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

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The result of their work, presented in papers this spring at the SAE 2014 World Congress, the Vienna Motor Symposium, and the JSAE Annual Congress, is the new 1.3-liter liter ESTEC (Economy with Superior Thermal Efficient Combustion) in-line 4-cylinder Gasoline Engine (1NR-FKE). —Yamada et al. Trend of engine efficiency.

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

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The VEMB system uses a concentric camshaft, blow-down manifold and scavenge manifold to separate the exhaust event into two phases: high-energy blow-down to the turbo without pumping losses, and high-hydrocarbon scavenge to the EGR system. to 2 ratio points and maintain the same knock limit for an additional 3-4% improvement in fuel economy.

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ARPA-E awards $32M to 10 new projects to improve connected and automated vehicle efficiency

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The Energy Department’s Advanced Research Projects Agency-Energy (ARPA-E) announced up to $32 million in funding for 10 innovative projects as part of the Next-Generation Energy Technologies for Connected and Autonomous On-Road Vehicles (NEXTCAR) program. Earlier post.) NEXTCAR Awards. Organization. Description. General Motors.

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Environment Canada/MECA team assesses black carbon emissions in GDI engine exhaust; evaluation of prototype gasoline particulate filter

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They also presented the performance of a prototype GPF on removing BC particles from a selected GDI vehicle at various conditions. The major difference between the PFI and GDI engines lies in the fuel injection method and mixture preparation. Ford Transit Connect PFI vehicle (PFI#2). —Chan et al. —Chan et al.

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2015 VW Jetta TDI: a more refined, powerful and efficient diesel within a nicely redesigned model line

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TDI Clean Diesel EA288 engine ( earlier post ) with an EPA-rated highway fuel economy rating of 46 mpg with the manual transmission (45 mpg automatic). It is one of the most fuel-efficient engines in its class, and already conforms to the LEV3 emissions standard in the US. Fuel economy improvement. 2014 Jetta TDI.

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New TNGA Dynamic Force 2.0L engine for 2019 Corolla Hatchback smaller, more powerful than 1.8L

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The engine also features Dual VVT-i (Variable Valve Timing-intelligence), with VVT-iE (Variable Valve Timing-intelligence by Electric motor) on the intake side and VVT-i on the exhaust. Together, the valve timing systems enhance power output and fuel economy, and cut harmful emissions. Earlier post.).

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NSF and DOE form Partnership on Advanced Combustion Engines; goal 25-40% better LDV fuel economy and 55% BTE in heavy-duty engines; $12M in awards for FY 2012-2014

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The high-level performance goals of the Partnership are a 25-40% improvement in fuel economy in a light-duty vehicle (LDV) and achieving 55% brake thermal efficiency (BTE) in heavy-duty engine systems. At the present time, sustainable energy technologies (e.g., The potential is significant.