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Viewing 1 to 30 of 138
2016-11-16
Magazine
Focus on advanced safety systems and human-factor interventions The impact of REACH on the aviation sector Considered the most comprehensive chemical-regulation legislation to date, REACH presents serious ramifications for the aircraft industry. Lightweighting: What's Next? Experts weigh in on the challenges and future enablers in the battle to reduce vehicle mass. The best of COMVEC 2016 Autonomous vehicles and improved fuel efficiency via advanced powertrain solutions are pressing topics detailed in this select group of technical papers from the SAE Commercial Vehicle Engineering Congress. Optimizing waste heat recovery for long-haul trucks Autonomous solutions in agriculture Downsizing a HD diesel engine for off-highway applications Zero-emissions electric aircraft: Theory vs. reality
2010-11-04
Magazine
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.
2012-06-19
Magazine
No time to sit still Seat developers are revising architectures and components to provide more functions at lower costs.
2012-09-04
Magazine
The Lexus rises again Kiyotaka Ise is leading the effort to redefine the Toyota luxury brand with 'Lexus emotionality.' Hyundai powers ahead Dr. Woong-Chul Yang, Vice Chairman, Hyundai Motor, and the head of Hyundai-Kia R&D, explains how his company is striving to be the most-loved, but not necessarily the biggest car company-with the help of technology and powertrain leadership from Seong-Hyon Park, Hyundai's President of Powertrain. Next-generation lithium batteries step forward Developmental solid-state lithium-ion and lithium-air batteries could one day provide ample EV power.
2012-01-17
Magazine
Designing batteries for longer life Engineers at battery makers are striving to boost life by carefully balancing charge rate, cooling, safety margins, casing size, and protection.
2012-12-18
Magazine
No more molecules! Companies continue to invest in new chemistries for EV batteries, but at least one company in the battery industry thinks it's time to halt the unending search for new chemical formulations and focus on driving down processing costs.
2012-06-26
Magazine
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.
2012-02-21
Magazine
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.
2011-07-05
Magazine
What drives Jaguar Land Rover Group Engineering Director, Bob Joyce, reveals how his company's own- and the auto industry's- overarching strategic engineering and business priorities can be met now and in the future. PSA puts weight behind hybrids With their race and rally expertise, company leaders such as Christian Chehab, General Manager of Transmissions and Hybrid Projects, understand the importance of developing technologies to reach the environmental podium. Lotus prepares to blossom again As the company moves ahead with its five-year model plan, CEO Dany Bahar pledges quality, pragmatism, radical weight saving, and added DNA. Multimaterial collaboration Composites and aluminum are at the heart of Audi and lamborghini's multimaterial approach to R&D, production. Taking control of electrification Control systems are key components not only for battery packs in electrified powertrains but also havea big role to play in power consumption throughout the vehicle.
2011-04-27
Magazine
Rhenium on the rise One of the rarest elements in the Earth's crust, rhenium featurse unique properties that make it desirable for various industries, including applications in aerospace such as jet engines.
2011-05-18
Magazine
Lithium-ion batteries take their seat Cessna introduced a Li-ion main battery on its Citation CJ4 that minimized electrical and avionics architecture changes and enabled continued compatibility with existing Ni-Cd and LA battery options.
2015-12-01
Magazine
Uncertainty quantification The technique is a must for next-generation simulation tools. Oil-pump sizing Researchers from Hinduja Tech investigate options for low friction and power consumption. The future of Indian commercial aviation The growth in traffic that airport modernization has supported has also made a significant contribution to the local and national economies, while the improved infrastructure has been positive for the perception of India in the global market. Driving EVs toward lower cost The race ison to reduce battery and electric-drive systems cost while improving efficiency. Powering on Rolls-Royce's Chief Engineer discusses new technologies that inspire current R&D design and evaluation work as part of its strategic roadmap for future big commercial programs. HMIs extend beyond the cab Telematic functions are being integrated into multi-function user interfaces.
2015-09-01
Magazine
Driving EVs toward lower cost The race is on to reduce battery and electric-drive systems costs while improving efficiency. Seeking ways to make better computer crashes New models and simulations help improve safety as software and hardware provide more realism to iterate designs more quickly. Evaluating aluminum bonds Adhesively joined aluminum alloy sheets present challenges that steel-adhesive joints do not. Ford researchers present a modified technique to inspect Al-adhesive joints in lab and production environments. Leading the attack on engine pumping losses Cylinder deactivation delivers real-world fuel economy gains, helping vehicles to meet and exceed their sticker numbers. That's why the downsized/boosted guys now want it on their engines.
2015-08-18
Magazine
The advent of stop-start technology As environmental concerns grow for R&D teams, OEMs look to bring the strategy further into the mainstream. Recycling opportunities for hybrid/electric vehicle lithium-ion batteries With limited reserves and strict environmental regulations, re-cyclers look to established extraction means to reuse, recycle, and dispose of the used batteries. Cameras look to go the distance Automakers seek vision systems with greater distances, improved reliability, and more functionality, thanks to ruggedized complementary metal-oxide semiconductor technologies. Getting right with composites With composites now a mainstay in most new aircraft de-signs, the engineering emphasis has switched from understanding if they work to thinking through the most efficient way to manufacture them, such as using design-for-manufacturing software.
2016-12-01
Magazine
Editorial: What's old (and revered) is new again Toyota sticking with measured, 'Teammate' approach to autonomous development Straight-sixes are back (with electrification) at Mercedes-Benz McLaren faces the electrified and autonomous future Can low-volume supercars survive amid stringent CO2 regs and robot cars? McLaren is betting £1 billion on a speedy, powerful-and independent-sports-car future. New Peugeot SUVs jump to modular platform, increase composites use Mercedes EQ concept previews 2019 electric SUV 2017 Nissan Rogue adds hybrid system with EV-only mode Renault's kids' racer
2014-11-12
Magazine
Harley-Davidson's e-bike shocker (video) Is the motorcycle market ready for a Harley-Davidson EV? Project LiveWire was designed to provide answers, said Chief Engineer Jeff Richlen. Airbus has its eye on the future of cleaner flight CleanSky 2 targets are to increase aircraft fuel efficiency enough to reduce CO2 emissions by 20-30% and reduce aircraft NOx and noise emissions by 20-30% compared to newly designed aircraft entering into service in 2014-or essentially halve 2005 CO2 emissions levels by 2050. Soul EV extends the range frontier (video) Specially formulated NCM battery cells are key in giving the vehicle class-leading EV range while enabling engineers to fit a high-energy-density battery pack underfloor with little sacrifice of passenger cabin space.
2014-02-04
Magazine
Designing for downforce Airflow is paramount for performance vehicles, which require aerodynamic enhancements to promote high-speed stability and greater cornering capability. Powering a drive to higher voltages 48-V systems are likely to power a new generation of functions including stop-start technology. Managing the deluge of data The model-based development (MBD) process has been a key enabler of technical advancement in the transportation industry; however, the MBD process leads to the generation of large volumes of data artifacts and work products. To maintain efficiency while continuously improving the quality of products, it is necessary to be able to manage this data in an efficient manner. A vision for SAE's future Longtime GM engineering executive and STEM education supporter Daniel M. Hancock brings a focused approach to his term as SAE International President.
2013-02-21
Magazine
In hybrid systems, mild beats wild The coming wave of 48-v mild hybrids aim for maximum benefit at minimal cost.
2013-08-21
Magazine
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.
2013-12-18
Magazine
Fuel cells for auxiliary power OEM and supplier researchers explore the benefits of utilizing solid-oxide fuel-cell APUs to help meet heavy-duty truck anti-idling requirements. Safer EV batteries could enter the crush zone ARPA-e targets "robust" batteries that not only bear loads but also absorb crash-impact energy to save weight.
2015-08-04
Magazine
Chipping in to get more from battery packs Power semiconductors help extend range, keeping their cool while improving efficiency at higher voltages.
2011-03-02
Magazine
Materials become design, design becoems function Once things you could hold in your hand, materials have become more design ideas than entities, and the designs themselves are transforming into operational activity. The next steps in flight A look at sero engine and assembly developments as commercial airframe and engine manufacturers begin the biggest battle of all-for next-generation short-haul jet aircraft sales. NextGen Today and tomorrow The FAA has reached a major milestone on the Next Generation Air Transportation System initiative to modernize America's National Airspace System. Stacking the material deck for the 787 Combinations such as composites and titanium being used in future aircraft programs can be very challenging when drilling holes during manufacturing and assembly operations.
2011-10-04
Magazine
2012 Verano vies for NVH benchmark General Motors 'throws the toolbox' at its new entry-level Buick as it aims to create the quietest compact in the market. Ford charges up Focus EV for 2013 With major engineering support from Magna, Ford's first battery-electric passenger car promises Leaf-blowing features including half the charge time as that claimed by Nissan using a 240-V SAE J1772 Class 2 charge source. Launch of 2012 Camry It was the best of timing, it was the worst of timing As the automotive industry still reels from economic and natural disasters, Toyota looks for blue skies ahead with the introduction of the seventh-generation Camry. New Passat marks VW's return to U.S. production The car is larger than its German-built predecessor but priced thousands of dollars less to match the C/D-class competition. The plant assembly line has 150,000 capacity, over 10 times the 2010 Passat sales volume.
2011-05-25
Magazine
Prime time for batteries Forecasts very on how many, and when, electrified vehicles will hit the streets, but auto and battery makers are ramping up efforts like there's no tomorrow. In energy storage, materials matter Batteries being electrochemical devices, innovation and advances in chemistry and materials are key to what everyone agrees is the need for improved performance and life. Comparing thermal characteristics of Li-ion celss Most Li-ion battery suppliers require that the cell temperature be as uniform as possible to achieve optimal battery performance and avoid battery system failure. But some materials in Li-ion cells have low thermal stability. The world plugs into EVs As matters begin to settle in terms of connector types, charge-station makers are ramping up to meet the needs of a growing population of plug-in vehicles.
2011-09-28
Magazine
Up in arms over robots As one-armed robots improve in accuracy, gradually expect to see more of them as the pressure grows in aerospace to augment manual labor.
2014-10-02
Magazine
QT steels make an impact The use of quenchd and tempered steels for dumper bodies reduces weight and fuel consumption while increasing payload capacity and wear life.
2014-02-11
Magazine
Inside the cell walls The high cost of lithium-ion batteries is a prison that has largely kept electric vehicles off the street; the keys to their release are more effective—but not more expensive—cell chemistries.
2013-04-01
Magazine
PEFCs to transform UAVs Advancements in polymer electrolyte membrane fuel cells have resulted in longer endurance missions for smaller UAVs as well as an enabler for electric aircraft that require vertical takeoff and landing capability. Hovering aircraft programs The AW609 tiltrotor and the X3 compound helicopter offer different technology solutions to the challenge of achieving higher speeds and higher quality point-to-point air transport.
2013-06-18
Magazine
Oak Ridge answers A/C-on fuel use questions The lab runs fuel-economy tests with A/C on maximum vs. A/C 'comfort level,' A/C-off and with windows open and closed. Some results are surprising, including an unexpected 'crossover' point in testing on a Toyota Corolla.
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