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Audi using supplementary port fuel injection to address particulates from gasoline direct injection

Green Car Congress

In part-load operation, the indirect injection supplements direct gasoline injection to improve fuel economy and to reduce the output of particulates from the engine. GDI technology provides fuel efficiency benefits from charge air cooling, more facile turbocharging, and the downsizing that these permit. Earlier post.).

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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

Simulation study finds Miller version of Scuderi engine can deliver twice the BMEP as naturally aspirated version, theoretically enabling 50% downsizing while maintaining performance. Applying the Miller cycle to the Scuderi engine (right) entails downsizing of the compression cylinder. Source: Scuderi. Click to enlarge.

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Volkswagen of America bringing in downsized 1.8L EA888 engine to displace 2.5L; all vehicles E15 capable

Green Car Congress

The EA888 is one of the Volkswagen Group’s three major engine lines: EA 211 (gasoline engines 1.0l to 1.6l); EA 888 (Gen3 gasoline engines 1.8l The implementation of the new EA888 gasoline unit will help ensure that more than 90% of the cars sold by Volkswagen in the US have these efficient powerplants. liter unit.

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Volvo to concentrate on hybrids and downsized engines for US

Green Car Congress

Volvo Car Corporation will rely on a powertrain strategy based on its new downsized 4-cylinder VEA (Volvo Environmental Architecture) engine platform ( earlier post ) and hybrids for the US market, said John Maloney, recently appointed President of Volvo Cars, US, in an interview at the Detroit Auto Show. Earlier post.) Earlier post.)

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

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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. and is port fuel injected. Source: ETH Zürich. Click to enlarge.

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

Green Car Congress

Use of a variable compression ratio (VCR) could be one technology approach to reducing fuel consumption in highly boosted (e.g., 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.

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Hyundai plans 12 new SUV models through 2021; ICE, hybrid, PHEV, BEV; 2022 Tucson

Green Car Congress

Tucson gasoline and hybrid models will begin availability for the US market in spring 2021, with plug-in models available in summer 2021. liter, direct-injected and multi-port-injected gasoline engine as well as 1.6-liter, of torque at 4,000 rpm, with a targeted combined fuel economy of 28 mpg with front-wheel drive.

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