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SCALABLE VEHICLE MODELS FOR INDOOR TIRE TESTING

  • US 20140188406A1
  • Filed: 10/02/2013
  • Published: 07/03/2014
  • Est. Priority Date: 12/28/2012
  • Status: Abandoned Application
First Claim
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1. A method for creating a scalable vehicle model for indoor tire testing, comprising:

  • selecting a vehicle segment representing a plurality of individual vehicles having various weights;

    defining at least one vehicle model parameter, including at least one of;

    the vehicle'"'"'s wheel base, the vehicle'"'"'s wheel track, the vehicle'"'"'s center of gravity, the vehicle'"'"'s suspension compliance, the vehicle'"'"'s suspension kinematics, the vehicle'"'"'s suspension alignment, the vehicle'"'"'s steering kinematics, the vehicle'"'"'s weight distribution, the vehicle'"'"'s ballasting, the vehicle'"'"'s front-to-rear brake proportioning, a tire stiffness, the vehicle'"'"'s aerodynamic drag, the vehicle'"'"'s frontal area, the vehicle'"'"'s auxiliary roll stiffness, the vehicle'"'"'s fore-aft stiffness, the vehicle'"'"'s cornering stiffness, the vehicle'"'"'s and unsprung mass; and

    characterizing the at least one vehicle model parameter through regression analysis as a function of the total weight of a scalable vehicle model (“

    W”

    ), using the equation P(W)=C0(W)+C1(W)A+C2(W)A2+C3(W)A3,wherein P(W) is the at least one vehicle model parameter,wherein Cn(W) is a regression coefficient as a function of W, andwherein A is an independent variable, including at least one of;

    jounce and steering angle.

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