Xavier Petienne Neau

US Patent:

20160121671, May 5, 2016

Filed:

Jul 31, 2013

Appl. No.:

14/893748

Inventors:

- Clermont-Ferrand, FR
- Granges-Paccot, CH
Xavier NEAU - Greenville SC, US

International Classification:

B60C 99/00

Abstract:

Systems and methods for analyzing tread surface data to assess tire tread parameters, such as irregular wear characteristics of a tire tread, are provided. For example, tread surface data, such as a tread surface map, can be processed to generate a convex hull for the tire. The convex hull can approximate the convex outer surface of the tire. The convex hull can be used as a reference for analyzing the tread surface data. In particular, irregular wear zones in the tire tread can be mathematically concave relative to the convex hull. Comparing the tread surface data to the convex hull can reveal information indicative of irregular wear characteristics of the tire. For instance, the local depth of the measured tread surface data relative to the convex hull can provide a quantitative measure of irregular wear characteristics of the tire.

US Patent:

20160033368, Feb 4, 2016

Filed:

Oct 31, 2012

Appl. No.:

14/435763

Inventors:

Xavier Neau - Greenville SC, US

International Classification:

G01M 17/02

Abstract:

Systems and methods for analyzing tire tread data to assess tire tread parameters, such as irregular wear characteristics of a tire tread, are provided. More particularly, an automated and robust flattening process c be performed to transform tire tread data, such as a tread surface map, into flattened tire tread data. The flattened tire tread data can provide tread heights defined in a measurement direction that is normal to the surface of the tire tread, as opposed to parallel to a radial axis of the tire. The flattened tread data can be analyzed to assess one or more parameters of the tread of the tire. For instance, local height indicators for the flattened tread data can be determined using a local maximum as a reference. Because the local height indicators are relative heights determined from a local maximum, quantification of tread depth can be more easily obtained.