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

Green Car Congress

Cost of the new engine relative to gasoline baseline. The approach that Cummins and partners have taken features: Replacing the aluminium V8 gasoline engine and emission control system with smaller diesel (2.8-liter) Earlier post.). l/100 km), and as such would not meet the GHG requirement of 28 mpg (8.4 Source: Cummins.

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

Green Car Congress

HyBoost achieves this by combining aggressive 50% downsizing of the engine with an electric supercharger for transient low-speed performance, and a micro-hybrid stop-start and energy recuperation systems, Boggs said. Downsizing the 2.0-liter Click to enlarge. Click to enlarge. —David Boggs. Micro-hybrid market.

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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.). Earlier post.)

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Study finds technology cost of achieving European 2020 LDV CO2 targets more than offset by resultant fuel savings

Green Car Congress

A report published by Cambridge Econometrics and Ricardo-AEA concludes that overall, the cost of technologies required to meet proposed European 2020 CO 2 regulations for vehicles (95 g/km for cars and 147 g/km for vans) will be more than offset by the resultant fuel savings. Source: Cambridge Econometrics.Click to enlarge.

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ICCT: decline in diesel sales will have negligible impact on attainment of European CO2 emission standards

Green Car Congress

Other technologies—such as efficiency improvements in gasoline engines as well as the rollout of hybrid electric power trains—offer more compelling and cost-effective pathways to reducing CO 2 emissions from European passenger cars, the ICCT says. —The ICCT.

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Survey finds big shift in UK buyers’ attitude to diesel; more concern over running costs than environment

Green Car Congress

UK car buyers are turning away from diesel in favor of gasoline models, according to new research by Whatcar.com. Intelligence survey results, which indicate that more than seven in 10 would be likely or very likely to choose a gasoline car, compared with the four in 10 who would consider buying a diesel. UK market share respectively.

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

Green Car Congress

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. Haake (2012) Two-Stage Variable Compression Ratio (VCR) System to Increase Efficiency in Gasoline Powertrains. Click to enlarge.