Here's someone who used a CVT on an electric motorbike: http://www.evalbum.com/716
Contact him. I remember he posted on the old V with a lot of detail and he spent a lot of time and effort working out the CVT drive.
[url=/forum-topic/motorcycles-and-large-scooters/587-my-kz750-electric-motorcycle-project]KZ750 Motorcycle Conversion[/url]
[url=/forum-topic/motorcycles-and-large-scooters/588-fixing-my-chinese-scooter]900 watt scooter[/url]
Pic from http://www.electri
I found this new article Fallbrook Technologies NuVinci CVT-Style Transmission for EVs that I thought was interesting. The talked about the Currie Technologies electric scooters using this CVT.
Thanks very much for all the CVT links!
Oh man, that NuVinci set up looks sweet - I bet I can't buy one though :(
John H. Founder of Current Motor Company - opinions on this site belong to me; not to my employerRemember: " 'lectric for local. diesel for distance" - JTH, Amp Bros || "No Gas.
I know. Little pricey at $400. And I don't think it could handle even close to a PMG. It's really made for a human's power output.
Though, I can say it's a very nice little gadget. I got a chance to try one out at EVS-23. Unbelievably smooth, and you can alter the ratio without actually going forward.
The author of this post isn't responsible for any injury, disability or dismemberment, death, financial loss, illness, addiction, hereditary disease, or any other undesirable consequence or general misfortune resulting from use of the "information" contai
But my reading of the NuVinci web site says they intend, in the future, to have larger size transmissions for bigger vehicles.
- David Herron, The Long Tail Pipe, davidherron.com, 7gen.com, What is Reiki
Yeah, I just hope one that's big enough for an EV won't cost $4000!
You guys need to broaden your horizons so you're able to pull ideas from more outside sources. On a dirt bike many riders indeed do not use the clutch and that is part of the answer. The rest of the answer comes from drag racing.
Drag racers use an air shifter to go thru the gears while they motivate down the track. Part of the air shifter set-up is a "kill" switch that shuts the engine off for just a split second(only a trained ear would even hear it) while the air cylinder shoves it into gear--just long enough to take a little load off the gears and give a reliable shift. This takes place of "letting off the throttle" which you cannot do quickly enough even if you could maintain control while you did. It seems to me that a "kill" switch could be engineered into the controller or the motor circuit to do this. The only problem that I forsee would be the need to insure that it did not cause a harmful emf or other surge when used.
Now that I think about it I've known a few riders of dirt bikes to punch the kill switch when shifting(only the momentary type--rocker switch too slow and if you fumble turning it back on you're dead!).
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