My wife said she wants one!😂😂😂

Got my attention.  I haven't been keeping up with electric cars.  I didn't know they could produce that much horse power.
 

TKOPerformance wrote:

Electric motors produce a lot of torque, albeit in a strange way, because peak torque in an electric motor is at zero RPM. 

Ok ------ This isn't the first time I've seen that statement and I realize I'm not the brightest bulb in the chandler. But how does something that is not moving have torque. Especially an electric motor that takes awhile to spin up to a usable rpm?  I would think of that as resistance known as friction.

I too realize I'm not the brightest bulb in the chandler, but with an internal combustion engine is not that why you would rev your engine before launch to an rpm level where you have mucho torque?

TKOPerformance wrote:

HudginJ3 wrote:

TKOPerformance wrote:

Electric motors produce a lot of torque, albeit in a strange way, because peak torque in an electric motor is at zero RPM. 

Ok ------ This isn't the first time I've seen that statement and I realize I'm not the brightest bulb in the chandler. But how does something that is not moving have torque. Especially an electric motor that takes awhile to spin up to a usable rpm?  I would think of that as resistance known as friction.

Because in an electric motor maximum torque is generated in the instant before it initially starts to spin.  That is when the magnetic field in opposition to supply voltage is the strongest.  That opposition force is how an electric motor produces torque, and why nothing has to actually move to generate maximum torque.  The torque curve remains flat right off the jump as it starts to spin, so that torque becomes usable (obviously making maximum torque without moving does you no good in a vehicle).  Here's a decent article about it:

https://www.carthrottle.com/post/how-do-electric-vehicles-produce-instant-torque/

     For what it's worth and because I'm trying to procrastinate going out side and clean up after yesterdays party and fireworks, this is how I make my small brain under stand this. Basically an electric motors torque is made by applied voltage creating a magnetic field through the motors coils of wire. The higher the voltage the stronger the magnetic field the more torque. Now an electric motor and generator are basically designed the same way. When an electric motor starts to spin it creates an internal voltage, the faster it spins the higher the voltage. The problem is  the internal voltage is in the opposite direction of the supply voltage so they are subtractive. So as the motor spins faster the operate voltage actually goes down, the magnetic field goes down and so does the torque. 
     An electric motors are know for their high torque at low RPM, that's why they replaced steam locomotives with electric. Maybe NASCAR can do the same. Make a car with a diesel motor, run a generator that runs an electric motor. 
     Time to go, I'm being told to go clean up!

So in reality the torque isn't really there till you give it full (gas) via a variable resistor. You can spin the motor backwards till the electric load stops it and continue to open the resistor till it starts to spin forward. It still doesn't have full torque till the resistor is fully opened. That resistance is needed to have a controllable vehicle. Therefore the torque isn't there till it has no resistance. So if your going say 60 mph then open the resistor full throttle the torque is gone. It seems torque is a theory not a reality because it is not usable.     ???????