Tire pressure sensing system
US6756892B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2002 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Jun 7, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2073
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A monitoring system for monitoring pressure in a tire of a trailer includes an active sensor, a receiver and an indicator. The active sensor is positioned at a first location and is operable to sense the pressure. The receiver is positioned at a second location remote from the first location and within proximity to the sensor. The receiver is operable to generate a signal indicative of the pressure and includes an inductor, and an amplifier having a feedback path. The inductor is positioned relative to the receiver to create an electromagnetically coupling between the inductors such that feedback from the coupling is one of either a substantially zero feedback and a negative feedback. The indicator outside of a vehicle is in communication with the receiver to provide a warning of a low pressure to the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.