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vehicle fueleconomy. Specifically, this study examines actual fueleconomy of cars and light trucks (pickup trucks, SUVs, and vans) from 1966 through 2019. (My Calculated vehicle fueleconomy is available going back to 1923. In comparison, the change between 2008 and 2019 (from 4.59
vehicle fueleconomy. Specifically, this study examines actual fueleconomy of cars and light trucks (pickup trucks, SUVs, and vans) from 1966 through 2017. Calculated vehicle fueleconomy is available going back to 1923. In comparison, the change between 2008 and 2017 (from 4.59 mpg for both years).
Laboratory and in-use fueleconomy results Source: NREL. The NREL team collected and analyzed in-service fueleconomy, maintenance, and other vehicle performance data on 11 hybrid (P100H) and 11 conventional diesel (P100D) step vans operated by the United Parcel Service (UPS) in Minneapolis. Click to enlarge.
From left to right: EV, PHEV, gasoline/diesel, gasoline/diesel. The US Department of Transportation (DOT) and the US Environmental Protection Agency (EPA) are jointly proposing changes to the fueleconomy labels consumers see on the window of new vehicles in dealer showrooms. Color is integral to the new schemes.
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 drop in fueleconomy due to traveling 80 mph rather than 70 mph.
Laboratory and in-use fueleconomycomparison. higher fueleconomy than the conventional tractors, resulting in a 12% reduction in fuel costs for the hybrids. higher fueleconomy than the conventional tractors, resulting in a 12% reduction in fuel costs for the hybrids. Source: NREL.
Audi of America introduced four new TDI clean diesel models for the US market this year—the Audi A8, A7, A6, Q5—along with an updated Q7 TDI, all equipped with a second-generation 3.0L V6 TDI diesel engine. ” One of our primary goals and objectives is to level the playing field for clean diesel vehicles.
TCO for selected gas and diesel vehicles over a 3 year timeframe. Diesel vehicles generally saved owners between $2,000 to $6,000 in total ownership costs during a three to five year period when compared to similar gasoline vehicles, according to data compiled by the University of Michigan Transportation Research Institute (UMTRI).
Fueleconomy was similar between the gHEVs and diesel vehicles, except for the highest kinetic intensity drive cycle where the hybrid exhibited ~20% higher fueleconomy. NREL used six similar trucks for the evaluation project: three Azure Dynamics Balance hybrids, and three diesels (Freightliner MT-45).
The chart shows heat release from a standard diesel combustion cycle (solid black line), overlaid with the heat release from a TSCi cycle (dashed blue line). Researchers at Syracuse University are working on a method to prepare, inject and combust supercritical dieselfuel. Source: Transonic. Click to enlarge. Earlier post.).
Pinnacle says the engine achieves 30-50% better fueleconomy in various drive cycle comparisons without the large cost penalty that can be associated with significant fueleconomy improvement. The Pinnacle engine is based on a four-stroke, spark-ignited (SI), opposed-piston, sleeve-valve architecture.
UPS van fueleconomycomparison. UPS’ first-generation diesel hybrid delivery vans improved the on-road fueleconomy by 28.9% Both the Freightliner hybrid model and the conventional model use a Mercedes-Benz MBE 904 four-cylinder diesel engine. greater than the diesel van group’s 10.2
Porsche is consistently targeting improving fueleconomy with each model change. Depending on the model, the savings achieved by all currently available model series in comparison with the corresponding predecessors lie in the double-digit percentage range while simultaneously offering significantly increased performance.
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 Currently applied in the new Golf and Golf Variant ( earlier post ), the 1.5 l/100 km (49 mpg US).
Drivers of diesel vehicles can save thousands of dollars in total ownership costs compared to similar gasoline vehicles, according to a University of Michigan Transportation Research Institute (UMTRI) study. —UMTRI researcher Bruce Belzowski. Belzowski and UMTRI colleague Paul E. Among their findings:??.
Researchers from Southwest Research Institute (SwRI) and Eaton have demonstrated the application of downspeeding and supercharging a diesel vehicle, in conjunction with optimizing transmission gear ratios and the shift schedule, to deliver a greater improvement in fueleconomy than a downsped and turbocharged configuration.
MY 2012 adjusted fueleconomy is 23.6 mpg fueleconomy improvement from MY 2011 to MY 2012 is the second largest annual improvement in the last 30 years. l/100 km) fueleconomy, which, if achieved, will again represent all-time records. Click to enlarge. l/100 km), which is 1.2 mpg, or 22%. Click to enlarge.
Tula Technology is presenting its diesel Dynamic Skip Fire (dDSF) technology ( earlier post ) at the 4 th Future Diesel Powertrain Summit China 2020 on 24-25 September 2020 in Shanghai, China. Comparison of baseline and dDSF CO 2 and NO x on HD FTP cycle and LLC. dDSF Simulation Project. Source: Tula.
Mercedes-Benz announced that seven new versions of the Mercedes-Benz A-, B- and CLA-Class now offer enhanced fuel savings compared with their respective predecessors. Additionally, the A 200 CDI 4MATIC and A 220 CDI 4MATIC represent the first all-wheel-drive diesel models forming part of the new generation of compact cars from Mercedes-Benz.
EU-funded scientists developed a novel 320 kW (429 hp) diesel engine for light helicopters as an alternative to conventional turboshaft engines. The technology demonstrated substantial reductions in fuel consumption and emissions. The engine weight is the crux of the project. —DELILAH final report.
The study found that TCO for electric and diesel medium-duty urban delivery trucks were similar. Researchers at Georgia Tech have compared medium-duty (MD) electric and diesel urban delivery trucks in terms of life-cycle energy consumption, greenhouse gas (GHG) emissions, and total cost of ownership (TCO). Credit: ACS, Lee et al.
in May, while dieselfuel declined 7%, according to the latest figures from the California Board of Equalization (BOE). A month-to-month comparison shows that gasoline consumption rose 3.5% May 2009 dieselfuel sold for use on California roads totaled 209 million gallons of diesel. per gallon.
Opel is introducing a new advanced diesel in the Grandland X compact sport utility vehicle (SUV). liter, four-cylinder, turbocharged diesel is more powerful and more economical than the engine it replaces. WLTP measurements converted to NEDC values for comparison purposes.) The new engine is equipped with fuel-saving Start/Stop.
In a policy update, the International Council on Clean Transportation (ICCT) reports that Japan’s Ministry of Land, Infrastructure, Transport and Tourism (MLIT) and Ministry of Economy, Trade, and Industry (METI) have finalized new proposed fueleconomy standards for light- and medium-duty commercial vehicles with gross vehicle weights less than 3.5
Volkswagen has introduced a new version of the Golf GTD (“Gran Turismo Diesel”) in Europe, and plans to bring it to the US market, reportedly likely for the 2016 model year. diesel delivering 184 horsepower (137 kW), 280 lb-ft (380 N·m) of torque, CO 2 emissions of 109 g/km, and a NEDC combined fueleconomy figure of 56 mpg US (4.2
The 2015 CR-V features increased EPA fueleconomy ratings of 27/34/29 mpg (8.7/6.9/8.1 CR-V in Europe: new diesel and 9-speed. liter i-DTEC four-cylinder diesel engine from Honda’s Earth Dreams Technology series replaces the previous 2.2 liter i-DTEC diesel. liter i-DTEC diesel. A higher powered 1.6-liter
A new report highlights the results of research work carried out by Ricardo and TRL on behalf of the UK Department for Transport, exploring the means by which improvements in dieselfuel efficiency could be realized within the rail network of Great Britain. Potential fueleconomy benefit over baseline is 30% on the freight duty cycle.
miles per diesel gallon equivalent (mpdge). The CNG buses had an average fueleconomy of 3.89 However, because Foothill Transit operates its BEB and CNG bus fleets differently, the efficiency results presented are not an apples-to-apples comparison. An apples-to-apples comparison of fuel cost—i.e.,
Also, the list of standard test procedures addressed in SAE J1711 has been expanded to cover all five major test cycle procedures (UDDS, HFEDS, US06, SC03, and Cold FTP) now being used to evaluate vehicle fueleconomy. Consumable fuels that are covered by J1711 are limited to petroleum-based liquid fuels (e.g.,
Comparing fuel consumption with diesel, 50D/50E and 50D/50E + 7% DME. In a study published in the ACS journal Energy & Fuels , M. Emulsification of diesel with ethanol is one of the possible approaches to improve fueleconomy and reduce emissions of pollutants from diesel engines. Click to enlarge.
The International Council on Clean Transportation (ICCT), one of the organizations at the root of uncovering the Volkswagen diesel emission scandal ( earlier post ), has published a new analysis of developments and trends in advanced diesel engine technology. —Isenstadt and German (2017). Background.
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.
diesel for the ML350 BlueTEC model that which meets emissions standards in all 50 states and delivers improved performance, yet with considerably reduced fuel consumption. The positive results at AMG led Mercedes-Benz to adapt this cylinder wall coating technology for use in the V6 diesel engine as well. Cylinders. 20/25 (est.).
The diesel-electric full-hybrid vehicle, weighing just 380 kilograms (838 lbs), offers an initial glimpse at how a future production version might appear. The “one-liter” designation refers to the design target of fuel consumption of 1 liter per 100 kilometers (235 mpg US). Click to enlarge. Earlier post.). Click to enlarge.
TDI Clean Diesel; and the 2.0L Volkswagen’s DSG 6-speed dual-clutch transmission will be offered on the TDI Clean Diesel and 2.0L TDI Clean Diesel engine produces 140 hp (104 kW) and 236 lb-ft (320 N·m) of torque. Fueleconomy values are also improved up to 10% over prior 2.5L The four cylinder 2.0L
liter diesel to its Zafira van line-up as its first ecoFLEX model. ecoFlex Zafira has a combined cycle fuel consumption of 53.3 By comparison, the 1.9 mpg US) fueleconomy rating. A different final drive ratio also raises the gearing, improving both fueleconomy and offering a more relaxed cruising gait.
We use vehicles modeled in Autonomie to estimate vehicle costs and fueleconomy along with fuel price projections from the Energy Information Administration (EIA), and focus on developing internally consistent estimates for other relevant cost parameters. Per-mile maintenance costs by powertrain. Burnham et al.
Comparison of 2015-2020 new vehicle potential fuel-saving technologies for seven vehicle types: tractor trailer (TT), Class 3-6 box (box), Class 3-6 bucket (bucket), Class 8 refuse (refuse), transit bus (bus), motor coach (coach), and Class 2b pickups and vans (2b). Source: TIAX. Click to enlarge.
Cummins is one year into a four year program (ATLAS, Advanced Technology Light Automotive Systems) to develop, in partnership with the US Department of Energy (DOE), a new light-duty diesel truck engine that will meet Tier 2 Bin 2 (SULEV) emission requirements while achieving at least a 40% fueleconomy improvement (26.1
The White Paper was published by the US Coalition for Advanced Diesel Cars, a national organization focused on promoting technology neutral policies and the energy efficiency and environmental benefits of advanced clean diesel technology. Current fueleconomy policy clearly demonstrates this fact.
The particle number count under those conditions increased by more than an order of magnitude in comparison to DPF-out particle concentrations. Diesel particulate filters (DPF) and urea-based selective catalytic reduction (SCR) exhaust after-treatment systems thus have emerged as feasible strategies to meet the 2010 USEPA regulations.
The dual-fuel PCCI strategy showed thermal efficiency of 53%. Emissions under the dual-fuel concept, at 11 bar IMEP. The University of Wisconsin concept proposes the use of dual fuel tanks, with port fuel injection of gasoline and direct injection of diesel, with the in-cylinder mixing of the fuels.
Though there are some exceptions to these positive results for some of the diesel versions of vehicles from a total-cost-of-ownership perspective, the overall direction of the results supports the idea that diesel vehicles are competitive within the U.S. Average diesel take rates. Belzowski 2015. Click to enlarge. Model year.
Rolf Reitz of the University of Wisconsin found that reactivity controlled compression ignition (RCCI) ( earlier post ) in a light-duty engine can meet Tier 2 Bin 5 NO x levels without aftertreatment, while offering a 4% improvement in fuel consumption and 7.3% Earlier post.). Earlier post.). —Kokjohn and Reitz.
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