Downsizing, Engine and Resource

Simulation study finds “Millerizing” the Scuderi split-cycle engine could enable 50% engine downsizing with retention of power and torque, along with reduced fuel consumption

Green Car Congress

MAY 20, 2012

Simulation study finds Miller version of Scuderi engine can deliver twice the BMEP as naturally aspirated version, theoretically enabling 50% downsizing while maintaining performance. In a naturally aspirated conventional engine, this would result in a loss of BMEP, but an increase in thermal efficiency. Source: Scuderi.

Downsizing

Downsizing Engine Fuel Power

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

Green Car Congress

NOVEMBER 1, 2011

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.

Downsizing

Downsizing Prius Hybrid Emissions

Concept: Downsized and Supercharged Hybrid Pneumatic Engine for 30%+ Reduction in Fuel Consumption

Green Car Congress

MAY 23, 2009

Schematic of downsized and supercharged four-stroke hybrid pneumatic spark injection engine. The reduction in fuel consumption is obtained mainly through enabling the effective use of a heavily downsized engine, rather than from regenerative efficiency. Source: ETH Zürich. Click to enlarge. Earlier post.). Earlier post.).

Downsizing

Downsizing Concept Engine Hybrid

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

Green Car Congress

MAY 9, 2012

Christopher Thomas, BorgWarner VP, Advanced Engineering, Engine Group and VP, Advanced Engineering, Drivetrain Group presented the basic concepts of VEMB and current BorgWarner test results at the recent SAE 2012 High Efficiency IC Engine Symposium. VCD can deliver about a 4.5% and Sisson, J. and Becker, M.,

Fuel Economy

Fuel Economy Downsizing Economy Engine

Federal-Mogul Introduces New Diesel Piston Design to Support Downsized Engines with Higher Output

Green Car Congress

NOVEMBER 15, 2009

Federal-Mogul Corporation has developed an innovative aluminum piston design that can reliably withstand the mechanical and thermal loads produced by heavily boosted engines, thereby enhancing diesel engine performance and supporting diesel downsizing. Click to enlarge. Click to enlarge.

Downsizing

Downsizing Diesel Engine Design

Study Finds Strong Synergy Between Spark Ignition Engine Downsizing and Low-to-Moderate Alcohol Blend Fuels

Green Car Congress

MAY 1, 2009

A study by engineers from Mahle Powertrain Ltd and BP found strong synergy between spark ignition (SI) engine downsizing and fuel containing low-to-moderate amounts of alcohol, including ethanol and butanol. A Study of Gasoline-Alcohol Blended Fuels in an Advanced Turbocharged DISI Engine. ( O 2 (% wt). Cairns et al.

Alcohol Blend

Alcohol Blend Downsizing Engine Fuel

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

Green Car Congress

JUNE 23, 2014

Cost of the new engine relative to gasoline baseline. The technical focus over the last year has been on new engine installation and performance assessments. In 2013, the Cummins-led team demonstrated a Tier 2 Bin 5 version of the engine on the dyno, and then on a vehicle, while development of the Tier 2 Bin 2 engine started.

Fuel Economy

Fuel Economy Economy Gasoline Downsizing

Volkswagen Group to begin equipping TSI and TFSI engines with gasoline particulate filters from June 2017

Green Car Congress

JUNE 23, 2016

The Volkswagen Group will begin equipping the Group’s new TSI and TFSI gasoline direct injection engines with gasoline particulate filters (GPF). liter TSI engine in the new VW Tiguan and the Audi A5 in June 2017. This will reduce particulate emissions from the direct injection gasoline engines by up to 90%. Earlier post.)

Gasoline

Gasoline 2017 Engine Mercedes

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

Green Car Congress

FEBRUARY 22, 2018

Although GDI vehicles offer the potential of improved fuel economy, less fuel pumping, and charge air cooling, they tend to produce higher particulate matter (PM) emissions when compared with the traditional port fuel injection engines. liter all-guided direct injection SI Atkinson cycle engine; the second was equipped with a 1.5-liter

Gasoline

Gasoline Emissions Engine Fuel Economy

Study finds highly-turbocharged alcohol-fueled DISI engines could be more efficient than diesels

Green Car Congress

NOVEMBER 1, 2010

Highly turbocharged alcohol-fueled direct-injection spark-ignition (DISI) engines operated at a high compression ratio could be as or more efficient than diesel engines while also providing advantages of lower vehicle cost, lower emissions and higher power, according to a recent modeling study by Leslie Bromberg and Daniel Cohn at MIT.

Diesel

Diesel Engine Downsizing Fuel

Penn State, EC Power use internal thermal modulation to enable stable fast charging

Green Car Congress

NOVEMBER 3, 2022

Our fast-charging technology works for most energy-dense batteries and will open a new possibility to downsize electric vehicle batteries from 150 to 50 kWh without causing drivers to feel range anxiety. Keeping batteries consistently at just the right temperature has been major challenge for battery engineers. Credit: EC Power.

International

International Charging Power Powered

Team from GM, Ford, FCA reviews how to calculate engine efficiency benefits of high octane fuels

Green Car Congress

AUGUST 25, 2015

A team of engineers from GM Powertrain, Ford and FCA have published a detailed review of how to estimate the engine efficiency benefits of higher octane fuel—e.g., fuel with higher ethanol content—for part- and full-load operation for different engine types and fuel assumptions. —Leone et al.

Engine

Engine Fuel GM Ford

Delphi Powertrain Study Concludes 3-Cylinder Turbo Gasoline Direct Injection Engine Offers a High-Value NOx and CO2 Solution for Cost-Sensitive Vehicle Segments

Green Car Congress

APRIL 20, 2010

compacts under 1,400 kg in weight—a stoichiometric 3-cylinder turbocharged gasoline direct injection (GDI) engine offers an optimal combination of cost, lower emissions and reductions in fuel consumption, according to an analysis by Delphi Powertrain presented at the recent SAE 2010 World Congress. Earlier post.). Source: Kirwan et al.

Gasoline

Gasoline Downsizing Engine CO2

Scaleo chip introduces Advanced Motor Events Control (AMEC) technology for internal combustion engine and electric motor control

Green Car Congress

MAY 14, 2012

France-based Scaleo chip has introduced AMEC (Advanced Motor Events Control), a technology for internal combustion engines and electric motors control. AMEC—a flexible microcontroller interface for engine control—will be first available in OLEA, Scaleo chip’s new family of microcontrollers optimized for powertrain systems.

Motor

Motor Motors Motoring International

Penn State team develops thermally modulated LFP battery; fast-charging, inexpensive, long-life for mass-market EVs

Green Car Congress

JANUARY 19, 2021

A team of Penn State engineers has demonstrated a thermally modulated lithium iron phosphate (LFP) battery to offer an adequate cruise range per charge that is extendable by a 10-minute recharge in all climates, essentially guaranteeing EVs that are free of range anxiety. A paper on their work is published in Nature Energy.

Market

Market Batteries Battery Charging

Co-Optima releases capstone report on first 4 years of work

Green Car Congress

MARCH 27, 2020

For the past four years, the Co-Optimization of Fuels & Engines (Co-Optima) National Laboratory consortium has focused research efforts primarily on turbocharged (boosted) spark-ignition (SI) engines for light-duty vehicles. The report highlights researchers’ answers to three vital questions: What fuels do engines want?

Alcohol Blend

Alcohol Blend Fuel Engine Fuel Economy

PSA to commercialize SwRI-developed Dedicated-EGR technology in high-efficiency gasoline engines by 2018

Green Car Congress

FEBRUARY 4, 2013

During its recent Innovation Day presentations ( earlier post ), PSA Peugeot Citroën announced that it will commercialize high-efficiency gasoline engines featuring dedicated exhaust gas recirculation (D-EGR), derived from a collaborative program with SwRI in the US. PSA concept D-EGR engine. PSA has filed for two patents on its work.

Gasoline

Gasoline 2018 Engine Commercial

GM, Ford R&D execs stress importance of improved, advanced fuels for future engine efficiency gains, GHG goals

Green Car Congress

APRIL 3, 2017

In separate presentations at the 2017 SAE High Efficiency IC Engine Symposium in Detroit, R&D executives from GM and Ford each stressed the importance of improved, advanced fuels—among other technology developments—for their future engine efficiency gains and for long-term CO 2 emissions goals. —David Brooks.

GM

GM Engine Future Fuel

Ford / AVL study concludes mid-level ethanol blend attractive as a long-term future fuel for use in optimized engines in US

Green Car Congress

APRIL 19, 2013

A study by a team from Ford Motor Company and AVL has concluded that a mid-level ethanol blend—greater than E20 but less than E40—appears to be attractive as a long-term future fuel for the US for use in engines optimized for the higher octane blend. Downsizing/downspeeding. Earlier post.) Earlier post.). Fuel efficiency.

Engine

Engine Fuel Ford Future

DOE awards Envera $2.8M to develop and to test efficient variable compression ratio engine

Green Car Congress

JUNE 22, 2013

VCR 4-cylinder engine (projected data) from a 2011 report by Envera. All three engine BSFC curves correspond to an engine speed of 2000 rpm.Click to enlarge. The new engine will achieve high efficiency using the Atkinson Cycle with an 18:1 compression ratio, combined with aggressive engine downsizing.

Engine

Engine Eaton Fuel Economy Downsizing

DOE BETO seeking input on Optima initiative for co-optimization of fuels and engines

Green Car Congress

DECEMBER 17, 2015

The US Department of Energy, Office of Energy Efficiency and Renewable Energy’s (EERE) Bioenergy Technologies Office (BETO) and Vehicle Technologies Office (VTO) have released a request for information (RFI) ( DE-FOA-0001460 ) titled “Co-Optimization of Fuels and Engines” (Optima). Earlier post.)

Engine

Engine Fuel Fuel Economy Light

New Mahle piston ring coating for high-output GTDI engines; chromium nitride using high-velocity oxygen fuel process

Green Car Congress

SEPTEMBER 16, 2015

Mahle has developed a new thermal spray coating for modern high-output direct-injection turbocharged gasoline engines (GTDI). Under development since 2011 at Mahle’s thermal spray development labs in Michigan, the new process initially was designed for high-output GTDI engines currently in production by two US domestic automakers.

Engine

Engine Fuel Michigan South America

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

AUGUST 2, 2009

Christopher Knittel, of the UC Davis Department of Economics and Institute of Transportation Studies, developed a model to examine the technical relationship between vehicle weight, engine power and fuel economy—to which he refers as a production possibilities frontier (PPF)—and how this PPF shifts out over time. Knittel, 2009.

Fuel Economy

Fuel Economy Downsizing Obama Economy

KAUST team develops method for reliable prediction of abnormal ignition phenomena

Green Car Congress

MAY 29, 2020

Researchers at KAUST’s Clean Combustion Research Center have developed a method to predict and to avoid undesirable combustion events in advanced engines, such as knocking and super-knock. Advanced low-temperature-combustion (LTC) strategies of downsized and boosted engines are capable of offering ultra-low emissions and higher efficiencies.

Downsizing

Downsizing Engine Fuel 2020

Ricardo’s “deep” Miller cycle concept: Magma

Green Car Congress

NOVEMBER 1, 2016

In its new report on downsized and boosted gasoline engine technologies ( earlier post ) the ICCT highlighted Ricardo’s work on an “extreme” Miller cycle concept with high (13:1) compression ratio (CR) and central direct injection in a downsized boosted engine. 1 in the baseline engine to 13.0:1 Resources.

Concept

Concept Downsizing 2016 Congress

Concept Engine: Ilmor Engineering to Show Cutaway of 5-Stroke Engine at Engine EXPO

Green Car Congress

MAY 7, 2009

Rendering of the Ilmor 5-stroke concept engine. Ilmor Engineering will present a new cutaway version of the Ilmor 5-stroke concept engine at the upcoming Engine EXPO 2009, 16-18 June, in Stuttgart, Germany. The 5-stroke concept engine is a self-funded proof of concept. Tags: Concept Engines. Ilmor Overview.

Concept Engine

Concept Engine Engine Concept Exhaust

Tsinghua studies on alcohol-gasoline dual fuel engines show fuel efficiency and particle number benefits

Green Car Congress

AUGUST 10, 2015

In one paper, published in the journal Fuel , they investigated the use of alcohols–gasoline DFSI Combustion for knock suppression and high fuel efficiency using a gasoline engine with high compression ratio. Alcohols are promising alternative fuels for internal combustion engines. —Liu et al. Particle number study.

Gasoline

Gasoline Fuel Engine Fuel Economy

ECONAMIQ: Flexible over-expansion with cylinder deactivation can reduce ICE fuel consumption by up to 20%

Green Car Congress

OCTOBER 29, 2019

Dutch start-up ECONAMIQ is developing a novel engine technology which saves up to 20% in fuel consumption. The “ECONAMIQ principle” uses flexible over-expansion in combination with cylinder deactivation technology to increase performance and efficiency without significantly changing the engine layout or architecture.

Fuel

Fuel San Jose 2019 Engine

U Toronto team assess the climate trade-off between reduced CO2 and increased Black Carbon from GDI engines

Green Car Congress

JULY 14, 2016

The upside of gasoline direct injection (GDI) engines is widely seen as being improved fuel economy coupled with an increase in specific power (especially with turbocharging), enabling significant downsizing. In other words, while the use of GDI engines can reduce CO 2 , it also can increase BC—contributing to further warming.

Climate

Climate Engine Carbon Fuel Economy

ETH Zürich Developing Pneumatic Hybrid Engine; Approaches Hybrid-Electric Performance at Lower Cost

Green Car Congress

FEBRUARY 1, 2009

Pneumatic hybrid engine on the test bench. Researchers at ETH Zürich are developing a pneumatic hybrid engine—an internal combustion engine connected to a compressed air tank instead of a battery system. If fuel is also injected, the engine responds quickly. The compressed air supply also allows extreme downsizing.

Hybrid

Hybrid Engine Downsizing 2009

Air Resources Board Amends Off-Road Diesel Emissions Rule to Aid Compliance

Green Car Congress

JULY 24, 2009

The California Air Resources Board adopted amendments to help business owners comply with its 2007 regulation aimed at reducing toxic diesel emissions from the state’s estimated 180,000 off-road vehicles such as tractors and bulldozers used in construction, mining and other industries. Earlier post.). ARB Chairwoman Mary D.

Diesel

Diesel Emissions 2007 Fleet

Ford study suggests GDI engines can meet coming California and US PM emissions standards over 150k miles; more work to be done

Green Car Congress

OCTOBER 16, 2013

GDI is a strategy to improve fuel efficiency that is rapidly gaining market acceptance, as illustrated by the popularity of Ford’s GDI EcoBoost engines. Homogeneous GDI provides fuel efficiency benefits from charge air cooling, more facile turbocharging, and the downsizing that these permit. Credit: ACS, Maricq et al. Earlier post.)

Standards

Standards Emissions Miles Engine

Daimler Trucks NA SuperTruck achieves 115% freight efficiency improvement over 2009 baseline; 50.2% engine BTE

Green Car Congress

MARCH 27, 2015

Testing was also conducted at the DTNA Detroit engineering facility to demonstrate engine efficiency by achieving 50.2% engine brake thermal efficiency. The Freightliner SuperTruck uses a downsized and downsped 10.7-liter The 390 hp/1400 lb-ft torque (291 kW/1,898 N·m) engine features a revamped combustion system.

2009

2009 Engine Detroit Oregon

Update on DOE Co-Optima project to co-optimize fuels & engines; goal of 30% per vehicle reduction in petroleum

Green Car Congress

NOVEMBER 28, 2016

In October 2015, the US Department of Energy’s (DOE) launched a broad, joint effort to co-optimize the development of efficient engines and low greenhouse-gas fuels for on-road vehicles with the goal of reducing petroleum consumption by 30% by 2030 beyond what is already targeted. How do engine parameters affect efficiency?

Engine

Engine Fuel Vehicles Emissions

MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

Green Car Congress

FEBRUARY 5, 2020

CO 2 and NO x certification test data for heavy-duty diesel engines certified from 2002 through 2019. Manufacturers continue to optimize diesel emission controls, such as DOC, DPF and SCR, in order to promote uniform catalyst coating, improve NO x conversion efficiency, reduce back pressure on the engine, and reduce thermal mass.

Emissions

Emissions Diesel Engine 2010

Delphi develops new high-pressure common rail systems for heavy-duty and light-duty engines; Euro VI and beyond

Green Car Congress

MAY 1, 2012

Delphi Automotive has developed a common rail fuel system technology for heavy-duty diesel engines that combines proven hardware with an innovative architecture, allowing vehicle manufacturers to meet Euro VI emissions standards without significant modification to their base engines. New high pressure heavy duty common rail systems.

Engine

Engine Light Diesel 2000

Concept: Honda RD Developing Variable Compression Ratio Engine with Dual Piston Mechanism

Green Car Congress

APRIL 22, 2009

Engineers from Honda R&D Co., presented a pair of papers at the SAE 2009 World Congress describing the development of a variable compression ratio (VCR) engine enabled by a dual piston mechanism. liter, 4-cylinder engine, the dual piston mechanism was able to adjust the engine from a CR of 9.6 and back again.

Honda

Honda Concept Engine Downsizing

Westport and GTI awarded $900,000 to advance natural gas combustion technology; ESI with high frequency corona discharge ignition

Green Car Congress

DECEMBER 9, 2015

The work will feature Westport’s enhanced spark ignited (ESI) natural gas engine technology ( earlier post ) with the integration and demonstration of high frequency corona discharge ignition on an original equipment manufacturer (OEM) partner’s engine. The engine has a displacement of between 1 and 1.5 Westport Innovations Inc.,

Gas

Gas Downsizing Fuel Economy Engine

Torotrak shifting strategic focus in response to electrification trend; focus on KERS, away from V-Charge

Green Car Congress

JANUARY 31, 2017

Torotrak has been in commercial discussions with passenger car Tier 1s and OEMs as they seek to understand the full capability of V-Charge—Torotrak’s variable-drive mechanical supercharger that can enable ambitious engine downsizing ( earlier post ). This remains true even at very low engine speeds. Click to enlarge.

Charging

Charging Engine Commercial Diesel

Audi introduces new high-efficiency 2.0L TFSI based on Miller cycle; 190 hp, 47 mpg

Green Car Congress

MAY 8, 2015

TFSI gasoline turbocharged direct injection engine for the first time at the Vienna Motor Symposium this week. The engine, which features a new combustion method, will be used for the first time in the next generation of the A4. The four-cylinder engine delivers 140 kW (190 hp) and 320 N·m (236.0 l/100 km (47.0

Audi

Audi MPG Downsizing 2015

CPT/AVL Study: New Generation of Micro-Hybrid Technologies Can Enable More than 25% Reduction in Fuel Consumption at Lower Cost Than Full Hybrid Drive Systems

Green Car Congress

SEPTEMBER 13, 2010

liter ELC-Hybrid to downsized 1.4L VTES + SpeedStart. The paper was jointly authored by CPT engineering director and chief technical officer Guy Morris with Mark Criddle, Mike Dowsett and Toby Heason from CPT and Dr. Paul Kapus and Matthias Neubauer from AVL. TGDI engine and close to the 146 g/km of the current Passat 2.0L

VRLA

VRLA Hybrid Downsizing Fuel

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

Green Car Congress

APRIL 22, 2013

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. In comparison, naturally aspirated engines have a higher compression ratio in the order of 1 to 1.5

Fuel Economy

Fuel Economy Economy Fuel Downsizing

Optimizing a CNG-Fueled Spark Injection Engine for a Parallel Hybrid Powertrain

Green Car Congress

APRIL 24, 2010

In recent years two methods, namely downsizing and downspeeding, were established on the market to reduce CO 2 emissions while maintaining the driving performance of engines with identical effective power but a larger displacement. Active-WG control is used for improvements at all engine speeds (< 5500 rpm).

Engine

Engine Hybrid Fuel Exhaust

MECA report assesses technology feasibility for heavy-duty diesel trucks to meet lower NOx standards by 2024

Green Car Congress

JUNE 11, 2019

The report presents dynamometer test results and emission models from fully aged aftertreatment systems installed on heavy-duty on-road engines to offer several compliance paths that are achievable by model year 2024 without significant changes to today’s engines or aftertreatment systems. g/bhp-hr and a low-load cycle limit below 0.2

Standards

Standards Diesel 2019 Emissions

Simulation study finds “Millerizing” the Scuderi split-cycle engine could enable 50% engine downsizing with retention of power and torque, along with reduced fuel consumption

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

Concept: Downsized and Supercharged Hybrid Pneumatic Engine for 30%+ Reduction in Fuel Consumption

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

Federal-Mogul Introduces New Diesel Piston Design to Support Downsized Engines with Higher Output

Study Finds Strong Synergy Between Spark Ignition Engine Downsizing and Low-to-Moderate Alcohol Blend Fuels

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

Volkswagen Group to begin equipping TSI and TFSI engines with gasoline particulate filters from June 2017

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

Study finds highly-turbocharged alcohol-fueled DISI engines could be more efficient than diesels

Penn State, EC Power use internal thermal modulation to enable stable fast charging

Team from GM, Ford, FCA reviews how to calculate engine efficiency benefits of high octane fuels

Delphi Powertrain Study Concludes 3-Cylinder Turbo Gasoline Direct Injection Engine Offers a High-Value NOx and CO2 Solution for Cost-Sensitive Vehicle Segments

Scaleo chip introduces Advanced Motor Events Control (AMEC) technology for internal combustion engine and electric motor control

Penn State team develops thermally modulated LFP battery; fast-charging, inexpensive, long-life for mass-market EVs

Co-Optima releases capstone report on first 4 years of work

PSA to commercialize SwRI-developed Dedicated-EGR technology in high-efficiency gasoline engines by 2018

GM, Ford R&D execs stress importance of improved, advanced fuels for future engine efficiency gains, GHG goals

Ford / AVL study concludes mid-level ethanol blend attractive as a long-term future fuel for use in optimized engines in US

DOE awards Envera $2.8M to develop and to test efficient variable compression ratio engine

DOE BETO seeking input on Optima initiative for co-optimization of fuels and engines

New Mahle piston ring coating for high-output GTDI engines; chromium nitride using high-velocity oxygen fuel process

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

KAUST team develops method for reliable prediction of abnormal ignition phenomena

Ricardo’s “deep” Miller cycle concept: Magma

Concept Engine: Ilmor Engineering to Show Cutaway of 5-Stroke Engine at Engine EXPO

Tsinghua studies on alcohol-gasoline dual fuel engines show fuel efficiency and particle number benefits

ECONAMIQ: Flexible over-expansion with cylinder deactivation can reduce ICE fuel consumption by up to 20%

U Toronto team assess the climate trade-off between reduced CO2 and increased Black Carbon from GDI engines

ETH Zürich Developing Pneumatic Hybrid Engine; Approaches Hybrid-Electric Performance at Lower Cost

Air Resources Board Amends Off-Road Diesel Emissions Rule to Aid Compliance

Ford study suggests GDI engines can meet coming California and US PM emissions standards over 150k miles; more work to be done

Daimler Trucks NA SuperTruck achieves 115% freight efficiency improvement over 2009 baseline; 50.2% engine BTE

Update on DOE Co-Optima project to co-optimize fuels & engines; goal of 30% per vehicle reduction in petroleum

MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

Delphi develops new high-pressure common rail systems for heavy-duty and light-duty engines; Euro VI and beyond

Concept: Honda RD Developing Variable Compression Ratio Engine with Dual Piston Mechanism

Westport and GTI awarded $900,000 to advance natural gas combustion technology; ESI with high frequency corona discharge ignition

Torotrak shifting strategic focus in response to electrification trend; focus on KERS, away from V-Charge

Audi introduces new high-efficiency 2.0L TFSI based on Miller cycle; 190 hp, 47 mpg

CPT/AVL Study: New Generation of Micro-Hybrid Technologies Can Enable More than 25% Reduction in Fuel Consumption at Lower Cost Than Full Hybrid Drive Systems

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

Optimizing a CNG-Fueled Spark Injection Engine for a Parallel Hybrid Powertrain

MECA report assesses technology feasibility for heavy-duty diesel trucks to meet lower NOx standards by 2024

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