Method for operating a tire pressure-monitoring unit, and tire pressure-monitoring unit
US9057662B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2013 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Dec 7, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/0488
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for operating a tire pressure monitoring unit for monitoring pneumatic tires of a vehicle includes where a pressure measurement is taken at regular intervals using a pressure sensor and the pressure information is transmitted wirelessly at larger intervals by a transmitter. A control unit checks whether a pressure change exceeding a threshold value has occurred, and, if so, pressure measurements are taken at shortened intervals and the transmission activity is increased. The control unit uses a first threshold value for the pressure change in the case of a stationary vehicle and uses a second threshold value, which differs from the first threshold value, for the pressure change in the case of a moving vehicle. The control unit, by evaluating a signal of an acceleration sensor of the tire pressure monitoring unit, establishes whether the first threshold value or the second threshold value is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.