Achates Power building 2.7L opposed-piston light-duty engine; exceeding CAFE 2025, Tier 3 targets at lower cost

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six-piston) light-duty version of its opposed piston engine (OPE) in both diesel- and gasoline-fueled versions. Achates will demonstrate the engine in 2018 in a driveable light-duty truck. The light-duty engine is a “basic” Achates opposed piston 2-stroke engine, said Redon—i.e.,

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Ricardo demonstrates processes for evaluating light-duty diesel emissions under coming Real Driving Emissions (RDE) regs

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Despite the continuing and significant reductions in the legislated limits of light-duty diesel vehicle NO x emissions under the European Euro 1 through 5 regulations of recent years, many studies have demonstrated that real-world NO x emissions appear not to have been reduced as significantly. May, John; Bosteels, Dirk; Favre, Cécile (2014) “ A Comparison Of Light-Duty Vehicle Emissions Over Different Test Cycles And In Real Driving Conditions ” FISITA 2014 F2014-CET-058.

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Ricardo: achieving light-duty diesel RDE NOx compliance in urban driving is possible, at a price

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Future RDE emissions legislation and fleet average CO 2 targets represent a challenge for automakers wishing to provide cost-effective light duty diesel vehicles. The cost comparison is with respect to a Euro 5 baseline.

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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Comparison of ISFC (@42.9 The results represent a light-load indicated efficiency improvement of 15-30% (up to 40.9%). For a comparison engine, Pinnacle used a 200 cc, conventional two-valve, air-cooled, carbureted model.

ICCT working paper highlights benefits of current and emerging light-duty diesel technology; “promising pathway for compliance”

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Diesel vehicles have had a rough time penetrating the US light-duty vehicle market, reflecting outdated negative perceptions, higher fuel prices for diesel than for gasoline, the cost of complying with stringent US emission standards, and rapidly improving gasoline engines.

Fuel Economy Keeps Rising: 24.6 MPG In March

Green Car Reports

will sound a little poor in comparison. But that''s the average economy of all cars, light trucks, minivans and SUVs purchased in the U.S. If you''re used to driving around in a Prius then average miles per gallon of 24.6 in March--and it''s an all-time high. mpg is 0.2 mpg higher than January and February''s revised figures, both the previous

Study suggests high-mileage light-duty fleets contribute higher emissions and emissions share than expected

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A study by researchers from the University of Denver and the University of Puget Sound indicates that high-mileage light-duty fleets contribute higher emissions and emissions share than expected based on their actual numbers in the fleet.

Japan Ministries propose light commercial vehicle fuel economy standards for 2022

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The new standards will require that the fuel economy of model year 2022 light and medium commercial vehicles sold in Japan average 17.9 Global comparison of light truck/light commercial vehicle fuel economy standards (in mpg or km/L under CAFE test cycle).

EU-funded project develops diesel engine for light helicopters

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EU-funded scientists developed a novel 320 kW (429 hp) diesel engine for light helicopters as an alternative to conventional turboshaft engines. The EU-funded project “Diesel engine matching the ideal light platform of the helicopter” ( DELILAH ) developed a lightweight, high-power diesel engine that can also operate on biofuel. The technology demonstrated substantial reductions in fuel consumption and emissions.

Ford researchers: global light-duty CO2 regulatory targets broadly consistent with 450 ppm stabilization

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Broadly, the Ford team found that new light-duty vehicle fuel economy and CO 2 regulations in the US through 2025 and in the EU through 2020 are consistent with the CO 2 glide paths. 15 years and to facilitate comparison with regulations.…

Emissions testing shows Lighting Hybrids hydraulic hybrid drive delivers significant reduction in NOx, up to 18% improved fuel consumption

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Previous testing at SGS provided two sets of baseline results which LH uses for comparison to allow the improvements provided by the hybrid system to be quantified. The LH gasoline hydraulic hybrid shows an extreme reduction in NO x compared to a diesel baseline. Source: Lightning Hybrids.

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Progress on ATLAS: Cummins’ Tier 2 Bin 2 light duty diesel project

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The baseline vehicle for comparison is a 2010 Nissan Titan, outfitted with a 5.6L Light Truck Diesel Engine (Ruth, DEER 2011). The ATLAS project is targeting 210 hp and 500 N·m in its fuel-efficient package. Click to enlarge.

UMTRI study finds total cost of ownership of diesels in US often much less than gasoline counterparts

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Sales of light-duty vehicles with alternative powertrains in 2014 was a mix of increases and decreases over 2013 sales. The report— Total Cost of Ownership: A Diesel Versus Gasoline Comparison (2012-2013) —was underwritten by Robert Bosch LLC.

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Light duty RCCI can deliver engine-out Tier 2 Bin 5 NOx; potential for 52% gross indicated efficiency

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Rolf Reitz of the University of Wisconsin found that reactivity controlled compression ignition (RCCI) ( earlier post ) in a light-duty engine can meet Tier 2 Bin 5 NO x levels without aftertreatment, while offering a 4% improvement in fuel consumption and 7.3% The modeling shows that over 52% gross indicated efficiency can be achieved in the light-duty engine while meeting NO x targets in-cylinder. A study by Sage Kokjohn, Senior Engineer in Combustion Research at Cummins Inc.,

IHS: average age of light vehicles in US rises slightly in 2015 to 11.5 years; length of new vehicle ownership hits record high

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The combined average age of all light vehicles on the road in the US has climbed slightly to 11.5 Registrations for light VIO in the US also reached a record level of 257,900,000—an increase of more than 5.3 Average age for both passenger cars and light trucks increased just slightly in 2015, and both now stand at 11.5 In comparison, a record high of more than 14 million vehicles were scrapped in 2012.

Study finds ethanol blending appears to reduce significantly genotoxic emissions from gasoline direct injection vehicles

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These vehicles have been introduced promising enhanced engine power and fuel efficiency and hence lower CO 2 emissions in comparison with PFI vehicles. They used the worldwide harmonized light-duty vehicle test cycle (WLTC), which includes urban, extra-urban, highway, and motorway driving.

ICCT: 2025 target average of 70 g/km CO2 for new cars in EU feasible and economical; more so with electric drive

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A new vehicle type-approval test procedure for the EU, the Worldwide Harmonized Light Vehicles Test Procedure (WLTP), will likely reduce that gap beginning in 2017.

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Opel to begin publishing WLTP fuel consumption numbers in Q2 2016; improving SCR for NOx reductions

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According to EU plans, the “New European Driving Cycle” (NEDC) will be replaced starting in 2017 with the more modern standard “Worldwide Harmonized Light Duty Vehicles Test Procedure” (WLTP). A partial comparison of WLTP to NEDC.

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DOE to Fund Up to $240M for Class 8 Supertruck and Advanced Technology Light-Duty Powertrains

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Area 2: Advanced Technology Powertrains for Light-Duty Vehicles. The improvement is based on comparison to a baseline state-of-the-art port fuel-injected gasoline vehicle maintaining comparable vehicle performance. Demonstration requirements for light-duty vehicles.

GS Yuasa develops 12V Li-ion battery for start/stop applications

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The new lithium-ion battery uses a Lithium Iron Phosphate / Graphite combination and offers advantages in comparison with the traditional lead-acid battery in terms of light weight, high power and long life.

BNL, VT team creates Ru,Rh supramolecular photocatalysts for enhanced hydrogen production via artificial photosynthesis

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Artificial photosynthesis requires a molecular system that can absorb light; transport and separate electrical charge; and catalyze fuel-producing reactions.

CALSTART survey of major auto suppliers finds 70% don’t want US to change CAFE targets; split on amount of electrification needed

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Deployment of electric vehicles is required under the ZEV mandates that exist in California and various other states (requiring electrification in 15% of new light-duty vehicle sales by 2025, which equates to about 4% of new light-duty vehicle sales nationwide).

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Rice team develops “antenna-reactor” plasmonic catalysts for increased energy savings and efficiency in catalytic processes

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Researchers at Rice University’s Laboratory for Nanophotonics (LANP), with colleagues at Princeton University, have developed a new method for uniting light-capturing photonic nanomaterials and high-efficiency metal catalysts, creating an “antenna-reactor” plasmonic catalyst.

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Comparative study finds that B20 increases emission rates of a number of pollutants in both light- and medium-duty diesel engines at idle

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A new study led by researchers at the University of Michigan compared regulated and unregulated emissions from both light-duty passenger car (1.7 Emission rates for the 1.7 and 6.4 L engines at idle.

FEV to show compressed natural gas light-duty concept engine with ATAC combustion system at 2011 SAE World Congress

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The engine is designed for use in light-duty vehicles, and demonstrates the potential of modifying passenger vehicle engines to achieve diesel-like fuel efficiency and power using CNG as an alternative fuel. The lean burn combustion process also offers significant improvements in fuel consumption and CO 2 emissions in comparison with more conventional CNG technology as a result of dethrottling and better combustion efficiency. FEV Inc., (FEV)

HRL Labs team develops 3D printing process for ceramics; propulsion components, microelectromechanical systems and more

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The HRL team developed pre-ceramic monomers that are cured with ultraviolet light in a stereolithography 3D printer or through a patterned mask, forming 3D polymer structures that can have complex shape and cellular architecture.

HZB team devises new Ti4O7 cathode material for Lithium-sulfur batteries

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By comparison, the specific capacity of cathode materials made of TiO 2 nanoparticles is 683 mAh/g.

Mercedes-Benz introducing new diesel family in E 220 d this spring; new OM 654 with 13% lower fuel consumption; diesel “indispensable”

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The cylinder spacing was reduced from 94 to 90 mm in comparison with the previous engine. The efficiency is increased by the higher burning rate in comparison with the previous omega combustion bowl.

2016 38

Swiss team concludes that particulate filters should be mandatory for GDI engines

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By way of comparison, a current Peugeot 4008 (2013, Euro 5b) with a diesel engine and a particle filter was also included.

2017 19

SAE REX: PHEVs and REEVs could open door for advanced combustion regime engines

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Berube went on to reference the importance of DOE’s major new Co-Optima initiative ( earlier post ), an effort to co-optimize new fuels and light-, medium- and heavy-duty engines which together could achieve very significant performance improvements. This fuel economy improvement is reduced to 3% in comparison to a modern CI (i.e.

2016 35

Researchers visualize lithiation of magnetite electrode in real time; hunting for new Li-ion electrode materials

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By comparison, conversion is much easier to see—there are no empty spaces to accommodate the lithium, so the lattice has no choice but to expand, actually breaking the electrode material in some cases.

2016 41

EC proposes 95 grams CO2/km target for new cars by 2020, 147 grams for light vans; super credits for cars below 35g

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The European Commission today proposed targets for the further reduction of carbon dioxide (CO 2 ) emissions from new cars and light commercial vehicles (vans) by 2020. By way of trans-Atlantic comparison, 95 g/km is equivalent to 152 g/mile; the current US Environmental Protection Agency (EPA) greenhouse gas emissions standard (part of the joint national standard with NHSTA) calls for 250 g/mile in MY 2016.

U. of Wisconsin RCCI combustion work progressing; modeled 53% gross indicated efficiency in a light-duty engine could result in 2x fuel savings compared to SI gasoline

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In a recap of RCCI efforts he presented at the SAE 2011 High Efficiency IC Engines symposium earlier this year, Reitz noted that their latest work has shown that, with only small changes in injection parameters, the efficient and low-emission combustion characteristics of a heavy-duty engine using RCCI can be adequately reproduced in a light-duty engine. The team has modeled a 53% gross indicated efficiency for the improved light-duty engine.

JATO Dyanmics Finds Overall Light-Duty Vehicle CO2 Improvement of 2.8% from 2008 to 2009, Based on EPA Data

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Historical comparisons are complicated following changes in the EPAs methodology for 2008 which suggests an increase in CO 2 , versus previous years, although this was nothing to do with manufacturer or consumer action, JATO said. JATO Dynamics recently analysed US Environmental Protection Agency (EPA) CO 2 data for 2008-2009, summarizing volume-weighted average CO 2 by make, model and segment. Earlier post.)

DOE awards more than $20M to advance fuel cell technologies; new report highlights strong market growth

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The US Department of Energy (DOE) has awarded more than $20 million to 10 projects to advance fuel cell and hydrogen technologies, and to enable early adoption of fuel cell applications such as light-duty fuel cell electric vehicles (FCEVs) (DE-FOA-0001224, earlier post ).

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BNEF forecasts EVs to be 35% of global new car sales by 2040; cost of ownership below conventional-fuel vehicles by 2025

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A new study by Bloomberg New Energy Finance (BNEF) forecasts that sales of electric vehicles will hit 41 million by 2040, representing 35% of new light duty vehicle sales worldwide. However, that cost comparison is set to change radically in the 2020s.

A closer look at Audi’s new R8 e-tron EV and battery

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Li-ion cell energy density was increased from 84 to 152 Wh/kg; in comparison to the first technology platform, the battery capacity has grown from 48.6 ft) long Audi R8 e-tron is recognizable by its unique lighting solutions on the air inlets, front apron and sideblades.

2015 47

Lotus Omnivore Engine Shows Up To 10% Better Fuel Economy Than Spray-Guided GDI Engines; Achieves HCCI At Extremely Light Loads

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Comparison of fuel consumption of Omnivore, homogeneous Gasoline Direct Injection (GDI) and Spray-Guided GDI engines. Click to enlarge.

Toyota’s new conventional and hybrid powertrains for 2018 Camry deliver significant boost in efficiency

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inches, respectively, in comparison to the longer stroke of the Camry’s new 2.5-liter inline 4-cylinder power plant.

2017 38

UMTRI study finds US diesel vehicles generally have lower total cost of ownership than gasoline vehicles

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The study — Total Cost of Ownership: A Gas Versus Diesel Comparison —was conducted for Robert Bosch LLC; the results were released at the 2013 Alternative Clean Transportation Expo in Washington DC. Highlights from the diesel-gasoline comparisons include: Total Cost of Ownership.