EVDRIVER wrote:Since most Tesla drivers are getting fantastic range and high instrument accuracy they really don't care...
Satisfaction out of ignorance?
What the range attempt showed is that the model 3 instruments are definitely NOT accurate, and under warm conditions, will significantly underestimate energy use,
And according to TSLA, the principle reason is that thermal management (for the pack, and by implication, for the cab as well) is left unaccounted for by the energy use/efficiency displays.
And note these were only warm
conditions, with daytime highs of only 93 to 94 F (and of course much lower night and average temperatures) according to the drivers.
Imagine the kW required in really hot temperatures (think Phoenix in August, instead of Denver in May)
for pack cooling?
This is surprising because the reporting on TSLA thermal management on the S/X packs I've seen suggested modules were allowed to reach up to ~113 F during DC charges:https://www.teslarati.com/watch-tesla-b ... rcharging/
And/or with the (lower) coolant temperature up to ~104 F during repeated charge/discharge cycles:https://www.youtube.com/watch?v=izUl28YtQbE
If model 3 packs were allowed to reach similar temperatures, there should
be little to no energy required at all for cooling during such mild weather, and with as low kW demand, as during the 606 mile test.
So, the new cells used in model 3's may require lower temperatures and demand more energy for cooling, so the first thing to look into is probably, just what temperatures the model 3 packs are required to maintain, in high ambient temperatures.
Any easy way to monitor pack temperatures in a model 3?