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Magazine

SAE Off-Highway Engineering: November 6, 2014

2014-11-06
Calibration and complexity Off-highway engine applications continue to increase in complexity to meet emissions regulations and fuel economy targets as well as to take advantage of advances in electrification and mechatronics. The model-based calibration process has become the industry standard. ECU advances take many paths Controllers are evolving rapidly, with a range of microcontrollers distributed throughout the vehicle Working remotely A new electrohydraulic steering technology that offers energy efficiency improvement, increased productivity, enhanced safety, and adaptability to operating conditions also has the capacity to support remote operation of a compact wheel loader.
Magazine

SAE Off-Highway Engineering: December 2, 2015

2015-12-02
Improving heavy-duty engine component efficiencies Cylinder deactivation can improve fuel economy by using a reduced number of cylinders that operate at higher loads and thermal efficiency, while other cylinders are turned off, when the engine operates at partial load conditions. A switching roller finger follower is one of the technologies that help make it work. Pumping up hydraulic capabilities Electrohydraulic advances keep coming as distributed electronics flex their muscle. Tracking the trends in commercial vehicle communications Industry insiders at Molex offer what they think the future may hold for heavy-duty components in 24/7 communications systems. ADAS system validation It is crucial that different advanced driver assistance systems functionalities interact seamlessly with existing electronic control unit (ECU) networks.
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 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 2009-08-01

2009-08-01
Bosch Rexroth Executive Viewpoints-Vehicle Development Insights from Industry: Off-Highway 2020 and Beyond- - Insights from the inside. Briggs & Stratton Executive Viewpoints-Vehicle Development Insights from Industry: Off-Highway 2020 and Beyond- Collaborations will drive success in the future. Cummins Executive Viewpoints-Vehicle Development Insights from Industry: Off-Highway 2020 and Beyond- Achieving more for less. Dana Executive Viewpoints-Vehicle Development Insights from Industry: Off-Highway 2020 and Beyond- Off-highway realities. Delphi Executive Viewpoints-Vehicle Development Insights from Industry: Off-Highway 2020 and Beyond- Communicating 2020 style. Eaton Executive Viewpoints-Vehicle Development Insights from Industry: Off-Highway 2020 and Beyond- My electronic crystal ball is full of hydraulic fluid.
Magazine

SAE Off-Highway Engineering 2002-06-01

2002-06-01
The history and future of two-stroke engines While supporters of two-stroke engines emphasize their advantages, naysayers have for years been predicting the death of the little engine that could. Active suspension systems Engineers from Birrana have designed a load-sensing system for mining trucks and haulers that reduces torsional, vibration, and shock loads on a vehicle's structure. CFD simulations inside hydraulic valves Engineers from HUSCO studied the forces induced by oil flow on hydraulic valve actuators with the aim of minimizing their effects. Electronic control for transmissions A third-generation transmission electronic control system developed by Allison primarily for mobile equipment applications will be phased into all of its off-highway transmissions.
Magazine

SAE Off-Highway Engineering 2002-02-01

2002-02-01
Evolution of ac-drive technology The introduction of inverter drives has stimulated development of the ultra-class haul trucks in operation today. Hydraulics in the age of specialization Today's hydraulics are to earlier systems as Sim City is to Lincoln Logs. Increasing sophistication has changed the way companies such as Eaton and Caterpillar build equipment, while users' expectations and regulators' demands keep rising. IT-tool for intelligent motion control A Danish mechatronic research program focused on intelligent motion control for rapid prototyping of fluid-power components and systems.
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

MOMENTUM: APRIL 2017

2017-04-03
All about electronics UniBo Motorsport of the University of Bologna in Italy details its self-developed electronic control units and strategy for use in its Formula SAE cars. Golden Bear strong A dispatch from the coalfields of West Virginia describes the unique set of challenges faced by the Baja SAE team at West Virginia University Institute of Technology. And the SAE Collegiate Cup for best communicators goes to… The Kettering University's snowmobile team for its outstanding presentation to the SAE Mid-Michigan Section.
Magazine

MOBILITY ENGINEERING: June 2018

2018-06-01
Roadmap for future Indian passenger drone sector Internet of Vehicles: connected vehicles & data - driven solutions Development and verification of electronic braking system ECU software for commercial vehicle Engineering the Motivo Way Broad capabilities, unparalleled project diversity and an innovative culture have put this thriving California "idea factory" in high demand. 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. Spark of genius Mazda's Skyactiv-X-the nexus of gasoline and diesel tech-remains on track for 2019 production. We test-drive recent prototypes to check development status. Plain bearings for aerospace applications
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

Automotive Engineering: May 2017

2017-05-04
Innovations for lightweighting Tough fuel-economy bogies for 2021 and beyond are driving new approaches to materials use, as seen in these case studies. Axellent progress AAM's new Quantum drive-axle technology is a leap forward in lightweight, efficient driveline systems aimed at 2020 and beyond. Low-temperature combustion ready for prime time? At SAE's High-Efficiency IC Engines Symposium, Delphi said its new, third-generation GDCI is promising, but even LTC proponents admit that challenges remain. More automation for ECU testing The latest fault-insertion tests enable engineers to run more test cases in less time.
Magazine

Automotive Engineering International 2012-10-23

2012-10-23
Seeking validation Increased system complexity poses new challenges for software design and ECU system validation, mandating the need for simulation tools that can easily handle the complexity, while providing cost-effective, industry-proven verification tools and processes. Mapping the road to 54.5mpg Part 1 of AEI's three-part series looks at the CAFE challenge and the product-development options being weighed to meet it-while engineers look forward to the critical 2018 mid-term review.
Magazine

Automotive Engineering International 2011-02-01

2011-02-01
Shifting gears smoothly Richard E. Kleine, a 30-year veteran of Cummins Inc. and former SAE Commercial Vehicle VP, seeks continuity over change as he moves into the driver's seat of SAE International. Top new engines AEI editors highlight the most significant internal-combustion powerplants of the new year and beyond. Riding on in-wheel motors Researchers analyze passive concepts and new mechatronic suspension systems to ensure vehicle comfort and safety when using in-wheel motors with different torque requirements.
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 2003-07-01

2003-07-01
A different automatic Developed in conjunction with BorgWarner, Volkswagen's DSG automatic six-speed gearbox is aimed at enthusiasts and has fuel consumption superior to a manual gearbox. Accident avoidance GM and Delphi are testing adaptive cruise control and collision-warning technologies in the hope of ultimately increasing driver awareness and reducing driving behaviors that can lead to accidents. Branding vehicle dynamics The use of active systems and common hardware across several vehicle platforms, with different calibrations and control algorithms, can offer variations in character and brand, according to Prodrive Automotive technology. The drive for improved dynamics For the new XJ, Mike Cross, Jaguar's Chief Engineer for Vehicle Integrity, and his team aimed to preserve the isolation and feel of the previous car, but instill the handling precision and steering accuracy of the S-Type.
Magazine

Aerospace & Defense Technology: February 2017

2017-02-02
Open Standard Middleware Enables New HPEC Solutions Cooling Your Embedded System What Can Your Open Standard Architecture Handle? Evaluating Key Certification Aspects of Multicore Platforms for Safety Critical Avionics Applications Simulating and Analyzing Flow for an Air-to-Air Refueling System The Ins and Outs of Spaceflight Passive Components and Assemblies Development of High Quality 4H-SiC Thick Epitaxy for Reliable High Power Electronics Using Halogenated Precursors Silicon Based Mid-Infrared SiGeSn Heterostructure Emitters and Detectors Reconfigurable Electronics and Non-Volatile Memory Research Energy-Filtered Tunnel Transistor: A New Device Concept Toward Extremely Low Energy Consumption Electronics
Magazine

AUTOMOTIVE ENGINEERING INTERNATIONAL 2013-10-01

2013-10-01
Chrysler sees the ICE future The three-year, $30 million Multi-fuel Multiair R&D program with the U.S. DOE is nearing completion. Here's what Chrysler Powertrain engineers have learned as they try to achieve a 25% fuel-efficiency gain. Counteracting cyber-attacks As vehicle systems become more complex and interact with more internal and external elements, the potential for outside intrusion and tampering increases for both vehicles and the transportation infrastructure. Kia moves upscale with 2014 Cadenza The all-new premium sedan is the Korean automaker's 'most technologically advanced' vehicle ever on U.S. roadways. 2014 Corvette: 460 hp, 30 mpg, 1 g, $52,000 No other sports car can match the C7's combination of performance, value, and overall efficiency. Chief Engineer Tadge Juechter provides insight on executing a masterpiece.
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