New Official Chevrolet Spark EV commercial (video)

3884 Views 4 Replies 4 Participants Last post by Sparky, Jul 15, 2013

Sparky

Discussion Starter · Jul 11, 2013

Here is the new official Spark EV video ad:

Thoughts?

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rfruth

· #2 · Jul 12, 2013

Love it - might help people understand electric motors have all their torque available at 0 RPMs

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The 400 ft-lb of torque is a design limitation, i.e., the motor is capable of more but the engineers limited it to prevent excessive depletion of the battery charge.

Torque is proportional to the current passed through the windings (up to a limit which is governed by the winding cross section, magnetics of the rotor and heat management).

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Raymondjram

· #4 · Jul 14, 2013

rickp said:
The 400 ft-lb of torque is a design limitation, i.e., the motor is capable of more but the engineers limited it to prevent excessive depletion of the battery charge.

Torque is proportional to the current passed through the windings (up to a limit which is governed by the winding cross section, magnetics of the rotor and heat management).

I bet that someone will add a gas cooling system, such as CO2 or even N2, to reduce the coil resistance and run more current to get a higher torque output, maybe for a street racer. This new EV has a lot of potential for modifications if done correctly.

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Sparky

Discussion Starter · #5 · Jul 15, 2013

Rather than create a whole new thread, here is another video. They mention the 400 ft-lbs. torque too. Its a short consumer reports review/summary of the spark ev:

https://www.youtube.com/watch?v=gMUQCAyFpCc

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