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SAE Off-Highway Engineering 2012-03-08

2012-03-08
Look Ma, no driver Unmanned vehicles evolve quickly as processors, sensors improve performance. Calling all hydraulics engineers As the industry knows all too well, hydraulics engineers are hard to come by; a look at how companies are hiring, training, and, most important, retaining engineers. Making diesels quiet and clear Researchers look at the relative influence of gear design parameters on the rattle noise of a diesel engine timing gear train.
Magazine

SAE Off-Highway Engineering 2012-05-03

2012-05-03
Perkins Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Sustainability matters Cummins Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Ready for more Eaton Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Unskew the talent system and build a sustainable future Sauer-Danfoss Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Value-added engineering takes time out of the equation Bosch Rexroth Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Focusing on technology, for sustainability Mentor Graphics Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Knowledge-keep it, don't lose it Dana Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Sustainability driven by technological innovation and global footprint MathWorks Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Moving toward sustainable product development with model-based design TDT Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Aerodynamic design methodology meets commercial challenges in off-highway industry
Magazine

SAE Off-Highway Engineering 2012-11-08

2012-11-08
Biofuel opportunities and pitfalls Annual growth in biofuels has been strong but is expected to slow in the near future. User interfaces going mainstream Off-highway HMIs use consumer technologies to add functions, simplify tasks. Reducing the environmental impact of hydraulic systems OEMS and their suppliers are creating new hydraulic systems and components, using new fluids and remanufacturing to save energy and reduce the environmental impact of off-highway equipment. Multiple controllers add to EV complexity Model-based design has revolutionized the way products are developed, with design shifting from parts to the whole.
Magazine

SAE Off-Highway Engineering 2013-04-04

2013-04-04
Hybrids step forward Electric and hydraulic systems trim fuel consumption and emissions, boost performance. Braking for safety Researchers developed a simplified ABS/EBS ECU test bench to research the brake force control function of the EBS system using HIL simulation technology. A metered look at dosing pumps High delivery accuracy, low weight, and dependably long life have made solenoid-operated pumps widely used in mobile applications.
Magazine

SAE Off-Highway Engineering 2013-11-07

2013-11-07
Tackling biodiesel's technical challenges Caterpillar researchers are working to mitigate biodiesel's negative effects on engine components and aftertreatment systems. More for less Telematic systems are offering more features and functions for lower prices. Improving actuation speed and controllability With high-speed hydraulic proportional valves, the performance of existing cam phasing systems can be improved or the actuation mechanisms can be applied directly to engine valve actuation.
Magazine

SAE Off-Highway Engineering 2003-04-01

2003-04-01
Off-highway braking According to Mico, electrohydraulic braking controls can provide improved performance and add system features difficult to obtain with hydromechanical mechanisms. Keeping quiet Targeting off-highway and heavy-truck OEMs, Blachford claims its new acoustics laboratory will offer some testing capabilities previously only available to the passenger-car market. ADT marketing and manufacturing While it is not debatable that articulated dump trucks are a hot commodity, it is debatable how many are technologically unique. Proportional pressure reducing valves Engineers from Thomas magnete have designed pilot valves that work with electrohydraulics to simplify complex machine control systems.
Magazine

SAE Off-Highway Engineering 2008-03-01

2008-03-01
In search of the perfect burn The simultaneous download pressures on NOx and PM continue to make research into higher injection pressures and alternative combustion solutions such as homogenous-charge compression ignition attractive. One way to stop a train A new self-energizing electrohydraulic brake offers the advantages of hydraulic brake actuation without the disadvantages of a centralized hydraulic power supply. A model combustion: from art to science Analysis tools, advanced hardware provide insight into combustion process, refining the cylinder's 'big bang.' The datalinked vehicle In the fields and on the job site with GPS.
Magazine

SAE Off-Highway Engineering 2001-06-01

2001-06-01
Cleaner and quieter snowmobiles The University at Buffalo's entry into the Clean Snowmobile Challenge led to modifications of engine, exhaust, body, and electronics to achieve a snowmobile with both lower noise and emissions. Predicting pump dynamics The dynamic behavior of a Parker Hannifin/Abex NWL hydraulic-axial-piston pump was simulated to determine information on pump flow ripple for longer pump life and reduced noise. Electronic engine management for small engines Through an overview of sensor technologies, Cherry Electrical Products confirms that the off-highway industry is ready to benefit from the automotive industry when it comes to electronically controlling small engines. Globally positioning mining vehicles High-tech guidance systems for mining vehicles supplied by companies such as Magellan Corp. are one of the most prevalent uses of global positioning systems in off-highway applications.
Magazine

SAE Off-Highway Engineering 2007-09-01

2007-09-01
Digging with precision Electronic technologies continue to transform the off-highway environment, all the way down to the components used to create electrohydraulic systems, including pumps, valves, and new additions, such as house controllers and sensors. Speeding up design Software automates more tasks, handles challenges. Together for a change On- and off-highway commercial vehicle industries converge at fourth-annual Commercial Vehicle Engineering Congress & Exhibition.
Magazine

SAE Off-Highway Engineering 2011-02-04

2011-02-04
A quiet revolution Optimizing design, while minimizing NVH, in off-highway equipment and systems. Inferential sensing Engineers propose an onboard electronics hardware and software architecture that can deliver condition-based maintenance solutions in a low-cost platform. Lightweight but heavy duty A look at the design, analysis, testing, and application engineering performed to develop a selectively reinforced brake drum made of aluminum metal matrix composite. Shifting gears smoothly Ric Kleine, a 30-year veteran of Cummins Inc. and former SAE Commercial Vehicle VP, seeks continuity over change as he moves into SAE's driver's seat.
Magazine

SAE Off-Highway Engineering 2011-03-10

2011-03-10
Saving space To address packaging constraints in off-highway equipment, engineers developed a fuel vaporizer catalyst that makes for a more compact aftertreatment system. Steering toward safety A look at new technology concepts to overcome design issues inherent in adapting steering angle for heavy-duty applications. A fluid performance Researchers have developed a procedure to measure a fluid's effect on the degree to which mechanical power is efficiently converted to hydraulic power in pumps typical of off-highway applications.
Magazine

SAE Off-Highway Engineering 2006-10-01

2006-10-01
Making sense of engines Heavy-duty equipment is known for its ruggedness in harsh environments, but vehicles are not neglecting their sensitive side. The world's fastest digger gets closer JCB's Dieselmax goes 350 mph and teaches engineers much about engine capability, extreme testing, and program management. The whole system, and nothing but the system Properly implemented, an electrohydraulic system can add a great deal of automatic control, advanced performance, advanced diagnostics, and remote monitoring to a mobile application. Regenerative hydraulics The use of multiple hydraulic pumps can satisfy the needs of various circuits in off-highway equipment. The gas is greener Biofuels promise to help reduce petroleum cinsumption and CO2 emissions, but much of the potential depends on production and infrastructure investments. Material returns Effective use of materials information is important to engineers in development of parts and components.
Magazine

SAE Off-Highway Engineering 2004-10-01

2004-10-01
Beyond batteries the reinvention of a 100-year old electrical energy-storage device could transform heavy-duty hybrid drive systems. Pumping down the volume The design evolution of low-noise spur and helical gear pumps. Tackling Tier 3 Both Cummins and Caterpillar choose the in-cylinder approach to reducing emissions. The telematics fix Diagnostics may be the key to keeping telematics viable and affordable. Complete and intelligent systems SAE 100 Future look: The future of mobile hydraulics can be seen today. Modern mobile hydraulics of today and tomorrow consists of complete system solutions with integrated electronics, which make off-highway machinery more efficient and, at the same time, reduce life-cycle costs. The next step in hydraulics and electronics SAE 100 Future Look: As we celebrate 100 years of SAE's contributions to our industry, it seems very appropriate to look forward at the next few years and assess where we will be.
Magazine

Automotive Engineering International 2001-11-01

2001-11-01
Frankfurt Motor Show The art of automotive product packaging is a complex, multifunctional design and engineering discipline that has led to cars with relatively small overall dimesnions yet remarkable interior space. E-volutions As the movement to improve various supply-chain functions through the implementation of e-business initiatives gains momentum, the providers of the products and services that make the benefits possible are becoming more important to the automotive industry's future. Automakers going digital A math-based, vehicle-devleopment-process strategy has helped General Motors to achieve greater engineering capability, efficiency, and quality. A more redefined Ram Chrysler Group engineers have employed the use of hydroforming, new airbag technology, and aerodynamics, among other things, to improve the design, ride, and safety of the Dodge Ram 1500 for model year 2002.
Magazine

Automotive Engineering International 2004-10-01

2004-10-01
Safe and sensitive Sensor fusion is the latest data sharing scheme for improving the performance of safety systems. BMW counts down to 1 Series The company's latest entry in the premium compact segment comes to market with rear-wheel drive, 50:50 weight distribution, and longitudinally mounted engines headlined by a powerful turbodiesel. Chevrolet re-engineers Corvette Although the new C6 is shorter and narrower than its predecessor, engineers wanted "more power, more passion, more precision" for the two-seat sportscar. 2005 Honda Odyssey The completely re-engineered model features new technologies from the inside out related to safety, performance, and entertainment. Chrsyler 300 / Dodge Magnum The "it" vehicles for the 2005 model year feature advanced technologies such as cylinder deactivation to go along with Hemi power and distinctive styling. Ford makes space for family vehicles Volvo donates its P2 platform for the new Ford Five Hundred, Freestyle, and Mercury Montego.
Magazine

Automotive Engineering International 2005-09-01

2005-09-01
Little parts, big challenges Connectors and chip packages must meet a broad range of requirements in automotive electronic systems. Beyond SOS The telematics business is diversifying as today's providers grow their capabilities. Fuel for thought The demand for clean, renewable energy is driving research into different sources of fuel and new, more flexible engine technologies. Network topology will be key SAE 100 Future look: From the perspective of a global supplier of automotive manufacturing technology, especially in the area of machine control, Siemens views the issue of network topology as the key driver for the future. Driving to global, speaking the same language SAE 100 Future look: Globalization is an essential strategy for success in the automotive industry. The power of turbocharging SAE 100 Future look: Today, more than 50% of all newly registered passenger cars in Europe are turbodiesels.
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 2003-05-01

2003-05-01
Product is king in North America As it does every year, AEI takes a look at automotive industry trends in the three major regions of the world, beginning in this issue with a look at the North American industry and how domestic OEMs and suppliers are shaping its future. Europe will be the focus in June, Japan in August. A powerful mix Traditional and not-so-traditional power sources will share the roads in North America as OEMs and suppliers continue to research and develop a variety of advanced propulsion technologies. Consumer research drivers interior trends OEMs are giving suppliers greater responsibilities not only for delivering vehicle interiors, but also for consumer research that leads to compelling interior designs. Body and chassis developments Advanced technologies are enabling light trucks and SUVs to close the ride, handling, and safety gap with passenger cars.
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 International 2001-03-01

2001-03-01
Toyota Prius: Best-Engineered Car of 2001 Following the Japanese introduction of the first-generation Pruis in 1997, the significantly re-engineered second-generation model features new technology to meet the demands of the Western market, including improved driving performance, lower emissions, and reduced costs. Introducing Niel Schilke, SAE President for 2001 General Motors' former top engineer in Canada brings a systems engineering mentality, along with high expectations, to the SAE presidency. Fuel cells start to look real It is looking more and more as if the fuel-cell-powered car--the long-awaited "clean personal transportation of the future"--is moving from laboratory vision to technical reality, if not yet market actuality. Fuel-cell testing Capabilities that deliver reliable monitoring and control, as well as offer the benefit of a flexible configuration, are critical to keep pace with evolving fuel-cell technology, according to National Instruments.
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