In-vehicle network system, electronic control unit, and update processing method
US10227053B2 · kind B2 · utility
1Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2016 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Feb 8, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/46
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for use in an in-vehicle network system is provided. The in-vehicle network system includes a plurality of electronic control units that communicate a data frame having a message authentication code (MAC) added thereto with one another via a bus in accordance with the Controller Area Network (CAN) protocol. The method includes detecting the state of a vehicle having the in-vehicle network system mounted therein and updating a MAC key used to generate the MAC under the condition that the detected state of the vehicle is a predetermined state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.