Green Car Congress

OCTOBER 16, 2013

Homogeneous GDI provides fuel efficiency benefits from charge air cooling, more facile turbocharging, and the downsizing that these permit. Schematic diagram of test vehicle engine & exhaust system and PM sampling systems. —Maricq et al. Fuel injectors were side-mounted. The vehicles were fueled with an E10 ethanol?gasoline

Standards 246

Standards Emissions Miles Engine 246

Green Car Congress

FEBRUARY 4, 2013

During its recent Innovation Day presentations ( earlier post ), PSA Peugeot Citroën announced that it will commercialize high-efficiency gasoline engines featuring dedicated exhaust gas recirculation (D-EGR), derived from a collaborative program with SwRI in the US. PSA has filed for two patents on its work. PSA concept D-EGR engine.

Gasoline 268

Gasoline 2018 Engine Commercial 268

Green Car Congress

MAY 11, 2011

The primary purpose of the Study was to answer the fundamental question about fuel consumption. Scuderi Group commissioned SwRI to design and implement the computer Study, which could simulate an SSC engine in any vehicle of choice, driven through any drive cycle of choice. Click to enlarge.

2011 210

2011 Nissan Engine Standards 210

Green Car Congress

SEPTEMBER 13, 2010

liter ELC-Hybrid to downsized 1.4L VTES + SpeedStart. CPT and AVL’s most recent work assesses the potential of a VTES equipped downsized ELC-Hybrid vehicle in combination with the CPT SpeedStart Integrated Starter Generator ( earlier post ) and the UltraBattery. Click to enlarge.

VRLA 210

VRLA Hybrid Downsizing Fuel 210

Green Car Congress

MAY 18, 2015

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).

Fuel 150

Fuel Exhaust Gas Engine 150

Green Car Congress

OCTOBER 15, 2011

Developed for the latest 1-liter downsized gasoline engines. The successful collaboration with Ford resulted in a turbocharger design that meets the particular technical challenges posed by small, downsized engines. Click to enlarge. Earlier post.) The first two engines will generate 74 and 88 kW from a displacement of just one liter.

Engine 225

Engine Ford Supplies Downsizing 225

Green Car Congress

FEBRUARY 1, 2009

A member of the ETH research team, which is led by Lino Guzzella, Professor of Thermotronics, will present a paper on their work at the upcoming SAE World Congress 2009 in Detroit in April—one of a number to be presented on the topic there. The compressed air supply also allows extreme downsizing. Dönitz et al. Andrej Ivanco et al.

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Hybrid Engine Downsizing 2009 199

Green Car Congress

OCTOBER 29, 2019

Using the pressure from the exhaust gas from the active cylinders, the ‘idle’ cylinders could be expanded to extract more work out of the engine during partial load operation. ECONAMIQ provides greater savings potential than the popular downsizing of internal combustion engines, while the benefits of a larger displacement is preserved.

Fuel 186

Fuel San Jose 2019 Engine 186

Green Car Congress

AUGUST 4, 2011

Mazda hosted Green Car Congress at a SKYACTIV Technologies media workshop this week in Vancouver, Canada, at which engineering management explained the development philosophy, approach and results for the initial set of SKYACTIV technologies. Extreme compression ratio rather than downsizing. Although downsizing—i.e.,

Mazda 322

Mazda Engine Gasoline Diesel 322

Green Car Congress

JUNE 11, 2016

Ricardo has previously reported on a simulation environment set up to enable the study of engine and after-treatment technology over RDE cycles, incorporating post-processing with the EMROAD and CLEAR tools. liter diesel engine. Attribute analysis presented in SIA paper. The cost comparison is with respect to a Euro 5 baseline.

Light 150

Light Diesel Price Exhaust 150

Green Car Congress

AUGUST 25, 2015

Knock and fuel octane rating are becoming increasingly important due to many powertrain design trends including downsizing, downspeeding, cylinder deactivation, and hybridization. … In their study, Leone et al. In their study, Leone et al. Leone et al.

Engine 150

Engine Fuel GM Ford 150

Green Car Congress

JULY 14, 2016

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., mpg (10.99

Climate 150

Climate Engine Carbon Fuel Economy 150

Green Car Congress

SEPTEMBER 11, 2015

Researchers in an unrelated study of direct injection natural gasoline engines (dual-fuel combustion in CI-engines using RCCI as well as conventional duel-fuel combustion) at Chalmers University (Sweden) noted that methane’s very high octane number allows the use of high compression ratios in spark ignition engines.

Gas 150

Gas Engine Gasoline Downsizing 150

Green Car Congress

SEPTEMBER 4, 2013

This combined combined aggressive 50% downsizing of the engine with an electric supercharger for transient low-speed performance and a 12+X volt micro-hybrid stop-start and energy recuperation systems. It is capable of operating in exhaust temperatures up to 850 °C, at speeds up to 60,000 rpm and delivering a peak power of 2 kW (@12V).

Fuel Economy 239

Fuel Economy Diesel Economy Gasoline 239

Green Car Congress

APRIL 8, 2019

It is more prevalent in the downsized, turbocharged engines that car makers are now producing for improved fuel efficiency while maintaining power output. Pre-ignition remains a bottleneck to further downsizing and improving engine efficiency. Pre-ignition is sporadic and unpredictable. —Eshan Singh, lead author.

Downsizing 186

Downsizing Exhaust 2019 Oil 186

Green Car Congress

JANUARY 2, 2018

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. The researchers used a Ricardo E6 4-stroke SI engine in the study, with a swept volume of 0.5

Downsizing 186

Downsizing Engine Fuel Economy E6 186

Green Car Congress

MAY 17, 2013

To determine the vehicle efficiency effect of ethanol, they compiled paired energy efficiency data from all known studies of existing spark injection (SI)-engine vehicles operating on ethanol/gasoline blends and pure gasoline. Most of the studies expressed vehicle efficiency in various volume-based units. Credit: ACS, Yan et al.

Fuel 210

Fuel Energy Gasoline-Electric Gasoline 210

Green Car Congress

AUGUST 20, 2013

A team at Monsanto and colleagues at AVL Powertrain have successfully designed and demonstrated an onboard low-temperature ethanol reformer that can be driven by exhaust heat. Many papers have described high-temperature steam reforming of ethanol at around 600 °C but.this temperature is too high to be driven by engine exhaust.

Fuel Economy 230

Fuel Economy Exhaust Economy Fuel 230

Green Car Congress

NOVEMBER 23, 2015

Steels hardened in this way are suited for use in components subjected to high mechanical and thermal loads in downsized, energy-efficient and low-emission engines of the future. Combustion engines still have potential to save energy and reduce emissions; a current trend is to use downsized engines of the same or even increased power.

Downsizing 150

Downsizing Kits Engine Carbon 150

Green Car Congress

DECEMBER 17, 2015

The engine should yield fuel efficiency gains of more than 50% compared to a downsized, turbo-charged gasoline direct injection engine, while reducing the overall cost of the powertrain system, said Fabien Redon, Vice President, Technology Development at Achates Power. —Don Earlier post.) Delphi GDCI. earlier post ). Earlier post.).

Downsizing 150

Downsizing Engine Fuel Gasoline 150

Green Car Congress

AUGUST 16, 2016

Conduct fundamental studies of an alkali halide based solid‐electrolyte to demonstrate self‐ healing properties to overcome low cycle life and safety concerns associated with dendrite formation for lithium metal batteries. valve faces, piston crowns, and exhaust ports) to improve fuel economy. Massachusetts Institute of Technology.

Vehicles 150

Vehicles Plug-in Lithium Ion Universal 150

Green Car Congress

FEBRUARY 3, 2017

A downsized gasoline engine is one of the proven technologies that improves engine thermal efficiency and thus reduces automotive fleet CO 2 emissions, by as much as 25%. A downsized gasoline engine is one of the proven technologies that improves engine thermal efficiency and thus reduces automotive fleet CO 2 emissions, by as much as 25%.

Engine 150

Engine Downsizing Fuel Gasoline 150

Green Car Congress

APRIL 14, 2011

Results of this study showed that the pre-chamber jet ignition combustion system roughly matches HCCI fuel economy across both NEDC and FTP drive cycles, with a 13% improvement in fuel economy recorded over the baseline stoichiometric (λ=1) spark ignition combustion system. The new study.

Fuel Economy 210

Fuel Economy Economy Engine Fuel 210

Green Car Congress

MAY 12, 2017

A new study quantifying emissions from a fleet of gasoline direct injection (GDI) engines and port fuel injection (PFI) engines finds that the measured decrease in CO 2 emissions from GDIs is much greater than the potential climate forcing associated with higher black carbon emissions from GDI engines. —Saliba et al.

Fleet 207

Fleet Engine Global Fuel Economy 207

Green Car Congress

AUGUST 1, 2016

High-research octane number (RON) fuels are known to enable more efficient, higher-performance SI operation via engine downsizing and boosting. Previous studies have investigated the sooting potential of various fuel components by adding them individually to a blendstock and measuring the impact on particulate emissions.

Engine 150

Engine Fuel Emissions Pollution 150

Green Car Congress

APRIL 10, 2014

In a paper on the OBS presented at the SAE 2014 World Congress, the researchers suggested that potential applications include downsizing to increase fuel economy by ?10% The OBS system uses waste exhaust energy to effect the fuel separation and provides a simple and reliable means for managing the separated fuels.

Gasoline 316

Gasoline Engine Toyota Fuel Economy 316

Green Car Congress

MARCH 20, 2013

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.

Gasoline 225

Gasoline Exhaust Downsizing Engine 225

Green Car Congress

APRIL 17, 2014

In a presentation at the SAE 2014 High Efficiency IC Engine Symposium and then in a paper given at SAE 2014 World Congress, Mark Sellnau, Engineering Manager, Delphi Advanced Powertrain, reported that Brake Specific Fuel Consumption for the 1.8L Current study. Earlier post , earlier post.). —Sellnau et al. 2014-01-1300.

Gasoline 304

Gasoline Engine Fuel Wisconsin 304

Green Car Congress

MAY 15, 2013

The goal of the studies was make a preliminary assessment of Pinnacle Engines suitability for automotive applications based on the work-to-date on the small single-cylinder engines. The fuel economy study, using GT Power, encompassed both a naturally aspirated 1.5-liter, —FEV analysis. Fuel economy. mpg US (6.3 mpg US (8.0

Fuel Economy 230

Fuel Economy Economy Engine Downsizing 230

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. Combustion studies. Wheeler, J.,

Fuel Economy 278

Fuel Economy Economy Fuel Engine 278

Green Car Congress

NOVEMBER 22, 2016

A 2025 CO 2 target of an average 70 g/km for new cars in the EU could be met with very little electrification and with an average payback period of less than 4 years, according to a new study by the International Council on Clean Transportation (ICCT). Peter Mock, Managing Director of ICCT Europe.

CO2 150

CO2 Cars 2014 Exhaust 150

Green Car Congress

JUNE 16, 2011

Turbocharging and downsizing can also yield fuel consumption reductions. Downsizing is an important strategy applicable in combination with technologies that increase engine torque, such as turbocharging or supercharging. Part of the gain from advanced-level CI diesel engines comes from downsizing.

Fuel 210

Fuel Downsizing Fuel Economy Diesel 210

Green Car Congress

JANUARY 16, 2017

Engine downsizing and down-speeding are well suited to take advantage of higher-octane fuels because these engines encounter the knock limit more frequently. Operation under boosted conditions is essential to Co-Optima’s Thrust I effort to maintain acceptable power density for downsized and downsped SI engines.

Engine 150

Engine Fuel Downsizing Gasoline 150

Green Car Congress

FEBRUARY 4, 2013

Since the pistons cyclically expose or occlude the exhaust and intake ports, there is no valve train. Because the intake and exhaust ports are at the opposite ends of the cylinder, opposed-piston engines have efficient, uniflow scavenging. Scavenging continues until a 230° crank angle, at which time the exhaust ports close.

Diesel 334

Diesel Power Powered Exhaust 334

Green Car Congress

FEBRUARY 10, 2014

Many approaches have been attempted to achieve CAI operation on the four-stroke spark ignition engines, such as intake air heating, high compression ratio, dual fuel, recycling the exhaust gas, and so on. To minimize the air short-circuiting rate, the intake and exhaust valve timings were adjusted. Earlier post , earlier post.).

Gasoline 186

Gasoline Engine Exhaust Fuel 186

Green Car Congress

OCTOBER 8, 2013

This leads to lower particulate matters (PM) emission in conventional diesel combustion, as shown by a number of other studies. In the paper presented at the 2013 World Congress, Kalghatgi and his team investigated if and how an existing modern diesel engine could be run on low Cetane fuels in general and naphtha in particular.

Gasoline 207

Gasoline Fuel Range Diesel 207

Green Car Congress

JULY 17, 2015

The alternative-fuel car evolved to reduce exhaust emissions and other problems derived from burning fossil fuels. The impetus for this change came from a study by the US Idaho National Lab [ 2 ]. In fact, the optimized PHEV is much more efficient as a long range liquid fuel vehicle, because the engine is downsized.

PHEV 150

PHEV Plug-in Renewable Energy 150