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Device for determining initial correction factor for correcting rotational velocity of tire

  • US 5,959,202 A
  • Filed: 12/15/1997
  • Issued: 09/28/1999
  • Est. Priority Date: 01/27/1997
  • Status: Expired due to Term
First Claim
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1. A device for determining a correction factor for correcting an output of a rotational velocity detector, the detector for detecting the rotational angular velocities of four tires mounted on a vehicle, the device comprising:

  • means for judging whether or not the vehicle is traveling linearly; and

    means for calculating initial correction factors K1 and K2 when the linear travel judging means judges that the vehicle is traveling linearly, wherein the initial correction factor K1 is for eliminating an effect of a difference in effective rolling radius depending on an initial difference between right and left front tires on the rotational velocity of the tires and the initial correction factor K2 is for eliminating an effect of a difference in effective rolling radius depending on an initial difference between right and left rear tires on the rotational velocities of the tires on the basis of the output of the rotational velocity detector.

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