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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. They presented their results in a paper at SAE 2014 World Congress in Detroit.
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.
Detroit Diesel, a Daimler company, previewed its production-intent version of Daimler’s BlueTec technology for emissions control at the Technology and Maintenance Council (TMC) Conference. When compared to non-SCR technologies planned for use in 2010, the Detroit Diesel BlueTec technology will deliver even greater fueleconomy advantage.
The demonstrator will be present at the upcoming SAE 2014 High Efficiency IC Engine Symposium in Detroit in April; SwRI engineers are presenting a paper (2014-01-1190) at the SAE 2014 World Congress on the development of the demonstrator’s engine. In 2013, SwRI reported a 2.0-liter
Improved fueleconomy over SAE 15W-40 conventional oils. Tests show comparable fueleconomy to SAE 10W-30 in (Class 6) stop-and-go applications and up to 0.7 % fueleconomy improvement with long haul trucks (Class 8) when compared to a SAE 15W-40 oil.
The A dvanced C ombustion C oncepts— E nabling S ystems and S olutions (ACCESS) is developing advanced combustion control concepts along with with an enabling system, subsystem and component level solutions for the management of multi-mode/multi-fuel combustion events. HCCI range extension with boosting. Source: Bosch. Click to enlarge.
The company presented these latest test results in a paper at the SAE 2012 World Congress in Detroit. The test engine for the paper was a 250cc single-cylinder unit with dual-camshaft-actuated reciprocating sleeve valves for induction and exhaust. Compression ratio was set at 15:1, and the fuel used was 87 octane gasoline.
The award-winning engine family is currently built at three plants: Trenton (Michigan) Engine Complex, Mack Avenue (Detroit) Engine and Saltillo (Mexico) South Engine. Low Pressure Cooled Exhaust Gas Recirculation (EGR) assists to combine with the high-pressure system to expand the range of EGR usage and to improve fueleconomy.
At 32 mpg, the 2010 Equinox will offer best-in-segment highway fueleconomy and have a highway driving range of up to 600 miles. GM’s biggest competitors in this segment and their 2009 EPA fueleconomy estimates are the Honda CR-V (20/27) and the Toyota RAV-4 (22/28).
The fueleconomy ratings are still TBD. The 1.4L’s turbocharger is integrated within the exhaust manifold, for reduced weight and greater packaging flexibility in small vehicles. The standard Ecotec 1.8L engine is paired with five-speed manual or six-speed automatic transmissions, and an Ecotec 1.4L The Ecotec 1.4L
improvement in city fueleconomy (24.5 Southwest Research Institute (SwRI) announced preliminary test results of its Dedicated-Exhaust Gas Recirculation (D-EGR) demonstration vehicle ( earlier post ) at the SAE 2014 World Congress in Detroit. Hydrogen-enriched exhaust is routed to the intake. mpg) and a 9.2%
At SAE World Congress in Detroit, Honda engineers presented several papers on the development of the new Accord plug-in hybrid, describing work on the new gasoline engine (which will also be featured in the coming full hybrid version of the Accord), and the development of the new two-motor system. Valve train (exhaust). VTEC & e-VTC.
unit features: An offset crankshaft that helps improve fueleconomy. Faster cylinder block warm-ups save fuel, especially in cold weather. An exhaust manifold cast into the cylinder head. The one-piece assembly lowers the temperature of the exhaust gases. liter gasoline engines. Earlier post.).
Simulated fueleconomy for 1.8L GDCI showed a predicted fueleconomy improvement of 65%, 28%, and 28% for the FTP City, Highway, and US06 cycles, respectively, for a combined FE improvement of 50%. Vehicle simulations for various drive cycles predicted very good fueleconomy for all city and highway modes.
Inputs into the model include exhaust mass flow rate and temperature downstream of the catalytic converter, ORC component size and geometry. The evaporator was a shell-and-tube type design with exhaust gas passing through the tubes. Using the simplest ORC design (exhaust gas alone as the source of thermal input—i.e.,
Hyundai introduced its Veloster three-door coupe in a world debut at the North American International Auto Show in Detroit. D-CVVT (intake and exhaust camshaft phaser) camshafts and hydraulic engine mounts provide optimum power, efficiency and refinement. Automatic transmissions lose power and fueleconomy in the torque converter.
Satisfaction is measured based on eight key factors: engine reliability and dependability; engine warranty; acceleration when fully loaded; electronic control module; accessibility to components for service or maintenance; vibration at idle; maintaining speeds on grades; and average fueleconomy. Overall Scores. Caterpillar.
Among the many features of the new 2014 Jeep Grand Cherokee—introduced at the Detroit Auto Show—two in particular contribute to significantly improved fueleconomy and driving performance: an optional new 3.0-liter Full-time 4x4 models have fueleconomy figures of 20 city and 28 highway. New 8-speed.
The two new luxury diesel SUVs are making their debut at the 2015 North American International Auto Show in Detroit and go on sale Fall 2015. Preliminary fueleconomy figures for the Range Rover Sport and Range Rover are 22 mpg (city), 28 mpg (highway) and 25 mpg (combined) (10.7, l/100 km) on the highway.
At WCX SAE World Congress Experience this year in Detroit, Nissan presented a paper on the development of and technologies applied in the new 2.5L The leeway gained can go towards increasing fueleconomy and engine power. Nissan’s Decherd assembly line is using a mirror bore process in the all-new 2019 Nissan Altima 2.5-liter
Hyundai brought its Blue-Will plug-in hybrid (PHEV) concept—first introduced at the 2009 Seoul Motor Show ( earlier post )—to the North American International Auto Show in Detroit for its US debut. Blue-Will promises an electric-only driving distance of up to 40 miles on a single charge and a fueleconomy rating of up to 106 mpg US (2.2
The next generation of Ford’s EcoBoost turbocharged, direct-injection gasoline engines will introduce cooled EGR (exhaust gas recirculation), enabling higher compression ratios, according to Ford executives speaking at the SAE 2010 World Congress in Detroit.
Achates Power has made excellent progress overcoming the challenges commonly associated with two-stroke engines: emissions, fueleconomy, oil consumption and durability. —David Merrion, former EVP of engineering at Detroit Diesel, Achates Power technical advisory board member, and two-stroke engine expert.
Researchers at the US Department of Energy’s Argonne National Laboratory’s Center for Transportation Research have devised new variable combustion strategy for hydrogen-fueled engines using the Lab’s Modular Automotive Technology Testbed (MATT). Henning Lohse-Busch. International Journal of Hydrogen Energy doi: 10.1016/j.ijhydene.2008.07.099.
LiquidPiston received this award after meeting the objectives for Phase I of the program, which had focused on the clean sheet design of the X4, and demonstrating the structural integrity of the new engine platform while operating under compression ignition of diesel fuel. Nickerson, M., Kopache, A., Shkolnik, A.,
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 fueleconomy. Reduced enrichment. —Stein et al.
The second-generation Volt, which makes its world debut in about 10 weeks at the North American International Auto Show in Detroit, features a clean-sheet, all-new Voltec propulsion system—new battery, new electric drive unit, new power electronics and new range-extending engine. Click to enlarge. Click to enlarge. Drive unit.
to deliver an estimated 190 horsepower (140 kW) and 180 lb-ft of torque (250 N·m)—about 12% more horsepower and 16% more torque than the current Ecotec 2.4L, while offering estimated highway fueleconomy of more than 30 mpg (7.84 L/100km) (final fueleconomy numbers are pending). GM expects the 2.5L
EcoBoost engine at the North American International Auto Show in Detroit in January, Ford had also shown a Lincoln C (C-size) concept car powered by a 1.6-liter, The 6-speed dry-clutch automatic transmission delivers a 7-9% fueleconomy improvement vs. traditional 4-speed automatic transmissions. At the debut of the 3.5L
During the SAE 2009 World Congress in Detroit, Gary Kissel of General Motors presented an update of hybrid, plug-in hybrid, and electric vehicle standards being revised or developed by the Society of Automotive Engineers (SAE) Hybrid Standards Committee. by Jack Rosebro. Active standards work. Click to enlarge.
Ford unveiled its strategically important next-generation Ford Focus in both four-door sedan and five-door hatchback styles at the 2010 North American International Auto Show (NAIAS) in Detroit. Duratec I-4 unit while contributing to projected fueleconomy gains of more than 10%. “People downsize cars, not expectations.
On the eve of the Detroit Auto Show, Cadillac introduced the 2013 ATS, a new rear-drive compact luxury sports sedan developed on an all-new, lightweight vehicle architecture. GM says the ATS will be able to deliver peak highway fueleconomy of more than 30 mpg. 2013 Cadillac ATS. Click to enlarge. Earlier post.) pounds (2.5
Lexus IS F SPORT onstage at the Detroit Auto Show. liter, four-cylinder Atkinson cycle engine featuring a new D-4S fuel injection system, Dual VVT-I and a high-efficiency Exhaust Gas Recirculation system. Click to enlarge. Lexus unveiled the all-new 2014 IS sport sedan at the North American International Auto Show.
Conceptual schematic of direct thermoelectric generator mounted in a vehicle’s exhaust stream. The exhaust energy content of Atkinson-cycle engines, which are used in many hybrid powertrains, is lower than conventional IC engines due to the cycle’s inherently higher thermal efficiency. Indirect configurations are also possible.
Among the key elements of the upgraded 213-kW (295-horsepower) is two-step variable valve lift (VVL), which boosts fueleconomy and Pentastar’s refinement. Other features of the engine include: Cooled exhaust-gas recirculation (EGR) delivers greater efficiency and enables knock-free operation at higher, real-world loads.
Testing was also conducted at the DTNA Detroit engineering facility to demonstrate engine efficiency by achieving 50.2% The Freightliner SuperTruck features a low-back-pressure, next-generation aftertreatment system that efficiently removes NO x from the exhaust stream. This reduces friction, and increases efficiency and fueleconomy.
The venerable Mustang is new for 2024, becoming the last man standing from Detroit after the Challenger and Camaro shuffle off this mortal coil. A $1,225 active valve exhaust makes my list because I’m extroverted and like to annoy the neighbors. We’ll let you slug this one out in the comments.
Toyota unveiled the new fifth-generation Avalon at the North American International Auto Show in Detroit. The VVT-iW system is employed on the intake cycle, with VVT-i (Variable Valve Timing - Intelligent) activated on exhaust. Close ratios at the mid-range gears improve passing power. inches; bore remains at 3.44
Twin Turbo is the only six-cylinder engine to combine turbocharging with cylinder deactivation and stop/start technologies to conserve fuel. Cadillac expects the combination to enhance fueleconomy by up to an estimated 6%. Features shared by the 3.0L Twin Turbo and 3.6L Twin Turbo. While the 3.0L Twin Turbo include: Lower 9.8:1
Chrysler unveiled the all-new 2017 Pacifica minivan in both conventional and plug-in hybrid versions at the North American International Auto Show (NAIAS) in Detroit. liter Pentastar V-6 engine produces best-in-class horsepower (287) and torque (262 lb-ft), along with leading fueleconomy of an estimated 28 mpg highway.
The Environmental Protection Agency, EPA , rates fueleconomy at 33 highway and combined when running in hybrid mode only. Fueleconomy numbers reported by Clean Fleet Report are non-scientific and represent the reviewers driving experience using the dash gauge computer. Your numbers may differ.
The Environmental Protection Agency rates the Corsair’s fueleconomy at 33 mpg highway and combined when running in hybrid mode only. Fueleconomy numbers reported by Clean Fleet Report are non-scientific and represent the reviewer’s driving experience using the dash gauge computer. kilowatt-hours/kWh).
GM estimates fueleconomy to be 41 mpg combined (MY 2015 = 37 mpg) with 102 mpge (MY 2015 = 98 mpge). 1, cooled exhaust gas recirculation, wide authority cam phasers and a variable-displacement oil pump to make the most of performance and efficiency. The 2016 Volt goes on sale in the second half of 2015. Manufacturing.
EcoBoost engine made its debut at the Detroit Motor Show in January, it was shown with a Lincoln C concept car powered by a 1.6litre, four cylinder EcoBoost engine mated to a powershift transmission. With the variable camshaft timing the intake and exhaust cams vary independently improving airflow through the engine. When the 3.5l
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