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SAE Vehicle Electrification: August 12, 2014

2014-08-12
A new Formula for racing The new Formula E series' electric racecars are intended to pioneer new technology for broader use in production, encouraging fans to think differently about the technologies they use. Production of satellite with first all-electric propulsion system advances Electric propulsion has been limited so far to small movements of the satellites once it is in its geostationary orbit. The Boeing 702SP innovation is its use of electric propulsion to raise the satellite from its launch-vehicle drop-off point to geostationary orbit. Using CAE to assess whining noise of electric powertrains To develop an electric powertrain with a minimum noise level and minimized whining it is necessary to have accurate CAE simulation and precise criteria to assess whining noise.
Magazine

SAE Vehicle Electrification 2012-10-25

2012-10-25
When fuel cells fly Emerging hydrogen and fuel-cell-based technologies are being developed for the future replacement of onboard electrical systems in more-electric or all-electric aircraft. Motor controls spin forward Improved power handling and software advances make electrified powertrains more competitive. Multiple controllers adds to EV complexity Model-based design has revolutionized the way products are developed, with design shifting from parts to the whole.
Magazine

SAE Truck & Off-Highway Engineering: October 2019

2019-10-03
On the verge of the Digital Age Increasingly connected electrohydraulic systems and machine controls allow the high degree of controllability that's essential for automated operations. Miserly power systems Engineers push engine, transmission technologies to turn off fuel usage. All options on the table Powertrain developers who spoke at SAE COMVEC are leaving no stone unturned in their quest to trim emissions. Cab air quality: A critical component of operator comfort Focus on defining cab air quality, measuring it, and designing the needed performance into cabin designs and HVAC systems is intensifying. Expanding fast charging faster Tritium works to accelerate installation of DC fast-charging infrastructure to keep up with growing demand for commercial EVs.
Magazine

SAE Truck & Off-Highway Engineering: June 2018

2018-06-01
Need: E/E architecture upgrade Bosch VP of Commercial Vehicle and Off-Road believes the business cases for electrification and automation, especially in trucking, are extremely promising. Diesel isn't dead Cofounder of Convergent Science defends the internal-combustion engine, fully expecting already-sophisticated designs to run even cleaner and more efficiently in the future. Fueling up fuel cells The new VP of Hydrogen and Fuel Cell Technologies at Nikola shares his vision for the alt-fuel technology in trucking, along with the standards necessary for implementation. From gaming to engineering Theorem sees augmented, mixed and virtual reality transforming the way heavy vehicles are engineered and manufactured. Adding digital intelligence, connectivity to actuators Thomson believes truck and off-highway vehicles will increasingly integrate 'smart' actuators to enhance communication, control and performance.
Magazine

SAE Truck & Off-Highway Engineering: December 2023

2023-12-14
Perkins bets big on smaller engine The new 2600 Series 13-liter engine for off-highway machines will do more with less thanks to variable geometry turbocharging. BorgWarner targets more- sustainable e-motors System optimization and lifecycle analysis are key to taking heavy rare earths out of next-gen motors for commercial EVs. Enhancing digital platforms with CT data analysis TE Connectivity gains critical insights using Volume Graphics software throughout design, simulation and manufacturing.
Magazine

SAE Truck & Off-Highway Engineering: August 2020

2020-08-06
Big future for e-axles, advanced motors Top transmission engineers claim driveline electrification will transform everything from all-wheel drive to Class 8 tractor-trailers. Big data's benefits keep a-comin' Gigabytes of data are being collected and increasingly mined to improve field operations, maintenance and even vehicle design. Transformative times Despite a challenging climate, technology development progresses - as does the sharing of innovative ideas - virtually. Editorial Zeroing in on zero emissions Softing envisions secure, reliable predictive maintenance Reconstructing accidents in the ADAS age Paving the way to improved truck fuel efficiency Nikola looks to accelerate production, hydrogen infrastructure Mecalac designs unique-pivoting swing loader Q&A' Horiba's Joshua Israel discusses complex regulatory landscape's impact on commercial-vehicle development and shift to electrification.
Magazine

SAE Truck & Off-Highway Engineering: August 2018

2018-08-02
Heavy-duty engine design Increasing regulations and market demands call for cleaner, more durable and fuel-efficient engines. Developers rely on CAE simulation, enhanced test methods and 3D printing to keep up. Switching to comfort mode Switches, knobs and touch panels evolve to reduce operator fatigue. Big on prognostics Smart data-analyzing procedures that support predictive maintenance will help to significantly increase the uptime of heavy-duty vehicles. The "Evolution of Big Data" symposium at SAE COMVEC 2018 addresses such critical topics. Starship road trip Optimized aerodynamics and production-ready technologies propel Shell's Class 8 concept to a 248% freight-ton-efficiency improvement.
Magazine

SAE Truck & Off-Highway Engineering: August 2017

2017-08-03
Collaborating on diesel emission control Stringent fuel-efficiency and criteria-pollutant standards call for new combustion strategies. The SwRI-led Advanced Combustion Catalyst and Aftertreatment Technologies consortium reinvents existing technologies and experiments with new catalysts to meet standards. More intelligence equals more efficiency, enhanced functionality Advanced systems require renewed focus on architectures, processors, sensors and networks. Appraising the potential for platooning in the U.S. Researchers from the National Renewable Energy Laboratory perform statistical analysis based on a large collection of real-world U.S. truck usage data to estimate the fraction of total miles that are technically suitable for platooning. Connected commercial vehicles bring cybersecurity to the fore Connectivity, automation and electrification will largely drive vehicle developments in the coming years, according to experts presenting at the revamped SAE COMVEC 17.
Magazine

SAE Truck & Off-Highway Engineering: April 2021

2021-04-01
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.
Magazine

SAE Truck & Off-Highway Engineering: April 2017

2017-04-06
Connectivity continues its advance More OEMs and Tier 1 suppliers are focusing on embedded telematic systems, hoping to displace aftermarket hardware. Tailoring fuel injection to control NOx The next big step to help heavy-duty diesel engines meet stricter emissions regulations involves adapting the fuel-injection system to the combustion needs. Active on safety Crash-avoidance technologies are vital "building blocks" to automate commercial vehicles, implement truck platooning and ultimately achieve zero accidents. Engineering with simulation and data Companies are discovering new simulation techniques, especially optimization; the next step is to combine simulation with sensor data and predictive analytics to create even more robust off-highway equipment.
Magazine

SAE Powertrain & Energy 2012-01-25

2012-01-25
Alternative fuels heat up This is a rich time for combustion researchers. The need for better fuel efficiency and improved emissions has never been greater. New software model to help engine makers meet diesel soot standards Simulation enables engineers to predict particulate formation early in the design process.
Magazine

SAE Off-Highway Engineering: September 4, 2014

2014-09-04
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.
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: May 8, 2014

2014-05-08
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.
Magazine

SAE Off-Highway Engineering: June 3, 2016

2016-06-03
Executive viewpoints Industry leaders offer their insights on the state of the heavy-duty on- and off-highway industries in this annual series of opinion pieces. The executives share their views on the most pressing technologies and trends shaping their business and the industry moving forward. 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: 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: July 10, 2014

2014-07-10
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.
Magazine

SAE Off-Highway Engineering: February 6, 2014

2014-02-06
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.
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: 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?
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