Green Car Congress

APRIL 23, 2020

developer of Dynamic Skip Fire cylinder deactivation technology ( earlier post ), collaborated on a significant technical demonstration of diesel Dynamic Skip Fire (dDSF) cylinder deactivation. Cummins’ X15 Efficiency Series 6-cylinder diesel engine enhanced with Tula’s diesel Dynamic Skip Fire (dDSF). Cummins Inc.

Diesel 286

Diesel Emissions Exhaust Engine 286

Green Car Congress

JANUARY 10, 2019

FCA US has reached final settlements on civil, environmental and consumer claims with US federal and state agencies as well as private class actions to resolve differences over diesel emissions requirements. Department of Justice (DOJ), the California Air Resources Board (CARB), the State of California, 49 other States and U.S.

Cost Of 312

Cost Of Diesel Emissions San Francisco 312

Green Car Congress

APRIL 20, 2022

Achates Power has released initial in-use NO x measurements from the cleaner, heavy-duty diesel engine it developed in a project funded by the California Air Resources Board (CARB) and several partners. heavy-duty opposed-piston engine demonstrated NO x emissions control far better than other diesel engines we have tested.

EPA 170

EPA Emissions Peterbilt Diesel 170

Green Car Congress

MARCH 31, 2011

Illustration of a three-cylinder configuration of the Pinnacle opposed-piston engine. Startup Pinnacle Engines unveiled plans to commercialize a new, more efficient combustion engine by 2013. The Pinnacle engine is based on a four-stroke, spark-ignited (SI), opposed-piston, sleeve-valve architecture. Click to enlarge.

Fuel Economy 236

Fuel Economy Engine Economy Fuel 236

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 Sources of increased engine thermal efficiency.

Peterbilt 342

Peterbilt Fuel Economy Economy Fuel 342

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. Earlier post.). Earlier post.).

California 230

California Engine Diesel 2017 230

Green Car Congress

MARCH 9, 2020

Power management company Eaton has expanded its portfolio of valvetrain solutions for diesel off-highway vehicles to help OEMs reduce emissions and improve fuel economy. The California Air Resources Board (CARB) is expected to mandate reductions of NO x emissions by approximately 70% by 2024 and up to 90% by 2027.

Eaton 269

Eaton Fuel Economy CO2 Vehicles 269

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

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

Fuel Economy 326

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. Imaging flames at temperatures and pressures found in engines can be difficult because of a phenomenon called “beam steering.”

Fuel Economy 150

Fuel Economy Economy Emissions Fuel 150

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

FEBRUARY 20, 2012

A recent, independent, third-party test of a Thomas Built Buses Saf-T-Liner C2 against an IC Bus™ CE Series found that the SCR technology in the Thomas Bus delivers 7-27% better fuel economy than the EGR technology in the IC bus and, when factoring in the cost of diesel exhaust fluid (DEF), is the more cost-effective choice.

Fuel Economy 210

Fuel Economy Economy Fuel Exhaust 210

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). —Derek Vardon, senior research engineer at NREL and corresponding author. Earlier post.).

Diesel 195

Diesel Fuel Conversion Fuel Economy 195

Green Car Congress

JANUARY 5, 2015

Drive cycle fuel economy for PFI, CDC, and multi-mode RCCI operation. Their paper is published in the International Journal of Engine Research. During RCCI-only operation, fuel usage was found to be between 57 and 69% gasoline. Credit: Curran et al. Click to enlarge. RCCI background. earlier post , earlier post ).

Fuel Economy 150

Fuel Economy Economy Light Fuel 150

Green Car Congress

FEBRUARY 24, 2011

NREL’s Fleet Test and Evaluation Team recently completed a year-long technology evaluation of gasoline hybrid electric (gHEV) FedEx Express delivery trucks compared with conventional diesel vehicles. On a drive cycle representing routes with frequent stops and accelerations, the gHEV trucks exhibited a 20% improvement in fuel economy.

Fuel Economy 186

Fuel Economy Economy Gasoline Diesel 186

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

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

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

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.

Gasoline 240

Gasoline Engine Companies Power 240

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%.

Fuel Economy 247

Fuel Economy 2012 Economy EPA 247

Green Car Congress

FEBRUARY 15, 2018

The US Department of Energy (DOE) has released two studies from the Co-Optimization of Engines & Fuels initiative ( Co-Optima ) ( earlier post ). These new blendstocks, co-optimized with advanced gasoline engines, show potential to improve passenger vehicle fuel economy by 10%. Blendstocks.

Engine 199

Engine Gasoline-Electric Fuel Economy Gasoline 199

Green Car Congress

SEPTEMBER 29, 2010

In a presentation at the US Department of Energy’s 2010 Direction in Engine-Efficiency and Emissions Research Conference in Detroit (DEER), Cisternino described the results of an internal study that used both testbed experimental engine work as well as vehicle tests using an Opel Corsa equipped with a BAS-enhanced 1.3-liter

Fuel Economy 225

Fuel Economy Diesel GM Emissions 225

Green Car Congress

FEBRUARY 7, 2014

BlueDIRECT 2.0L, 4-cylinder direct injection engine operates in stratified lean-burn or homogeneous modes. 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. Click to enlarge. l/100 km (43.6 Source: Vent et al.

Fuel Economy 236

Fuel Economy Mercedes Diesel Fuel 236

Green Car Congress

AUGUST 31, 2018

A new study on ultra-low emission natural gas heavy-duty engines found that the new Cummins-Westport 11.9-liter liter engine achieved California’s lowest smog-forming emissions standard, and maintained those emissions during all types of driving. The results underscore the importance of the near-zero truck engines for cleaning the air.

Emissions 210

Emissions Engine Gas California 210

Green Car Congress

NOVEMBER 21, 2015

The Volkswagen Group of America (VW) submitted a recall plan to the California Air Resources Board (ARB) on Friday, responding to the violations described in ARB’s 18 September 2015 letter to VW concerning illegal defeat devices in 2-liter diesel-powered vehicles, model years 2009-2015. Earlier post.).

California 150

California Diesel Pollution Emissions 150

Green Car Congress

JANUARY 5, 2021

When running on the mainline, both the battery-electric and diesel locomotives will power the train. The battery-electric locomotive is expected to reduce the environmental impact from emissions along the route in an efficient manner, while improving the fuel economy for the entire consist by at least 10%.

California 459

California Batteries Battery Electric 459

Green Car Congress

DECEMBER 9, 2015

Volvo Trucks North America, after concluding truck and engine lab testing, has approved the use of renewable diesel fuel for all of its proprietary Volvo engines, offering environmental and cost-savings benefits to customers. Volvo is the first OEM to endorse the use of advanced drop-in hydrocarbon renewable diesel fuel.

Volvo 150

Volvo Renewable Diesel Fuel 150

Green Car Congress

NOVEMBER 13, 2018

Eaton will supply a TVS (Twin Vortices Series) air pump to manage airflow in the demonstration of the Achates Power two-stroke opposed-piston engine (OP Engine) at the upcoming Internal Combustion Engine Fall Technical Conference in San Diego. —Mihai Dorobantu. Earlier post.). —Mihai Dorobantu.

Eaton 191

Eaton Engine San Diego Fuel Economy 191

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

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. V8 Turbo Diesel to be used in the Nissan Titan pick-up truck ( earlier post ), the ISV5.0

Diesel 247

Diesel Light Commercial Vehicles 247

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

MARCH 11, 2012

While engine size has been decreasing slightly in recent years, overall engine horsepower has continued to increase, with the notable exception of MY 2009. Nearly all engines now have multiple valves (approximately 85%) and variable valve timing (projected to approach 95% in MY 2011). and from 2.6% to 4.9%, respectively).

Fuel Economy 236

Fuel Economy 2011 Economy EPA 236

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

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. Click to enlarge. —Sun et al.

Emissions 186

Emissions Engine Fuel Economy Fuel 186

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

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

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