| 摘要 |
<p>The computer 22 is provided with a uniformity component calculation device 31, which calculates a uniformity component U(i) on the basis of the wheel speed signal, a rotation order component level calculation device 32, which calculates rotation order component levels GN (N = 1, 2, 3), which are sizes of respective rotation order components of the uniformity component U(i), a first order judgment index calculation device 40, which calculates judgment indices K1 and S1, a second order judgment index calculation device 50, which calculates judgment indices K2 and S2, a third order judgment index calculation device 60, which calculates judgment indices K3 and S3, and an abnormality prediction device 70, which predicts tire abnormalities utilizing the respective judgment indices.</p> |
