Refine Your Search

Topic

Search Results

Magazine

SAE Off-Highway Engineering 2000-04-01

2000-04-01
Simulating cab noise and vibration Researchers at kubota and Doshisha University have established a prediction method for the engine-idling state using statistical energy analysis. Manufacturing cost estimating Caterpillar's ACT Group uses Micro Estimating Systems' computer-aided estimating program to increase efficiency and decrease operating costs in powder-metal part manufacturing. In search of greener pastures Agricultural OEMs are looking at the total life cycle to develop more environmentally conscious products and processes. Emissions and lubrication More stringent diesel emissions legislation is placing an increased burden on engine lubricant in the form of soot loading.
Magazine

SAE Off-Highway Engineering 2000-10-01

2000-10-01
Designing a high-performance electrohydraulic actuator Researchers at the University of Saskatchewan and the University of Toronto adopted a new design strategy for development of a new high-performance acutation system. Off-highway, online The Big Three automakers made big news in February by announcing the formation of a single Internet portal for conducting business-to-business e-commerce. Although no such B2B megasite yet exists for the off-highway industry, a number of separate Internet sites offer similar services to the agricultural and construction segments. Off-highway transient driving cycle Southwest Research Institute and the EPA teamed to determine the necessary emissions tests and certification cycles needed for off-highway engines. Benchmarks in tractor development Norm Swinford discussed the evolution of tractor technology at the 2000 SAE International Off-Highway & Powerplant Congress & Exposition in September.
Magazine

SAE Off-Highway Engineering 2009-10-01

2009-10-01
Heavy-duty issues Top industry insiders provide their perspectives on critical issues such as sustainability, workforce development, and future growth at this year's Commercial Vehicle Engineering Congress and Exhibition. Autonomouse vehicles go off-highway Advances in sensors, CPUs, and software help in the druve to eliminate drivers. Power and precision Hydraulic motors and actuators evolve along two paths, both relying on advanced controls.
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 2007-10-01

2007-10-01
Taking control Improved displays and software give operators better insight into hydraulic systems. Making sense for electronic engines Sensors help engines boost performance while meeting emissions requirements.
Magazine

SAE Off-Highway Engineering 2004-09-01

2004-09-01
Digital revolution changing hydraulics Electrohydraulics trim costs while improving safety and efficiency. Heavy-duty testing Targeting off-highway and other commercial vehicle engine makers, Ricardo has expanded its Chicago Technical Center to help them comply with upcoming emissions regulations. An integrating experience The importance of systems integration will be an overarching theme at a new SAE conference, COMVEC, for the on-and off-highway commercial vehicle industries. Off-highway gets cooler and greener An environmentally benign A/C refrigerant rooftop unit is ready for testing in logging and mining equipment in Australia. Mining for better seating The mining site is a particularly challenging environment for vehicles, which combined with the intense work schedule of most mining operations, leads to a serious need for comfort and convenience for equipment operators.
Magazine

SAE Off-Highway Engineering 2000-09-01

2000-09-01
Simulating air-conditioning performance A computer program developed by Modine Climate Systems and Modelogics helps determine and optimize air-conditioning system performance. Reduced mass haul-truck design concepts Liebherr Mining trucks adopted a reduced structural mass approach to convert unladen weight directly into payload, while simultaneously incorporating state-of-the-art driveline technology. Optimizing a tractor frame for improved cabin NVH To address an aging agricultural workforce and modern ergonomic guidelines, researchers at Doshisha University and Kubota modeled medium- and large-sized agricultural tractors to reduce vibration and noise and increase comfort. Applying 3d-CAD to turbocharger development Ishkawajima-Harima Heavy Industries has developed a 3d-CAD system for turbochargers. satisfying requirements for digital mockup development.
Magazine

SAE Off-Highway Engineering 2006-09-01

2006-09-01
Integration helps fuel push for conservation As rising fuel prices and looming environmental regulations bring fuel economy to the fore, hydraulic system developers are pitching in to improve efficiency and help conserve precious resources. Simulating hydraulic valve pressure drop CFD software is being used more and more frequently during the design of off-highway systems and components. 2006 Commercial Vehicle Congress Preview International Truck and Engine executives head the charge for "positive industry change" at SAE's third Congress for the on-and off-highway communities. Position sensing in machine controls As performance requirements for off-highway equipment become more demanding, the need for greater control of motion and power grows as well.
Magazine

SAE Off-Highway Engineering 2008-09-01

2008-09-01
Shrinking hydraulics The push to conserve fuel and reduce emissions is prompting major changes in system design. Aftertreatment temperature control Regeneration of a DPF burns off soot, but also raises exhaust gas temperature. Speed thrills: doing more tests in less time Quicker data gathering, simulation keep quality high despite time crunch. Green engineering The quest to alleviate environmental and efficiency pressures turns up 'small' material solutions with big benefits. A global forum Cummins executives lay the groundwork for a lively and informative discussion at this year's Commercial Vehicle Engineering Congress & Exhibition.
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 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 2008-02-01

2008-02-01
No stopping global design Global teams ride down the cyber highway. Engines play clean in the flight to meet increasing regulations Sensors, faster CPUs help reduce emissions while maintaining performance. Hydraulics have the power to control The latest generation of hydraulic systems provides an effective alternative to other forms of motion control. A home away from home Technology advances help to make equipment operators more comfortable- and more and more productive- in hte field, in the pit, and on the job site. Ryan's 'Research' put to good use The Southwest Research Institute engineer assumes SAE President duties for 2008. Biofuel effects As the off-highway industry in Europe prepares for the introduction of biofuel, specialists are attempting to anticipate potential mechanical and chemical problems it may bring to powertrain systems and component operation- and prepare the answers.
Magazine

SAE Off-Highway Engineering 2003-02-01

2003-02-01
The evolution of diesel emissions control The development of clean diesel has been a saga of evolution punctuated by occasional milestones. Heavy-duty engine emissions tests Ricardo recently commissioned from Emprise a new full-dilution emissions measurement system at its Chicago Technical Center. Air entrainment in hydraulic systems Researchers from Opus Systems and Hosei University designed a device to remove bubbles or foam in working oils for improved performance. Turbocompounding revisited Scania has introduced a new in-line six-cylinder engine that uses technology developed 20 years ago to meet tomorrow's emissions requirements.
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 2000-02-01

2000-02-01
Hydrostatic drives in heavy equipment The benfits of using modern hydrostatic components in conjunction with shiftable gearboxes and computer controls include a large control range, precise control of traction effort and speed, and high efficiency. Dynamic simulation of tracked vehicles Researchers from Purdue University, the Federal University of Vicosa, and Caterpillar, have developed a soil/track interface simulation program to model mechanical and hydraulic powertrains commonly found in tracked vehicles.
Magazine

SAE Off-Highway Engineering 2007-03-01

2007-03-01
Putting tractors to the test Southwest Research Institute offers manufacturers a ready-made R&D laboratory and the test programs to push their machines to the limit. Leave the driving to us Military programs explore autonomy to lighten operator workloads. Easy on the operator Off-highway OEMs and suppliers want to make life as easy-and productive- as possible for the people running the equipment. Tough testing for tomorrow's demands The off-highway industry is moving toward a new era of legislation and environmental pressures, making test centers increasingly important.
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 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 2009-03-01

2009-03-01
Synchronized driving Tight linkage between engine and transmission increases efficiency. Sensing a change Hydraulic engineers are being pressured to design systems that perform more tasks while taking less space. Steel still king Advanced steels and processes offer better performance and lower cost, particularly in powertrain applications.
X