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SAE Off-Highway Engineering: December 2, 2015

2015-12-02
Improving heavy-duty engine component efficiencies Cylinder deactivation can improve fuel economy by using a reduced number of cylinders that operate at higher loads and thermal efficiency, while other cylinders are turned off, when the engine operates at partial load conditions. A switching roller finger follower is one of the technologies that help make it work. Pumping up hydraulic capabilities Electrohydraulic advances keep coming as distributed electronics flex their muscle. Tracking the trends in commercial vehicle communications Industry insiders at Molex offer what they think the future may hold for heavy-duty components in 24/7 communications systems. ADAS system validation It is crucial that different advanced driver assistance systems functionalities interact seamlessly with existing electronic control unit (ECU) networks.
Magazine

SAE Off-Highway Engineering: February 4, 2015

2015-02-06
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.
Magazine

SAE Off-Highway Engineering: June 3, 2015

2015-06-03
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.
Magazine

SAE Off-Highway Engineering: April 8, 2015

2015-04-08
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.
Magazine

SAE Off-Highway Engineering: October 7, 2015

2015-10-07
HMIs extend beyond the cab Telematics functions are being integrated into multi-function user interfaces. Standards step forward in design of off-highway electronics Functional safety standards are starting to impact many development projects, while the auto industry's AUTOSAR standard is being deployed to help enable software reuse and simplify designs. Leveraging automotive lightweighting techniques to improve off-highway emissions Where systems engineers can gain efficiencies in off-highway equipment is agnostic, they'll take it anywhere, and so they should, but one of the ways, often underestimated, is through the use of strong and lightweight advanced materials. Waste heat recovery for the long haul A WHR system based on an organic Rankine cycle has been developed for a long-haul Iveco Stralis truck.
Magazine

SAE Off-Highway Engineering: August 5, 2015

2015-08-05
Making sense of autonomy Industry offers a range of sensors that will free humans from many tasks while also improving reliability, though devising strategies that meet demanding requirements without breaking the bank is no easy challenge. Life-cycle planning-Design and calibration for ultimate efficiency The ultimate power of Big Data technologies relies on the implementation of new strategies. Unlike a traditional engine calibration process, in which only calibration test data and model simulation data are used, multiple source data introduced into the adaptive engine calibration process contributes to efficiency and cost reduction. The complicated future of off-highway engines Developing an optimum engine is getting tricky now that the European Union has established a Stage V for off-highway engines, and the U.S. has not. What effect will this have on future engine designs?
Magazine

Automotive Engineering: March 4, 2014

2014-03-04
Touch-less control coming to cars Use of proximity and gesture-recognition systems in auto cockpits could rise fifty-fold within a decade. Forming a strong bond Multi-material vehicles are becoming more prevalent as automakers attempt to reduce vehicle weight and boost fuel efficiency. Selecting the proper adhesive is critical when bonding dissimilar materials. SAE 2014 World Congress preview special section: 'Creating New Possibilities' Host company Hyundai and Tier 1 Strategic Partner, Delphi, established "Creating New Possibilities" as the theme for this year's premier engineering event taking place April 8-10 in Detroit's Cobo Center. This special Congress preview section uncovers some of those possibilities, featuring insights from the event's executive leadership; details of a Delphi/Hyundai advanced engine program; highlights from the technical program in the areas of powertrain, materials, testing and simulation, electronics, interiors, and body/chassis; and more.
Magazine

Mobility Engineering: March 2014

2014-02-18
Synergistic opportunities abound The horizontal deployment of technologies and knowledge evident in mass-market personal mobility needs to be scaled up in magnitude and performance for commercial vehicles. Q&A with Dr. V Sumantran The Hinduja Group's Executive Vice Chairman talks about his company's award-winning vehicle and related commercial-vehicle topics. The future of electric and hybrid vehicles in India Technical and political challenges alike have held back the electric and hybrid market, but there are signs of hope.
Magazine

SAE Off-Highway Engineering 2012-09-27

2012-09-27
Polymeric engine bearings for stop-start Gaining momentum on passenger vehicles, hybrid and stop-start technologies are expected to find more application in commercial vehicles. Mahle has developed a proprietary lead-free polymer overlay for bearings that's suitable for this aggressive operating environment.
Magazine

SAE Off-Highway Engineering 2012-10-11

2012-10-11
Digital engineering for Tier 4 With the final phase-in of the U.S. EPA Tier 4 emissions standard set to take effect by 2015, off-highway engine developers are accelerating product introductions. Design challenges remain for manufacturers even after the final phase-in while CAE software providers improve technology.
Magazine

SAE Off-Highway Engineering 2012-08-09

2012-08-09
FEA of light-vehicle cab's hydraulic mount Using finite element analysis on a cab's hydraulic mount can shorten product development time and reduce development costs significantly.
Magazine

SAE Off-Highway Engineering 2012-12-13

2012-12-13
The future of heavy-duty networking Imamoter researchers believe Ethernet can be an excellent candidate to supersede the CAN bus for SAE J1939 powertrain networks applications.
Magazine

SAE Off-Highway Engineering 2012-09-06

2012-09-06
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.
Magazine

SAE Off-Highway Engineering 2012-11-29

2012-11-29
Heavy-duty engine blender Researchers at Southwest Research Institute and Navistar exploring the feasibility of micro-pilot diesel-injection dual-fuel combustion at key part load conditions found it offers ultra-low smoke and NOx emissions while maintaining diesel-comparable fuel consumption and noise levels.
Magazine

SAE Off-Highway Engineering 2012-04-19

2012-04-19
Combating complexity with model-based development System and software life-cycle management processes and tools that encompass all phases of the product, from concept to end of life, are essential to meet today's innovation and quality demands.
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 2012-03-29

2012-03-29
High-performance polymers and biofuel compatibility During the material selection process for engine components such as fuel rails, filter housings, and connectors, engineers need to take into account not only the basic tenets of metal-to-plastic conversion, but also the type of fuel and its impact on the performance of the materials.
Magazine

SAE Off-Highway Engineering 2012-07-05

2012-07-05
After diesel A look at some offshoots-hybrids, HCCI, and alternative fuels-to the ever-popular diesel engine in the off-highway industry. Software gains (hydraulic) power Development processes are being revised as software becomes a centerpiece of electrohydraulic designs. Virtual sensing gets real As emissions regulations get more strict, emissions measurement must get more precise for onboard diagnostics, engine control, and model-based controller design.
Magazine

SAE Off-Highway Engineering 2012-07-26

2012-07-26
Quiet in the cab As NVH gains importance in the quality of off-highway machines' performance and operator comfort, it is essential to understand every aspect of the machine noises and its annoyance effect to the operator's comfort.
Magazine

SAE Off-Highway Engineering 2012-05-03

2012-05-03
Perkins Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Sustainability matters Cummins Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Ready for more Eaton Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Unskew the talent system and build a sustainable future Sauer-Danfoss Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Value-added engineering takes time out of the equation Bosch Rexroth Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Focusing on technology, for sustainability Mentor Graphics Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Knowledge-keep it, don't lose it Dana Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Sustainability driven by technological innovation and global footprint MathWorks Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Moving toward sustainable product development with model-based design TDT Insights into sustainability: Environmental, economic, and/or societal goals for a successful, and long-lasting, off-highway industry. - Aerodynamic design methodology meets commercial challenges in off-highway industry
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