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

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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 Exhaust system configuration. Fuels Lubr.

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Toyota implements Atkinson cycle in non-hybrid ESTEC engine; up to 38% thermal efficiency and improved fuel economy

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The result of their work, presented in papers this spring at the SAE 2014 World Congress, the Vienna Motor Symposium, and the JSAE Annual Congress, is the new 1.3-liter ESTEC (Economy with Superior Thermal Efficient Combustion) in-line 4-cylinder Gasoline Engine (1NR-FKE).

2014 23

Trending Sources

Tenneco/Gentherm showcasing prototype of thermoelectric generator for waste heat recovery; targeting 5% fuel economy improvement

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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. Gentherm is supplying modular, cylindrical-shaped thermoelectric cartridges that convert waste heat from the exhaust into electricity. Fuel Efficiency Thermoelectrics

Pinnacle’s opposed-piston scooter engine can meet NOx target with lean operation and ignition delay; little fuel economy hit

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Further, Pinnacle noted, recently developed hardware designed for additional lean limit extension is under test. For such small vehicle applications, manufacturers are seeking a fuel-efficient means of reducing engine-out NO x to avoid the cost of implementing a 3-way catalyst and closed-loop-controlled fuel injection system. First, lower temperature, meaning less heat loss, more efficient combustions, better fuel economy.and, fortuitously, lower NO x.

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

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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 fuel economy benefits of up to 42.6% FEV conducted three programs to assess fuel economy potential; technical and manufacturing feasibility; and cost. The design merits continued development for automotive application.

Major refresh on 2015 Honda CR-V with new Earth Dreams powertrain provides fuel economy gain of up to 12%

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The 2015 CR-V features increased EPA fuel economy ratings of 27/34/29 mpg (8.7/6.9/8.1 The CR-V’s 2.4-liter engine has a lighter-weight die-cast aluminum cylinder block with a main-bearing single cradle design that creates a rigid assembly to help minimize noise and vibration.

2016 Mazda CX-9 shows 32% improvement in EPA-estimated fuel economy over predecessor; SKYACTIV-G 2.5 turbo

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Mazda North American Operations released EPA-estimated fuel economy 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.

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

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Robert Bosch LLC, AVL Powertrain Engineering and partners including the University of Michigan are working on a four-year, $24-million US Department of Energy (DOE)-supported project— Advanced Combustion Concepts—Enabling Systems and Solutions (ACCESS)—to achieve a 30% fuel economy improvement in a gasoline-fueled light-duty vehicle without compromising performance while also meeting SULEV emission standards. Design. Engines Fuel Efficiency

New Chrysler 300 Luxury Series sedan mates 8-speed automatic to V6 Pentastar; up to 17% improvement in fuel economy

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Designed to be the most fuel-efficient Chrysler flagship sedan yet, the new 2012 Chrysler 300 Luxury Series combines an eight-speed automatic transmission with the 292 hp (218 kW) 3.6-liter Pentastar V-6 engine to deliver 31 mpg US highway (7.6 The new model delivers up to a 17% fuel economy improvement compared with the previous generation six-cylinder Chrysler 300 AWD models equipped with 5-speed transmissions. Engines Fuel Efficiency Transmissions

New 7th-generation Hyundai Sonata updates design, tweaks powertrain

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design language, stiffer body structure, better ride quality, reduced noise, vibration and harshness and advanced safety and convenience features. Theta II featured numerous design enhancements over its predecessor, beginning with a three-stage variable induction system (VIS) which automatically adjusted the volume of the air sucked into the combustion chamber to create an air-to-fuel mix optimized for varying engine load conditions. Engines Fuel Efficiency

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Renault introducing three Energy engines in the Mégane Collection 2012; fuel economy up to 67 mpg US

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The Energy dCi 110 diesel offers fuel consumption of 3.5 The 1.2-liter Renault Energy TCe 115 is the first Renault gasoline engine to feature direct fuel injection and turbocharging for fuel-efficient performance. This in turn results in lower fuel consumption and CO 2 emissions.

MAHLE study finds its Turbulent Jet Ignition pre-chamber initiated combustion system can deliver HCCI-like fuel economy in a conventional PFI engine

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Computer-generated image of the Turbulent Jet Igniter, designed to replace the spark plug in a modern spark ignition combustion system. The switching of combustion modes limits fuel economy improvements and maximum compression ratio for knock avoidance. Engines Fuel Efficiency

Corning expands light-duty vehicle exhaust filter capacity in Germany

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Diesel vehicle manufacturers are striving for greater engine performance and fuel economy while meeting Euro 6 emissions standards under a myriad of driving conditions. Featuring an optimized material microstructure, the filter’s highly porous walls enable higher catalyst coatings to address tighter emissions limits without impacting fuel economy.

ACCESS project targeting 30% improvement in fuel economy and SULEV emissions in light-duty gasoline engine; multi-mode SI/HCCI combustion

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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.

Toyota introduces 7th generation Camry for 2012 with improved fuel economy and performance across all models; ~39% jump in EPA city cycle fuel economy for the hybrid

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The projected city/highway/combined fuel economy for the LE model equates to 5.47, 6.03 Lighter overall vehicle weight also contributes to better performance and fuel economy. Eco mode maximizes fuel savings across all driving conditions. 2012 Camry Hybrid.

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

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The system was realized with the new 1.4-liter gasoline-fueled TSI of the Polo BlueGT. The TSI develops a power output of 103 kW / 138 hp, with a combined fuel consumption of 4.7 If the Polo BlueGT is ordered with the optional 7-speed dual clutch gearbox (DSG), fuel consumption drops further to 4.5 Shutting down the second and third cylinders under low- and medium-load states reduces fuel consumption in the EU driving cycle by about 0.4 Polo BlueGT. Click to enlarge.

Viable exhaust-driven on-board ethanol reforming for improvements in fuel economy and emissions

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Schematic diagram of the successful “shoebox” reformer design and a picture of the core, after insertion of the catalyst. A paper on their work is published in the ACS journal Energy & Fuels. A low-cost, low-weight, compact design capable of being packaged in a vehicle exhaust train.

INFINITI unveils new QX50 with variable compression ratio engine; 35% improvement in fuel economy over prior FWD V6

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An innovative combustion engine design, the 2.0-liter VC-Turbo engine adjusts its compression ratio to optimize power and efficiency. Equipped with the VC-Turbo engine, the QX50 delivers gasoline fuel economy of 27 mpg (US combined, front-wheel drive; 26 mpg all-wheel drive).

NSF and DOE form Partnership on Advanced Combustion Engines; goal 25-40% better LDV fuel economy and 55% BTE in heavy-duty engines; $12M in awards for FY 2012-2014

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The high-level performance goals of the Partnership are a 25-40% improvement in fuel economy in a light-duty vehicle (LDV) and achieving 55% brake thermal efficiency (BTE) in heavy-duty engine systems. Liquid fuels have dominated transportation systems for over a century and will continue to do so for decades to come. bio-derived) fuels have the potential to dramatically increase fuel economy. Engines Fuel Efficiency Low Temperature Combustion

GM develops integrated exhaust manifold cylinder head for 3.6L V6 direct injection engine; improvement in performance, fuel economy, emissions and noise

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The reduced complexity of the design of the new integrated exhaust manifold cylinder head ( bottom ) compared to the old ( top ). GM has combined the exhaust manifold with the cylinder head into a single aluminum casting in the 2012 Camaro 3.6L Engines Fuel Efficiency

FCA US upgrades 3.6L Pentastar V-6; 2-step VVL, cooled EGR; up to 6% better fuel economy

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Pentastar, first introduced in 2009 ( earlier post ), was the first of an all-new line of V-6 engines intended to improve fuel efficiency across the Chrysler, Jeep and Dodge lineup. Increased fuel-efficiency was a key impetus in the development of the redesigned 3.6-liter Pentastar V-6 engine.

New BMW 3 Series Gran Turismo improves fuel economy by up to 14%

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The new version of the Gran Turismo offers three new gasoline and five diesel engines with noticeably higher output; all the engines are turbocharged and burn up to 14% less fuel. The reductions in fuel consumption and CO 2 emissions range from 4.5%

Honda includes stop-start system in new 2016 Honda Pilot for improved fuel economy, new 9-speed

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The 2016 Pilot, launching at Honda dealerships nationwide this summer, is the third generation of Honda’s three-row midsize SUV to be designed, developed and manufactured in the US. Keeping the valves closed in the cylinder to stop fuel supply also prevents aspiration in that cylinder.

Fraunhofer characterizes Alphabet Energy thermoelectric PowerCard; up to 5% fuel economy improvement in automotive

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The PowerCard generates power from exhaust source temperatures ranging from 400-600 °C using Alphabet Energy’s proprietary thermoelectric materials: tetrahedrite and magnesium silicide stannide. connected, semiautonomous) while also achieving fuel efficiency standards (e.g.,

Hagens Berman files class-action fuel economy and emissions lawsuit against Fiat Chrysler and Cummins over SCR defect in RAM 2500 and 3500 diesels

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The defect leads to lower fuel economy, non EPA-compliant emissions levels, and costly and frequent vehicle repairs, the complaint charges. When the SCR system breaks down, the filter gets clogged, requiring more fuel to be injected to burn it off, according to the complaint. This reduces the truck's fuel economy, according to the complaint.

Tula Technology reports up to 18% fuel economy gain in GM 6.2L V8 using Dynamic Skip Fire technology; emissions benefits too

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In a paper presented at the 2016 SAE World Congress, Tula Technology, developer of Dynamic Skip Fire (DSF) cylinder deactivation technology, reported significant fuel economy gains of up to 18% over a conventional GM 6.2-liter V8 by operating using Dynamic Skip Fire.

Chevron introduces new category of heavy-duty motor oil for severe duty applications; improved fuel economy

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division, maker of the Delo brand of heavy duty engine oils, lubricants and coolants, unveiled a new category of heavy duty motor oil designed to address the growth of severe duty applications in on- and off-highway markets. In order for engines to last as long as they’re designed to, we need to reassess maintenance practices for this type of operations. Improved fuel economy over SAE 15W-40 conventional oils. Chevron Products Company, a Chevron USA Inc.

Ford to offer cylinder deactivation for 1.0L EcoBoost in 2018; 6% fuel economy boost; global first for a 3-cylinder

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liter EcoBoost gasoline engine with innovative cylinder deactivation technology for further reducing CO 2 emissions and improving fuel efficiency by up to 6%. EcoBoost with cylinder deactivation will debut in early 2018, becoming the first production three-cylinder engine with that fuel-saving feature. Engines Fuel Efficiency Vehicle SystemsFord will offer the multi-award-winning 1.0‑liter

SAE REX: PHEVs and REEVs could open door for advanced combustion regime engines

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The REEV or PHEV also may present opportunities for more novel power sources such as turbines (Wrightspeed), fuel cell stacks (Nissan) or aluminum-air batteries (Phinergy and Arconic), speakers suggested. In his introductory keynote, Michael Berube, Vehicle Technologies Office Director, Office of Energy Efficiency and Renewable Energy, noted the importance of both engine and fuel technology in a PHEV scenario. If PHEVs are going to play a big role, what is the fuel source for that?

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Cummins ATLAS light-duty diesel surpasses fuel economy targets, with criteria emissions lower than Tier 2/Bin 2

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The Advanced Technology Light Automotive Systems (ATLAS) program ( earlier post ) was initiated to develop a commercially viable diesel engine for the half-ton pickup truck market that is capable of meeting future Tier 2 Bin 2 emissions regulations and Corporate Average Fuel Economy (CAFE) and stringent greenhouse gas (GHG) requirements out to the year 2025. Test cycle fuel economy (mpg). This is approximately a 53% increase in CAFE fuel economy at 28.9

New 2013 Nissan Sentra delivers 34 mpg combined fuel economy, up to 40 mpg highway

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Nissan’s all-new 2013 Sentra, featuring a new 1.8-liter engine and next-generation Xtronic CVT with sub-planetary gear, offers combined fuel economy of 34 mpg (6.9 Fuel economy is rated at 30 mpg (7.84 Fuel Efficiency2013 Nissan Sentra. Click to enlarge.

Opel launching new all-aluminum 1.0L 3-cylinder turbo for Adam; fuel economy and refinement

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SIDI Turbo (Spark Ignition Direct Injection) generates more torque throughout its operating range than equally powerful, higher displacement engines, while fuel efficiency is improved by 20% compared to Opel’s current 1.6-liter naturally aspirated power unit. Engines Fuel Efficiency

2011 Highlander Hybrid Equipped with Larger Engine, Improved Fuel Economy

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Among the changes, the Highlander Hybrid debuts a new, more powerful 3.5-liter V6 for 2011, replacing the previous 3.3-liter V6, while also improving fuel economy. The 2011 Highlander Hybrid receives EPA estimated fuel economy ratings of 28 mpg city and 28 mpg highway (8.4 The 2010 Highlander Hybrid carries an EPA fuel economy rating of 27 mpg city, 25 mpg highway. 2011 Toyota Highlander Hybrid. Click to enlarge.

BorgWarner to Supply VTG Turbochargers for Deere Off-Road Engine Emission Compliance, Improved Fuel Economy

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BorgWarner VTG turbochargers are the first to help industrial diesel engines for the off-highway market meet new emissions regulations while improving fuel economy. With cooled EGR, exhaust gasses are cooled and introduced back into the fresh air stream to reduce NO x emissions.

GM details 2016 Chevrolet Malibu Hybrid powertrain design and operation

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Development was guided by four main objectives: Increased fuel efficiency under US EPA 5 cycle fuel economy test conditions. The new engine is fitted with an exhaust gas heat recovery (EGHR) system.

Saudi Aramco team finds dual-fuel Octane-on-Demand concept can outperform E30 gasoline

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The concept of using a second, high octane fuel on demand to augment the performance of a standard gasoline fuel reaches back to the 1940s, with a recent resurgence in interest generated by the need to increase engine efficiency. Engines Fuel Efficiency Fuels High Octane Fuels

2017 46

Ford moving to vehicle testing with advanced 2.3L MiGTDI engine research project; Tier 3 SULEV30 target with 25% fuel economy improvement

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1, and the engine is designed to run on 98 RON gasoline. Split, parallel, cross-flow cooling with integrated exhaust manifold. Cycle-based CAE analysis of fuel economy contribution of critical technologies. Emissions Engines Fuel Efficiency The 2.3L MiGTDI engine.

Achates Power building 2.7L opposed-piston light-duty engine; exceeding CAFE 2025, Tier 3 targets at lower cost

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six-piston) light-duty version of its opposed piston engine (OPE) in both diesel- and gasoline-fueled versions. it does not make use of more advanced technology elements under consideration for lowering the fuel consumption of combustion engines.

2017 46

Thermoelectric Generator Integrated Into Muffler; Up to 5% Improvement in Fuel Economy Possible

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Researchers from the Berner Fachhochschule and EMPA, a Swiss research and services group, are developing a thermoelectric generator for vehicle waste heat recovery that is integrated in the muffler, rather than being installed as a separate thermoelectric generator (TEG) unit on the exhaust line.

Qoros Auto unveils drivable engineering development car with QamFree engine; near +50% boost in power & torque, -15% fuel consumption

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This results is much more precise and completely customizable control over valve duration and lift, on both the intake and exhaust sides. The benefits are not confined to significant performance improvements and better fuel economy. Engines Fuel Efficiency

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