This site uses cookies to improve your experience. To help us insure we adhere to various privacy regulations, please select your country/region of residence. If you do not select a country, we will assume you are from the United States. Select your Cookie Settings or view our Privacy Policy and Terms of Use.
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Used for the proper function of the website
Used for monitoring website traffic and interactions
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Strictly Necessary: Used for the proper function of the website
Performance/Analytics: Used for monitoring website traffic and interactions
Optimized fuel properties with regard to different emissions Janssen et al. Thus, soot emissions can be reduced significantly while HC and CO emissions are not negatively affected. In order to reduce HC and CO emissions at low engine loads, fuels with a shorter ignition delay are appropriate. Click to enlarge.
The transportation sector was responsible for over 7 million tons of NO x emissions in the US in 2014, with 50% of this sector’s NO x attributed to heavy-duty on- and off-road vehicles and equipment. CO 2 and NO x certification test data for heavy-duty diesel engines certified from 2002 through 2019. Source of data: US EPA (2019).
The researchers assessed the gaseous, particulate, and genotoxic pollutants from two current technology gasoline direct injection vehicles when tested in their original configuration and with a catalyzed gasoline particulate filter (GPF). Their study is publishedin the ACS journal Environmental Science & Technology. Yang et al.
The US Environmental Protection Agency (EPA) and the US Department of Transportation (DOT) formally unveiled their joint proposal to set stronger fuel economy and greenhouse gas pollution standards for Model Year 2017-2025 passenger cars and light trucks. mpg US (5.87 L/100km) in model year 2021, and 49.6 L/100km) in model year 2025.
In its sixth sales-weighted analysis of emissions from 8 major automakers’ 2013 model year vehicles, the Union of Concerned Scientists’ (UCS) latest Automaker Rankings report found that Hyundai-Kia unseated Honda as the “Greenest Automaker.” Click to enlarge. Source: UCS. Click to enlarge.
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.) Achates compression-ignition OP2S. Earlier post.).
However, prior to the remarks on climate change and the regulatory response, he spent a few minutes discussing the efforts on urban pollution—e.g., What more is need to end urban pollution, something we’ve been spending over 30 years working on? Comparison of Emission Standards (g/mi). . SULEV/Tier 2 Bin 2 is the target.
The new Twin-Air engine is an example of downsizing: combining a small displacement engine with a next-generation turbocharger to provide performance comparable to—or better than—that of a larger engine but with less fuel consumption and lower emissions.
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.
Pollutantemissions are likewise reduced through combustion control. Applied to a turbocharged, downsized engine, MultiAir can contribute to up to a 25% reduction in fuel consumption over conventional naturally aspirated engines with the same performance, according to Fiat.
Renault’s ongoing downsizing strategy is aimed at reducing the cubic capacity of its engines in order to bring down fuel consumption and CO 2 emissions, without detracting from performance. Specific engine-mapping aimed at reducing fuel consumption and CO 2 emissions. Select Engines. New-generation 1.5 dCi engines. liter engine.
liters/100 km on rear-wheel drive models) and lower CO 2 emissions (down by an average 10%), together with 30 N·m more torque and the best cost in use in its category. Renault is thus pursuing its downsizing strategy of reducing engine displacement—and, hence, CO 2 emissions and fuel consumption—while maintaining performance.
Combined with the innovative NANOSLIDE ( earlier post ) cylinder bore coating technology and the aluminum housing, the advantages of the shift include lower fuel consumption and CO 2 emissions. The result is lower fuel consumption and pollutantemissions. This is particularly advantageous for further downsizing concepts.
The PureTech engines offer equivalent or better power compared with the previous generation powerplants, combined with significantly lower fuel consumption and greenhouse gas emissions, down by roughly 25%. mpg US) and CO 2 emissions range from 99 to 107 g/km. One, it reduces CO 2 emissions, which are higher when the engine is cold.
Yesterday, the US Environmental Protection Agency (EPA) and the National High Traffic Safety Administration (NHTSA) jointly established increasingly stringent greenhouse gas emission standards under the Clean Air Act for 2012 through 2016 model-year vehicles and fuel economy standards under the Corporate Average Fuel Economy program, respectively.
To meet long-term greenhouse gas emissions targets as well as air quality objectives, the internal combustion engine will be further improved, being accompanied by the development and progressive implementation of breakthrough technologies, such as electrified propulsion. implement the 2020 CO 2 targets for cars and vans.
The more efficient combustion engine technologies, with their enabling of downsizing, come in compatibly with hybridization, with hybridization and electrification playing a larger role over time. The further downsized next-generation technologies can be very synergistic within hybrid applications. Planning background.
Our policy leaders continue to pursue prescriptive technology policies in the hopes of solving all of our energy and emissions problems. The quickest and most cost-effective way to achieve our energy usage goals is through faster adoption of fuel-efficient downsized gasoline and diesel engines.
Many countries propose to impose more stringent regulation of automobile exhaust emissions in 2020 and after, in an effort to prevent air pollution and global warming.
Based on test work already carried out, Ricardo estimates that a fuel economy improvement of up to 30% is possible with no loss of power or performance, using a downsized EBDI engine in place of currently available gasoline powertrain technology. liter EBDI engine—resulting in up to a 16.8% fuel economy improvement.
With direct control of the air through the intake engine valves without using the throttle, MultiAir helps reduce fuel consumption and pollutantemissions. up to 25% fuel savings on Turbo downsized versions. Compared to a traditional gasoline engine with the same displacement, MultiAir engines offer : up to 10% more power.
One of the issues for the industry to confront in moving away from the NEDC test is that the WLTP typically halves the measurement of CO 2 reduction gained from first generation stop-start systems, which characteristically reduce CO 2 emissions on the NEDC by 5%. This reduces to 2.5% when measuring the same vehicle on the WLTP.
The selected projects will focus on reducing the total cost of ownership of NGVs, increasing vehicle efficiency, decreasing local air pollution, and advancing technology development to increase the use of more affordable medium- and heavy-duty natural gas engines and vehicles. Cummins Inc.
Freescale Semiconductor announced the first of several powerful multicore automotive MCUs that help automotive designers improve engine efficiency and reduce exhaust pollution. Click to enlarge. Block diagram of the chip. Click to enlarge.
Dearman has begun on-vehicle testing of the Generation 2 zero-emission transport refrigeration system. As a result, the Dearman system is zero-emission, producing no harmful NO x or particulates, and it helps to significantly reduce CO 2 emissions. The only emission back to the atmosphere is air or nitrogen.
It is a high octane fuel with combustion characteristics that allow engines specifically designed for methanol fuel to match the best efficiencies of diesels while meeting current pollutantemission regulations. It is a safe fuel. The toxicity (mortality) is comparable to or better than gasoline.
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. CO 2 vs. BC) to ensure that integration of GDI vehicles will result in a net reduction of CO 2 -equivalent emissions.
The US Department of Energy (DOE) will award up to $7 million in project funding to accelerate the introduction of affordable, scalable, and sustainable high-performance fuels for use in high-efficiency, low-emission engines as part of the Co-Optimization of Fuels and Engines (Co-Optima) initiative. Earlier post.).
This year’s forecast recognizes an industry trend for slightly bigger engine sizes in Europe and China as automakers adapt powertrain strategies to tackle updated emissions regulations developed for real-world driving conditions. Regional highlights include: In North America, more engine downsizing is expected. liters and 1.7
Under current European Union regulations, average new car CO 2 emissions must decrease from the present 120 grams per kilometer (g/km) to 95 g/km by 2021. Deploying the full range of combustion engine technologies, including hybrid electric vehicles, would be sufficient to reduce the fleet average CO 2 emissions to 70 g/km, the study found.
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.
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. Simulation of fuel and engine parameter impacts on efficiency and emissions. Fuel impacts on particulate emissions. Modeling and Simulation Toolkit.
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. to 41 mpg by 2021 and 48.7 mpg by 2025. Recommendations.
It directly controls the air thanks to intake engine valves without using the throttle, and therefore helps reduce both fuel consumption and pollutantemissions. MultiAir involves an electro-hydraulic valve timing system that provides dynamic and direct control of both air and combustion, cylinder by cylinder and stroke by stroke.
The California Air Resources Board adopted amendments to help business owners comply with its 2007 regulation aimed at reducing toxic diesel emissions from the state’s estimated 180,000 off-road vehicles such as tractors and bulldozers used in construction, mining and other industries. Earlier post.). ARB Chairwoman Mary D.
With the amended regulations in place, diesel particulate matter emissions will be reduced from today’s levels by 50% by 2014 and 70% by 2020, according to ARB. No other state, and no other nation has such an extensive set of rules to slash pollution from diesel engines. forklifts). —ARB Chairman Mary D. Off-Road (e.g.,
The objections they raised for years -- "no one is interested, no one would plug in, the technology is too complex, the benefits are minimal, its just shifting the pollution from the tailpipe to the smokestack, theres no demand for these cars" -- still show up occasionally, but are by and large history.
It sounds like you’re saying that only “some&# scientists think weaning us off coal is the single most crucial thing we must do to cut the greenhouse gas emissions that are driving us to a climate catastrophe. Because that sure doesn’t sound like what you’re saying. Why is their environmental coverage so lame?
The alternative-fuel car evolved to reduce exhaust emissions and other problems derived from burning fossil fuels. Since it can operate on 100% biofuel, it is the means for achieving new goals recently set for reducing the use of fossil fuels and cutting the net emission of CO 2 to zero. by Professor Andrew Alfonso Frank.
President Barack Obama’s national fuel efficiency standards in the USA have come in for criticism in The Wall Street Journal where a columnist points out that there could be severe costs in terms of urban air pollution and human life.
Michael Leiters , who was Ferrari’s chief technology officer (he recently left the company), says there’s no denying that electrification in the car industry is largely being driven by the need to comply with strict emissions regulations, including for carbon dioxide.
utilizing these ideas and instructions in an attempting to enhance national security, reduce gas consumption, vehicle "emissions", your carbon footprint, or smog, you do so at your own risk & peril. Warranty: In performing some of these modifications you may void your warranty with the vehicles manufacturer.
The Environmental Protection Agency (EPA) recently released a detailed proposal designed to strengthen greenhouse gas emissions standards for light-duty vehicles. The use of footprints to determine fleet emission targets removes any incentive for an automaker to reduce the size of the vehicles it offers.
We organize all of the trending information in your field so you don't have to. Join 5,000+ users and stay up to date on the latest articles your peers are reading.
You know about us, now we want to get to know you!
Let's personalize your content
Let's get even more personalized
We recognize your account from another site in our network, please click 'Send Email' below to continue with verifying your account and setting a password.
Let's personalize your content