Method of associating tire pressure control apparatuses to wheel positions
US9902216B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2015 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Apr 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Tire pressure control devices include first sensors to deliver repeatedly a measured value M1 for the rotation speed of the wheel. A measurand, from which the rotation speed of the associated wheel can be derived, is detected in a pointwise manner by means of a second sensor over a predetermined rotation angle φ of the wheel as a function of time, is subjected to a low pass filtering in a subsequent first time interval Δt1 and from the filtered development of the measurand a second measured value M2 is determined, which is a measurement for the rotation speed or respectively for the angular speed of the associated wheel. Each tire pressure control device transmits at the end of a second time interval Δt2 the second measured value M2 together with an identification of the tire pressure control device to a central unit. Comparing M1 and M2 determines wheel position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.