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At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fuel economy (CAFE) target of 26 mpg (9.05 Earlier post.). l/100 km), and as such would not meet the GHG requirement of 28 mpg (8.4
Changes in the attributes (clockwise from upper left, weight, power, fuel economy and torque) of the Honda Accord over time as an example of fleet trends in the US. In contrast, fuel economy actually increased by 15% during that period. Knittel, 2009. Click to enlarge. Knittel, Christopher R.
Future advanced engine and powertrain configurations must address emission and fuel economy requirements for worldwide applications, transition to bio-fuels, and synergies with future powertrain trends. improvement in fuel economy over the baseline engine for the Metro-Highway (M-H) cycle. improvement in fuel economy over the baseline.
The team sees further potential for fuel economy improvement with engine downsizing. Estimated drive-cycle fuel economy and emissions—based on the single-cylinder 0.66L research engine efficiency and emissions maps—was 32.4 H2-DI showed a combined cycle fuel economy improvement to 45.4 Source: Wallner 2011.
Researchers at Tianjin University in China report that combing split injection to the Miller cycle with boost pressure can effectively decrease the knock tendency and increase the engine torque in a downsized spark-ignition engine. Their paper is published in the journal Fuel. 2017.11.006.
Port assisted direction injection (PDI)—a dual injection system for combining the benefits of port fuel injection (PFI) and direct injection (DI), and enabling a dual fuel system approach for high compression ratios and extreme downsizing on boosted engines. Configuration of the ACCESS multi-mode combustion system. Source: Bosch.
Ford’s approach to the project was to engineer a comprehensive suite of gasoline engine systems technologies, including: Aggressive engine downsizing in a mid-sized sedan from a large V-6 to a small I-4. Cycle-based CAE analysis of fuel economy contribution of critical technologies. Earlier post.). The approach. Electric TiVCT system.
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. The OSU EcoCAR PHEV powertrain.
Continuing to emphasize a downsizing approach, Volkswagen presented two new engines at the at the 30 th Vienna Engine Symposium (7-8 May): the 1.2-liter Downsizing is rigorously being developed in the volume segments with the 1.2 Click to enlarge. liter TSI gasoline engine and the 1.6-liter liter TDI diesel. Earlier post.).
Small displacement engines offer excellent CO 2 and fuel economy benefits; they have lower parasitic losses and operate more efficiently under part load conditions. Formed in 2006, the company is a spin-out from the Honda Ecotechnology Centre at Cranfield University. They have also designed a 100 mpg UK (83 mpg US, 2.8
The project aims to deliver full hybrid equivalent fuel economy and performance with less than 70 g/km CO 2 emissions as measured over the European Drive Cycle, but at a significantly lower cost. version of its vehicle (a 2009 Ford Focus) but with fuel economy and CO 2 emissions approaching those of a Prius.
Magnomatics was founded in 2006 by a group of engineers from the University of Sheffield (UK) to commercialize magnetic gearing and motor technology developed there. Much further testing and optimization remains to be done, Kirby noted. Background.
Ford says the engine can deliver up to 15% better fuel economy than comparable six-cylinder engines. Turbo lag is virtually eliminated for quicker response when the driver needs power for passing while enabling the exhaust valve to stay open longer for lower emissions and up to 15% better fuel economy than comparable six-cylinder engines.
As the project approaches its mid-point, the research team—led by Ricardo and including Ford Motor Company, Controlled Power Technologies (CPT), the European Advanced Lead Acid Battery Consortium (EALABC), Faurecia and the University of Nottingham—has completed the build of the first functional integration prototype ADEPT vehicle.
GMZ Energy, a provider of advanced nano-structured thermoelectric generation technology, was co-founded by MITs Professor Gang Chen and collaborator Zhifeng Ren of the University of Houston. An automotive TEG is intended to improve fuel economy by power from waste heat to reduce the electric generator load on the engine.
A team from McMaster University in Canada has published a comprehensive review of recent progress in low-temperature combustion (LTC), alternative fuels (AF), over-expansion Atkinson cycle, and waste heat recovery (WHR) techniques as applied to hybrid-specific engines. Their open-access paper is published in the journal Energy Reports.
A multi-cylinder version is practical for a wide variety of vehicles and offers greatest benefit to C and D class passenger cars which can take advantage of the low cost architecture and significantly improved fuel economy and emissions. Lubrication system. Wet sump with plain bearings and electric oil pump. Cooling system.
An increase in pumping requirements for any reason carries a fuel economy penalty. Scuderi explained that “Millerizing” the Scuderi split cycle means downsizing the compression cylinder to get the over-expansion technique that is the core of the Miller approach—achieved in a convention engine by using early or late valve closing.
The study, by a team of researchers from Carnegie Mellon University, University of Georgia, Aerodyne Research, California Air Resources Board (ARB), Ohio State University, UC Berkeley, and UC San Diego is published in the ACS journal Environmental Science & Technology. For our fleet, increases in the fuel economy of 1.6% (0.5−2.4%;
A team from Brunel University, MAHLE Powertrain and University College London studied the combined effects of different inlet valve operating strategies on combustion, performance and emissions with different ethanol and 1-butanol blends with gasoline in a single-cylinder spark-ignition research engine equipped with a fully variable valvetrain.
The found that using a GPF did not show any fuel economy and CO 2 emission penalties, while the emissions of total hydrocarbons (THC), carbon monoxide (CO), and nitrogen oxides (NOx) were generally reduced. liter downsized turbocharged centrally-mounted direct injection engine. Yang et al. Click to enlarge.
DeCicco’s analysis shows that optimizing internal combustion engines plus rising adoption of grid-free hybrids will enable new fleet fuel economy (unadjusted) to reach 52 mpg (4.52 Adjusted on-road fuel economy correspondingly would be 41 mpg (5.74 L/100km) by 2025 and 74 mpg (3.18 L/100km) by 2035. L/100km) by 2035.
Co-Optima estimations indicate that significant fuel economy improvements are possible with improvements to RON, S, and HOV. compression ratio, extent of downsizing, etc.). Estimations indicate that fuel economy improvements are possible with improvements to RON, S, and HOV. Source: Co-Optima capstone report.
In 2010, The US Department of Energy (DOE) selected Delphi, along with partners Hyundai America Technical Center, Inc (HATCI); Wisconsin Engine Research Consultants (WERC); and the University of Wisconsin-Madison (UW) for a $7.48-million Earlier post , earlier post.). Earlier post.) These were two main consideration in base engine design.
A team at the Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST), Saudi Arabia, is proposing the use of terpineol as an octane booster for gasoline in a spark ignited (SI) engine.
Such a standard will be necessary for the global automotive industry to achieve the economies of scale demanded by original equipment manufacturers. This means that in addition the power demand is more difficult to achieve with engine downsizing and transmission down-speeding alone.
Researchers at Tsinghua University in China are studying the effects of Dual-Fuel Spark Ignition (DFSI) combustion fueled with different alcohols and gasoline. Researchers are seeking new effective methods for knock suppression and subsequent fuel economy improvement. Fuel economy performance of alcohol-gasoline DFSI.
The ADEPT project is led by Ricardo in a research partnership including the Advanced Lead Acid Battery Consortium (ALABC); Controlled Power Technologies (CPT); Faurecia Emissions Control Technologies UK Ltd; Ford Motor Company and the University of Nottingham. The final results will be presented at the UK’s LCV2016 event on 14-15 September.
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.,
The Rice lab of chemist James Tour and colleagues at the Chinese Academy of Sciences, the University of Texas at San Antonio and the University of Houston have developed a robust, solid-state catalyst that shows promise to replace expensive platinum for hydrogen generation.
Ohio State University. Iowa State University. University of Pittsburgh. Rutgers, The State University of New Jersey. Penn State University Park. University of Washington, Seattle. West Virginia University Research Corporation. The Research Foundation for the SUNY Stony Brook University.
The analysis used by federal agencies to set standards for fuel economy (CAFE) and greenhouse gas emissions for new US light-duty vehicles from 2017 to 2025 was thorough and of high caliber overall, according to a new report from the National Research Council. UMTRI Survey: US drivers want better fuel economy, don’t care how.
In a policy analysis in the ACS journal Environmental Science & Technology , researchers from the Universities of Cambridge, Exeter and Oxford argue that, due to the increased emphasis on alternative fuels with drastically differing energy densities, vehicle efficiency should be evaluated based on energy rather than volume. Click to enlarge.
Conflicting evidence does not support making a firm conclusion on the fuel consumption benefit of catalysed Exhaust Gas Recirculation (EGR), according to a review of current studies by a team at the University of Bath (UK). As an example, one study found a decrease in fuel consumption of up to 2%, while another found an increase of 1.5%-3.5%.
The engine is undergoing a significant evolution of its own, as new fuel economy and emissions standards in the light-duty and heavy-duty sectors push the development of new technologies on an unprecedented scale toward the theoretical limits of engine operation. That is not to say that things will stay as they are now.
The additional control of compressed air for transient performance provided by Cobra means that we can purge diesel particulate filters and other forms of exhaust after-treatment for NO x reduction and, most importantly, without compromising fuel economy. Phil Bush, technology manager at Eminox. Earlier post.)
At a compression ratio of 12:1, use of 98 RON fuels (including E20) yielded significant fuel efficiency improvements relative to 92 RON fuel, offering the possibility of fuel economy parity with E10 fuels for some driving cycles. Eight university teams will be working with Co-Optima researchers to carry out fundamental technical studies.
The Freightliner SuperTruck uses a downsized and downsped 10.7-liter This reduces friction, and increases efficiency and fuel economy. DTNA began work on the SuperTruck program in 2010 together with Detroit and other partners, including national labs, universities and suppliers. DTNA SuperTruck technology elements. Powertrain.
2/12/07 GM is aggressively pursuing plug-in hybrids "because of the tremendous potential to significantly increase fuel economy," according to spokesman Brian Corbett. But I can tell you that this is a top priority program for GM, given the huge potential it offers for fuel-economy improvement." ( GM ). Red Herring ).
A number of papers from Kalghatgi and his colleagues—and now other groups, including Tsinghua University in China and the Eindhoven University of Technology—have been published recently, exploring different aspects of this approach. Based on these engine studies, they installed a downsized four-cylinder 1.6-liter
Frank has spent more than 30 years in breakthrough vehicle development, during which he received two world records for vehicle fuel economy, designed nine generations of PHEVs, and was a four-time winner of US DOE Advanced Vehicle Design competitions. Table of Contents. Introduction: Addressing the Earth Crisis.
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