One of the many ways in which current EVs differ from legacy vehicles is that they don’t shift gears. While modern ICE vehicles sport 8- and 9-speed automatics, 7-speed manuals and continuously variable transmissions, which help to improve fuel efficiency, most EVs get by with a simple single-speed gearbox. Conventional wisdom is that, because electric… Read more »
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oneDRIVE of a kind: KLD Energy’s new propulsion system
In August 2013, KLD Energy announced that it has received official UN and IEC certification for the battery pack solution of its proprietary electric drive system. The announcement marked the end of a five-year development effort and the beginning of high-volume production for the company’s ultra-efficient turnkey oneDRIVE propulsion system. There are hundreds of different… Read more »
In-wheel house: Protean Electric’s in-wheel drive system nears production
When Protean Electric begins production of its Protean Drive in-wheel electric drive system later this year, it could mark the stirring comeback of the wheel hub motor, a concept that’s been more than a century in the making. Electric wheel-hub motors date all the way back to 1884, and none other than Ferdinand Porsche used… Read more »
Two new in-wheel electric drive systems unveiled
In-wheel electric drive systems are a hot topic these days. Mounting the electric motor and power electronics within a wheel assembly can improve efficiency, save space and give automakers more flexibility in body design. This week, two leaders in the field introduced new in-wheel offerings. Protean Electric announced the debut of its production in-wheel motor… Read more »