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Old Sep 15th, 2020, 14:02   #12
Ron Kwas
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Last Online: Today 14:28
Join Date: Jul 2007
Location: Connecticut, USA


The whole need for a Gearbox comes from needing to keep an internal combustion engine in its quite limited torque range for a given roadspeed...this falls away with an electric motor where high torque is available from 0RPM, and all the way to max all comes down to the motor drive system (typically a variable frequency PWM system, and the most advanced ones have regenerative braking for max efficiency).

I think it's preferred to drive the Driveshaft directly, otherwise shifting would be a major issues (a clutch would be required to decouple the electric engine from drivetrain during shifting), or else...! ...or, it would be put into gear for a high or low speed range before moving, but could never be shifted while moving...

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