Green Car Congress

MAY 29, 2020

Advanced low-temperature-combustion (LTC) strategies of downsized and boosted engines are capable of offering ultra-low emissions and higher efficiencies. In a recent study, published in the journal Combustion and Flame , they report that their predictions implicate the composition and temperature of the initial mix of fuel and air.

Downsizing 186

Downsizing Engine Fuel 2020 186

Green Car Congress

NOVEMBER 1, 2010

These extreme downsizing indicates the potential of a SI, knock-free engine, operating at the same peak pressure as the diesel engine and higher engine speeds. However this aggressive downsizing may not be practical because other constraints (durability, exhaust temperatures). In this manner a 3.6 —Bromberg and Cohn.

Diesel 218

Diesel Engine Downsizing Fuel 218

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). According to the review, the conversion of HCs, CO, and NO in the exhaust gas by the catalyst can result in up to a 4.5%

Fuel 150

Fuel Exhaust Gas Engine 150

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

APRIL 20, 2010

The Delphi study assessed the technology of downsizing and turbocharging; GDI fueling and its synergies with turbocharging; and an analysis of downsized 3-cylinder versus 4-cylinder engines. Downsizing can be accomplished via reduction in the number of cylinders, and/or a reduction in the displaced volume of each cylinder.

Gasoline 231

Gasoline Downsizing Engine CO2 231

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

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. —Guy Morris.

VRLA 210

VRLA Hybrid Downsizing Fuel 210

Green Car Congress

FEBRUARY 22, 2018

Polycyclic aromatic hydrocarbons (PAHs) and nitrated PAHs were quantified in both the vapor and particle phases of the PM, with the GPF-equipped vehicles practically eliminating most of these species in the exhaust. liter downsized turbocharged centrally-mounted direct injection engine. The first was equipped with a 2.0-liter

Gasoline 253

Gasoline Emissions Engine Fuel Economy 253

Green Car Congress

MAY 8, 2015

Thanks to this rightsizing approach, the new engine enjoys the consumption benefits of a downsizing engine in partial load operation, while at higher loads it has the advantages of a large-displacement engine. Contributing to this benefit is also the exhaust manifold, integrated in the cylinder head. Stansfield, P., and Freeland, P.

Audi 150

Audi MPG Downsizing 2015 150

Green Car Congress

FEBRUARY 18, 2014

The unit can be applied to naturally-aspirated or forced induction engines—though most likely will be applied to downsized turbocharged engines as an additional unit to the existing turbocharger. The exhaust gas can reach temperatures greater than 900 °C, whereas the turbine upper functional limit is 850 °C. —Nick Pascoe.

Congress 236

Congress Hybrid Exhaust Gas-Electric 236

Green Car Congress

JUNE 11, 2019

g/bhp-hr in low load operation using the proposed low load certification cycle being developed at Southwest Research Institute under a contract from the California Air Resources Board (CARB). The technologies outlined are either commercial or market-ready options that can be deployed on vehicles by model year 2024 to achieve 0.05

Standards 191

Standards Diesel 2019 Emissions 191

Green Car Congress

NOVEMBER 30, 2009

This is to be achieved through the synergistic application of an extremely downsized gasoline engine coupled with electrified boosting and exhaust gas energy recovery; micro-hybrid functionality with stop/start, torque assist and regenerative braking; and a novel energy storage technology. The £3 million (US$4.9 Earlier post.)

Lead Acid 225

Lead Acid CO2 Exhaust Gasoline-Electric 225

Green Car Congress

FEBRUARY 1, 2009

The pneumatic hybrid engine, which follows the downsizing and supercharging paradigm, offers a fuel-saving potential that is almost equal to that of hybrid electric powertrains while inducing much lower additional mass and cost penalties, according to the ETH Zürich researchers. The compressed air supply also allows extreme downsizing.

Hybrid 199

Hybrid Engine Downsizing 2009 199

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. … To achieve continued improvement in engine efficiency and CO 2 emissions, it is critical to quantify the roles of fuel octane rating and alcohol content.

Engine 150

Engine Fuel GM Ford 150

Green Car Congress

APRIL 19, 2013

Given the properties of the fuel blend, improved fuel efficiencies can be generated by several approaches, including downsizing/downspeeding; increased compression ratio; reduced enrichment; and the leveraging of improved efficiency at part load. Downsizing/downspeeding. Reduced enrichment. benefits for CO 2 relative to E10, but 2.8%

Engine 253

Engine Fuel Ford Future 253

Green Car Congress

MAY 7, 2009

The engine generates better fuel consumption than the latest downsized, turbocharged GDI engines, and is optimal for use in an range-extended electric vehicle application, according to the company. Exhaust from the low-pressure cylinder. The 3-cylinder, 700cc engine delivers power output comparable to a 1.8-liter Ilmor Overview.

Concept Engine 150

Concept Engine Engine Concept Exhaust 150

Green Car Congress

APRIL 24, 2010

In recent years two methods, namely downsizing and downspeeding, were established on the market to reduce CO 2 emissions while maintaining the driving performance of engines with identical effective power but a larger displacement. bar) is achieved by applying high- or low-pressure exhaust-gas recirculation loops. < IMEP < 22.5

Engine 170

Engine Hybrid Fuel Exhaust 170

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. Resources. —Maricq et al. Credit: ACS, Maricq et al. Click to enlarge. gasoline blend.

Standards 246

Standards Emissions Miles Engine 246

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. Differentiated Analysis of Downsizing Concepts”). SULEV/Tier 2 Bin 2 is the target.

Gasoline 150

Gasoline Diesel Engine Emissions 150

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. Their paper is published in the journal Fuel. 2017.11.006.

Downsizing 186

Downsizing Engine Fuel Economy E6 186

Green Car Congress

AUGUST 4, 2009

Heat required to bring the fuel to SC states is recovered from the exhaust gas of the engine. To attenuate that risk, the researchers use a diluent such as CO 2 , H 2 O or exhaust gas. George Anitescu from Syracuse presented the work in a poster at the DEER 2009 conference in Dearbon, Michigan. At SC conditions, however (T?450

Diesel 225

Diesel Fuel Emissions 2009 225

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

MARCH 27, 2015

The Freightliner SuperTruck uses a downsized and downsped 10.7-liter 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.

2009 150

2009 Engine Detroit Oregon 150

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

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 significant fraction of the GDI PM 2.5 The extent of fuel-air mixing can be affected by injection system design. —Zimmerman.

Climate 150

Climate Engine Carbon Fuel Economy 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. Earlier post.) Earlier post.). Fabien Redon.

Downsizing 150

Downsizing Engine Fuel Gasoline 150

Green Car Congress

JULY 13, 2011

After the steam from the boiler drives the high-pressure turbine, the exhausted steam is returned to the boiler and reheated for driving to the medium-pressure turbine, and subsequently the low-pressure turbine. UST adopts a medium-pressure turbine, in addition to high- and low-pressure turbines. Sai Hiramatsu et al. Hiroyuki Ohira et al.

Mitsubishi 199

Mitsubishi Fuel Mariner Panama 199

Green Car Congress

MAY 17, 2013

Dedicated ethanol (or E85) engines have the promise to improve efficiency substantially over comparable regular gasoline engines through direct-injection, increased geometric CR, variable valve timing, exhaust gas recirculation, aggressive turbocharging, and downsizing and/or downspeeding. Xiaoyu Yan, Oliver R. Inderwildi, David A.

Fuel 210

Fuel Energy Gasoline-Electric Gasoline 210

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. © 2019 Eshan Singh. Pre-ignition is sporadic and unpredictable. —Eshan Singh.

Downsizing 186

Downsizing Exhaust 2019 Oil 186

Green Car Congress

NOVEMBER 28, 2016

Thrust 1 builds on the significant amount of work carried out over the past several decades, focused on building advanced boosted, downsized, and downspeeded spark ignition engines. High combustion noise and high HC and CO emissions are also a problem, with lower exhaust temperatures representing a challenge for current emissions controls.

Engine 150

Engine Fuel Vehicles Emissions 150

Green Car Congress

NOVEMBER 23, 2011

The aftertreatment program within the 21CTP should be continued, and DOE should continue to support the activities of the Cross-cut Lean Exhaust Emissions Reductions Simulations (CLEERS) program that interface with the activities of the aftertreatment technical community at large. Recommendation 3-7. HYBRID VEHICLES. Recommendation 4-3.

EPA 199

EPA Fuel Engine Hybrid 199

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

JANUARY 26, 2012

In a 2010 paper, Roger Stone, Engineering Director, Torotrak noted that conventional turbo- and supercharging technologies are more than capable of delivering the required peak power and torque levels from downsized engines but suffer from a number of. It gives the next generation of downsized powertrains ‘big-engine’ response.

Downsizing 270

Downsizing Vehicles Fuel Economy 2010 270

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. Partridge, R.,

Gasoline 316

Gasoline Engine Toyota Fuel Economy 316

Green Car Congress

APRIL 17, 2014

Due to the lower exhaust enthalpy of lower temperature engines using PPCI, it is difficult to produce intake boost with acceptable boost system parasitis. A practical powertrain system with robust PPCI combustion is needed, including injection, valvetrain, boost, and exhaust subsystems. Resources. —Sellnau et al.

Gasoline 304

Gasoline Engine Fuel Wisconsin 304

Green Car Congress

APRIL 14, 2010

The SuperTurbo’s supercharger function enhances the transient response of a downsized and turbocharged engine, and the turbo-compounding function offers the opportunity to extract the available exhaust energy from the turbine rather than opening a waste gate. Downsizing from a 3.2L The SuperTurbo concept. Click to enlarge.

Waste 218

Waste Engine Downsizing Hybrid 218