Browse Topic: Electric vertical take-off and landing (EVTOL)

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DC-DC Converters for High Reliability eVTOL Auxiliary Power SystemsTBMG-5214712/01/2024
SAE TOMORROW TODAY: Empowering Superheroes: Emergency eVTOL Aircraft from Start-Up Jump Aero1317311/28/2021
In emergency situations, every second counts - but long distances to rural areas and congested city traffic often increase the time it takes to transport a patient to a hospital. Jump Aero is mobilizing eVTOL aircraft as a solution to cut emergency response time in half and save thousands of lives. Co-founders Carl Dietrich, President/Chief Designer, and Katerina Barilov, Head of Business Development, discuss their passion for the Jump Aero mission. Hear more about how electric aircraft can reduce the time it takes to get a responder on the scene, why their EMTs are required to learn how to fly an airplane, and how their commitment to engage with EMS communities builds partnerships and trust. Stay up to date on the latest news from Jump Aero: https://www.jumpaero.com/
Hineman, Marcie
Pyrofuse Modeling for eVTOL Aircraft DC Protection2021-01-004103/02/2021
Contemporary trends are leading towards the electrification of aircraft for urban mobility applications. Accordingly, there is a high demand for advancements in light-weight, high voltage technologies to realize these new aircraft types. Driven by recent developments in the automotive industry, hybrid Pyrofuse protection devices have emerged as one such new candidate technology. Pyrofuses offer rapid clearance of fault currents, reduced cost and weight when compared to conventional mechanical breakers. In addition, Pyrofuses have the ability to tune the time-current curve to fit the application’s fault response characteristics. However, Pyrofuses are non-resettable devices whose exclusive use for electrical protection could present potential operational hazards and certification challenges in aerospace applications. Model-based analysis will be critical in supporting this evaluation. Accordingly, this paper offers the first complete design methodology to transiently model Pyrofuse
Altouq, Shadan, Fong, Kenny, Norman, Patrick, Burt, Graeme
Battery Improvement Enhances Electric Flight and Long-Range Electric CarsTBMG-3779810/01/2020
In the pursuit of a rechargeable battery that can power electric vehicles (EVs) for hundreds of miles on a single charge, scientists have endeavored to replace the graphite anodes currently used in EV batteries with lithium metal anodes. But while lithium metal extends an EV's driving range by 30 to 50%, it also shortens the battery's useful life due to lithium dendrites — tiny, treelike defects that form on the lithium anode over the course of many charge and discharge cycles. Dendrites also short-circuit the cells in the battery if they make contact with the cathode.
SAE TOMORROW TODAY: The Future of Urban Air Mobility1289406/19/2020
We take to the sky as a pioneering voice in VTOL, Mark Moore, the Engineering Director of Aviation at Uber Elevate, joins host Grayson Brulte to walk through his journey from NASA to Uber and how eVTOLs (electric vertical takeoff and landing aircraft) will lead to redesigned cities with transportation freedom. Mark breaks down the misconceptions of eVTOLs and their benefits compared to helicopters, including reduced noise pollution and the safety parameters built into eVTOL design that create thrusting control redundancies to ensure continued operation even if a part is broken. He shares his unique perspective on how the traditional roles of commercial operators and government agencies have flipped with Silicon Valley leading the charge on the technological innovations and capital investment for eVTOLs. The two discuss Uber's Elevate strategy of collaboration for the establishment of an ecosystem of developers, public officials and key stakeholders to make the endeavor a reality. Mark
Hineman, Marcie
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