Lithium-ion refinement Even as high-profile fires create concern, battery and car makers accelerate their move toward lithium-ion technology with advances in cost, performance, and safety. NASA's quest for maximum efficiency As part of its hybrid body wing aircraft with turboelectric distributed propulsion system, NASA has proposed to use a superconducting and cryogenic electrical system to connect the electrical output of the generators to the motors.
In hybrid systems, mild beats wild The coming wave of 48-v mild hybrids aim for maximum benefit at minimal cost.
When fuel cells fly Emerging hydrogen and fuel-cell-based technologies are being developed for the future replacement of onboard electrical systems in more-electric or all-electric aircraft. Motor controls spin forward Improved power handling and software advances make electrified powertrains more competitive. Multiple controllers adds to EV complexity Model-based design has revolutionized the way products are developed, with design shifting from parts to the whole.
RAV4 EV races to market After just a 22-month development program, engineers from Toyota and Tesla produce an all-electric version of the popular SUV. Integrating in-wheel motors Four publicly disclosed vehicles are examined for which Protean Electric has taken a leading role in converting into electric or hybrid prototypes.
Argonne heats up Li-ion battery research The U.S. Department of Energy lab near Chicago is using federal stimulus money to dive deeper into lithium battery research. Lithium-ion battery industry moves forward From technology advances to manufacturing capacity expansions, the foundation of the lithium-ion battery industry is becoming stronger and more viable.
Putting electrification to work For fleets, going green is a high priority-but making green is an even higher one. A move to 'more electric' engines Researchers detail a motor control design for the fuel system of a more electric aero engine, focusing on the necessary safety and reliability aspects. 2012-13 Hybrid Vehicles Guide A quick reference to the latest production HEVs and their key specifications.
Bang for the buck The best technology solutions for electrified vehicles are the ones that deliver ∼80% of the performance of 'ideal' systems, at ∼60% of their cost. Rise of the P2 machines Newcomers to hybrid-vehicle development are bypassing the Prius-proven powersplit system for lower-cost and moderately less capable single-motor solutions. Rethinking battery and e-motor materials Experts reveal efforts to find lower cost, more strategically stable solutions that can match or improve system performance.
The buzz about electric aircraft Emissions limits force the aviation industry to study hybrid and battery-electric propulsion systems. Car-to-X marks the secure beamforming spot Intelligent networking of cars and infrastructure promises a future of enhanced active safety and traffic efficiency, though as an open and decentralized system, car-to-X is exposed to various attacks against security and driver's privacy. Talking big A look at factors that should be considered by OEMs when implementing a telematics solution in the heavy-duty on- and off-highway mobile equipment markets.
One souped-up EV North Carolina-based Li-ion Motors draws upon the region's motorsports heritage to engineer and build what it calls the world's first all American-made electric supercar. Inductive charging gets green flag U.K.-based start-up HaloIPT partners with Drayson Racing to bring 'dynamic' wireless charging to electric racecars.
Bringing the Leaf to life Chief Engineer Hidetoshi Kadota leveraged 20-plus years of electrification experience in the development of Nissan's new EV. Making a mass-market EV Nissan's Director of Product Planning and Advanced Technology Strategy details the leaf's journey from concept to production. Power from within A new motor and inverter system have been developed simultaneously as the dedicated electric powertrain of the Nissan EV. Staying within range The Leaf comes standard with many features designed to help ease fears of running out of "juice."
Why Volt? After 48 months' development, the 2011 Chevrolet Volt has enetered series production. The pioneering "E-REV" is as important to the mobility industry as it is to GM. Creating the heart of Volt GM's battery requirements meant creating new state-of-the-art in-vehicle engery storage - and doing it in less than four years. Top GM and supplier engineers reveal how they did it. Engineering with maniacal focus A dedicated, cohesive team and a conservative engineering approach put this innovative vehicle into production at moon-shot speed. A unique electrified transaxle Hybrid or not? Definitions aside, what really matters is GM wisely leveraged its next-generation Two Mode propulsion technology to give Volt greater overall efficiency. Sweating the body details Extensive wind-tunnel work gave Volt a shape that's slicker than it looks. But engineers aren't happy with the curb weight.