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SAE Truck & Off-Highway Engineering: April 2018

2018-04-05
Connectivity takes center stage Telematic links have become the norm, helping fleet owners and operators improve efficiency and letting OEMs predict component failures. More power, less noise, fewer emissions These key attributes drive development of new generators both big and small. TARDEC pursues advanced power generation U.S. Army, GM collaborate on fuel-cell-generated electricity to power the vehicle's propulsion system and onboard electronics, while providing off-vehicle power via an Exportable Power Take-Off unit. Developing an alternative engine concept Ricardo's CryoPower engine leverages two unique combustion techniques for reduced emissions and fuel consumption-liquid nitrogen and split combustion. Long-haul trucking and stationary power generation will be the first beneficiaries of the technologies. Technology time-warp The road to autonomous driving has been under construction for decades, as showcased by SAE's Mobility History Committee at the 2018 WCX in Detroit.
Magazine

SAE Truck & Off-Highway Engineering: August 2017

2017-08-03
Collaborating on diesel emission control Stringent fuel-efficiency and criteria-pollutant standards call for new combustion strategies. The SwRI-led Advanced Combustion Catalyst and Aftertreatment Technologies consortium reinvents existing technologies and experiments with new catalysts to meet standards. More intelligence equals more efficiency, enhanced functionality Advanced systems require renewed focus on architectures, processors, sensors and networks. Appraising the potential for platooning in the U.S. Researchers from the National Renewable Energy Laboratory perform statistical analysis based on a large collection of real-world U.S. truck usage data to estimate the fraction of total miles that are technically suitable for platooning. Connected commercial vehicles bring cybersecurity to the fore Connectivity, automation and electrification will largely drive vehicle developments in the coming years, according to experts presenting at the revamped SAE COMVEC 17.
Magazine

Automotive Engineering: March 2017

2017-03-02
Thought leadership at WCX17 Lucid Motors' David Moseley: EV or ICE, "It is all physics" New eye on the road One of the industry's hottest tech suppliers is blazing the autonomy trail by crowd-sourcing safe routes and using AI to learn to negotiate the road. Mobileye's co-founder and CTO explains. Hard, slick and ready to roll A tough, self-renewing catalyst coating developed at Argonne National Laboratory provides unprecedented friction and wear protection for vehicle powertrains, the inventors claim. Sensor ICs, semiconductors and safety To achieve ISO 26262 compliance, engineering practices must be taken to a higher level. The following insights may prove valuable for getting there. New VCR targets 40% BTE Variable-compression ratio with VVA from France's MCE-5.
Magazine

Momentum: October 2016

2016-10-03
All about the engine The University of Wisconsin-Madison team increases engine displacement and implements exhaust gas recirculation to maintain winning ways in SAE Clean Snowmobile Challenge. Fluid mechanics of diesel injection studied at Penn State Special photography method helps student researchers get a better look at spray patterns. Under new management A senior-heavy squad from Minnesota State University, Mankato, takes a different approach to team dynamics and jumps 34 spots to 17th overall at the 2016 Formula SAE Michigan competition.
Magazine

Automotive Engineering: October 7, 2014

2014-10-07
Outlook for autonomous driving includes cloud Connectivity with off-board data and services and among vehicles will be crucial in maintaining safety and security in future autonomous vehicles. The next wave of crash simulation As computing speed has improved and software itself has made significant speed and performance gains with each release, modeling tools are now quick enough to build high-quality, large, high-detail vehicle models in a very efficient manner. SAE 2014 Convergence preview Interest in advanced driver-assistance technologies is surging, with automotive engineers and decision makers at OEMs and suppliers working feverishly on the convenience vs. safety trade-off and other electronics-related challenges. Cooled EGR shows benefits for gasoline engines Exhaust gas recirculation systems now in use on diesel engines are used mainly to meet emissions regulations. In gasoline engines, they are an appealing way to meet ever more stringent fuel-economy standards
Magazine

SEP/OCT 2013 AUTO DESIGN

2013-10-04
Exhausting Possibilities A novel herringbone design of exhaust catalyst could be the 'Eureka' moment for emissions reductions, says ACAT Global's CEO Joseph W Moch. Ian Adcock tries to unravel the story behind it A right royal performance An interior influenced by the Jubilee celebrations? James Brewer finds out more Virtually, the real deal OEMs want faster time to market, reduced development costs and ever more sophisticated testing. Ian Adcock reports
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 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 2010-03-11

2010-03-11
Applying emissions control strategies MTU Detroit Diesel comes clean about what it feels is its best path to Tier 4 Interim off-highway emissions compliance.
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 2004-02-01

2004-02-01
North American concepts Cars and car-based crossovers took the concept-vehicle spotlight this year at the 2004 North American International Auto Show in Detroit last month. Renault F1 opens up The company has provided unprecedented access to its new Formula One racecar and surprisingly detailed information on its engine. Cleaner, safer, quieter Testing companies are working to improve equipment and procedures to better match real-world situations in an effort to help automotive suppliers and OEMs in development of future vehicles. Microprocessor requirements soar Networks and emissions control are driving the switch to more powerful 32-bit chips. Hondra brings the hydrogen economy closer The next generation of fuel-cell stacks from Honda offers more power from a smaller package, and a prototype solar-power refueling station delivers the hydrogen fuel. GM hybrid story on SAE Congress agenda General Motors Corp. sees several avenues to a hybrid future, a transit bus leading the way.
Magazine

Automotive Engineering International 2001-07-01

2001-07-01
Driven to test As automotive manufacturers and suppliers continually attempt to cut costs and reduce development cycle times, outsourcing of testing is becoming more prevalent in the industry. Testing resources This section highlights some of the latest testing products, equipment, and technologies used in sundry automotive applications from the industry's suppliers. Transmission options In this comprehensive review of technology, ZF's Group Vice President for Product Development concludes that the future belongs to automated manual, continously variable, and six-speed automatic and manual transmissions with increased capacities. Automotive moodular developments Engineers from Plastic Omnium Auto Exterieur and Inoplastic Omnium discuss design considerations for front-end module and plastic tailgate concepts. Flexible controls architecture for hybrid-electric vehicles General Motors and Motorola collaborate on a prototype vehicle for PNGV.
Magazine

Automotive Engineering International 2000-12-01

2000-12-01
HID for both beams Automotive Lighting engineers have developed HID lighting for high-beam as well as low-beam functions. High-flux LED light sources Hella's advances in LED design provide new options for signal lights and styling variations for indirect lighting. Top 10 technologies for 2000 Readers have selected the most interesting technology stories appearing in Automotive Engineering International during the past year. The rankings are based on reader responses from feature articles and shorter technology items. Some of the stories appear here in shortened form. Synthetic diesel engine oil Researchers at ExxonMobil have developed an advanced lubricant for heavy-duty diesel engines. Disel Emission Control--Sulfur Effects The objective of this government-industry program is to determine the impact of fuel sulfur levels on emissions-control systems of diesel engines.
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.
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