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

Green Car Congress

Cummins reports that it, along with partners Johnson Matthey and Nissan, is on plan in a 4-year, $30-million ($15 million from the US Department of Energy) research project to deliver a light-duty diesel engine with fuel economy 40% improved over that of baseline gasoline V8 engine for a half-ton pickup truck while also meeting the requirements of US Tier2 Bin2 tailpipe emissions. Fuels Lubr. Diesel Emissions Engines Fuel Efficiency

2014 288

VW suggests engine downsizing is done; emissions rules are the reason

Green Car Reports

When it comes to improving fuel efficiency, simply making an engine smaller is a fairly direct way to get results. They have downsized engines across model lines, usually adding turbochargers at the same time to match the power output of the larger-displacement engines that they. emissions VW downsizing Fuel Economy TurbochargingIt's the approach that many automakers have taken in recent years.

Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Trending Sources

Volvo introducing new downsized 4-cylinder engine range, with fuel economy improvements up to 35%; hybrid and flywheel drive systems

Green Car Congress

The Volvo Car Corporation is introducing a new, downsized engine range consisting solely of four-cylinder gasoline and diesel engines. It covers the range from high-power and -torque variants to fuel-efficient derivatives. The new powertrains are also up to 90 kg lighter than the present ones and fuel economy is improved by up to 35%. It proves that downsized engines can go hand in hand with our customers’ expectations on luxury and driving pleasure.

2011 228

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

Green Car Congress

BorgWarner says that its Valve-Event Modulated Boost (VEMB) system can offer a total possible fuel economy improvement of 6% at low speeds to 17% at high speeds over already downsized and turbocharged engines by separating the exhaust event into an early blow-down phase directed toward the turbo and a late scavenge phase directed toward the EGR system. to 2 ratio points and maintain the same knock limit for an additional 3-4% improvement in fuel economy.

2012 195

Land Rover plug-in hybrid lineup expands with downsized engine, bigger battery

Green Car Reports

Land Rover is launching a new plug-in hybrid powertrain, based around a downsized 3-cylinder engine, that promises greater fuel economy and more electric range than the British automaker's current models.

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

Green Car Congress

improvement in fuel economy based on customer testing. As automakers began downsizing engines to improve fuel economy, BorgWarner recognized opportunities to help further improve engine efficiency by reducing power-wasting friction in the engine timing system. BorgWarner’s next-generation 6.35 mm inverted tooth silent engine timing chains are launching on engines from Mitsubishi, Suzuki, Hyundai, General Motors Korea and one Chinese automaker.

2014 214

Hyundai introduces hybrid version of new Sonata; 10% improvement in fuel economy over predecessor

Green Car Congress

Hyundai expects the 2016 Sonata Hybrid to improve fuel economy more than 10%. The 2016 Sonata Hybrid features a downsized 2.0-liter Nu GDI four-cylinder engine paired with a six-speed automatic transmission that houses a more powerful 38 kW electric motor and clutch where the torque converter would normally be found. Hyundai introduced the Hybrid version of the seventh-generation Sonata at the North American International Auto Show in Detroit.

2015 207

JAC and Ricardo develop production version of HyBoost concept; seeking 30% boost in fuel economy with same performance

Green Car Congress

Anhui Jianghuai Automobile Group Co Ltd (JAC) and Ricardo are collaborating on a project to develop the Ricardo HyBoost concept ( earlier post )—a combination of low-cost technologies to deliver improved performance and fuel economy which featured recently in the Ricardo Centenary celebrations —into volume production on a JAC vehicle. The BSG also provides torque assistance to the engine to improve overall fuel economy. 48V Fuel Efficiency Hybrids

2015 197

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 The powertrain incorporates a new aluminum-based downsized twin-turbocharged 3.0-liter V6 that is part of a new engine family which will be introduced within the next two years.

2014 237

Split injection Miller cycle with boost decreases knock tendency and increases torque in downsized engine

Green Car Congress

Researchers at Tianjin University in China report that combing split injection to the Miller cycle with boost pressure can effectively decrease the knock tendency and increase the engine torque in a downsized spark-ignition engine. Their paper is published in the journal Fuel. The Miller cycle also has been shown to improve fuel economy at partial loads, owing to a more widely open throttle (WOT) and lower pumping loss. Engines Fuel Efficiency

2018 174

Study Assesses Product Attribute Trade-offs and Technological Progress; Meeting Proposed Obama Fuel Economy Standards Will Require Downsizing and Change in Fleet Mix

Green Car Congress

Changes in the attributes (clockwise from upper left, weight, power, fuel economy and torque) of the Honda Accord over time as an example of fleet trends in the US. Based on detailed model-level data for US light-duty vehicles from 1980 to 2006, a recent analysis by a UC Davis researcher found that if weight, horsepower and torque had been held at their 1980 levels, fuel economy for both passenger cars and light trucks could have increased by nearly 50% from 1980 to 2006.

2009 190

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. naturally aspirated, port fuel injected V6.

2013 235

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

Green Car Congress

A paper on their work is published in the ACS journal Energy & Fuels. Blending 25-50% of this low-temperature ethanol reformate with ethanol or E85 fuels enables dilute engine operation, resulting in substantial improvements in fuel economy and emissions. Further work revealed that, because of the enhanced flammability range of hydrogen, only 25-50% of the fuel needed to be reformed to obtain the efficiency benefits of highly dilute engine operation.

2013 203

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% FEV conducted three programs to assess fuel economy potential; technical and manufacturing feasibility; and cost. Fuel economy. To predict fuel economy for the baseline 1.5L

2013 203

FEV’s two-stage VCR system; 5-7% increase in fuel economy using variable length conrods

Green Car Congress

Use of a variable compression ratio (VCR) could be one technology approach to reducing fuel consumption in highly boosted (e.g., downsized, turbocharged) gasoline engine, as operating an engine with higher compression ratios at low load can increase fuel economy compared to operating an engine with fixed compression ratio. At a given boost level and fuel quality this can only be compensated for by either spark retardation or adjustment of the compression ratio.

2013 195

EIA: trends in downsized engine design leading to increased demand for higher-octane gasoline

Green Car Congress

This trend of increasing demand for higher octane gasoline is likely driven by changes in fuel requirements for light-duty vehicles (LDV) in response to increasing fuel economy standards, which will have widespread implications for future gasoline markets, according to EIA analysts. One significant trend is engine downsizing coupled with turbocharging. of new gasoline-fueled LDV sales. By MY 2013, higher-octane gasoline-fueled LDVs accounted for 14.2%

2016 163

Small Cars Now Deliver Fuel Efficiency of Big Motorcycles: How'd That Happen?

Green Car Reports

How are fuel-efficient are some of today's smaller cars? It turns out that they now actually equal the fuel economy of larger motorcycles--which is pretty amazing for a four-seat vehicle weighing more than a ton. Green EPA Ratings EcoBoost Fuel Economy downsizing motorcyclesEspecially since the motorcycles returning comparable gas-mileage figures weigh about one-fifth as much. DON'T MISS: Auto Industry Doing.

2015 112

Downspeeding and supercharging with transmission optimization can deliver fuel economy improvement over downspeeding and turbocharging

Green Car Congress

Researchers from Southwest Research Institute (SwRI) and Eaton have demonstrated the application of downspeeding and supercharging a diesel vehicle, in conjunction with optimizing transmission gear ratios and the shift schedule, to deliver a greater improvement in fuel economy than a downsped and turbocharged configuration. The shift schedule optimization technique resulted in fuel economy gains of up to 12.2% Diesel Engines Fuel Efficiency

2012 183

Volvo to concentrate on hybrids and downsized engines for US

Green Car Congress

Volvo Car Corporation will rely on a powertrain strategy based on its new downsized 4-cylinder VEA (Volvo Environmental Architecture) engine platform ( earlier post ) and hybrids for the US market, said John Maloney, recently appointed President of Volvo Cars, US, in an interview at the Detroit Auto Show. The 2012 XC60 carries an EPA fuel economy rating of 20 mpg US (11.8 The XC60 Plug-in Hybrid Concept was introduced at the Detroit Auto Show. Click to enlarge.

Ford Marks 5-Millionth EcoBoost Engine Since 2009

Green Car Reports

Back in 2009, Ford introduced what would become the backbone of its fuel-efficiency strategy: the EcoBoost line of efficiency-focused engines. Ford has used the smaller turbocharged, direct-injected engines in most of its models to improve its EPA fuel-economy ratings--even if high gas-mileage numbers aren''t always reflected in all buyers''. EcoBoost Turbochargers direct injection downsizing Fuel Economy EPA Ratings

2009 109

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

Green Car Congress

The project aims to deliver full hybrid equivalent fuel economy and performance with less than 70 g/km CO 2 emissions as measured over the European Drive Cycle, but at a significantly lower cost. This combined combined aggressive 50% downsizing of the engine with an electric supercharger for transient low-speed performance and a 12+X volt micro-hybrid stop-start and energy recuperation systems. Diesel Fuel Efficiency Hybrids Vehicle Systems

2013 209

Magnetic eCVT could replace conventional hybrid mechanical eCVT with likely 1-2% fuel economy improvement and other benefits

Green Car Congress

Preliminary testing results of a prototype of the magnetic eCVT presented at the conference suggest a likely 1-2% improvement in fuel consumption compared to a conventional hybrid system, along with the benefits of reduced system complexity, no lubrication, low battery charge swing (allowing either downsizing the battery or extending the life of the original size) and compact packaging. MAGSPLIT is intended to replace mechanical eCVTs with a combination motor/magnetic gear.

2014 230

Optimized direct-injection hydrogen engine estimated to exceed 2016 CAFE fuel economy targets at Tier 2 Bin 2 emission levels

Green Car Congress

The team sees further potential for fuel economy improvement with engine downsizing. Estimated drive-cycle fuel economy and emissions—based on the single-cylinder 0.66L research engine efficiency and emissions maps—was 32.4 At that level of performance, the H2-DI engine would exceed 2016 CAFE fuel economy targets, along with delivering Tier 2 Bin 2 (SULEV) emissions levels without aftertreatment.

2011 224

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

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. 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. Emissions Engines Fuel Efficiency The 2.3L MiGTDI engine.

2014 214

ICCT-led analysis of turbocharged, downsized engine tech finds lower costs and greater benefits than 2012 EPA/NHTSA analysis; 48V, e-boost, Miller

Green Car Congress

A new white paper published by the International Council on Clean Transportation (ICCT), in collaboration with Eaton, Ricardo, JCI, BorgWarner, Honeywell, and the ITB Group, analyzes current turbocharged, downsized gasoline engine technology developments and trends. Comparison of ICCT/supplier and EPA/NHTSA costs and benefits of turbocharging and downsizing technologies. 48V Emissions Engines Fuel Efficiency Vehicle Systems

2016 209

Next Mercedes-Benz small cars to get even tinier engines

Green Car Reports

emissions Future Cars downsizing Engines Fuel EconomyNot so many years ago, a 1.2-liter engine would only have been found in the U.S. in the smallest and least impressive of subcompact cars. It might have been a 3-cylinder, and certainly wouldn't have had even 100 horsepower. But times change, and engines of that size will soon be found even in the smallest of Mercedes-Benz luxury cars. DON'T MISS.

2017 80

Volkswagen of America bringing in downsized 1.8L EA888 engine to displace 2.5L; all vehicles E15 capable

Green Car Congress

Volkswagen expects the new engine to offer significant highway fuel mileage gains over the 2.5-liter unit. Volkswagen predicts fuel highway fuel economy will improve by up to 17% with the downsized engine. Engines Fuel Efficiency Technologies in the EA888 engine line. Click to enlarge.

2013 247

Tesla 500k goal, new-car fuel economy, FCA turbo 4-cylinder: Today's Car News

Green Car Reports

Also, new-car average fuel economy fell in April, and Fiat Chrysler Automobiles is reportedly working on a downsized turbocharged 4-cylinder engine for fuel efficiency. Today, Tesla aims to produce 500,000 cars per year by 2018, rather than 2020 was originally stated. All this and more on Green Car Reports. A consortium plans to test a 48-volt. Today in Car News

2016 69

Tougher testing for emissions may mean bigger engines, but why?

Green Car Reports

Stricter global emissions standards have led many automakers to downsize engines, but that trend may be about to reverse itself. Cutting displacement is a relatively straightforward way to improve fuel economy. emissions CAFE Fuel Economy Turbocharging Corporate Average Fuel EconomyBut as regulators move toward adoption of more realistic testing procedures in the wake of the Volkswagen diesel scandal, automakers may.

2016 101

DOT, EPA unveil joint proposal for fuel economy and greenhouse gas emission standards: 49.6 mpg CAFE, 163 g/mile GHG in 2025; flexibilities and incentives

Green Car Congress

The US Environmental Protection Agency (EPA) and the US Department of Transportation (DOT) formally unveiled their joint proposal to set stronger fuel economy and greenhouse gas pollution standards for Model Year 2017-2025 passenger cars and light trucks. L/100km), if the vehicles were to meet this CO 2 level all through fuel economy. reductions in air conditioning leakage, which would not contribute to fuel economy. dual fuel vehicles (e.g,

2011 275

Achates OPGCI project targeting 50% fuel efficiency gains over downsized GDI engine at reduced cost

Green Car Congress

The engine should yield fuel efficiency gains of more than 50% compared to a downsized, turbo-charged gasoline direct injection engine, while reducing the overall cost of the powertrain system, said Fabien Redon, Vice President, Technology Development at Achates Power. Gasoline compression ignition uses high cylinder temperatures and pressures to spontaneously combust gasoline fuel without requiring spark plugs. ARPA-E Engines Fuel Efficiency

2015 163

Ricardo to assist Lifan in development of 1.2L turbocharged DI gasoline engines for downsizing applications

Green Car Congress

Ricardo will assist Lifan Automobile Group based in Chongqing, China, with the development of a family of highly downsized gasoline engines capable of meeting future Chinese and international fuel economy and emissions regulations. capacity platform offering a competitive balance of performance, fuel economy, manufacturing cost and weight.

2011 183

Ford to bring 20 new engines and transmissions to China and improve fleet fuel economy by more than 20% by 2015; producing the new 1.0L EcoBoost in China

Green Car Congress

Utilizing technologies such as turbocharging, direct injection, twin independent variable camshaft timing (Ti-VCT) and six-speed transmissions, the upgraded powertrain portfolio will deliver more than 20% in fuel economy improvement to Ford’s passenger vehicle fleet in China by 2015 while reducing tailpipe carbon dioxide emissions by 20%. Ford is committed to be a fuel economy leader in every segment that we compete by utilizing advanced powertrain technologies.

2011 207

Hyundai showcasing new downsized turbo engines and 7-speed dual-clutch transmission; i40 48V Hybrid, i30 CNG

Green Car Congress

Both engines—1.0-liter and 1.4-liter units which are part of a new generation of engines from the Kappa family—meet growing demand for small capacity, turbocharged engines to reduce fuel consumption and CO 2 emission without compromising performance. In addition, Hyundai is premiering at the Paris show its first 7-speed dual-clutch transmission, fitted into the i30 CNG natural gas concept car, which contributes to improved fuel efficiency. New engines and transmission.

2014 209

New lightweight aluminum piston from Federal-Mogul enables further downsizing of gasoline engines

Green Car Congress

The Advanced Elastoval II piston enters series production later this year in a new European passenger car, where it contributes to gains in fuel economy and reductions in CO 2. Peak combustion pressures will rise from 110 bar to 130 bar and even 160 bar in engines using alternative fuels such as E100, compressed natural gas (CNG) or others, Federal-Mogul notes. Engines Fuel Efficiency ManufacturingThe new Advanced Elastoval II piston. Click to enlarge.

2012 210

HyBoost concept achieving close to Prius-level CO2 emissions; aggressive downsizing with advanced boosting and micro-hybrid system

Green Car Congress

variant but with fuel economy of a strong hybrid. version of its vehicle (a 2009 Ford Focus) but with fuel economy and CO 2 emissions approaching those of a Prius, according to David Boggs, Ricardo Technical Specialist, Engines, in a presentation at the recent 2011 Directions in Engine-Efficiency and Emissions Research Conference (DEER) hosted by the Department of Energy in Detroit. Fuel Efficiency Hybrids Vehicle Systems

2011 203

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 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.

2012 221

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

Green Car Congress

At a “Go Further with Ford” event in Amsterdam, Ford Motor Company detailed plans for an aggressive product acceleration in Europe, targeting opportunities for growth in the large car, SUV and commercial vehicle segments while emphasizing fuel economy and enabling technologies such as the EcoBoost engines. 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.

2012 224

HyBoost demonstrator debuts at LCV2011; 50% by swept volume downsizing with low-cost electrification

Green Car Congress

The HyBoost project vehicle was revealed for the first time today at the Cenex Low Carbon Vehicle 2011 event hosted at Rockingham, UK, demonstrating a combination of high-impact, low-cost electrical systems which offer the prospect of radical engine downsizing using electric supercharger and energy capture and storage technologies within an otherwise conventional gasoline powertrain architecture. Engines Fuel Efficiency HybridsHyBoost demonstrator. Click to enlarge.

2011 190

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

Green Car Congress

MAHLE Powertrain’s Turbulent Jet Ignition (TJI) spark-initiated pre-chamber combustion system ( earlier post ) can achieve HCCI-like fuel economy across a drive cycle using a conventional PFI (port fuel injected) engine with much less complicated hardware and a much simpler control system than HCCI, according to a detailed analysis presented by MAHLE at SAE 2011 World Congress. Engines Fuel Efficiency

2011 190

New Generation of VW Passat Improves Fuel Economy by Up to 18%

Green Car Congress

The ten engines (77 kW / 105 PS through 220 kW / 300 PS) of the new lineup are up to 18% more fuel efficient than their predecessors. Downsizing and technologies such as the Stop/Start system contribute to improved fuel efficiency in the gasoline-powered versions. Volkswagen has introduced the seventh generation of the Passat, which will be available in initial European markets starting as soon as mid-November.

2010 163

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

Green Car Congress

Pinnacle Engines, the developer of a high compression ratio, four-stroke, spark-ignited (SI), opposed-piston, sleeve-valve architecture engine ( earlier post ) reports that the most basic configuration of its engine has shown improvements in indicated specific fuel consumption (ISFC) of between 30-60% at light load and 12-30% at medium-load compared to a comparably sized conventional poppet-valve technology engine. Comparison of ISFC (@42.9

2012 253

Toyotas Yaris hybrid concept anticipates B-segment hybrid strategy with first downsizing of HSD; Prius +

Green Car Congress

This marks Toyota’s first downsizing of its HSD technology. This engineering solution targets the independent powering of the air-conditioning unit for improved full hybrid powertrain fuel economy. As in the standard Prius, the Prius+ features three on-demand drive modes to increase the capabilities of the full hybrid powertrain, including the EV mode for zero emissions, zero fuel consumption, all-electric driving. Yaris HSD concept. Click to enlarge.

2011 204