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Viewing 121 to 150 of 7453
2017-11-15
Event
2017-11-15
Event
This presentation will cover the status, outlook, and challenges for vehicle weight reduction. This will cover topics from weight trends in developed markets, as well as regulatory effects. These topics will then be evaluated for an understanding of what transmissions will be subjected to for sizing and capability, as well the focus on transmissions themselves for weight reduction.
2017-11-15
Event
In the past, vehicle hybridization often resulted in electrified powertrains with increased mass and size. This was accepted by the vehicle system because overall reduction in CO2 emissions and fuel consumption could still be achieved. With the increasing battery size in BEV/PHEV and the increasing demand for low cost electrification solution with minimum modification to base vehicle today, transmission engineers are challenged to deliver more package efficient hybrid transmission system. This presentation will discuss the possible solutions including hybrid system architecture, 48V system, and electric motor component technology for the weight reduction and its challenges.
2017-11-15
Event
: The automotive industry continues to drive better fuel economy requirements for axles, transmissions, and wheel ends to meet aggressive 2025 U.S. CAFE standards, and their equivalent global regulations. As North America looks to newer future standards, and manufacturers in Europe and Asia migrate to a more globalized WLTP cycle, bearing manufacturers must be flexible to design unique solutions to effectively compete in the global marketplace. This technical presentation will cover fundamental bearing application and design knowledge to create unique, optimized, and efficient solutions to meet these varying and sometimes conflicting design targets.
2017-11-15
Event
General Motors Global Propulsion Systems’ first nine-speed automatic transmission makes its debut in the 2017 Chevrolet Malibu, advancing a legacy of multispeed transmissions designed to optimize efficiency, performance and refinement. The Hydra-Matic 9T50 nine-speed is paired with an Ecotec 2.0L Turbo engine in the Malibu, contributing to an EPA estimated 33 mpg highway, a three-percent increase over the 2016 model eight-speed automatic. The 9T50 has a wider 7.6:1 overall ratio, which is the ratio between the first gear ratio and the top gear ratio, - compared to the six-speed’s 6.0:1 ratio. The 9T50 is fitted with a “deep” 4.69 first gear ratio for excellent off-the-line acceleration and a “tall” 0.62 top gear ratio for low-rpm highway cruising. That balance optimizes acceleration and fuel economy while reducing engine noise during cruising. With nine available forward ratios, the step size between the gears is reduced providing smooth, precise upshifts and excellent refinement.
2017-11-14
Event
2017-11-14
Event
2017-11-14
Event
Various technologies have been developed in recent years to make vehicles more environmentally friendly and easier to drive.
2017-11-14
Event
2017-11-14
Event
Traction batteries, used in electrified powertrains, have achieved considerable progress over the past ten years. This progress is driving a re-assessment of the development priorities for energy storage systems. This presentation discusses the transition in traction battery development priorities, currently being experienced within the Industry. Batteries used for both hybrid and plug-in applications will be addressed, as well as for low voltage systems. Factors discussed will include battery performance, cost, and safety. The roles of battery design, materials development and manufacturing processes will be contrasted.
2017-11-14
Event
Thanks to sensors, machine vision and connectivity (V2X, cloud, etc.) vehicles have an increasingly better knowledge about future driving situations, such as traffic, road slope, etc. That information can be used to better control the powertrain, whether for fuel economy, drivability or durability. With automation, the added additional degree of freedom (longitudinal speed) will present further opportunities for powertrain design and control optimization. In this talk we will present simulation frameworks that model powertrain operations during connected and automated driving.
Viewing 121 to 150 of 7453