I just dropped by because of the email notification. My own EV dream is unrealized ...for now.
My understanding is that
Paul and Sabrina's Cheap 3 Phase Inverter (AC Controller) with Field Oriented Control does just that. Maybe it does include battery management, that's for others to say.
I know EVTV are opinionated about BMS. ...since 2009.
GET RID OF THOSE SHUNT BALANCING CIRCUITS - EVTV Motor Verks
And they've had fires in their shop since during testing. Apparently bottom balancing > top balancing?