Search Results

Easy to control Designers grab a range of technologies to create controls that are simpler for operators to use. Designing quiet off-highway equipment OEMs and suppliers are using new materials and innovative designs to reduce NVH for both vehicle operators and the environment. Using FEA in off-highway design The process of considering weld redundancy in virtual simulation is a complex way of ensuring that weldment design is robust enough to prevail over accidental weld redundancy that might occur during manufacturing. Efficient and effective leadership Frank O. Klegon, a 30-year SAE member and former product development VP at Chrysler, begins term as chief elective officer of SAE International. Making battlefield targets disappear The use of 'smart' special materials has the potential to radically alter the way military platforms are defended, and used.

The big engine that could With the stringent EPA 2015 regulations on large diesel engines for locomotive, marine, and stationary generator applications, the need for NOx reduction via urea SCR catalyst arises given the proven performance of urea SCR. Monitoring hydraulics Component producers and vehicle service providers offer their views of hydraulic diagnostics as the industry moves toward real-time, intelligent health monitoring, predictive failure software algorithms, and wireless notification. Engine management expands from minute movements to full vehicle Electronic controls grow in complexity as engine designers extend their scope to include hydraulics.

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.

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.

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.

Steel sector aids sustainability Volvo Group partners with SSAB on 'green steel' for off-highway machines and with Ovako for access to fossil-free hydrogen. CV autonomy: Picking the 'low-hanging fruit' Increasingly automated commercial vehicles offer challenges and opportunities in simulation, data management and standardization. Developing EV-specific lubes As electric-vehicle technology accelerates, dedicated e-fluids are necessary to maintain proper levels of drivetrain performance. Editorial Real-world emphasis on electric Mahle, Liebherr develop active pre-chamber for hydrogen ICE ABS ramps up commercial-vehicle battery-pack assembly Navistar updates A26 engine, improves FE by 4% Bosch debuts new CV-specific electric motor and inverter Western Star adds 'weight sensitive' 47X to vocational lineup Hyundai CE launches next-gen electric forklift Q&A Mahle's Laurent Art discusses thermal-management challenges, solutions for battery and fuel-cell electric commercial vehicles.

Material selection for battery enclosures Mass reduction is the main reason BEV makers choose aluminum for battery enclosures, but cost and thermal requirements favor steel and polymer composites. Startup targets medium-duty EVs Atlis Motors purpose-engineers nearly all the vital components for an electric pickup and platform capable of spanning several market segments. High-voltage hybrids FEV engineers evaluate 48V and high-voltage parallel hybrid architectures for Class 6-7 commercial vehicles. Certain setups show more promise than others. Hemphill's mission: Support the innovation ecosystem Schaeffler America CTO Jeff Hemphill brings impressive technical chops and well-honed communication skills to his new role as 2021 SAE International president.

Editorial As Argo taps out, the AV industry resets The Navigator 2022 a mixed bag for the AV sector Volvo's New Sensor Sweet A Luminar Iris lidar in the 2024 EX90 is engineered to enhance both automated driving and safety. Inner Visions Automated-driving and ADAS functionalities continue to influence some of the latest cabin safety and materials trends. The Olfactory Factor in AV Interiors Aryballe Technology's unique sensors-on-a-chip solution aims to end the subjectivity of the human nose while neutralizing vehicle cabin odors. AV Life After Argo AI Every new industry sector goes through a consolidation process where the strongest survive, and so it is with automated and autonomous driving technologies. Robotic ADAS Testing Bridges the Sim Gap ASI's Swarming technology allows collision-avoidance and other tests at high speeds on vehicles that human drivers find hard to match. New Tools & Technologies

Operator station innovations Off-highway engineers work hard to provide comfort, ease of operation, and reliability to users. As an added challenge, they must design for operators who can spend an entire day working hard in their cab. Designing online Major developments in internet-based technologies are profoundly changing the engineering/design process, revolutionizing the way OEMs and suppliers do business, and speeding the industry's time-to-market. FEA simulation of an electrohydraulic system Researchers from the Milwaukee School of Engineering provide an accurate model of a typical magentic actuator Predicting injury in forklift upsets Researchers from the Biomechanics Institute present test results that demonstrate operators can prevent ejection and injury from a forklift if they are lap-belted and have either a winged seat or hip restraint.

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.

Next-generation power Additional benefits for commercial customers may drive hybrid technology adoption. Shake and bake: a recipe for testing Vehicles, components endure much in-lab abuse before they enter the commercial-vehicle market. Fuel for thought The performance and emissions of a stationary single-cylinder diesel engine is evaluated using an ethanol blend with diesel and jet fuels.

Hydrogen possibilities Using hydrogen in an internal-combustion engine application requires not only a custom-engineered combustion concept, but also optimized operation strategies. Nets catch on Engineers have been slow to adopt networks, but that is changing quickly as electronically controlled engines take hold. Hydraulic matters There is much potential for gain for everyone if OEMs and suppliers work together early in terms of hydraulic system design. Asia hot on new cooling technology Not tied as much to aluminum as is the West, china and Russia are moving fast toward widespread use of copper and brass for radiators. Build, test, teview, and improve SAE 100 Future Look; Frank Perna, Chairman and CEo of MSC. Software writes about his experience in vehicle engineering, testing, and management positions.

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.

Electronics invade the cab Joysticks and displays lead the transitions from mechanical links. Developing alternatives According to Ford Power Products, hydrogen-powered engines can be a reality, but while waiting for them to be economical with a developed infrastructure, other alternatives to diesel and gasoline are available. Optimization of structural components Researchers from Dana present a new design methodology to develop structural components using computer-aided engineering tools.

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.

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.

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.

A quiet revolution Optimizing design, while minimizing NVH, in off-highway equipment and systems. Inferential sensing Engineers propose an onboard electronics hardware and software architecture that can deliver condition-based maintenance solutions in a low-cost platform. Lightweight but heavy duty A look at the design, analysis, testing, and application engineering performed to develop a selectively reinforced brake drum made of aluminum metal matrix composite. Shifting gears smoothly Ric Kleine, a 30-year veteran of Cummins Inc. and former SAE Commercial Vehicle VP, seeks continuity over change as he moves into SAE's driver's seat.

What we have here is a desire to communicate Telematic service and equipment providers are racing to gain market share in what's expected to become a solid long-term market. Sizing up accumulators No other feature of a hydraulic hybrid has more effect on the end performance of the powertrain than the accumulator. modeling helps to provide specific guidance with regard to establishing pre-charge pressure. Beating a path to biodiesel Multiple pathways are being pursued to increase biodiesel use, reduce dependence on petroleum, and improve the environment, but the best route is not yet known.

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.