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If it's a high voltage DC controller, probably the IGBT route would be best. Can forklift motors do 300v? I can make a BMS for the lithium pack that can speak to the controller over CANbus. There would need to be a new control board and bms boards made though. Any major new design has the potential to fail, and then new boards be ordered which takes more time and money. For the AC route, the software would have to be finished. I was thinking of just porting over the code from an application note (AN908) to get it working, and then worry about fixing it up later. Also, someone on ecomodder is working on it right now. The hardware is basically done. Are there affordable AC motors out there that can drive a car?
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