This is the way I have sometimes moved the car now. A single BatPack, at 36 Volts, can be directly connected to the Advanced motor and the motor will not be damaged due to over revving even if the clutch is in and freely turning. Ok, it is spinning really fast but not too fast. The car can now be driven many miles at speeds up to 40 miles per hour with no controller present at all. The controller has a microcomputer as the heart of the system.
Computers now have the ability to save a ton of data in memory.
This data is used to improve the performance of the car by calculating which gear to be in and shifted at what speeds. Driving and shifting an EV are decidedly different from the conventional IC car. EV discussion List Photo Album.