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Author: TMFBreakerRob Big gold star, 5000 posts Old School Fool Home Fool Supernova Phoenix 1
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Subject: Electric Motor Development Date: 4/17/2013 3:10 PM
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http://wardsauto.com/sae-world-congress/developer-protean-sa...

Lots of patents for putting electric motors in the wheels.

This sounds great, but there are negatives to such an approach. The biggest negative is a substantial degradation to ride and handling performance due to the increase in what is known as "unsprung weight" (vehicle weight that is not supported by the springs). And.... I can't see the positive to this other than potentially freeing up some space in the car. IMO, it's a superior approach to put the motor on a frame of the vehicle and using a jointed shaft to connect to the wheel.... similar to regular cars and other EVs such as Tesla.

Rob
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