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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

Green Car Congress

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. Knittel, 2009.

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Volvo Upgrades Power, Lowers Fuel Consumption of 2.5L Flex-fuel Engine

Green Car Congress

Volvo Cars has boosted the power of its five-cylinder, 2.5-liter At the same time, Volvo engineers have cut fuel consumption by between five and six percent depending on transmission. Fuel consumption (EU, mixed driving cycle on gasoline) for the upgraded 2.5FT is 8.8 Earlier post.) L/100 km (26.7 mpg US) (V70) and 8.6

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Toyota & Daimler Merging Hino & Mitsubishi Fuso Truck Brands

The Truth About Cars

Nissan sold its truck subsidiary to Volvo in 2007, Volkswagen renamed its truck and bus unit Traton in 2018 and listed it on the Frankfurt and Stockholm stock exchanges the following year. Hino fell into trouble in March 2022 with the revelation it had been falsifying emissions and fuel economy data dating as far as 2003.

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

Green Car Congress

The team used a MY 2007 Volvo MD11 engine compliant with USEPA 2007 emissions standards. 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 study by Thiruvengadam et al.

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Perspective: A View Into the New GM

Green Car Congress

The morning session started out with an hour long press conference, the highlight being the unveiling of the Volt’s 230 mpg preliminary EPA city fuel economy finding ( earlier post ), as well as a tour showing selected elements from the studios of the four GM North American brands: Chevrolet, GMC, Buick and Cadillac.

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Study Concludes That Class 8 Truck Fuel Consumption Could Be Reduced By Up to 50% By 2017 Using Existing and Emerging Technologies; Current Payback Requirements Could Forestall Implementation

Green Car Congress

Among medium- and heavy-trucks, Class 8 trucks are the largest CO 2 emitters and fuel users, consuming two-thirds of all truck fuel, or 1.57 Current fuel economy for Class 8 trucks is estimated by the US Department of Energy at 6.0 million barrels per day. mpg and projected to rise modestly to 6.8 mpg by 2025 (EIA, 2009).

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How Carmakers Are Responding to the Plug-In Hybrid Opportunity

Tony Karrer Delicious EVdriven

Audi Volkswagen-owned company exploring PHEVs Metroproject Quattro Sub-compact PHEV Concept Car shown October 2007; PHEV of A1 Sportback under consideration Bright Automotive For-profit spin off from Rocky Mountain Institute designing lightweight PHEVs, successor to RMIs 1990s "Hypercar" concept. Has shown some concept fuel-cell PHEVs.

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