Lawrence Rhodes via EV wrote:
I'm looking at options for my Terratrike. Mid vs hub seems to be the thing. Seems bike systems are only 80% efficient. Has any one had good success with efficiency as well as speed. I'm looking to top out at 30mph with a 20 inch wheel. Is voltage an issue? I'd like to keep it to 48vdc but I'm willing to go higher or lower if it is an advantage(money or performance). I will eventually have a shell with solar panels...
Maybe a Lynch motor (Lynch, Lemco, Etek, AGNI, etc.)? They are over 90% efficient, and being a DC motor, can be switched straight to the battery for no controller losses. Rig a series/parallel setup with switches or relays to get 12v/24v/48v for speed control; that's also essentially 100% efficient.
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