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Penn State team investigates battery requirements for eVTOL applications vs EVs

Green Car Congress

The unique operating profiles and requirements of electric vertical takeoff and landing (eVTOL) aircraft—also known as flying cars—present formidable challenges to batteries. EVTOL requirements on battery specific power and energy. Representative battery power profile during an eVTOL trip. Yang et al.

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A123: Increasing 48V battery power up to ~25 kW enables advanced mild hybrid capabilities with greater fuel savings

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Improving battery power to such as level would further enable hybridization to near-HEV levels as well as engine downsizing, thereby enabling fuel economy improvements beyond the current 10-15% MHEV limit. The BISG is connected to a 48 V (nominal battery) and also typically to a 12V powernet via a DC/DC convertor.

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Kia launching new diesel 48V mild-hybrid powertrain in 2018 on Sportage; more models to come

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The new “EcoDynamics+” powertrain supplements acceleration with electric power from an additional 48-volt battery and extends combustion engine ‘off time’ using a new Mild-Hybrid Starter-Generator unit. kWh 48-volt lithium-ion battery and a new Mild-Hybrid Starter-Generator (MHSG).

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CPT developing 48-volt electric supercharger for micro-mild hybrids

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The higher-voltage variant will support moves by European vehicle manufacturers announced earlier this year to introduce 48 volt passenger vehicle power networks to help meet the requirement for lower fuel consumption and CO 2 emissions. The project is being supported and funded by the Advanced Lead Acid Battery Consortium (ALABC).

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KSPG shows new compact two-cylinder range extender for EVs, variable valve system

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Automotive supplier KSPG Automotive (formerly Kolbenschmidt Pierburg), a subsidiary of Rheinmetall AG, and FEV have jointly developed a concept for a compact, 30 kW range extender for battery-electric vehicles. The advantages of such power units lie in the fact that they reduce battery size and costs and lower additional related weight.

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NREL Study Finds That A Dynamic Plug-in Vehicle Could Be A Promising Technology Pathway for Cost-Effective Vehicle Electrification

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Using current battery performance and cost, they evaluated PHEVs and EVs across a range of scenarios and configurations—which including 10-, 20- or 40-mile all electric range, with low or high electric power, with or without battery replacement, and with or without opportunity charging. Source: Brooker et al.

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Ford’s 3rd generation powersplit hybrid system

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With the Generation 3 HEV system, Ford decided to downsize the engine from a 2.5L In-house engineering was a key enabler and included all controls, the battery pack, transmission and eDrive system, Gray said. Atkinson to a 2.0L Atkinson to improve fuel economy. This, noted Gray, results in a reduction in acceleration and vehicle speed.

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