this isnt really under electronics but it would definitely involve it. im not sure if this would work but i havent seen any car already that use it. im not trying to come up with a perpetual motion machine. i was hoping some more experienced people can shed light on it.
i had an idea about an electric car. im picturing how a normal electric car works: you have batteries, electronics to regulate voltage and current, and a electric motor driving 2 wheels. why not add a generator to recharge the batteries. the generator can be driven by the 2 wheels that are not driven. or the generator can be used to partially power the electric motor.
like said this would not fully power anything, but it would help alot. i know this would affect weight, hp, etc. you would be harnessing the rolling energy the car already has to generate electricity. has anyone tried this? any input?