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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. Unfortunately, these engines exacerbate engine knock.
At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fueleconomy (CAFE) target of 26 mpg (9.05 Cost of the new engine relative to gasoline baseline. Earlier post.). l/100 km) for a vehicle of that size.
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%
Light-duty vehicles, including sedans, SUVs, and pickup trucks, are currently responsible for 58% of US transportation sector emissions. Pickup trucks accounted for 14% of light-duty vehicle sales in the United States in 2020, and the market share of both pickups and SUVs has grown in recent years. Woody et al.
Based on a Frontier Desert Runner 4x2 model, was created to gauge the market reaction to a Nissan mid-size pickup with a diesel engine and plot a potential future direction for the Frontier. The baseline engine for the work was a Euro IV-compliant inline 4-cylinder 2.8L to provide a 5.0-liter Earlier post.). to provide a 5.0-liter
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. The report found that fueleconomy for the US fleet continues to improve.
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. Source: EPA. SOurce: EPA.
Approximately 6 billion gallons of fuel are wasted in the US each year as vehicles wait at stop lights or sit in dense traffic with engines idling, according to US Department of Energy estimates. —Tim Gee, principal computer vision engineer at GRIDSMART.
The 2020 Ram 1500 will become the most powerful half-ton diesel pickup in the US, with 480 lb-ft (651 N·m) of torque, and the most capable light-duty diesel, with towing capability up to 12,560 pounds. liter V-6 EcoDiesel is also expected to lead the segment on fueleconomy. The all-new third-generation 3.0-liter
In the US, Model Year (MY) 2018 vehicle fueleconomy was 25.1 Since MY 2004, CO 2 emissions have decreased 23%, or 108 g/mi, and fueleconomy has increased 30%, or 5.8 Average estimated real-world CO 2 emissions are projected to fall 6 g/mi to 346 g/mi and fueleconomy is projected to increase 0.4
The new TT and TTS models will be available with three different four-cylinder engines with turbocharging and direct injection. TFSI produces 380 nm (280lb-ft) of torque at an engine speed of between 1,800 and 5,700 rpm. The hood, doors and trunk lid are also made of this light metal. A start-stop system is a standard feature.
Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The starting point of engine braking is marked by a vertical green line, and the end point is marked by a vertical red line.
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.
Using current technologies, all evaluated biofuel, battery electric, and hydrogen fuel cell vehicle pathways offer significant C2G GHG emissions reduction compared to the current gasoline internal combustion engine vehicle. C2G emissions are a sum of WTW emissions and emissions associated with vehicle manufacturing.
In 2012, less than one percent of all cars and light-duty trucks were produced with a non-hybrid stop/start system. After 2015, the greatest share of start/stop systems was installed on light-duty trucks, rising to 35.7% of all light-duty trucks produced in model year (MY) 2018. Notes: Data for 2018 are preliminary. Source: U.S.
Diesel will surpass gasoline as the number one transportation fuel worldwide by 2020 and continue to increase its share through 2040, according to ExxonMobil’s recently published Outlook For Energy: A View To 2040. Diesel demand accounts for 70% of the growth in demand for all transportation fuels through the forecast period to 2040.
liter Atkinson-cycle four-cylinder gas engine with two motor-generators through a planetary-type continuously variable transmission. The revised hybrid system boosts output to 134 hp (up from 121) and 156 lb-ft (212 N·m) of torque (up from 146 lb-ft / 200 N·m), while EPA-estimated combined fueleconomy reaches 47 mpg.
The study considers five different powertrains (internal combustion engine, hybrid-electric, plug-in hybrid-electric, fuel-cell-electric, and battery-electric) and 12 cost components (purchase cost, depreciation, financing, fuel, insurance, maintenance, repair, taxes, registration fees, tolls and parking, payload capacity and labor).
In a presentation at the SAE 2014 High Efficiency IC Engine Symposium and then in a paper given at SAE 2014 World Congress, Mark Sellnau, Engineering Manager, Delphi Advanced Powertrain, reported that Brake Specific Fuel Consumption for the 1.8L Earlier post , earlier post.). Background. Earlier post.)
Toyota estimates that the 2019 Avalon Hybrid will boost fueleconomy by up to 10% over its MY 2018 predecessor, from 40 mpg (5.88 liter four-cylinder Dynamic Force Engine is more fuel efficient, runs cleaner, and is more powerful than previous iterations, and excels at dissipating thermal inefficiencies. The new TNGA 2.5-liter
Volkswagen launching refreshed MY 2022 Jetta in US; engine upgrade, IQ.DRIVE. liter turbocharged and direct-injection EA211 engine found in the recently-launched Taos compact SUV. The result is a combination of low-speed torque and competitive fueleconomy. The refreshed Jetta adopts the 1.5-liter
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.
and Saudi Aramco’s US-based subsidiary Aramco Services Company (ASC) have signed a joint development agreement providing the framework for the two companies to work together on a series of Opposed-Piston (OP) Engine projects, which will speed the development of new efficient, low-emissions powertrain choices. Achates Power, Inc.
The all-new 2018 Volkswagen Tiguan—the second-generation of the vehicle—is powered by the latest version of the EA888 four-cylinder engine, the 2.0L This is the only engine/transmission combination available in the Tiguan in the US. Fueleconomy city/hwy/comb. Third, the EA888 2.0TSI Gen.3 Select compact SUVs.
The found that using a GPF did not show any fueleconomy and CO 2 emission penalties, while the emissions of total hydrocarbons (THC), carbon monoxide (CO), and nitrogen oxides (NOx) were generally reduced. liter all-guided direct injection SI Atkinson cycle engine; the second was equipped with a 1.5-liter Yang et al.
V6 TDI diesel engine. 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. Earlier post.) Are these sales incentivized?
NHTSA is also setting forth proposed augural standards for MY 2032 passenger cars and light trucks, that would increase at 2% and 4% year over year, respectively, as compared to the prior year’s standards. The proposal would also drive fuel efficiency improvements for heavy-duty pickup trucks and work vans.
Shell has partnered with the Airflow Truck Company to collaborate on a hyper-aerodynamic, fuel-efficient Class 8 concept truck: Starship. This next-generation concept truck features a custom, aerodynamic design and aims to demonstrate improvements in fueleconomy for Class 8 trucks. of the engine. consumption.
Stemming from a major project partially funded with a $9-million grant from the Advanced Research Projects Agency - Energy (ARPA-E) to develop an opposed-piston two-stroke gasoline compression ignition engine (OPGCI) ( earlier post ), Achates Power announced it is developing a 2.7-liter, liter, 3-cylinder (i.e., The new Achates Power 2.7-liter
diesel from GM’s European lineup (the engine is manufactured in Kaiserslautern, Germany) to challenge Jetta on the basis of highway fueleconomy and power, as well as content. Fueleconomy background. Diesel engine. Chevrolet is positioning the Cruze, which features a US-modified 2.0L 2014 Ecotec 2.0L
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.
Manufacturers have been adopting technologies that improve the efficiency of light-duty vehicles and allow them to achieve greater fueleconomy. Turbo charging and stop/start are two other engine technologies that reached a production share of about 30%, while cylinder deactivation (CD) was at 12%.
The new Focus features a broad suite of Ford advanced driver assistance technologies and advanced EcoBoost gasoline and EcoBlue diesel engines offering a 10% fuel-efficiency improvement across the range. liter EcoBoost engine is offered with 150 PS and 182 PS. Ford has unveiled the all-new Ford Focus.
GMZ Energy, a market leader in the development of high-temperature thermoelectric generation (TEG) solutions, has successfully demonstrated a 1,000W TEG designed for diesel engine exhaust heat recapture in a Bradley Fighting Vehicle. GMZ’s TEG also enables silent generation, muffles engine noise, and reduces thermal structure.
The PCX HYBRID, based on the PCX released in April 2018, is powered by a new high-output lithium ion battery, adding drive assist to the ACG (Alternating Current Generator) starter that conventionally starts the engine and generates electricity.
The key to NREL’s design innovations for SiC thermal management is to improve the heat transfer coefficient, which allows this system to cool itself efficiently and continuously during operation with the engine coolant. In general, heavy-duty vehicles demand more power and far higher torque during operation than the average light-duty sedan.
The project will build and install diesel-fueled two-stroke compression-ignition Achates Power Opposed-Piston Engines into Class 8 demonstration trucks that will be road-road ready in 2019 and operate in fleet service in California in 2020. This program will demonstrate the first diesel engine to comply with the state standard.
liter engine is a strong but smooth operator, yielding 203 hp at 6,600 rpm and 184 lb.-ft. The Camry’s four-cylinder engine uses a very high compression ratio (13:1) and Toyota’s innovative D-4S fuel injection, which employs both direct injection and additional port injectors. The Dynamic Force 2.5-liter Toyota Hybrid System.
liter in-line four-cylinder Skyactiv-G gasoline engine with a 100 kW electric motor and a 355V, 17.8 The Mazda CX-60 powertrain line-up features three new engines: the e-Skyactiv G PHEV unit and two straight-six engines: a 3.3 liter e-Skyactiv X gasoline engine, both featuring Mazda’s 48V mild hybrid system.
The study was performed by a team from the University of California at Riverside (UCR) Bourns College of Engineering – Center for Environmental Research and Technology (CE-CERT). The E15 fuel was created by splash-blending denatured ASTM D4806 fuel grade ethanol with the final E10 fuel.
liter Subaru Boxer engine, running on 87 octane, is mated to a series-parallel hybrid system with two electric motors. Fueleconomy drops by one mpg on some trim lines. That a bump from the same engines non-hybrid configuration of 180 hp/178 lb.-ft. The hatch, with LED tail lights, has a small lip spoiler and a wiper.
At the 2019 IAA Frankfurt in September, Tenneco’sPowertrain division will present its award-winning PRiME 3D simulation software which has been shown to cut development time for engine cylinder components by up to 70%. billion, serving light vehicle, commercial truck, off-highway and industrial markets.
Toyota projects fueleconomy of 52 mpg city / 48 mpg highway / 50 mpg combined for the AWD-e model, and estimates that the AWD-e model—which is debuting at the LA Auto Show—could account for as much as 25% of annual US Prius sales. The Prius gets a good share of its fuel efficiency by cheating the wind with an ultra-low 0.24
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