Tire pressure monitoring device
US6112585A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1996 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Sep 5, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/0444
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tire pressure monitoring device for a vehicle having several wheels comprises a central receiving and evaluation device at the vehicle. Each a receiving antenna (A, B, C, . . . N) is arranged stationarily at the vehicle structure adjacent to at least each active wheel and thus attributed to said specific wheel. All said receiving antennas (A, B, C, . . . N) being connected via each a distinctive connecting line (a, b, c, . . . n) with a single receiver means. Said receiver means comprises a multiplexer-circuit connecting per time interval only one single selected receiving antenna or several selected receiving antennas with said receiving means. Further, said receiver means sensing a field strength of each specific radiogram and thus selecting said specific receiving antenna comprising the highest field strength of a received radiogram during said specific time interval. Thus, central evaluation means may attribute a specific radiogram to said specific wheel being arranged adjacent to said receiving antenna comprising the highest field strength of a received radiogram during said specific time interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.