• Executive Viewpoints
      Off-highway industry executives from companies such as BorgWarner, Perkins, Cummins, and Danfoss reflect upon challenges inside, and outside, the industry, and what technologies, innovations, and strategies will need to be implemented to thrive into the long-term future.
    • 16th Annual Product Guide
      Top products from throughout the industry covering technologies such as Powertrain & Energy, Hydraulics, Electronics, and Testing & Simulation.
    • Hydraulics still in control of off-highway needs
      Engineers continue to master electronic controllers and software to help systems manage engine speeds and boost efficiency, to the ultimate benefit of both OEMs and end-users.
    • Off-highway calibration challenges-big and complex
      As the final set of Tier 4 regulations kick in for engines greater than 750 hp (560 kW), calibration efforts must contend with complex engine and aftertreatment systems. Engine manufacturers and service providers deal with this complexity, but does it need to be so?
    • DEF delivery modelling for SCR systems
      Researchers characterize a 0-D model of a urea delivery module, oriented to model-based control and to the simulation of the system response to fault injections finalized to diagnosis validation.
    • Development trends for heavy engines
      Downsizing engine displacement, new materials, friction reduction, and advanced boosting and fuel-injection technologies have demonstrated potential in light-duty vehicles, and implementation is under way. FEV experts provide an outlook of how these technologies can improve the base engine for commercial applications with regard to future emissions and fuel-efficiency requirements.
    • Rotary SI/CI combustion engines: A thing of the future?
      The internal combustion engine enjoys widespread use as an inexpensive and reliable power conversion system. While piston engines date back 150 years, various alternative engine architectures and cycles have been considered.
    • Aftertreatment comes with challenging diagnosis
      Diagnosing engine and aftertreatment systems is forcing design teams to look at new ways to diagnose problems over long vehicle lifetimes.
    • Taking on NVH reduction techniques
      A look at the enhanced durability benefits obtained by changing the polymer composition, manufacturing methods, and design optimization of a powertrain mount for an off-highway vehicle.
    • Making virtual vehicle design a reality
      A new virtual design approach for commercial vehicle concepts allows for purposeful design and integration of new concepts and technologies on the component level in an existing product portfolio, while not neglecting the need for standardization and modularity.
    • 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.
    • QT steels make an impact
      The use of quenchd and tempered steels for dumper bodies reduces weight and fuel consumption while increasing payload capacity and wear life.
    • Putting lightweighting to the test
      Material laws and orientation information are coupled in a single finite element analysis to predict the performance of the hybrid composite beam under a dynamic three point bending load.
    • Screens, cameras provide new look in cabs
      Video inputs are another option showing up on displays that increasingly offer touch control.
    • Big performance in small packages
      By regulating light-duty engine variable speed fans based on heat rejection demands and ambient temperature, consistent power savings over the entire operating spectrum can be achieved.
    • Growth in telematics capabilities brings more benefits to more users
      Broader coverage, more features highlight the potential for increased connectivity and communication from the field
    • Off-highway engines advance beyond Tier 4
      With Tier 4 Final/Stage IV needs met, engine OEMs direct their focus and competitive energies toward optimizing competitive solutions. At the same time, they need to keep a weather eye out for future regulations, which many expect.
    • Autonomous vehicle challenges span many fields
      Many of the challenges faced by military and commercial design teams are similar.
    • Racket busters
      With a quiet cab at the top of many tractor buyers' wish lists, agricultural equipment manufacturers are pursuing every opportunity possible to shed decibels.
    • Watching for ways to stand above the crowd
      Sensors monitor a broad range of parameters to help powertrain design teams add features and improve performance.
    • Executive Viewpoints
      Off-highway industry executives write about some of the challenges and trends facing the industry over the next 20 years, and the innovation that will be required to stay competitive and sustainable.
    • Annual product guide
      A product roundup showcasing the newest and most innovative supplier technologies in a variety of areas such as Powertrain & Energy, Electronics, Hydraulics, Materials, Testing & Simulation, Body and Chassis, and Interiors.
    • Making sense of hybrids
      Developers focus on applications that boost productivity while they strive to improve the efficiency of alternative power sources.
    • What's New at ConExpo/IFPE
      More new products and technologies that companies plan to showcase at this year's ConExpo-Con/Agg, which is co-located with the IFPE fluid-power event in Las Vegas from March 4-8, are previewed.
    • Gearshift actuator dynamics in a dual clutch transmission
      The emergence of tougher environmental and fuel efficient legislations have triggered exploration and advance toward new and better vehicle transmission technologies.
    • Software makes solid impact
      Programs are helping hydraulic systems do more while reducing operator workloads.
    • Damping out booming noise
      NVH improvement techniques are gaining traction with the goal to improve the quality perception of off-highway equipment performance and operator comfort.
    • What's New at ConExpo/IFPE
      A preview of some of the new products and technologies that companies plan to showcase at this year's ConExpo-Con/Agg, which is co-located with the IFPE fluid-power event in Las Vegas from March 4-8.
    • Injection strategies for improving emissions characteristics
      Premixed charge compression ignition reduces NOx and soot emissions, but requires the optimization of the injection timing and pressure, fuel mass in pilot injection, and EG R rate.
    • Systems that talk together, are efficient together
      Design teams take a holistic view, linking engines, transmissions, hydraulics, and aftertreatment systems to boost efficiency and performance.
    • Managing the deluge of data
      The model-based development (MBD) process has been a key enabler of technical advancement in the transportation industry; however, the MBD process leads to the generation of large volumes of data artifacts and work products. To maintain efficiency while continuously improving the quality of products, it is necessary to be able to manage this data in an efficient manner.
    • A vision for SAE's future
      Longtime GM engineering executive and STEM education supporter Daniel M. Hancock brings a focused approach to his term as SAE International President.
    • Tighter communications help OEMs meet tighter regulations
      Closer links between powertrains and hydraulic systems cut fuel usage and emissions while improving efficiency.
    • Achieving efficiency via virtual validation
      Model-based design and V-Cycle-based development processes address the need for managing complexity, and to some extent, efficiency in product development.
    • 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.
    • Heavy-duty composite brake crack prediction
      Engineers used both analytical and dynamometer data to determine the damage tolerance of a selectively reinforced aluminum MMC brake drum, which provided some answers but left a lot of questions.
    • 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.
    • Simulating off-highway hybrids
      With customers squeezed by fuel costs, off-highway OEMs are showing some interest in developing hybrid equipment. CAE simulation tools are needed because of lack of experience with such devices. Their functional complexity requires control system simulation throughout their lives.
    • A hose is a hose is a hose
      Researchers develop a method for the precise mounting of a hydraulic hose model.
    • Integrity sensing for safety
      Researchers from Purdue developed a capacitance-based method for monitoring the integrity of tires, hoses, and other polymeric products during manufacturing and throughout the useful product life.