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electric EVette
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Written on: 02 July 2010 [17:51]
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TomSines
Topic creator
registered since: 19.06.2010
Posts: 1
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Hi Stefan, The Twike looks fun to drive. I have a unique three wheeler you might want to see. To see a video of it driving with out a steering wheel go to http://electricevette.com. Tom Sines |
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Written on: 03 July 2010 [10:23]
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ecoadmin
Administrator
registered since: 20.07.2007
Posts: 517
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Hi Tom, welcome to the forums. Great car you have! Congratulations. I watched the vid's. That 'drive-by-wire' system is very interesting. Are you planning to produce more of those cars? How does the drive-by-wire steering work? Guess that the front wheel is commanded by an electric motor you operate from the steering controls inside your car? Cheers, Stefan ecocarforum.com - Green Car Network
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Written on: 03 July 2010 [11:14]
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insight
 registered since: 26.04.2008
Posts: 34
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Stehan I am guessing that each rear wheels power is controlled by the joystick and the single front wheel is just castored to turn/steer freely in the direction of the car. This would be much like electric wheel chairs where if a constant speed is applied to one rear wheel but slight additional power is applied to the other rear wheel it results in the chair/car direction being altered and the castored front wheel just steering in the new direction. Beautifully simple but software needed to compensate for sensitivity at increased speeds,much lke the variable ratio power steering on conventional cars. With a castored front wheel the car could turn 360 in a little more than its own length by slowly driving each rear wheel in opposite directions at the same time. Will have to wait for confirmation from Tom on this as its only my theory. |
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