Automatic wheel to tire pressure sensor correlation in distributed architecture
US9259978B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2014 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Oct 21, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/0489
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The wheel locations for wireless tire pressure monitoring sensors are automatically learned by comparing the timing of sensor message transmissions to directly measured wheel rotation, such as from an anti-lock brake system. In order to synchronize the data to be detected and compared across a distributed electronic system, first timestamps are applied to RF sensor messages upon reception in a receiver. Second timestamps are applied to decoded sensor data in the receiver when transmission of the data and the first timestamps to a control module begins. The control module applies third timestamps upon reception by the control module. The control module calculates sensor message times by subtracting a difference of the first and second timestamps from the third timestamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.