predecessors lie in the double-digit percentage range while simultaneously offering significantly increased performance.

Fuel Economy 236

Fuel Economy Cayenne Porsche Economy 236

Green Car Congress

JUNE 15, 2021

We use vehicles modeled in Autonomie to estimate vehicle costs and fuel economy along with fuel price projections from the Energy Information Administration (EIA), and focus on developing internally consistent estimates for other relevant cost parameters. Per-mile maintenance costs by powertrain. Burnham et al.

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Maintenance Cost Of Chad Plug-in 418

Green Car Congress

SEPTEMBER 26, 2013

The study found that TCO for electric and diesel medium-duty urban delivery trucks were similar. Researchers at Georgia Tech have compared medium-duty (MD) electric and diesel urban delivery trucks in terms of life-cycle energy consumption, greenhouse gas (GHG) emissions, and total cost of ownership (TCO). Credit: ACS, Lee et al.

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Georgia Diesel Gas-Electric Electric 268

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. Earlier post.).

Fuel Economy 297

Fuel Economy Fuel Economy Engine 297

Green Car Congress

FEBRUARY 15, 2015

presents a parametric analysis of factors that can influence advanced fuel and technology deployments in US Class 7–8 trucks through 2050. The analysis focused on the competition between traditional diesel trucks, natural gas vehicles (NGVs), and ultra-efficient powertrains. Diesel Engines Fuel Efficiency Heavy-duty Natural Gas'

Fuel Economy 150

Fuel Economy China Fuel Europe 150

Green Car Congress

FEBRUARY 26, 2021

Hydrogen operation with the current WFS HPDI fuel system outperforms natural gas in terms of thermal efficiency, mainly due to lower equivalence ratio for H 2 at given fueling energy level, higher kinetic energy for H 2 jets as well as higher tolerance of H 2 combustion to fuel rich operation. Source: Westport/AVL.

Fuel 221

Fuel Hydrogen Exhaust Emissions 221

Green Car Congress

MARCH 20, 2012

A new report highlights the results of research work carried out by Ricardo and TRL on behalf of the UK Department for Transport, exploring the means by which improvements in diesel fuel efficiency could be realized within the rail network of Great Britain. Potential fuel economy benefit over baseline is 30% on the freight duty cycle.

Diesel 218

Diesel Gas Fuel Fuel Economy 218

Green Car Congress

AUGUST 31, 2009

in May, while diesel fuel declined 7%, according to the latest figures from the California Board of Equalization (BOE). A month-to-month comparison shows that gasoline consumption rose 3.5% May 2009 diesel fuel sold for use on California roads totaled 209 million gallons of diesel. per gallon.

Gasoline 199

Gasoline California Diesel 2009 199

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.

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Diesel Emissions Fuel 2011 210

Green Car Congress

JULY 16, 2013

Volkswagen has introduced a new version of the Golf GTD (“Gran Turismo Diesel”) in Europe, and plans to bring it to the US market, reportedly likely for the 2016 model year. diesel delivering 184 horsepower (137 kW), 280 lb-ft (380 N·m) of torque, CO 2 emissions of 109 g/km, and a NEDC combined fuel economy figure of 56 mpg US (4.2

Diesel 304

Diesel Exhaust MPH MPG 304

Green Car Congress

MARCH 16, 2009

liter diesel to its Zafira van line-up as its first ecoFLEX model. ecoFlex Zafira has a combined cycle fuel consumption of 53.3 By comparison, the 1.9 mpg US) fuel economy rating. A different final drive ratio also raises the gearing, improving both fuel economy and offering a more relaxed cruising gait.

Diesel 150

Diesel MPG Fuel Economy GM 150

Green Car Congress

NOVEMBER 7, 2011

Cummins is one year into a four year program (ATLAS, Advanced Technology Light Automotive Systems) to develop, in partnership with the US Department of Energy (DOE), a new light-duty diesel truck engine that will meet Tier 2 Bin 2 (SULEV) emission requirements while achieving at least a 40% fuel economy improvement (26.1

Light 199

Light Diesel MPG Nissan 199

Green Car Congress

OCTOBER 29, 2013

The fuel economy rating outperforms some competitors’ diesels and hybrids on the highway driving cycle. As an example, the 2014 Honda Insight achieves 44 mpg highway, while the 2014 Volkswagen Golf diesel with a manual transmission delivers 42 mpg highway. Comparison from fueleconomy.gov. l/100 km) highway.

MPG 199

MPG EPA Fuel Economy Honda Insight 199

Green Car Congress

APRIL 14, 2020

This increase was largely driven by an increase in emissions from fossil fuel combustion, which was a result of multiple factors, including more electricity use greater due to greater heating and cooling needs due to a colder winter and hotter summer in 2018 in comparison to 2017. Source: EPA. >.

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2018 2017 EPA 2005 243

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.). Earlier post.). —Kokjohn and Reitz.

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Light Engine Wisconsin Fuel Economy 207

Green Car Congress

MAY 27, 2015

On the other hand, none of natural gas pathways, CNG, LNG, and F-T liquids, achieve any emission reductions per unit of freight-distance moved for Class 8 trucks compared to conventional diesel. More specifically, we evaluate the relative comparison of different ways of using natural gas for different types of MHDVs. —Tong et al.

Gas 150

Gas Diesel Gas-Electric Emissions 150

Green Car Congress

APRIL 19, 2011

TDI Clean Diesel; and the 2.0L Volkswagen’s DSG 6-speed dual-clutch transmission will be offered on the TDI Clean Diesel and 2.0L TDI Clean Diesel engine produces 140 hp (104 kW) and 236 lb-ft (320 N·m) of torque. Fuel economy values are also improved up to 10% over prior 2.5L The four cylinder 2.0L

Gasoline 218

Gasoline Diesel Engine MPG 218

Green Car Congress

SEPTEMBER 24, 2014

However, they also noted, high PTW efficiencies and the moderate fuel economies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. The study investigated the the WTW energy and emissions from the use of natural gas in CNGVs with a range of CNGV fuel economy and natural gas compressor efficiency.

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Gas-Electric Gas Fuel Economy PHEV 345

Green Car Congress

APRIL 2, 2010

Comparison of 2015-2020 new vehicle potential fuel-saving technologies for seven vehicle types: tractor trailer (TT), Class 3-6 box (box), Class 3-6 bucket (bucket), Class 8 refuse (refuse), transit bus (bus), motor coach (coach), and Class 2b pickups and vans (2b). Source: TIAX. Click to enlarge.

Fuel Economy 199

Fuel Economy Economy Fuel Vehicles 199

Green Car Congress

JANUARY 15, 2012

The particle number count under those conditions increased by more than an order of magnitude in comparison to DPF-out particle concentrations. Diesel particulate filters (DPF) and urea-based selective catalytic reduction (SCR) exhaust after-treatment systems thus have emerged as feasible strategies to meet the 2010 USEPA regulations.

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Exhaust Diesel West Virginia 2007 218

Green Car Congress

OCTOBER 22, 2013

Summary of comparison of NO x emissions and fuel consumption of hybrid (D7E) and conventional (D6) dozers. The researchers used the activity measurements to develop duty cycles that were representative and also repeatable in terms of getting good comparisons between the different equipment. —Kent Johnson.

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Emissions Hybrid Fuel Diesel 231