Trending Sources

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

Green Car Congress

six-piston) light-duty version of its opposed piston engine (OPE) in both diesel- and gasoline-fueled versions. A comparison between the 2.7L

2017 46

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

Green Car Congress

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. mile) radius of the company’s technical center.

2015 25

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

Green Car Congress

The cost comparison is with respect to a Euro 5 baseline. The SIA conference was focused on clean compression-ignition engines of the future.

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

Comparison of ISFC (@42.9 The results represent a light-load indicated efficiency improvement of 15-30% (up to 40.9%). Source: Pinnacle.

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

Green Car Congress

The researchers used the West LA data as a baseline for comparison with the high-mileage fleet measurements. —Bishop et al. Resources.

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

Green Car Congress

15 years and to facilitate comparison with regulations.… Their paper is published in the ACS journal Environmental Science & Technology.

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

Green Car Congress

The LH gasoline hydraulic hybrid shows an extreme reduction in NO x compared to a diesel baseline. Source: Lightning Hybrids. Click to enlarge.

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

Green Car Congress

Sales of light-duty vehicles with alternative powertrains in 2014 was a mix of increases and decreases over 2013 sales. market. Belzowski 2015.

2015 41

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

Green Car Congress

The baseline vehicle for comparison is a 2010 Nissan Titan, outfitted with a 5.6L Light Truck Diesel Engine (Ruth, DEER 2011). Resources.

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

Green Car Congress

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% 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

Green Car Congress

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

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

Green Car Congress

However, transitioning soon to electric drive could lower manufacturers’ compliance costs by as much as €500 (US$532) per vehicle in 2025. —Dr.

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

Green Car Congress

A partial comparison of WLTP to NEDC. Opel said it is committed to providing the testing authorities transparency. Source: AVL. SCR technology.

2015 53

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

Green Car Congress

Area 2: Advanced Technology Powertrains for Light-Duty Vehicles. Demonstration requirements for light-duty vehicles. Click to enlarge.

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

Green Car Congress

The firm polled and interviewed 23 suppliers, almost all of them global Tier 1 suppliers that sell parts directly to automakers. Ricardo survey.

Eaton 20

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

Green Car Congress

Engineers at GS Yuasa in Japan have developed a 12V lithium-ion battery targeting the start/stop systems market. Click to enlarge. Resources. Brief

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

Green Car Congress

Light-driven chemical transformations offer an attractive and ultimately sustainable alternative to traditional high-temperature catalytic reactions.

Light 14

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

Green Car Congress

A new study led by researchers at the University of Michigan compared regulated and unregulated emissions from both light-duty passenger car (1.7

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

Green Car Congress

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. FEV Inc., (FEV) FEV developed ATAC more than a decade ago, targeting large-bore engines in stationary and heavy-duty applications.

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

Green Car Congress

B) The resin is exposed with UV light in a SLA 3D printer or through a patterned mask. (C) Additive manufacturing of polymer-derived ceramics.

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

Green Car Congress

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

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

Green Car Congress

The cylinder spacing was reduced from 94 to 90 mm in comparison with the previous engine. —Prof. Engine. 220 d OM 654. 4/in-line. 487.5.

2016 38

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

Green Car Congress

These discharge mechanisms were then correlated with the battery’s discharge rates. Spinel transition metal oxides—e.g., —Dong Su. (a)

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

Green Car Congress

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. Proposal for a Regulation to define the modalities for reaching the 2020 target for reducing CO 2 emissions from new light commercial vehicles (provisional version).

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

Green Car Congress

The report describes data compiled in 2015 on trends in the fuel cell industry for 2014 with some comparison to previous years. Market report.

2014 17

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

Green Car Congress

The team has modeled a 53% gross indicated efficiency for the improved light-duty engine. Thermal efficiencies were about 5–7% lower in a light-duty engine, due to the increased heat transfer losses associated with smaller engines. Improving RCCI results in a light-duty engine. Source: Rolf Reitz. Click to enlarge.

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

Green Car Congress

million EVs have now been sold worldwide and 2015 saw strong growth, they still represented less than 1% of light duty vehicle sales last year.

Fuel 12

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

Green Car Congress

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. Earlier post.) There is clearly some general improvement here in CO 2 performance of the US vehicle parc.

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

Green Car Congress

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

2015 47

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

Green Car Congress

Comparison of fuel consumption of Omnivore, homogeneous Gasoline Direct Injection (GDI) and Spray-Guided GDI engines. Click to enlarge. 499.6

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

Green Car Congress

Highlights from the diesel-gasoline comparisons include: Total Cost of Ownership. Source: UMTRI. Click to enlarge. Fuel Efficiency. Fuel Costs.

Stanford team develops new approach to overcoming capacity fading in Lithium-sulfur batteries

Green Car Congress

b) Comparison of cycling performance at C/2 with and without the PVP modification. Credit: ACS, Zheng et al. Click to enlarge. earlier post ).

Study: even with high LDV electrification, low-carbon biofuels will be necessary to meet 80% GHG reduction target; “daunting” policy implications

Green Car Congress

For comparison, they team estimated the RFS goal for cellulosic fuels to be equivalent to 1289 PJ. —Meier et al. Credit: ACS, Meier et al.

U Toronto study measures GDI emissions in urban near-road environment

Green Car Congress

In comparison, average PN EFs from a PFI vehicle exhibited less spatial variability, with mean PN EFs 15 m from the roadway 17% lower than those measured 3 m from the roadway. The vehicles in the study were 7 2013 Ford Focus light-duty SE sedans equipped with gasoline direct injection (GDI) engines fueled with commercially available gasoline.

2016 26

Ongoing market rollout for SAE hydrogen fueling standards

Green Car Congress

Comparison between EV charging in SAE J1772 with a Battery Electric Vehicles (BEVs) and SAE J2601 with Fuel Cell Electric Vehicles. DOE and H 2.

DOE issues $35M funding opportunity for hydrogen and fuel cell technologies

Green Car Congress

as well, and not solely for light‐duty vehicles. AOI 1 Topic 1: Hydrogen Production R&D: Advanced High‐Temperature Water Splitting. Champions.

2015 43

Study shows two-stroke scooters dominant source of air pollution in many cities; asymmetric polluters

Green Car Congress

Data on the other vehicles shown are from the literature for light-duty and heavy-duty vehicles (LDVs and HDVs). —Platt et al. and 2.4

Univ of Utah studies find up to 27 seconds of mental distraction for drivers after using new hands-free technologies

Green Car Congress

A head-mounted LED light flashed red every three to five seconds at the edge of a driver’s left eye. The smartphone assistants’ scores were 0.3

Renault unveils electric ZOE e-Sport Concept; 0-100 km/h in 3.2 seconds

Green Car Congress

By comparison, rules laid down by motorsport’s governing body the FIA, limit Formula E single-seaters to 270 bhp. seconds.

GM provides technical details of the Gen 2 Voltec propulsion system used in the 2016 Volt

Green Car Congress

Out of this, the GM team selected several systems for more intensive study and comparison with two benchmark systems from other OEMs. to 10.4L.

2015 56