Quote:
Originally Posted by M3WC
It is bound to happen in any EV thread, they dominate the US EV market.
I agree though, lets talk about the i5. I want to hear more about the power derating in the Out of Spec video. Derating to 80% after a few minutes of spirited driving seems odds. Batteries get hot that fast or is software way too conservative?
|
Unlikely it was battery getting too hot as it recovered quite quickly - batteries have a lot of thermal mass and are usually not the weak point for thermal derate - my guess is one of the inverter temperature went beyond a threshold temperature and then cooled down quite quickly (which is typical for an inverter). What I find odd is I've driven i7 and iX way harder, for way longer, with no thermal derating issues.
I spoke to the head of powertrain about it and he seemed just as confused when I showed him the video. He said they've pounded them around the alps and on the street never ran into issues. Last I heard was that they were going to pull the data off of my test car and then email me with the results.
I haven't heard back from them even after prodding. Oh well - I will test it when I can in the US on some canyon roads. I hope it was just a one off weird situation with this particular car because I really wasn't on it that hard at all
Also, I own a Model S Plaid and a Model 3 Performance, both of which have Track Mode that pre-chill the drive systems and run cooling way harder than normal. I hope the real ///M cars have something similar
Kyle