Patents
US 12768751 B2: System and method for estimating tire wear using acoustic footprint analysis
- Granted
- 2026-10-20
- Filed
- 2022-01-06 application 18266786
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Systems and methods are disclosed herein for estimating tire wear based on acoustic footprint analysis. Tire-mounted sensors provide signals corresponding to dynamic mechanical behavior of the tire, and a computing device graphically constructs spectra comprising time and frequency content of the signals and implements models comprising predetermined spectra associated with an unworn version of the tire for comparison with the graphically constructed spectra for a footprint region of the tire. Graphical features of the spectra associated with the footprint region of the tire are extracted as predefined indicators of stiffness change based on the comparison, wherein tire wear state is estimated based on the extracted graphical features. Exemplary graphical features may include high frequency energy signatures at the footprint region, signal damping signatures at a trailing edge of the footprint region, increased energy signatures in a tread passage frequency band at the footprint region, and the like.
Source: PTBLXML, file of 2026-10-20 (ipgb20261020.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Bridgestone Americas Tire Operations, LLC 637 patents | US company or organization | Nashville, TN | PTBLXML, file of 2026-10-20 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Yousof Azizi | Akron, OH | 3 | PTBLXML, file of 2026-10-20 | |
| Thomas A. Sams | Akron, OH | 17 | PTBLXML, file of 2026-10-20 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01M | Testing static or dynamic balance of machines or structures; testing of structures or apparatus, not otherwise provided for | G01M17/025 | PTBLXML, file of 2026-10-20 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.