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SAE Truck & Off-Highway Engineering: December 2021

2021-12-02
Steel sector aids sustainability Volvo Group partners with SSAB on 'green steel' for off-highway machines and with Ovako for access to fossil-free hydrogen. CV autonomy: Picking the 'low-hanging fruit' Increasingly automated commercial vehicles offer challenges and opportunities in simulation, data management and standardization. Developing EV-specific lubes As electric-vehicle technology accelerates, dedicated e-fluids are necessary to maintain proper levels of drivetrain performance. Editorial Real-world emphasis on electric Mahle, Liebherr develop active pre-chamber for hydrogen ICE ABS ramps up commercial-vehicle battery-pack assembly Navistar updates A26 engine, improves FE by 4% Bosch debuts new CV-specific electric motor and inverter Western Star adds 'weight sensitive' 47X to vocational lineup Hyundai CE launches next-gen electric forklift Q&A Mahle's Laurent Art discusses thermal-management challenges, solutions for battery and fuel-cell electric commercial vehicles.
Magazine

SAE Truck & Off-Highway Engineering: April 2021

2021-04-01
Material selection for battery enclosures Mass reduction is the main reason BEV makers choose aluminum for battery enclosures, but cost and thermal requirements favor steel and polymer composites. Startup targets medium-duty EVs Atlis Motors purpose-engineers nearly all the vital components for an electric pickup and platform capable of spanning several market segments. High-voltage hybrids FEV engineers evaluate 48V and high-voltage parallel hybrid architectures for Class 6-7 commercial vehicles. Certain setups show more promise than others. Hemphill's mission: Support the innovation ecosystem Schaeffler America CTO Jeff Hemphill brings impressive technical chops and well-honed communication skills to his new role as 2021 SAE International president.
Magazine

SAE Off-Highway Engineering 2005-04-01

2005-04-01
Hydrogen possibilities Using hydrogen in an internal-combustion engine application requires not only a custom-engineered combustion concept, but also optimized operation strategies. Nets catch on Engineers have been slow to adopt networks, but that is changing quickly as electronically controlled engines take hold. Hydraulic matters There is much potential for gain for everyone if OEMs and suppliers work together early in terms of hydraulic system design. Asia hot on new cooling technology Not tied as much to aluminum as is the West, china and Russia are moving fast toward widespread use of copper and brass for radiators. Build, test, teview, and improve SAE 100 Future Look; Frank Perna, Chairman and CEo of MSC. Software writes about his experience in vehicle engineering, testing, and management positions.
Magazine

SAE Off-Highway Engineering 2005-03-01

2005-03-01
Engine electronics come of age Changes in global standards, combined with engineering know-how, have resulted in a new generation of clean, quiet, and efficient engines. Operators are rolling in the chips Microprocessors and sensors are being combined to monitor the way that equipment is being used, then help operators to perform better in that environment. Gaining weight Perkins' influence in the off-highway industry grows as it evolves its global engine lines and expands its presence in the U.S. What's new at CONEXPO-CON/AGG, Part 2 of 2 A preview of some of the products and technologies that will be displayed at this year's event, scheduled March 15-19 in Las Vegas, NV. Engineering a career Off-highway companies are challenged not only by the ever-changing technology landscape, but also by finding the engineering talent to help them succeed in it.
Magazine

SAE Off-Highway Engineering 2009-06-01

2009-06-01
The diesel engine diet Researchers correlate engine performance and durability with the properties of alternative fuels that consist of vegetable oils and animal fats. Looking at a safer future Software, other sensors will augment cameras as safety's role in the off-highway industry takes an upward spiral. Plastics expand their range From high-speed train exterior panels to powertrain components, plastics and composite materials are finding their way into more off-highway applications.
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 2000-09-01

2000-09-01
Simulating air-conditioning performance A computer program developed by Modine Climate Systems and Modelogics helps determine and optimize air-conditioning system performance. Reduced mass haul-truck design concepts Liebherr Mining trucks adopted a reduced structural mass approach to convert unladen weight directly into payload, while simultaneously incorporating state-of-the-art driveline technology. Optimizing a tractor frame for improved cabin NVH To address an aging agricultural workforce and modern ergonomic guidelines, researchers at Doshisha University and Kubota modeled medium- and large-sized agricultural tractors to reduce vibration and noise and increase comfort. Applying 3d-CAD to turbocharger development Ishkawajima-Harima Heavy Industries has developed a 3d-CAD system for turbochargers. satisfying requirements for digital mockup development.
Magazine

SAE Off-Highway Engineering 2000-12-01

2000-12-01
Lightpipe design According to Breault Research Organization, any off-highway instrument or control that needs illumination is a candidate for a lightpipe to take light from where it is generated to where it is needed. The biodiesel choice Experts from the Natural Biodiesel Board believe it is time to consider alternatives to the current fuel structure. One solution to rising fuel prices is the pursuit of biodiesel fuels. Understanding machining difficulties in gray iron Bosch Braking Systems' engineers look more closely than usual at iron brake rotor samples to give new insights into critical characteristics of the material. Caterpillar mining for customers With commodity prices low, Caterpillar wants to make mining as productive an enterprise as possible for customers.
Magazine

Automotive Engineering International 2004-11-01

2004-11-01
2004 Paris Motor Show Highlights Though themes were distinctly elusive, there was a broad spectrum of technology, design, and styling on display from Europe-based manufacturers. Production-based cars race ahead The SCCA's Speed World Challenge has delivered automakers a U.S. platform for racecars that are closely related to the vehicles they sell. Let's come together Supplier parks are beginning to take hold in North America as automakers and their suppliers look to improve supply-chain efficiency and reduce costs. Grand ride for Grand Cherokee Jeep engineers give the 2005 model more on-road comfort, with all the off-road capability. Land Rovers makes a Discovery The new SUV, to be called LR3 in the United States, is the first all-new vehicle developed under Ford's leadership and is described as the most technologically advanced Land Rover so far.
Magazine

Automotive Engineering International 2003-10-01

2003-10-01
Body control electronics shapes up The electronics revolution is advancing unabated in vehicle and body control, but the addition of features ranging from electronic power steering to tire pressure monitoring poses numerous challenges for electronics engineers. Telematics comes back on line Interfaces will play a huge role in expected growth. Cadillac XLR The new luxury roadster, designed to go head-to-head with models from Mercedes-Benz, Jaguar, and Lexus, uses an all-new 4.6-L Northstar V8 and innovative features such as adaptive cruise control, Magnetic Ride Control, and keyless access. 2005 Ford GT The company's image vehicle helped develop engineering skills in the race to production. Chrysler Pacifica Safety and infotainment features abound in the upscale 2004 sports tourer. 5 Series changes shape BMW adopted an aluminum/steel hybrid body in the interests of light weight and even weight distribution, and worked with ZF Lenksysteme to introduce active steering.
Magazine

Automotive Engineering International 2006-10-01

2006-10-01
Like a rolling home Suppliers are helping automakers engineer vehicles that allow passengers to bring along the comforts of home. Focusing on distraction An explosion of new features, functions poses challenges for safety. Performance goes green With record-high fuel prices and CO2 concerns providing the impetus, automakers are developing more fun-to-drive cars with an eye towards efficiency. GM re-engineers pickips More refined ride, higher-quality interiors, and greater efficiency are some of the highlights of the 2007 models. Jeep takes on tough terrain For 2007, the brand's iconic Wrangler is engineered to be more rugged off-road and more refined on it. Audi updates TT theme The second-generation rendition is bigger, more powerful, and uses a subtle metals mix and match. Vantage: as Aston to the core A common platform strategy is a vital element of the company's design and manufacturing flexibility.
Magazine

Automotive Engineering International 2008-06-01

2008-06-01
Finding the right niche As technology, politics, and OEMs struggle to achieve environmental cohesion, small and niche companies are determined to ride out the maelstrom with their ability to adapt, react, succeed, and survive. Jaguar and Land Rover shift Access to technology and engineering takes center stage as the two brands transition from one giant parent to another as Tata takes over from Ford. Aston Martin bonds The company is developing closer ties with Tier 1 suppliers in its new role as an independent. Bentley has secret CO2 plans The company wants to combine luxury and high-performance hallmarks with massive cuts in emissions. Lotus small and manueverable The engineering arm's technology menu--including lightweight, small engines, and high performance--is being sampled across the world. Porsche looks to the future Gasoline hybrid technology, convergence potential, and diesels could be in store for the company.
Magazine

Automotive Engineering International 2009-06-01

2009-06-01
CO2 changing focus The global economic crisis could trigger novel engineering solutions and the need for comprehensive testing. ZEVs, fuel cells, and high-tech engines Only 10% of cars on Europe's roads by 2020 may be zero-emissions vehicles, but Mercedes-Benz is supporting future ZEV and other advanced technologies with an undiminished R&D budget. Warning signs Design and engineering lead-time tightening may be strangling innovative thinking, says Royal College of Art's Harrow. The decade ahead Renault anticipates that a majority of its powertrains will be downsized to the 0.9- to 1.2-L range and that electric cars will appeal to 30% of the buying public. Automatic for the people Automatic-shifting dual-clutch transmissions are poised to grab share from traditional transmissions thanks to their combination of efficiency and convenience.
Magazine

Automotive Engineering: June 2021

2021-06-03
Teardown Titan Munro & Associates is leading competitive analysis into the EV age - and spreading the gospel with a global YouTube fan base. Lightweight steel on a (cold) roll A newly developed high-strength steel for cold stamping aims to beat aluminum for EV battery enclosures and other vehicle applications. How EVs and their electronics stick together New adhesives play an increasingly vital role in vehicle structures, battery packs, and in protecting sensitive electronic components from extreme thermal cycling and contaminants. Editorial Farewell and thanks, Mr.
Magazine

Automotive Engineering: June 2020

2020-06-04
Tesla casts a new strategy for lightweight structures The EV maker boldly invests in the world's largest aluminum die-casting machine to manufacture entire rear underbody structures. Steel the Real Deal Steel's infinite recyclability will help it remain the auto industry's material of choice, insists Tata Steel Europe's CCO. Tesla's Cybertruck is audaciously austenitic A proprietary 301-series stainless steel gives Tesla's first pickup truck unique sales attributes while saving tooling cost. Lightweight design beyond CAD New computational tools enable an integrated data-fusion approach to complex, mixed-materials engineering. An expert from nTopology explains. Editorial Impressions of a rocket launch SAE Standards News New Cooperative Driving Automation standard provides clarity to support advancement of full automation Supplier Eye Now comes product-cadence chaos What We're Driving Can CHAdeMO 3.0 standardize global EV quick-charging?
Magazine

Automotive Engineering: September 2021

2021-09-01
Weaving a new future for composites In a shift perhaps as prolific as steel to aluminum, woven plastics may finally bring the magic of composites to cost-effective mass-production. New composites target EV applications No longer a low-volume play, the latest composite materials offer EV developers new options for lightweighting, thermal management and structures. Acura TLX is Honda's new body-build benchmark All-new for 2021, Acura's midsize sport sedan gets an exclusive platform to go with its structural, materials and dynamic advancements. Body development leader Jeremy Lucas explains. Schaeffler builds an e-motor powerhouse Armed with state-of-the-art manufacturing and a history of innovation, Schaeffler Group is attacking the e-mobility space, says Daniel Sayre.
Magazine

Automotive Engineering: September 2020

2020-09-01
Superlight superbike: 2021 Ducati Superleggera V4 Ducati pioneers the first street-legal production motorcycle with a full carbon-fiber chassis, as well as advanced aerodynamics. CFRP technical resources New 2020 SAE Technical papers detail current carbon-composite material developments. Virtual and physical testing of Third-Generation High Strength Steel Evaluating a new high-strength steel's ability to improve an existing stamped-steel production part. Static testing of EV components Firing nails into your latest Li-ion battery pack is but one of many regimens in the comprehensive testing of new electric vehicles.
Magazine

Automotive Engineering: May 2021

2021-05-06
Software transforms vehicle development Software-defined vehicles are driving major changes in hardware and control architectures. Model-based analysis of e-motor designs Observing the magnetic field distribution, electromagnetic torque, and iron loss distribution allows engineers to optimize specific performance with minimal weight and material costs. NVH simulation meets realism New toolsets help reduce development time and bring sound and vibration data into the real world. Metamaterials R&D targets NVH abatement Nissan readies its lightweight acoustic solution for 2022 production - will Hyundai follow?
Magazine

Aerospace Engineering & Manufacturing 2008-03-01

2008-03-01
Making an impact in fastening Engineers at Electroimpact help the company get a leg up on the competition in automated fastening. Narrowing in on military requirements UAVs/UCAVs are increasingly important, with the accent on integration- and wider engine choice. Machining and turning centers take center stage Makers of CNC machining equipment are incorporating more and better functionality into their products so users cope better with processing challenges such as those posed by tough new grades of aerospace materials. Open (and often) communication As aircraft companies battle for market share, uniting design and manufacturing teams remains a key challenge.
Magazine

Aerospace Engineering & Manufacturing 2008-06-01

2008-06-01
From concept in mind to product in hand Compatibility between tools for design and manufacturing engineers is improving, though it's still fraught with potential pitfalls. Cockpits on display Larger (and eventually bendable) flight displays use commercial technology for both new production and retrofit applications. Interior interests Makers of business aircraft take different approaches to designing interiors. Aerospace proves its metal Aluminum lithium, magnesium alloys, titanium metal matrix composites, and advanced coatings are all part of the future of flying.
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