Vehicle sensor caliration for determining vehicle dynamics

  • US 20110202225A1
  • Filed: 02/12/2010
  • Published: 08/18/2011
  • Est. Priority Date: 02/12/2010
  • Status: Active Grant
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First Claim
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1. A method of calibrating a tri-axial accelerometer (providing uncalibrated outputs for X, Y and Z Cartesian axes) resident in a locator that is installed on a movable asset, comprising the steps of:

  • a) obtaining the uncalibrated X, Y, and Z axes accelerometer output data;

    b) determining a coordinate transform T that is appropriate for the tri-axial orientation of the accelerometer relative to the frame of reference of the movable asset;

    c) applying said transform to said uncalibrated X, Y, and Z axes accelerometer output data to obtain calibrated X, Y, and Z axes accelerometer data.

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