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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.
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. There are two basic exhaust emissions and fueleconomy tests described in J1711. Earlier post.)
In addition to highway fueleconomy estimates that are 2 mpg higher than a 2013 Ford V8 pickup equipped with a 5.0L 2WD Pickup truck fueleconomycomparisons. In addition to highway fueleconomy estimates that are 2 mpg higher than a 2013 Ford V8 pickup equipped with a 5.0L Fueleconomy.
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 fueleconomy benefits of up to 42.6% Fueleconomy. —FEV analysis.
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).
The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. The particle number count under those conditions increased by more than an order of magnitude in comparison to DPF-out particle concentrations. Credit: ACS, Thiruvengadam et al. Click to enlarge.
Comparison of ISFC (@42.9 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. MJ/kg) (4000 RPM) between 250cc Pinnacle and 200cc poppet valve engine.
liter, four-cylinder engine of the new CLA 250 is a member of the BlueDIRECT family of gasoline engines, and was first applied in combination with exhaust-gas turbocharging and external high-pressure exhaust gas recirculation in the E 250 Coupé introduced last year ( earlier post ). (It Source: Vent et al. Click to enlarge.
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. Changes in the exhaust manifolds and turbo from Gen 1 to Gen 2.
Comparison of fuel consumption of Omnivore, homogeneous Gasoline Direct Injection (GDI) and Spray-Guided GDI engines. The first testing phase of Lotus Engineering’s Omnivore variable compression ratio, flex-fuel direct injection two-stroke engine ( earlier post ) has been successfully completed on gasoline. Click to enlarge.
The estimate reflects an average of fueleconomy in both the default “Tour” mode, which delivers 28 mpg highway, and driver-selectable “Eco” mode, which delivers 30 mpg highway. Fueleconomy estimates for Corvette Stingrays equipped with the six-speed automatic will be finalized soon.
In other words, they found that they real-world fueleconomy benefit of adoption of HEVs may be better than for estimates based on EPA “sticker” fueleconomy alone. Our real-world VSP-specific FCR measurements suggest computed FTP (city) cycle CV fuel use would be nearly 2 times higher than for the HEV and 1.3
A joint study by Controlled Power Technologies (CPT) and Austria’s Technische Universität Wien (TU Wien) into 48V diesel mild hybrid technology verified a 9% reduction of NO x in raw engine-out emissions, while retaining the fueleconomy and CO 2 benefits of diesel engine technology. —Paul Bloore.
The company’s engineers have a prototype system running in a B-segment donor vehicle on a dynamometer and are calibrating the control strategy to prove its driveability, performance, CO 2 and fueleconomy benefits. At the same time, Torotrak will gather data on the system’s efficiency to validate fueleconomy simulations.
advantage over competing buses in fluid economy—a measurement of diesel fuel plus liquid urea consumed by the vehicle’s emissions reduction system. Comparisons of type C buses have typically been centered on fueleconomy. to conduct a head-to-head fluid economycomparison.
Importantly, dDSF is able to combine improved tailpipe emissions while simultaneously reducing fuel consumption, thus combining two critical objectives that have previously competed against each other. Comparison of baseline and dDSF CO 2 and NO x on HD FTP cycle and LLC. Source: Tula.
General project targets were to deliver diesel-like or better fueleconomy using E10 gasoline (RON91), and to achieve low engine-out NO x and PM using low temperature combustion, the intention being to avoid the cost of aftertreatment for NO x and PM, in addition to meeting more stringent standards. —Sellnau et al. kWh and FSN 0.1,
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.). —Kokjohn and Reitz. Sage L Kokjohn and Rolf D.
Opel is bringing the new 96 kW/130 hp diesel to the market in the Grandland X with a six-speed manual transmission (fuel consumption urban 4.7-4.7 WLTP measurements converted to NEDC values for comparison purposes.) The new engine is equipped with fuel-saving Start/Stop. In comparison to its predecessor, the 88 kW/120 hp 1.6-liter
Fiesta—available in four- and five-door bodystyles—will offer North American buyers a new choice of 15 class-exclusive technologies and projected highway fueleconomy of 40 mpg, besting the Honda Fit, Nissan Versa and Toyota Yaris and Corolla. Our fueleconomy leader is now a PowerShift automatic. The Ford Fiesta’s 1.6-liter
four-cylinder more power than many V6 engines, all on regular fuel. Estimated highway fueleconomy is 22 mpg city and 34 mpg US (6.9 Turbocharging and GDI are part of “Hyundai Blue Drive,” the company’s environmental initiative to continue industry leadership in fuel efficiency and sustainability. and Competition.
This would include a new turbocharger and corresponding exhaust manifold modifications, and a new air filter to reduce inlet pressure loss. Potential fueleconomy benefit over baseline is 3% for both intercity and local duty cycles. Potential fueleconomy benefit over baseline is 30% on the freight duty cycle.
will achieve fueleconomy of 30 km/L (71 mpg US, 3.33 By comparison, the Prius S model is rated at 35.5 Fueleconomy (10-15) km/L [mpg US]. Fueleconomy (JC-08) km/L [mpg US]. A cooled EGR system cools part of the exhaust gas and returns it to the combustion chamber in order to suppress knocking.
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 By comparison, the earlier A6 Golf GTD posted 8.1 With a new 2.0L l/100 km)—also a marked improvement over the A6 GTD’s 43 mpg. Variable valve timing.
Mass comparison, 4x4 crew cabs. The 2015 Chevrolet Colorado uses engineering techniques and lightweight materials to create fuel-efficient pickup capability in a mass-efficient mid-size package. Chevrolet expects EPA fueleconomy estimates for Colorado this summer. Click to enlarge. four cylinder and 3.6L
Hydrogen operation with the current WFS HPDI fuel system outperforms natural gas in terms of thermal efficiency, mainly due to lower equivalence ratio for H 2 at given fueling energy level, higher kinetic energy for H 2 jets as well as higher tolerance of H 2 combustion to fuel rich operation. Source: Westport/AVL.
The chemistry of a fuel impacts the emissions from an engine, with the most obvious example being unburned or partially burned fuel which is a major component of engine exhaust. Engine-out exhaust contains typically 1?3% 3% unburned or partially burned organic fuel components. Emissions Engines Ethanol Fuels'
Estimated EPA fueleconomy ratings are 53/46/50 mpg US city/highway/combined (4.4/5.1/4.7 The engine also uses Sequential Multiport Fuel Injection (SFI) and Electronic Spark Advance (ESA). This improves torque in all engine speed ranges as well as increasing fueleconomy, and reducing exhaust emissions.
The category of LTC spans a range of specific technologies; these are of great interest as they promise to improve fueleconomy, and reduce NO x and soot emissions by improving the in-cylinder combustion process. the addition of a port fuel injection system. The optimal control algorithm enhanced the fueleconomy by 17.0%
Data was collected with the stock ignition system with a representative ignition strategy, followed by comparison to a drop-in replacement with the TPS nanosecond pulsed power ignition system (coil and plug). The Toyota 2.5L engine was tested at FEV North America and results indicate improvements over the stock ignition system.
With these measures alone, fuel consumption could be reduced by around 3%. Comparison of the ML350 BlueTEC diesels. US fueleconomy city/hwy. Comparison of the ML350 gasoline engines. US fueleconomy city/hwy. ML350 BlueTEC 4MATIC (estimated) ML350 BlueTEC 4MATIC (Predecessor). Cylinders. Cylinders.
Gasoline direct-injection (GDI) engines have higher fueleconomy compared to the more widely used port fuel injection (PFI) engines. Therefore, the secondary organic aerosol and ozone formation potential of the exhaust does not depend on engine technology. For our fleet, increases in the fueleconomy of 1.6% (0.5−2.4%;
At launch, the 2011 Sonata will deliver an estimated 23 mpg city/35 mpg highway fueleconomy with the available six-speed automatic transmission with SHIFTRONIC. When equipped with the six-speed manual, the Sonata achieves an estimated 23 mpg city/34 mpg highway fueleconomy rating. Fueleconomy [city/hwy].
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.
The Ricardo CryoPower split-cycle engine concept redefines the processes of internal combustion to enable significantly improved internal thermal efficiency in comparison with today’s state-of-the-art engines. CryoPower is based on the use of a separate induction and compression cylinder from that used for combustion and exhaust.
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 mpg US vs. 18.6
Debuting in the next-generation F-Series Super Duty truck, the new diesel engine will deliver improvements in torque, horsepower and fueleconomy while adding more fueling flexibility—the engine is sanctioned for up to B20 biodiesel blends—and meeting 2010 emissions requirements. This layout has several advantages.
The recuperated engine uses isothermal compression via cryogenic injection to enable significant exhaust to compressed gas heat transfer. Recuperator to transfer heat from exhaust gas to compressed air. The concept of the Ricardo Split-Cycle engine. Source: Neville Jackson. Click to enlarge.
On 15 Sep, NHTSA and the US EPA proposed a joint rulemaking on fueleconomy and greenhouse gas emissions for light duty vehicles: an average new car 34.1 mpg if the automotive industry were to meet this CO 2 level just through fueleconomy improvements.) ( Earlier post.). mpg and 250 g CO 2 /km for model year 2016.
Pinnacle says its 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 using a sliding sleeve valve system: intake liner, exhaust liner, spark plug in the middle.
Toyota’s sales target for the Prius v (for “versatility”) is about “ten to fifteen percent” of conventional Prius sales in North America, or about 15,000 to 25,000 vehicle per year, depending on which year is used for comparison, according to Toyota Division Group Vice President and General Manager Bob Carter.
In comparison, average PN EFs from a PFI vehicle exhibited less spatial variability, with mean PN EFs 15 m from the roadway 17% lower than those measured 3 m from the roadway. Hence, GDI PM mass loadings and chemical composition may vary depending on the measurement environment or exhaust conditioning. —Zimmerman et al.
Broadly, the test results show significant reductions in NO x , particularly against a non-hybrid diesel baseline, and fueleconomy improvements of up to 18% for the vehicle and under the drive cycles tested. Exhaust gases were captured in order to measure the vehicle’s emission of carbon dioxide (CO 2 ) and NO x.
of the energy output of the fuel is used to actually move the car; the rest is wasted. Of the energy output of fuel in a car engine, 33% is spent in exhaust, 29% in cooling and 38% in mechanical energy, of which friction losses account for 33% and air resistance for 5%. With current technology, only 21.5% million TJ/a.
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