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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 exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.
At the recent 2013 SAE World Congress, engineers from Bosch and AVL presented papers on progress in the ACCESS project, describing the design, combustion development and controls development for a resulting 4-cylinder gasoline turbocharged direct injection (GTDI) engine with part-load HCCI capability. Earlier post.). —Wheeler et al.
Tenneco and Gentherm (formerly BSST/Amerigon) are part of a US Department of Energy (DOE) consortium actively developing a thermoelectric generator (TEG) for capturing waste exhaust heat in vehicles and converting it to electrical energy to be used to power electrical systems within the vehicle. Source: Crane (2013).Click
The VEMB system uses a concentric camshaft, blow-down manifold and scavenge manifold to separate the exhaust event into two phases: high-energy blow-down to the turbo without pumping losses, and high-hydrocarbon scavenge to the EGR system. to 2 ratio points and maintain the same knock limit for an additional 3-4% improvement in fueleconomy.
The new V6 and V8 make up half of an all-new powertrain lineup for the 2011 Ford F-150, part of the most extensive engine makeover in the 62-year history of F-Series. A one-way clutch, which allows for smoother 1-2 and 2-1 shifts, faster downshifts and improved fueleconomy, has been added. Also new for 2011 are the 6.2-liter
Utilizing technologies such as turbocharging, direct injection, twin independent variable camshaft timing (Ti-VCT) and six-speed transmissions, the upgraded powertrain portfolio will deliver more than 20% in fueleconomy improvement to Ford’s passenger vehicle fleet in China by 2015 while reducing tailpipe carbon dioxide emissions by 20%.
Internal combustion engine’s performance and efficiency are currently governed by variable valve control technology that adjusts the timing of valve opening and closing and depth of the valve’s opening, with engine power produced through the fuel intake-compression-expansion-exhaustion cycle. kgm (265 N·m) of torque.
Among the improvements on this engine are: a thin-wall crankcase casting; exhaust headers that are integrated into the cylinder head; smaller diameter main bearings; roller bearings for the twin balancer shafts; and a crankshaft that has four counterweights instead of eight.
Results of this study showed that the pre-chamber jet ignition combustion system roughly matches HCCI fueleconomy across both NEDC and FTP drive cycles, with a 13% improvement in fueleconomy recorded over the baseline stoichiometric (λ=1) spark ignition combustion system. Click to enlarge. Background.
The increase in severe duty operations is due to changing driving habits on highway, including shorter haul lengths, the growth in intermodal delivery, and more stop-and-go operations, while off-highway has new energy efficient equipment that helps minimize fuel usage by cycling engines from load to no load.
The TEG technology, which converts waste heat from gas exhaust into electric energy and has the potential to improve passenger car fuel efficiency by as much as 5%. TEG & Exhaust System in Lincoln MKT. This follow-on light-duty vehicle project, funded in 2011, has a target of a 5% fueleconomy improvement.
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 2012 Camry again offers three powertrain choices, all of which have been enhanced for 2012 to provide better fueleconomy and more responsive performance: a revised 2.5L, 4-cylinder gasoline engine; an enhanced 3.5-liter The projected city/highway/combined fueleconomy for the LE model equates to 5.47, 6.03
l/100 km) in 2016, the The ICCT team assessed increased consumer label fueleconomy (as opposed to the regulatory test fueleconomy) to 35 mpg (6.71 The resulting trajectory would reduce CO 2 emissions by half and increase fueleconomy by more than 60% from 2016 through 2030.
Mazda North American Operations released EPA-estimated fueleconomy figures for its all-new 2016 Mazda CX-9. In Canada, NR Canada estimates of fuel consumption put the improvement at 35%.). engine, which produces the power of a V-6 engine without the fuel-efficiency penalty. SKYACTIV-G 2.5T SKYACTIV-G 2.5T
Using technology from the 2016 Chevrolet Volt propulsion system ( earlier post ), Malibu Hybrid will offer an estimated combined fueleconomy rating exceeding 45 mpg (5.22 The engine also features Chevrolet’s first application of Exhaust Gas Heat Recovery, or EGHR, technology, which uses exhaust heat to warm the engine and cabin.
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. This reliably prevents wall moistening, which is the basis for extremely low particle emissions and thus compliance with the EU6 Stage 2 exhaust gas standard.
The analysis used the Ohio State University EcoCAR, a student prototype PHEV, as the basis for the preliminary fueleconomy evaluation. On the other hand, it is well known that in an internal combustion engine up to 35% of the energy developed by the fuel combustion is dissipated in the exhaust gases. Skarke et al.
Researchers at Environment Canada have found that vehicle exhaust is a significant source of isocyanic acid (HNCO), a toxic gaseous acid that is a product of various forms of combustion and a potential health concern. Automobile exhaust is also a known source of inorganic acids such as nitric (HNO 3 ) and nitrous (HONO) acids.
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. Pinnacle Engines’ 110cc production-intent prototype packaged for a motorcycle application. Click to enlarge.
The expected fueleconomy ratings will deliver the highest driving range on one tank of fuel yet for Gladiator. There are more than 40 individual shift maps to optimize shift points for fueleconomy, performance and 4x4 capability. 1 to improve fueleconomy and reduce engine noise. axle ratio.
Cobra could enable a 5–10% reduction in CO 2 emissions when implemented in conjunction with engine downsizing and down speeding strategies, and potentially more when used in conjunction with alternative fuels, according to CPT. Unlike a turbocharger, Cobra is not dependent on the exhaust gases flowing to do its work.
liter V-8 Mustang GT deliver projected fueleconomy of up to 25 mpg US on the highway cycle—better than the pervious model—despite its performance. Ti-VCT provides extremely precise variable—yet independent—control of timing for intake and exhaust valves. Fueleconomy also is aided by engineering a lightweight powertrain.
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%. Part-load operation. GDCI Engine and 2.4L GDi baseline engine. Source: Sellnau et al. Click to enlarge. Hoyer et al.
The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). The study used two fuels—an E10 and E15.
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.
As part of its strategy of developing solutions to reduce CO 2 emissions, Valeo has acquired the Variable Torque Enhancement System (VTES) ( earlier post ) business of UK automotive technology development company Controlled Power Technologies (CPT). Unlike exhaust-driven turbochargers, electric superchargers are driven by an electric motor.
has several new parts, including a new water-cooled variable-geometry turbocharger; a new high-pressure common-rail fuel delivery system; a new Exhaust Gas Recirculation (EGR) system; a new intake manifold; a new cylinder head; a new cylinder block; a new balancer shaft unit; and a new Engine Control Module (ECM). Cylinder head.
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. Chevrolet is positioning the Cruze, which features a US-modified 2.0L l/100 km, respectively). l/100 km, respectively).
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
class not including hybrid vehicles) fueleconomy and CO 2 emissions. In Japan, the New March will be launched this month equipped with idling stop technology achieving a 26 km/L fueleconomy (61 mpg US, 3.85 liter HR12DE engine requires fewer moving parts compared to the more commonly used 4-cylinder engines.
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. Both solutions involve part load losses which compromise some of the fuel consumption savings made by downsizing.
TDI Clean Diesel EA288 engine ( earlier post ) with an EPA-rated highway fueleconomy rating of 46 mpg with the manual transmission (45 mpg automatic). It is one of the most fuel-efficient engines in its class, and already conforms to the LEV3 emissions standard in the US. Fueleconomy improvement. 2014 Jetta TDI.
turbo is standard on Eco ( earlier post ), LT and LTZ models and helps the Cruze Eco achieve up to an estimated 40 mpg on the highway (with a standard six-speed manual transmission), which is expected to be the best fueleconomy in the compact car segment. The Ecotec 1.4L Standard on Cruze LS models is the Ecotec 1.8L Turbo Airflow.
Preliminary fueleconomy figures for the Range Rover Sport and Range Rover are 22 mpg (city), 28 mpg (highway) and 25 mpg (combined) (10.7, Preliminary fueleconomy figures for the Range Rover Sport and Range Rover are 22 mpg (city), 28 mpg (highway) and 25 mpg (combined) (10.7, seconds respectively, compared to 6.9
Help Your FuelEconomy & the Environment. If you’re driving down the road and you notice a quiet car in front of you, you should know that the car’s exhaust system is doing its job. A well-maintained exhaust system is essential in making your ride safe and sound. What does a car exhaust do? Exhaust Manifold.
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% 2014-01-1190.
The Range Rover Evoque P300e emits 32 g/km of CO 2 (WLTP) and has an all-electric, zero tailpipe emission range of up to 66km (41 miles), with fueleconomy of 1.4 The Discovery Sport P300e can travel up to 62 km (38 miles) using all-electric power and delivers fueleconomy of 1.6 L/100km (168 mpg US).
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. Click to enlarge.
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,
Engineers focused on improving thermal efficiency and reducing friction of the engine’s internal moving parts, especially during warm-up—the time when an engine emits higher levels of CO 2 and other pollutants. unit features: An offset crankshaft that helps improve fueleconomy. —Derrick Kuzak.
The new approach to natural gas combustion technology is designed to provide vehicle and engine original manufacturers (OEMs) with a “downsized” natural gas solution that is cost competitive while providing similar levels of power, torque, and fueleconomy to a larger diesel engine.
Whereas HPD’s advantage is that it equals or exceeds the braking capabilities of a driveline retarder at a fraction of the cost, CDA’s benefits are reduced tailpipe emissions plus better fueleconomy. CDA reduces emissions by achieving higher exhaust temperatures in the operating cylinders.
An integrated exhaust manifold that is part of the cylinder head assembly and recovers exhaust heat for faster engine and transmission warmup, with quicker turbo response. Stop/start technology that automatically stops the engine in stop-and-go traffic for fuel efficiency. —Tom Sutter, chief engineer for the 2.7L
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