Automatic locking failsafe for vehicles with passive keys
US7683764B2 · kind B2 · utility
12Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2007 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Feb 28, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2209/63
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method of unlocking a vehicle, which includes initiating an auto-lock command, searching an area surrounding the vehicle for a valid key fob, and sending a normal request from interior antenna if a valid key fob is not found. The method further includes sending a wide area request from an interior antenna if the valid key fob is not found from the normal request. The method includes locking the doors if the valid key fob is not found. The method provides a warning and does not lock the doors if the valid key fob is found.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.