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SAE Off-Highway Engineering 2012-09-06

2012-09-06
The big engine that could With the stringent EPA 2015 regulations on large diesel engines for locomotive, marine, and stationary generator applications, the need for NOx reduction via urea SCR catalyst arises given the proven performance of urea SCR. Monitoring hydraulics Component producers and vehicle service providers offer their views of hydraulic diagnostics as the industry moves toward real-time, intelligent health monitoring, predictive failure software algorithms, and wireless notification. Engine management expands from minute movements to full vehicle Electronic controls grow in complexity as engine designers extend their scope to include hydraulics.
Magazine

SAE Off-Highway Engineering 2000-06-01

2000-06-01
Technology for small-engine emissions reduction Swiss researchers used a modern four-stroke engine in conjunction with a commercially available catalytic converter and special gasoline to develop a significantly cleaner-running walk-behind mower. Large-scale application of J1939 The SAE electronic systems communication standard provides a method for achieving engineering flexibility, product standardization, parts rationalization, service, and customer convenience. Focus on electronics OEMs and their suppliers are developing vehicle systems for improved vehicle operation and reliability/durability with the help of electronics. The following pages review some recent industry advancements. 2000 SAE International Off-Highway Congress: one for the ages From antique off-highway equipment to the latest in intelligent vehicle technology, the 2000 SAE International Off-Highway & Powerplant Congress & Exposition brings yesterday and tomorrow together today.
Magazine

SAE Off-Highway Engineering 2003-10-01

2003-10-01
Off-highway CVTs A continuously variable transmission can improve the fuel efficiency of heavy-duty diesels by matching the engine's torque/speed to the applied load through the smooth torque multiplication of the transmission. Hydraulics for economics The design of a digitally controlled hydraulic fan drive from Denison Hydraulics is said to help diesel engines run leaner and cleaner. Telematics boosts productivity Advances in electronic technology enables equipment owners and operators to monitor not only usage, but location of equipment. A dumper on tracks Industrial vehicles featuring composite rubber-tracked drive systems have become increasingly popular over the past 10 years, carving out a respectable niche in many specialized industries.
Magazine

Automotive Engineering International 2000-02-01

2000-02-01
Increasing the hydroforming knowledge base Tube hydroforming has become a viable economic alternative to various stamping and welding processes in automotive applications. Controlling two-stroke engine emissions With the constant rich operation of two-stroke engines, common design criteria for three-way catalysts fail. DaimlerChrysler technical symposium A year after the merger that created the new corporation, engineers from both groups came together to present a unified technical symposium to review the future direction of the new organization. Here are some highlights of the more significant technical developments. Vertical complex-shape headlamp reflectors Another improvement in lighting technology gives designers increased flexibility in vehicle appearance with no loss in lighting performance. Advances in static and dynamic exhaust system seating Major redesign, combined with minor improvements in simple details, returns significant benefits in sealing.
Magazine

Automotive Engineering International 2008-11-01

2008-11-01
Managing software growth An increased emphasis on modeling and autocoding makes it easier to add software-based features and functions, driving a sea change in the way complex automotive systems are designed. Going beyond Bin 5 and Euro 5 An early look at some of the emissions-control and aftertreatment technologies and tools aimed at helping automakers meet future U.S. and European regulations. Finding flexibility Although automation is important to achieving flexibility, manufacturers cannot neglect product design, manufacturing processes, and personnel. Looking for a little help Automotive companies increasingly look outside, offshore to get complex designs finished quickly. The autonomous future Like it or not, cars that drive themselves are on the horizon. Will you trade control for safety? Dodge Ram A keen focus on fuel economy centers on improved aerodynamics, powertrain efficiency, and weight-reducing technologies.
Magazine

Automotive Engineering International 2007-11-01

2007-11-01
Cadillac CTS GM's all-new global sports sedan makes no excuses in chassis dynamics, body integrity, powertrain performance, premium materials, and overall craftsmanship. Taking control of hybrids Software must monitor and manage many parameters while coordinating the complex operations of the engine, electric motors, and batteries. LIghter, faster, lower cost Ducati's top engineer brought a "maniacal" approach to developing the 1098 superbike. Diesels' brave new year Lean-NOx catalysts, closed-loop cylinder pressure sensing, and homogenous combustion are making "50-states" diesels a reailty. Behind the curtain AEI takes an in-depth look at how the designers and engineers at General Motors took the company's trio of new crossover SUVs from sketchbook to road. Engineering from everywhere With future growth in car and truck sales coming mainly from emerging markets, companies are realigning their engineering operations accordingly.
Magazine

Automotive Engineering International 2000-10-01

2000-10-01
Speed is king Motorsports offers automakers a fast way to develop new technologies and quick-thinking engineers. This article explores how DaimlerChrysler, Ford, and General Motors approach motorsports as an engineering tool. Electronics: changing the shape of the automobile The decisions made by the automotive industry the next few years will forever change the shape of the automobile. The electronic technologies to improve fuel economy, increase passenger safety, lower emissions, and improve reliability are evolving quickly, but because of their cost the exact timeframe for their implementation is undecided. Chevrolet Corvette The Z06 is the big news for 2001, the new model having a high-output 5.7-L LS6 V8 developed by GM Powertrain. Innovation meets the mid-size segment The 2001 Chrysler Sebring and Dodge Stratus offer more power, enhanced NVH characteristics, and improved safety. Third-generation M3 The all-new high-performance M3 coupe debuts in North America.
Magazine

Automotive Engineering International 2004-09-01

2004-09-01
Ultracapacitors charge ahead The limitations of current energy-storage solutions could encourage consideration of these alternative solutions, but more engineering work needs to be done to reduce costs. Technology for all Automotive industry executives expect high-end technologies, once considered only for inclusion in luxury cars, to increasingly make their way into entry- and mid-level vehicles in the very near future. Convergence continues A lot of automotive electronics ground has been covered at the Convergence conferences past, and there's more to come at this year's show in October. Fueling the next generation As hydrogen joins the battle for automotive power with gasoline and diesel, the future could be more choices rather than one winner.
Magazine

Automotive Engineering International 2009-09-01

2009-09-01
A sense of safety Engineers are looking to combine radars of different ranges, cameras, and sophisticated controls to prevent collisions. Priming the green-car pump In a "perfect storm of opportunity," billions of dollars in federal funding are flowing toward next-generation, made-in-the-U.S. hybrid and electric-vehicle technology. Re-engineering the auto engineer The electrification of the vehicle is boosting demand for engineers with new competencies and skill sets. In Part 1 of this special two-part feature series, AEI examines why the industry needs to encourage and develop its most critical resource-people. Aerodynamics soar Automakers toil to minimize drag and maximize fuel economy.
Magazine

Automotive Engineering International 2008-05-01

2008-05-01
GM's hybrid SUVs: AEI's Best Engineered Vehicles for 2008 The Chevrolet Tahoe Hybrid and GMC Yukon Hybrid get up to 50% better city and 30% better combined fuel economy while still delivering comparable performance thanks to a thorough vehicle re-engineering and an industry-first 2-mode hybrid-powertrain. Bright outlook for diagnostics Telematics will augment more sophisticated data gathering, but challenges are many. Second-generation biodiesels As traditional fuels become more expensive and scarce, the biofuels industry is scrambling to develop more sustainable sources from nonfood agriculture. Global Viewpoints: North America In this special section, some of the North American automotive industry's top executives discuss the latest trends and their strategies for game-changing vehicle engineering and development.
Magazine

Automotive Engineering International 2007-06-01

2007-06-01
Spoilt for choice The auto industry's options list includes biofuels, hydrogen, hybrids, fuel cells, and batteries--but will it be all, or nothing at all? Moving eastward The automotive industry spreads and grows, suppliers move to east Europe, environmental issues are crucial--and the companies survive that get everything right. Hands-on solution to reduce emissions Literally driving the environmental necessities home may support technology in engines old and new. Cutting emissions: more answers than questions The European auto industry is struggling with alternative fuels and emissions reduction programs, but potential solutions are many and varied--any may become even more so. Hydrogen, the IC engine, and the future It may be the fuel of the future, but views vary about how hydrogen should be used.
Magazine

Automotive Engineering International 2010-04-06

2010-04-06
AEI Best Engineered Vehicle 2010- Ford Taurus The readers and editors have selected the most significant vehicle of the year. Ford attacks premium sedan segment with all the technology it can muster. Focused on fuel economy Technology is only part of the solution for reducing vehicle energy consumption. In part 2 of AEI's Fuel Efficiency series, vehicle engineers explain why driver behavior is also a key factor. No stopping safety system advances Engineers are focusing on active systems intergration, especially with radars and cameras, more centralized processing, and silicon germanium for 77- GHz systems. Shedding pounds on a magnesium diet Tough CAFE standards are pushing automakers to consider using more lightweight magnesium rather than aluminum, steel, or plastics.
Magazine

Automotive Engineering International 2010-03-02

2010-03-02
Focused on fuel economy Optimizing vehicle fuel efficiency takes a combination of engineering solutions and driver behavior. In part one of his two-part series, AEI examines the technologies being employed. Part two, coming in the April 6 print edition, discusses drivers' impact on higher mpg. Sound engineering Engineers using advanced tools create the sound of today's vehicles. Collaboration, innovation on the agenda The SAE 2010 World Congress, with the theme "Ecollaboration: engage. exchange. excel," will be held April 13-15, 2010, at Cobo Center in Detroit, MI. With this theme, host company Ford is calling for collaboration as a way to develop innovative solutions to overcome economic and environmental challenges. Speaking of controls Voice recognition has made big strides, but intergrating it into a seamless human-machine interface is a huge challenge.
Magazine

Automotive Engineering International 2012-02-07

2012-02-07
Chrysler's new Tigershark I4s aim for refinement, efficiency Developed in record time, the 2.0- and 2.4-L debut in the 2013 Dodge Dart. The 2.4-L features the first global application of MultiAir II technology. Honda unveils next-gen motorcycle powertrains New engines designed for low-speed torque, fuel efficiency, and riding 'character' are coupled with new DCT and CVT transmissions. Alternative fuels on bumpy road The price of conventional fuels is just one variable that makes it hard to know when fuel-cell, biofuel, and natural-gas technologies will come into their own. Regen braking gets a boost Researchers from Hyundai Mobis detail the development of smart booster brake systems for regenerative brake cooperative control. Efficient & effective leadership Frank O. Klegon, a 30-year SAE member and former product development VP at Chrysler, brings 'customer first' approach to term as SAE International's chief elective officer.
Magazine

Automotive Engineering International 2012-06-05

2012-06-05
Raj Nair's world's-eye view Ford's new global product-development chief discusses engineering resources to meet Asia-Pacific growth, China's challenges, U.S. CAFE, and lightweighting full-size trucks. Raising the bar on SI engine efficiency Highly boosted gasoline engines with 13:1 compression ratio? BorgWarner is tackling gasoline-engine pumping losses and finding many fuel-efficiency benefits as a result. VP of Advanced Engine Engineering Chris Thomas reveals the methodology-and more. GE makes power play into automotive The iconic American conglomerate sees great potential in electric vehicles, helping utility customers upstream ensure reliable and efficient energy delivery for EV customers downstream, says GE's Mark Little. Hybrid-electrified Le Mans Audi and Toyota bring hybrid-electric racecars to the renowned 24-h race.
Magazine

Automotive Engineering International 2012-10-02

2012-10-02
A compact Cadillac to beat the Bimmers General Motors engineers were given a clean sheet to develop the 2013 ATS, Cadillac's all-new compact (and light) sport sedan aimed squarely at the 3 Series benchmark. Re-engineered Ram Thermal management-along with other significant changes-improves Ram 1500 fuel economy and earns EPA off-cycle credits. Honda Accord-the 9th generation The all-new 2013 model brings direct injection, a new CVT, MacPherson struts, safety advances, and a plug-in hybrid version./li> Radios expand by turning to micros Versatile systems use microcontrollers, software to meet wide range of requirements. Heavy on the lightweighting Weight reduction is already a significant consideration in companies' product development efforts, and the emphasis is only going to increase in the years ahead, according to SAE-member survey respondents.
Magazine

Automotive Engineering International 2012-11-06

2012-11-06
Big shifts coming in powertrains During the rest of this decade, many observers expect transmission controls to undergo more changes than in the past 10-15 years. Transmission controls are being revamped to meet tighter fuel economy laws, letting engines run at optimal speeds. Collaborating for cheaper carbon fiber Oak Ridge National Laboratory and several industry partners work together to overcome the challenges to lower-cost carbon fiber. Creating the 54.5-mpg car Part 2 of AEI's three-part series looks at how vehicle engineers are facing a 'stress test' as the countdown to 2025 CAFE begins. How will the aggressive new regulations influence U.S. passenger cars in the next decade-and what will they cost to implement?
Magazine

Automotive Engineering International 2000-01-01

2000-01-01
Car of 2100 A.D. AEI gave readers a chance to speak out on what they thought people in 2100 would be driving. We have chosen the best submissions. Also, the AEI editors have included their best guess as to what cars will be in 2100. We realize that this is a guess but the real answer will not be known for 100 years. V8 power for BMW's M5 The new 294-kW (400-hp) S62 engine developed by BMW's M GmbH features Double VANOS variable intake and exhaust valve timing, electronic drive-by-wire, and oil circulation boosted as a function of lateral cornering force. Northstar revised for 2000 Improvements to the powerplant include a roller-follower valvetrain, improved combustion chamber, center-feed intake manifold, coil-on-plug cassette ignition system, and a Siemens powertrain controller. Aston Martin's first V12 Available in both the DB7 Vantage Coupe and Volante, the flexible all-alloy engine delivers 85% of its peak torque at just 1500 rpm.
Magazine

Automotive Engineering International 2008-07-01

2008-07-01
Motors play an important EV roles Though lithium-ion batteries grab much of the spotlight, improved electric motor technology is crucial in advancing the operation of battery, hybrid, and plug-in electric vehicles. The quality race continues As end-user expectations continue to rise, and pressure on engineering and manufacturing processes spiral, AEI's European Editor interviewed a number of OEM executives for their thoughts on quality and strategies for better vehicles. The real world Convergence 2008 will place emphasis on the challenges of determining and meeting customer needs in creating better electronic systems. A new generation of engine efficiency New technologies help to maximize fuel efficiency, reduce emissions, and deliver market-pleasing performance.
Magazine

Automotive Engineering International 2005-07-01

2005-07-01
Body assembly Automakers cut sheet metal and weld bodies as precisely as possible to lay the foundation for good overall vehicle quality. Handling the ride Delivering a balance between ride and handling has traditionally been a challenge for suspension designers, but suppliers of different technologies are showing how compromise may not be the only solution. Brilliant displays Liquid crystal displays and light-emitting diodes are helping to enable bright, reconfigurable screens. Performance from within Automakers gild profit margins and polish reputations with in-house high-performance divisions. Hybridized SUVs A redesigned hybrid drivetrain gives Toyota's V6-powered SUVs--the Toyota Highlander and Lexus RX 400h--V8-like performance and compact-class fuel economy while achieving the most stringent SULEV emissions standard. Automatic upgrade Toyota's hybrid system gets a transmission overhaul for SUVs.
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