I'm trying to make my own inverter with tesla model-s motor. first step is estimating the motor's parameter. To estimating the motor's parameter, we have to know rated voltage,current,frequency. Generally, motor has it's name plate that tells us the rated voltage,current,frequency but there is no nameplate on my motor. My question is where could I find rated voltage,current,frequency ? Sorry for grammatical mistakes. My mother tongue is not English. And thank you to read my long question.