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.

Diesels Still Needed For Truck Fuel Economy Despite VW Scandal: Advocate

Green Car Reports

He's executive director of the Diesel Technology Forum, a non-profit organization dedicated to raising awareness about the importance of diesel engines, fuel, and technology. pickup VW CAFE Corporate Average Fuel Economy Truck Volkswagen diesel scandalAllen Schaeffer probably doesn't have the easiest job these days.

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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 44

2016 Ram 1500 HFE EcoDiesel fuel-economy review: 24-mpg full-size pickup truck

Green Car Reports

You might view it as this decade's version of the Camaros, Mustangs, and Mopars that emerged in earlier days from back-corner "skunkworks" engineering groups at each Detroit automaker. Fuel Economy EcoDiesel Ram 1500 EcoDieselIt may not look like it, but the Ram full-size pickup you see here may be one of the more interesting new trucks on the road today.

2016 33

AAM develops new axle technology; lighter, more efficient for up to 1.5% better fuel economy

Green Car Congress

QUANTUM driveline technology is scalable across a wide range of vehicle segments and provides substantial advantages regardless of vehicle size: reduced mass, increased power density, improved noise vibration and harshness (NVH) and fuel efficiency gains in a more compact system package.

2017 38

2016 Land Rover Range Rover Sport HSE Td6: fuel economy review of luxury diesel SUV

Green Car Reports

Buyer expectations of a silent, refined driving experience traditionally kept diesel engines out of the upper echelons of the automotive market, but times have definitely changed. Fuel EconomyWitness the major expansion by Jaguar Land Rover to offer American buyers a 3.0-liter turbo diesel V-6 in a large number of car and SUV models. A decade ago, the diesels.

2016 21

2017 Audi A3 replaces 1.8L with Millerized 2.0L TFSI; better fuel economy, power and torque

Green Car Congress

The 2017 Audi A3 Sedan and Cabriolet models in the US are now available with Audi’s more efficient Millerized 2.0-liter TFSI engine ( earlier post ) and seven-speed S tronic dual-clutch transmission. l/100 km) from the 2016 A3 with the 1.8-liter engine (a 7.4% Engines Fuel Efficiency

2016 23

Select truck fleets boosted fuel economy 3% in 2015 compared to national Class 8 average

Green Car Congress

Seventeen trucking fleets operating more than 62,000 tractors and 217,000 trailers recorded a 3% increase in fuel economy in 2015, saving an accumulative $501 million on fuel when compared to the 2015 national average fuel spend of 1.7 They achieved these gains by purchasing a variety of fuel efficiency technologies, according to the Annual Fleet Fuel Study released by the North American Council for Freight Efficiency (NACFE).

2016 29

Porsche diesel achieves remarkable fuel economy

Green Cars News

Think Porsche and you probably don’t think fuel economy – however, while few buyers will reach for the new Porsche Panamera Gran Turismo because of its green credentials, there is no denying its achievements. The vehicle, which includes a 3.0litre diesel engine, consumes 37.3mpg and produces 167g/km of CO2 with optional low friction tyres. Green cars Latest news Porsche Porsche fuel economy Porsche Panamera Porsche Panamera Gran Turismo

Infiniti plans VC-T engine with variable compression ratio

Green Car Reports

While significant attention is being paid to battery-electric and hydrogen fuel-cell powertrains, carmakers are still trying to wring more efficiency out of internal-combustion engines. Engines Fuel EconomyNow, Infiniti is poised to introduce a technology into production cars that was previously sidelined by somewhat easier fixes. The Nissan luxury brand is set to.

ICCT update finds real-world vehicle fuel economy gap continues to widen in Europe to 40%

Green Car Congress

The gap between official fuel-economy figures and the real world for new cars in the EU has reached 40 per cent, according to the latest update by the International Council on Clean Transportation (ICCT) to its on-going research into in-use vehicle fuel efficiency and CO 2 emissions.

2015 34

Ford reveals new Explorer fuel economy figures

Green Cars News

Ford has revealed the fuel economy figures for the new Ford Explorer – and it will be the most fuel efficient seven-passenger SUV on the market. The vehicle will deliver an EPA-certified 28mpg on the highway with an all-new 2.0litre EcoBoost engine. The engine combines petrol direct injection and turbocharging with smaller overall displacement, and [.]. Ford Green cars Latest news Ford Explorer Ford Explorer fuel economy Ford Explorer SUV new Ford Explorer SUV

Mazda to launch homogeneous-charge compression engine next year

Green Car Reports

The differences between gasoline and diesel engines lie not only in their fuels, but in how those fuels are ignited. Gasoline engines use spark plugs, while diesels simply use compression. But it is possible to ignite gasoline in an internal-combustion engine with compression, as in a diesel. HCCI Fuel EconomyDON'T MISS: Mazda diesel to arrive fall 2017 in new.

2019 Mazda 3 to feature world-first HCCI engine for efficiency: report

Green Car Reports

Now Mazda, one of the smallest global automakers, plans to introduce it in a radical new engine to be used in a future Mazda vehicle in 2019. It's called homogeneous charge compression ignition, or HCCI: in essence it lets a gasoline engine. HCCI Engines Fuel Economy SKYACTIVIt's a technology that's been a sort of Holy Grail in the auto industry for at least a couple of decades.

Honda boosts motorcycle fuel economy

Green Cars News

Honda’s efforts to reduce emissions and improve fuel economy go beyond its motor vehicles – they also stretch to its motorcycles, with the company developing new 700cc and 125cc engines with an accompanying second-generation Dual Clutch Transmission. The 700cc engine is a liquid cooled, four-stroke, in-line two-cylinder engine that is part of the mid-class range. [.].

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 23

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 32

DLR working with Yamaha on thermoelectric generators for vehicles; seeking 3-5% gain in fuel economy

Green Car Congress

Internal combustion engines in vehicles use only about one-third of the potential energy in the fuel for propulsion; the remaining two-thirds are lost as waste heat. The goal of the DLR scientists is to reduce fuel consumption by 3-5% percent using thermoelectric generators.

2017 20

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

Green Car Congress

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 23

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

Green Car Congress

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.

Fuel economy tips from an unlikely source

Green Cars News

Here, for the record, are its tips: - Pack light: Remove unnecessary baggage from a vehicle as for every 100lbs that a car carries, its fuel economy is cut by one-two per cent. A loaded roof rack should also be avoided, as this can decrease fuel economy by five per cent. Avoid idling: Idling along will give you a fuel economy rating of 0mpg so try and avoid congested roads and map out a back-up route beforehand.

Green 19

Ford’s math on hybrid fuel economy; standing by the C-MAX EPA ratings, acknowledging large real-world variance

Green Car Congress

Raj Nair outlining factors affecting real-world fuel economy in hybrids. Combining a “lead foot” with environmental factors can lead to the wide swings in fuel economy results, he said. Quite a few factors can affect hybrid fuel economy, more so than regular gas engines.

Audi reveals fuel economy of new diesel line-up

Green Cars News

It was at last year''s Los Angeles Motor Show that Audi announced a new diesel model line-up that would mark the introduction of diesel engines into the Audi A6, Audi A7, Audi A8 and the Audi Q5 TDI models. Now the company has offered details of the fuel economy of each model.

Next Audi Q7 To Launch Electric Turbocharger For Better Fuel Economy

Green Car Reports

Electric motors can improve the fuel efficiency of a car--even if they''re not driving the wheels. Using electric power to run accessories like power steering lets engineers remove power-sapping accessory drives from engines--and soon, it will even help those engines produce more power from combustion as well.

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

2019 45

Fiat Chrysler to offer 4-cylinder turbo four to boost fuel economy

Green Car Reports

You'd expect an engine named Hurricane to be fairly powerful. And Fiat Chrysler Automobiles (FCA) has dropped hints that it would launch a new 2.0-liter 4-cylinder engine since as far back as 2013. Now it appears that engine is getting closer to production—and could boast nearly 300 horsepower. turbocharged Fuel Economy Fiat Chrysler Automobiles (FCA

Jeep 11

New Mercedes engines get more complicated to meet emission rules

Green Car Reports

While it plans to launch 10 new electric cars by 2025, Mercedes-Benz is far from done trying to improve the efficiency of internal-combustion engines. The German luxury automaker is giving its lineup of engines a major overhaul, in fact. It plans to introduce a new family of 4-, 6-, and 8-cylinder engines, with the new engines starting to arrive. emissions Daimler Fuel Economy

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

2014 Ram 1500 EcoDiesel Pickup Fuel Economy: 23 MPG Combined

Green Car Reports

How do you make a full-size pickup truck more fuel-efficient? Fitting in a smaller diesel engine seems to be working for Ram. The 2014 Ram 1500 EcoDiesel achieved an EPA fuel-economy rating of 23 mpg combined for rear-wheel drive models. MORE: 2014 Pickup Truck Gas Mileage: Ford Vs Chevy Vs Ram, Who''s Best? That represents a city rating of 20 mpg

2014 22

2014 Jeep Grand Cherokee EcoDiesel: Diesel SUV Fuel Economy Tested

Green Car Reports

Diesel engines are now offered in a growing number of passenger vehicles on sale this year and next, especially crossovers and sport utilities. The 2014 Jeep Grand Cherokee EcoDiesel is one of two popular models this year that offer a good test of how attractive buyers find today''s modern diesels. The other is the 2014 Chevy Cruze Diesel compact

2014 28

New Chrysler transmission to boost fuel economy

Green Cars News

Chrysler is to introduce an eight-speed automatic transmission that will help boost fuel economy for both the Chrysler 300 and the Dodge Charger in 2012. Licensed through ZF, the transmission will be mated to the 3.6litre V6 Pentastar engine and offers a four-mile-per-gallon increase in fuel economy that takes the fuel economy of the two [.].

2016 Mazda MX-5 Miata fuel economy improves 25% versus outgoing model

Green Car Congress

This performance represents a 25% increase in fuel economy versus the 2015 MX-5's EPA-estimated fuel economy when paired with the outgoing model’s available six-speed manual transmission, highlighting the benefits of Mazda’s SKYACTIV Technology. At the same time, the 2016 MX-5 has gained Mazda’s torquey SKYACTIV-G 2.0-liter engine. The 2016 Mazda MX-5 achieves an EPA-estimated 27 mpg city/34 mpg highway/30 mpg combined (8.7/6.9/7.8

MPG 18

Smaller car worst for true fuel economy performance

Green Cars News

The idea that downsizing will save you money in fuel costs, has been thrown into doubt as new research reveals that small engines often fail to meet their official MPG figures by the largest margin.

CMU study shows autonomous vehicle algorithms can have considerable effect on fuel economy; need for new approaches in testing

Green Car Congress

Autonomous vehicle driving behavior can have a considerable effect on fuel economy. Researchers in the College of Engineering at Carnegie Mellon University have determined that fuel efficiency for self-driving cars—within the bounds of current fuel economy testing—could improve by up to 10% under efficiency-focused control strategies when following another vehicle. Autonomous driving Fuel Efficiency Regulations

EPA 18

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

Green Car Congress

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

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 20

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

Green Car Reports

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. Also, gasoline remains cheap.

Cheap 16

Start-stop systems to be standard on all GM vehicles by 2020

Green Car Reports

General Motors is about to commit to engine start-stop systems in a big way. Start-stop systems—which shut off the engine while a car is stationary to save fuel—are already available on numerous models from multiple manufacturers. General Motors stop/start CAFE Fuel Economy start-stop system Corporate Average Fuel Economy

Fuel 29

Cummins/Peterbilt SuperTruck shows 54% improvement in fuel economy, 61% improvement in freight efficiency

Green Car Congress

The new SuperTruck achieved a 54% increase in fuel economy. and Peterbilt Motors Company, a division of PACCAR, released test results showing their demonstration SuperTruck tractor-trailer achieved a 54% increase in fuel economy, averaging nearly 10 mpg US (23.5

Chevrolet to offer small number of 2016 Silverados pickups with e-Assist mild-hybrid technology; 13% better city cycle fuel economy

Green Car Congress

As a result, Chevrolet can deliver a low-volume, affordably priced hybrid pickup that delivers uncompromised capability and up to 13% better fuel economy in city driving. Silverado already leads the full-size truck segment in V8 fuel economy. For customers and small-business owners who use their trucks for more urban driving, the addition of eAssist can further reduce their fuel costs without sacrificing the utility they expect in a full-size truck.

2016 24