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The 2022 FuelEconomy Guide, released by ORNL for the DOE/EPA fueleconomy.gov website, provides up-to-date information on fueleconomy, environmental and safety data, so consumers can choose the most fuel-efficient vehicle that meets their needs. Credit: Andrew Sproles/ORNL, U.S.
A team from the University of Tennessee and the National Renewable Energy Laboratory (NREL) has the fuel savings due to fueleconomy improvements over the past 43 years amount to approximately two trillion gallons of gasoline. Also since 1975, light-duty vehicle travel increased by 134% while fuel use increased by only 37%.
With alternative fuel vehicles now approaching 1% of new vehicle production, however, they are in fact beginning to have a “ measurable and meaningful impact ” on overall new vehicle fueleconomy and CO 2 emissions. In the analysis, EPA uses overall fueleconomy in mpg equivalent (mpge) and tailpipe CO 2 emission values.
Researchers at the US Department of Energy’s Pacific Northwest National Laboratory (PNNL) have developed an onboard separation system that could support increased fueleconomy and lower greenhouse gas emissions as part of an octane-on-demand fuel-delivery system. That’s where PNNL’s onboard separation technology comes in.
Improving fueleconomy exhibits diminishing returns in fuel savings, according to a brief analysis by the US Energy Information Administration (EIA). Similarly, the fuel and cost savings of improving fueleconomy from 12 mpg to 15 mpg are the same as increasing from 30 mpg to 60 mpg.
Researchers at Oak Ridge National Laboratory (ORNL) have quantified the fueleconomy effects of some common driver practices and vehicle accessories or alterations—including underinflated tires, open windows, and rooftop and hitch-mounted cargo. liter four-cylinder engine, also suffered as its fueleconomy dipped 22% from 42.5
Huff Fuels, Engines and Emissions Research Center, Oak Ridge National Laboratory. This website, jointly maintained by the US Department of Energy and the US Environmental Protection Agency (EPA), provides information such as official EPA “window label” fueleconomy estimates for city, highway, and combined driving for all U.S.-legal
EPA recently released the latest edition of its annual report Light-Duty Automotive Technology, Carbon Dioxide Emissions and FuelEconomy Trends. The report found that fueleconomy for the US fleet continues to improve. Model year (MY) 2016 vehicle fueleconomy was 24.7 mpg per year.
Divergence of real-world CO 2 emissions from manufacturers’ type-approval CO 2 emissions for various on-road data sources, including an average estimate for private and company cars as well as all data sources. In total, these sources furnish fuel consumption and CO 2 emission data from more than half a million vehicles.
Researchers at Jilin University (China) have investigated the effect of gasoline components on fueleconomy, combustion and emissions in a GDI (gasoline-direct-injection) engine. The team subsequently followed up this first study with a second, exploring the effects in a PFI (port-fuel-injection) engine. —Han et al.
The US Environmental Protection Agency (EPA) released its annual Automotive Trends Report , which shows that model year (MY) 2021 vehicle fueleconomy remained at a record high—but flat with MY 2020 fueleconomy—while CO 2 emission levels reached a new record low. Source: EPA.
In 2018, 27% of new light-duty vehicles sold in the US had fueleconomies of more than 30 miles per gallon (783 l/100 km), according to the US Department of Energy (DOE). By contrast, none of the light-duty vehicles produced in 1975 had fueleconomy greater than 30 miles per gallon (mpg). In 1995, 4.4% In 2018, 2.4%
Preliminary data in EPA’s 2020 Automotive Trends Report shows average fueleconomy for model year 2020 light-duty vehicles increased to 25.7 If this preliminary data holds, that will be a new record high for average new light-duty vehicle fueleconomy. From 2005–2020 average fueleconomy rose by 29%.
CVVD optimizes both engine performance and fuel efficiency while reducing emissions. The valve control technology regulates the duration of valve opening and closing according to driving conditions, achieving a 4% boost in performance and a 5% improvement in fuel efficiency. The technology cuts emissions by 12%.
Vehicle fueleconomy improvements have slowed globally, according to the latest report from the Global FuelEconomy Initiative (GFEI): FuelEconomy In Major Car Markets: Technology And Policy Drivers 2005-2017. Overall, global fueleconomy has improved by an average of 1.7% L ge /100 km.
New analysis commissioned by Ceres, a sustainability nonprofit organization working with investors and companies, suggests that national fueleconomy and emissions standards can help increase the viability and international competitiveness of domestic automakers and suppliers. The analysis, “ What’s Driving the U.S
Electric vehicles (EVs) will need to increase their combined market share to 16% by 2020 for markets to achieve the aggressive fueleconomy standards set by regulators, according to new research by the World Energy Council, the UN-accredited global energy body representing the entire energy spectrum. In the EU, the EV gap is 1.4
On-road NO x emission levels of Euro 6 diesel cars in Europe are on average about seven times higher than the NO x limit set by the Euro 6 emission standard, according to a new report published in Berlin by the International Council on Clean Transportation (ICCT). Diesel vehicles make up about 50% of all new cars in the EU.
CP’s Hydrogen Locomotive Program will retrofit a line-haul locomotive with hydrogen fuel cells and battery technology to drive the locomotive’s electric traction motors. Line-haul locomotives move freight and passenger cars between yards and terminals.
New cars and trucks are more efficient than ever before, but lax regulations mean they're still much less efficient than they should be, according to the EPA's annual report on emissions and fueleconomy.
Audi is unveiling the third-generation of its TT compact sports car at the Geneva Motor Show. The new sports car can accelerate from 0 to 100 km/h (62 mph) in 7.2 Standard fuel consumption is 4.2 liters per 100 km (56 mpg US), which translates into CO 2 emissions of 110 g/km (177 g/mile). 3 rd generation Audi TT.
However, they also noted, high PTW efficiencies and the moderate fueleconomies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. The study investigated the the WTW energy and emissions from the use of natural gas in CNGVs with a range of CNGV fueleconomy and natural gas compressor efficiency.
The US Environmental Protection Agency (EPA) and US Department of Transportation’s National Highway Traffic Safety Administration (NHTSA) released their long-expected notice of proposed rulemaking (NPRM) to adjust the Congressionally-mandated Corporate Average FuelEconomy (CAFE) and Light-Duty Vehicle Greenhouse Gas Emissions Standards.
In the shadow of the diesel scandal, and just before the official reveal of its first mass-market electric car next week, Volkswagen is facing yet another public reprimand: It’s being ordered by the EPA to revise its fueleconomy estimates applying to about 98,000 vehicles.
Infiniti unveiled the Q80 Inspiration concept car at the 2014 Paris Motor Show, it what it called a signal of its intent to break into the top tier of the premium sedan category; the concept will lead to a future model. mpg US) and CO 2 emissions of about 129 g/km. mpg US) and CO 2 emissions of about 129 g/km. L/100 km (42.8
Volkswagen has developed and deployed a gasoline engine that offers diesel-like fueleconomy but is significantly cheaper to buy. TSI ACT BlueMotion delivers 96 kW / 130 PS with combined fuel consumption of 4.8 This enables further reduced fuel consumption and emission levels plus powerful torque even at low engine speeds.
The gasoline direct injection (GDI) engine is one of the most prominent technologies car manufacturers adopted to achieve the fueleconomy and carbon dioxide emission goals established in 2012 by the US Environmental Protection Agency. The market share of GDI-equipped vehicles increased from 2.3% W/m 2 over urban regions.
l/100 km) in 2016, the The ICCT team assessed increased consumer label fueleconomy (as opposed to the regulatory test fueleconomy) to 35 mpg (6.71 l/100 km) in 2016, the The ICCT team assessed increased consumer label fueleconomy (as opposed to the regulatory test fueleconomy) to 35 mpg (6.71
Top: Gravimetric PM mass, PM mass calculated based on the IPSD method, black carbon, and EC/OC emissions over the LA92 cycle. Bottom: Total particle-phase PAH emissions, expressed in ng/mile, for both test vehicles over the LA92 cycle. In the study, the team used two MY 2016 passenger cars. Yang et al. Click to enlarge.
The US Environmental Protection Agency (EPA) Administrator Scott Pruitt announced the completion of the Midterm Evaluation (MTE) process for the greenhouse gas (GHG) emissions standards for cars and light trucks for model years 2022-2025, and his final determination that the current standards are not appropriate and should be revised.
Lightning Hybrids , a maker of hydraulic hybrid systems for medium- and heavy-duty trucks and buses ( earlier post ), released initial results from emissions testing conducted by an independent testing facility in Colorado of two medium-duty trucks upfitted with the Lighting Hybrids system. With its high average speed(18.9 mph), low 2.1
In a recent collaborative study led by the University of Maryland (UMD), researchers found that consumers tend to buy something less fuel efficient than they normally would for their second car after buying an eco-friendly vehicle. The data revealed multiple trends that correlate with a decrease in overall fueleconomy and efficiency.
Automakers are not reducing the weight of small cars, but instead are prioritizing weight reductions where it offers the most promise to boost fueleconomy and reduce emissions—their larger, heavier cars and trucks. —Mario Greco.
Separately, the Accord Hybrid, also featuring Honda’s new two-motor hybrid system, will launch nationwide next summer with anticipated fueleconomy ratings of 49/45/47 city/hwy/combined (4.8/5.2/5.0 The numerical part of the standard category, such as 20 in SULEV20, refers to the emission standard, in thousandths of a gram per mile.
A provision adopted in 2012 establishes that cars meeting federal standards for model years 2017-2025 are “deemed to comply” with California’s standards. The California Air Resources Board (CARB) yesterday voted to clarify its requirement that automakers must comply with California vehicle standards if they sell vehicles in the state.
safety regulator has officially launched more relaxed fueleconomy standards, following a similar move from the Environmental Protection Agency (EPA) made a few months ago. The National Highway Traffic Safety Administration (NHTSA) has officially announced new fuel standards requiring an average fleet fueleconomy of 50.4
The US Environmental Protection Agency (EPA) released its 28 th annual Inventory of US Greenhouse Gas Emissions and Sinks (GHG Inventory), which presents a national-level overview of annual greenhouse gas emissions from 1990 to 2019. CO 2 emissions decreased 2.2% Total GHG emissions in 2019 were up 1.8% from 2018 to 2019.
Do they receive HOV access for their improved fueleconomy and ultra low emissions? In fact in 6 of the states, diesel fuel is penalized with additional state taxes. So diesel fuel gets taxed twice or penalized twice at the federal and state level. Are these sales incentivized? TDI coming at Frankfurt.
Using this information, the self-adapting i-ART system makes sure that the correct amount of fuel is injected during each combustion cycle. Using this information, the self-adapting i-ART system makes sure that the ideal amount of fuel is injected during each combustion cycle. Diesel Engines Fuel Efficiency' Source: Volvo.
The road transport sector could still reach net-zero emissions by 2050 through electrification, but urgent action would be required from policymakers and industry participants, according to research company BloombergNEF’s (BNEF) latest annual Long-Term Electric Vehicle Outlook (EVO). Last ICE in 2038.
A new brief published by the International Transport Forum (ITF)—an intergovernmental organization at the OECD with 59 member countries— identifies proven measures that decrease road freight’s CO 2 emissions. This will offset any expected efficiency gains and lead to an increase in emissions by 2050, not a reduction.
While oil will remain the most widely used fuel, overall energy demand will be reshaped by a continued shift toward less-carbon-intensive energy source as well as steep improvements in energy efficiency in areas such as transportation, where the expanded use of advanced and hybrid vehicles will help push average new-carfueleconomy to 48 mpg (4.9
The European Union (EU) recently adopted CO 2 emissions mandates for new passenger cars, requiring steady reductions to 95 gCO 2 /km in 2021. The model also includes representation of fleet turnover, and opportunities for fuel use and emissions abatement, including representation of electric vehicles.
Manufacturers like them because they help them pass emissions and newer engines have been designed with tighter tolerances. Theyre also prone toward offering improved fueleconomy and lower emissions, as studied by SAE International. Plenty of these blame aftermarket components being fitted to the car.
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