Yes... that's the achilies heel of fully electic cars.... low range and short battery life. While your average person drives something like 30-40 mile a day, people in America like knowing they could hop in their cars and drive to California if they wanted to.

Plus, our electical grid wouldn't handle large amounts of fully electric cars.

 

yea, wouldnt work at all, the cost of electric so far is very vague, the selling point it to save money on gasoline, however that cost could be easily offset by high electric bills.

like i said before the car was only pretty much built to introduce the idea of a efficient (enough) fully electric sports car.

idk who the hell would actually pay money to buy one tho.

 

*Engage Tinfoil Hat*

Our electric grid can just barely handle what we demand now. If these, or similar cars, were widely available we would actually have to update the current system so a certain... entity... is doing it's best to keep that quiet and ignore the problem until it becomes a catastrophe. That's why they killed three of Telsa's execs. Well, that and it would be competition with their other... vested interests.

Don't forget, you're somehow doing the environment a solid by using lithium ion batteries... which are cheaper to scrap than to recycle.

 

There are two here in town, one is a charcoal gray one that I see all the time. They're good looking cars, I'm still not sold on the fact that electric cars are the way of the future though, at least until the battery technology becomes plausible for high production and high capacity at low cost.

 

I claim to be no expert on power/dyno graphs or electric motors, but from my basic knowledge this graph is pretty odd... First of all there is relatively no powerband, max torque and power both peak at 5250rpm. Second of all the motor redlines at 14000rpm, but torque and power decline until the engine speed gets that high! This doesn't have to do with anything, but if you read the graph backwards and switch the torque and power lines, its similar to the graph of a large turbo setup.

 

Horsepower is mathematically derived from torque. That's why the plots look like that. Flat torque will make a linear HP plot, because HP = torque*RPM/5252. That's also why the HP plot has a knee where the torque falls off, and also why they peak at the same time. Put those values for torque vs RPM in Excel, and plug them into that formula, and you'll get the power plot. You can see the relationships on the dyno plot once you know it's just math. Once the torque plot becomes a curve instead of a line, the HP plot becomes a curve also. You get the picture.

It's an electric motor, so it makes max torque from zero RPM and then has decreasing efficiency as it goes up in RPM. It all has to do with a decreasing amount of time to build enough magnetic flux per motor pole, I can't remember the specifics of how all that works. L*di/dT and all that crap.

Redline doesn't have to do with anything except engine damage. Lots of engines make good power up to (and above) redline, but you run the risk of valve damage, etc. so a rev limit is there for a reason. An electric motor has a damage threshold too (mostly for the bearings) but because torque decreases with RPM, the safe operating RPM limit isn't going to be the same place that it keeps making lots of power. It's a different device, so you can't really compare the same characteristics of an engine and a motor because of that.

So yeah, it's pretty normal for what an electric motor plot should look like..

 

300 ft lbs of torque at 0 rpm. (if i'm reading that right). should be able to feel that shit.

 

looks like a retarded lotus.

 

That is one hell of a nice golf cart

 

You're reading that right. Electric motors make max torque at zero RPM.