Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Design calculations for my hybrid e-cycle

  1. Aug 23, 2013 #1
    i'm in the conceptual design stage of my e-cycle.

    my tech reqs :

    1. it should have a max speed of atleast 40 kmph.

    2. gross weight = 120 kg

    3. min range 30 km.

    Please help me with the following design question.

    how to estimate the motor & battery power requirements ?
    Last edited by a moderator: Aug 26, 2013
  2. jcsd
  3. Aug 24, 2013 #2
    You need more specifications and assumptions. I'm not the best with cars so I cant point you to additional parameters with confidence.
  4. Aug 26, 2013 #3
    How many gears? What are the gear ratios and gear diameters?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook