Method and device for detecting absolute friction wear on at least one tire of a vehicle
US11090985B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Dec 6, 2017 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Dec 6, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B5/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method and an apparatus for determination of the wear on at least one tire of a vehicle, wherein the vehicle has a tire pressure monitoring system, consisting of a pressure sensor, a transmission unit and a reception unit, as well as a computer unit and a data memory having a database. Proceeding from a circumference of the tire (5) defined by the tire manufacturer and thereby a mantle surface having a length L=2πr, wherein r is the radius of the tire (5), the radius decreases during corresponding wear, and thereby the length of the mantle surface also decreases. The length of the flat pattern of a new tire is therefore greater, in terms of length, than the length of the flat pattern of a used tire. This is determined by a sensor (4), the value of which is transmitted by a first module (2) to a second module (3), which is fixed in place. There, the value L is calculated and compared with data in a database and evaluated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.