Cummins progressing with lightweight downsized T2B2 diesel for pickup; 40% improvement in fuel economy over gasoline V8

Green Car Congress

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 fuel economy (CAFE) target of 26 mpg (9.05 l/100 km), and as such would not meet the GHG requirement of 28 mpg (8.4 Exhaust system configuration.

2014 286

New Audi S models to feature new downsized 4.0L V8 with cylinder deactivation, energy recuperation and start-stop

Green Car Congress

This is a downsized platform from the prior 5.2L mpg US) in the S6 and 9.8 mpg US) in the S6 Avant. A sound actuator, flaps in the exhaust system, the engine shroud and a newly developed two-mass flywheel with a centrifugal force pendulum in the seven-speed S tronic also contribute to the sound and smoothness of the engine. mpg US). mpg US), a decrease of nearly 23% despite a 51 kW increase in output compared to the preceding 5.2L

2011 191

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Trending Sources

Volkswagen introduces new 1L, 3-cylinder gasoline Golf; 54.7 mpg

Green Car Congress

mpg US) (99 g/km CO 2 )—more efficient than any previous Golf with a gasoline engine. Despite its efficiency, the Golf TSI BlueMotion with the 85 kW / 114 hp downsized 999 cc EA211-series engine reaches 100 km/h in 9.7 l/100 km (52 mpg). l/100 km (51 mpg). Exhaust manifold integrated in cylinder head. The exhaust manifold of the 1.0

2015 228

Controlled Power Technologies Packages Its Switched Reluctance Systems in ‘RegEnBoost’ System for Enhanced Support for Downsizing

Green Car Congress

Power for the battery and VTES electric supercharger is not only supplied by the SpeedStart ISG but also the TIGERS exhaust driven turbo-generator. Unlike a crankshaft driven mechanical supercharger or an additional exhaust driven turbocharger, the CPT method of boosting is completely independent of engine speed and offers precise electronic control. They have also designed a 100 mpg UK (83 mpg US, 2.8 The three components of the RegEnBoost system. Click to enlarge.

2009 175

Volkswagen Emphasizes Downsizing at 30th Vienna Engine Symposium; Highlights 1.2 TSI and 1.6 TDI

Green Car Congress

Continuing to emphasize a downsizing approach, Volkswagen presented two new engines at the at the 30 th Vienna Engine Symposium (7-8 May): the 1.2-liter TSI gasoline engine and the 1.6-liter TDI diesel. The potential of internal combustion engines is far from exhausted. Downsizing is rigorously being developed in the volume segments with the 1.2 The turbocharged four-cylinder engine was completely redeveloped, and it follows the downsizing philosophy of the successful 1.4

2009 150

Downsized 4.0 TFSI for Audi S8 cuts fuel consumption 23% compared to predecessor; cylinder deactivation and start-stop

Green Car Congress

liters of fuel per 100 kilometers (23 mpg US mpg). liters per 100 km (23 mpg US), the Audi S8 is significantly more fuel efficient than its competitors, according to Audi. Audi’s principle of downsizing: “ Forced induction replaces displacement ” One twin-scroll turbocharger per cylinder bank compresses the fresh air. The twin-scroll technology prevents the exhaust gas flows from influencing each other. Audi S8 4.0

2011 179

Audi introduces new high-efficiency 2.0L TFSI based on Miller cycle; 190 hp, 47 mpg

Green Car Congress

mpg US) in the NEDC, clearly undercutting both its predecessor and comparable competitors. Thanks to this rightsizing approach, the new engine enjoys the consumption benefits of a downsizing engine in partial load operation, while at higher loads it has the advantages of a large-displacement engine. Contributing to this benefit is also the exhaust manifold, integrated in the cylinder head. Audi introduced its new series-production 2.0

2015 221

Downsized 5.5L V8 Biturbo in S 63 AMG Delivers 25% Fuel Savings Compared to Predecessor; Stop-Start is Standard

Green Car Congress

mpg US) (NEDC combined consumption, provisional figure)—a fuel savings of 25% compared to the current S63 AMG. For the first time, AMG is also utilizing the advantages of gasoline direct injection with spray-guided combustion and piezo-electric injectors: thanks to its higher thermodynamic efficiency, this technology makes more efficient use of fuel and leads to lower exhaust emissions. AMG 5.5-liter V8 biturbo engine. Click to enlarge.

2010 170

New Volkswagen Polo BlueGT with cylinder deactivation offers gasoline engine fuel economy of up to 52 mpg US

Green Car Congress

l/100 km/h (50 mpg US), equivalent to 108 g/km CO 2. l/100 km (52 mpg US), equivalent to 105 g/km CO 2. This combination of efficiency and dynamic performance is enabled by the systematic interplay of ACT, downsizing (reduced engine displacement plus direct injection and charging) and BlueMotion Technology (Stop/Start system, battery regeneration). TSI of the Polo BlueGT, an exhaust camshaft adjuster is added. Polo BlueGT. Click to enlarge.

2012 218

Opel presents new 1.0 SIDI Turbo engine at Aachen Colloquium; below 100 gCO2/km and ~59 mpg in the Adam

Green Car Congress

l/100 km (59 mpg US ). Enabling technologies include high-pressure direct fuel injection; an ultra-compact turbocharging system; continuously variable valve timing; and a lightweight aluminum construction with a cylinder head-integrated exhaust manifold. liter class which are engineered to meet customer demand for strong, downsized engine performance. The cylinder head features a water-cooled exhaust manifold integrated within the aluminum casting.

2013 192

NHTSA Modeling and Technology Projections Underlying the Proposed CAFE Target of 34.1 mpg by MY 2016

Green Car Congress

mpg and 250 g CO 2 /km for model year 2016. mpg if the automotive industry were to meet this CO 2 level just through fuel economy improvements.) ( Earlier post.). NHTSA assumes that similar vehicles will be produced through MY 2016 and technologies are added to this baseline fleet to determine what mpg levels could be achieved with technologies. Turbocharging and downsizing: 26% for cars, 15% for trucks.

2009 185

Ford Unveils Ford Fiesta for North America at Los Angeles Auto Show; 1.6L I4 with Ti-VCT Delivers Estimated 40 mpg Highway

Green Car Congress

Fiesta—available in four- and five-door bodystyles—will offer North American buyers a new choice of 15 class-exclusive technologies and projected highway fuel economy of 40 mpg, besting the Honda Fit, Nissan Versa and Toyota Yaris and Corolla. Fiesta features Twin Independent Variable Camshaft Timing (Ti-VCT) ( earlier post ) which allows the engine to be downsized for fuel economy while continuously optimizing camshaft phasing for throttle response, performance and flexibility.

VW bringing EA211 1.4L turbo direct-injection engine to Jetta range in US

Green Car Congress

This brings implementation of intelligent downsizing to more than 97% of vehicles sold by Volkswagen in the US, available across all the models on sale. The engine will be mated to either a five-speed manual or a six-speed automatic transmission: manufacturer estimated fuel economy on the highway is predicted to be 39 mpg with the six-speed automatic transmission, an improvement of 13% over the EPA estimated highway fuel economy for the previous 2.0-liter engine and 7% over the 1.8T.

2015 195

FEV analysis of automotive-scale Pinnacle opposed-piston engine finds potential for significant increases in fuel economy

Green Car Congress

The fuel economy study, using GT Power, encompassed both a naturally aspirated 1.5-liter, 3-cylinder design of the Pinnacle engine, as well as a downsized, turbocharged 750cc Pinnacle design. FEV added two additional cylinders, piping, exhaust aftertreatment, and an air cleaner to convert the model from a 250cc single cylinder into a 750 cc three cylinder engine. mpg US (6.3 mpg US (8.0 mpg US, 5.8 mpg US, 6.3 mpg US, 6.1 mpg US, 6.07

2013 199

Fiat introducing new 2-cylinder 0.9L Turbo TwinAir in 2014 MiTo mini

Green Car Congress

l/100 km (56 mpg US ), equivalent to 99 g CO 2 /km. The new TwinAir family engine combines the concept of downsizing (displacement and weight reduction) with technologies including supercharging with high-efficiency turbocharger; integration of the exhaust manifold in the cylinder head; and the new MultiAir intake valve control system. Turbocharged by means of exhaust gas turbocharger with engine load management by means of variable intake valve activation. TwinAir.

2013 245

Nissan adding new 2.0L turbo to Skyline lineup in Japan

Green Car Congress

The new turbocharged gasoline engine achieves a superior level of engine performance with maximum power output of 155kW (211ps) while improving fuel economy with its downsized displacement. km/L (32 mpg US, 7.35 In addition, all grades reduce emissions of NO x and NMHC (non-methane hydrocarbon) by 75%, achieving SU-LEV certification by emitting 75% fewer exhaust emissions than 2005 standards.

2014 221

SwRI simulations show turbocharged Scuderi Engine could reduce a standard 2011 Nissan Sentras fuel consumption by up to 35% on FTP cycle

Green Car Congress

Scuderi Group, LLC released the top-level results of a vehicle computer study that it funded and that the Southwest Research Institute (SwRI) conducted, modelling various Scuderi Split-Cycle (SSC) engine designs, including the turbocharged, downsized air-hybrid version under consideration ( earlier post ), in a computer model of a 2011 Nissan Sentra. up to 54% increase in MPG) was achievable when compared to the model Nissan Sentra using a stock engine without fuel cutoff.

2011 185

Update on the ACCESS fuel efficient engine project; simulations find up to 48.9% improvement in fuel economy over baseline

Green Car Congress

To achieve the target fuel economy improvement over the baseline V6 configuration, the team used GTDI technology for downsizing in combination with part-load lean homogeneous charge compression ignition (HCCI) operation for further fuel economy gains. SACI combustion was examined at both lean and stoichiometric operating conditions, with the use of external cooled Exhaust Gas Recirculation (EGR) for mitigation of combustion noise at high loads. FTP75 (mpg). HWY (mpg).

2013 231

Revised Nissan Juke offers 1.2 DIG-T turbocharged engine

Green Car Congress

mpg US). 1), improved low friction technologies and cooled Exhaust Gas Recirculation. As much as 85% of sales have been to first-time Nissan owners, not only making it the highest conquest model in the Nissan range but a model that comfortably outperforms the B-segment average with many of those new buyers downsizing from larger cars. Nissan introduced a significantly revised Nissan Juke compact crossover at the Geneva Motor Show.

2014 216

CPT/AVL Study: New Generation of Micro-Hybrid Technologies Can Enable More than 25% Reduction in Fuel Consumption at Lower Cost Than Full Hybrid Drive Systems

Green Car Congress

Reductions in fuel consumption and CO 2 from base 2.0-liter ELC-Hybrid to downsized 1.4L VTES + SpeedStart. CPT and AVL’s most recent work assesses the potential of a VTES equipped downsized ELC-Hybrid vehicle in combination with the CPT SpeedStart Integrated Starter Generator ( earlier post ) and the UltraBattery. Click to enlarge.

2010 185

Toyota introduces the B-segment Yaris Hybrid at Geneva; anticipating 20% of Yaris model range sales in first year

Green Car Congress

The new Yaris Hybrid, which is equipped with a version of the downsized hybrid powertrain featured in the Prius c/Aqua ( earlier post ), is a major step in the company’s full hybrid European roll-out strategy. L/100km NEDC (67 mpg US), equivalent to 79 g/km CO 2. The downsized full hybrid system combines the new 1NZ-FXE 1.5-liter gasoline engine with a lighter, more compact electric motor, transaxle, inverter and battery pack. Yaris Hybrid powertrain. Click to enlarge.

2012 207

Ford / AVL study concludes mid-level ethanol blend attractive as a long-term future fuel for use in optimized engines in US

Green Car Congress

Given the properties of the fuel blend, improved fuel efficiencies can be generated by several approaches, including downsizing/downspeeding; increased compression ratio; reduced enrichment; and the leveraging of improved efficiency at part load. Downsizing/downspeeding. This increase in BMEP can enable downsizing of the engine displacement and/or downspeeding through revised gear ratios, findal drive ratio, or shift scheduling.

2013 217

Daimler Trucks NA SuperTruck achieves 115% freight efficiency improvement over 2009 baseline; 50.2% engine BTE

Green Car Congress

mpg (19.26 The Freightliner SuperTruck uses a downsized and downsped 10.7-liter engine, a hybrid system, a Waste Heat Recovery (WHR) system, along with a number of other upgrades. The Freightliner SuperTruck features a low-back-pressure, next-generation aftertreatment system that efficiently removes NO x from the exhaust stream. The aftertreatment system features additional insulation to retain maximum heat energy in the exhaust.

2015 292

Ford to bring 20 new engines and transmissions to China and improve fleet fuel economy by more than 20% by 2015; producing the new 1.0L EcoBoost in China

Green Car Congress

The EcoBoost approach enables the downsizing engine capacity—replacing naturally-aspirated engines with much smaller units without sacrificing power output. The performance boost offered by turbocharging typically results in a 50% increase in torque,Ford says, so there is a significant opportunity to downsize capacity while still providing a potential performance benefit. mpg US) is one of the best in the segment.

2011 204

Volvo Trucks SuperTruck demonstrator improves freight efficiency by 88%, fuel efficiency by 70%

Green Car Congress

The sleek tractor-trailer combination boosted fuel efficiency by 70%—exceeding 12 mpg, with some test runs showing more than 13 mpg—in road tests, and powertrain brake thermal efficiency reached 50%. A key part of the overall efficiency gain is the downsized 11-liter Volvo engine, featuring advanced fuel injection, cooling, oil and turbo-charging systems, as well as new “wave” pistons and other improvements.

2016 199

VW launches new Sharan MPV; up to 14.3% more fuel efficient; stop-start, battery regen standard

Green Car Congress

l/100 km (47 mpg US). mpg US). In the large Sharan the downsized engine consumes on average 6.4 mpg US, 154 g/km CO 2 ). mpg US, equating to 167 g/km CO 2 ). mpg US, CO 2 emission: 136 g/km). l/100 km (42 mpg US, equating to 146 g/km CO 2 ). mpg US) in both gearbox versions; that equates to CO 2 emissions of 138 g/km. Volkswagen is launching the latest version of its Sharan MPV, equipped with new TSI and TDI engines that are up to 14.3%

2015 195

Citroën introduces first members of new 3-cylinder gasoline engine family; 1.0L and 1.2L PureTech reduce fuel consumption about 25%

Green Car Congress

mpg US) and CO 2 emissions range from 99 to 107 g/km. To achieve these results, PureTech development called for a number of changes, chief among which were: Downsizing. The exhaust manifold is integrated directly in the cylinder head, which reduces the number of parts and overall weight. mpg US). mpg US), while CO 2 emissions are a full 38 g/km lower at 99 g/km. PureTech 3-cylinder engine. Click to enlarge.

2012 235

Peugeot 208 features new generation of 3-cylinder gasoline and Stop & Start System (e-HDi) diesel engines

Green Car Congress

With five models, four of which are equipped with the new generation Stop & Start System (e-HDi), the diesel range starts at 87g/km of CO 2 (delivering fuel economy of 69 mpg US or 3.4 mpg US or 4.3 A new stage in the PSA Peugeot Citroën Group’s downsizing strategy, this new generation of engine block delivers a reduction of fuel consumption and CO 2 emissions, while offering a good level of performance for the entry-level versions. 5-door 208. Click to enlarge.

2012 204

Powertrains for the New Opel Astra

Green Car Congress

L/100 km (51 mpg US). L/100 km (48 mpg US) on average and emits no more than 129 g/km CO 2. L/100 km (56 mpg US) will be added to the range in spring 2010. mpg US). L/100 km (43 mpg US)and does not emit more than 129 g/km CO 2. Continuing Opel’s strategy of downsizing, a new 103 kW/140hp 1.4 Continuously variable valve timing is featured in all engines on both inlet and exhaust sides, except the 1.6-liter turbo. mpg US).

2009 179

Audi Introducing Three New Models at Frankfurt Show; New 1.2L A3, 3.0L TDI A4, and S5 Sportback

Green Car Congress

Downsizing is a key element of Audi’s efficiency strategy. mpg), with 127 grams of CO 2 per kilometer (204 g/mile). At the engine, a new common-rail injection system (which generates up to 2,000 bars of pressure), innovative pressure sensors in the combustion chamber, and an especially high-performance exhaust recirculating system combine to deliver an efficient and low-emission combustion process.

2009 161

Jaguar adds two new smaller forced induction gasoline engines to 2013 XF and XJ lineup; 8-speed automatic and start-stop

Green Car Congress

For the 2013 XF and XJ lineup, Jaguar is adding two new downsized forced induction gasoline powerplants: 3.0-liter V6 Supercharged and 2.0-liter i4 Turbocharged units. The turbine housing for the low inertia turbocharger is integrated with the lightweight, thin-walled exhaust manifold, shortening the engine and catalyst warm up times and reducing emissions. l/100km (26 mpg US) on the EU Combined cycle and CO 2 emissions of 207 g/km. l/100km (25 mpg US) and 216 g/km of CO 2.

2012 196

MCE-5 Development to Show Vehicle Equipped with Prototype Variable Compression Ratio Engine

Green Car Congress

L/100 km (35 mpg US) with 158 g CO 2 /km. A 2010 version of the MCE-5 VCRi engine will be equipped with GDI, optimized combustion chambers as well as the advanced management of engine temperature, of the cylinder head, pistons and exhaust manifold. L/100 km (39 mpg US), with less than 140 g of CO 2 /km. This constitutes a strong response to the durability problem of highly downsized high-loaded engines VCRi engine with two-stage turbocharger. Click to enlarge.

2009 204

Fiat Launches New 1.8L Gasoline Direct-Injection Turbo in Lancia Delta

Green Car Congress

Di Turbo Jet E5 drive torque is comparable to the one of an aspirated V6 engine which is almost twice its displacement, according to Fiat, but with significant efficiency gains through the downsizing. liters per 100 km (30 mpg US), 185 g CO 2 /km and a Euro 5 homologation. The system defines the angle and overlapping time of the valves with precision in order to generate direct air flow from the intake to the exhaust manifolds and start the turbocharger in very short times.

2009 150

U Toronto team assess the climate trade-off between reduced CO2 and increased Black Carbon from GDI engines

Green Car Congress

The upside of gasoline direct injection (GDI) engines is widely seen as being improved fuel economy coupled with an increase in specific power (especially with turbocharging), enabling significant downsizing. Less fuel-air mixing time is available with GDI engines compared to PFI engines, in which fuel mixes with the air intake upstream of the exhaust cylinder. mpg (10.99

2016 163

Hyundai Introduces i-flow Diesel Hybrid Concept at Geneva; New Blue Drive Vehicles and Technologies

Green Car Congress

mpg US) and CO 2 output of 85 g/100km. Harvested energy from hot exhaust gases is recaptured by this generator which is fitted into the exhaust manifold. The i-flow concept. Click to enlarge. Hyundai staged the global debut of its i-flow diesel hybrid concept car at the 2010 Geneva Motor Show. Fuel consumption for the hybrid is 3L/100 km (78.4

2010 185

3rd generation Mercedes-Benz M-Class SUV lineup on average consumes 25% less fuel than previous models; pilot for the energy-transparent vehicle development tool

Green Car Congress

l/100 km (39 mpg US) with 158 g CO 2 /km) and has a range of up to 1,500 kilometers (932 miles) when equipped with an optional larger tank (93 liters vs. the standard 70 liters, the latter good for 1,150 km or 715 miles). On the diesel side—now available solely as BlueTEC units with SCR aftertreatment technology) , the focus is on downsizing and the new version of the V6 CDI engine. l/100 km (35 mpg US), a 24% improvement compared to the previous ML 350 CDI 4MATIC model.

2011 192

Kia introduces 2017 Niro Hybrid Utility Vehicle, Optima Hybrid and Optima Plug-in Hybrid at Chicago

Green Car Congress

Making 103 horsepower, the new engine marks the first combination of the Atkinson Cycle, cooled exhaust gas recirculation (EGR), GDI and a long-stroke-narrow-bore specification to maximize efficiency. Efficiency and emissions are further improved via the Niro’s exhaust heat recovery system, which speeds engine warm-up by routing coolant to a heat exchanger in the exhaust system. Niro is targeting a combined fuel efficiency rating of 50 mpg (4.7

2016 150

Opel to launch 3 new engine families, 13 new engines by 2016

Green Car Congress

Focused on meeting a growing customer demand for ‘downsized’ engines offering strong power with reduced fuel consumption and CO2 emissions, the new gasoline and diesel powertrains are being progressively introduced across the Opel product range. The exhaust side shaft features cast iron gears to reverse rotational direction of the exhaust shaft. The engine retains the proven concept of a turbine-integrated exhaust manifold. mpg US) and 109 g/km CO 2.

2013 237

Researchers propose evaluating alt fuel efficiency based on energy rather than volume; impact of ethanol on vehicle efficiency and GHGs

Green Car Congress

Dedicated ethanol (or E85) engines have the promise to improve efficiency substantially over comparable regular gasoline engines through direct-injection, increased geometric CR, variable valve timing, exhaust gas recirculation, aggressive turbocharging, and downsizing and/or downspeeding. Relative changes in vehicle energy efficiency (VEE) (km/MJ) on ethanol/gasoline blends over those on gasoline for different blending levels. Credit: ACS, Yan et al. Click to enlarge.

2013 185

Eaton Highlights Range of New Products to Reduce Fuel Consumption and Emissions

Green Car Congress

Eaton said that a series of process improvements and new engine valve product designs will help engine manufacturers address issues related to engine downsizing to achieve better fuel economy and reduced emissions. The pursuit of fuel efficient vehicles is driving the development of smaller engines with a greater power density which puts more stress on the internal components like the intake and exhaust valves.

Eaton 191