BorgWarner Exhaust Heat Recovery System for hybrids can improve fuel economy by up to 8.5%

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Developed for hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs), BorgWarner’s innovative Exhaust Heat Recovery System (EHRS) can improve fuel economy by up to 8.5% The EHRS reduces mechanical losses by using the energy conserved within the exhaust gas.

2018 113

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

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A team at Monsanto and colleagues at AVL Powertrain have successfully designed and demonstrated an onboard low-temperature ethanol reformer that can be driven by exhaust heat. A paper on their work is published in the ACS journal Energy & Fuels. Engines Ethanol Fuel Efficiency Fuels

2013 103

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Study finds engines emit exhaust nanoparticles even when not fueled during engine braking

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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.

2014 134

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

2011 129

Hyundai Motor Group unveils CVVD engine technology; +4% performance, +5% fuel economy, -12% emissions

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CVVD optimizes both engine performance and fuel efficiency while reducing emissions. The valve control technology regulates the duration of valve opening and closing according to driving conditions, achieving a 4% boost in performance and a 5% improvement in fuel efficiency.

2019 112

Gen 3 Ecodiesel in 2020 Ram 1500 EcoDiesel delivers 480 lb-ft, leading fuel economy

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The all-new third-generation 3.0-liter V-6 EcoDiesel is also expected to lead the segment on fuel economy. Pricing and fuel economy ratings will be announced closer to the truck’s on-sale date.

2019 100

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.

SAE Publishes Revised J1711 Standard to Measure Exhaust Emissions and Fuel Economy of Hybrids and Plug-in Hybrids

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A revised J1711 standard from SAE International— J1711 - Recommended Practice for Measuring the Exhaust Emissions and Fuel Economy of Hybrid Electric Vehicles, including Plug-in Hybrid Vehicles (J1711 JUN2010)— provides the procedures to accurately measure exhaust emissions and fuel economy of hybrid (HEV) and plug-in hybrid electric vehicles (PHEV). Consumable fuels that are covered by J1711 are limited to petroleum-based liquid fuels (e.g.,

2010 68

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

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For improved fuel efficiency, the 2016 Pilot will also include a stop start feature—Honda’s first non-hybrid application of this technology. Keeping the valves closed in the cylinder to stop fuel supply also prevents aspiration in that cylinder.

2015 132

Ford unveils new Focus; 10% better fuel economy; focus on tech; gasoline and diesel

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The new Focus features a broad suite of Ford advanced driver assistance technologies and advanced EcoBoost gasoline and EcoBlue diesel engines offering a 10% fuel-efficiency improvement across the range. Additional underbody shielding for the central tunnel, fuel tank and rear axle.

2018 90

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.

2015 115

New 2019 Toyota Avalon hybrid boosts fuel economy 10% to 44 mpg combined

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Toyota estimates that the 2019 Avalon Hybrid will boost fuel economy by up to 10% over its MY 2018 predecessor, from 40 mpg (5.88 Furthering fuel efficiency are new multi-hole nozzle direct injectors (six holes per injector). Estimated combined cycle fuel economy is 26 mpg (9.04

2018 90

Environment Canada/MECA team assesses black carbon emissions in GDI engine exhaust; evaluation of prototype gasoline particulate filter

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The major difference between the PFI and GDI engines lies in the fuel injection method and mixture preparation. Two fuels were used, a Tier 2 certification gasoline (E0) and a splash blended 10% by volume blend of ethanol with certification gasoline (E10).

2014 103

GM to introduce strong hybrid version of Malibu; combined fuel economy above 45 mpg; leverages Volt

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Using technology from the 2016 Chevrolet Volt propulsion system ( earlier post ), Malibu Hybrid will offer an estimated combined fuel economy rating exceeding 45 mpg (5.22 EGHR improves engine warm up and assures consistent fuel economy performance in cold weather.

2015 126

ORNL researchers quantify the effect of increasing highway speed on fuel economy

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Huff Fuels, Engines and Emissions Research Center, Oak Ridge National Laboratory. It also offers consumer information and advice pertaining to vehicle fuel economy and energy-related issues such as driving tips. drop in fuel economy due to traveling 80 mph rather than 70 mph.

2013 138

DOE awards $17M to FY 2014 SBIR Phase II projects; includes Si/graphene anodes, motor windings, exhaust treatments

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The selected projects include 6 vehicle-related technologies and 2 hydrogen and fuel cell technologies, as well as new hydropower, heat pump, solar and manufacturing technologies. Hybrid Electric Turbocharger for Exhaust Energy Recovery and Transient Lag Reduction. The reduced fuel consumption will extend the effective range of the turbo vehicle. A Novel Exhaust after Treatment Catalyst. FY 2014 SBIR Phase II hydrogen and fuel cell projects.

2014 88

PowerDriver simulations predict thermoelectric exhaust waste heat recovery output of 300W, -2.5% in fuel consumption; prototyping begins

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The European Union-funded PowerDriver project—a two-year, €3-million (US$4-million) research project initiated in February 2012 to turn exhaust gas waste heat into electricity using thermoelectric generator (TGEN) technology—has completed simulation work on on a potential automotive application. Results suggest TGEN output of 300W and equivalent fuel saving over the NEDC drive cycle of 2.5%. Fuel Efficiency Nanotech Thermoelectrics

2013 74

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.

2014 149

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.

2016 85

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 120

New 3rd generation Audi TT diesel offers fuel economy of 56 mpg

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Standard fuel consumption is 4.2 seconds; top speed is 250 km/h (155 mph); fuel consumption of 6.8 Controllable flaps in the exhaust system modulate the sporty sound and make it even richer. Diesel Fuel Efficiency 3 rd generation Audi TT. Click to enlarge.

2014 131

ORNL study quantifies fuel economy costs of common driver practices and vehicle alterations

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Researchers at Oak Ridge National Laboratory (ORNL) have quantified the fuel economy effects of some common driver practices and vehicle accessories or alterations—including underinflated tires, open windows, and rooftop and hitch-mounted cargo. The compact sedan, a 2009 Toyota Corolla with a 1.8-liter four-cylinder engine, also suffered as its fuel economy dipped 22% from 42.5 Using a rooftop cargo box with the SUV decreased fuel economy from 24.9

2014 101

SwRI develops D-EGR demonstrator highlighting fuel-efficient, cost-effective engine; 10% and above fuel economy improvements

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D-EGR is an engine and control concept that combines fuel reforming to produce hydrogen with high levels of exhaust gas recirculation (EGR) to achieve very high levels of thermal efficiency. Engines Fuel Efficiency Vehicle Systems

2014 120

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

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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). MPI mixes fuel and air earlier, enabling complete combustion in the chamber for greater efficiency at low engine loads.

2017 85

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 piston crowns are dished to help maintain stable combustion and to optimize distribution of the stratified fuel charge from the direct injector in each cylinder. Fuel system.

2014 132

Researchers find HEV under real-world conditions delivers significantly greater fuel economy benefits than EPA “sticker” values

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In other words, they found that they real-world fuel economy benefit of adoption of HEVs may be better than for estimates based on EPA “sticker” fuel economy alone. There is very little quantitative data on the fuel and emissions benefits of HEVs during real-world driving.

2015 110

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.,

2016 95

GM: new Sierra 5.3L V-8 EcoTec3 highway fuel economy tops Ford EcoBoost V-6

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In addition to highway fuel economy estimates that are 2 mpg higher than a 2013 Ford V8 pickup equipped with a 5.0L 2WD Pickup truck fuel economy comparisons. Fuel economy. Source: GM, Ford, Model Year 2013 EPA Fuel Economy Guide. 2014 5.3L

Sierra 115

ORNL study finds multi-mode RCCI can offer 15%+ fuel economy improvements across multiple light-duty driving cycles

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Drive cycle fuel economy for PFI, CDC, and multi-mode RCCI operation. Fuel usage over the drive cycles showed that nearly equal amounts of gasoline and diesel fuel would most likely need to be carried on board for RCCI multi-mode operation, which requires two fuels.

2015 99

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%

2016 95

ICCT: incremental technology can cut vehicle CO2 by half and increase fuel economy >60% through 2030 with ~5% increase in price

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l/100 km) in 2016, the The ICCT team assessed increased consumer label fuel economy (as opposed to the regulatory test fuel economy) to 35 mpg (6.71 EPA estimated the associated costs of cooled exhaust gas recirculation at approximately $216 per vehicle.

2017 98

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

2013 106

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

2016 81

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. naturally aspirated, port fuel injected V6.

2013 92

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

2013 76

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.

2012 104

Environment Canada study finds vehicle exhaust a significant source of isocyanic acid; suggests consideration of new emission standard

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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. mg kg fuel –1 and were significantly higher than previous biomass burning emission estimates. Automobile exhaust is also a known source of inorganic acids such as nitric (HNO 3 ) and nitrous (HONO) acids.

2013 74

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.

2016 85

JCB New Ecomax T4 Engine Uses Ricardo Low Emissions Combustion Technology; Tier 4 Interim Level Emissions With No Exhaust Aftertreatment

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This technology enables the elimination of exhaust aftertreatment and provides a cost-effective, durable and high fuel economy solution for mid-range off-highway engine customers. The JCB EcoMax T4 Tier 4 engine. Click to enlarge. JCB introduced its new ‘Ecomax T4’ 4.4

2010 93

Study finds high exhaust temperatures within NTE operation for heavy-duty diesels with aftertreatment systems contribute to high nanoparticle concentrations

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The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. Although there is a great deal of effort focused on the engine control strategies for combustion-based reduction of both, actual deployment is limited due to the well-known trade-off between the two criteria pollutants (reducing one increases the other) as well as a fuel economy penalty incurred with some in-cylinder technologies, the researchers note.

2012 76

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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Split, parallel, cross-flow cooling with integrated exhaust manifold. Cycle-based CAE analysis of fuel economy contribution of critical technologies. This entails overall lean homogeneous combustion with early primary injection and an air/fuel ratio of ~20-30:1. The 2.3L

2014 109

Study shows simultaneous lower emissions and improved fuel economy with Fischer-Tropsch diesel

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report not only the superior emission characteristics of the Fischer–Tropsch fuels, but also evidence that higher exhaust gas recirculation and lower excess air ratios will be a key concept of both engine and aftertreatment optimization for further fuel consumption improvement. In addition, differences in combustion phenomena between Fischer–Tropsch fuels and the baseline diesel fuel were observed by means of a single-cylinder engine with optical access.

2012 81

Kenworth’s latest T680 Advantage gains up to 10% in fuel efficiency; driver assistance systems for fuel economy

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The latest Kenworth T680 Advantage—Kenworth’s fuel-efficiency leader—has gained up to 10% in fuel efficiency compared to a standard Kenworth T680 built in 2013. The 10% gain for the heavy-duty truck equates to a yearly savings of more than $4,600 in fuel per truck for the average long-haul operation. powertrain combination of the latest PACCAR MX-13 engine with the Eaton Fuller Advantage 10-speed automated transmission, and fuel-efficient drive axles.

2015 71