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2020-01-10

2020-01-10

2020-01-10

2020-01-10

2020-01-10
Small Powertrains and Energy Systems Technology Conference differentiate yourself from competitors increase brand awareness showcasing company’s technologies at our exhibit.

2020-01-10
Small Powertrains and Energy Systems Technology Conference differentiate yourself from competitors increase brand awareness showcasing company’s technologies at our exhibit.

2020-01-10

2020-01-10
Small Powertrain and Energy Systems Technology Conference where small engine makers discuss technologies engine design, fuels, lubricants, combustion, new energy sources, environmental impacts, emissions control small engine.

2020-01-10

2020-01-10
Technical Paper

Experimental Acoustic Analysis of a Motorcycle Dissipative Muffler in Presence of Mean Flow

2016-11-08
2016-32-0039
In recent years, the motorcycle muffler design is moving to dissipative silencer architectures. Due to the increased of restrictions on noise emissions, both dissipative and coupled reactive-dissipative mufflers have substituted the most widely used reactive silencers. This led to higher noise efficiency of the muffler and size reduction. A dissipative muffler is composed by a perforated pipe that crosses a cavity volume filled by a fibrous porous material. The acoustic performance of this kind of muffler are strictly dependent on the porosity of the perforated pipe and the flow resistivity characteristic of the porous material. However, while the acoustic performance of a reactive muffler is almost independent from the presence of a mean flow for typical Mach numbers of exhaust gases, in a dissipative muffler the acoustic behaviour is strictly linked to the mass flow rate intensity.
Technical Paper

Improving Fuel Economy of Thermostatic Control for a Series Plugin-Hybrid Electric Vehicle Using Driver Prediction

2016-04-05
2016-01-1248
This study investigates using driver prediction to anticipate energy usage over a 160-meter look-ahead distance for a series, plug-in, hybrid-electric vehicle to improve conventional thermostatic powertrain control. Driver prediction algorithms utilize a hidden Markov model to predict route and a regression tree to predict speed over the route. Anticipated energy consumption is calculated by integrating force vectors over the look-ahead distance using the predicted incline slope and vehicle speed. Thermostatic powertrain control is improved by supplementing energy produced by the series generator with regenerative braking during events where anticipated energy consumption is negative, typically associated with declines or decelerations.
Magazine

Automotive Engineering: March 2020

2020-03-01
Electrifying GM After two decades of hybrid development, General Motors puts its full future-propulsion focus on BEV technology-with vertically integrated development and production. Multimatic's new SimCenter The Novi facility will feature the most advanced VI-grade driving simulator in the U.S., enhancing development of everything from chassis dynamics to autonomous systems. New approaches in thermal management Electric vehicles are driving new technologies in cabin heating, ultra-fast battery charging and secondary-loop heat pumps. Meet the 2020 SAE Prez Veteran Boeing engineer Todd Zarfos brings an open-minded focus to the SAE presidency.
Magazine

Automotive Engineering: April 2020

2020-04-01
The man from ARPA-E Advanced R&D programs directed by Dr. Chris Atkinson are building the energy-efficient mobility future. Executive Insights: BorgWarner VP and CTO Hakan Yilmaz With Delphi Technologies expected to join its portfolio, BorgWarner is focusing on differentiating its product line for emerging propulsion architectures. Sweating the details of C8 development How GM's Corvette engineers tackled challenges in the move to a mid-engine architecture. Mid-engine history of the future Highlighting the many benefits of a century-old vehicle layout whose golden era is with today's performance cars.
Magazine

Autonomous Vehicle Engineering: January 2022

2022-01-01
Editorial Safety, standards crucial to AVs' advance The Navigator Imaging radar is the next big thing Cabins Reimagined Automated driving technologies, electrification, and shifting customer priorities are inspiring the transformation of vehicle cockpit design and materials. Prepping Cities for Vehicle Autonomy Deployment of new V2I technology and upgrades to existing roadway infrastructure can assist AVs and improve safety for all road users. Keeping Pace with In-Vehicle Data Speed Higher speed and bandwidth for in-vehicle networks, switches, and connections that carry data demand new development and testing solutions. Experts from Keysight Technologies explain. Honda Puts AVs to Work With the second generation of its Autonomous Work Vehicle, Honda advances the concept of automated vehicles as jobsite helpers.
Magazine

Automotive Engineering: April 2022

2022-04-01
Airing on the side of innovation Lucid Motors' home-grown innovations are leading the pace in electrification. Top engineers tell how and why they're building a benchmark with the new Air EV. Keeping combustion in the conversation The world needs ICEs to stick around - here's how. Engineering a 'Maverick' hybrid transmission Ford Powertrain engineers marry their new in-house electric machine with the proven HF45 transmission - under aggressive vehicle program timing. Driving electrified powertrain systems design Drive System Design punches beyond its weight class in meeting customer needs for electrified powertrain systems engineering services. DSD's North American chief Jon Brentnall explains.
Magazine

Autonomous Vehicle Engineering: March 2021

2021-03-04
Editorial SPAC attack The Navigator Mapping the way to safe and natural automated driving Motorcycles Enter the ADAS Age The latest models from BMW, Ducati and KTM feature Bosch's new ACC setup, but further advancements will require navigating critical rider-control strategies. On the Way to SVA Aptiv says its Smart Vehicle Architecture central controller is the key to simpler, more compact and higher-performance ADAS and AV systems. New Insistence for Driver Assistance Panelists at SAE International's 2021 Government/Industry Meeting say assisted-driving technology is worthwhile - but effective driver monitoring is crucial. Flash! Lidar's Next Generation Arrives Technology solutions from new players and alliances are poised to drive down cost. Horiba MIRA's Vision for World-Class AV Testing A new autonomous vehicle development center called Assured CAV boasts a lengthy list of assets and capabilities.
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