New Official Chevrolet Spark EV commercial (video) - Chevy Spark Forum : Chevrolet Spark Forums
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post #1 of 5 Old 07-11-2013, 07:23 PM Thread Starter
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New Official Chevrolet Spark EV commercial (video)

Here is the new official Spark EV video ad:


Thoughts?
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post #2 of 5 Old 07-12-2013, 04:35 PM
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Love it - might help people understand electric motors have all their torque available at 0 RPMs
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post #3 of 5 Old 07-13-2013, 06:58 PM
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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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post #4 of 5 Old 07-13-2013, 09:42 PM
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Wink

Quote:
Originally Posted by rickp View Post
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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post #5 of 5 Old 07-15-2013, 02:45 PM Thread Starter
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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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