| October 2009 |
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.
Autonomous vehicles go off-highway
Advances in sensors, CPUs, and software help in the drive to eliminate drivers.
Power and precision
Hydraulic motors and actuators evolve along two paths, both relying on advanced controls.
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| August 2009 |
Executive Viewpoints-Vehicle Development Insights from Industry: Off-Highway 2020 and Beyond
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| June 2009 |
The diesel engine diet
Researchers correlate engine performance and durability with the properties of alternative fuels that consist of vegetable oils and animal fats.
Looking at a safer future
Software, other sensors will augment cameras as safety's role in the off-highway industry takes an upward spiral.
Plastics expand their range
From high-speed train exterior panels to powertrain components, plastics and composite materials are finding their way into more off-highway applications.
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| April 2009 |
Fixing the cracks in the system
Nondestructive testing techniques evolve to accommodate new materials and digital capabilities.
Looking to the future
LCDs, touch-screen technology transform the look and feel of cabs.
Advanced combustion near and far
Advanced combustion research promises long-term improvements in efficiencies while reducing or eliminating the need for aftertreatment.
What's New at SAE 2009
SOHE previews some of the off-highway applicable products, services, and technologies to be displayed at the SAE 2009 World Congress occurring April 20-23 at Cobo Center in Detroit.
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| March 2009 |
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.
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| January/February 2009 |
Whistle down the wire
Collaboration between OEMs and suppliers leads to new advances, and challenges, for electrohydraulic system control.
Chipping away at drivetrain challenges
Chips, sensors, controllers, software all combine to help engineers improve efficiency.
Engineering disciplines unite
Design tools help disparate groups provide input throughout the development process.
Innovative thinking 101
West Virginia University professor Dr. James E. Smith issues a call for innovation as one of the central themes of his term as SAE's 2009 President.
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| November/December 2008 |
Electrohydraulic engineers embrace integration
Software improvements help both engineers and operators as architectures evolve.
Indestructible from the start
OEMs and suppliers are investing in testing equipment, facilities, and software to ensure proper performance of components prior to being placed in the field.
To 2010 and beyond
Engineers working on emissions-control systems for heavy-duty engines already are preparing for ever more stringent regulations later next decade.
Top Technologies of 2008
The editors look back at some of the most significant technological innovations during the past year according to readers.
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| October 2008 |
Tying it all together
Networks link control modules to bring more features and functions to the job site.
Collaboration tools spread a wide net
PLM suppliers are offering new tools that aid collaboration, expanding on core offerings in PDM, CAD, and CAE.
The drive toward a hybrid transmission
In-wheel hydraulic motors, hydraulic transformers, and a common pressure rail with accumulators put new meaning in the word drivetrain.
A deep dive into metallurgical failure
Even with the best engineering processes and quality planning, deviations can occur with the incoming material, things can go wrong during the manufacturing process, and service conditions can be different than expected.
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| September 2008 |
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.
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| August 2008 |
Product Guide
SAE Off-Highway Engineering's 9th Annual Product Guide showcases new and innovative supplier products.
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| May/June 2008 |
Communication helps make sense of problems
Sensors that link engines and hydraulics to the outside world provide data that can be used to analyze performance and the cause of failures.
Characteristics of multiple injections
A look at the effects that pilot-injection fuel quantity and timing have on light-duty engine emissions.
Hybrid innovations for hydraulic braking
Exploring new technologies for recovering kinetic energy from braking.
On the cover
Doosan Infracore's new DX255 crawler excavator features an electronics package that serves to harmonize the operation of the hydraulics and the engine based on power demand and working conditions.
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| April 2008 |
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.
What's new at SAE 2008
A preview of some of the off-highway applicable products, services, and technologies showcased at the SAE 2008 World Congress.
On the cover
Modularity brought safety and shortened time to market for International Truck and Engine, which entered the military market two years ago with a vehicle based on its 7000 series heavy-duty truck.
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| March 2008 |
In search of the perfect burn
The simultaneous downward 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.'
What's New at CONEXPO 2008
SAE Off-Highway Engineering previews some of the products, services, and technologies to be displayed at CONEXPO/IFPE 2008, scheduled for March 11-15 in Las Vegas, NV.
The datalinked vehicle
In the fields and on the job site with GPS.
On the cover
Pilot controls are now standard for all four new Case 400 Series 3 machines-the 420CT, 440CT, 445CT, and 450CT-as is a new cab with increased headroom.
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| January/February 2008 |
No stopping global design
Global teams ride down the cyber highway.
Engines play clean in the fight 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.
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.
Ryan's 'Research' put to good use
The Southwest Research Institute engineer assumes SAE President duties for 2008.
On the cover
Kobelco's SK260LC Acera Mark 8 hydraulic excavator is powered by a six-cylinder Iveco engine and features four power modes that match power to specific work operations.
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| December 2007 |
Economies of (drivetrain) scale
Emissions challenges continue, but engine and transmission technology is advancing solutions and improving vehicle systems integration.
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 has 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.
Top products of the year
The editors highlight some of the top offerings from the industry's component and systems suppliers.
On the cover
Visualization of an Exa PowerFLOW simulation on AGCO's TerraGator. Centerline plane slice is colored by velocity magnitude demonstrating cooling airflow entering the engine compartment.
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| October 2007 |
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.
What's New at ComVEC 2007
A preview of some of the products, services, and technologies on display at the fourth-annual SAE Commercial Vehicle Engineering Congress & Exhibition, taking place October 30 through November 1 at Donald E. Stephens Convention Center outside of Chicago.
On the cover
Deere upgraded the operator station and cab of the new 9030 tractors, incorporating lower sound levels and higher visibilities for field activities.
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| September 2007 |
Digging with precision
Electronic technologies continue to transform the off-highway environment, all the way down to the components used to create electrohydraulic systems, including pumps, valves, and new additions, such as house controllers and sensors.
Speeding up design
Software automates more tasks, handles challenges.
Together for a change
On- and off-highway commercial vehicle industries converge at fourth-annual Commercial Vehicle Engineering Congress & Exhibition.
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| August 2007 |
Sourcing Guide
A comprehensive industry supplier index containing detailed contact information on more than 1300 companies that supply industry manufacturers.
Supplier Index
Provides the address, phone, fax, e-mail, Web site, and general product categories for each company.
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| June 2007 |
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.
On the cover
Mercedes-Benz' Unimog for heavy-duty off-highway applications is available in 3250- and 3850-mm (128- and 152-in) wheelbase variants.
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| April 2007 |
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.
What's new at SAE 2007
A preview of some of the off-highway applicable products, services, and technologies showcased at the SAE 2007 World Congress.
What's new at SAE 2007
A preview of some of the off-highway applicable products, services, and technologies showcased at the SAE 2007 World Congress.
On the cover
The EW160 from Volvo Construction Equipment has an anti-stall feature designed into the engine-management system to balance maximum available power to hydraulic output.
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| March 2007 |
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.
On the cover
The recently updated Hitachi EH750 is powered by a six-cylinder Detroit Diesel engine and features a suspension system with independent trailing arms for each front wheel.
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| February 2007 |
Designs on electronics
On-chip memories and new architectures change control functions.
Seeing green
Environmental and cost benefits are driving the adoption of bio-based and other 'eco' materials.
Closing the loop on marine propulsion design
Researchers develop tools for rapid prototyping and analysis of distributed safety-critical systems.
Promoting from within
After serving a three-year term as Vice President-Automotive, Rich Schaum, Chrysler's former product development chief, becomes the new face of SAE International.
On the cover
The Terex TX760B backhoe, powered by a 4.4-L 86-hp (64-kW) Perkins engine, features a front counterweight for improved fore and aft stability.
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