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SEP 2011 AUTOMOTIVE DESIGN

2011-09-30
Spotlight on Sanjay Ravi Mark Fletcher discovers how The Cloud can help the automotive industry Powering Aspirations Ian Adcock reviews technologies at this year's Frankfurt motor show Stop-Start Breakthrough Kami Buchholz reports on an innovative Schaeffler stop-start for automatics
Magazine

SAE Powertrain & Energy 2012-07-25

2012-07-25
The row about rare earths Rare-earth elements are key to applications as varied as traction motors, catalytic converters, and wind turbines, but high prices and supply shortages have the auto industry grappling with design changes and other alternatives.
Magazine

SAE Off-Highway Engineering: October 7, 2015

2015-10-07
HMIs extend beyond the cab Telematics functions are being integrated into multi-function user interfaces. Standards step forward in design of off-highway electronics Functional safety standards are starting to impact many development projects, while the auto industry's AUTOSAR standard is being deployed to help enable software reuse and simplify designs. Leveraging automotive lightweighting techniques to improve off-highway emissions Where systems engineers can gain efficiencies in off-highway equipment is agnostic, they'll take it anywhere, and so they should, but one of the ways, often underestimated, is through the use of strong and lightweight advanced materials. Waste heat recovery for the long haul A WHR system based on an organic Rankine cycle has been developed for a long-haul Iveco Stralis truck.
Magazine

SAE Off-Highway Engineering: April 8, 2016

2016-04-08
Software's role continues to expand Design teams use different technologies to create new software and link systems together. Emissions regulations and engine complexity With the European Commission announcing a Stage V criteria emissions regulation for off-highway, scheduled to phase-in as earlly as 2019, there will be an end to a brief era of harmonized new-vehicle regulations. Will this affect an already complex engine development process? Evaluating thermal design of construction vehicles CFD simulation is used to evaluate two critical areas that address challenging thermal issues: electronic control units and hot air recirculation.
Magazine

SAE Off-Highway Engineering: April 8, 2015

2015-04-08
Hydraulics still in control of off-highway needs Engineers continue to master electronic controllers and software to help systems manage engine speeds and boost efficiency, to the ultimate benefit of both OEMs and end-users. Off-highway calibration challenges-big and complex As the final set of Tier 4 regulations kick in for engines greater than 750 hp (560 kW), calibration efforts must contend with complex engine and aftertreatment systems. Engine manufacturers and service providers deal with this complexity, but does it need to be so? DEF delivery modelling for SCR systems Researchers characterize a 0-D model of a urea delivery module, oriented to model-based control and to the simulation of the system response to fault injections finalized to diagnosis validation.
Magazine

SAE Off-Highway Engineering 2012-09-27

2012-09-27
Polymeric engine bearings for stop-start Gaining momentum on passenger vehicles, hybrid and stop-start technologies are expected to find more application in commercial vehicles. Mahle has developed a proprietary lead-free polymer overlay for bearings that's suitable for this aggressive operating environment.
Magazine

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 2011-04-14

2011-04-14
A model in aftertreatment A look at 1-D numerical models, based on chemical kinetics derived for real-world catalysts, for a vanadium oxide ammonia SCR catalyst and a PGM-based DOC.
Magazine

SAE Off-Highway Engineering 2001-02-01

2001-02-01
Hydrostatic transmissions in conventional envelopes Kubota designed a hydrostatic transmission for a compact tractor to improve operator control and increase efficiency and productivity. Design of a hydraulic free-piston engine Dutch companies Noax and Innas have developed an engine in which nearly all combustion energy is directly converted into hydraulic energy. Optimizing tractive performance Canadian researchers correlate analytical predictions and experimental data to determine that the proper matching of front- and rear-tire sizes, aswell as careful control of inflation pressure and normal load of the tires, is necessary to achieve optimum tractive performance of four-wheel-drive tractors. Actively suspending off-road vehicles The University of Texas Center for Electromechanics evaluated a retrofit electromechanical active suspension that s hows promise of improved cross-country mobility for military vehicles.
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

Mobility Engineering: September 2015

2015-09-01
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.
Magazine

MOBILITY ENGINEERING: June 2016

2016-06-01
Base-engine value engineering for higher fuel efficiency and enhanced performance Continuous improvement in existing engines can be efficiently achieved with a value engineering approach. The integration of product development with value engineering ensures the achievement of specified targets in a systematic manner and within a defined timeframe. Integrated system engineering for valvetrain design and development of a high-speed diesel engine The lead time for engine development has reduced significantly with the advent of advanced simulation techniques. Cars poised to become 'a thing' Making automobiles part of the Internet of Things brings both risks and rewards. Agility training for cars Chassis component suppliers refine vehicle dynamics at the high end and entry level with four-wheel steering and adaptive damping.
Magazine

Autonomous Vehicle Engineering: January 2019

2019-01-08
Editorial Trust, testing and transition SAE Standards News SAE updates J3016 automated-driving graphic View from a Visionary Chris Urmson helped give birth to vehicle autonomy. His company, Aurora, is leading the technology to maturity and widespread adoption. Extending EV Range Using AV Programming Intelligent programming of autonomous electric vehicles offers potentially big energy savings, according to a study by IAV. Intel Study: Autonomous Vehicles Expected to be Common-in 50 Years New U.S. consumer survey sees most Americans "expect" AVs, though many currently fear the technology. Europe's Latest AV Testing Facilities Key for Swift Autonomous Adoption The need for data sharing and commonality in burgeoning AV technologies is bringing new meaning to the words 'proving grounds.' End Public 'Shadow' Driving! The best way to test and train AI for autonomous vehicles is through proper simulation, systems engineering, and an end-state scenario matrix.
Magazine

Automotive Engineering: June 2, 2016

2016-06-02
A 24-hour battle of speed and efficiency At Le Mans this month, amped-up hybrid prototype racecars from Audi and Toyota face a revamped Porsche 919 hybrid, while Ford hopes to recapture glory with its new GT-R. Pushing the ICE forward, gradually Emergent technologies from BorgWarner, Eaton and Mahle aim for greater efficiency in gasoline and diesel engines. Smile, you're on Magna camera! Magna Electronics is rapidly expanding production of its made-in-U.S.A. onboard cameras to keep pace with booming OEM demand for safety and vehicle-autonomy vision-systems technology. Multi-material body solutions: Possibilities and manufacturing challenges The body-in-white is a prime target for lightweighting and many automakers are pursuing unique and effective multi-material approaches, but improved design tools and processes might yield greater gains.
Magazine

Automotive Engineering: June 2, 2015

2015-06-02
Balancing GDI fuel economy and emissions Will OEMs have to adopt gasoline particulate filters to comply with stringent new emissions regulations? Top engineers discuss current developments. 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. Mixing metals Cadillac pursues aluminum/steel mix for new CT6 luxury sedan, leading to advances in body assembly.
Magazine

Automotive Engineering: February 4, 2014

2014-02-04
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.
Magazine

Automotive Engineering: April 7, 2016

2016-04-07
Defying the disruptors and driving innovation Four top engineering executives discuss how their "traditional" companies are finding new technology opportunities and business growth amid the start-ups-and are even doing some disrupting themselves. Preparing for a 48-volt revival The quest to improve fuel economy is not waning, nor is the desire to achieve higher mpg through the use of just the right lightweight material for the right vehicle application. Additive manufacturing enhances GTDI pistons Selective Laser Melting may help manufacture future gasoline-engine pistons with enhanced heat-transfer properties and reduced weight.
Magazine

Automotive Engineering International 2010-06-01

2010-06-01
Steering activated Vehicles are increasingly taking the wheel and steering themselves, with the promise of improved comfort, handling, and safety. Reflections of a product-development revolutionary Bob Lutz revitalized GM's PD process by challenging its protocols- while following his instincts for making compelling vehicles. Commercial success Technology transfer, a Class 8 hybrid, and lightweighting efforts highlight ArvinMeritor's innovation push in the commercial-vehicle space. EcoBoost, DCTs, and stop-start for the masses High-value, high-volume technologies are driving Ford's near-term conventional powertrain strategy, explains engineering chief Barb Samardzich. Breathing new life into Chrysler Engineering Engineering VP Scott Kunselman talks about working with Fiat, taking the lead in vehicle-electrification, and putting the mojo back into Chrysler's product-development team. Watching the charge The fusion of diagnostics and telematics may help boost electric vehicles.
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