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Old 05-10-2009, 01:51 PM   #93 (permalink)
captainslug
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Join Date: Sep 2008
Location: Sterling, VA
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BORK! - '89 Volvo 240 DL Wagon
90 day: 21.27 mpg (US)
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Quote:
Originally Posted by ShadeTreeMech View Post
Instead of using a chain drive, you might consider using timing belt pulleys. V-belts need a bit of tension and rely only on friction, while the timing belt has the teeth to help with grip. Just thinking a gear reduction using a cam pulley on the motor and the crank pulley on the output would give you a good, reliable, quiet and maintenance free gear reduction and would weigh a bit less. Lots of cruisers use a timing belt arrangement as their main drive.

How much drive capacity you expect to lose without the regen braking?
The problem with using a belt is that the drive shaft of the motor is too hard to center anything onto. It's too short and double d-bore. Even after drilling out the center of the pulley I have I couldn't get it to align properly.

Regen at this power level would only net a 10% improvement in range.
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