Faraday type wireless oxygen sensor
US8078388B2 · kind B2 · utility
11Cited by
9References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 7, 2009 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Jun 17, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2560/025
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An oxygen sensor device and method for a motor vehicle having an electrode within an outer shell for measuring oxygen in exhaust gas exiting the vehicle. A communication device, powered by a capacitor, wirelessly transmits the measured amount of oxygen from the electrode to a powertrain control module. Vibration transmitting from the motor vehicle shakes a magnet, wound inside a coil, for generating the electrical current used by the capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.