Accelerometer and voltage based key-on and key-off detection
US9449435B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2013 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Apr 5, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C5/0808
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A device may receive a first type of measurement associated with a vehicle and receive a second type of measurement associated with a power source connected to the vehicle. The second type of measurement may be different than the first type of measurement. The device may determine a key-on or a key-off status of the vehicle based on the first type of measurement and the second type of measurement without communicating with a vehicle diagnostic system associated with the vehicle. The key-off status may correspond to an engine of the vehicle being powered off and the key-on status may correspond to the engine of the vehicle being powered on. The device may initiate communications with the vehicle diagnostic system based on determining the key-on status.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.