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

Volkswagen Millerized 1.5 TSI ACT BlueMotion gasoline engine offers diesel-like fuel economy; derivatives may be applied in hybrid systems

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Volkswagen has developed and deployed a gasoline engine that offers diesel-like fuel economy but is significantly cheaper to buy. TSI ACT BlueMotion delivers 96 kW / 130 PS with combined fuel consumption of 4.8 Engines Fuel Efficiency Vehicle Systems

2018 112

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 102

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 or 6 kg per engine.

2011 129

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

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At the Los Angeles Auto Show, INFINITI revealed the all-new QX50—a premium mid-size SUV featuring the first production application of the VC-Turbo variable compression ratio engine, transforming on demand. The Atkinson cycle is commonly used in hybrid engines to maximize efficiency.

2017 83

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 88

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. Engines. An integrated intake manifold for optimized engine breathing.

2018 88

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

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Performance of the new ESTEC engine (1NR-FKE) compared to the current 1NR-FE engine applied in the Yaris. The Atkinson cycle with a high compression ratio is a common approach that hybrid vehicle engines use to enhance thermal efficiency. Engines Fuel Efficiency

2014 118

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

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FCA has significantly its 3.6-liter Pentastar engine for MY 2016. 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. improvement in fuel economy.

2015 113

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

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The 2016 Pilot features a new 3.5-liter, direct-injected i-VTEC V-6 engine with two-stage Variable Cylinder Management (VCM) cylinder deactivation technology. Keeping the valves closed in the cylinder to stop fuel supply also prevents aspiration in that cylinder.

2015 131

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 engine with start/stop. Engine and Drive Unit. —Jesse Ortega, Chevrolet Malibu chief engineer.

2015 123

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. Engines Fuel EfficiencyJohn F. Thomas, Brian H.

2013 136

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 Cost of the new engine relative to gasoline baseline.

2014 148

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

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Southwest Research Institute (SwRI) has built a demonstrator vehicle, based on a 2012 Buick Regal GS, incorporating the latest D-EGR (dedicated EGR) technology ( earlier post ), an outgrowth of SwRI’s HEDGE (High Efficiency Dilute Gasoline Engine) consortium projects ( earlier post ).

2014 119

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 83

Report: Mazda seeking 30% boost in fuel economy with HCCI SkyActiv 2 engines around 2020

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Automotive News reports that Mazda plans a second generation of SkyActiv engines around 2020 that would achieve 30% better fuel economy than the current line of Skyactiv engines. The Skyactiv 2 gasoline and diesel engines will focus on improved internal combustion, said Mitsuo Hitomi, executive officer in charge of powertrain development, during a briefing at Mazda’s Yokohama technical center.

2014 76

CPT, TU Wien study finds 48V mild diesel hybrid cuts engine-out NOx 9%, 4.5% fuel economy improvement

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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 fuel economy and CO 2 benefits of diesel engine technology. —Paul Bloore, CPT’s manager responsible for applications engineering and strategic projects.

2017 60

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.

2014 130

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 Advanced engines. Based on updated engineering teardown analysis by FEV, ICCT reduced these costs to $91–$185.

2017 96

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

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EcoTec3 V-8 engine ( earlier post ) equipped with direct injection, cylinder deactivation (AFM) and variable valve timing to achieve EPA estimates of 16 mpg city (14.7 In addition to highway fuel economy estimates that are 2 mpg higher than a 2013 Ford V8 pickup equipped with a 5.0L

Sierra 113

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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MiGTDI engine. Ford’s approach to the project was to engineer a comprehensive suite of gasoline engine systems technologies, including: Aggressive engine downsizing in a mid-sized sedan from a large V-6 to a small I-4. The engine. Emissions Engines Fuel Efficiency

2014 107

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. I4 Ecotec engine. Engine configuration.

2013 90

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. Their paper is published in the International Journal of Engine Research. During RCCI-only operation, fuel usage was found to be between 57 and 69% gasoline. Dual-fuel RCCI injection strategy.

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. Considerable efficiency gains have been made with the new engines, despite their increased output.

2016 93

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 SUV, a 2009 Ford Explorer with a 4-liter V6 engine, was also tested while towing an enclosed trailer. Using a rooftop cargo box with the SUV decreased fuel economy from 24.9 Behavior Fuel Efficiency

2014 101

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

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The new TT and TTS models will be available with three different four-cylinder engines with turbocharging and direct injection. Standard fuel consumption is 4.2 seconds; top speed is 250 km/h (155 mph); fuel consumption of 6.8 Diesel Fuel Efficiency

2014 131

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. 16V engine. Engines Fuel Efficiency

2012 118

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% configuration of the engine. FEV is also supporting Pinnacle on those initial versions of the engine. Fuel economy. To predict fuel economy for the baseline 1.5L

2013 78

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

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For the target market (the Asian scooter market), the low NO x capability of the Pinnacle engine provides a significant cost benefit to manufacturers. 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. Four engine control modes were evaluated with the goal of reducing NO x and minimizing fuel economy impact.

2013 80

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. —Bob Fascetti, vice president, Global Powertrain Engineering, Ford. —Denis Gorman, powertrain engineer, Ford of Europe. liter engine.

2016 79

Volkswagen boosts Beetle Turbo and Jetta GLI with EA888 Gen 3 engine; more power, improved fuel economy

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The most notable of these is fitment of a new version of the EA888 Gen 3 2.0-liter turbocharged and direct-injected TSI gasoline engine. The new engine delivers a manufacturer-estimated improvement in fuel efficiency for the Beetle models of between 4-8% percent on the combined cycle and by up to 9% percent on the city cycle. The new engine produces 210 horsepower (157 kW), an increase of 10 hp over the previous Gen 2 TSI engine. Engines Fuel Efficiency

2013 93

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

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Opel will introduce the first in an all-new modular family of small-displacement three- and four-cylinder gasoline direct injection engines at the upcoming Frankfurt International Motor Show next month. Matthias Alt, Opel’s Chief Engineer, Small Gasoline Engines. The new 1.0L

2013 103

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. —Doug Crane, Director of Thermoelectric Engineering, Alphabet Energy.

2016 93

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

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. Conventional engine Highlander. 2011 Toyota Highlander Hybrid. Click to enlarge.

Ford launching major new product push in Europe; fuel economy and 1.0L EcoBoost engine; first Ford full hybrid car for Europe

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Ford projects that two-thirds of all the company’s vehicles in Europe will be leaders, or among the very best, in terms of fuel efficiency by 2013. The 1.0-liter EcoBoost is the most power-dense production engine the company has ever produced.

2012 114

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 83

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. This leads to the potential for wetting the cylinder wall in the GDI engines. Climate Change Emissions Engines Fuel Efficiency Vehicle Systems

2014 102

Pinnacle 4-stroke opposed-piston SI engine shows fuel economy improvements of between 30-60% at light loads, 12-30% at medium loads over conventional

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MJ/kg) (4000 RPM) between 250cc Pinnacle and 200cc poppet valve engine. Net indicated efficiency of the Pinnacle Opposed-Piston engine, CR = 15:1, 87 Octane. Pinnacle Engines’ 4-stroke opposed-piston engine. —Tony Willcox, Pinnacle Engines. Engines

2012 128

BorgWarner suggests Valve-Event Modulated Boost system can offer 6-17% fuel economy benefit over already downsized and turbocharged engines

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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. Christopher Thomas, BorgWarner VP, Advanced Engineering, Engine Group and VP, Advanced Engineering, Drivetrain Group presented the basic concepts of VEMB and current BorgWarner test results at the recent SAE 2012 High Efficiency IC Engine Symposium.

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. base engine to begin research, and from there, the evolution began. Test cycle fuel economy (mpg).

2015 71

ADEPT project to apply gasoline engine HyBoost system to diesel; 48V architecture; full hybrid fuel economy at much lower cost

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The developers of the successful gasoline-engine HyBoost project ( earlier post )—Ricardo, Ford Motor Company, Control Power Technologies (CPT) and the European Advanced Lead Acid Battery Consortium (EALABC)—will be joined by Faurecia Emissions Control Technologies UK Ltd and University of Nottingham to apply the intelligent electrification concept for the first time to a diesel vehicle (a Ford Focus). Diesel Fuel Efficiency Hybrids Vehicle Systems

2013 81

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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Class-action law firm Hagens Berman Sobol Shapiro has filed a new class-action lawsuit against Fiat Chrysler (FCA) and Cummins charging that the automaker knowingly sold more than 135,000 RAM 2500 and 3500 trucks over the past four model years equipped with a Cummins diesel engine with a defect in the selective catalytic converter (SCR) system used for NO x control. This reduces the truck's fuel economy, according to the complaint. Diesel Emissions Engines

2017 64