Measuring and testing – Tire – tread or roadway
Reexamination Certificate
2005-09-12
2008-11-18
Allen, Andre J. (Department: 2855)
Measuring and testing
Tire, tread or roadway
Reexamination Certificate
active
07451642
ABSTRACT:
There is provided a system and method for quantitative analysis of a cause of tire trouble capable of quantitatively analyzing whether the tire trouble is caused by the tire itself or in a matter of harshness of a tire using condition in light of not only a force acting on a tire mounted on a running vehicle but also harshness of a tire using condition such as a traveling speed of the vehicle, level difference of a road surface, a curve and gradient information. The method for quantitative analysis of a cause of tire trouble according to the present invention is characterized by comprising the steps of receiving positional data of a running vehicle from the GPS, simultaneously measuring triaxial accelerations which are accelerations acting on the running vehicle in back-and-forward, right-and-left and up-and-down directions while time synchronizing with the received data, quantitatively analyzing harshness of a tire using condition from the received positional data and the triaxial acceleration data, and displaying an analysis result.
REFERENCES:
patent: 5736939 (1998-04-01), Corcoran
patent: 5847645 (1998-12-01), Boesch
patent: 2003/0006893 (2003-01-01), Dunbridge et al.
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Hara Yuki
Kase Junichi
Kikuchi Takashi
Allen Andre J.
Bridgestone Corporation
Jenkins Jermaine
Sughrue & Mion, PLLC
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