- Aug 20, 2006
Ever notice this seems to be something that kept changing? :
When I tried to investigate the ESS, PEM and eMotor limits a long while back the best info I could get was "eMotor heat is #1 limitation" followed by battery durability and then finally PEM limits. Apparently they came up with ways to cool the eMotor better, so then they got to PEM limits, and then have found new IGBTs to improve the PEM. This still leaves me wondering if the battery durability could now become an issue.
They have eMotors running over 20.000 rpm in the labs.
Batteries are expected to last 500 to 700 deep-charge cycles. He mentioned 3.9s 0-60 time again, top speed limited to 130mph.
Running the eMotor up to 18,000RPMs might not offer any performance advantage.
Still waiting for Tesla to publish a 1.5 power/torque graph, but I suspect it may compare something like so:
Glad they ~finally~ updated that... About time.
Now, the curves are still very inaccurate. look at the tesla torque and power curve. they are actually incorrect at the lower motor speeds. check out torque of 300 vs engine speed of 2000rpm.