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Registered Member #1749
Joined: Fri Oct 10 2008, 02:04AM
Location: Claremont New Hampshire
Posts: 497
I was thinking if I had the money to waist I would buy all these things to make a electric tricycle with these items. the motor the controller the batteries *6 the tricycle maybe replace the basket with the batteries and the controller and replace the thin wheels with motorcycle wheels. And I was thinking it would be cool to make a differential for the PMG 132 or the PMG 080 here It would be crazy to be able to do some thing like this what do you think?
Registered Member #27
Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
Instead of all those gears, why not add one motor for each wheel, it is probably going to be simpler, it will also give better traction.
Have a look at cheap and powerful brushless motors. The tiny ones can deliver several kW. Something like this but with one smaller motor on each wheel.
Registered Member #1749
Joined: Fri Oct 10 2008, 02:04AM
Location: Claremont New Hampshire
Posts: 497
Haha I never would have expected something like that do you know why they used a clutch an electric motor is better for low end torque right. But look at these I think this bike has the PMG 132 with a neet little heat sink wrapped around it.
And this has the PMG 132 at 48V it said 63MPH but I am not looking for speed I just want something that will climb a mountain I think it would be fun. It just so cool that these motors are so small for there output.
Registered Member #27
Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
You are right that an electric motor has much higher torque at low rpm. I can guess that the motor controllers were not designed for very low rpm and possibly extreme currents so a clutch is a simple way to protect them.
Remember that even if it is electric it is not a toy, A 15 kW motor can kill you in just a couple of seconds and if you short the batteries with yourself or something else you might end up just as dead.
Registered Member #1749
Joined: Fri Oct 10 2008, 02:04AM
Location: Claremont New Hampshire
Posts: 497
Oh yea I know the dangers but honestly everything we do can be deadly from high voltage output of a VTTC driving a car every day or just walking down the road just keep in mind that there is a point to the danger of what you are doing if you show respect and care for what you are doing you will be fine don't let the previous thread about high voltage mistakes fool you I show a lot of care when it comes to certan death and if I do ever build something with this power it is not going to be 72V right off just got to start off slow and work out the kinks and most important the safety of me and the $1000 motor. Honestly is it any different than four wheelers and dirt bikes or even motor cycles there is a lot of power and speed people die every year on them they are considered to be fun when I get into thinking about safety it alway gets to you can never be safe even in the comfort of your own home.
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Electric vehicle?
Honestly is it any different than four wheelers and dirt bikes or even motor cycles there is a lot of power and speed people die every year on them they are considered to be fun when I get into thinking about safety it alway gets to you can never be safe even in the comfort of your own home.