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GM CEO outlines highlights of fuel economy plan through MY2016: lightweighting; more efficient gasoline and clean diesel engines, electrification

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Within his talk about the need for a US energy policy at the IHS CERAWeek 2013 energy conference in Houston, GM Chairman and CEO Dan Akerson outlined some highlights of the company’s fuel economy plan through the 2016 model year. GM, said Akerson, is doing a much better job optimizing mass efficiency. Clean diesel.

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Buick introduces Volt-based Velite 5 extended-range electric vehicle in China

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The Velite 5, Buick’s first extended-range electric vehicle, made its global debut in Shanghai today. The Velite 5 features GM’s proven EVT electronic controlled intelligent variable transmission. direct injection engine as well as its new-generation lithium battery pack. Top: Buick Velite 5. Bottom: 2017 Chevrolet Volt.

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Tula Technology hits milestone of 1M vehicles produced with Dynamic Skip Fire

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Unlike cylinder deactivation strategies that shut off a fixed number of cylinders, DSF makes dynamic firing decisions every 90 degrees of crank angle on a V8 (180 degrees on a 4 cylinder engine) based on how much torque is requested. Tula’s first DSF innovation reached proof of concept internally in 2011 and with GM in 2014.

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GM’s vehicle electrification roadmap; little focus on conventional hybrids

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Fletcher is responsible for the Extended Range Electric Vehicle propulsion system in the Chevrolet Volt as well as the propulsion systems in GM’s upcoming line-up of Plug-In Hybrid Elecrtic Vehicles. As she outlined it: eAssist provides a average 25% fuel economy improvement over a traditional internal combustion engine vehicle.

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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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Shanghai GM Aims to Reduce Fuel Consumption 15%, Improve Performance 14% by 2015; New Engines, Prototype New Sail Electric Vehicle

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Shanghai GM has outlined the next phase of its “Drive to Green” product strategy—launched in 2008 ( earlier post )—for 2011-2015. The joint venture between GM and SAIC intends to reduce fuel consumption and CO 2 emissions by 15% while improving performance 14% by 2015. liter VVT engine and 1.4-liter Advanced Powertrains.

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GM details 2016 Chevrolet Malibu Hybrid powertrain design and operation

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l/100 km) combined, 47 mpg city and 46 mpg highway; the powertrain shares the transmission architecture with the 2016 Chevrolet Volt extended range electric vehicle (EREV), but includes changes to optimize the system for engine-driven charge-sustaining operation in the range of conditions represented by the US EPA 5 cycle fuel economy tests.