Re:The end of the manual transmission is near?
by Sohcahtoa82 on Thursday August 25, 2022 @01:44PM
(#32597264)
> > You always have full power available.
> This is also incorrect, but less so than the max torque claim
Eh, I think you're being a bit pedantic here.
The point was that in an EV, you always have the maximum torque for a given speed available. Whereas in an ICE, you'll have to downshift, which in some automatic cars can take a second or two. You can suddenly floor the gas and go nowhere, whereas an EV takes off immediately. Even a 600 horsepower hypercar will be a little sluggish if you floor it at 55 mph in the top gear.
Re:The end of the manual transmission is near?
by zaarn on Thursday August 25, 2022 @07:35AM
(#32592305)
Most EV motors are fairly flat, but as you mention, they use software to further flatten in. Reality is; the torque curve is nearly perfectly flat.
Re:The end of the manual transmission is near?
by sokoloff on Thursday August 25, 2022 @07:41AM
(#32592358)
That’s contrary to electric motor theory and to the dyno test that I linked above. The power curve is much flatter than the torque curve.
https://electrek.co/wp-content/uploads/sites/3/2017/02/29007...
Sure there is! Electrics have maximum torque at zero RPM. As RPM increases, their torque drops off. Some cars will have a torque limit that provides for constant torque (less than the motor would be capable of), but as RPM continued to increase, eventually the torque falls off.
> You always have full power available.
This is also incorrect, but less so than the max torque claim, as power is torque times RPM (times a constant), so as RPM rises and torque falls, power is closer to constant than torque is.
Here’s an article covering a dyno test of a plaid Model S: https://electrek.co/2017/02/21/tesla-model-s-p100d-ludicrous...