Mazda's SkyActiv-X: diesel fuel economy from gasoline engine

Green Car Reports

The internal combustion engine, now more than 200 years old, will be with us for a long time to come yet. combustion cycle HCCI Fuel Economy SKYACTIVPowering more than 1 billion vehicles on the planet and almost 100 million new ones each year, it is the default way to move vehicles along the world's roads. With its carbon emissions now conclusively implicated in climate change, electric.

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

Green Car Congress

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

Studies highlight effects of different gasoline components on fuel economy, combustion and emissions

Green Car Congress

Researchers at Jilin University (China) have investigated the effect of gasoline components on fuel economy, combustion and emissions in a GDI (gasoline-direct-injection) engine. 2018a) is published in the journal Fuel , the second (Han et al.

2018 88

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

Green Car Congress

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. Diesel Driver Assistance Systems Engines Fuel Efficiency

2018 88

Will Fuel Economy Rules Require Future Cars To Use Premium Gas?

Green Car Reports

Carmakers are pursuing continual fuel-economy gains to meet the Corporate Average Fuel Economy (CAFE) standard of 54.5 Their engineers work to squeeze every last bit of efficient from cars and trucks, but so far there's been little consideration of the fuel itself. Some efficiency-focused upgrades to standard gasoline engines. Gasoline Fuel Economy octane

2015 71

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 Cost of the new engine relative to gasoline baseline.

2014 148

EPA fuel economy report finds weight and power leveling off, footprint stable

Green Car Congress

EPA recently released the latest edition of its annual report Light-Duty Automotive Technology, Carbon Dioxide Emissions and Fuel Economy Trends. The report is the authoritative reference for real-world fuel economy, technology trends and tailpipe carbon dioxide emissions, for new personal vehicles sold in the US every year since 1975. The report found that fuel economy for the US fleet continues to improve. Pickup trucks increased fuel economy by 0.1

2018 87

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

Green Car Congress

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

Green Car Congress

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

Mazda Predicts Further 30-Percent Efficiency Gain For Next SkyActiv Engines

Green Car Reports

While other manufacturers have turned to turbocharging and hybrids to boost fuel economy, Mazda has tried to squeeze the most it can out of unassisted internal-combustion engines. The company's SkyActiv line of efficiency-focused engines rely solely on tuning and some technical tricks to maximize gas mileage. SkyActiv engines have largely lived up. Fuel Economy SKYACTIV gasoline engines

2015 81

How Mazda's SkyActiv-X engine, based on HCCI, actually works (video)

Green Car Reports

In 2019, Mazda will introduce a gasoline-powered Homogeneous Charge Compression Ignition engine, dubbed Skyactiv-X, that the automaker promises will offer huge strides in efficiency and fuel economy. Gasoline HCCI Engines gasoline engines

2017 85

Sandia, TUD optical diagnostic helps reduce emissions while improving fuel economy

Green Car Congress

Initially, the researchers have focused on the combustion of liquid fuel sprays found in engines, where the extreme pressures and temperatures create an environment that is optically challenging. The network promotes collaboration among engine researchers around the world.

2017 78

2015 Ford F-150 offers highest EPA-estimated fuel economy among full-size gasoline-powered pickups

Green Car Congress

The new 2015 Ford F-150 ( earlier post ) 4x2 with Ford’s 2.7-liter EcoBoost engine has EPA-estimated ratings of 19 mpg city, 26 mpg highway and 22 mpg combined (12.4, l/100 km, respectively)—the highest EPA-estimated fuel economy ratings of any gasoline-powered full-size pickup sold in America. That is 5% to 29% better than current F-150 models, depending on engine and driveline configuration on the combined cycle.

2014 85

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

Green Car Congress

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

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

Green Car Congress

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

Study finds catalyzed gasoline particulate filters effective at reducing particulate and PAH emissions from GDI engines

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The researchers assessed the gaseous, particulate, and genotoxic pollutants from two current technology gasoline direct injection vehicles when tested in their original configuration and with a catalyzed gasoline particulate filter (GPF). Emissions Engines Fuel Efficiency Health

2018 113

UPS updates 125 Workhorse E-GEN series hybrid electric step vans with smaller genset engine for better fuel economy

Green Car Congress

UPS announced an update to 125 Workhorse E-GEN series hybrid electric delivery trucks that improve fuel economy as part of the company’s broader Rolling Laboratory approach. A compact, quiet-running 650cc 2-cylinder engine replaces the previous 2.4L

2016 78

Ford Engine Power, MPG Figures Tested Using Different Fuels

Green Car Reports

Most buyers likely assume that the conditions for rating a new car's fuel economy and engine performance are identical. For at least one carmaker--Ford--and possibly others as well, that turns out not to be the case: Different gasoline formulations are used to test gas mileage than are used for engine. Green E10 EPA Ratings Fuel Economy Gasoline horsepower octaneIt's all about the asterisk, it turns out.

2015 72

Electrification, sure, but gasoline engines will endure: supplier

Green Car Reports

Increasingly stiff limits on carbon emission and minimum fuel economy in most of the world's car markets mean that more plug-in electric cars must be sold. Green 48-Volt mild hybrid Future Cars diesel particulate filter (DPF) gasoline engines parts suppliers start-stop systemWith battery costs steadily falling and the pricetag rising for the new technologies that make cars more efficient, some now envision a world in which all new vehicles have dispensed with.

2016 63

Ford F-150 fuel economy improves with all-new EcoBoost engine and 10-speed transmission

Green Car Congress

Thanks to its all-new 3.5-liter EcoBoost engine paired exclusively with the first volume-production 10-speed automatic transmission available from any automaker, 2017 Ford F-150 sees improvement in all three EPA fuel economy label estimates—city, highway and combined ratings—by 1 mpg over 2016 F-150; the 4x4 model improves by 2 mpg combined. F-150 remains the only truck in its segment to offer a twin-turbocharged gasoline engine.

2016 68

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

Green Car Congress

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

EPA trends report sees record levels of average new vehicle fuel economy and CO2 emissions for MY 2012; role of new gasoline vehicle technologies

Green Car Congress

EPA projects advanced transmissions (6+ speeds and CVTs), gasoline direct injection (GDI) systems, and turbocharged engines will be installed on at least 15% of all MY 2013 vehicles. MY 2012 adjusted fuel economy is 23.6 Market share of gasoline turbo vehicles.

2013 107

Pinnacle Engines introduces new opposed-piston engine with a promise of 30-50% better fuel economy

Green Car Congress

Illustration of a three-cylinder configuration of the Pinnacle opposed-piston engine. Startup Pinnacle Engines unveiled plans to commercialize a new, more efficient combustion engine by 2013. a Pinnacle Engines development partner. Engines

2011 103

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

Green Car Congress

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

GM CEO outlines highlights of fuel economy plan through MY2016: lightweighting; more efficient gasoline and clean diesel engines, electrification

Green Car Congress

Within his talk about the need for a US energy policy at the IHS CERAWeek 2013 energy conference in Houston, GM Chairman and CEO Dan Akerson outlined some highlights of the company’s fuel economy plan through the 2016 model year. The near-term elements of GM’s fuel economy efforts he adduced are: Reduction in vehicle weight by up to 15%. A good rule of thumb is that a 10% reduction in curb weight will reduce fuel consumption by about 6.5%.

2013 74

BorgWarner launches new low-friction engine timing chain; 0.3-0.6% improvement in fuel economy

Green Car Congress

mm inverted tooth silent engine timing chains are launching on engines from Mitsubishi, Suzuki, Hyundai, General Motors Korea and one Chinese automaker. improvement in fuel economy based on customer testing. BorgWarner will produce the new low-friction engine timing chains for a variety of 0.66- to 2.0-liter gasoline engines for vehicles in Japan, China and Korea. BorgWarner’s next-generation 6.35

2014 83

Achates Power and Aramco Services Company partner on opposed-piston engine projects; Opposed-Piston Gasoline Compression Ignition (OPGCI)

Green Car Congress

The first result of this agreement is the demonstration vehicle that will be shown at the 2018 North American International Auto Show (NAIAS): a light-duty truck with an Opposed-Piston Gasoline Compression Ignition (OPGCI) Engine. OP engine. Emissions Engines Fuel Efficiency

2018 108

Toyota announces expected fuel economy and pricing for RAV4 Hybrid: 33 mpg combined, entry at $28,370

Green Car Congress

The RAV4 gasoline version comes in four grades: LE, XLE, Limited and the new SE. MSRP for the 2016 RAV4 gasoline models will range from $24,350 for the LE 2WD to $32,910 for the AWD Limited. seconds (nearly one second quicker than its gasoline counterparts).

2015 105

Infiniti Q80 Inspiration concept hybrid delivers 550 hp with 42.8 mpg fuel economy

Green Car Congress

The four-door fastback is powered by a hybrid electric powertrain that is expected to deliver 550 hp (410 kW) with fuel consumption of 5.5 Combined engine and motor system torque is 750 N·m (553 lb-ft). Driver Assistance Systems Engines Hybrids

2014 119

Mercedes-Benz introducing diesel E 300 BlueTEC HYBRID with fuel economy of 56 mpg US; gasoline-engined E 400 HYBRID model to follow

Green Car Congress

Mercedes-Benz is introducing the new E 300 BlueTEC HYBRID; the luxury-class diesel hybrid offers fuel consumption of 4.2 The E 300 BlueTEC HYBRID is based on the E 250 CDI, yet has a higher output and approximately 15% lower fuel consumption. Engine.

2012 134

EPA annual trends report finds new vehicle fuel economy at record 24.1 mpg; new powertrain technologies rapidly gaining share

Green Car Congress

EPA released the latest edition of its annual report on trends in CO 2 emissions, fuel economy and powertrain technology for new personal vehicles in the US. The report also noted that: Since alternative fuel vehicle production [CNG, PHEVs and EVs] has generally been less than 0.1%

2014 102

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

Green Car Congress

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

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

Green Car Congress

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 TSI in the Polo BlueGT is the top engine of the entirely new EA211 series of petrol engines. Engines Fuel Efficiency Vehicle SystemsPolo BlueGT.

2012 86

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

Green Car Congress

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. The 2.3L Source: Ford.

2014 107

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

Green Car Congress

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

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

Green Car Congress

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.

2013 90

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

Green Car Congress

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 93

Corning hits 1-million-unit milestone with gasoline particulate filter production

Green Car Congress

Corning Incorporated’s Environmental Technologies business reached a significant production milestone at its Kaiserslautern, Germany manufacturing facility with the production of its 1 millionth Corning DuraTrap GC gasoline particulate filter (GPF) for automotive emissions control.

2018 88

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

Green Car Congress

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.

2011 99

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

Green Car Congress

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

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

Green Car Congress

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

New VW Golf Sportwagen going on sale in 2015 in US with gasoline and diesel powertrains; improved power and fuel economy

Green Car Congress

The new SportWagen—a more fuel-efficient replacement for the Jetta Sportwagen—will continue the trend introduced by the seventh-generation Golf: lighter, bigger, roomier, more fuel efficient and more powerful than the outgoing model. Engines Fuel Efficiency

2014 94

2017 Chevrolet Cruze Diesel: fuel economy review for automatic, manual versions

Green Car Reports

Also, gasoline remains cheap. All of which may add up to tough times for the current Chevrolet Cruze Diesel, the compact sedan to be offered with a high-efficiency turbo diesel engine. Times are tough for sedans in general, as buyers swarm into crossover utility vehicles and ignore the passenger cars sitting next to them on the showroom floor.

2017 63