Method and apparatus for monitoring conditions of a vehicle tire
US5960844A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1997 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Dec 22, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/0493
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for monitoring various physical conditions of pneumatic tires and to a tire which includes a memory device mounted on the interior of the tire within the pressurizable cavity and a separate monitoring device mounted on the tire rim. The memory device contains a battery, an antenna and stored data pertaining to the tire. The monitoring device uses an active self-powered programmable electronic circuitry which obtains data from the memory device and in addition contains one or more sensors which obtains engineering conditions such as temperature, pressure, tire rotation and/or other operated conditions of the pneumatic tire along with the stored information from the memory device. The memory device can be actuated by externally transmitted radio frequency waves from a remote location or by signals from the monitoring device, and the monitoring device can transmit the information to the remote location by a separate, larger and more powerful battery which is mounted on the tire rim than the battery in the memory device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.