Toyota implements Atkinson cycle in non-hybrid ESTEC engine; up to 38% thermal efficiency and improved fuel economy

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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

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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.

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

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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

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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.

2017 20

ORNL study finds multi-mode RCCI can offer 15%+ fuel economy improvements across multiple light-duty driving cycles

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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

Qoros Auto unveils drivable engineering development car with QamFree engine; near +50% boost in power & torque, -15% fuel consumption

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At the 2016 Guangzhou Auto Show, Qoros Auto introduced the first drivable engineering development car—a modified Qoros 3 hatchback—equipped with the QamFree engine featuring FreeValve’s Pneumatic-Hydraulic-Electric-Actuator (PHEA) technology. Engines Fuel Efficiency

SwRI develops D-EGR demonstrator highlighting fuel-efficient, cost-effective engine; 10% and above fuel economy improvements

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Southwest Research Institute (SwRI) has built a demonstrator vehicle, based on a 2012 Buick Regal GS, incorporating the latest D-EGR (dedicated EGR) technology ( earlier post ), an outgrowth of SwRI’s HEDGE (High Efficiency Dilute Gasoline Engine) consortium projects ( earlier post ).

2014 12

DARPA awards LiquidPiston $2.5M to advance further X4 rotary engine prototype

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million to continue development of a new, patented, high-efficiency, lighter-weight rotary engine. hp/lb, making it up to ten times (10x) more powerful than a standard diesel engine with the same weight. Water may be injected to internally cool the engine.

CPT, TU Wien study finds 48V mild diesel hybrid cuts engine-out NOx 9%, 4.5% fuel economy improvement

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A joint study by Controlled Power Technologies (CPT) and Austria’s Technische Universität Wien (TU Wien) into 48V diesel mild hybrid technology verified a 9% reduction of NO x in raw engine-out emissions, while retaining the fuel economy and CO 2 benefits of diesel engine technology. —Paul Bloore, CPT’s manager responsible for applications engineering and strategic projects.

Update on the ACCESS fuel efficient engine project; simulations find up to 48.9% improvement in fuel economy over baseline

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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. I4 Ecotec engine. Engine configuration.

2013 11

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. Achates light-duty development engines will be available for automakers.

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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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MJ/kg) (4000 RPM) between 250cc Pinnacle and 200cc poppet valve engine. Net indicated efficiency of the Pinnacle Opposed-Piston engine, CR = 15:1, 87 Octane. Pinnacle Engines’ 4-stroke opposed-piston engine. —Tony Willcox, Pinnacle Engines. Engines

2012 19

GM: new Sierra 5.3L V-8 EcoTec3 highway fuel economy tops Ford EcoBoost V-6

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EcoTec3 V-8 engine ( earlier post ) equipped with direct injection, cylinder deactivation (AFM) and variable valve timing to achieve EPA estimates of 16 mpg city (14.7 In addition to highway fuel economy estimates that are 2 mpg higher than a 2013 Ford V8 pickup equipped with a 5.0L

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

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Increased market penetration of plug-in hybrid electric vehicles (PHEVs) and range-extended electric vehicles (REEVs) across vehicle segments could present an opportunity for emerging advanced combustion regime engines, such as those using various low-temperature combustion modes, according to a number of presentations at the SAE 2016 Range Extenders for Electric Vehicles Symposium held last week in Knoxville. If PHEVs are going to play a big role, what is the fuel source for that?

PHEV 35

DOE awards $17M to FY 2014 SBIR Phase II projects; includes Si/graphene anodes, motor windings, exhaust treatments

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The selected projects include 6 vehicle-related technologies and 2 hydrogen and fuel cell technologies, as well as new hydropower, heat pump, solar and manufacturing technologies. Mainstream Engineering Corp. Hybrid Electric Turbocharger for Exhaust Energy Recovery and Transient Lag Reduction. Mainstream Engineering Corp. The reduced fuel consumption will extend the effective range of the turbo vehicle. NO x Sensor for Diesel Engine Emissions Systems.

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

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

2016 Mazda CX-9 shows 32% improvement in EPA-estimated fuel economy over predecessor; SKYACTIV-G 2.5 turbo

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Mazda North American Operations released EPA-estimated fuel economy figures for its all-new 2016 Mazda CX-9. In Canada, NR Canada estimates of fuel consumption put the improvement at 35%.). engine, which produces the power of a V-6 engine without the fuel-efficiency penalty.

Major refresh on 2015 Honda CR-V with new Earth Dreams powertrain provides fuel economy gain of up to 12%

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The 2015 CR-V features increased EPA fuel economy ratings of 27/34/29 mpg (8.7/6.9/8.1 The CR-V’s 2.4-liter engine has a lighter-weight die-cast aluminum cylinder block with a main-bearing single cradle design that creates a rigid assembly to help minimize noise and vibration.

2014 12

Renault introducing three Energy engines in the Mégane Collection 2012; fuel economy up to 67 mpg US

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The Energy dCi 110 diesel offers fuel consumption of 3.5 The 1.2-liter Renault Energy TCe 115 is the first Renault gasoline engine to feature direct fuel injection and turbocharging for fuel-efficient performance. 16V engine. Engines Fuel Efficiency

2012 12

New 3rd generation Audi TT diesel offers fuel economy of 56 mpg

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The new TT and TTS models will be available with three different four-cylinder engines with turbocharging and direct injection. Standard fuel consumption is 4.2 seconds; top speed is 250 km/h (155 mph); fuel consumption of 6.8 Diesel Fuel Efficiency

2014 12

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

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Results of this study showed that the pre-chamber jet ignition combustion system roughly matches HCCI fuel economy across both NEDC and FTP drive cycles, with a 13% improvement in fuel economy recorded over the baseline stoichiometric (λ=1) spark ignition combustion system.

2011 12

New Chrysler 300 Luxury Series sedan mates 8-speed automatic to V6 Pentastar; up to 17% improvement in fuel economy

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Designed to be the most fuel-efficient Chrysler flagship sedan yet, the new 2012 Chrysler 300 Luxury Series combines an eight-speed automatic transmission with the 292 hp (218 kW) 3.6-liter Pentastar V-6 engine to deliver 31 mpg US highway (7.6 The new model delivers up to a 17% fuel economy improvement compared with the previous generation six-cylinder Chrysler 300 AWD models equipped with 5-speed transmissions. Engines Fuel Efficiency Transmissions

Toyota’s second turbocharged gasoline engine now available in Auris in Japan; 36% thermal efficiency

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Toyota Motor has introduced its second turbocharged engine (following the 2.0-liter in the Lexus NX 200t turbo last year, earlier post ) from a series of new engines with improved thermal and fuel efficiency. Toyota announced the new engine in March at the Geneva Motor Show.

New Volkswagen Polo BlueGT with cylinder deactivation offers gasoline engine fuel economy of up to 52 mpg US

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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 TSI in the Polo BlueGT is the top engine of the entirely new EA211 series of petrol engines. TSI of the Polo BlueGT, an exhaust camshaft adjuster is added.

2012 11

ACCESS project targeting 30% improvement in fuel economy and SULEV emissions in light-duty gasoline engine; multi-mode SI/HCCI combustion

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The A dvanced C ombustion C oncepts— E nabling S ystems and S olutions (ACCESS) is developing advanced combustion control concepts along with with an enabling system, subsystem and component level solutions for the management of multi-mode/multi-fuel combustion events.

2011 12

Infiniti introducing production-ready variable compression ratio engine at Paris Motor Show

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Infiniti will introduce a production-ready variable compression ratio engine VC-T (Variable Compression-Turbocharged) at the 2016 Paris Motor Show (Mondial de l’Automobile) in September. Nissan was awarded a patent in 1995 on compression ratio control for an engine.).

Mercedes-Benz powering ahead with €3B strategic engine initiative; increasing electrification, 48V; diesel and gasoline; cylinder deactivation

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billion) in its strategic engine initiative. The optimization of advanced high-tech engines plays a key role in our road map towards sustainable mobility. The new engines] also need to be designed with a view to all current and future requirements. Coasting with engine off.

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

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Achates Power will work with Delphi Automotive and Argonne National Laboratory on its ARPA-E-funded project to develop an innovative opposed-piston, gasoline compression ignition (OPGCI) engine. Conceptual image of a possible multi-cylinder OPGCI engine. ARPA-E Engines Fuel Efficiency

Report: Mazda seeking 30% boost in fuel economy with HCCI SkyActiv 2 engines around 2020

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Automotive News reports that Mazda plans a second generation of SkyActiv engines around 2020 that would achieve 30% better fuel economy than the current line of Skyactiv engines. The Skyactiv 2 gasoline and diesel engines will focus on improved internal combustion, said Mitsuo Hitomi, executive officer in charge of powertrain development, during a briefing at Mazda’s Yokohama technical center.

Study finds high exhaust temperatures within NTE operation for heavy-duty diesels with aftertreatment systems contribute to high nanoparticle concentrations

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The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. Manufacturers have responded with different technologies and engine control strategies for compliance. Diesel particulate filters (DPF) and urea-based selective catalytic reduction (SCR) exhaust after-treatment systems thus have emerged as feasible strategies to meet the 2010 USEPA regulations. The engine was also equipped with a catalyzed?DPF

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

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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.

BMW upgrading 1 and 3 Series models with focus on fuel economy and emissions; BMW 114d to debut with 1.6L diesel

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Too, the BMW 320i EfficientDynamics Edition Sedan will be available as the first gasoline-driven model with additionally enhanced technology for reducing fuel consumption and exhaust emissions. The number of BMW Models that conform with EU6 exhaust emission requirements will increase.

2012 12

VW introduces new, more efficient TSI engine generation; Miller cycle with higher compression and electric VTG turbo

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The first model in this future generation of spark ignition engines is the 1.5-liter TSI. The fuel-efficient and high-torque gasoline-fueled TSI engine is set to launch in late 2016, initially with outputs of 96 kW and 110 kW. The improvements in fuel economy take effect across a wide range of the engine map—i.e, The cylinder head has been extensively re-engineered. Engines Fuel Efficiency

2016 26

Mazda announces SKYACTIV-X: gasoline Spark Controlled Compression Ignition

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As part of the new technology to achieve this vision, the company disclosed plans to introduce a next-generation gasoline engine called SKYACTIV-X in 2019. SKYACTIV-X—which Mazda believes will be the first commercial gasoline engine to use compression ignition—uses a proprietary combustion method called Spark Controlled Compression Ignition (SPCCI). SKYACTIV-X even equals or exceeds the latest SKYACTIV-D diesel engine in fuel efficiency.

Mazda 34

Corning expands light-duty vehicle exhaust filter capacity in Germany

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Corning Incorporated has boosted its light-duty vehicle filter capacity at its manufacturing facility in Kaiserslautern, Germany for both gasoline and diesel engined vehicles. Diesel vehicle manufacturers are striving for greater engine performance and fuel economy while meeting Euro 6 emissions standards under a myriad of driving conditions. These engines produce a high number of fine particulates that pollute the air.

Opel to launch 3 new engine families, 13 new engines by 2016

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Opel is launching three new engine families and 13 new engines between 2012 and 2016, renewing 80% of its engine portfolio. They will be joined by the end of this year by a new small-displacement gasoline engine family. SIDI Turbo gasoline engine. Fuel consumption.

2013 26

Enerpulse explains mechanism by which pulsed energy ignition plugs enhance fuel economy

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Enerpulse Technologies said that it has further identified the underlying mechanism by which its its pulsed energy ignition technology improves fuel economy, reduces emission and delivers higher torque in spark ignited (SI) internal combustion (IC) engines. —Wes Helgeson, senior research engineer. n-PAC technology is currently packaged inside the physical envelope of a conventional spark plug, making adoption easy for current and future SIIC engine applications.

Independent testing finds Thomas Built Buses with SCR delivers better fuel economy than equivalent EGR system

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A recent, independent, third-party test of a Thomas Built Buses Saf-T-Liner C2 against an IC Bus™ CE Series found that the SCR technology in the Thomas Bus delivers 7-27% better fuel economy than the EGR technology in the IC bus and, when factoring in the cost of diesel exhaust fluid (DEF), is the more cost-effective choice. Industry-recognized methodology, SAE J1526, Type III, was used for calculating fuel consumption differences between vehicles.

Toyota introduces 7th generation Camry for 2012 with improved fuel economy and performance across all models; ~39% jump in EPA city cycle fuel economy for the hybrid

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The projected city/highway/combined fuel economy for the LE model equates to 5.47, 6.03 The 2012 hybrid system produces a combined 200 hp (149 kW)—a 7% gain over the older model—and varies power between the gas engine and electric motor, or combines both, as needed.

Saudi Aramco team finds dual-fuel Octane-on-Demand concept can outperform E30 gasoline

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The concept of using a second, high octane fuel on demand to augment the performance of a standard gasoline fuel reaches back to the 1940s, with a recent resurgence in interest generated by the need to increase engine efficiency. Engines Fuel Efficiency Fuels High Octane Fuels