All right so I did a lot of categorizing how this worked in practice on a 2018 3LR RWD way back when(2018/19) but things change and while a lot of people may not care about this I feel it necessary to attempt to update this information. I also need some help brainstorming what is going on, haha.
First some background. Previously, when routing to a supercharger, while stopped, a RWD vehicle would push 3.5-4kW to the rear stator in a non propulsive waveform in order to generate heat. This heat would then be transferred to coolant and then to the battery to warm the battery for increased charging efficiency. In an AWD vehicle(as per data from others) it would push another 3.5-4kW to the front stator as well. Now the trick with this was that while in motion, the car could not add non-propulsive power to the rear stator at all above around 30mph and below 30mph it was between 0 and the 3.5-4kW(at standstill), This was tested extensively by me with many graphs made.
I just recently plugged in my OBDII adapter and loaded up ScanMyTesla again for another subject and while checking to see if a previous SMT flaw had been fixed I noticed that the preconditioning on the way to a supercharger has changed. What I saw is that even at highway speeds(over 60mph) there was still additional stator heating being applied when routed to a supercharger. The problem is that SMT did not show any noticeable additional power to account for that heating whereas before I was able to visually perceive the change in SMT live. I had HVAC turned off including seat heaters. I confirmed that heating of stator was not due to normal driving by turning preconditioning on(routing to supercharger) letting it warm up a couple degrees C then turning off preconditioning and seeing the stator temp drop, all while driving on the highway.
I thought it may be adjusting coolant or oil flow rates, or changing the configuration of the superbottle valve but I didn't see any changes in SMT while switching on and off preconditioning.
So the seeming obvious answer is that Tesla found a way to add non-propulsive power to the rear stator while traveling at higher speeds and that SMT is just not accounting for that power for some reason. The other answer is that Tesla is doing something else that isn't using additional power from the battery but I don't have any theories on what that could possibly be other than super Tesla magic.
Any thoughts/input?
Because I mentioned the possibility of additional power not being accounted for in SMT I would specifically invite @amund7 and @JWardell to maybe have some helpful input?
First some background. Previously, when routing to a supercharger, while stopped, a RWD vehicle would push 3.5-4kW to the rear stator in a non propulsive waveform in order to generate heat. This heat would then be transferred to coolant and then to the battery to warm the battery for increased charging efficiency. In an AWD vehicle(as per data from others) it would push another 3.5-4kW to the front stator as well. Now the trick with this was that while in motion, the car could not add non-propulsive power to the rear stator at all above around 30mph and below 30mph it was between 0 and the 3.5-4kW(at standstill), This was tested extensively by me with many graphs made.
I just recently plugged in my OBDII adapter and loaded up ScanMyTesla again for another subject and while checking to see if a previous SMT flaw had been fixed I noticed that the preconditioning on the way to a supercharger has changed. What I saw is that even at highway speeds(over 60mph) there was still additional stator heating being applied when routed to a supercharger. The problem is that SMT did not show any noticeable additional power to account for that heating whereas before I was able to visually perceive the change in SMT live. I had HVAC turned off including seat heaters. I confirmed that heating of stator was not due to normal driving by turning preconditioning on(routing to supercharger) letting it warm up a couple degrees C then turning off preconditioning and seeing the stator temp drop, all while driving on the highway.
I thought it may be adjusting coolant or oil flow rates, or changing the configuration of the superbottle valve but I didn't see any changes in SMT while switching on and off preconditioning.
So the seeming obvious answer is that Tesla found a way to add non-propulsive power to the rear stator while traveling at higher speeds and that SMT is just not accounting for that power for some reason. The other answer is that Tesla is doing something else that isn't using additional power from the battery but I don't have any theories on what that could possibly be other than super Tesla magic.
Any thoughts/input?
Because I mentioned the possibility of additional power not being accounted for in SMT I would specifically invite @amund7 and @JWardell to maybe have some helpful input?