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Modeling the acceleration of a car

  1. May 1, 2003 #1
    i'm curious as to how one could model the acceleration of a car through the gears. it would have to be a formula for speed i think, and it would depend upon the current rpm, the gear ratio, the torque (and horsepower derived from it), and the circumference of the tire. i'd appreciate any input.
  2. jcsd
  3. May 1, 2003 #2


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    Staff: Mentor

    You have a good start there. Torque curves are sometimes published so you could get your starting data there.

    Another issues to consider: Rotational inertia in the tires. They are accelerating angularly and linearly at the same time. So you need their moment of inertia.
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