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

Fuel Economy 150

Fuel Economy Economy Diesel Light 150

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. mpg at DSF versus 17.34 mpg at V8 mode.

Fuel Economy 150

Fuel Economy Economy GM GMC 150

Green Car Congress

NOVEMBER 1, 2013

The engineers tested a prototype 100cc engine on a dyno to gather steady-state fuel consumption, emissions, and combustion stability data over a matrix of speed, load, mixture ratio, and combustion phasing. Four engine control modes were evaluated with the goal of reducing NO x and minimizing fuel economy impact.

Fuel Economy 231

Fuel Economy Economy Engine Fuel 231

Green Car Congress

APRIL 6, 2010

Researchers from the Berner Fachhochschule and EMPA, a Swiss research and services group, are developing a thermoelectric generator for vehicle waste heat recovery that is integrated in the muffler, rather than being installed as a separate thermoelectric generator (TEG) unit on the exhaust line. Click to enlarge. MRS 2010 Spring, DD2.6:

Fuel Economy 218

Fuel Economy San Francisco Economy Exhaust 218

Green Car Congress

JANUARY 15, 2012

The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. 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.

Exhaust 218

Exhaust Diesel West Virginia 2007 218

Green Car Congress

APRIL 23, 2020

The collaboration work was carried out on a Cummins X15 Efficiency Series 6-cylinder diesel engine, which already offers class-leading fuel economy. The reduction of tailpipe NO x is achieved primarily by optimized exhaust temperature control, resulting in significantly improved conversion efficiency of the aftertreatment system.

Diesel 286

Diesel Emissions Exhaust Engine 286

Green Car Congress

APRIL 26, 2019

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 The leeway gained can go towards increasing fuel economy and engine power. Nissan’s Decherd assembly line is using a mirror bore process in the all-new 2019 Nissan Altima 2.5-liter

Nissan 246

Nissan Engine 2019 Fuel Economy 246

Green Car Congress

JANUARY 2, 2019

Their paper is published in the ACS journal Energy & Fuels. Regulated emissions for all test fuels over the cold-start and hot-start LA92 cycles. Data presented as mean ± standard deviation, N=3. A fuel economy penalty was also observed for lower energy content E30 and E78 blends compared to both E10 fuels.

Pollution 255

Pollution Fuel Vehicles Emissions 255

Green Car Congress

JUNE 2, 2014

They also presented the performance of a prototype GPF on removing BC particles from a selected GDI vehicle at various conditions. The major difference between the PFI and GDI engines lies in the fuel injection method and mixture preparation. —Chan et al. Over the FTP-75 phase 1 drive cycle, the GPF reduced BC emissions by 73?88%

Environment 230

Environment Exhaust Gasoline Canada 230

Green Car Congress

OCTOBER 10, 2012

Their paper was presented at the ASME Internal Combustion Engine Division 2012 Fall Technical Conference by Marcello Canova, assistant professor at OSU; lead author was Philipp Skarke, from the University of Stuttgart Institute for Internal Combustion Engines and Automotive Engineering. Exhaust gas exergy map of EcoCAR engine.

Waste 312

Waste PHEV Fuel Exhaust 312

Green Car Congress

APRIL 18, 2016

l/100 km) combined, 47 mpg city and 46 mpg highway; the powertrain shares the transmission architecture with the 2016 Chevrolet Volt extended range electric vehicle (EREV), but includes changes to optimize the system for engine-driven charge-sustaining operation in the range of conditions represented by the US EPA 5 cycle fuel economy tests.

Malibu Hybrid 150

Malibu Hybrid 2016 Chevrolet Design 150

Green Car Congress

FEBRUARY 5, 2016

One response by automakers to increasingly stringent fuel economy requirements is the use of GDI engines, which offer up to a 25% improvement in fuel economy compared to port fuel injection (PFI) engines. —Zimmerman et al. Naomi Zimmerman, Jonathan M. Healy, Kelly Sabaliauskas, James S.

Environment 150

Environment Emissions Exhaust 2014 150

Green Car Congress

APRIL 17, 2013

At SAE World Congress in Detroit, Honda engineers presented several papers on the development of the new Accord plug-in hybrid, describing work on the new gasoline engine (which will also be featured in the coming full hybrid version of the Accord), and the development of the new two-motor system. Valve train (exhaust). VTEC & e-VTC.

Honda 296

Honda Plug-in Plug Hybrid 296

Green Car Congress

SEPTEMBER 17, 2015

GDI engines help improve fuel economy and therefore reduce CO 2 emissions; however, they can have higher particulate emissions due to shorter fuel/air mixing times in the cylinder compared to multiport fuel injection engines. Credit: ACS, Saffaripour et al. Click to enlarge. Earlier post.) —Saffaripour et al.

Gasoline 150

Gasoline Canada Light Engine 150

Green Car Congress

FEBRUARY 5, 2020

Due to the continued exposure of millions of Americans to poor air quality, both the United States Environmental Protection Agency (EPA) and California Air Resources Board (CARB) have announced rulemakings focused on revising the heavy-duty truck emission standards, with a particular focus on tighter limits for oxides of nitrogen (NO x ).

Emissions 291

Emissions Diesel Engine 2010 291

Green Car Congress

JANUARY 5, 2015

Comparison of DSF fuel economy gains and costs with competing technologies, from Tula’s 2013 SAE paper. In 2012, GM Ventures made an equity investment in Tula; in 2013, Tula engineers presented a paper on their technology at the 2013 SAE World Congress. Wilcutts et al. Click to enlarge. Wilcutts, M., Switkes, J.,

GM 150

GM Engine Fuel Fuel Economy 150

Green Car Congress

MARCH 14, 2009

Researchers at the US Department of Energy’s Argonne National Laboratory’s Center for Transportation Research have devised new variable combustion strategy for hydrogen-fueled engines using the Lab’s Modular Automotive Technology Testbed (MATT). SAE 2009-01-1418 ) (Not yet published, to be presented at SAE World Congress April 2009.)

Hydrogen 150

Hydrogen Engine Fuel Fuel Economy 150

Green Car Congress

APRIL 19, 2013

A study by a team from Ford Motor Company and AVL has concluded that a mid-level ethanol blend—greater than E20 but less than E40—appears to be attractive as a long-term future fuel for the US for use in engines optimized for the higher octane blend. Volumetric fuel economy. Reduced enrichment. —Stein et al.

Engine 253

Engine Fuel Ford Future 253

Green Car Congress

JUNE 1, 2017

In these detailed bottom-up models, mobile source emissions are treated for different engine sizes and fuels, that, in the past, relied on standardized protocols obtained in test facilities, but were recently updated based on a number of RDE tests. Resources. Striednig, C. Lamprecht, A. Hammerle, G. Wohlfahrt, A. von der Heyden, M.J.

Europe 150

Europe Diesel Emissions Pollution 150

Green Car Congress

MARCH 31, 2015

At the Symposium on International Automotive Technology 2015 in India in January, Achates Power presented Achates Power presented work related to the first opposed-piston multi-cylinder engine fuel economy demonstration meeting US 2010 emissions standards. Diesel Engines Fuel Efficiency' Lower pumping work.

Engine 150

Engine Power Powered 2015 150

Green Car Congress

MAY 29, 2014

The V2G-capable electric bus provides the school savings of $6,070 per seat in net present value ($230,000 per bus over the vehicle’s 14-year lifespan) and becomes a net present benefit after five years of operation. medical and climate change costs), the net present benefit would be $5,700 per seat. Without externalities (e.g.,

Fleet 210

Fleet Electric Electrical Climate Change 210

Green Car Congress

AUGUST 19, 2013

Ambient air measurement studies reporting selected individual hydrocarbon species in urban air have highlighted the importance of motor vehicle contributions, but total mass emissions are not estimated, and many hydrocarbons known to be present in liquid fuels are missing (i.e., unmeasured or not reported) from ambient air studies.

Emissions 247

Emissions Los Angeles Motor Motors 247

Green Car Congress

OCTOBER 16, 2013

Schematic diagram of test vehicle engine & exhaust system and PM sampling systems. Fuel injectors were side-mounted. The standard exhaust system included close-coupled catalysts on each engine bank to assist with fast light-off and a common underbody catalyst after the two exhaust streams merge. Resources.

Standards 246

Standards Emissions Miles Engine 246

Green Car Congress

DECEMBER 23, 2013

The chemistry of a fuel impacts the emissions from an engine, with the most obvious example being unburned or partially burned fuel which is a major component of engine exhaust. Engine-out exhaust contains typically 1?3% 3% unburned or partially burned organic fuel components. 99% of these organic compounds.23.

Emissions 294

Emissions Ford Exhaust Engine 294

Green Car Congress

JUNE 2, 2014

Average NO x emissions of test vehicles over the five test routes compared to US-EPA Tier2-Bin5 emissions standard; repeat test variation intervals are presented as ±1?; Overall, urban/suburban driving leads to a 32-39% reduction in fuel economy over highway driving. Click to enlarge. Click to enlarge. —Thompson et al.

Diesel 230

Diesel Light Emissions Los Angeles 230

Green Car Congress

FEBRUARY 5, 2014

Two scenarios of US ethanol consumption and projections of original, revised, and repealed RFS2 requirements from the present to 2022. car warranties, cost, food-vs-fuels arguments). Primary technical concerns with using intermediate-level blends of ethanol in the vehicle fleet include: Fuel economy. Source: ICCT.

Gasoline 230

Gasoline Exhaust Water Fuel 230

Green Car Congress

APRIL 14, 2010

The next generation of Ford’s EcoBoost turbocharged, direct-injection gasoline engines will introduce cooled EGR (exhaust gas recirculation), enabling higher compression ratios, according to Ford executives speaking at the SAE 2010 World Congress in Detroit. Alger et al. , SAE 2010-01-0353. Whitaker et al. , SAE 2010-01-0585.

Ford 210

Ford Congress 2010 Gasoline 210

Green Car Congress

AUGUST 6, 2014

Graphic from GM, Edwards AMR 2014 presentation. Source: Edwards, AMR 2014 presentation. Some strategies to reduce emissions include running the engine highly dilute, with excess air or with recirculated exhaust gases as part of the combustion charge. Resources. Simulation of injector. Click to enlarge. Click to enlarge.

Engine 335

Engine GM Ford 2014 335

Green Car Congress

AUGUST 14, 2009

a high air-to-fuel ratio) SIDI (e.g., gasoline) engines, with a higher charge mass and higher temperature spread, can deliver improved thermal efficiency and better fuel economy. Each has drawbacks, noted GM’s Wei Li in a presentation at the recent Department of Energy DEER conference in Dearborn, Michigan.

GM 150

GM Concept Engine Emissions 150

Green Car Congress

AUGUST 10, 2009

Tom Cackette, Chief Deputy Executive Office of the California Air Resources Board, spent the bulk of his talk during the opening panel discussing the response to climate change, which he called “ the defining environmental challenge of this century. SULEV/Tier 2 Bin 2 is the target. smog and particulates. Advances in SIDI.

Gasoline 150

Gasoline Diesel Engine Emissions 150

Green Car Congress

MAY 4, 2009

Conceptual schematic of direct thermoelectric generator mounted in a vehicle’s exhaust stream. The exhaust energy content of Atkinson-cycle engines, which are used in many hybrid powertrains, is lower than conventional IC engines due to the cycle’s inherently higher thermal efficiency. Indirect configurations are also possible.

Design 150

Design Ford Energy Exhaust 150

Green Car Congress

OCTOBER 28, 2010

Interest in HEVs and BEVs is driven by a dramatic reduction in or elimination of tailpipe emissions, and the increased fuel economy of these vehicle types helps reduce the world’s dependence on oil. These factors include market trends, regulatory environment, consumer sentiment and technology development in these markets.

2020 250

2020 Global Electric Vehicles Hybrid 250

Green Car Congress

SEPTEMBER 13, 2010

The intent is to enable aggressive yet near term downsizing and downspeeding of existing engine families, delivering proven CO reduction and fuel economy improvement, without the usual dynamic compromises that typically limit market acceptance. —Morris et al. common rail TDI engine. —Guy Morris.

VRLA 210

VRLA Hybrid Downsizing Fuel 210

Green Car Congress

MARCH 27, 2015

The Freightliner SuperTruck features a low-back-pressure, next-generation aftertreatment system that efficiently removes NO x from the exhaust stream. The aftertreatment system features additional insulation to retain maximum heat energy in the exhaust. This reduces friction, and increases efficiency and fuel economy.

2009 150

2009 Engine Detroit Oregon 150

Green Car Congress

AUGUST 15, 2016

In that study, they found that fuel economy and power output can both be improved by increasing the compression ratio and applying exhaust gas recirculation (EGR) under low loads and by lowering the compression ratio and applying higher boost pressure under high loads. Croguennec, S.

Infinity 150

Infinity Engine Motor Motors 150

Green Car Congress

DECEMBER 5, 2009

Despite problems with its characteristics (toxicity; handling, storage and delivery requirements; and materials compatibility), methanol attracted a great deal of interest in the 1970s and later as an alternative fuel, partly because it can be produced from a number of raw and renewable resources. —Fan et al. —Fan et al.

Gasoline 218

Gasoline Emissions Alternative Fuels Engine 218

Green Car Congress

MAY 8, 2013

At the recent 2013 SAE World Congress, engineers from Bosch and AVL presented papers on progress in the ACCESS project, describing the design, combustion development and controls development for a resulting 4-cylinder gasoline turbocharged direct injection (GTDI) engine with part-load HCCI capability. Earlier post.). —Wheeler et al.

Fuel Economy 278

Fuel Economy Economy Fuel Engine 278