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BorgWarner suggests Valve-Event Modulated Boost system can offer 6-17% fuel economy benefit over already downsized and turbocharged engines

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Christopher Thomas, BorgWarner VP, Advanced Engineering, Engine Group and VP, Advanced Engineering, Drivetrain Group presented the basic concepts of VEMB and current BorgWarner test results at the recent SAE 2012 High Efficiency IC Engine Symposium. improvement in fuel economy on an E-class vehicle (e.g.,

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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. A good rule of thumb is that a 10% reduction in curb weight will reduce fuel consumption by about 6.5%.

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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. direct injection engine as well as its new-generation lithium battery pack. The Velite 5 offers up to 768 kilometers (477 miles) of range in extended-range mode. Top: Buick Velite 5. Click to enlarge.

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UC Davis Study Finds That Ultracapacitor-based Micro-Hybrid Systems Can Deliver Substantial Fuel Economy Improvements

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Using a micro-hybrid system featuring carbon/carbon ultracapacitor units as energy storage can result in significant increases in fuel economy over a baseline conventional vehicle, according to a study by Dr. Andrew Burke at UC Davis. The simulations used a “sawtooth” control strategy to optimize the efficiency of the engine.

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VIA Motors and Verizon to collaborate on extended range electric work vehicles; evaluation for possible wide-scale application

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Verizon and VIA Motors will collaborate to develop and to demonstrate plug-in electric work vehicles using VIA’s proprietary eREV (extended range electric vehicle) technology ( earlier post ) and evaluate the technology for possible wide-scale application into Verizon’s fleet. Elements of the powertrain include: 4.3L

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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. DMD, for example, uses pulses of motor operation at high motor efficiency to deliver requested torque.

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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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