OK, here is what I have learned through my investigations into my acceleration issue. The temperature you are seeing clime rapidly is the rotor temperature.There is no physical rotor temperature sensor. Rotor temperature is a derived (calculated) based on calculated Iq rotor current. The rotor temperature limit is set at 200C.In my case the calculated temperature reaches the limit when I quickly accelerate the Mini.The calculated rotor current rapidly ramps (3 sec) to around 371A, rotor temperature reaches 200C and limits kick in and the rotor current/available torque rapidly drop ending the thrill of EV acceleration.
There is a time constant parameters associated with the calculated temperature which I have played with, where I have extended the acceleration times. I fear, however, I may be hurting the motor.I thought the Azure software time constant was not correct or the algorithm is not proper.This feature appears to be something that got added in later software release. Maybe to solve some field failure issues. Wonder if any of the other drives (Scott) being used calculate the rotor temperature. It was hard for me to imagine the Rotor temperature climbing from basically room temperature to 200 C in such a short time even at 371A.I found a few induction motor references that indicate it might, and that has made me concerned about it. Perhaps some others here like Major could comment.
So in your case seeing the indicated temperature ramping to 80 C for short intervals is not likely an issue. If you hit the 200C limit you will notice a significant pull back. I would base any concerns on what the physically measured temperatures (Stator) says for any concerns about the actual motor cooling system.The Rotor temperature algorithm uses the measured Stator temperature as the base temperature for its calculation, because the Rotor Temperature matches it, except during Iq current transients.