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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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General Motors plans to be carbon-neutral by 2040; eliminate LDV tailpipe emissions by 2035

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GM plans to become carbon-neutral in its global products and operations by 2040 and has committed to setting science-based targets to achieve carbon neutrality. The use of GM’s products accounts for 75% of carbon emissions related to this commitment. The company has also signed the Business Ambition Pledge for 1.5?C, Electrification.

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GM to double models with 40 mpg highway or better by 2017; ongoing manufacturing efficiency improvements

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GM has made three product commitments for 2017 related to its sustainability strategy: to have 500,000 vehicles on the road in the US with some form of electrification ( earlier post ); to double the number of US models that can achieve an EPA-estimated 40 mpg US (5.9 In 2012, GM invested more than $7.3 Earlier post.).

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Buick offering 2.0L direct-injection turbo option for 2013 Verano

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Its closest competitor, the 2013 Acura ILX 2.4L, offers a peak of 170 lb-ft of torque, according to GM. GM says that the choice to use a small-displacement turbocharged engine for a more powerful Verano model is consistent with Buick’s effort to downsize its powertrains without sacrificing performance.

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Hitachi Automotive Systems supplying 5 kW/kg high power density prismatic Li-ion cells for MY 2016 Malibu Hybrid

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Featuring a new full-hybrid powertrain which leverages technology from the Chevrolet Volt, the 2016 Malibu Hybrid will offer an estimated combined fuel economy rating exceeding 45 mpg (5.22 GM had earlier used Hitachi’s cylindrical 4.4 Ah Li-ion cell—a downsized and lightweighted version of the 5.5 Cell Specs.

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Range-Extended Electric Hummer H3E by Raser Drives 50+ All-Electric Miles in Test Drive

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The positive results from this test indicate that we can downsize our battery pack, reducing cost and weight of the vehicle, and still achieve the 40 mile all-electric range needed for optimized typical driving. A 100 kW Rase Symetron generator, driven by a GM Ecotec 2.0L Jim Spellman, Raser Vice President of Business Development.

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Ricardo and Growth Energy Collaborate On First Vehicle-Based Demonstration of Ricardos Ethanol Boosted Direct Injection (EBDI) Engine Technology

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Based on test work already carried out, Ricardo estimates that a fuel economy improvement of up to 30% is possible with no loss of power or performance, using a downsized EBDI engine in place of currently available gasoline powertrain technology. fuel economy improvement. Ricardo is replacing a 6.6-liter

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