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Calculate power lossess against road gradients

  1. Nov 21, 2009 #1
    i want to calcculate the power lossess of a 60 cc single cylinder water cooled engine against the 5% road gradients.can any one help?
     
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  3. Nov 21, 2009 #2

    berkeman

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    Staff: Mentor

    Welcome to the PF.

    What is the context of your question? What vehicle is this small engine in? What speed is the vehicle moving? Is this just a paper calculation, a simulation, or do you intend to build it for a school project?
     
  4. Nov 21, 2009 #3

    Mech_Engineer

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    To calculate the power required to drive up a hill at a certain speed, calculate the vehicle's vertical speed (speed*grade), and then multiply by the vehicle's mass and G. The engine's dispplacement and cooling are not relevant in this problem.

    [tex]V_{h}=V_{tot}*Grade[/tex]

    [tex]P_{req}=M*g*V_{h}[/tex]
     
  5. Nov 23, 2009 #4
    thnx for ur response.this is basically a school project and we have to build a three wheeler car, 2 wheels at the front and one at the rear and it is to be driven at 30kmph.thnx alot once again.
     
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