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Apparatus for estimating tire wear amount and a vehicle on which the apparatus for estimating tire wear is mounted

  • US 8,493,200 B2
  • Filed: 11/21/2007
  • Issued: 07/23/2013
  • Est. Priority Date: 12/13/2006
  • Status: Active Grant
First Claim
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1. An apparatus for estimating tire wear amount comprising:

  • a vehicle longitudinal acceleration measuring unit installed to a vehicle body side of a vehicle and measuring longitudinal acceleration of the driven vehicle;

    a wheel rotation velocity measuring unit of measuring rotation velocity of a wheel of the vehicle;

    a calculating unit of calculating changing amount of measured rotation velocity of the wheel based on rotation velocity of the wheel; and

    a wear amount estimating unit of estimating wear amount of the tire mounted on the vehicle from the measured longitudinal acceleration ax measured by the acceleration measuring unit and the calculated changing amount of wheel rotation velocity Vw0 calculated by the calculating unit for calculating the changing amount of measured rotation velocity of the wheel.

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