Why is it that almost all electric vehicles are single speed reduction gear designs? They seems to rely on the great electric torque and high motor speeds to achieve their performance goals. I've read several manufacturers comment that transmissions aren't necessary or even desirable in electric cars. Two pretty good design groups beg to differ. Audi and Porsche both offer a transmission on at least one electric model & Bosh has a special CVT for electrics available for sale.
Now a lot of guys run a c.v.t. like the Comet on industrial motors, Predator 212 and such, which seem to work fine with just stock hp. So if 5.5 hp works well with a gas engine why not an electric? Both have to contend with drive train losses. More h.p. from either a gas or electric motor, up to the c.v.t. design limit should benefit the performance of either. Other than transmission losses for either motor type I can't see anything but benefits for all around riding, or driving. Higher cost yes, yet in reality not a lot for even a real Comet drive on a bike frame. There would be some cost in fabrication of transmission and motor mounts as well.
What I'm not seeing here is why not? Or is it just that I've listened to so much marketing hype that I've been sold a concept that is fundamentally flawed?
Comment freely please and those currently running gas bikes with c.v.t. drives let us know what you think of them. I have a new Comet clone drive that I mounted on a 99cc Lifan that didn't have the power to work well (3hp) and an electric d.c. brushless that puts out 5hp continuous on 48v. Peak about 7hp. I wanted some comments from the forum before machining the parts for a test setup on the bench. Talk me out of it please as I have so many projects already!
Rick C.
Now a lot of guys run a c.v.t. like the Comet on industrial motors, Predator 212 and such, which seem to work fine with just stock hp. So if 5.5 hp works well with a gas engine why not an electric? Both have to contend with drive train losses. More h.p. from either a gas or electric motor, up to the c.v.t. design limit should benefit the performance of either. Other than transmission losses for either motor type I can't see anything but benefits for all around riding, or driving. Higher cost yes, yet in reality not a lot for even a real Comet drive on a bike frame. There would be some cost in fabrication of transmission and motor mounts as well.
What I'm not seeing here is why not? Or is it just that I've listened to so much marketing hype that I've been sold a concept that is fundamentally flawed?
Comment freely please and those currently running gas bikes with c.v.t. drives let us know what you think of them. I have a new Comet clone drive that I mounted on a 99cc Lifan that didn't have the power to work well (3hp) and an electric d.c. brushless that puts out 5hp continuous on 48v. Peak about 7hp. I wanted some comments from the forum before machining the parts for a test setup on the bench. Talk me out of it please as I have so many projects already!
Rick C.