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Unread 04-08-2010, 15:56
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Re: Drive train questions

Quote:
Originally Posted by Bjenks548 View Post
Thanks everyone for your help. Just so i make sure I have this right...

1) Just weight, cost and complexity
...
While that's all true, you run into another advantage of the 2 gearbox method when one of your wheels lifts off the ground. (I think this has been mentioned, but since you didn't summarize it...)

With 4 independent gearboxes+motors, you're effectively just losing/not using that drive power when the wheel lifts. With the wheels coupled (1 gearbox for 2 wheels), if you lift one wheel, the power can go to the other. This is doubly beneficial because that wheel is probably overweighted, since the other is lifted. So this is good for a traction standpoint.

(An obvious disadvantage of 2 gearboxes is if your drive requires independent steering.)
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