Electric bike project

Discussion in 'General Electronics Chat' started by Toaster35, Feb 25, 2016.

  1. Toaster35

    Thread Starter New Member

    Feb 25, 2016
    1
    0
    I'm attempting to build an electric motorcycle. My motor is a Leeson 130v DC,. 3 horse, 3500rpm, 54fp. Motor. I'm planning on using a small generator to power it. Like a kind of hybrid. The question is how do you turn AC 120 into 120 DC?
     
  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,969
    744
    Last edited: Feb 25, 2016
    Toaster35 likes this.
  3. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    5,773
    1,103
    'Small' being > 3HP.
     
  4. tcmtech

    Well-Known Member

    Nov 4, 2013
    2,033
    1,625
    So what you end up with is a bike that has a 5 HP engine driving a ~3000 watt generator head that produces the electricity to power the 3 HP motor adding at least 40 - 50 extra pounds of gear to the bike that is doing nothing to help the efficiency of converting fuel energy into mechanical motion.

    Got it. It's target market group is government officials right? o_O
     
    TheButtonThief likes this.
  5. #12

    Expert

    Nov 30, 2010
    16,252
    6,751
    You don't need the capacitor for a DC motor.
    The first problem I see is, how do you make a hybrid when you need 120 volts worth of battery?
    Install 10 car batteries? Use a 2KW inverter?
    You can make an electric bike out of what you have, but a Hybrid vehicle doesn't seem practical from this starting point.
    It seems like you should remove the generator from its motor and attach a centrifugal clutch to the motor. Less parts, more efficiency.
     
  6. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    Toaster35 likes this.
  7. crutschow

    Expert

    Mar 14, 2008
    12,986
    3,226
    That hybrid configuration is way too much of a heavy kludge to put on a bicycle. :rolleyes:
     
  8. TheButtonThief

    Active Member

    Feb 26, 2011
    219
    38
    Turning 120VAC into 120VDC is very much the easiest part of your project. You're going to find many far more challenging issues.
     
    Toaster35 likes this.
Loading...