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Chevy Volt Delivers Novel Two-Motor, Four-Mode Extended Range Electric Drive System; Seamless Driver Experience Plus Efficiency

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During the serial media launch events for the Chevrolet Volt, GM provided more detail (subsequent to the completion of related patent work) on the novel drive architecture applied in their first extended range electric vehicle to enhance the efficiency of both the battery electric and extended-range driving modes.

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GM and U Mich receive patent on plug-in series hybrid/extended range electric vehicle powertrain using multiple free piston linear alternator engines

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GM Global Technology Operations LLC and the Regents of the University of Michigan recently were awarded a US patent (Nº 8,261,860) for a plug-in series hybrid or range-extended electric vehicle powertrain using multiple free piston linear alternator (FPLA) engines. Numerical values are illustrative and not restrictive.).

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GMs views on challenges for battery development for extended range electric vehicles

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Examples of degradation effects causing Li-ion battery power or capacity fading. Roland Matthé, GM technical manager for the Voltec battery system, provided an overview of GM’s views on the requirements and challenges for batteries specifically for extended range electric vehicles—i.e.,

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Rolls-Royce developing turbogenerator technology for hybrid-electric aviation applications

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Rolls-Royce is developing turbogenerator technology—including a new small engine—designed for hybrid-electric aviation applications. The turbogenerator will recharge batteries after take-off or power propellers directly, enabling aircraft to switch between power sources in flight.

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PG&E showcased extended-range electric truck from via motors at national Plug-In Day event

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Pacific Gas and Electric Company (PG&E) showcased the utility’s first extended-range electric truck with manufacturer VIA Motors at three Bay Area National Plug-In Day events—in San Francisco, San Rafael and Cupertino—on Sunday. The gasoline engine extends the range to 350 more miles.

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Karma AWD Extended Range E-Flex platform supports pickup truck applications

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Karma Automotive announced its newest flexible and modular E-Flex platform with two motor all-wheel drive (AWD) and extended range electric vehicle (EREV) architecture (e.g., The platform is equipped with Karma’s new Silicon Carbide (SiC) inverter e-drive system and features an 80 kWh flat floor battery. earlier post ).

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BYD flagship Han EV series goes on sale in China; Blade Battery

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BYD announced the official launch of its Han EV series, the brand’s long-awaited flagship offering for the global mid-to-large luxury sedan market, including three pure electric models and one hybrid model. The Han EV is the first mass-produced model that uses BYD’s ultra-safe Blade Battery. The Han EV will be sold in China at first.

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