Software authentication before software update
US11146401B2 · kind B2 · utility
2Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2016 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Feb 12, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W8/245
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A programming session may be initiated to a vehicle ECU by an update device. A software update for the ECU may be authenticated by the update device using an authentication key. When an authentication result indicates successful authentication, the ECU software update is sent by the update device over the in-vehicle network to the ECU. The ECU may then flash a memory with the ECU software update. The authentication key may be obtained from the ECU. The update device may be a vehicle telematics control unit or a service tool coupled to a connector of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.