Exhaust, Fuel Economy, MPG and Study

ORNL study quantifies fuel economy costs of common driver practices and vehicle alterations

Green Car Congress

APRIL 10, 2014

Researchers at Oak Ridge National Laboratory (ORNL) have quantified the fuel economy 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 fuel economy dipped 22% from 42.5

Fuel Economy

Fuel Economy Economy Cost Of Fuel

ORNL researchers quantify the effect of increasing highway speed on fuel economy

Green Car Congress

JANUARY 18, 2013

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” fuel economy estimates for city, highway, and combined driving for all U.S.-legal drop in fuel economy due to traveling 80 mph rather than 70 mph.

Fuel Economy

Fuel Economy Economy Fuel MPH

ICCT: incremental technology can cut vehicle CO2 by half and increase fuel economy >60% through 2030 with ~5% increase in price

Green Car Congress

MARCH 22, 2017

Starting from a baseline 26 mpg (9.04 l/100 km) in 2016, the The ICCT team assessed increased consumer label fuel economy (as opposed to the regulatory test fuel economy) to 35 mpg (6.71 l/100 km) in 2025 and to 42–46 mpg (5.6-5.11 Starting from a baseline 26 mpg (9.04

Fuel Economy

Fuel Economy Economy Fuel Price

Tula Technology reports up to 18% fuel economy gain in GM 6.2L V8 using Dynamic Skip Fire technology; emissions benefits too

Green Car Congress

APRIL 25, 2016

In a paper presented at the 2016 SAE World Congress, Tula Technology, developer of Dynamic Skip Fire (DSF) cylinder deactivation technology, reported significant fuel economy gains of up to 18% over a conventional GM 6.2-liter mpg at DSF versus 17.34 mpg at V8 mode. Meaning, DSF reduces fuel consumption by 14-18% over V8.

Fuel Economy

Fuel Economy Economy GM GMC

J.D. Power and Associates study finds EPA emission-compliant heavy-duty engines yielding increase in engine problems, decline in satisfaction

Green Car Congress

AUGUST 23, 2012

Technology changes related to revised emissions standards for heavy-duty trucks are causing an increase in heavy-duty truck engine problems and a decrease in overall satisfaction with the powertrain, according to the JD Power and Associates 2012 US Heavy-Duty Truck Engine and Transmission Study. mpg in 2011. Overall Scores.

Engine

Engine EPA Emissions Power

Ford / AVL study concludes mid-level ethanol blend attractive as a long-term future fuel for use in optimized engines in US

Green Car Congress

APRIL 19, 2013

A study by a team from Ford Motor Company and AVL has concluded that a mid-level ethanol blend—greater than E20 but less than E40—appears to be attractive as a long-term future fuel for the US for use in engines optimized for the higher octane blend. Volumetric fuel economy. Earlier post.) Earlier post.).

Engine

Engine Fuel Ford Future

U Toronto team assess the climate trade-off between reduced CO2 and increased Black Carbon from GDI engines

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.,

Climate

Climate Engine Carbon Fuel Economy

2017 Chrysler Pacifica wins Altair Enlighten Award for weight reduction in full vehicle category; Toyota, Faurecia and AP&T module, technology winners

Green Car Congress

JULY 31, 2017

Toyota’s carbon fiber closure panels for the 2017 Prius Prime and Lexus LC500 ( earlier post ), and Faurecia’s Adaptive Valve for exhaust systems employed on the 2017 Chevrolet Silverado took the top honors for the module category. Weight reduction is a key contributor to improved fuel economy. 2017 Chrysler Pacifica.

Chrysler

Chrysler 2017 Toyota Minivan

GM details 2016 Chevrolet Malibu Hybrid powertrain design and operation

Green Car Congress

APRIL 18, 2016

The 2016 Chevrolet Malibu Hybrid ( earlier post ) is EPA-rated at 46 mpg (5.11 The 2016 Chevrolet Malibu Hybrid ( earlier post ) is EPA-rated at 46 mpg (5.11 Development was guided by four main objectives: Increased fuel efficiency under US EPA 5 cycle fuel economy test conditions. Features of the new 1.8-liter

Malibu Hybrid

Malibu Hybrid 2016 Chevrolet Design

Study finds V2G-capable electric school buses cost-effective with current technology; financial and environmental benefits

Green Car Congress

MAY 29, 2014

Electric school bus fleets with vehicle-to-grid (V2G) capabilities are cost-effective with today’s technology, and could save schools money while reducing greenhouse gas emissions and improving public health, according to a new study by a team at the University of Delaware’s College of Earth, Ocean, and Environment (CEOE).

Fleet

Fleet Electric Electrical Climate Change

Audi banking on Gen 2 3.0L TDI diesel for US sales; calls for a “fair shot” for diesel

Green Car Congress

AUGUST 23, 2013

Do they receive HOV access for their improved fuel economy 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. Changes in the exhaust manifolds and turbo from Gen 1 to Gen 2.

Diesel

Diesel Audi Sale Fuel Economy

CPT/AVL Study: New Generation of Micro-Hybrid Technologies Can Enable More than 25% Reduction in Fuel Consumption at Lower Cost Than Full Hybrid Drive Systems

Green Car Congress

SEPTEMBER 13, 2010

Based on a VW Passat family-sized saloon, the demonstrator currently incorporates a advanced, AVL-developed 2-liter gasoline engine already delivering a fuel consumption of 6.6 liters/100km (36 mpg US) and CO 2 emissions of 154g/km—a 20% reduction from the 192 g/km of a series production Passat (MY 2006) fitted with a 2.0L

VRLA

VRLA Hybrid Downsizing Fuel

Toyota previews Prius v; first expansion of planned Prius family

Green Car Congress

MAY 24, 2011

The Prius plug-in hybrid (PHV), to be released next year, and a low-cost compact hybrid based on the Prius C design study ( earlier post ), to be introduced sometime afterward, will constitute the Prius family’s third and fourth vehicles, respectively. L/100km / 5.88 L/100km / 5.6 L/100km).

Prius

Prius Toyota North America MPG

National Academies release third review of the 21st Century Truck Partnership

Green Car Congress

SEPTEMBER 14, 2015

researching, validating, and deploying technologies and methods that save fuel through more efficient operations of trucks and transportation systems. researching, validating, and deploying technologies and methods that save fuel through more efficient operations of trucks and transportation systems. mpg result, the LSFC was 4.85

MPG

MPG Miles 2009 Fuel

Advantage EV

Electric Auto Association

JANUARY 5, 2023

In Department of Energy fuel economy tests, in short-trip city driving, a conventional gasoline car’s gas mileage is about 12 percent lower at 20 degrees Fahrenheit than it would be at 77 degrees Fahrenheit and can drop as much as 22 percent for very short trips of around 3 to 4 miles. Electric vehicles are popular in cold climates.

Gas-Electric

Gas-Electric Gas Norway F-150

Transonic demonstrates supercritical gasoline operation under low load, medium load, and high speed low load conditions; simulated vehicle fuel economy of 48.8 mpg

Green Car Congress

MAY 4, 2012

Using engine test data, Transonic simulated vehicle fuel consumption for a vehicle over the NEDC drive cycle using a 4-cylinder, 1.6L Predicted fuel economy for such a vehicle equipped with the TSCi system was 48.8 mpg US (4.8 mpg US/5.05 port fuel injected spark ignition engine (39.1 mpg US/6.0

Fuel Economy

Fuel Economy Gasoline MPG Economy

Update on the ACCESS fuel efficient engine project; simulations find up to 48.9% improvement in fuel economy over baseline

Green Car Congress

MAY 8, 2013

Especially with increased production volume of renewable fuels and optimized powertrain solutions for flexible fuel vehicles, there is a chance for combustion engines to not only remain in the market but also be sustainable for future vehicle. Combustion studies. improvement in fuel economy over the baseline.

Fuel Economy

Fuel Economy Economy Fuel Engine

FEV analysis of automotive-scale Pinnacle opposed-piston engine finds potential for significant increases in fuel economy

Green Car Congress

MAY 15, 2013

An analysis by FEV of a modeled automotive scale version of Pinnacle’s 4-stroke, spark-ignited (SI), opposed-piston, sleeve-valve architecture engine ( earlier post ) concluded that the engine has the potential to deliver significant additional fuel economy benefits of up to 42.6% Fuel economy. mpg US (6.3

Fuel Economy

Fuel Economy Economy Engine Downsizing

Researchers propose evaluating alt fuel efficiency based on energy rather than volume; impact of ethanol on vehicle efficiency and GHGs

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

Fuel Energy Gasoline-Electric Gasoline

Cummins progressing toward ATLAS Tier 2 Bin 2 fuel-efficient diesel for light-duty pickups

Green Car Congress

MAY 10, 2013

Fuel economy targets for the vehicle are 22.4 mpg US (10.5 mpg US (6.9 The upfitted Titan was tested on a chassis dyno to establish baseline emissions, performance and fuel economy for FTP-75, LA-4 and HFET drive cycles. AN exhaust throttle and LP EGR valve work together to control mass flow rate.

Light

Light Diesel Fuel Fuel Economy

Achates: LD opposed-piston, 2-stroke diesel can meet 2025 final CAFE, Tier 3 standards for full-size pickup; 30% better FE than Cummins ATLAS

Green Car Congress

APRIL 15, 2014

the developer of a family of two-stroke compression-ignition opposed-piston engines ( earlier post ), has performed an in-depth study on the performance and emissions of light-duty version of its engine packaged for a full-size pickup truck. For the study, Achates Power modeled a 2.25-liter, Source: Achates Power. Click to enlarge.

Diesel

Diesel Fuel Economy Standards Engine

Achates Power building 2.7L opposed-piston light-duty engine; exceeding CAFE 2025, Tier 3 targets at lower cost

Green Car Congress

JANUARY 13, 2017

liter compression-ignition OPE will will be 30-50% more fuel efficient than comparable diesel and gasoline direct injection engines, reduce emissions and cost less than alternative technologies under development for meeting 2025 CAFE fuel economy and Tier 3 emission targets. The new Achates Power 2.7-liter

Light

Light Engine Power Powered

DOE to award up to $9M for Small Business programs in broad range of technologies including vehicles, biomass and hydrogen and fuel cells

Green Car Congress

APRIL 10, 2012

EERE’s Vehicles Technologies Program (VTP) is focused on developing technologies to enable average new vehicle fuel economy of more than 60 mpg (3.9 L/100 km) for cars and more than 43 mpg (5.5 Exhaust Aftertreatment Materials. L/100 km) for trucks by 2025. Advanced Battery Consortium (USABC).

Hydrogen

Hydrogen Fuel Range Vehicles

BMW’s “CO2 Champion” Performance Concept is a Plug-in Diesel Hybrid; 50 km/31 mile All-Electric Range; Thermo-electric Generator for Waste Heat Recovery

Green Car Congress

AUGUST 30, 2009

BMW Vision EfficientDynamics is neither a mere variant of a production car built for maximum efficiency nor a purely visionary study completely separated from series development. Applying the criteria of the EU test cycle currently prescribed by law, BMW Vision EfficientDynamics offers projected average fuel consumption of 3.76

All-Electric

All-Electric Plug-in Concept Plug

Audi highlights its range of electrification efforts; Q7 diesel PHEV, A7 fuel cell PHEV, BEV, 48V and more; 750 Wh/l by 2025

Green Car Congress

NOVEMBER 17, 2015

liters of fuel per 100 kilometers (138.4 US mpg) in the New European Driving Cycle (NEDC), corresponding to 46 grams CO 2 per km (74.0 For example, fuel economy statistics and a graphic display of the electric range is shown on the navigation map. The concept study offers sports car-like performance.

Audi

Audi PHEV Diesel Fuel

EV Driven

ORNL study quantifies fuel economy costs of common driver practices and vehicle alterations

ORNL researchers quantify the effect of increasing highway speed on fuel economy

ICCT: incremental technology can cut vehicle CO2 by half and increase fuel economy >60% through 2030 with ~5% increase in price

Tula Technology reports up to 18% fuel economy gain in GM 6.2L V8 using Dynamic Skip Fire technology; emissions benefits too

J.D. Power and Associates study finds EPA emission-compliant heavy-duty engines yielding increase in engine problems, decline in satisfaction

Ford / AVL study concludes mid-level ethanol blend attractive as a long-term future fuel for use in optimized engines in US

U Toronto team assess the climate trade-off between reduced CO2 and increased Black Carbon from GDI engines

2017 Chrysler Pacifica wins Altair Enlighten Award for weight reduction in full vehicle category; Toyota, Faurecia and AP&T module, technology winners

GM details 2016 Chevrolet Malibu Hybrid powertrain design and operation

Study finds V2G-capable electric school buses cost-effective with current technology; financial and environmental benefits

Audi banking on Gen 2 3.0L TDI diesel for US sales; calls for a “fair shot” for diesel

CPT/AVL Study: New Generation of Micro-Hybrid Technologies Can Enable More than 25% Reduction in Fuel Consumption at Lower Cost Than Full Hybrid Drive Systems

Toyota previews Prius v; first expansion of planned Prius family

National Academies release third review of the 21st Century Truck Partnership

Advantage EV

Transonic demonstrates supercritical gasoline operation under low load, medium load, and high speed low load conditions; simulated vehicle fuel economy of 48.8 mpg

Update on the ACCESS fuel efficient engine project; simulations find up to 48.9% improvement in fuel economy over baseline

FEV analysis of automotive-scale Pinnacle opposed-piston engine finds potential for significant increases in fuel economy

Researchers propose evaluating alt fuel efficiency based on energy rather than volume; impact of ethanol on vehicle efficiency and GHGs

Cummins progressing toward ATLAS Tier 2 Bin 2 fuel-efficient diesel for light-duty pickups

Achates: LD opposed-piston, 2-stroke diesel can meet 2025 final CAFE, Tier 3 standards for full-size pickup; 30% better FE than Cummins ATLAS

Achates Power building 2.7L opposed-piston light-duty engine; exceeding CAFE 2025, Tier 3 targets at lower cost

DOE to award up to $9M for Small Business programs in broad range of technologies including vehicles, biomass and hydrogen and fuel cells

BMW’s “CO2 Champion” Performance Concept is a Plug-in Diesel Hybrid; 50 km/31 mile All-Electric Range; Thermo-electric Generator for Waste Heat Recovery

Audi highlights its range of electrification efforts; Q7 diesel PHEV, A7 fuel cell PHEV, BEV, 48V and more; 750 Wh/l by 2025

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