Vehicle-mounted control device
US10153825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2015 |
| Grant date | Dec 11, 2018 |
| Priority date | — |
| Expiry date | Mar 1, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A vehicle-mounted control device, which communicates with a vehicle-mounted node via a common bus and follows a communication protocol that the lower the priority of a data frame output from the vehicle-mounted node, the longer a waiting time, includes: an arbitration device that suspends transmission of the transmission target frame to the bus when the priority of a transmission target frame is lower than an output data frame from the vehicle-mounted node, and continues transmission of the transmission target frame to the bus when the priority of the transmission target frame is higher than the output data frame; and a change device that changes the priority of the transmission target frame to be the highest of all data frames when the transmission of the transmission target frame is suspended for a prescribed time or longer as a result of arbitration control by the arbitration device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.