I've also considered using the reverse switch as part of the EV system on the Electro-Metro.
My car is just too dang fast in reverse. I always have to remember to go real light on the pedal when backing up.
For mine, I would wire a resistor that would kick in to the control circuit when put in reverse. That way, the car would operate at "half-speed" when the backup lights are on. I have also considered a chime or beeper when the backups are on.
Usually pedestrians notice that a car is on by hearing the engine. Hybrids and electrics can and do move without an engine in parking lots. I am not a big fan of "bell the hybrids", but it does make sense to have a way to alert pedestrians that the car is about to move. Even a bicycle bell would help.
Most direct drive EVs use a Forward/OFF/Reverse swtich. BUT, since yours is a direct-drive HYBRID, I really like the idea of using the stick to control the direction of the motor.
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