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MOMENTUM: MARCH 2020

2020-03-01
Making sense on sensors AutoDrive Challenge team from North Carolina A&T State University gets the most out of its few sensors. Victory at last The first Formula SAE win of Polytechnique Montreal: why keeping it simple and being prepared was the key. Keeping it light Gram by gram, students at Ningxia University carve weight off their SAE Aero Design East plane to win the 2019 competition.
Magazine

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 2012-11-08

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 2013-06-13

2013-06-13
National Instruments Keeping pace with increasingly intelligent machines Molex Autonomous equipment positioned to be next disruptive technology Sauer-Danfoss Speed wins IAV Engineering in the virtual world Mentor Graphics What will save us from electrical system design complexity? Perkins Designing for diversity TTControl Intelligent controls and connectivity Federal-Mogul Technology strategies for the future Dana Innovation that addresses global megatrends dSPACE Can you imagine your life without challenges? Tenneco Technology meets regulatory challenges Southco Shifts in design energy Bosch Rexroth Manufacturing and logistical excellence MathWorks Continuous improvement to meet new challenges
Magazine

SAE Off-Highway Engineering 2013-09-05

2013-09-05
Operators see bright screens in their future HMIs borrow from tablets, phones to help operators perform a broad range of tasks Small engine landscape Kubota engineers developed new small-displacement engines that adopt a common-rail system while optimizing the combustion system and injection characteristics. Sensitive to safety A growing number of digital sensors are among the tools being used to make sure failures are rare and injuries are even more infrequent.
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

Autonomous Vehicle Engineering: May 2021

2021-05-01
Editorial Making Safety Standard The Navigator Sensor Monoculture is a Terrible Idea 3D-printed Radar Rises Toward Production Lunewave's unique Luneburg-lens technology aims to simplify vehicle radar arrays - and deliver better ADAS and AV performance. Accelerating Automotive Radar NXP's new, fifth-generation chipsets unleash 16-nm FinFet technology to the ADAS and AV markets. Autonomy's Computing Backbone Cloud-computing networks are speeding AV development and preparing to manage tomorrow's data-reliant AV fleets. Get in Line Evolving truck-platooning techniques are paving unique paths to high-level commercial vehicle autonomy. Ford in 'No-hands' Land BlueCruise hands-free driver-assist is available later this year for the Mustang Mach-E and F-150 pickup. ADAS-equipped Trucks Save Bucks Bosch research finds one specific driver-assistance feature may reduce costs associated with property damage by up to 35% for Class 7 and 8 trucks.
Magazine

Autonomous Vehicle Engineering: April 2023

2023-04-13
Editorial Threats to automation's reputation The Navigator Increasing EV range through increased compute efficiency The Road to Zero Prototypes ADAS and HMI development are important applications for new simulation solutions. Lidar vs. Everybody in the Onboard Sensor Race Future vehicle systems will feature a reduced sensor array, but still will need a technology combination for safe performance. Toyota's Advanced R&D Puts Humans First Creating technologies that amplify human experience and endeavor to help solve society's biggest challenges is the mission of the Toyota Research Institute. Tesla's FSD Recall Impacts AV Industry The automaker's recall of its Full Self Driving Beta leaves a significant dent in automated driving's credibility. Mercedes Mimics Microsoft Mercedes-Benz developed an in-house operating system to join an all-new vehicle platform architecture to enhance automated driving, OTA updates and other features. New Tools & Technologies
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 2005-12-01

2005-12-01
Delivering simulation benefits Product-development software tools are being put to good use in many off-highway industry segments. Movingalong with stationary power Performance, reliability, and cleanliness are just a few of the golden rules for all engines, whether they are propelling a tractor or powering a barn. Frames adapt to changing environments Heavy-equipment frames do not often get a lot of attention from customers, due mainly to the fact that they get plenty of attention during the design cycle. 2005 technology in review A look back at some of the most significant technological innovations in the news during the past year, as deemed by readers and editors.
Magazine

SAE Off-Highway Engineering 2007-12-01

2007-12-01
Economies of (drivetrain) scale Emissions challenges continue, but engine and transmission technology is advancing solutions and improving vehicle systems intergration. Searching for real-world responses Prototype testing is constantly changing as electronic technologies help transform equipment; design processes adjust as digital development evolves. Hydraulic brakes on one hand, air brakes on the other Building a better brake system had continued to challenge engineers for more than a century, as a changing world has demanded correspondingly advanced brake technology. Top technologies of 2007 A look back at some of the most significant technological innovations during the past year.
Magazine

SAE Off-Highway Engineering 2007-04-01

2007-04-01
Help from above Cell towers and satellites enable people to keep equipment running. Cleaner and quieter diesels To meet tightening regulations, engineers are tasked with adding more and more components and systems to take away more and more emissions. Connecting sensors Suppliers and road construction OEMs have teamed to develop an application profile for sensor interfaces.
Magazine

SAE Off-Highway Engineering 2008-04-01

2008-04-01
Engineering a cleaner off-highway world As engine manufacturers gear up to meet the next round of stringent emissions standards, equipment manufacturers are reviewing a number of design possibilities. Plugging in for safety Electronics dig deep to help protect operators and equipment. Leveraging the best of both worlds Combustion and aftertreatment technologies help engine manufacturers balance performance with emissions reduction.
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 2002-04-01

2002-04-01
Changing demands reshape hydraulic components In a world of shrinking margins, fierce competition, and increasing regulations, equipment owners want nothing less than stellar performance from their equipment. Contact stress in valvetrains Engineers from Mahle compared FEA and Hertzian equations for the calculation of contact stress in a roller-follower valvetrain system. High-fidelity agricultural tires Researchers from Goodyear and John Deere developed finite element tire models capable of generating quasi-static spindle forces and moments for prescribed displacements over irregular terrain. Ag-equipment development challenges An engineer in the field discusses the need to tread carefully during the agricultural product-development process.
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 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 2007-06-01

2007-06-01
Electrifying the future Hybrid-electric systems development is heating up in the truck and off-highway equipment industries as OEMs plan to satisfy a wide variety of customers. Shrinking world extends design teams Whether the world is becoming flat or just shrinking, its change is posing a challenge for engineers who have to design bigger products with flat manpower budgets. Cutting costs with COTS Streamlining design and manufacturing processes for accelerated wire harness development for off-highway equipment.
Magazine

SAE Off-Highway Engineering 2005-06-01

2005-06-01
Testing in the field Hardened data-acquistion modules benefit companies conducting off-highway testing in harsh environments. Continuing to advance technology With close to $1 billion spent on R & D in 2004 alone, Caterpillar is taking a lead role in the push to move the commercial-vehicle industry forward. Testing trends This special section highlights some of the latest equipment used by engineers to evaluate new technologies. The forgotten compact engine Though heavy-duty engines have gotten most of the industry attention lately, smaller engines are out there working hard, with seemingly little respect. Productivity drives future agricultural technologies SAE 100 Future Look: Despite the tremendous rate of change in the agricultural equipment industry, one common theme has led the technological advances in agricultural equipment.
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