Method to provide warning to relay attacks on keyless entry and start systems
US10391975B2 · kind B2 · utility
1Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 2018 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Jan 30, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2025/1016
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method and apparatus are presented for authenticating a vehicle equipped with a passive keyless entry and start system. The method includes sending a request for unlock or ignition start from the key fob to a vehicle's network access device (NAD), sending a first challenge signal from the NAD to the key fob, determining if the key fob is within range of the NAD, sending a second challenge signal from the NAD to the mobile device, determining if the mobile device is within range of the NAD, and sending a warning to the mobile device when the key fob or mobile device is not within range of the NAD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.