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Automotive How can i calculate torque by a motor

  1. Mar 14, 2016 #1
    I want to drive a trike but using dynamo at pedaling and the electrical power given to 400 watt motor
    So any suggestion what i can do best
  2. jcsd
  3. Mar 15, 2016 #2


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    Science Advisor

    Why? What problem are you trying to solve?
    Pedal > chain > wheel is much more efficient (up to 99% ) than pedal > dynamo > motor > wheel ( could be lower than 50 %)
    It gets even worse if you include a battery.
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