Without knowing exactly how they accomplished it, I have read accounts of early EVs which indicate they had several fixed, driver selectable and changeable 'speeds', actually power settings presumably. One car allowed a choice of 3, 6, 9 or 12 mph, IIRR.
Last edited by GRA
on Wed Feb 01, 2012 2:58 pm, edited 1 time in total.
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].
The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.