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

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Changes in the attributes (clockwise from upper left, weight, power, fuel economy and torque) of the Honda Accord over time as an example of fleet trends in the US. In contrast, fuel economy actually increased by 15% during that period. Knittel, 2009. Click to enlarge.

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JD Power 2012 APEAL highlights ongoing downsizing trend for new car buyers in US; increasing satisfaction with smaller vehicles

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The 2012 APEAL Study finds that 27% of new-vehicle buyers who replaced a vehicle downsized—i.e., The downsizing trend also has an impact on owner satisfaction with the fuel economy of their new vehicle. The Audi A8 achieves the highest APEAL Study score of any model in the industry in 2012.

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

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Credit: Audi. liter EA888 Gen3 engine featured in Audi’s all-road shooting brake plug-in hybrid concept unveiled at the North American International Auto Show this week ( earlier post ) features—as does its production ilk—a dual injection system that combines direct injection with indirect injection into the intake manifold.

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

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Audi introduced its new series-production 2.0 The engine also features low fuel consumption levels of less than 5.0 TFSI is a new combustion method, according to Audi. Audi engineers have further developed the Miller cycle approach in crucial ways, the company said. Audi attributed the increase in efficiency in the new 2.0L

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2018 Volkswagen Tiguan powered by 2.0L EA888 Gen3B engine

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Audi engineers described the development of the Gen3B at the Vienna Motor Symposium in 2015. The Audi version of the EA888 Gen3B made its debut in the new A4. Ralf Budack is a thermodynamicist at Audi and was one of the developers of the Gen3B engine) closes the intake valves much earlier. Earlier post.)

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Audis A1 to Launch With Four Engine Options; Energy Recuperation and Stop-Start Standard

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The Audi A1. Audi, which has been teasing out details of its upcoming A1 compact to launch this summer, has provided a more detailed overview of the vehicle, including the drivetrain options. All of the engines employ direct fuel injection and turbocharging. liters of fuel per 100 km (46.1 Average fuel consumption is 5.1

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Navigant Research forecasts plug-ins will be 2.4% of global new vehicle sales by 2023; luxury brands to represent about 50% of that

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Navigant expects sales of plug-in EVs from luxury manufacturers, such as Tesla, Mercedes, Audi, and BMW to grow strongly through 2018 before leveling off at around 50% of the plug-in EV market. Accordingly, Navigant expects this luxury brand push to increase global sales of plug-in EVs significantly in the near term.

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