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

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

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

AUGUST 11, 2014

GMZ Energy and its partners are on track to deliver a 1 kW thermoelectric generator (TEG) for the Bradley Fighting Vehicle as well as to design and to integrate a light-duty vehicle TEG into a Honda Accord as part of a DOE-funded project. In June, GMZ successfully generated 270 watts from a TEG as part of $1.5-million Earlier post.).

Honda 231

Honda Houston North America Vehicles 231

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

MARCH 20, 2013

While numerous fully variable valvetrain strategies are possible depending upon the application, other studies have highlighted the use of Early Intake Valve Closing (EIVC) as a favorable strategy at part load, the authors noted. The researchers also noted the significant global interest in alcohol fuels for SI engines. 2012.10.041.

Gasoline 225

Gasoline Exhaust Downsizing Engine 225

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

APRIL 14, 2011

Efforts on combustion initiation in pre-chamber cavities in spark ignition engines reaches back to the 2-stroke Ricardo Dolphin engine in the first part of the twentieth century. Continuously variable camshaft phasers for both the intake and exhaust enabled variable valve timing. Background. —Attard et al.

Fuel Economy 210

Fuel Economy Economy Engine Fuel 210

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. Part-load CO 2. Earlier post.) Earlier post.).

Engine 253

Engine Fuel Ford Future 253

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

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

AUGUST 25, 2015

fuel with higher ethanol content—for part- and full-load operation for different engine types and fuel assumptions. 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.

Engine 150

Engine Fuel GM Ford 150

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

FEBRUARY 10, 2014

However, CAI combustion is usually restricted to part-load operation conditions because of its combustion mechanism and lack of effective means of control. To minimize the air short-circuiting rate, the intake and exhaust valve timings were adjusted. GM’s ongoing work, earlier post ). Earlier post , earlier post.).

Gasoline 186

Gasoline Engine Exhaust Fuel 186

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

AUGUST 4, 2009

The central part of the method is a new fuel system including high-temperature fuel injectors and a common rail to deliver SC fuel-diluent mixtures for combustion over ranges of conditions which will significantly improve engine efficiency, reduce PM and NO x and mitigate the environmental thermal impact. Anitescu et. Energy & Fuels 2009.

Diesel 225

Diesel Fuel Emissions 2009 225

Green Car Congress

APRIL 24, 2012

The test engine for the paper was a 250cc single-cylinder unit with dual-camshaft-actuated reciprocating sleeve valves for induction and exhaust. Although delayed spark timing reduces engine efficiency at high loads, the compromise to improve part-load efficiency is beneficial to vehicle mileage, Pinnacle says. Click to enlarge.

Light 304

Light Fuel Economy Engine Fuel 304

Green Car Congress

DECEMBER 20, 2009

As part of an aggressive deployment strategy for improving fuel efficiency across its product line-up in the near-to medium-term, Ford will offer its first-generation turbocharged, gasoline direct-injection EcoBoost engines ( earlier post ) in 90% of its product lineup by 2013. Click to enlarge. Planning background. Click to enlarge.

Fuel Economy 186

Fuel Economy Economy Ford Downsizing 186

Green Car Congress

MARCH 27, 2015

We are thrilled with the positive results, and are honored to have been part of the program. 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. mpg (19.26

2009 150

2009 Engine Detroit Oregon 150

Green Car Congress

NOVEMBER 28, 2016

In an informational webinar in September, John Farrell, Laboratory Program Manager—Vehicle Technologies, National Renewable Energy Laboratory, and part of the Co-Optima leadership team observed that: Put most simply, the Co-Optima goal is to introduce better fuels and better vehicles sooner. — Robert Wagner. Earlier post.)

Engine 150

Engine Fuel Vehicles Emissions 150

Green Car Congress

MAY 17, 2013

As part of their study, the authors touched on several promising technology pathways that might better utilize the favorable properties of ethanol. Credit: ACS, Yan et al. Click to enlarge. Future potential for ethanol optimization. Lean boosted engines with ethanol can produce efficiency higher than that offered by diesel engines.

Fuel 210

Fuel Energy Gasoline-Electric Gasoline 210

Green Car Congress

NOVEMBER 23, 2011

Given the “virtual” nature of the Partnership among 4 agencies and 15 industrial partners, the projects that are considered to be part of 21CTP should be better defined and, if part of the Partnership, indicated by a 21CTP notation in any 21CTP documentation, the report said. Recommendation 3-7. HYBRID VEHICLES. Recommendation 4-3.

EPA 199

EPA Fuel Engine Hybrid 199

Green Car Congress

APRIL 29, 2009

Ford’s turbocharged, gasoline direct injection EcoBoost engines are targeted to play a significant near-term role in Ford’s efforts to reduce fuel consumption by enabling downsizing. Achieve fuel-air mixing homogeneity equivalent to its naturally-aspirated (NA) counterpart at part-load conditions to ensure fuel economy targets.

Ford 199

Ford 2009 Engine Davis 199

Cars That Think

MARCH 29, 2022

Automakers are finding it difficult to challenge those boldface numbers with internal combustion alone, especially as engines are relentlessly downsized to meet regulations. Ferrari Ferrari, for its part, refuses to sacrifice its fabled handling and sensations on the electric altar. A jaw-dropping weight-to-power ratio of 1.57

Plug-in 87

Plug-in Ferrari Engine Hybrid 87

Green Car Congress

OCTOBER 8, 2013

Based on these engine studies, they installed a downsized four-cylinder 1.6-liter There is potential for reducing after-treatment cost (specifically the de-NO x catalyst) since the Euro6 NO x level can be met at the engine exhaust. Kalghatgi, G., Adomeit, P.

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 car can refuel during periods of low demand on the grid, and if equipped with a bi-directional charger, can actually replenish the grid with excess energy gleaned from a renewable resource. It is much more than that.

PHEV 150

PHEV Plug-in Renewable Energy 150