4 ms·
This seems to make more sense for optimizing 0-60mph acceleration metrics than just about anything else. Using SuperCaps, a base Model 3 could have the 0-60 tim
by jmpman 8y ago
This seems to make more sense for optimizing 0-60mph acceleration metrics than just about anything else. Using SuperCaps, a base Model 3 could have the 0-60 times of a P100D for much less than the cost of the required batteries.
4WD off road vehicles could also have much higher torque for brief periods of time.
- jseutter 8y agoWhile true, I think cold temperatures might be the more applicable scenario. When the batteries are cold, the amount of power you can extract is limited, as is the amount of power you can inject by regen braking. This is one factor that leads to crappy range in cold climates. Capacitors can smooth out the power curve - need 1000 amps of current for 4 seconds? No problem, that comes from the capacitors and the battery only sees a draw of 200 amps. Need to regen 600 amps for 15 seconds? No problem, dump that into the capacitors and recharge the batteries at 50 amps for the next minute. Knowing Tesla, they will use capacitors to offer both; a super-plaid mode that can supply 1800 amps momentarily, as well as better cold weather performance.
- jmpman 8y agoCan you market the cold temp regen? Maybe? Can you market 0-60 numbers or 4wd capability? Absolutely. Which one is sexier? I think Elon would say the performance numbers.
- HeadsUpHigh 8y agoThere is literally no reason why they have to pick between the 2. It's one system that can do both depending on the situation. Some countries/areas will care more about the cold temp regen and some other markets will care more about 4wd or the 0-60 performance. The great thing about EVs is that you can just redirect power to whatever you need at any given time.