Green Car Congress

JANUARY 20, 2020

A team from the Beijing Institute of Technology and Beiqi Foton Motor are proposing a performance optimization strategy for the Atkinson cycle gasoline engine, which is playing a key role in the development of hybrid electric vehicles due to its greater fuel economy than a conventional Otto cycle engine. —Niu et al.

Engine 150

Engine Hybrid Fuel Economy Economy 150

Green Car Congress

JULY 4, 2018

Researchers at ORNL, in partnership with FCA US and Nemak USA, have developed a new suite of aluminum-based alloys that could give automakers a boost in achieving ambitious fuel economy goals. Current alloys inhibit engine efficiency because they soften at the peak temperatures present in highly efficient advanced engines.

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Fuel Economy Economy Fuel USA 186

Green Car Congress

FEBRUARY 25, 2014

Southwest Research Institute (SwRI) has built a demonstrator vehicle, based on a 2012 Buick Regal GS, incorporating the latest D-EGR (dedicated EGR) technology ( earlier post ), an outgrowth of SwRI’s HEDGE (High Efficiency Dilute Gasoline Engine) consortium projects ( earlier post ). The compression ratio of the engine was increased to 11.7:1

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Fuel Economy Engine Fuel Economy 277

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 1, 2013

For the target market (the Asian scooter market), the low NO x capability of the Pinnacle engine provides a significant cost benefit to manufacturers. Further, Pinnacle noted, recently developed hardware designed for additional lean limit extension is under test. When the entire vehicle costs around $700, that’s a significant difference.

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Fuel Economy Economy Engine Fuel 231

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.”

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Fuel Economy Economy Emissions Fuel 150

Green Car Congress

JULY 4, 2018

Researchers at ORNL, in partnership with FCA US and Nemak USA, have developed a new suite of aluminum-based alloys that could give automakers a boost in achieving ambitious fuel economy goals. Current alloys inhibit engine efficiency because they soften at the peak temperatures present in highly efficient advanced engines.

Fuel Economy 150

Fuel Economy Economy Fuel USA 150

Green Car Congress

MARCH 7, 2013

Within his talk about the need for a US energy policy at the IHS CERAWeek 2013 energy conference in Houston, GM Chairman and CEO Dan Akerson outlined some highlights of the company’s fuel economy plan through the 2016 model year. A good rule of thumb is that a 10% reduction in curb weight will reduce fuel consumption by about 6.5%.

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Fuel Economy Economy GM Gasoline 210

Green Car Congress

MAY 9, 2012

Christopher Thomas, BorgWarner VP, Advanced Engineering, Engine Group and VP, Advanced Engineering, Drivetrain Group presented the basic concepts of VEMB and current BorgWarner test results at the recent SAE 2012 High Efficiency IC Engine Symposium. improvement in fuel economy on an E-class vehicle (e.g.,

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Fuel Economy Downsizing Economy Engine 218

Green Car Congress

JUNE 30, 2016

Electric vehicles (EVs) will need to increase their combined market share to 16% by 2020 for markets to achieve the aggressive fuel economy standards set by regulators, according to new research by the World Energy Council, the UN-accredited global energy body representing the entire energy spectrum. In the EU, the EV gap is 1.4

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Fuel Economy 2020 Economy Standards 247

Green Car Congress

APRIL 26, 2019

liter engine. (At At WCX SAE World Congress Experience this year in Detroit, Nissan presented a paper on the development of and technologies applied in the new 2.5L engine for the Altima, including the mirror bore coating.). The team in Decherd assembles an engine every 19 seconds and is capable of building about 1.4

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Nissan Engine 2019 Fuel Economy 246

Green Car Congress

SEPTEMBER 5, 2011

The Volvo Car Corporation is introducing a new, downsized engine range consisting solely of four-cylinder gasoline and diesel engines. The upcoming four-cylinder VEA (Volvo Environmental Architecture) engine range includes common rail diesels and direct injected gasoline engines. Earlier post.).

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Downsizing Fuel Economy Volvo Economy 268

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. The challenge was making those significant advancements while ensuring that the engine we produced would be commercially viable. Test cycle fuel economy (mpg). mpg (12.45

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Fuel Economy Economy Diesel Light 150

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

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

JULY 23, 2014

Enerpulse Technologies said that it has further identified the underlying mechanism by which its its pulsed energy ignition technology improves fuel economy, reduces emission and delivers higher torque in spark ignited (SI) internal combustion (IC) engines. —Wes Helgeson, senior research engineer. Earlier post.)

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Fuel Economy Plug Economy Energy 210

Green Car Congress

APRIL 25, 2016

In a paper presented at the 2016 SAE World Congress, Tula Technology, developer of Dynamic Skip Fire (DSF) cylinder deactivation technology, reported significant fuel economy gains of up to 18% over a conventional GM 6.2-liter Meaning, DSF reduces fuel consumption by 14-18% over V8. Earlier post.) Earlier post.).

Fuel Economy 150

Fuel Economy Economy GM GMC 150

Green Car Congress

OCTOBER 16, 2012

SIDI engine. Opel revealed more details about its new mid-size gasoline engine family at the Aachen Colloquium in Germany. liter, four-cylinder, SIDI (spark ignition direct injection) ECOTEC Turbo engines, which begin Opel’s renewal of its powertrain portfolio, deliver improved fuel consumption, performance and refinement.

Gasoline 350

Gasoline Engine Fuel Power 350

Green Car Congress

JUNE 17, 2016

Dana Holding Corporation will present its VariGlide planetary variator for beltless continuously variable transmissions (CVTs) at the International VDI Conference, to be held 21-22 June 2016, in Friedrichshafen, Germany. In 2012, Dana formed a strategic relationship with Fallbrook Technologies Inc.

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International Fuel Economy Economy 2016 150

Green Car Congress

MAY 12, 2012

The Directorate for Engineering at the National Science Foundation (NSF) has established a partnership with the Vehicle Technologies Program (VTP) of the US Department of Energy (DOE) to address critical fundamental and applied research challenges associated with advanced combustion engine technologies. The potential is significant.

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Fuel Economy Engine Economy 2014 240

Green Car Congress

MARCH 26, 2018

liter Dynamic-Force direct-injection inline four-cylinder engine (M20A-FKS) ( earlier post ) with gains in power, fuel efficiency, and cleaner emissions. Physically, the engine is smaller and lighter than its 1.8-liter Together, the valve timing systems enhance power output and fuel economy, and cut harmful emissions.

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2019 Engine Power Powered 261

Green Car Congress

JUNE 21, 2019

At the 2019 IAA Frankfurt in September, Tenneco’sPowertrain division will present its award-winning PRiME 3D simulation software which has been shown to cut development time for engine cylinder components by up to 70%. PRiME 3D enables the optimization of piston and piston ring performance with an accuracy level close to 95%.

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Engine Gas Emissions Fuel Economy 207

Green Car Congress

MARCH 7, 2018

The project will build and install diesel-fueled two-stroke compression-ignition Achates Power Opposed-Piston Engines into Class 8 demonstration trucks that will be road-road ready in 2019 and operate in fleet service in California in 2020. This program will demonstrate the first diesel engine to comply with the state standard.

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California Engine Diesel 2017 230

Green Car Congress

AUGUST 7, 2013

BMW i presented a prototype of its second production vehicle, the i8 ( earlier post ), at a driving event at the BMW Group’s Miramas test track in France. Calculated using the EU test cycle for plug-in hybrid vehicles, the average fuel efficiency of the BMW i8 at model launch will be less than 2.5 Rear-mounted 3-cylinder engine.

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BMW Plug-in Engine Plug 281

Green Car Congress

SEPTEMBER 2, 2016

Daimler Trucks North America (DTNA) has presented its new heavy-duty truck flagship: the new Freightliner Cascadia. When developing the new Cascadia, the engineers set a priority goal of achieving significant fuel savings. The DD15 and DD13 engines are optimally matched to the updated EGR system to deliver enhanced performance.

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Detroit Fuel Fuel Economy North America 150

Green Car Congress

APRIL 14, 2011

GM is exploring the use of an ultracapacitor-based Active Energy Recovery Buffer (AERB) scheme as a low-cost means to improve fuel economy in conventional vehicles; results of a simulation study presented at SAE 2011 World Congress showed improvement of up to 1.3% liter engine and a six-speed transmission.

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Fuel Economy Low Cost Economy GM 240

Green Car Congress

FEBRUARY 17, 2011

In response to federal policies to boost gas mileage, manufacturers have changed vehicle weights, improved tire-rolling resistance and added aerodynamic features to push fuel-economy rates past government-mandated thresholds. mpg and 22.4 mpg) that lead to large changes in tax liability or the amount of a subsidy. —Joel Slemrod.

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Fuel Economy Economy Fuel MPG 186

Green Car Congress

APRIL 20, 2012

Five Mazda engineers are receiving the 2011 Japan Society of Mechanical Engineers Medal for developing Mazda’s 1.3-liter liter gasoline engine with “Skyactiv” technology that allows an exceptionally high 14.0:1 1 compression ratio and fuel efficiency of 30 km/L (70.6 Integrity Exports. mph US, 3.33

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Mazda Japan Engine 2011 236

Green Car Congress

APRIL 22, 2013

Use of a variable compression ratio (VCR) could be one technology approach to reducing fuel consumption in highly boosted (e.g., downsized, turbocharged) gasoline engine, as operating an engine with higher compression ratios at low load can increase fuel economy compared to operating an engine with fixed compression ratio.

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Fuel Economy Economy Fuel Downsizing 218

Green Car Congress

APRIL 17, 2013

This, when combined with secondary mass savings and other design changes, could boost fuel economy by around 18%. The cost increase was about $1 per kilogram of weight saved, which consumers will recoup in fuel savings in less than two years of operating the more efficient vehicle.

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Fuel Economy Economy Fuel EPA 257

Green Car Congress

FEBRUARY 24, 2011

On a drive cycle representing routes with frequent stops and accelerations, the gHEV trucks exhibited a 20% improvement in fuel economy. On drive cycles representing routes with fewer stops and accelerations, the gHEV trucks demonstrated similar fuel economy to the diesels. gasoline engine and Azure Dynamics, Inc.

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Fuel Economy Economy Gasoline Diesel 186

Green Car Congress

FEBRUARY 26, 2018

liter engine with 40% thermal efficiency (41% in hybrid applications); a new 2.0-liter liter hybrid system; and new 4WD systems—one for gasoline-engined cars, one for hybrids—based on the Toyota New Global Architecture (TNGA). liter Dynamic Force Engine, a New 2.0-liter As a result, the newly developed 2.0-liter

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Toyota Engine Hybrid Gasoline-Electric 264

Green Car Congress

AUGUST 17, 2009

Using a micro-hybrid system featuring carbon/carbon ultracapacitor units as energy storage can result in significant increases in fuel economy over a baseline conventional vehicle, according to a study by Dr. Andrew Burke at UC Davis. The simulations used a “sawtooth” control strategy to optimize the efficiency of the engine.

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Fuel Economy Davis Economy Hybrid 236

Green Car Congress

APRIL 6, 2017

Improving battery power to such as level would further enable hybridization to near-HEV levels as well as engine downsizing, thereby enabling fuel economy improvements beyond the current 10-15% MHEV limit. Current MHEV systems typically consist of an engine coupled to a belt-integrated starter generator (BISG).

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Battery Powered Fuel Economy Power Powered 284

Green Car Congress

NOVEMBER 25, 2013

F w = fuel consumption due to mass-induced loads; F x = fuel cons. due to aerodynamic resistance and accessory power loads; F f = fuel cons. due to mechanical losses in the engine; F l = fuel cons. due to mechanical losses outside of the engine; F load = fuel cons. due to mechanical losses.

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Insight Fuel Ford Fuel Economy 225

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).

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Engine Design Congress Downsizing 294

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 collected and analyzed data for in-use fuel economy and fuel costs, maintenance costs, total operating costs, and vehicle uptime.

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Fuel Economy Economy Gasoline Diesel 199